Update compact_wrtifacts

14 files changed, 3311 insertions, 1820 deletions

diff --git a/packages/contract-wrappers/src/compact_artifacts/DummyERC20Token.json b/packages/contract-wrappers/src/compact_artifacts/DummyERC20Token.json
new file mode 100644
index 000000000..0fe22d7f9
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/DummyERC20Token.json
@@ -0,0 +1,306 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "DummyERC20Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "decimals",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "mint",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_target",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "setBalance",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_name",
+                        "type": "string"
+                    },
+                    {
+                        "name": "_symbol",
+                        "type": "string"
+                    },
+                    {
+                        "name": "_decimals",
+                        "type": "uint8"
+                    },
+                    {
+                        "name": "_totalSupply",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            }
+        ]
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/DummyERC721Token.json b/packages/contract-wrappers/src/compact_artifacts/DummyERC721Token.json
new file mode 100644
index 000000000..4a75b9aaf
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/DummyERC721Token.json
@@ -0,0 +1,368 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "DummyERC721Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getApproved",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "mint",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "exists",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "ownerOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "setApprovalForAll",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "_data",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_operator",
+                        "type": "address"
+                    }
+                ],
+                "name": "isApprovedForAll",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "name",
+                        "type": "string"
+                    },
+                    {
+                        "name": "symbol",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_approved",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_operator",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "ApprovalForAll",
+                "type": "event"
+            }
+        ]
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/DummyToken.json b/packages/contract-wrappers/src/compact_artifacts/DummyToken.json
deleted file mode 100644
index f64a8cd3d..000000000
--- a/packages/contract-wrappers/src/compact_artifacts/DummyToken.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "contract_name": "DummyToken",
-    "abi": [
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_target",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "setBalance",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        }
-    ]
-}
diff --git a/packages/contract-wrappers/src/compact_artifacts/ERC20Proxy.json b/packages/contract-wrappers/src/compact_artifacts/ERC20Proxy.json
new file mode 100644
index 000000000..430a8af68
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/ERC20Proxy.json
@@ -0,0 +1,43 @@
+{
+    "contractName": "ERC20Proxy",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "authorized",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getAuthorizedAddresses",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            }
+        ]
+    },
+    "networks": {
+        "50": { "address": "0x1dc4c1cefef38a777b15aa20260a54e584b16c48" }
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/ERC20Token.json b/packages/contract-wrappers/src/compact_artifacts/ERC20Token.json
new file mode 100644
index 000000000..46f18b4e5
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/ERC20Token.json
@@ -0,0 +1,174 @@
+{
+    "contractName": "ERC20Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "success",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "supply",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "success",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "balance",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "success",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_spender",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "remaining",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "type": "function"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            }
+        ]
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/ERC721Proxy.json b/packages/contract-wrappers/src/compact_artifacts/ERC721Proxy.json
new file mode 100644
index 000000000..8924ede96
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/ERC721Proxy.json
@@ -0,0 +1,43 @@
+{
+    "contractName": "ERC20Proxy",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "authorized",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "getAuthorizedAddresses",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address[]"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            }
+        ]
+    },
+    "networks": {
+        "50": { "address": "0x1d7022f5b17d2f8b695918fb48fa1089c9f85401" }
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/ERC721Token.json b/packages/contract-wrappers/src/compact_artifacts/ERC721Token.json
new file mode 100644
index 000000000..d3208e197
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/ERC721Token.json
@@ -0,0 +1,322 @@
+{
+    "schemaVersion": "2.0.0",
+    "contractName": "ERC721Token",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "getApproved",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "exists",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "ownerOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "setApprovalForAll",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "_data",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "safeTransferFrom",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "name": "_operator",
+                        "type": "address"
+                    }
+                ],
+                "name": "isApprovedForAll",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_name",
+                        "type": "string"
+                    },
+                    {
+                        "name": "_symbol",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_approved",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_tokenId",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_operator",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_approved",
+                        "type": "bool"
+                    }
+                ],
+                "name": "ApprovalForAll",
+                "type": "event"
+            }
+        ]
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/EtherToken.json b/packages/contract-wrappers/src/compact_artifacts/EtherToken.json
deleted file mode 100644
index 26cca57cd..000000000
--- a/packages/contract-wrappers/src/compact_artifacts/EtherToken.json
+++ /dev/null
@@ -1,287 +0,0 @@
-{
-    "contract_name": "EtherToken",
-    "abi": [
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "name",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "string"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_spender",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "approve",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "totalSupply",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_from",
-                    "type": "address"
-                },
-                {
-                    "name": "_to",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "transferFrom",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "amount",
-                    "type": "uint256"
-                }
-            ],
-            "name": "withdraw",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "decimals",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint8"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_owner",
-                    "type": "address"
-                }
-            ],
-            "name": "balanceOf",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "symbol",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "string"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_to",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "transfer",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [],
-            "name": "deposit",
-            "outputs": [],
-            "payable": true,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_owner",
-                    "type": "address"
-                },
-                {
-                    "name": "_spender",
-                    "type": "address"
-                }
-            ],
-            "name": "allowance",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "payable": true,
-            "type": "fallback"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "_from",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "_to",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "Transfer",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "_owner",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "_spender",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "Approval",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "_owner",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "Deposit",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "_owner",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "Withdrawal",
-            "type": "event"
-        }
-    ],
-    "networks": {
-        "1": {
-            "address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
-        },
-        "3": {
-            "address": "0xc00fd9820cd2898cc4c054b7bf142de637ad129a"
-        },
-        "4": {
-            "address": "0xc778417e063141139fce010982780140aa0cd5ab"
-        },
-        "42": {
-            "address": "0x653e49e301e508a13237c0ddc98ae7d4cd2667a1"
-        },
-        "50": {
-            "address": "0x871dd7c2b4b25e1aa18728e9d5f2af4c4e431f5c"
-        }
-    }
-}
diff --git a/packages/contract-wrappers/src/compact_artifacts/Exchange.json b/packages/contract-wrappers/src/compact_artifacts/Exchange.json
index af8db7360..5ba9017c3 100644
--- a/packages/contract-wrappers/src/compact_artifacts/Exchange.json
+++ b/packages/contract-wrappers/src/compact_artifacts/Exchange.json
@@ -1,608 +1,1754 @@
 {
-    "contract_name": "Exchange",
-    "abi": [
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "numerator",
-                    "type": "uint256"
-                },
-                {
-                    "name": "denominator",
-                    "type": "uint256"
-                },
-                {
-                    "name": "target",
-                    "type": "uint256"
-                }
-            ],
-            "name": "isRoundingError",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "filled",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "cancelled",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5][]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6][]"
-                },
-                {
-                    "name": "fillTakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "name": "shouldThrowOnInsufficientBalanceOrAllowance",
-                    "type": "bool"
-                },
-                {
-                    "name": "v",
-                    "type": "uint8[]"
-                },
-                {
-                    "name": "r",
-                    "type": "bytes32[]"
-                },
-                {
-                    "name": "s",
-                    "type": "bytes32[]"
-                }
-            ],
-            "name": "fillOrdersUpTo",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6]"
-                },
-                {
-                    "name": "cancelTakerTokenAmount",
-                    "type": "uint256"
-                }
-            ],
-            "name": "cancelOrder",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "ZRX_TOKEN_CONTRACT",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5][]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6][]"
-                },
-                {
-                    "name": "fillTakerTokenAmounts",
-                    "type": "uint256[]"
-                },
-                {
-                    "name": "v",
-                    "type": "uint8[]"
-                },
-                {
-                    "name": "r",
-                    "type": "bytes32[]"
-                },
-                {
-                    "name": "s",
-                    "type": "bytes32[]"
-                }
-            ],
-            "name": "batchFillOrKillOrders",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6]"
-                },
-                {
-                    "name": "fillTakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "name": "v",
-                    "type": "uint8"
-                },
-                {
-                    "name": "r",
-                    "type": "bytes32"
-                },
-                {
-                    "name": "s",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "fillOrKillOrder",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "orderHash",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "getUnavailableTakerTokenAmount",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "signer",
-                    "type": "address"
-                },
-                {
-                    "name": "hash",
-                    "type": "bytes32"
-                },
-                {
-                    "name": "v",
-                    "type": "uint8"
-                },
-                {
-                    "name": "r",
-                    "type": "bytes32"
-                },
-                {
-                    "name": "s",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "isValidSignature",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "numerator",
-                    "type": "uint256"
-                },
-                {
-                    "name": "denominator",
-                    "type": "uint256"
-                },
-                {
-                    "name": "target",
-                    "type": "uint256"
-                }
-            ],
-            "name": "getPartialAmount",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "TOKEN_TRANSFER_PROXY_CONTRACT",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5][]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6][]"
-                },
-                {
-                    "name": "fillTakerTokenAmounts",
-                    "type": "uint256[]"
-                },
-                {
-                    "name": "shouldThrowOnInsufficientBalanceOrAllowance",
-                    "type": "bool"
-                },
-                {
-                    "name": "v",
-                    "type": "uint8[]"
-                },
-                {
-                    "name": "r",
-                    "type": "bytes32[]"
-                },
-                {
-                    "name": "s",
-                    "type": "bytes32[]"
-                }
-            ],
-            "name": "batchFillOrders",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5][]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6][]"
-                },
-                {
-                    "name": "cancelTakerTokenAmounts",
-                    "type": "uint256[]"
-                }
-            ],
-            "name": "batchCancelOrders",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6]"
-                },
-                {
-                    "name": "fillTakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "name": "shouldThrowOnInsufficientBalanceOrAllowance",
-                    "type": "bool"
-                },
-                {
-                    "name": "v",
-                    "type": "uint8"
-                },
-                {
-                    "name": "r",
-                    "type": "bytes32"
-                },
-                {
-                    "name": "s",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "fillOrder",
-            "outputs": [
-                {
-                    "name": "filledTakerTokenAmount",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "orderAddresses",
-                    "type": "address[5]"
-                },
-                {
-                    "name": "orderValues",
-                    "type": "uint256[6]"
-                }
-            ],
-            "name": "getOrderHash",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bytes32"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "EXTERNAL_QUERY_GAS_LIMIT",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "uint16"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "VERSION",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "string"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "inputs": [
-                {
-                    "name": "_zrxToken",
-                    "type": "address"
-                },
-                {
-                    "name": "_tokenTransferProxy",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "constructor"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "maker",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "taker",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "feeRecipient",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "makerToken",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "takerToken",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "filledMakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "indexed": false,
-                    "name": "filledTakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "indexed": false,
-                    "name": "paidMakerFee",
-                    "type": "uint256"
-                },
-                {
-                    "indexed": false,
-                    "name": "paidTakerFee",
-                    "type": "uint256"
-                },
-                {
-                    "indexed": true,
-                    "name": "tokens",
-                    "type": "bytes32"
-                },
-                {
-                    "indexed": false,
-                    "name": "orderHash",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "LogFill",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "maker",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "feeRecipient",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "makerToken",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "takerToken",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "cancelledMakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "indexed": false,
-                    "name": "cancelledTakerTokenAmount",
-                    "type": "uint256"
-                },
-                {
-                    "indexed": true,
-                    "name": "tokens",
-                    "type": "bytes32"
-                },
-                {
-                    "indexed": false,
-                    "name": "orderHash",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "LogCancel",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "errorId",
-                    "type": "uint8"
-                },
-                {
-                    "indexed": true,
-                    "name": "orderHash",
-                    "type": "bytes32"
-                }
-            ],
-            "name": "LogError",
-            "type": "event"
-        }
-    ],
+    "contractName": "Exchange",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "name": "filled",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmounts",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "batchFillOrders",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "name": "cancelled",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "zrxAssetData",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bytes"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "hash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "signer",
+                        "type": "address"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "preSign",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "uint8"
+                    }
+                ],
+                "name": "assetProxies",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "leftOrder",
+                        "type": "tuple"
+                    },
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "rightOrder",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "leftSignature",
+                        "type": "bytes"
+                    },
+                    {
+                        "name": "rightSignature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "matchOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "components": [
+                                    {
+                                        "name": "makerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "makerFeePaid",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerFeePaid",
+                                        "type": "uint256"
+                                    }
+                                ],
+                                "name": "left",
+                                "type": "tuple"
+                            },
+                            {
+                                "components": [
+                                    {
+                                        "name": "makerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerAssetFilledAmount",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "makerFeePaid",
+                                        "type": "uint256"
+                                    },
+                                    {
+                                        "name": "takerFeePaid",
+                                        "type": "uint256"
+                                    }
+                                ],
+                                "name": "right",
+                                "type": "tuple"
+                            },
+                            {
+                                "name": "leftMakerAssetSpreadAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "matchedFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "fillOrderNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "fillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    }
+                ],
+                "name": "batchCancelOrders",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmounts",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "batchFillOrKillOrders",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "salt",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "cancelOrdersUpTo",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmounts",
+                        "type": "uint256[]"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "batchFillOrdersNoThrow",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "assetProxyId",
+                        "type": "uint8"
+                    },
+                    {
+                        "name": "newAssetProxy",
+                        "type": "address"
+                    },
+                    {
+                        "name": "oldAssetProxy",
+                        "type": "address"
+                    }
+                ],
+                "name": "registerAssetProxy",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    }
+                ],
+                "name": "transactions",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "fillOrKillOrder",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "fillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "makerEpoch",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "validator",
+                        "type": "address"
+                    },
+                    {
+                        "name": "approval",
+                        "type": "bool"
+                    }
+                ],
+                "name": "setSignatureValidatorApproval",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowedValidators",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketSellOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "bytes32"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "preSigned",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "owner",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "assetProxyId",
+                        "type": "uint8"
+                    }
+                ],
+                "name": "getAssetProxy",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "makerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketBuyOrdersNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "fillOrder",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "fillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "salt",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signer",
+                        "type": "address"
+                    },
+                    {
+                        "name": "data",
+                        "type": "bytes"
+                    },
+                    {
+                        "name": "signature",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "executeTransaction",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    }
+                ],
+                "name": "getOrderInfo",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "orderStatus",
+                                "type": "uint8"
+                            },
+                            {
+                                "name": "orderHash",
+                                "type": "bytes32"
+                            },
+                            {
+                                "name": "orderTakerAssetFilledAmount",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "orderInfo",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "order",
+                        "type": "tuple"
+                    }
+                ],
+                "name": "cancelOrder",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "takerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketSellOrdersNoThrow",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "takerAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "feeRecipientAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "senderAddress",
+                                "type": "address"
+                            },
+                            {
+                                "name": "makerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFee",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "expirationTimeSeconds",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "salt",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerAssetData",
+                                "type": "bytes"
+                            },
+                            {
+                                "name": "takerAssetData",
+                                "type": "bytes"
+                            }
+                        ],
+                        "name": "orders",
+                        "type": "tuple[]"
+                    },
+                    {
+                        "name": "makerAssetFillAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "name": "signatures",
+                        "type": "bytes[]"
+                    }
+                ],
+                "name": "marketBuyOrders",
+                "outputs": [
+                    {
+                        "components": [
+                            {
+                                "name": "makerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerAssetFilledAmount",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "makerFeePaid",
+                                "type": "uint256"
+                            },
+                            {
+                                "name": "takerFeePaid",
+                                "type": "uint256"
+                            }
+                        ],
+                        "name": "totalFillResults",
+                        "type": "tuple"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "currentContextAddress",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "newOwner",
+                        "type": "address"
+                    }
+                ],
+                "name": "transferOwnership",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "VERSION",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "inputs": [
+                    {
+                        "name": "_zrxAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "constructor"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": false,
+                        "name": "id",
+                        "type": "uint8"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "newAssetProxy",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "oldAssetProxy",
+                        "type": "address"
+                    }
+                ],
+                "name": "AssetProxySet",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "makerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "feeRecipientAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerAssetFilledAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAssetFilledAmount",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerFeePaid",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerFeePaid",
+                        "type": "uint256"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "orderHash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerAssetData",
+                        "type": "bytes"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "Fill",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "makerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "feeRecipientAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "orderHash",
+                        "type": "bytes32"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerAssetData",
+                        "type": "bytes"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "takerAssetData",
+                        "type": "bytes"
+                    }
+                ],
+                "name": "Cancel",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "makerAddress",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "makerEpoch",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "CancelUpTo",
+                "type": "event"
+            }
+        ]
+    },
     "networks": {
-        "1": {
-            "address": "0x12459c951127e0c374ff9105dda097662a027093"
-        },
-        "3": {
-            "address": "0x479cc461fecd078f766ecc58533d6f69580cf3ac"
-        },
-        "4": {
-            "address": "0x1d16ef40fac01cec8adac2ac49427b9384192c05"
-        },
-        "42": {
-            "address": "0x90fe2af704b34e0224bf2299c838e04d4dcf1364"
-        },
         "50": {
             "address": "0x48bacb9266a570d521063ef5dd96e61686dbe788"
         }
diff --git a/packages/contract-wrappers/src/compact_artifacts/Token.json b/packages/contract-wrappers/src/compact_artifacts/Token.json
deleted file mode 100644
index 3b5a86ae0..000000000
--- a/packages/contract-wrappers/src/compact_artifacts/Token.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-    "contract_name": "Token",
-    "abi": [
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_spender",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "approve",
-            "outputs": [
-                {
-                    "name": "success",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "totalSupply",
-            "outputs": [
-                {
-                    "name": "supply",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_from",
-                    "type": "address"
-                },
-                {
-                    "name": "_to",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "transferFrom",
-            "outputs": [
-                {
-                    "name": "success",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_owner",
-                    "type": "address"
-                }
-            ],
-            "name": "balanceOf",
-            "outputs": [
-                {
-                    "name": "balance",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_to",
-                    "type": "address"
-                },
-                {
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "transfer",
-            "outputs": [
-                {
-                    "name": "success",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_owner",
-                    "type": "address"
-                },
-                {
-                    "name": "_spender",
-                    "type": "address"
-                }
-            ],
-            "name": "allowance",
-            "outputs": [
-                {
-                    "name": "remaining",
-                    "type": "uint256"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "_from",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "_to",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "Transfer",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "_owner",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "_spender",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "_value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "Approval",
-            "type": "event"
-        }
-    ]
-}
diff --git a/packages/contract-wrappers/src/compact_artifacts/TokenRegistry.json b/packages/contract-wrappers/src/compact_artifacts/TokenRegistry.json
deleted file mode 100644
index 0f583628c..000000000
--- a/packages/contract-wrappers/src/compact_artifacts/TokenRegistry.json
+++ /dev/null
@@ -1,547 +0,0 @@
-{
-    "contract_name": "TokenRegistry",
-    "abi": [
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                },
-                {
-                    "name": "_index",
-                    "type": "uint256"
-                }
-            ],
-            "name": "removeToken",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_name",
-                    "type": "string"
-                }
-            ],
-            "name": "getTokenAddressByName",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_symbol",
-                    "type": "string"
-                }
-            ],
-            "name": "getTokenAddressBySymbol",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                },
-                {
-                    "name": "_swarmHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "setTokenSwarmHash",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                }
-            ],
-            "name": "getTokenMetaData",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                },
-                {
-                    "name": "",
-                    "type": "string"
-                },
-                {
-                    "name": "",
-                    "type": "string"
-                },
-                {
-                    "name": "",
-                    "type": "uint8"
-                },
-                {
-                    "name": "",
-                    "type": "bytes"
-                },
-                {
-                    "name": "",
-                    "type": "bytes"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "owner",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                },
-                {
-                    "name": "_name",
-                    "type": "string"
-                },
-                {
-                    "name": "_symbol",
-                    "type": "string"
-                },
-                {
-                    "name": "_decimals",
-                    "type": "uint8"
-                },
-                {
-                    "name": "_ipfsHash",
-                    "type": "bytes"
-                },
-                {
-                    "name": "_swarmHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "addToken",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                },
-                {
-                    "name": "_name",
-                    "type": "string"
-                }
-            ],
-            "name": "setTokenName",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "name": "tokens",
-            "outputs": [
-                {
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "name": "name",
-                    "type": "string"
-                },
-                {
-                    "name": "symbol",
-                    "type": "string"
-                },
-                {
-                    "name": "decimals",
-                    "type": "uint8"
-                },
-                {
-                    "name": "ipfsHash",
-                    "type": "bytes"
-                },
-                {
-                    "name": "swarmHash",
-                    "type": "bytes"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "name": "tokenAddresses",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_name",
-                    "type": "string"
-                }
-            ],
-            "name": "getTokenByName",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                },
-                {
-                    "name": "",
-                    "type": "string"
-                },
-                {
-                    "name": "",
-                    "type": "string"
-                },
-                {
-                    "name": "",
-                    "type": "uint8"
-                },
-                {
-                    "name": "",
-                    "type": "bytes"
-                },
-                {
-                    "name": "",
-                    "type": "bytes"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "getTokenAddresses",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address[]"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                },
-                {
-                    "name": "_ipfsHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "setTokenIpfsHash",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "_symbol",
-                    "type": "string"
-                }
-            ],
-            "name": "getTokenBySymbol",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                },
-                {
-                    "name": "",
-                    "type": "string"
-                },
-                {
-                    "name": "",
-                    "type": "string"
-                },
-                {
-                    "name": "",
-                    "type": "uint8"
-                },
-                {
-                    "name": "",
-                    "type": "bytes"
-                },
-                {
-                    "name": "",
-                    "type": "bytes"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "_token",
-                    "type": "address"
-                },
-                {
-                    "name": "_symbol",
-                    "type": "string"
-                }
-            ],
-            "name": "setTokenSymbol",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "newOwner",
-                    "type": "address"
-                }
-            ],
-            "name": "transferOwnership",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "name",
-                    "type": "string"
-                },
-                {
-                    "indexed": false,
-                    "name": "symbol",
-                    "type": "string"
-                },
-                {
-                    "indexed": false,
-                    "name": "decimals",
-                    "type": "uint8"
-                },
-                {
-                    "indexed": false,
-                    "name": "ipfsHash",
-                    "type": "bytes"
-                },
-                {
-                    "indexed": false,
-                    "name": "swarmHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "LogAddToken",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "name",
-                    "type": "string"
-                },
-                {
-                    "indexed": false,
-                    "name": "symbol",
-                    "type": "string"
-                },
-                {
-                    "indexed": false,
-                    "name": "decimals",
-                    "type": "uint8"
-                },
-                {
-                    "indexed": false,
-                    "name": "ipfsHash",
-                    "type": "bytes"
-                },
-                {
-                    "indexed": false,
-                    "name": "swarmHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "LogRemoveToken",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "oldName",
-                    "type": "string"
-                },
-                {
-                    "indexed": false,
-                    "name": "newName",
-                    "type": "string"
-                }
-            ],
-            "name": "LogTokenNameChange",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "oldSymbol",
-                    "type": "string"
-                },
-                {
-                    "indexed": false,
-                    "name": "newSymbol",
-                    "type": "string"
-                }
-            ],
-            "name": "LogTokenSymbolChange",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "oldIpfsHash",
-                    "type": "bytes"
-                },
-                {
-                    "indexed": false,
-                    "name": "newIpfsHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "LogTokenIpfsHashChange",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "indexed": false,
-                    "name": "oldSwarmHash",
-                    "type": "bytes"
-                },
-                {
-                    "indexed": false,
-                    "name": "newSwarmHash",
-                    "type": "bytes"
-                }
-            ],
-            "name": "LogTokenSwarmHashChange",
-            "type": "event"
-        }
-    ],
-    "networks": {
-        "1": {
-            "address": "0x926a74c5c36adf004c87399e65f75628b0f98d2c"
-        },
-        "3": {
-            "address": "0x6b1a50f0bb5a7995444bd3877b22dc89c62843ed"
-        },
-        "4": {
-            "address": "0x4e9aad8184de8833365fea970cd9149372fdf1e6"
-        },
-        "42": {
-            "address": "0xf18e504561f4347bea557f3d4558f559dddbae7f"
-        },
-        "50": {
-            "address": "0x0b1ba0af832d7c05fd64161e0db78e85978e8082"
-        }
-    }
-}
diff --git a/packages/contract-wrappers/src/compact_artifacts/TokenTransferProxy.json b/packages/contract-wrappers/src/compact_artifacts/TokenTransferProxy.json
deleted file mode 100644
index 8cf551ddb..000000000
--- a/packages/contract-wrappers/src/compact_artifacts/TokenTransferProxy.json
+++ /dev/null
@@ -1,187 +0,0 @@
-{
-    "contract_name": "TokenTransferProxy",
-    "abi": [
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "token",
-                    "type": "address"
-                },
-                {
-                    "name": "from",
-                    "type": "address"
-                },
-                {
-                    "name": "to",
-                    "type": "address"
-                },
-                {
-                    "name": "value",
-                    "type": "uint256"
-                }
-            ],
-            "name": "transferFrom",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "target",
-                    "type": "address"
-                }
-            ],
-            "name": "addAuthorizedAddress",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "",
-                    "type": "uint256"
-                }
-            ],
-            "name": "authorities",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "target",
-                    "type": "address"
-                }
-            ],
-            "name": "removeAuthorizedAddress",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "owner",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [
-                {
-                    "name": "",
-                    "type": "address"
-                }
-            ],
-            "name": "authorized",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "bool"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": true,
-            "inputs": [],
-            "name": "getAuthorizedAddresses",
-            "outputs": [
-                {
-                    "name": "",
-                    "type": "address[]"
-                }
-            ],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "constant": false,
-            "inputs": [
-                {
-                    "name": "newOwner",
-                    "type": "address"
-                }
-            ],
-            "name": "transferOwnership",
-            "outputs": [],
-            "payable": false,
-            "type": "function"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "target",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "caller",
-                    "type": "address"
-                }
-            ],
-            "name": "LogAuthorizedAddressAdded",
-            "type": "event"
-        },
-        {
-            "anonymous": false,
-            "inputs": [
-                {
-                    "indexed": true,
-                    "name": "target",
-                    "type": "address"
-                },
-                {
-                    "indexed": true,
-                    "name": "caller",
-                    "type": "address"
-                }
-            ],
-            "name": "LogAuthorizedAddressRemoved",
-            "type": "event"
-        }
-    ],
-    "networks": {
-        "1": {
-            "address": "0x8da0d80f5007ef1e431dd2127178d224e32c2ef4"
-        },
-        "3": {
-            "address": "0x4e9aad8184de8833365fea970cd9149372fdf1e6"
-        },
-        "4": {
-            "address": "0xa8e9fa8f91e5ae138c74648c9c304f1c75003a8d"
-        },
-        "42": {
-            "address": "0x087eed4bc1ee3de49befbd66c662b434b15d49d4"
-        },
-        "50": {
-            "address": "0x1dc4c1cefef38a777b15aa20260a54e584b16c48"
-        }
-    }
-}
diff --git a/packages/contract-wrappers/src/compact_artifacts/WETH9.json b/packages/contract-wrappers/src/compact_artifacts/WETH9.json
new file mode 100644
index 000000000..79a926860
--- /dev/null
+++ b/packages/contract-wrappers/src/compact_artifacts/WETH9.json
@@ -0,0 +1,301 @@
+{
+    "contractName": "WETH9",
+    "compilerOutput": {
+        "abi": [
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "name",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "guy",
+                        "type": "address"
+                    },
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "approve",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "totalSupply",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "src",
+                        "type": "address"
+                    },
+                    {
+                        "name": "dst",
+                        "type": "address"
+                    },
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transferFrom",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "withdraw",
+                "outputs": [],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "decimals",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint8"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "balanceOf",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [],
+                "name": "symbol",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "string"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [
+                    {
+                        "name": "dst",
+                        "type": "address"
+                    },
+                    {
+                        "name": "wad",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "transfer",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "bool"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "nonpayable",
+                "type": "function"
+            },
+            {
+                "constant": false,
+                "inputs": [],
+                "name": "deposit",
+                "outputs": [],
+                "payable": true,
+                "stateMutability": "payable",
+                "type": "function"
+            },
+            {
+                "constant": true,
+                "inputs": [
+                    {
+                        "name": "",
+                        "type": "address"
+                    },
+                    {
+                        "name": "",
+                        "type": "address"
+                    }
+                ],
+                "name": "allowance",
+                "outputs": [
+                    {
+                        "name": "",
+                        "type": "uint256"
+                    }
+                ],
+                "payable": false,
+                "stateMutability": "view",
+                "type": "function"
+            },
+            {
+                "payable": true,
+                "stateMutability": "payable",
+                "type": "fallback"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_spender",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Approval",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_from",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": true,
+                        "name": "_to",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Transfer",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Deposit",
+                "type": "event"
+            },
+            {
+                "anonymous": false,
+                "inputs": [
+                    {
+                        "indexed": true,
+                        "name": "_owner",
+                        "type": "address"
+                    },
+                    {
+                        "indexed": false,
+                        "name": "_value",
+                        "type": "uint256"
+                    }
+                ],
+                "name": "Withdrawal",
+                "type": "event"
+            }
+        ]
+    },
+    "networks": {
+        "1": {
+            "address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
+        },
+        "3": {
+            "address": "0xc00fd9820cd2898cc4c054b7bf142de637ad129a"
+        },
+        "4": {
+            "address": "0xc778417e063141139fce010982780140aa0cd5ab"
+        },
+        "42": {
+            "address": "0x653e49e301e508a13237c0ddc98ae7d4cd2667a1"
+        },
+        "50": {
+            "address": "0x871dd7c2b4b25e1aa18728e9d5f2af4c4e431f5c"
+        }
+    }
+}
diff --git a/packages/contract-wrappers/src/compact_artifacts/ZRX.json b/packages/contract-wrappers/src/compact_artifacts/ZRXToken.json
index e40b8f268..4881d5eb1 100644
--- a/packages/contract-wrappers/src/compact_artifacts/ZRX.json
+++ b/packages/contract-wrappers/src/compact_artifacts/ZRXToken.json
@@ -1,5 +1,8 @@
 {
-    "contract_name": "ZRX",
+    "contractName": "ZRXToken",
+    "compilerOutput": {
+        "abi": []
+    },
     "networks": {
         "1": {
             "address": "0xe41d2489571d322189246dafa5ebde1f4699f498"
@@ -14,7 +17,7 @@
             "address": "0x6ff6c0ff1d68b964901f986d4c9fa3ac68346570"
         },
         "50": {
-            "address": "0x1d7022f5b17d2f8b695918fb48fa1089c9f85401"
+            "address": "0x0b1ba0af832d7c05fd64161e0db78e85978e8082"
         }
     }
 }