{ "contractName": "AudiusClaimDistributor", "abi": [ { "inputs": [ { "internalType": "address", "name": "_token", "type": "address" }, { "internalType": "bytes32", "name": "_merkleRoot", "type": "bytes32" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint256", "name": "index", "type": "uint256" }, { "indexed": false, "internalType": "address", "name": "account", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "Claimed", "type": "event" }, { "inputs": [], "name": "merkleRoot", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function", "constant": true }, { "inputs": [], "name": "token", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function", "constant": true }, { "inputs": [ { "internalType": "uint256", "name": "index", "type": "uint256" } ], "name": "isClaimed", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function", "constant": true }, { "inputs": [ { "internalType": "uint256", "name": "index", "type": "uint256" }, { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" }, { "internalType": "bytes32[]", "name": "merkleProof", "type": "bytes32[]" } ], "name": "claim", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.10+commit.00c0fcaf\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_token\",\"type\":\"address\"},{\"internalType\":\"bytes32\",\"name\":\"_merkleRoot\",\"type\":\"bytes32\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Claimed\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"bytes32[]\",\"name\":\"merkleProof\",\"type\":\"bytes32[]\"}],\"name\":\"claim\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"isClaimed\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"merkleRoot\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{\"claim(uint256,address,uint256,bytes32[])\":{\"notice\":\"No caller permissioning needed since token is transfered to account argument, and there is no incentive to call function for another account. Can only submit claim for full claimable amount, otherwise proof verification will fail.\"}},\"notice\":\"Replicated from (No changes made): https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol\"}},\"settings\":{\"compilationTarget\":{\"/Users/joey/workspace/claim-distribution/contracts/AudiusClaimDistributor.sol\":\"AudiusClaimDistributor\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"details\":{\"constantOptimizer\":true,\"cse\":true,\"deduplicate\":true,\"jumpdestRemover\":true,\"orderLiterals\":true,\"peephole\":true,\"yul\":false},\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/joey/workspace/claim-distribution/contracts/AudiusClaimDistributor.sol\":{\"keccak256\":\"0xb479969ba8f612589c6958cd6bdffb8bfd3c26bfcfccc5fc73bdf81f58779ff2\",\"license\":\"UNLICENSED\",\"urls\":[\"bzz-raw://7ffcd574dffcdadba4ebba659cde0509ed302c341eb03153997b89f84bb854c8\",\"dweb:/ipfs/QmZGXJh2BSgeLr92Jd2pW4hicKL7Muvx8ENfR2kBH9KTKv\"]},\"@openzeppelin/contracts/cryptography/MerkleProof.sol\":{\"keccak256\":\"0x96a652802a06645a5908f74f104ec95ff0897e261e7028ee319bafc55582b597\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://5afea8071316055c01a3d144da77523b8ae7ec8295e99559000cb07b23b98d30\",\"dweb:/ipfs/QmX14dHGgyErJb3R7wSNBSgxLdyX6EAVwJsZ6yK1xyG1Mo\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x5c26b39d26f7ed489e555d955dcd3e01872972e71fdd1528e93ec164e4f23385\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://efdc632af6960cf865dbc113665ea1f5b90eab75cc40ec062b2f6ae6da582017\",\"dweb:/ipfs/QmfAZFDuG62vxmAN9DnXApv7e7PMzPqi4RkqqZHLMSQiY5\"]}},\"version\":1}", 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"source": "// SPDX-License-Identifier: UNLICENSED\npragma solidity >=0.6.0;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"@openzeppelin/contracts/cryptography/MerkleProof.sol\";\n\n/**\n * Replicated from (No changes made): https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol\n */\ncontract AudiusClaimDistributor {\n address public token;\n bytes32 public merkleRoot;\n\n // This is a packed array of booleans.\n mapping(uint256 => uint256) private claimedBitMap;\n\n // This event is triggered whenever a call to #claim succeeds.\n event Claimed(uint256 index, address account, uint256 amount);\n\n constructor(address _token, bytes32 _merkleRoot) public {\n token = _token;\n merkleRoot = _merkleRoot;\n }\n\n function isClaimed(uint256 index) public view returns (bool) {\n uint256 claimedWordIndex = index / 256;\n uint256 claimedBitIndex = index % 256;\n uint256 claimedWord = claimedBitMap[claimedWordIndex];\n uint256 mask = (1 << claimedBitIndex);\n return claimedWord & mask == mask;\n }\n\n function _setClaimed(uint256 index) private {\n uint256 claimedWordIndex = index / 256;\n uint256 claimedBitIndex = index % 256;\n claimedBitMap[claimedWordIndex] = claimedBitMap[claimedWordIndex] | (1 << claimedBitIndex);\n }\n\n /**\n * No caller permissioning needed since token is transfered to account argument,\n * and there is no incentive to call function for another account.\n * Can only submit claim for full claimable amount, otherwise proof verification will fail.\n */\n function claim(uint256 index, address account, uint256 amount, bytes32[] calldata merkleProof) external {\n require(!isClaimed(index), 'AudiusClaimDistributor: Drop already claimed.');\n\n // Verify the merkle proof.\n bytes32 node = keccak256(abi.encodePacked(index, account, amount));\n require(MerkleProof.verify(merkleProof, merkleRoot, node), 'AudiusClaimDistributor: Invalid proof.');\n\n // Mark it claimed and send the token.\n _setClaimed(index);\n require(IERC20(token).transfer(account, amount), 'AudiusClaimDistributor: Transfer failed.');\n\n emit Claimed(index, account, amount);\n }\n}\n", "sourcePath": "/Users/joey/workspace/claim-distribution/contracts/AudiusClaimDistributor.sol", "ast": { "absolutePath": "/Users/joey/workspace/claim-distribution/contracts/AudiusClaimDistributor.sol", "exportedSymbols": { "AudiusClaimDistributor": [ 171 ] }, "id": 172, "license": "UNLICENSED", "nodeType": "SourceUnit", "nodes": [ { "id": 1, "literals": [ "solidity", ">=", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "39:24:0" }, { "absolutePath": "@openzeppelin/contracts/token/ERC20/IERC20.sol", "file": "@openzeppelin/contracts/token/ERC20/IERC20.sol", "id": 2, "nodeType": "ImportDirective", "scope": 172, "sourceUnit": 354, "src": "65:56:0", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@openzeppelin/contracts/cryptography/MerkleProof.sol", "file": "@openzeppelin/contracts/cryptography/MerkleProof.sol", "id": 3, "nodeType": "ImportDirective", "scope": 172, "sourceUnit": 276, "src": "122:62:0", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 4, "nodeType": "StructuredDocumentation", "src": "186:135:0", "text": " Replicated from (No changes made): https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol" }, "fullyImplemented": true, "id": 171, "linearizedBaseContracts": [ 171 ], "name": "AudiusClaimDistributor", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "functionSelector": "fc0c546a", "id": 6, "mutability": "mutable", "name": "token", "nodeType": "VariableDeclaration", "overrides": null, "scope": 171, "src": "360:20:0", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5, "name": "address", "nodeType": "ElementaryTypeName", "src": "360:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "2eb4a7ab", "id": 8, "mutability": "mutable", "name": "merkleRoot", "nodeType": "VariableDeclaration", "overrides": null, "scope": 171, "src": "386:25:0", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 7, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "386:7:0", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 12, "mutability": "mutable", "name": "claimedBitMap", "nodeType": "VariableDeclaration", "overrides": null, "scope": 171, "src": "461:49:0", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" }, "typeName": { "id": 11, "keyType": { "id": 9, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "469:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "461:27:0", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" }, "valueType": { "id": 10, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "480:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "private" }, { "anonymous": false, "documentation": null, "id": 20, "name": "Claimed", "nodeType": "EventDefinition", "parameters": { "id": 19, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 14, "indexed": false, "mutability": "mutable", "name": "index", 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"value": null, "visibility": "internal" }, { "constant": false, "id": 113, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 170, "src": "1671:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 112, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1671:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 116, "mutability": "mutable", "name": "merkleProof", "nodeType": "VariableDeclaration", "overrides": null, "scope": 170, "src": "1687:30:0", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$dyn_calldata_ptr", "typeString": "bytes32[]" }, "typeName": { "baseType": { "id": 114, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1687:7:0", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 115, "length": null, "nodeType": "ArrayTypeName", "src": "1687:9:0", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$dyn_storage_ptr", "typeString": "bytes32[]" } }, "value": null, "visibility": "internal" } ], "src": "1638:80:0" }, "returnParameters": { "id": 118, "nodeType": "ParameterList", "parameters": [], "src": "1728:0:0" }, "scope": 171, "src": "1624:644:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 172, "src": "322:1948:0" } ], "src": "39:2232:0" }, "compiler": { "name": "solc", "version": "0.6.10+commit.00c0fcaf.Emscripten.clang" }, "networks": { "1602784384763": { "events": { "0x4ec90e965519d92681267467f775ada5bd214aa92c0dc93d90a5e880ce9ed026": { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint256", "name": "index", "type": "uint256" }, { "indexed": false, "internalType": "address", "name": "account", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "Claimed", "type": "event" } }, "links": {}, "address": "0x953789fa8f967319F73B52b2492f2fd185dd7719", "transactionHash": "0x5a1bf8010038ccb9a83a978d79b8a22f7bae9063b446aa0c830378ad4fdfdc49" } }, "schemaVersion": "3.1.0", "updatedAt": "2020-10-15T18:11:25.487Z", "networkType": "ethereum", "devdoc": { "methods": {} }, "userdoc": { "methods": { "claim(uint256,address,uint256,bytes32[])": { "notice": "No caller permissioning needed since token is transfered to account argument, and there is no incentive to call function for another account. Can only submit claim for full claimable amount, otherwise proof verification will fail." } }, "notice": "Replicated from (No changes made): https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol" } }