{ "contractName": "Minter", "abi": [ { "constant": true, "inputs": [], "name": "initialized", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "epochStart", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "fathomToken", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "reward", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "waitingPeriod", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "closestDistance", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "epochLength", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "conceptRegistry", "outputs": [ { "name": "", "type": "address" } ], "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": "winner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "epochHash", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "", "type": "address" } ], "name": "coinbase", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "_conceptRegistry", "type": "address" }, { "name": "_epochLength", "type": "uint256" }, { "name": "_waitingPeriod", "type": "uint256" }, { "name": "_reward", "type": "uint256" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "oldOwner", "type": "address" }, { "indexed": false, "name": "newOwner", "type": "address" } ], "name": "NewOwner", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "oldReward", "type": "uint256" }, { "indexed": false, "name": "newReward", "type": "uint256" } ], "name": "NewReward", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "oldLength", "type": "uint256" }, { "indexed": false, "name": "newLength", "type": "uint256" } ], "name": "NewEpochLength", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "recipient", "type": "address" }, { "indexed": false, "name": "amount", "type": "uint256" } ], "name": "TokensMinted", "type": "event" }, { "constant": false, "inputs": [ { "name": "_fathomToken", "type": "address" } ], "name": "init", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_assessor", "type": "address" }, { "name": "_assessment", "type": "address" }, { "name": "_tokenSalt", "type": "uint256" } ], "name": "submitTicket", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "_assessor", "type": "address" }, { "name": "_assessment", "type": "address" }, { "name": "_tokenSalt", "type": "uint256" }, { "name": "_assessmentSalt", "type": "bytes32" } ], "name": "getTicketDistance", "outputs": [ { "name": "distance", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], "name": "endEpoch", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_user", "type": "address" } ], "name": "setCoinbase", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_owner", "type": "address" } ], "name": "setOwner", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_reward", "type": "uint256" } ], "name": "setReward", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_length", "type": "uint256" } ], "name": "setEpochLength", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_waitingPeriod", "type": "uint256" } ], "name": "setWaitingPeriod", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.0+commit.1d4f565a\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":false,\"inputs\":[],\"name\":\"endEpoch\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"initialized\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"epochStart\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"fathomToken\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_fathomToken\",\"type\":\"address\"}],\"name\":\"init\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_user\",\"type\":\"address\"}],\"name\":\"setCoinbase\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"reward\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_reward\",\"type\":\"uint256\"}],\"name\":\"setReward\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"waitingPeriod\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"closestDistance\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_length\",\"type\":\"uint256\"}],\"name\":\"setEpochLength\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"epochLength\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_waitingPeriod\",\"type\":\"uint256\"}],\"name\":\"setWaitingPeriod\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"conceptRegistry\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"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\":\"_assessor\",\"type\":\"address\"},{\"name\":\"_assessment\",\"type\":\"address\"},{\"name\":\"_tokenSalt\",\"type\":\"uint256\"},{\"name\":\"_assessmentSalt\",\"type\":\"bytes32\"}],\"name\":\"getTicketDistance\",\"outputs\":[{\"name\":\"distance\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"winner\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"epochHash\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_assessor\",\"type\":\"address\"},{\"name\":\"_assessment\",\"type\":\"address\"},{\"name\":\"_tokenSalt\",\"type\":\"uint256\"}],\"name\":\"submitTicket\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"coinbase\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"name\":\"_conceptRegistry\",\"type\":\"address\"},{\"name\":\"_epochLength\",\"type\":\"uint256\"},{\"name\":\"_waitingPeriod\",\"type\":\"uint256\"},{\"name\":\"_reward\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"oldOwner\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"NewOwner\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"oldReward\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"newReward\",\"type\":\"uint256\"}],\"name\":\"NewReward\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"oldLength\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"newLength\",\"type\":\"uint256\"}],\"name\":\"NewEpochLength\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokensMinted\",\"type\":\"event\"}],\"devdoc\":{\"methods\":{\"getTicketDistance(address,address,uint256,bytes32)\":{\"params\":{\"_assessmentSalt\":\"Taken from assessment, generated by XOR-ing the salts of all revealing assessors\",\"_tokenSalt\":\"A number smaller than the amount of tokens staked by the assessor\"},\"return\":\"the distance to the target hash of a given ticket\"},\"init(address)\":{\"details\":\"will be called during network deployment\"}}},\"userdoc\":{\"methods\":{\"endEpoch()\":{\"notice\":\"Called by anyone to end the current epoch, start the next one and trigger a payout to the winner\"},\"setCoinbase(address)\":{\"notice\":\"Called by participants to redirect their rewards\"}},\"notice\":\"Contract to manage the minting of new network tokens. New Tokens are minted once per a user-defined timeperiod (epoch) and are distributed in a lottery. Tickets can be submitted for assessors who have completed assessments as part of the majority, in the current epoch.\"}},\"settings\":{\"compilationTarget\":{\"/builds/fathom/assess/contracts/contracts/Minter.sol\":\"Minter\"},\"evmVersion\":\"byzantium\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/builds/fathom/assess/contracts/contracts/Assessment.sol\":{\"keccak256\":\"0x38e344165281f6b705d538b5b1e36c9f2000896abb0e66a0e365009dfcb154ba\",\"urls\":[\"bzzr://6de365b6fcd48d7ecb26877ce7446f74c7116a66c79f97bad235c17324787cdf\"]},\"/builds/fathom/assess/contracts/contracts/AssessmentData.sol\":{\"keccak256\":\"0xda71f848916d4c5c519b9bb0cbd80fff3ebdf66d93205bbd47aa746fb7ea3149\",\"urls\":[\"bzzr://3f315e743c548f163c24067c7e11e1f9783123d02ae96390640b65bb6664443d\"]},\"/builds/fathom/assess/contracts/contracts/AssessmentProxy.sol\":{\"keccak256\":\"0x1ad6915fbc6c7ab4d0c5a3c9fddd262ff1899b80f812ef5ef1d774dfe26dfde2\",\"urls\":[\"bzzr://803ff846e154c773e8e8f0cd69cf7142b1b7d500553f6d1c253efde0d4c51297\"]},\"/builds/fathom/assess/contracts/contracts/Concept.sol\":{\"keccak256\":\"0x89c39768cf2aa6cd14f08b619c9981fbe6140d8ed926003fa72e9a07feb81533\",\"urls\":[\"bzzr://49884001aa3460e710b5d8704b055e282703516ae945469b161edea7a091415c\"]},\"/builds/fathom/assess/contracts/contracts/ConceptData.sol\":{\"keccak256\":\"0xba5f44d67c4d25679f7ce9ae139145bca84f85ea53405ae258d1f6c79f68aef9\",\"urls\":[\"bzzr://614dbf61f171bddf5d29eb27396e012d8dae15d22314652df38a92d1b5a43f5a\"]},\"/builds/fathom/assess/contracts/contracts/ConceptProxy.sol\":{\"keccak256\":\"0xed6cf5d2434e41b7c5feef082320abfc4725347802465516760b6e082bba2fb1\",\"urls\":[\"bzzr://5e9c8a3f8da6ec7ba5eac85b39942d590b69863029310ca8dbecfed477b57cc7\"]},\"/builds/fathom/assess/contracts/contracts/ConceptRegistry.sol\":{\"keccak256\":\"0x37b9ea893f2e3714ed9e386871f16aff98621f6aac2c99214cddf1ddb286462c\",\"urls\":[\"bzzr://fe2531b7de74f5795710a510315edd555d208c8e18c7efbb5c28256aa47386f4\"]},\"/builds/fathom/assess/contracts/contracts/FathomToken.sol\":{\"keccak256\":\"0xd70c8cc96ac35367bebb4ecca938968b4b585ce5ac344540b538b4e08480a4c4\",\"urls\":[\"bzzr://be7d78ab6ae00ed2e18e7df4344cb062c79566e4b94a90502fd567e97b3af9d3\"]},\"/builds/fathom/assess/contracts/contracts/Math.sol\":{\"keccak256\":\"0x0e89dc6b2d825d93107a5c9b32312b94e18cb8e693aa8e0332a8f17d118ba207\",\"urls\":[\"bzzr://2dc75be49f09ed441c84240522225c9ceccc7577d3fad4bb5d39b0666947227c\"]},\"/builds/fathom/assess/contracts/contracts/Minter.sol\":{\"keccak256\":\"0x5c6a9bbd37b0f935ee951bf87fb8f4494555e3e98c99049c51234b383dbcf3a0\",\"urls\":[\"bzzr://a4ef613b4eb19182a63b3375aaedc1a455ce290dc23406c998742f1467a6ce1f\"]},\"/builds/fathom/assess/contracts/contracts/Proxy.sol\":{\"keccak256\":\"0xca112dd4cad6b82624ac9899cbb869884c78cf0a1b08a3efc0767d93f06a1d7c\",\"urls\":[\"bzzr://b4087ee1320cc97a872fb849fd9c7f0b1c2faf43c6b681ddcd77ad705060fcd6\"]},\"/builds/fathom/assess/contracts/contracts/ProxyFactory.sol\":{\"keccak256\":\"0x19e6c1094d0556a918710647e757f878a02750ae61d182aeae8168e864f39725\",\"urls\":[\"bzzr://ec7eeaee9c749149f541e4f61421acb4bd969344a586508a3eee9da67492df06\"]},\"/builds/fathom/assess/contracts/contracts/lib/openzeppelin-solidity/contracts/math/SafeMath.sol\":{\"keccak256\":\"0x1aad84a4229d5da4b9ffb4433c58b2a91ba9ffbd7b11af0500f9a9795869d865\",\"urls\":[\"bzzr://b8e6b572cd2f7e04b58bf072ec24bbef7914c947e232a390cb8f07ffb1bc8157\"]},\"/builds/fathom/assess/contracts/contracts/lib/openzeppelin-solidity/contracts/token/ERC20/BasicToken.sol\":{\"keccak256\":\"0xc6f4c1d0822f8a8a78e0cb49fdb716acf26a7356109c4dcc6d5836b873e50b2d\",\"urls\":[\"bzzr://7f6656657ed55a5f0836a10b3e8517eddd25c0b9989c78b80a29075c304b20bd\"]},\"/builds/fathom/assess/contracts/contracts/lib/openzeppelin-solidity/contracts/token/ERC20/ERC20.sol\":{\"keccak256\":\"0xe0490847690823c25e2e258c1f4689b54e6d051f784aca8ef2da8c0789f2be8a\",\"urls\":[\"bzzr://d324bd158255fbdb33d2294fd179a3b0456b72d31c2ba3212b428acfc18dcf88\"]},\"/builds/fathom/assess/contracts/contracts/lib/openzeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol\":{\"keccak256\":\"0x225613675e94acc479c38897f053e94f287a57730bb8a56ccae598074dd4469b\",\"urls\":[\"bzzr://80293b34ebc97ac3a32572451170e70d31c93f896cbd85d249b13362978ea11f\"]},\"/builds/fathom/assess/contracts/contracts/lib/openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol\":{\"keccak256\":\"0x275f9b31e4ad7f868d8bd4a8e85e2bb68d1bed3b28e919e95df08310ff4de93d\",\"urls\":[\"bzzr://4eb59cdd2161bd6e9a02c3f0e735e285723f14963cae565c3543c38ccc3bb47d\"]}},\"version\":1}", 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"source": "pragma solidity ^0.5.0;\n\nimport \"./ConceptRegistry.sol\";\nimport \"./Assessment.sol\";\nimport \"./FathomToken.sol\";\n\n// NOTE\n// For a detailed explanation of the minting mechanism, see\n// https://fathom.network/blog/archive/distributing-tokens/\n\n/**\n @notice Contract to manage the minting of new network tokens. New Tokens are\n minted once per a user-defined timeperiod (epoch) and are distributed in a\n lottery. Tickets can be submitted for assessors who have completed\n assessments as part of the majority, in the current epoch.\n */\ncontract Minter {\n address public owner;\n\n bool public initialized;\n\n // amount of new tokens generated each epoch\n uint public reward;\n\n uint public epochStart;\n\n // target hash for tickets to compare against\n uint public epochHash;\n\n uint public epochLength;\n uint public waitingPeriod;\n\n FathomToken public fathomToken;\n\n ConceptRegistry public conceptRegistry;\n\n address public winner;\n\n // current best ticket distance\n uint public closestDistance = 2**256 - 1;\n\n // participant => address that should receive winnings\n mapping (address => address) public coinbase;\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"Owner access only\");\n _;\n }\n\n event NewOwner(address oldOwner, address newOwner);\n event NewReward(uint oldReward, uint newReward);\n event NewEpochLength(uint oldLength, uint newLength);\n event TokensMinted(address recipient, uint amount);\n\n constructor(address _conceptRegistry, uint _epochLength, uint _waitingPeriod, uint _reward) public {\n conceptRegistry = ConceptRegistry(_conceptRegistry);\n epochLength = _epochLength;\n epochStart = now;\n require(2 * _waitingPeriod < _epochLength, 'waiting period must be at most half of epoch');\n waitingPeriod = _waitingPeriod;\n epochHash = uint(blockhash(block.number - 1));\n reward = _reward;\n owner = msg.sender;\n }\n\n /// @dev will be called during network deployment\n function init(address _fathomToken) public {\n if (!initialized) {\n fathomToken = FathomToken(_fathomToken);\n initialized = true;\n }\n }\n\n /*\n @notice Called to submit tickets for assessors who have completed an assessment as part of the majority in the\n current epoch\n @param _tokenSalt A number smaller or equal to the amount of tokens the assessor staked in the assessment\n\n */\n function submitTicket (address _assessor, address _assessment, uint _tokenSalt) public {\n Assessment assessment = Assessment(_assessment);\n\n require(conceptRegistry.conceptExists(address(assessment.concept())), 'Assessed concept does not exist');\n require(Concept(assessment.concept()).assessmentExists(_assessment), 'Assessment does not exist');\n require(assessment.endTime() < epochStart + epochLength, 'Assessment must end before end of epoch');\n require(assessment.endTime() > epochStart, 'Assessment must be from current epoch');\n require(uint(assessment.assessmentStage()) == 4, 'Assessment must be completed'); // 4 -> Stage.Done\n require(uint(assessment.assessorStage(_assessor)) == 4, 'Assessor is not part of majority cluster');\n require(_tokenSalt <= assessment.cost(), 'salt must be <= stake');\n\n uint distance = getTicketDistance(_assessor, _assessment, _tokenSalt, assessment.salt());\n if (distance < closestDistance) {\n closestDistance = distance;\n winner = _assessor;\n }\n }\n\n /// @param _tokenSalt A number smaller than the amount of tokens staked by the assessor\n /// @param _assessmentSalt Taken from assessment, generated by XOR-ing the salts of all revealing assessors\n /// @return the distance to the target hash of a given ticket\n function getTicketDistance(\n address _assessor,\n address _assessment,\n uint _tokenSalt,\n bytes32 _assessmentSalt\n )\n public view returns(uint distance)\n {\n uint hash = uint(keccak256(abi.encodePacked(_assessor, _assessment, _tokenSalt, _assessmentSalt)));\n distance = epochHash > hash ? epochHash - hash : hash - epochHash;\n }\n\n /// @notice Called by anyone to end the current epoch, start the next one and trigger a payout to the winner\n function endEpoch() public {\n require(now > (epochStart + epochLength + waitingPeriod), 'Epoch and waiting period must be over');\n if (winner != address(0)) {\n address mintAddress = coinbase[winner] != address(0) ? coinbase[winner] : winner;\n if (fathomToken.mint(mintAddress, reward)) {\n emit TokensMinted(winner, reward);\n }\n winner = address(0);\n }\n // increase epochStart until the current moment\n epochStart = epochStart + ((now - epochStart) / epochLength) * epochLength;\n epochHash = uint(blockhash(block.number - 1));\n closestDistance = 2**256-1;\n }\n\n // ********************************************\n // SETTER FUNCTIONS\n // ********************************************\n /// @notice Called by participants to redirect their rewards\n function setCoinbase(address _user) public {\n coinbase[msg.sender] = _user;\n }\n\n function setOwner(address _owner) public onlyOwner() {\n owner = _owner;\n }\n\n function setReward(uint _reward) public onlyOwner() {\n reward = _reward;\n }\n\n function setEpochLength (uint _length) public onlyOwner() {\n epochLength = _length;\n }\n\n function setWaitingPeriod (uint _waitingPeriod) public onlyOwner() {\n require(2 * _waitingPeriod < epochLength, 'Waiting period must be at most half of epoch');\n waitingPeriod = _waitingPeriod;\n }\n}\n", "sourcePath": "/builds/fathom/assess/contracts/contracts/Minter.sol", "ast": { "absolutePath": "/builds/fathom/assess/contracts/contracts/Minter.sol", "exportedSymbols": { "Minter": [ 3809 ] }, "id": 3810, "nodeType": "SourceUnit", "nodes": [ { "id": 3343, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:11" }, { "absolutePath": "/builds/fathom/assess/contracts/contracts/ConceptRegistry.sol", "file": "./ConceptRegistry.sol", "id": 3344, "nodeType": "ImportDirective", "scope": 3810, "sourceUnit": 2683, "src": "25:31:11", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/builds/fathom/assess/contracts/contracts/Assessment.sol", "file": "./Assessment.sol", "id": 3345, "nodeType": "ImportDirective", "scope": 3810, "sourceUnit": 1296, "src": "57:26:11", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/builds/fathom/assess/contracts/contracts/FathomToken.sol", "file": "./FathomToken.sol", "id": 3346, "nodeType": "ImportDirective", "scope": 3810, "sourceUnit": 3063, "src": "84:27:11", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@notice Contract to manage the minting of new network tokens. New Tokens are\nminted once per a user-defined timeperiod (epoch) and are distributed in a\nlottery. Tickets can be submitted for assessors who have completed\nassessments as part of the majority, in the current epoch.", "fullyImplemented": true, "id": 3809, "linearizedBaseContracts": [ 3809 ], "name": "Minter", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 3348, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3809, "src": "562:20:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3347, "name": "address", "nodeType": "ElementaryTypeName", "src": "562:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3350, "name": "initialized", "nodeType": "VariableDeclaration", "scope": 3809, "src": "589:23:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3349, "name": "bool", "nodeType": "ElementaryTypeName", "src": "589:4:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3352, "name": "reward", "nodeType": "VariableDeclaration", "scope": 3809, "src": "668:18:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3351, "name": "uint", "nodeType": "ElementaryTypeName", "src": "668:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3354, "name": "epochStart", "nodeType": "VariableDeclaration", "scope": 3809, "src": "693:22:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3353, "name": 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"typeString": "function (address,address,uint256,bytes32) view returns (uint256)" } }, "id": 3592, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3361:72:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3345:88:11" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3596, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3594, "name": "distance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3584, "src": "3447:8:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "id": 3595, 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3623, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4056:4:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint" }, "id": 3633, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4056:86:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4044:98:11" }, { "expression": { "argumentTypes": null, "id": 3646, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3635, "name": "distance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3619, "src": "4152:8:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3638, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3636, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4163:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "id": 3637, "name": "hash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3622, "src": "4175:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4163:16:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3644, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3642, "name": "hash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3622, "src": "4201:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 3643, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4208:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4201:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3645, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "Conditional", "src": "4163:54:11", "trueExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3641, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3639, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4182:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 3640, "name": "hash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3622, "src": "4194:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4182:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4152:65:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3647, "nodeType": "ExpressionStatement", "src": "4152:65:11" } ] }, "documentation": "@param _tokenSalt A number smaller than the amount of tokens staked by the assessor\n @param _assessmentSalt Taken from assessment, generated by XOR-ing the salts of all revealing assessors\n @return the distance to the target hash of a given ticket", "id": 3649, "implemented": true, "kind": "function", "modifiers": [], "name": "getTicketDistance", "nodeType": "FunctionDefinition", "parameters": { "id": 3617, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3610, "name": "_assessor", "nodeType": "VariableDeclaration", "scope": 3649, "src": "3876:17:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3609, "name": "address", "nodeType": "ElementaryTypeName", "src": "3876:7:11", 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"hexValue": "45706f636820616e642077616974696e6720706572696f64206d757374206265206f766572", "id": 3661, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4438:39:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_eaf171613008b963b14617fb16af9174b9e422538f0d88f3451a5645a788da92", "typeString": "literal_string \"Epoch and waiting period must be over\"" }, "value": "Epoch and waiting period must be over" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_eaf171613008b963b14617fb16af9174b9e422538f0d88f3451a5645a788da92", "typeString": "literal_string \"Epoch and waiting period must be over\"" } ], "id": 3652, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5970, 5971 ], "referencedDeclaration": 5971, "src": "4380:7:11", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 3662, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4380:98:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3663, "nodeType": "ExpressionStatement", "src": "4380:98:11" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3668, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3664, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4492:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3666, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4510:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3665, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4502:7:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3667, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4502:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4492:20:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3703, "nodeType": "IfStatement", "src": "4488:286:11", "trueBody": { "id": 3702, "nodeType": "Block", "src": "4514:260:11", "statements": [ { "assignments": [ 3670 ], "declarations": [ { "constant": false, "id": 3670, "name": "mintAddress", "nodeType": "VariableDeclaration", "scope": 3702, "src": "4528:19:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3669, "name": "address", "nodeType": "ElementaryTypeName", "src": "4528:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 3683, "initialValue": { "argumentTypes": null, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3677, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3671, "name": "coinbase", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "4550:8:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_address_$", "typeString": "mapping(address => address)" } }, "id": 3673, "indexExpression": { "argumentTypes": null, "id": 3672, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4559:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4550:16:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3675, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4578:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3674, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4570:7:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3676, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4570:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4550:30:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseExpression": { "argumentTypes": null, "id": 3681, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4602:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 3682, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "Conditional", "src": "4550:58:11", "trueExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3678, "name": "coinbase", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "4583:8:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_address_$", "typeString": "mapping(address => address)" } }, "id": 3680, "indexExpression": { "argumentTypes": null, "id": 3679, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4592:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4583:16:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "4528:80:11" }, { "condition": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3686, "name": "mintAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3670, "src": "4643:11:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3687, "name": "reward", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3352, "src": "4656:6:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3684, "name": "fathomToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3362, "src": "4626:11:11", "typeDescriptions": { "typeIdentifier": "t_contract$_FathomToken_$3062", "typeString": "contract FathomToken" } }, "id": 3685, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mint", "nodeType": "MemberAccess", "referencedDeclaration": 2979, "src": "4626:16:11", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 3688, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4626:37:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3695, "nodeType": "IfStatement", "src": "4622:109:11", "trueBody": { "id": 3694, "nodeType": "Block", "src": "4665:66:11", "statements": [ { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3690, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4701:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3691, "name": "reward", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3352, "src": "4709:6:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3689, "name": "TokensMinted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3413, "src": "4688:12:11", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3692, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4688:28:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3693, "nodeType": "EmitStatement", "src": "4683:33:11" } ] } }, { "expression": { "argumentTypes": null, "id": 3700, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3696, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4744:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3698, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4761:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3697, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4753:7:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3699, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4753:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4744:19:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 3701, "nodeType": "ExpressionStatement", "src": "4744:19:11" } ] } }, { "expression": { "argumentTypes": null, "id": 3716, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3704, "name": "epochStart", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3354, "src": "4839:10:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3715, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3705, "name": "epochStart", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3354, "src": "4852:10:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3714, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3711, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3708, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3706, "name": "now", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5969, "src": "4867:3:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 3707, "name": "epochStart", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3354, "src": "4873:10:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4867:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 3709, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "4866:18:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "/", "rightExpression": { "argumentTypes": null, "id": 3710, "name": "epochLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3358, "src": "4887:11:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4866:32:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 3712, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "4865:34:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "id": 3713, "name": "epochLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3358, "src": "4902:11:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4865:48:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4852:61:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4839:74:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3717, "nodeType": "ExpressionStatement", "src": "4839:74:11" }, { "expression": { "argumentTypes": null, "id": 3727, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3718, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4923:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3724, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3721, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5957, "src": "4950:5:11", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 3722, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "number", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4950:12:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 3723, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4965:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "4950:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3720, "name": "blockhash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5958, "src": "4940:9:11", "typeDescriptions": { "typeIdentifier": "t_function_blockhash_view$_t_uint256_$returns$_t_bytes32_$", "typeString": "function (uint256) view returns (bytes32)" } }, "id": 3725, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4940:27:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 3719, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4935:4:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint" }, "id": 3726, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4935:33:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4923:45:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3728, "nodeType": "ExpressionStatement", "src": "4923:45:11" }, { "expression": { "argumentTypes": null, "id": 3735, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3729, "name": "closestDistance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3373, "src": "4978:15:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639935_by_1", "typeString": "int_const 1157...(70 digits omitted)...9935" }, "id": 3734, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639936_by_1", "typeString": "int_const 1157...(70 digits omitted)...9936" }, "id": 3732, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "32", "id": 3730, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4996:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "323536", "id": 3731, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4999:3:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "src": "4996:6:11", "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639936_by_1", "typeString": "int_const 1157...(70 digits omitted)...9936" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 3733, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5003:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "4996:8:11", "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639935_by_1", "typeString": "int_const 1157...(70 digits omitted)...9935" } }, "src": "4978:26:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3736, "nodeType": "ExpressionStatement", "src": "4978:26:11" } ] }, "documentation": "@notice Called by anyone to end the current epoch, start the next one and trigger a payout to the winner", "id": 3738, "implemented": true, "kind": "function", "modifiers": [], "name": "endEpoch", "nodeType": "FunctionDefinition", "parameters": { "id": 3650, "nodeType": "ParameterList", "parameters": [], "src": "4360:2:11" }, "returnParameters": { "id": 3651, "nodeType": "ParameterList", "parameters": [], "src": "4370:0:11" }, "scope": 3809, "src": "4343:668:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3750, "nodeType": "Block", "src": "5253:45:11", "statements": [ { "expression": { "argumentTypes": null, "id": 3748, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3743, "name": "coinbase", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "5263:8:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_address_$", "typeString": "mapping(address => address)" } }, "id": 3746, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3744, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5967, "src": "5272:3:11", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3745, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5272:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5263:20:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3747, "name": "_user", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3740, "src": "5286:5:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "5263:28:11", 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New Tokens are\nminted once per a user-defined timeperiod (epoch) and are distributed in a\nlottery. 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3623, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4056:4:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint" }, "id": 3633, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4056:86:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4044:98:11" }, { "expression": { "argumentTypes": null, "id": 3646, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3635, "name": "distance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3619, "src": "4152:8:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3638, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3636, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4163:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "id": 3637, "name": "hash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3622, "src": "4175:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4163:16:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3644, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3642, "name": "hash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3622, "src": "4201:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 3643, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4208:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4201:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3645, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "Conditional", "src": "4163:54:11", "trueExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3641, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3639, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4182:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 3640, "name": "hash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3622, "src": "4194:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4182:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4152:65:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3647, "nodeType": "ExpressionStatement", "src": "4152:65:11" } ] }, "documentation": "@param _tokenSalt A number smaller than the amount of tokens staked by the assessor\n @param _assessmentSalt Taken from assessment, generated by XOR-ing the salts of all revealing assessors\n @return the distance to the target hash of a given ticket", "id": 3649, "implemented": true, "kind": "function", "modifiers": [], "name": "getTicketDistance", "nodeType": "FunctionDefinition", "parameters": { "id": 3617, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3610, "name": "_assessor", "nodeType": "VariableDeclaration", "scope": 3649, "src": "3876:17:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3609, "name": "address", "nodeType": "ElementaryTypeName", "src": "3876:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3612, "name": "_assessment", "nodeType": "VariableDeclaration", "scope": 3649, "src": "3903:19:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3611, "name": "address", "nodeType": "ElementaryTypeName", "src": "3903:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3614, "name": "_tokenSalt", "nodeType": "VariableDeclaration", "scope": 3649, "src": "3932:15:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3613, "name": "uint", "nodeType": 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"hexValue": "45706f636820616e642077616974696e6720706572696f64206d757374206265206f766572", "id": 3661, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4438:39:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_eaf171613008b963b14617fb16af9174b9e422538f0d88f3451a5645a788da92", "typeString": "literal_string \"Epoch and waiting period must be over\"" }, "value": "Epoch and waiting period must be over" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_eaf171613008b963b14617fb16af9174b9e422538f0d88f3451a5645a788da92", "typeString": "literal_string \"Epoch and waiting period must be over\"" } ], "id": 3652, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5970, 5971 ], "referencedDeclaration": 5971, "src": "4380:7:11", "typeDescriptions": { "typeIdentifier": 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"typeIdentifier": "t_address", "typeString": "address" }, "id": 3677, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3671, "name": "coinbase", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "4550:8:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_address_$", "typeString": "mapping(address => address)" } }, "id": 3673, "indexExpression": { "argumentTypes": null, "id": 3672, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4559:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4550:16:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, 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"4570:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4550:30:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseExpression": { "argumentTypes": null, "id": 3681, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4602:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 3682, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "Conditional", "src": "4550:58:11", "trueExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3678, "name": "coinbase", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "4583:8:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_address_$", "typeString": "mapping(address => address)" } }, "id": 3680, "indexExpression": { "argumentTypes": null, "id": 3679, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4592:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4583:16:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "4528:80:11" }, { "condition": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3686, "name": "mintAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3670, "src": "4643:11:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3687, "name": "reward", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3352, "src": "4656:6:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3684, "name": "fathomToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3362, "src": "4626:11:11", "typeDescriptions": { "typeIdentifier": "t_contract$_FathomToken_$3062", "typeString": "contract FathomToken" } }, "id": 3685, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mint", "nodeType": "MemberAccess", "referencedDeclaration": 2979, "src": "4626:16:11", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 3688, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4626:37:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3695, "nodeType": "IfStatement", "src": "4622:109:11", "trueBody": { "id": 3694, "nodeType": "Block", "src": "4665:66:11", "statements": [ { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3690, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4701:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3691, "name": "reward", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3352, "src": "4709:6:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3689, "name": "TokensMinted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3413, "src": "4688:12:11", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3692, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4688:28:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3693, "nodeType": "EmitStatement", "src": "4683:33:11" } ] } }, { "expression": { "argumentTypes": null, "id": 3700, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3696, "name": "winner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3366, "src": "4744:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3698, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4761:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3697, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4753:7:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3699, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4753:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4744:19:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 3701, "nodeType": "ExpressionStatement", "src": "4744:19:11" } ] } }, { "expression": { "argumentTypes": null, "id": 3716, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3704, "name": "epochStart", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3354, "src": "4839:10:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3715, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3705, "name": "epochStart", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3354, "src": "4852:10:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3714, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3711, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3708, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3706, "name": "now", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5969, "src": "4867:3:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 3707, "name": "epochStart", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3354, "src": "4873:10:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4867:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 3709, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "4866:18:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "/", "rightExpression": { "argumentTypes": null, "id": 3710, "name": "epochLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3358, "src": "4887:11:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4866:32:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 3712, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "4865:34:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "id": 3713, "name": "epochLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3358, "src": "4902:11:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4865:48:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4852:61:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4839:74:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3717, "nodeType": "ExpressionStatement", "src": "4839:74:11" }, { "expression": { "argumentTypes": null, "id": 3727, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3718, "name": "epochHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "4923:9:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3724, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3721, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5957, "src": "4950:5:11", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 3722, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "number", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4950:12:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 3723, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4965:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "4950:16:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3720, "name": "blockhash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5958, "src": "4940:9:11", "typeDescriptions": { "typeIdentifier": "t_function_blockhash_view$_t_uint256_$returns$_t_bytes32_$", "typeString": "function (uint256) view returns (bytes32)" } }, "id": 3725, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4940:27:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 3719, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4935:4:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint" }, "id": 3726, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4935:33:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4923:45:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3728, "nodeType": "ExpressionStatement", "src": "4923:45:11" }, { "expression": { "argumentTypes": null, "id": 3735, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3729, "name": "closestDistance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3373, "src": "4978:15:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639935_by_1", "typeString": "int_const 1157...(70 digits omitted)...9935" }, "id": 3734, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639936_by_1", "typeString": "int_const 1157...(70 digits omitted)...9936" }, "id": 3732, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "32", "id": 3730, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4996:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "323536", "id": 3731, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4999:3:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "src": "4996:6:11", "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639936_by_1", "typeString": "int_const 1157...(70 digits omitted)...9936" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 3733, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5003:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "4996:8:11", "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639935_by_1", "typeString": "int_const 1157...(70 digits omitted)...9935" } }, "src": "4978:26:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3736, "nodeType": "ExpressionStatement", "src": "4978:26:11" } ] }, "documentation": "@notice Called by anyone to end the current epoch, start the next one and trigger a payout to the winner", "id": 3738, "implemented": true, "kind": "function", "modifiers": [], "name": "endEpoch", "nodeType": "FunctionDefinition", "parameters": { "id": 3650, "nodeType": "ParameterList", "parameters": [], "src": "4360:2:11" }, "returnParameters": { "id": 3651, "nodeType": "ParameterList", "parameters": [], "src": "4370:0:11" }, "scope": 3809, "src": "4343:668:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3750, "nodeType": "Block", "src": "5253:45:11", "statements": [ { "expression": { "argumentTypes": null, "id": 3748, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3743, "name": "coinbase", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "5263:8:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_address_$", "typeString": "mapping(address => address)" } }, "id": 3746, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3744, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5967, "src": "5272:3:11", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3745, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5272:10:11", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5263:20:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3747, "name": "_user", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3740, "src": "5286:5:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "5263:28:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 3749, "nodeType": "ExpressionStatement", "src": "5263:28:11" } ] }, "documentation": "@notice Called by participants to redirect their rewards", "id": 3751, "implemented": true, "kind": "function", "modifiers": [], "name": "setCoinbase", "nodeType": "FunctionDefinition", "parameters": { "id": 3741, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3740, "name": "_user", "nodeType": "VariableDeclaration", "scope": 3751, "src": "5231:13:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3739, "name": "address", "nodeType": "ElementaryTypeName", "src": "5231:7:11", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "5230:15:11" }, "returnParameters": { "id": 3742, "nodeType": "ParameterList", "parameters": [], "src": "5253:0:11" }, "scope": 3809, "src": "5210:88:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3762, "nodeType": "Block", "src": "5357:31:11", "statements": [ { "expression": { "argumentTypes": null, "id": 3760, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3758, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3348, "src": "5367:5:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3759, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3753, "src": "5375:6:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "5367:14:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 3761, "nodeType": "ExpressionStatement", "src": "5367:14:11" } ] }, "documentation": null, "id": 3763, "implemented": true, "kind": "function", "modifiers": [ { "arguments": [], "id": 3756, "modifierName": { "argumentTypes": null, "id": 3755, "name": "onlyOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3389, "src": "5345:9:11", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "5345:11:11" } ], "name": "setOwner", "nodeType": "FunctionDefinition", "parameters": { "id": 3754, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3753, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 3763, "src": "5322:14:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, 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"typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3788, "name": "uint", "nodeType": "ElementaryTypeName", "src": "5614:4:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5613:21:11" }, "returnParameters": { "id": 3793, "nodeType": "ParameterList", "parameters": [], "src": "5654:0:11" }, "scope": 3809, "src": "5587:209:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" } ], "scope": 3810, "src": "540:5258:11" } ], "src": "0:5799:11" }, "compiler": { "name": "solc", "version": "0.5.0+commit.1d4f565a.Emscripten.clang" }, "networks": { "42": { "events": {}, "links": {}, "address": "0x50e0e4894B4b2797434490eCde93a20A732000C3", "transactionHash": "0x5bbecc3c450a8f38b19441fb0dd0d54679d29f49d5f8641dd407a81704bb5a0d" } }, "schemaVersion": "3.0.9", "updatedAt": "2019-06-21T15:40:45.218Z", "devdoc": { "methods": { "getTicketDistance(address,address,uint256,bytes32)": { "params": { "_assessmentSalt": "Taken from assessment, generated by XOR-ing the salts of all revealing assessors", "_tokenSalt": "A number smaller than the amount of tokens staked by the assessor" }, "return": "the distance to the target hash of a given ticket" }, "init(address)": { "details": "will be called during network deployment" } } }, "userdoc": { "methods": { "endEpoch()": { "notice": "Called by anyone to end the current epoch, start the next one and trigger a payout to the winner" }, "setCoinbase(address)": { "notice": "Called by participants to redirect their rewards" } }, "notice": "Contract to manage the minting of new network tokens. New Tokens are minted once per a user-defined timeperiod (epoch) and are distributed in a lottery. Tickets can be submitted for assessors who have completed assessments as part of the majority, in the current epoch." } }