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Key Facts
Heuristic Analysis
The following characteristics were detected through bytecode analysis and may not be accurate.
Frontier Era
The initial release of Ethereum. A bare-bones implementation for technical users.
Bytecode Overview
Verified Source Available
This contract has verified source code on Etherscan.
Show source code (Solidity)
{
"language": "Solidity",
"sources": {
"CongressGist.sol": {
"content": "contract owned {\n address public administrator;\n\n function owned() {\n administrator = msg.sender;\n }\n\n modifier onlyAdmin {\n if (msg.sender != administrator) throw;\n _\n }\n\n function transferOwnership(address newAdministrator) onlyAdmin {\n administrator = newAdministrator;\n }\n}\n\ncontract Congress is owned {\n\n /* Contract Variables and events */\n uint public minimumQuorum;\n uint public debatingPeriodInMinutes;\n int public majorityMargin;\n Proposal[] public proposals;\n uint public numProposals;\n mapping (address => uint) public memberId;\n Member[] public members;\n\n event ProposalAdded(uint proposalID, address recipient, uint amount, string description);\n event Voted(uint proposalID, bool position, address voter, string justification);\n event ProposalTallied(uint proposalID, int result, uint quorum, bool active);\n event MembershipChanged(address member, bool isMember);\n event ChangeOfRules(uint minimumQuorum, uint debatingPeriodInMinutes, int majorityMargin);\n \n struct Proposal {\n address recipient;\n uint amount;\n string description;\n uint votingDeadline;\n bool executed;\n bool proposalPassed;\n uint numberOfVotes;\n int currentResult;\n bytes32 proposalHash;\n Vote[] votes;\n mapping (address => bool) voted;\n }\n \n struct Member {\n address member;\n bool canVote;\n bool canAddProposals;\n string name;\n uint memberSince;\n }\n\n struct Vote {\n bool inSupport;\n address voter;\n string justification;\n }\n\n \n /* First time setup */\n function Congress(uint minimumQuorumForProposals, uint minutesForDebate, int marginOfVotesForMajority, address congressLeader) {\n minimumQuorum = minimumQuorumForProposals;\n debatingPeriodInMinutes = minutesForDebate;\n majorityMargin = marginOfVotesForMajority;\n members.length++;\n members[0] = Member({member: 0, canVote: false, canAddProposals: false, memberSince: now, name: ''});\n if (congressLeader != 0) administrator = congressLeader;\n\n }\n \n /*make member*/\n function changeMembership(address targetMember, bool canVote, bool canAddProposals, string memberName) onlyAdmin {\n uint id;\n if (memberId[targetMember] == 0) {\n memberId[targetMember] = members.length;\n id = members.length++;\n members[id] = Member({member: targetMember, canVote: canVote, canAddProposals: canAddProposals, memberSince: now, name: memberName});\n } else {\n id = memberId[targetMember];\n Member m = members[id];\n m.canVote = canVote;\n }\n \n MembershipChanged(targetMember, canVote);\n }\n \n /*change rules*/\n function changeVotingRules(uint minimumQuorumForProposals, uint minutesForDebate, int marginOfVotesForMajority) onlyAdmin {\n minimumQuorum = minimumQuorumForProposals;\n debatingPeriodInMinutes = minutesForDebate;\n majorityMargin = marginOfVotesForMajority;\n ChangeOfRules(minimumQuorum, debatingPeriodInMinutes, majorityMargin);\n }\n\n /* Function to create a new proposal */\n function newProposal(address beneficiary, uint etherAmount, string JobDescription, bytes transactionBytecode) returns (uint proposalID) {\n if (memberId[msg.sender] == 0 || !members[memberId[msg.sender]].canAddProposals) throw;\n\n proposalID = proposals.length++;\n Proposal p = proposals[proposalID];\n p.recipient = beneficiary;\n p.amount = etherAmount;\n p.description = JobDescription;\n p.proposalHash = sha3(beneficiary, etherAmount, transactionBytecode);\n p.votingDeadline = now + debatingPeriodInMinutes * 1 minutes;\n p.executed = false;\n p.proposalPassed = false;\n p.numberOfVotes = 0;\n ProposalAdded(proposalID, beneficiary, etherAmount, JobDescription);\n numProposals = proposalID+1;\n }\n \n /* function to check if a proposal code matches */\n function checkProposalCode(uint proposalNumber, address beneficiary, uint etherAmount, bytes transactionBytecode) constant returns (bool codeChecksOut) {\n Proposal p = proposals[proposalNumber];\n return p.proposalHash == sha3(beneficiary, etherAmount, transactionBytecode);\n }\n \n function vote(uint proposalNumber, bool supportsProposal, string justificationText) returns (uint voteID){\n if (memberId[msg.sender] == 0 || !members[memberId[msg.sender]].canVote) throw;\n \n Proposal p = proposals[proposalNumber];\n if (p.voted[msg.sender] == true) throw;\n p.voted[msg.sender] = true;\n p.numberOfVotes++;\n if (supportsProposal) {\n p.currentResult++;\n } else {\n p.currentResult--;\n }\n Voted(proposalNumber, supportsProposal, msg.sender, justificationText);\n }\n\n function executeProposal(uint proposalNumber, bytes transactionBytecode) returns (int result) {\n Proposal p = proposals[proposalNumber];\n if (now < p.votingDeadline\n || p.executed\n || p.proposalHash != sha3(p.recipient, p.amount, transactionBytecode)\n || p.numberOfVotes < minimumQuorum)\n throw;\n \n if (p.currentResult > majorityMargin) {\n p.recipient.call.value(p.amount * 1 ether)(transactionBytecode);\n p.executed = true;\n p.proposalPassed = true;\n } else {\n p.executed = true;\n p.proposalPassed = false;\n }\n ProposalTallied(proposalNumber, p.currentResult, p.numberOfVotes, p.proposalPassed);\n }\n}\n"
}
},
"settings": {
"optimizer": {
"runs": 200,
"enabled": true
},
"compilationTarget": {
"CongressGist.sol": "Congress"
}
}
}External Links
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