Contract 0x1776e1f26f98b1a5df9cd347953a26dd3cb46671

 

Contract Overview

Numeraire Token
Balance:
0.0002 Ether

EtherValue:
$0.43 (@ $2,128.91/ETH)

Token:
Txn Hash Method
Block
From
To
Value
0x4dbea607bb902bd055a7083a601035d52b7a580c65cb4e08f143eba2d026841dTransfer(pending)2021-07-18 15:55:195 days 13 hrs ago0x27453fd8ae316d3b37b433efb152b409ccbd9c28 IN Numeraire Token0 Ether(Pending)(Pending)
0xf6cd5e79e235a343de7b40a488b9e46db83c10f854c13385cff3a21e8eee4bf0Transfer(pending)2021-07-18 11:35:485 days 17 hrs ago0x8d73cfa5fdbf704fbdae00e010b6a31c27f5782c IN Numeraire Token0 Ether(Pending)(Pending)
0x39384f9e74dce90b53a4b2a0bc52fc81d4c52a57cc01f9d07bf22a58c595efc6Approve(pending)2021-07-18 9:27:025 days 19 hrs ago0x3d93397fd816576761990cd5e8bccac9d32e8d2c IN Numeraire Token0 Ether(Pending)(Pending)
0x31d3969ed2cbdb649a0fbaaccad7aa8861575842fb0c1e5da4031afb9e706e2dTransfer(pending)2021-07-18 5:35:255 days 23 hrs ago0x4f754ba890228557a9af32d0b5780b91331cd654 IN Numeraire Token0 Ether(Pending)(Pending)
0x14af3fd6c928fd0b1d8e2c3033280f0ed5e4e1b99fe4aca0684dfbc7e2e6f53bTransfer128867752021-07-24 4:05:481 hr 3 mins agoHitBTC 2 IN  Numeraire Token0 Ether0.00060483216
0xb08ff56d2eb1fdbea6d00f345fba3ac04fcfe098c6ff186350b26673d28f65cdTransfer128865742021-07-24 3:21:561 hr 46 mins agoBinance 14 IN  Numeraire Token0 Ether0.0022695660
0x3e70863e04bcc095a960d83af8db3e4f72398929e01f535397be8eb4745fa124Transfer128865382021-07-24 3:13:131 hr 55 mins ago0x80781497a1c1bc0d2aaa9e30473ced2c692e7f45 IN  Numeraire Token0 Ether0.00041065218
0x354e428de36891e780164bd6c0ae7bfeb6c6ab63534483b527db48e9875eaca8Transfer128865272021-07-24 3:11:141 hr 57 mins agoBinance 15 IN  Numeraire Token0 Ether0.0032948460
0xe9fb29c5f05aeed5b7b5c5ce3e73e3cbc9e747233877a18a1f81f2cd847209daApprove128863942021-07-24 2:44:252 hrs 24 mins ago0xe1b8b1c88aa3165bddc0c6dd3fc5e802df7af59f IN  Numeraire Token0 Ether0.00068549614
0xc7689bd4560eacdd6038689c5ec5c3a8913d19faff075a840a4b113668c2af83Approve128862682021-07-24 2:13:592 hrs 54 mins ago0xe1b8b1c88aa3165bddc0c6dd3fc5e802df7af59f IN  Numeraire Token0 Ether0.00040258515
0x366cc567054059fb84220cd01d04dbb1229b1aeaa725737e856b9b22474af166Approve128862682021-07-24 2:13:592 hrs 54 mins ago0xe1b8b1c88aa3165bddc0c6dd3fc5e802df7af59f IN  Numeraire Token0 Ether0.0006737446413.76
0x3a5043257912b88248f88c3aba5fa9925e12413f8b147df957de7b00326aef71Transfer128861182021-07-24 1:41:323 hrs 27 mins ago0x80781497a1c1bc0d2aaa9e30473ced2c692e7f45 IN  Numeraire Token0 Ether0.00043346619
0x826628021254285ddeba9728c3049993a6eb0525fadcd59315042b4a15774f22Transfer128861162021-07-24 1:40:503 hrs 27 mins ago0xf665bc0b878ab5d23e321758fc997b158c39bd27 IN  Numeraire Token0 Ether0.00087837222
0xaeb2f47677e9e7a619bb18461b2eb98c475a250a48476a2b9e5a992e3c22b93bTransfer128861092021-07-24 1:38:323 hrs 30 mins agoBinance 16 IN  Numeraire Token0 Ether0.0032948460
0x8ad16bcab19a28037e5dc275d58293ec8f2b0a714415e6b9ddd5cfe499ac7f4eTransfer128860712021-07-24 1:30:243 hrs 38 mins agoCoinbase 3 IN  Numeraire Token0 Ether0.00120810822
0x1d702bd0b8f5969b88234e8343919ffaee6cc0f4f6b3c83c495004faf7c18b9cTransfer128860402021-07-24 1:23:303 hrs 45 mins agoCoinbase 3 IN  Numeraire Token0 Ether0.00086972223
0xbc542ae84ed37ca550447cc04d5719c4394efbd068e0ece2b29a88622d1603a7Transfer128859272021-07-24 1:03:254 hrs 5 mins ago0xf05e2a70346560d3228c7002194bb7c5dc8fe100 IN  Numeraire Token0 Ether0.00054753624
0x1a9fb565adef7d3a190f7a0e28b7edd03651635e40edbb1d305be44f92771e3aTransfer128859042021-07-24 0:57:264 hrs 11 mins agoCoinbase 3 IN  Numeraire Token0 Ether0.00159250629
0xc909cf3cbd02b60bc91b3fd1cd73bd79bf14c049319b87a9cdd2da503a22df01Transfer128858472021-07-24 0:46:234 hrs 22 mins ago0xf584f8728b874a6a5c7a8d4d387c9aae9172d621 IN  Numeraire Token0 Ether0.00170196231
0x96ab72988cbb1970ac28ea003a5288ad7a7860067ee0f32eb011126fd84e90eeTransfer128857692021-07-24 0:27:244 hrs 41 mins agoBittrex IN  Numeraire Token0 Ether0.0016477830
0x9eeb375246519eb61072bed8d75d1c51bb75e3f25dbe0e536bf4478d75a9f1baTransfer128850772021-07-23 21:39:327 hrs 29 mins ago0xafadc4302f07e9460eb4c31ec741c0f3e308ff3a IN  Numeraire Token0 Ether00
0x73df94f04e36b5ee909c7affe3424cf454518f73c36339a905c9a3104aa4e033Transfer128850712021-07-23 21:38:337 hrs 30 mins agoBittrex IN  Numeraire Token0 Ether0.0016474230
0xfa714403338653ee37789ef86dbffa4b647aaaf8db7705cbe1963ecd4b26474cTransfer128850322021-07-23 21:29:267 hrs 39 mins ago0xd10089f7565b7960c67a0c0f28fa2734ad3fff22 IN  Numeraire Token0 Ether0.00054724824
0x3b32d99df0d1157b05a48274fc6d578d0a35fe831c187a9ae2b586543b686323Transfer128842702021-07-23 18:37:2910 hrs 31 mins ago0xe8080ac0616fdbf4eed16e3d490d3dab56660fb3 IN  Numeraire Token0 Ether0.00047909421
0x425220de2663fc4d10f5eec61bebf8bbaa2d2e7956921be3fd76b7fe161cbe23Transfer128842522021-07-23 18:33:3310 hrs 35 mins ago0x4dd235abf97c505446a452ab17c4b58500700c8e IN  Numeraire Token0 Ether0.00054753624
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Latest 1 internal transaction
Parent Txn Hash Block From To Value
0x7991428c24a2bdfe1936f25048f44be02ef127f642aa8c5ad9e49050d03368a180362102019-06-26 22:20:38758 days 6 hrs ago Numeraire Token 0x0000000000377d181a0ebd08590c6b399b2720001.621780975478902616 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
NumeraireBackend

Compiler Version
v0.4.11+commit.68ef5810

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2017-06-20
*/

pragma solidity ^0.4.11;

contract Safe {
    // Check if it is safe to add two numbers
    function safeAdd(uint a, uint b) internal returns (uint) {
        uint c = a + b;
        assert(c >= a && c >= b);
        return c;
    }

    // Check if it is safe to subtract two numbers
    function safeSubtract(uint a, uint b) internal returns (uint) {
        uint c = a - b;
        assert(b <= a && c <= a);
        return c;
    }

    function safeMultiply(uint a, uint b) internal returns (uint) {
        uint c = a * b;
        assert(a == 0 || (c / a) == b);
        return c;
    }

    function shrink128(uint a) internal returns (uint128) {
        assert(a < 0x100000000000000000000000000000000);
        return uint128(a);
    }

    // mitigate short address attack
    modifier onlyPayloadSize(uint numWords) {
        assert(msg.data.length == numWords * 32 + 4);
        _;
    }

    // allow ether to be received
    function () payable { }
}

// Class variables used both in NumeraireBackend and NumeraireDelegate

contract NumeraireShared is Safe {

    address public numerai = this;

    // Cap the total supply and the weekly supply
    uint256 public supply_cap = 21000000e18; // 21 million
    uint256 public weekly_disbursement = 96153846153846153846153;

    uint256 public initial_disbursement;
    uint256 public deploy_time;

    uint256 public total_minted;

    // ERC20 requires totalSupply, balanceOf, and allowance
    uint256 public totalSupply;
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    mapping (uint => Tournament) public tournaments;  // tournamentID

    struct Tournament {
        uint256 creationTime;
        uint256[] roundIDs;
        mapping (uint256 => Round) rounds;  // roundID
    } 

    struct Round {
        uint256 creationTime;
        uint256 endTime;
        uint256 resolutionTime;
        mapping (address => mapping (bytes32 => Stake)) stakes;  // address of staker
    }

    // The order is important here because of its packing characteristics.
    // Particularly, `amount` and `confidence` are in the *same* word, so
    // Solidity can update both at the same time (if the optimizer can figure
    // out that you're updating both).  This makes `stake()` cheap.
    struct Stake {
        uint128 amount; // Once the stake is resolved, this becomes 0
        uint128 confidence;
        bool successful;
        bool resolved;
    }

    // Generates a public event on the blockchain to notify clients
    event Mint(uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Staked(address indexed staker, bytes32 tag, uint256 totalAmountStaked, uint256 confidence, uint256 indexed tournamentID, uint256 indexed roundID);
    event RoundCreated(uint256 indexed tournamentID, uint256 indexed roundID, uint256 endTime, uint256 resolutionTime);
    event TournamentCreated(uint256 indexed tournamentID);
    event StakeDestroyed(uint256 indexed tournamentID, uint256 indexed roundID, address indexed stakerAddress, bytes32 tag);
    event StakeReleased(uint256 indexed tournamentID, uint256 indexed roundID, address indexed stakerAddress, bytes32 tag, uint256 etherReward);

    // Calculate allowable disbursement
    function getMintable() constant returns (uint256) {
        return
            safeSubtract(
                safeAdd(initial_disbursement,
                    safeMultiply(weekly_disbursement,
                        safeSubtract(block.timestamp, deploy_time))
                    / 1 weeks),
                total_minted);
    }
}

// From OpenZepplin: https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/contracts/ownership/Shareable.sol
/*
 * Shareable
 * 
 * Effectively our multisig contract
 *
 * Based on https://github.com/ethereum/dapp-bin/blob/master/wallet/wallet.sol
 *
 * inheritable "property" contract that enables methods to be protected by requiring the acquiescence of either a single, or, crucially, each of a number of, designated owners.
 *
 * usage:
 * use modifiers onlyowner (just own owned) or onlymanyowners(hash), whereby the same hash must be provided by some number (specified in constructor) of the set of owners (specified in the constructor) before the interior is executed.
 */
contract Shareable {
  // TYPES

  // struct for the status of a pending operation.
  struct PendingState {
    uint yetNeeded;
    uint ownersDone;
    uint index;
  }


  // FIELDS

  // the number of owners that must confirm the same operation before it is run.
  uint public required;

  // list of owners
  address[256] owners;
  uint constant c_maxOwners = 250;
  // index on the list of owners to allow reverse lookup
  mapping(address => uint) ownerIndex;
  // the ongoing operations.
  mapping(bytes32 => PendingState) pendings;
  bytes32[] pendingsIndex;


  // EVENTS

  // this contract only has six types of events: it can accept a confirmation, in which case
  // we record owner and operation (hash) alongside it.
  event Confirmation(address owner, bytes32 operation);
  event Revoke(address owner, bytes32 operation);


  // MODIFIERS

  address thisContract = this;

  // simple single-sig function modifier.
  modifier onlyOwner {
    if (isOwner(msg.sender))
      _;
  }

  // multi-sig function modifier: the operation must have an intrinsic hash in order
  // that later attempts can be realised as the same underlying operation and
  // thus count as confirmations.
  modifier onlyManyOwners(bytes32 _operation) {
    if (confirmAndCheck(_operation))
      _;
  }


  // CONSTRUCTOR

  // constructor is given number of sigs required to do protected "onlymanyowners" transactions
  // as well as the selection of addresses capable of confirming them.
  function Shareable(address[] _owners, uint _required) {
    owners[1] = msg.sender;
    ownerIndex[msg.sender] = 1;
    for (uint i = 0; i < _owners.length; ++i) {
      owners[2 + i] = _owners[i];
      ownerIndex[_owners[i]] = 2 + i;
    }
    if (required > owners.length) throw;
    required = _required;
  }


  // new multisig is given number of sigs required to do protected "onlymanyowners" transactions
  // as well as the selection of addresses capable of confirming them.
  // take all new owners as an array
  function changeShareable(address[] _owners, uint _required) onlyManyOwners(sha3(msg.data)) {
    for (uint i = 0; i < _owners.length; ++i) {
      owners[1 + i] = _owners[i];
      ownerIndex[_owners[i]] = 1 + i;
    }
    if (required > owners.length) throw;
    required = _required;
  }

  // METHODS

  // Revokes a prior confirmation of the given operation
  function revoke(bytes32 _operation) external {
    uint index = ownerIndex[msg.sender];
    // make sure they're an owner
    if (index == 0) return;
    uint ownerIndexBit = 2**index;
    var pending = pendings[_operation];
    if (pending.ownersDone & ownerIndexBit > 0) {
      pending.yetNeeded++;
      pending.ownersDone -= ownerIndexBit;
      Revoke(msg.sender, _operation);
    }
  }

  // Gets an owner by 0-indexed position (using numOwners as the count)
  function getOwner(uint ownerIndex) external constant returns (address) {
    return address(owners[ownerIndex + 1]);
  }

  function isOwner(address _addr) constant returns (bool) {
    return ownerIndex[_addr] > 0;
  }

  function hasConfirmed(bytes32 _operation, address _owner) constant returns (bool) {
    var pending = pendings[_operation];
    uint index = ownerIndex[_owner];

    // make sure they're an owner
    if (index == 0) return false;

    // determine the bit to set for this owner.
    uint ownerIndexBit = 2**index;
    return !(pending.ownersDone & ownerIndexBit == 0);
  }

  // INTERNAL METHODS

  function confirmAndCheck(bytes32 _operation) internal returns (bool) {
    // determine what index the present sender is:
    uint index = ownerIndex[msg.sender];
    // make sure they're an owner
    if (index == 0) return;

    var pending = pendings[_operation];
    // if we're not yet working on this operation, switch over and reset the confirmation status.
    if (pending.yetNeeded == 0) {
      // reset count of confirmations needed.
      pending.yetNeeded = required;
      // reset which owners have confirmed (none) - set our bitmap to 0.
      pending.ownersDone = 0;
      pending.index = pendingsIndex.length++;
      pendingsIndex[pending.index] = _operation;
    }
    // determine the bit to set for this owner.
    uint ownerIndexBit = 2**index;
    // make sure we (the message sender) haven't confirmed this operation previously.
    if (pending.ownersDone & ownerIndexBit == 0) {
      Confirmation(msg.sender, _operation);
      // ok - check if count is enough to go ahead.
      if (pending.yetNeeded <= 1) {
        // enough confirmations: reset and run interior.
        delete pendingsIndex[pendings[_operation].index];
        delete pendings[_operation];
        return true;
      }
      else
        {
          // not enough: record that this owner in particular confirmed.
          pending.yetNeeded--;
          pending.ownersDone |= ownerIndexBit;
        }
    }
  }

  function clearPending() internal {
    uint length = pendingsIndex.length;
    for (uint i = 0; i < length; ++i)
    if (pendingsIndex[i] != 0)
      delete pendings[pendingsIndex[i]];
    delete pendingsIndex;
  }
}

// From OpenZepplin: https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/contracts/lifecycle/Pausable.sol
/*
 * Stoppable
 * Abstract contract that allows children to implement an
 * emergency stop mechanism.
 */
contract StoppableShareable is Shareable {
  bool public stopped;
  bool public stoppable = true;

  modifier stopInEmergency { if (!stopped) _; }
  modifier onlyInEmergency { if (stopped) _; }

  function StoppableShareable(address[] _owners, uint _required) Shareable(_owners, _required) {
  }

  // called by the owner on emergency, triggers stopped state
  function emergencyStop() external onlyOwner {
    assert(stoppable);
    stopped = true;
  }

  // called by the owners on end of emergency, returns to normal state
  function release() external onlyManyOwners(sha3(msg.data)) {
    assert(stoppable);
    stopped = false;
  }

  // called by the owners to disable ability to begin or end an emergency stop
  function disableStopping() external onlyManyOwners(sha3(msg.data)) {
    stoppable = false;
  }
}

// This is the contract that will be unchangeable once deployed.  It will call delegate functions in another contract to change state.  The delegate contract is upgradable.

contract NumeraireBackend is StoppableShareable, NumeraireShared {

    address public delegateContract;
    bool public contractUpgradable = true;
    address[] public previousDelegates;

    string public standard = "ERC20";

    // ERC20 requires name, symbol, and decimals
    string public name = "Numeraire";
    string public symbol = "NMR";
    uint256 public decimals = 18;

    event DelegateChanged(address oldAddress, address newAddress);

    function NumeraireBackend(address[] _owners, uint256 _num_required, uint256 _initial_disbursement) StoppableShareable(_owners, _num_required) {
        totalSupply = 0;
        total_minted = 0;

        initial_disbursement = _initial_disbursement;
        deploy_time = block.timestamp;
    }

    function disableContractUpgradability() onlyManyOwners(sha3(msg.data)) returns (bool) {
        assert(contractUpgradable);
        contractUpgradable = false;
    }

    function changeDelegate(address _newDelegate) onlyManyOwners(sha3(msg.data)) returns (bool) {
        assert(contractUpgradable);

        if (_newDelegate != delegateContract) {
            previousDelegates.push(delegateContract);
            var oldDelegate = delegateContract;
            delegateContract = _newDelegate;
            DelegateChanged(oldDelegate, _newDelegate);
            return true;
        }

        return false;
    }

    function claimTokens(address _token) onlyOwner {
        assert(_token != numerai);
        if (_token == 0x0) {
            msg.sender.transfer(this.balance);
            return;
        }

        NumeraireBackend token = NumeraireBackend(_token);
        uint256 balance = token.balanceOf(this);
        token.transfer(msg.sender, balance);
    }

    function mint(uint256 _value) stopInEmergency returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("mint(uint256)")), _value);
    }

    function stake(uint256 _value, bytes32 _tag, uint256 _tournamentID, uint256 _roundID, uint256 _confidence) stopInEmergency returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("stake(uint256,bytes32,uint256,uint256,uint256)")), _value, _tag, _tournamentID, _roundID, _confidence);
    }

    function stakeOnBehalf(address _staker, uint256 _value, bytes32 _tag, uint256 _tournamentID, uint256 _roundID, uint256 _confidence) stopInEmergency onlyPayloadSize(6) returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("stakeOnBehalf(address,uint256,bytes32,uint256,uint256,uint256)")), _staker, _value, _tag, _tournamentID, _roundID, _confidence);
    }

    function releaseStake(address _staker, bytes32 _tag, uint256 _etherValue, uint256 _tournamentID, uint256 _roundID, bool _successful) stopInEmergency onlyPayloadSize(6) returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("releaseStake(address,bytes32,uint256,uint256,uint256,bool)")), _staker, _tag, _etherValue, _tournamentID, _roundID, _successful);
    }

    function destroyStake(address _staker, bytes32 _tag, uint256 _tournamentID, uint256 _roundID) stopInEmergency onlyPayloadSize(4) returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("destroyStake(address,bytes32,uint256,uint256)")), _staker, _tag, _tournamentID, _roundID);
    }

    function numeraiTransfer(address _to, uint256 _value) onlyPayloadSize(2) returns(bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("numeraiTransfer(address,uint256)")), _to, _value);
    }

    function withdraw(address _from, address _to, uint256 _value) onlyPayloadSize(3) returns(bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("withdraw(address,address,uint256)")), _from, _to, _value);
    }

    function createTournament(uint256 _tournamentID) returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("createTournament(uint256)")), _tournamentID);
    }

    function createRound(uint256 _tournamentID, uint256 _roundID, uint256 _endTime, uint256 _resolutionTime) returns (bool ok) {
        return delegateContract.delegatecall(bytes4(sha3("createRound(uint256,uint256,uint256,uint256)")), _tournamentID, _roundID, _endTime, _resolutionTime);
    }

    function getTournament(uint256 _tournamentID) constant returns (uint256, uint256[]) {
        var tournament = tournaments[_tournamentID];
        return (tournament.creationTime, tournament.roundIDs);
    }

    function getRound(uint256 _tournamentID, uint256 _roundID) constant returns (uint256, uint256, uint256) {
        var round = tournaments[_tournamentID].rounds[_roundID];
        return (round.creationTime, round.endTime, round.resolutionTime);
    }

    function getStake(uint256 _tournamentID, uint256 _roundID, address _staker, bytes32 _tag) constant returns (uint256, uint256, bool, bool) {
        var stake = tournaments[_tournamentID].rounds[_roundID].stakes[_staker][_tag];
        return (stake.confidence, stake.amount, stake.successful, stake.resolved);
    }

    // ERC20: Send from a contract
    function transferFrom(address _from, address _to, uint256 _value) stopInEmergency onlyPayloadSize(3) returns (bool ok) {
        require(!isOwner(_from) && _from != numerai); // Transfering from Numerai can only be done with the numeraiTransfer function

        // Check for sufficient funds.
        require(balanceOf[_from] >= _value);
        // Check for authorization to spend.
        require(allowance[_from][msg.sender] >= _value);

        balanceOf[_from] = safeSubtract(balanceOf[_from], _value);
        allowance[_from][msg.sender] = safeSubtract(allowance[_from][msg.sender], _value);
        balanceOf[_to] = safeAdd(balanceOf[_to], _value);

        // Notify anyone listening.
        Transfer(_from, _to, _value);

        return true;
    }

    // ERC20: Anyone with NMR can transfer NMR
    function transfer(address _to, uint256 _value) stopInEmergency onlyPayloadSize(2) returns (bool ok) {
        // Check for sufficient funds.
        require(balanceOf[msg.sender] >= _value);

        balanceOf[msg.sender] = safeSubtract(balanceOf[msg.sender], _value);
        balanceOf[_to] = safeAdd(balanceOf[_to], _value);

        // Notify anyone listening.
        Transfer(msg.sender, _to, _value);

        return true;
    }

    // ERC20: Allow other contracts to spend on sender's behalf
    function approve(address _spender, uint256 _value) stopInEmergency onlyPayloadSize(2) returns (bool ok) {
        require((_value == 0) || (allowance[msg.sender][_spender] == 0));
        allowance[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    function changeApproval(address _spender, uint256 _oldValue, uint256 _newValue) stopInEmergency onlyPayloadSize(3) returns (bool ok) {
        require(allowance[msg.sender][_spender] == _oldValue);
        allowance[msg.sender][_spender] = _newValue;
        Approval(msg.sender, _spender, _newValue);
        return true;
    }
}

Contract Security Audit

Contract ABI

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _owners (address[]): 0x54479be2ca140163031efec1b7608b9759ec897a,0x193b78eb3668982f17862181d083ff2e2a4dcc39,0x6833b2469e80ef0c72aa784e27b2666ab43568f5,0x1d68938194004722b814f00003d3eca19357344a
Arg [1] : _num_required (uint256): 4
Arg [2] : _initial_disbursement (uint256): 2223451220456790000000000

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [2] : 00000000000000000000000000000000000000000001d6d5883d100064d1dc00
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [4] : 00000000000000000000000054479be2ca140163031efec1b7608b9759ec897a
Arg [5] : 000000000000000000000000193b78eb3668982f17862181d083ff2e2a4dcc39
Arg [6] : 0000000000000000000000006833b2469e80ef0c72aa784e27b2666ab43568f5
Arg [7] : 0000000000000000000000001d68938194004722b814f00003d3eca19357344a


Swarm Source

bzzr://60f862963ad9cd0e55f0c084f9f7587a2540fff30877737a37ba1e0b0835d11e
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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