Contract Overview
ETH Balance: 49,647.918003909 Ether ($507,898.20)
Mined:  0
No Of Transactions: 16 txns + 3 internalTxns
  Latest 16 txns

TxHash Block Age From To Value [TxFee]
0x43f47ec018a66398ba75849ecd004eb8045f569307684d9a9109470c267166d130193763 hrs 12 mins ago0x6e62e741a472f82c6def21e81c4d961769a205a2  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00075488
0x3be1a0dbdcbd74478d04d1372916b089cc29a8fbcc6f5c67fff75276af41890430193613 hrs 16 mins ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.0037032
0xbf53738b962342f36d816c40bbff2802bbbf549f359c64467537ea05cf6f0afe293967413 days 6 hrs ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00042882
0x176f26d3d3c1720dfc49d4c81771b4570ea29dd7480f4b0f70faa0aac3c46ff5293965913 days 6 hrs ago0x6e62e741a472f82c6def21e81c4d961769a205a2  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00075424
0xa3db4fac246ad86398491ca4aaafa9b55f3543ecd3855fe8cf186d447e633310288070823 days 26 mins ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00370064
0x1ccdf1bd469c99a814489cc42dd3754f77784c6878ac6e44f069a0fa46c9a3e8282539432 days 3 hrs ago0xd39379d7887c6a9ebd01007e2b96efc774652047  IN   0xfc1cef1abba7215f99b4aecd60432c4880b84829425.04706442 Ether0.00044846
0xba7a0addf7efb014f24a6f31ef5692a607557ef9f8a3e0e845851a337e67ddb0282538932 days 3 hrs ago0xa6f0068d37f64f028780fd6320d38a9afe6592a5  IN   0xfc1cef1abba7215f99b4aecd60432c4880b8482916,686.71491314 Ether0.00044846
0xef7c533c19944a74a91f22b25d7227d027ae3a55c274fc20fca0842522c8ffc1282536632 days 3 hrs ago0x5c65ac262d234cbf5d2163d5e127c5e46e83b8b1  IN   0xfc1cef1abba7215f99b4aecd60432c4880b8482915,382.09949418 Ether0.00044846
0x079863f065b1be5081ef2bab71fd69b48e919a10ec630193c834de979707c8ce282528632 days 4 hrs ago0x38754c78e416075e98ab032149d29a1a17fda4e4  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848294,171.90703408 Ether0.00044846
0x76cd5fb903c3a779b81f976f8db721e85692952491244f21490182f0feded0fc282520932 days 4 hrs ago0x641aafb42f604b1d33b93d85ed73de3c27920053  IN   0xfc1cef1abba7215f99b4aecd60432c4880b8482913,333.33149418 Ether0.00044846
0x93ac52d86fcf587be5cf6693bbe6e0458a794cba07be33ac8d3ce0f6206070c4282005233 days 59 mins ago0x6e62e741a472f82c6def21e81c4d961769a205a2  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00075488
0x90defe35ce537d53aaeff238dc144baf70211508229103296aecee7a1583d307282004633 days 1 hr ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00349752
0x1c39325dd5161b192a4dc3c020b0cf47e362db2d9da8f18020df0f3d0213268e281971933 days 2 hrs ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00208076
0x0290db316f764e3749a42d7d61d3212a27866d4e714d31daacb51024b7af43bc281908033 days 4 hrs ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848290 Ether0.00349749
0x5a32966e3c785b201971a0c404212f240256143d0e42d35f80f9f3d554977a7b281903233 days 5 hrs ago0x198ef1ec325a96cc354c7266a038be8b5c558f67  IN   0xfc1cef1abba7215f99b4aecd60432c4880b848291 Ether0.00044846
0x785b3d89a2626c1ce20263d57c3e28e7dcb335bf62f31276fa7c055aac64a00b281889433 days 5 hrs ago0x246c1243e51cab00064ebb199eaf463449f7928f  IN    Contract Creation0 Ether0.04174092
 Internal Transactions as a result of Contract Execution
  Latest 3 Internal Transactions

ParentTxHash Block Age From To Value
0x43f47ec018a66398ba75849ecd004eb8045f569307684d9a9109470c267166d130193763 hrs 12 mins ago0xfc1cef1abba7215f99b4aecd60432c4880b848290x39dc2965c24e0c3840669063b530e41650226eda66.5735960908495 Ether
0x176f26d3d3c1720dfc49d4c81771b4570ea29dd7480f4b0f70faa0aac3c46ff5293965913 days 6 hrs ago0xfc1cef1abba7215f99b4aecd60432c4880b848290x9f4860c577c5d0928d9b38153db8cb69112e346b285.5084 Ether
0x93ac52d86fcf587be5cf6693bbe6e0458a794cba07be33ac8d3ce0f6206070c4282005233 days 59 mins ago0xfc1cef1abba7215f99b4aecd60432c4880b848290xc2d9f9c9dd6f76784a8f56f936953b6661a12da80.1 Ether
Contract Source Code Verified
Note: Displaying matching verified source code at contract 0x5cb5f46a655c02889172323760d12d0e5d83cdaf
Contract Name: Wallet
Compiler Version: v0.3.2-2016-04-18-81ae2a7
Optimization Enabled: No
Online Solidity Editor:  -NA-



  Contract Source Code   Find Similiar Contracts
//sol Wallet
// Multi-sig, daily-limited account proxy/wallet.
// @authors:
// Gav Wood <[email protected]>
// 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, modifiable) before the
// interior is executed.
contract multiowned {

    // TYPES

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

    // EVENTS

    // this contract only has five 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);
    // some others are in the case of an owner changing.
    event OwnerChanged(address oldOwner, address newOwner);
    event OwnerAdded(address newOwner);
    event OwnerRemoved(address oldOwner);
    // the last one is emitted if the required signatures change
    event RequirementChanged(uint newRequirement);

    // MODIFIERS

    // 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))
            _
    }

    // METHODS

    // constructor is given number of sigs required to do protected "onlymanyowners" transactions
    // as well as the selection of addresses capable of confirming them.
    function multiowned(address[] _owners, uint _required) {
        m_numOwners = _owners.length + 1;
        m_owners[1] = uint(msg.sender);
        m_ownerIndex[uint(msg.sender)] = 1;
        for (uint i = 0; i < _owners.length; ++i)
        {
            m_owners[2 + i] = uint(_owners[i]);
            m_ownerIndex[uint(_owners[i])] = 2 + i;
        }
        m_required = _required;
    }
    
    // Revokes a prior confirmation of the given operation
    function revoke(bytes32 _operation) external {
        uint ownerIndex = m_ownerIndex[uint(msg.sender)];
        // make sure they're an owner
        if (ownerIndex == 0) return;
        uint ownerIndexBit = 2**ownerIndex;
        var pending = m_pending[_operation];
        if (pending.ownersDone & ownerIndexBit > 0) {
            pending.yetNeeded++;
            pending.ownersDone -= ownerIndexBit;
            Revoke(msg.sender, _operation);
        }
    }
    
    // Replaces an owner `_from` with another `_to`.
    function changeOwner(address _from, address _to) onlymanyowners(sha3(msg.data, block.number)) external {
        if (isOwner(_to)) return;
        uint ownerIndex = m_ownerIndex[uint(_from)];
        if (ownerIndex == 0) return;

        clearPending();
        m_owners[ownerIndex] = uint(_to);
        m_ownerIndex[uint(_from)] = 0;
        m_ownerIndex[uint(_to)] = ownerIndex;
        OwnerChanged(_from, _to);
    }
    
    function addOwner(address _owner) onlymanyowners(sha3(msg.data, block.number)) external {
        if (isOwner(_owner)) return;

        clearPending();
        if (m_numOwners >= c_maxOwners)
            reorganizeOwners();
        if (m_numOwners >= c_maxOwners)
            return;
        m_numOwners++;
        m_owners[m_numOwners] = uint(_owner);
        m_ownerIndex[uint(_owner)] = m_numOwners;
        OwnerAdded(_owner);
    }
    
    function removeOwner(address _owner) onlymanyowners(sha3(msg.data, block.number)) external {
        uint ownerIndex = m_ownerIndex[uint(_owner)];
        if (ownerIndex == 0) return;
        if (m_required > m_numOwners - 1) return;

        m_owners[ownerIndex] = 0;
        m_ownerIndex[uint(_owner)] = 0;
        clearPending();
        reorganizeOwners(); //make sure m_numOwner is equal to the number of owners and always points to the optimal free slot
        OwnerRemoved(_owner);
    }
    
    function changeRequirement(uint _newRequired) onlymanyowners(sha3(msg.data, block.number)) external {
        if (_newRequired > m_numOwners) return;
        m_required = _newRequired;
        clearPending();
        RequirementChanged(_newRequired);
    }
    
    function isOwner(address _addr) returns (bool) {
        return m_ownerIndex[uint(_addr)] > 0;
    }
    
    function hasConfirmed(bytes32 _operation, address _owner) constant returns (bool) {
        var pending = m_pending[_operation];
        uint ownerIndex = m_ownerIndex[uint(_owner)];

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

        // determine the bit to set for this owner.
        uint ownerIndexBit = 2**ownerIndex;
        if (pending.ownersDone & ownerIndexBit == 0) {
            return false;
        } else {
            return true;
        }
    }
    
    // INTERNAL METHODS

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

        var pending = m_pending[_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 = m_required;
            // reset which owners have confirmed (none) - set our bitmap to 0.
            pending.ownersDone = 0;
            pending.index = m_pendingIndex.length++;
            m_pendingIndex[pending.index] = _operation;
        }
        // determine the bit to set for this owner.
        uint ownerIndexBit = 2**ownerIndex;
        // 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 m_pendingIndex[m_pending[_operation].index];
                delete m_pending[_operation];
                return true;
            }
            else
            {
                // not enough: record that this owner in particular confirmed.
                pending.yetNeeded--;
                pending.ownersDone |= ownerIndexBit;
            }
        }
    }

    function reorganizeOwners() private returns (bool) {
        uint free = 1;
        while (free < m_numOwners)
        {
            while (free < m_numOwners && m_owners[free] != 0) free++;
            while (m_numOwners > 1 && m_owners[m_numOwners] == 0) m_numOwners--;
            if (free < m_numOwners && m_owners[m_numOwners] != 0 && m_owners[free] == 0)
            {
                m_owners[free] = m_owners[m_numOwners];
                m_ownerIndex[m_owners[free]] = free;
                m_owners[m_numOwners] = 0;
            }
        }
    }
    
    function clearPending() internal {
        uint length = m_pendingIndex.length;
        for (uint i = 0; i < length; ++i)
            if (m_pendingIndex[i] != 0)
                delete m_pending[m_pendingIndex[i]];
        delete m_pendingIndex;
    }
        
    // FIELDS

    // the number of owners that must confirm the same operation before it is run.
    uint public m_required;
    // pointer used to find a free slot in m_owners
    uint public m_numOwners;
    
    // list of owners
    uint[256] m_owners;
    uint constant c_maxOwners = 250;
    // index on the list of owners to allow reverse lookup
    mapping(uint => uint) m_ownerIndex;
    // the ongoing operations.
    mapping(bytes32 => PendingState) m_pending;
    bytes32[] m_pendingIndex;
}

// inheritable "property" contract that enables methods to be protected by placing a linear limit (specifiable)
// on a particular resource per calendar day. is multiowned to allow the limit to be altered. resource that method
// uses is specified in the modifier.
contract daylimit is multiowned {

    // MODIFIERS

    // simple modifier for daily limit.
    modifier limitedDaily(uint _value) {
        if (underLimit(_value))
            _
    }

    // METHODS

    // constructor - stores initial daily limit and records the present day's index.
    function daylimit(uint _limit) {
        m_dailyLimit = _limit;
        m_lastDay = today();
    }
    // (re)sets the daily limit. needs many of the owners to confirm. doesn't alter the amount already spent today.
    function setDailyLimit(uint _newLimit) onlymanyowners(sha3(msg.data, block.number)) external {
        m_dailyLimit = _newLimit;
    }
    // (re)sets the daily limit. needs many of the owners to confirm. doesn't alter the amount already spent today.
    function resetSpentToday() onlymanyowners(sha3(msg.data, block.number)) external {
        m_spentToday = 0;
    }
    
    // INTERNAL METHODS
    
    // checks to see if there is at least `_value` left from the daily limit today. if there is, subtracts it and
    // returns true. otherwise just returns false.
    function underLimit(uint _value) internal onlyowner returns (bool) {
        // reset the spend limit if we're on a different day to last time.
        if (today() > m_lastDay) {
            m_spentToday = 0;
            m_lastDay = today();
        }
        // check to see if there's enough left - if so, subtract and return true.
        if (m_spentToday + _value >= m_spentToday && m_spentToday + _value <= m_dailyLimit) {
            m_spentToday += _value;
            return true;
        }
        return false;
    }
    // determines today's index.
    function today() private constant returns (uint) { return now / 1 days; }

    // FIELDS

    uint public m_dailyLimit;
    uint public m_spentToday;
    uint public m_lastDay;
}

// interface contract for multisig proxy contracts; see below for docs.
contract multisig {

    // EVENTS

    // logged events:
    // Funds has arrived into the wallet (record how much).
    event Deposit(address from, uint value);
    // Single transaction going out of the wallet (record who signed for it, how much, and to whom it's going).
    event SingleTransact(address owner, uint value, address to, bytes data);
    // Multi-sig transaction going out of the wallet (record who signed for it last, the operation hash, how much, and to whom it's going).
    event MultiTransact(address owner, bytes32 operation, uint value, address to, bytes data);
    // Confirmation still needed for a transaction.
    event ConfirmationNeeded(bytes32 operation, address initiator, uint value, address to, bytes data);
    
    // FUNCTIONS
    
    // TODO: document
    function changeOwner(address _from, address _to) external;
    function execute(address _to, uint _value, bytes _data) external returns (bytes32);
    function confirm(bytes32 _h) returns (bool);
}

// usage:
// bytes32 h = Wallet(w).from(oneOwner).transact(to, value, data);
// Wallet(w).from(anotherOwner).confirm(h);
contract Wallet is multisig, multiowned, daylimit {

    uint public version = 2;

    // TYPES

    // Transaction structure to remember details of transaction lest it need be saved for a later call.
    struct Transaction {
        address to;
        uint value;
        bytes data;
    }

    // METHODS

    // constructor - just pass on the owner array to the multiowned and
    // the limit to daylimit
    function Wallet(address[] _owners, uint _required, uint _daylimit)
            multiowned(_owners, _required) daylimit(_daylimit) {
    }
    
    // kills the contract sending everything to `_to`.
    function kill(address _to) onlymanyowners(sha3(msg.data, block.number)) external {
        suicide(_to);
    }
    
    // gets called when no other function matches
    function() {
        // just being sent some cash?
        if (msg.value > 0)
            Deposit(msg.sender, msg.value);
    }
    
    // Outside-visible transact entry point. Executes transacion immediately if below daily spend limit.
    // If not, goes into multisig process. We provide a hash on return to allow the sender to provide
    // shortcuts for the other confirmations (allowing them to avoid replicating the _to, _value
    // and _data arguments). They still get the option of using them if they want, anyways.
    function execute(address _to, uint _value, bytes _data) external onlyowner returns (bytes32 _r) {
        // first, take the opportunity to check that we're under the daily limit.
        if (underLimit(_value)) {
            SingleTransact(msg.sender, _value, _to, _data);
            // yes - just execute the call.
            _to.call.value(_value)(_data);
            return 0;
        }
        // determine our operation hash.
        _r = sha3(msg.data, block.number);
        if (!confirm(_r) && m_txs[_r].to == 0) {
            m_txs[_r].to = _to;
            m_txs[_r].value = _value;
            m_txs[_r].data = _data;
            ConfirmationNeeded(_r, msg.sender, _value, _to, _data);
        }
    }
    
    // confirm a transaction through just the hash. we use the previous transactions map, m_txs, in order
    // to determine the body of the transaction from the hash provided.
    function confirm(bytes32 _h) onlymanyowners(_h) returns (bool) {
        if (m_txs[_h].to != 0) {
            m_txs[_h].to.call.value(m_txs[_h].value)(m_txs[_h].data);
            MultiTransact(msg.sender, _h, m_txs[_h].value, m_txs[_h].to, m_txs[_h].data);
            delete m_txs[_h];
            return true;
        }
    }
    
    // INTERNAL METHODS
    
    function clearPending() internal {
        uint length = m_pendingIndex.length;
        for (uint i = 0; i < length; ++i)
            delete m_txs[m_pendingIndex[i]];
        super.clearPending();
    }

    // FIELDS

    // pending transactions we have at present.
    mapping (bytes32 => Transaction) m_txs;
}

  Contract ABI  
[{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"removeOwner","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"isOwner","outputs":[{"name":"","type":"bool"}],"type":"function"},{"constant":true,"inputs":[],"name":"m_numOwners","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"m_lastDay","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":false,"inputs":[],"name":"resetSpentToday","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"m_spentToday","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"addOwner","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"m_required","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":false,"inputs":[{"name":"_h","type":"bytes32"}],"name":"confirm","outputs":[{"name":"","type":"bool"}],"type":"function"},{"constant":false,"inputs":[{"name":"_newLimit","type":"uint256"}],"name":"setDailyLimit","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"execute","outputs":[{"name":"_r","type":"bytes32"}],"type":"function"},{"constant":false,"inputs":[{"name":"_operation","type":"bytes32"}],"name":"revoke","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_newRequired","type":"uint256"}],"name":"changeRequirement","outputs":[],"type":"function"},{"constant":true,"inputs":[{"name":"_operation","type":"bytes32"},{"name":"_owner","type":"address"}],"name":"hasConfirmed","outputs":[{"name":"","type":"bool"}],"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"}],"name":"kill","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"}],"name":"changeOwner","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"m_dailyLimit","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"inputs":[{"name":"_owners","type":"address[]"},{"name":"_required","type":"uint256"},{"name":"_daylimit","type":"uint256"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"owner","type":"address"},{"indexed":false,"name":"operation","type":"bytes32"}],"name":"Confirmation","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"owner","type":"address"},{"indexed":false,"name":"operation","type":"bytes32"}],"name":"Revoke","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newOwner","type":"address"}],"name":"OwnerAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldOwner","type":"address"}],"name":"OwnerRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newRequirement","type":"uint256"}],"name":"RequirementChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"from","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"owner","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"to","type":"address"},{"indexed":false,"name":"data","type":"bytes"}],"name":"SingleTransact","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"owner","type":"address"},{"indexed":false,"name":"operation","type":"bytes32"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"to","type":"address"},{"indexed":false,"name":"data","type":"bytes"}],"name":"MultiTransact","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"operation","type":"bytes32"},{"indexed":false,"name":"initiator","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"to","type":"address"},{"indexed":false,"name":"data","type":"bytes"}],"name":"ConfirmationNeeded","type":"event"}]

  Contract Creation Code Switch To Opcodes View
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Block Age txn Difficulty GasUsed Reward
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Block Age UncleNumber Difficulty GasUsed Reward