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Contract Overview
Balance: 0 Ether
Ether Value: $0
Transactions: 17 txns
 Latest 17 txns

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0x1f351b6bcce5db09e071730bf75a44537f0abc303450b0d642d6d0b9633b1468274 days 9 hrs ago0x9e6033edd6ce498cc82051d78ef8de7c509243e7  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.00024424
0x5bef5c3c9aa16aa8c84447ffbde5d721c87419ebe8e3edef337d6c5bbc11b68a352 days 33 mins ago0x38c2b4f59f8fcdb9323be695c25f4ad79bdf1866  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.00079317
0x47e5c275df72c43ea350bfb5c6260e7eba8c662c0184b3075a8d403a3e51e6e6352 days 34 mins ago0x9e518ec54688b23ddac058f5b75902e94d2bad7c  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.000776475
0xfdb7afaef861a1c29ae8a1b2ac368a3a814b9e0ba97ff01f32f4a93c3e0f582f352 days 36 mins ago0x954692f5611eb7d620362c883c2a34f761aca075  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.003882984
0xac133fd2dae1940a852fc76be75305eaf5a261e3051c38ae90d0fc4da26747ac360 days 20 hrs ago0x38c2b4f59f8fcdb9323be695c25f4ad79bdf1866  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.001055124
0x5a460e206d47020b95695e5f7fae6f0967537260a5ad4e145552e6cc2a1d7e7e360 days 20 hrs ago0x9e518ec54688b23ddac058f5b75902e94d2bad7c  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.000776475
0x6b413b2b331fbc31dc93a01a86ee15cde93114cf5a5852fc401b37fa2f4550f5360 days 20 hrs ago0x954692f5611eb7d620362c883c2a34f761aca075  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.003884328
0xdb3b938790773a851dd380082c181f831f3f79ff6893e789e6f67d55b74b7c28458 days 23 hrs ago0x9e518ec54688b23ddac058f5b75902e94d2bad7c  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.002612688
0x10318ea4022868fb77f89f41e88cac03b6b88351bbe2dd6b612a952236bad9f3458 days 23 hrs ago0x954692f5611eb7d620362c883c2a34f761aca075  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.00184875
0x6cecc8246c2c0d9ac7d876cf448830f478c148d0066a668f91652e3977020aec459 days 5 mins ago0x38c2b4f59f8fcdb9323be695c25f4ad79bdf1866  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.009621664
0xcade94f660460e5a26489021c751c76503e9211e714a2c76251c1a57e3d155fe460 days 2 hrs ago0x9e518ec54688b23ddac058f5b75902e94d2bad7c  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.001341953527
0x8a105c87f9d1b18dde78925c75b2420c75bc0f2e0f96b829ed22b06e05bcf996460 days 2 hrs ago0x954692f5611eb7d620362c883c2a34f761aca075  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.000948297753
0x82e946bd09fa9e9981cb796a06592195018c698f6f59ebcd94f9d01bd80ed79c460 days 2 hrs ago0x954692f5611eb7d620362c883c2a34f761aca075  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.000891190264
0xffe046d324ee30fb49d38d1ce1d5afb28630cdf4046bb14e66ff577060a10852460 days 2 hrs ago0x38c2b4f59f8fcdb9323be695c25f4ad79bdf1866  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.00081345
0x443002cd0cb81f54393651fde4110207d80ce4e3d76a60ea751b700b2c22a9d6460 days 2 hrs ago0x954692f5611eb7d620362c883c2a34f761aca075  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c963000 Ether0.004810832
0x7fe3d1cfc8c63676ef31da0131f5f7c8966dc15ed0dd56ad75d4893a8d1c8215581 days 17 hrs ago0xabf3cbba4a3b5a2bafc728a9f07cabda41a1846a  IN   0x2e7b90ef99de7745fa7e5ed0180178a488c9630081.062540710000001 Ether0.00044846
0x5413b2cb80c111e735e0b9fd96940d4bdc092601d63067f0409644a843c73197581 days 18 hrs ago0x954692f5611eb7d620362c883c2a34f761aca075  IN    Contract Creation0 Ether0.04090674
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ParentTxHash Block Age From To Value
0x5bef5c3c9aa16aa8c84447ffbde5d721c87419ebe8e3edef337d6c5bbc11b68a4341647352 days 33 mins ago0x2e7b90ef99de7745fa7e5ed0180178a488c963000x4d3487f4e346eba00014f7419316b1cca798d4ae0.962540710000001024 Ether
0xac133fd2dae1940a852fc76be75305eaf5a261e3051c38ae90d0fc4da26747ac4316344360 days 20 hrs ago0x2e7b90ef99de7745fa7e5ed0180178a488c963000x42e1ce9bf40b5878915716dfbf25755dfbacb81610.1 Ether
0xdb3b938790773a851dd380082c181f831f3f79ff6893e789e6f67d55b74b7c283907801458 days 23 hrs ago0x2e7b90ef99de7745fa7e5ed0180178a488c963000xda867670d79de9ccf2c5678099cf693c6eef279650 Ether
0xcade94f660460e5a26489021c751c76503e9211e714a2c76251c1a57e3d155fe3902326460 days 2 hrs ago0x2e7b90ef99de7745fa7e5ed0180178a488c963000x5a84969bb663fb64f6d015dcf9f622aedc79675020 Ether
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Contract Name: Wallet
Compiler Text: v0.3.2-2016-04-18-81ae2a7
Optimization Enabled: No
Runs (Optimiser):  200



  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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