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/**
 *Submitted for verification at Etherscan.io on 2016-11-10
*/

pragma solidity ^0.4.4;


/// @title Multisignature wallet - Allows multiple parties to agree on transactions before execution.
/// @author Stefan George - <stefan.george@consensys.net>
contract MultiSigWallet {

    event Confirmation(address sender, bytes32 transactionHash);
    event Revocation(address sender, bytes32 transactionHash);
    event Submission(bytes32 transactionHash);
    event Execution(bytes32 transactionHash);
    event Deposit(address sender, uint value);
    event OwnerAddition(address owner);
    event OwnerRemoval(address owner);
    event RequiredUpdate(uint required);

    mapping (bytes32 => Transaction) public transactions;
    mapping (bytes32 => mapping (address => bool)) public confirmations;
    mapping (address => bool) public isOwner;
    address[] owners;
    bytes32[] transactionList;
    uint public required;

    struct Transaction {
        address destination;
        uint value;
        bytes data;
        uint nonce;
        bool executed;
    }

    modifier onlyWallet() {
        if (msg.sender != address(this))
            throw;
        _;
    }

    modifier signaturesFromOwners(bytes32 transactionHash, uint8[] v, bytes32[] rs) {
        for (uint i=0; i<v.length; i++)
            if (!isOwner[ecrecover(transactionHash, v[i], rs[i], rs[v.length + i])])
                throw;
        _;
    }

    modifier ownerDoesNotExist(address owner) {
        if (isOwner[owner])
            throw;
        _;
    }

    modifier ownerExists(address owner) {
        if (!isOwner[owner])
            throw;
        _;
    }

    modifier confirmed(bytes32 transactionHash, address owner) {
        if (!confirmations[transactionHash][owner])
            throw;
        _;
    }

    modifier notConfirmed(bytes32 transactionHash, address owner) {
        if (confirmations[transactionHash][owner])
            throw;
        _;
    }

    modifier notExecuted(bytes32 transactionHash) {
        if (transactions[transactionHash].executed)
            throw;
        _;
    }

    modifier notNull(address destination) {
        if (destination == 0)
            throw;
        _;
    }

    modifier validRequired(uint _ownerCount, uint _required) {
        if (   _required > _ownerCount
            || _required == 0
            || _ownerCount == 0)
            throw;
        _;
    }

    function addOwner(address owner)
        external
        onlyWallet
        ownerDoesNotExist(owner)
    {
        isOwner[owner] = true;
        owners.push(owner);
        OwnerAddition(owner);
    }

    function removeOwner(address owner)
        external
        onlyWallet
        ownerExists(owner)
    {
        isOwner[owner] = false;
        for (uint i=0; i<owners.length - 1; i++)
            if (owners[i] == owner) {
                owners[i] = owners[owners.length - 1];
                break;
            }
        owners.length -= 1;
        if (required > owners.length)
            updateRequired(owners.length);
        OwnerRemoval(owner);
    }

    function updateRequired(uint _required)
        public
        onlyWallet
        validRequired(owners.length, _required)
    {
        required = _required;
        RequiredUpdate(_required);
    }

    function addTransaction(address destination, uint value, bytes data, uint nonce)
        private
        notNull(destination)
        returns (bytes32 transactionHash)
    {
        transactionHash = sha3(destination, value, data, nonce);
        if (transactions[transactionHash].destination == 0) {
            transactions[transactionHash] = Transaction({
                destination: destination,
                value: value,
                data: data,
                nonce: nonce,
                executed: false
            });
            transactionList.push(transactionHash);
            Submission(transactionHash);
        }
    }

    function submitTransaction(address destination, uint value, bytes data, uint nonce)
        external
        returns (bytes32 transactionHash)
    {
        transactionHash = addTransaction(destination, value, data, nonce);
        confirmTransaction(transactionHash);
    }

    function submitTransactionWithSignatures(address destination, uint value, bytes data, uint nonce, uint8[] v, bytes32[] rs)
        external
        returns (bytes32 transactionHash)
    {
        transactionHash = addTransaction(destination, value, data, nonce);
        confirmTransactionWithSignatures(transactionHash, v, rs);
    }

    function addConfirmation(bytes32 transactionHash, address owner)
        private
        notConfirmed(transactionHash, owner)
    {
        confirmations[transactionHash][owner] = true;
        Confirmation(owner, transactionHash);
    }

    function confirmTransaction(bytes32 transactionHash)
        public
        ownerExists(msg.sender)
    {
        addConfirmation(transactionHash, msg.sender);
        executeTransaction(transactionHash);
    }

    function confirmTransactionWithSignatures(bytes32 transactionHash, uint8[] v, bytes32[] rs)
        public
        signaturesFromOwners(transactionHash, v, rs)
    {
        for (uint i=0; i<v.length; i++)
            addConfirmation(transactionHash, ecrecover(transactionHash, v[i], rs[i], rs[i + v.length]));
        executeTransaction(transactionHash);
    }

    function executeTransaction(bytes32 transactionHash)
        public
        notExecuted(transactionHash)
    {
        if (isConfirmed(transactionHash)) {
            Transaction tx = transactions[transactionHash];
            tx.executed = true;
            if (!tx.destination.call.value(tx.value)(tx.data))
                throw;
            Execution(transactionHash);
        }
    }

    function revokeConfirmation(bytes32 transactionHash)
        external
        ownerExists(msg.sender)
        confirmed(transactionHash, msg.sender)
        notExecuted(transactionHash)
    {
        confirmations[transactionHash][msg.sender] = false;
        Revocation(msg.sender, transactionHash);
    }

    function MultiSigWallet(address[] _owners, uint _required)
        validRequired(_owners.length, _required)
    {
        for (uint i=0; i<_owners.length; i++)
            isOwner[_owners[i]] = true;
        owners = _owners;
        required = _required;
    }

    function()
        payable
    {
        if (msg.value > 0)
            Deposit(msg.sender, msg.value);
    }

    function isConfirmed(bytes32 transactionHash)
        public
        constant
        returns (bool)
    {
        uint count = 0;
        for (uint i=0; i<owners.length; i++)
            if (confirmations[transactionHash][owners[i]])
                count += 1;
            if (count == required)
                return true;
    }

    function confirmationCount(bytes32 transactionHash)
        external
        constant
        returns (uint count)
    {
        for (uint i=0; i<owners.length; i++)
            if (confirmations[transactionHash][owners[i]])
                count += 1;
    }

    function filterTransactions(bool isPending)
        private
        returns (bytes32[] _transactionList)
    {
        bytes32[] memory _transactionListTemp = new bytes32[](transactionList.length);
        uint count = 0;
        for (uint i=0; i<transactionList.length; i++)
            if (   isPending && !transactions[transactionList[i]].executed
                || !isPending && transactions[transactionList[i]].executed)
            {
                _transactionListTemp[count] = transactionList[i];
                count += 1;
            }
        _transactionList = new bytes32[](count);
        for (i=0; i<count; i++)
            if (_transactionListTemp[i] > 0)
                _transactionList[i] = _transactionListTemp[i];
    }

    function getPendingTransactions()
        external
        constant
        returns (bytes32[] _transactionList)
    {
        return filterTransactions(true);
    }

    function getExecutedTransactions()
        external
        constant
        returns (bytes32[] _transactionList)
    {
        return filterTransactions(false);
    }
}

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

-----Decoded View---------------
Arg [0] : _owners (address[]): 0x46ef48E06ff160f311D17151E118C504D015ec6e,0x2Ef6E246ab8CA985044e733f696E08940414d57b,0xB21F27b9c4137849c8a991Fe1C18AB72A2F81Eb6,0xF0776FEBC8a729B60602e2c2F6c446a518DF78Fe,0x34D6A1fd8aa15cfb00d6c6d47963d5E4e32aC2B8
Arg [1] : _required (uint256): 3

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [3] : 00000000000000000000000046ef48e06ff160f311d17151e118c504d015ec6e
Arg [4] : 0000000000000000000000002ef6e246ab8ca985044e733f696e08940414d57b
Arg [5] : 000000000000000000000000b21f27b9c4137849c8a991fe1c18ab72a2f81eb6
Arg [6] : 000000000000000000000000f0776febc8a729b60602e2c2f6c446a518df78fe
Arg [7] : 00000000000000000000000034d6a1fd8aa15cfb00d6c6d47963d5e4e32ac2b8