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Balance: 0 Ether
Ether Value: $0
Transactions: 4 txns
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Contract Creator: 0xa26e15c895efc0616177b7c1e7270a4c7d51c997at txn 0xcd6fb6ee71f0373cc4695aa9172ec1a53257c7e1a8e32958fba81a47d0be323b
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 Latest 4 txns

TxHash Age From To Value [TxFee]
0x8cb6929b5d853272373f3d25f33b713c159866f791d5d937466c99d808741f0e50 days 11 hrs ago0x6cb117a635dc7633b42089c607fdfc5c60b7d679  IN   0x732e0abd062e6bbd7e2a83d345d24f780a2abb060 Ether0.0010973232
0x9aa7f37be5164001969f73c20ed745fa16fb1386aee35f45fbb6e6abcb6c511951 days 12 hrs ago0x6cb117a635dc7633b42089c607fdfc5c60b7d679  IN   0x732e0abd062e6bbd7e2a83d345d24f780a2abb060 Ether0.0009212096
0xb1a1da0d1042aa97762b9898158502ff92bdfc387607932152b910c171dd70e656 days 11 hrs ago0x6cb117a635dc7633b42089c607fdfc5c60b7d679  IN   0x732e0abd062e6bbd7e2a83d345d24f780a2abb06110 Ether0.0014119434
0xa95015a14c3e2b1e4fa0d904646e3d5bd6156d30f78cc1d2192fcd8e94cacdf9123 days 14 hrs ago0x6cb117a635dc7633b42089c607fdfc5c60b7d679  IN   0x732e0abd062e6bbd7e2a83d345d24f780a2abb060 Ether0.0019377756
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 Internal Transactions as a result of Contract Execution
 Latest 8 Internal Transactions

ParentTxHash Block Age From To Value
0x8cb6929b5d853272373f3d25f33b713c159866f791d5d937466c99d808741f0e681943350 days 11 hrs ago0x732e0abd062e6bbd7e2a83d345d24f780a2abb060x6cb117a635dc7633b42089c607fdfc5c60b7d67917.12037037037037037 Ether
0x8cb6929b5d853272373f3d25f33b713c159866f791d5d937466c99d808741f0e681943350 days 11 hrs ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x732e0abd062e6bbd7e2a83d345d24f780a2abb0617.12037037037037037 Ether
0x9aa7f37be5164001969f73c20ed745fa16fb1386aee35f45fbb6e6abcb6c5119681315651 days 12 hrs ago0x732e0abd062e6bbd7e2a83d345d24f780a2abb060x6cb117a635dc7633b42089c607fdfc5c60b7d6791.265822784810126582 Ether
0x9aa7f37be5164001969f73c20ed745fa16fb1386aee35f45fbb6e6abcb6c5119681315651 days 12 hrs ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x732e0abd062e6bbd7e2a83d345d24f780a2abb061.265822784810126582 Ether
0xb1a1da0d1042aa97762b9898158502ff92bdfc387607932152b910c171dd70e6678325356 days 11 hrs ago0x732e0abd062e6bbd7e2a83d345d24f780a2abb060xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2110 Ether
0xa95015a14c3e2b1e4fa0d904646e3d5bd6156d30f78cc1d2192fcd8e94cacdf96372797123 days 14 hrs ago0x732e0abd062e6bbd7e2a83d345d24f780a2abb060x6cb117a635dc7633b42089c607fdfc5c60b7d6795.146453084680498548 Ether
0xa95015a14c3e2b1e4fa0d904646e3d5bd6156d30f78cc1d2192fcd8e94cacdf96372797123 days 14 hrs ago0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc20x732e0abd062e6bbd7e2a83d345d24f780a2abb065.146453084680498548 Ether
0xcd6fb6ee71f0373cc4695aa9172ec1a53257c7e1a8e32958fba81a47d0be323b6372764123 days 14 hrs ago0xa26e15c895efc0616177b7c1e7270a4c7d51c997  Contract Creation0 Ether
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Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), EventStructWrongData (very low-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Similar Match)
Note: Displaying Similar Match Verified Source Code At Contract 0x2b9b8b83c09e1d2bd3dace1c3db2fec8ff54a8ac(Excluding Constructor Arguments if any)
Contract Name: DSProxy
Compiler Text: v0.4.23+commit.124ca40d
Optimization Enabled: Yes
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

// proxy.sol - execute actions atomically through the proxy's identity

// Copyright (C) 2017  DappHub, LLC

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity ^0.4.23;

contract DSAuthority {
    function canCall(
        address src, address dst, bytes4 sig
    ) public view returns (bool);
}

contract DSAuthEvents {
    event LogSetAuthority (address indexed authority);
    event LogSetOwner     (address indexed owner);
}

contract DSAuth is DSAuthEvents {
    DSAuthority  public  authority;
    address      public  owner;

    constructor() public {
        owner = msg.sender;
        emit LogSetOwner(msg.sender);
    }

    function setOwner(address owner_)
        public
        auth
    {
        owner = owner_;
        emit LogSetOwner(owner);
    }

    function setAuthority(DSAuthority authority_)
        public
        auth
    {
        authority = authority_;
        emit LogSetAuthority(authority);
    }

    modifier auth {
        require(isAuthorized(msg.sender, msg.sig));
        _;
    }

    function isAuthorized(address src, bytes4 sig) internal view returns (bool) {
        if (src == address(this)) {
            return true;
        } else if (src == owner) {
            return true;
        } else if (authority == DSAuthority(0)) {
            return false;
        } else {
            return authority.canCall(src, this, sig);
        }
    }
}

contract DSNote {
    event LogNote(
        bytes4   indexed  sig,
        address  indexed  guy,
        bytes32  indexed  foo,
        bytes32  indexed  bar,
        uint              wad,
        bytes             fax
    ) anonymous;

    modifier note {
        bytes32 foo;
        bytes32 bar;

        assembly {
            foo := calldataload(4)
            bar := calldataload(36)
        }

        emit LogNote(msg.sig, msg.sender, foo, bar, msg.value, msg.data);

        _;
    }
}

// DSProxy
// Allows code execution using a persistant identity This can be very
// useful to execute a sequence of atomic actions. Since the owner of
// the proxy can be changed, this allows for dynamic ownership models
// i.e. a multisig
contract DSProxy is DSAuth, DSNote {
    DSProxyCache public cache;  // global cache for contracts

    constructor(address _cacheAddr) public {
        require(setCache(_cacheAddr));
    }

    function() public payable {
    }

    // use the proxy to execute calldata _data on contract _code
    function execute(bytes _code, bytes _data)
        public
        payable
        returns (address target, bytes32 response)
    {
        target = cache.read(_code);
        if (target == 0x0) {
            // deploy contract & store its address in cache
            target = cache.write(_code);
        }

        response = execute(target, _data);
    }

    function execute(address _target, bytes _data)
        public
        auth
        note
        payable
        returns (bytes32 response)
    {
        require(_target != 0x0);

        // call contract in current context
        assembly {
            let succeeded := delegatecall(sub(gas, 5000), _target, add(_data, 0x20), mload(_data), 0, 32)
            response := mload(0)      // load delegatecall output
            switch iszero(succeeded)
            case 1 {
                // throw if delegatecall failed
                revert(0, 0)
            }
        }
    }

    //set new cache
    function setCache(address _cacheAddr)
        public
        auth
        note
        returns (bool)
    {
        require(_cacheAddr != 0x0);        // invalid cache address
        cache = DSProxyCache(_cacheAddr);  // overwrite cache
        return true;
    }
}

// DSProxyFactory
// This factory deploys new proxy instances through build()
// Deployed proxy addresses are logged
contract DSProxyFactory {
    event Created(address indexed sender, address indexed owner, address proxy, address cache);
    mapping(address=>bool) public isProxy;
    DSProxyCache public cache = new DSProxyCache();

    // deploys a new proxy instance
    // sets owner of proxy to caller
    function build() public returns (DSProxy proxy) {
        proxy = build(msg.sender);
    }

    // deploys a new proxy instance
    // sets custom owner of proxy
    function build(address owner) public returns (DSProxy proxy) {
        proxy = new DSProxy(cache);
        emit Created(msg.sender, owner, address(proxy), address(cache));
        proxy.setOwner(owner);
        isProxy[proxy] = true;
    }
}

// DSProxyCache
// This global cache stores addresses of contracts previously deployed
// by a proxy. This saves gas from repeat deployment of the same
// contracts and eliminates blockchain bloat.

// By default, all proxies deployed from the same factory store
// contracts in the same cache. The cache a proxy instance uses can be
// changed.  The cache uses the sha3 hash of a contract's bytecode to
// lookup the address
contract DSProxyCache {
    mapping(bytes32 => address) cache;

    function read(bytes _code) public view returns (address) {
        bytes32 hash = keccak256(_code);
        return cache[hash];
    }

    function write(bytes _code) public returns (address target) {
        assembly {
            target := create(0, add(_code, 0x20), mload(_code))
            switch iszero(extcodesize(target))
            case 1 {
                // throw if contract failed to deploy
                revert(0, 0)
            }
        }
        bytes32 hash = keccak256(_code);
        cache[hash] = target;
    }
}

    Contract ABI  
[{"constant":false,"inputs":[{"name":"owner_","type":"address"}],"name":"setOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_target","type":"address"},{"name":"_data","type":"bytes"}],"name":"execute","outputs":[{"name":"response","type":"bytes32"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_code","type":"bytes"},{"name":"_data","type":"bytes"}],"name":"execute","outputs":[{"name":"target","type":"address"},{"name":"response","type":"bytes32"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"cache","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"authority_","type":"address"}],"name":"setAuthority","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_cacheAddr","type":"address"}],"name":"setCache","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"authority","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_cacheAddr","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":true,"inputs":[{"indexed":true,"name":"sig","type":"bytes4"},{"indexed":true,"name":"guy","type":"address"},{"indexed":true,"name":"foo","type":"bytes32"},{"indexed":true,"name":"bar","type":"bytes32"},{"indexed":false,"name":"wad","type":"uint256"},{"indexed":false,"name":"fax","type":"bytes"}],"name":"LogNote","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"authority","type":"address"}],"name":"LogSetAuthority","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"}],"name":"LogSetOwner","type":"event"}]

  Contract Creation Code Switch To Opcodes View
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   Swarm Source:
bzzr://e498874c9ba9e75028e0c84f1b1d83b2dad5de910c59b837b32e5a190794c5e1

 

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