ETH Price: $3,573.07 (+1.42%)
Gas: 52 Gwei

Contract

0x42a587B017fb534b4B9333A0201363b754e470e2
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Value
Execute80274122019-06-25 13:37:261738 days ago1561469846IN
DSProxy #3,228
0 ETH0.006151631
Execute80274062019-06-25 13:36:171738 days ago1561469777IN
DSProxy #3,228
0 ETH0.0075385627
Execute80273912019-06-25 13:32:531738 days ago1561469573IN
DSProxy #3,228
0 ETH0.0169317333
Execute80273792019-06-25 13:30:571738 days ago1561469457IN
DSProxy #3,228
0 ETH0.0224284946
Execute80273462019-06-25 13:23:131738 days ago1561468993IN
DSProxy #3,228
0 ETH0.0126771526
Execute80272712019-06-25 13:06:141738 days ago1561467974IN
DSProxy #3,228
0 ETH0.0090252929
Execute80272192019-06-25 12:55:171738 days ago1561467317IN
DSProxy #3,228
0 ETH0.0051546224
Execute80271502019-06-25 12:38:261738 days ago1561466306IN
DSProxy #3,228
0 ETH0.0074437924
Execute80269292019-06-25 11:43:401738 days ago1561463020IN
DSProxy #3,228
0 ETH0.0084990626
Execute80267572019-06-25 11:04:451738 days ago1561460685IN
DSProxy #3,228
0 ETH0.0077728525
Execute80267372019-06-25 11:01:411738 days ago1561460501IN
DSProxy #3,228
0 ETH0.0096593527
Execute80265212019-06-25 10:15:251738 days ago1561457725IN
DSProxy #3,228
0 ETH0.0074541624
Execute80265182019-06-25 10:14:121738 days ago1561457652IN
DSProxy #3,228
0 ETH0.0051437524
Execute80265152019-06-25 10:12:401738 days ago1561457560IN
DSProxy #3,228
0 ETH0.0090535329
Execute80262862019-06-25 9:21:481738 days ago1561454508IN
DSProxy #3,228
0 ETH0.0074955323
Execute80262792019-06-25 9:20:231738 days ago1561454423IN
DSProxy #3,228
0 ETH0.007812624
Execute80137222019-06-23 10:27:081740 days ago1561285628IN
DSProxy #3,228
0 ETH0.001550795
Execute80137192019-06-23 10:26:281740 days ago1561285588IN
DSProxy #3,228
0 ETH0.002481098
Execute80083732019-06-22 14:12:231741 days ago1561212743IN
DSProxy #3,228
0 ETH0.0040407613
Execute80083702019-06-22 14:11:231741 days ago1561212683IN
DSProxy #3,228
0 ETH0.002804169
Execute80077842019-06-22 12:10:311741 days ago1561205431IN
DSProxy #3,228
0 ETH0.00124214
Execute80077812019-06-22 12:09:221741 days ago1561205362IN
DSProxy #3,228
0 ETH0.003204129
Execute80014472019-06-21 12:23:221742 days ago1561119802IN
DSProxy #3,228
0 ETH0.0037300612
Execute80014412019-06-21 12:21:441742 days ago1561119704IN
DSProxy #3,228
0 ETH0.00522916
Execute79941752019-06-20 9:07:421743 days ago1561021662IN
DSProxy #3,228
0 ETH0.006836822
View all transactions

Latest 25 internal transactions (View All)

Advanced mode:
Parent Txn Hash Block From To Value
80274122019-06-25 13:37:261738 days ago1561469846
DSProxy #3,228
15,718.11124507 ETH
80274122019-06-25 13:37:261738 days ago1561469846
DSProxy #3,228
15,718.11124507 ETH
80272192019-06-25 12:55:171738 days ago1561467317
DSProxy #3,228
12,000 ETH
80272192019-06-25 12:55:171738 days ago1561467317
DSProxy #3,228
12,000 ETH
80265182019-06-25 10:14:121738 days ago1561457652
DSProxy #3,228
15,000 ETH
80265182019-06-25 10:14:121738 days ago1561457652
DSProxy #3,228
15,000 ETH
79940412019-06-20 8:41:531743 days ago1561020113
DSProxy #3,228
7,500 ETH
79940412019-06-20 8:41:531743 days ago1561020113
DSProxy #3,228
7,500 ETH
79753852019-06-17 10:25:291746 days ago1560767129
DSProxy #3,228
5,000 ETH
79753852019-06-17 10:25:291746 days ago1560767129
DSProxy #3,228
5,000 ETH
78470772019-05-28 8:54:511766 days ago1559033691
DSProxy #3,228
8,000 ETH
78470772019-05-28 8:54:511766 days ago1559033691
DSProxy #3,228
8,000 ETH
78470592019-05-28 8:52:281766 days ago1559033548
DSProxy #3,228
50 ETH
78410282019-05-27 9:58:351767 days ago1558951115
DSProxy #3,228
8,000 ETH
78410282019-05-27 9:58:351767 days ago1558951115
DSProxy #3,228
8,000 ETH
78291512019-05-25 13:50:091769 days ago1558792209
DSProxy #3,228
5,000 ETH
78291512019-05-25 13:50:091769 days ago1558792209
DSProxy #3,228
5,000 ETH
78233702019-05-24 16:13:431770 days ago1558714423
DSProxy #3,228
7,084 ETH
78025062019-05-21 9:42:141773 days ago1558431734
DSProxy #3,228
5,000 ETH
78025062019-05-21 9:42:141773 days ago1558431734
DSProxy #3,228
5,000 ETH
77960522019-05-20 9:26:221774 days ago1558344382
DSProxy #3,228
12,500 ETH
77960522019-05-20 9:26:221774 days ago1558344382
DSProxy #3,228
12,500 ETH
77718522019-05-16 14:37:031778 days ago1558017423
DSProxy #3,228
6,000 ETH
77718522019-05-16 14:37:031778 days ago1558017423
DSProxy #3,228
6,000 ETH
77714542019-05-16 13:05:261778 days ago1558011926
DSProxy #3,228
13,999.99999999 ETH
View All Internal Transactions
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x2B9B8b83...8ff54a8AC
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
DSProxy

Compiler Version
v0.4.23+commit.124ca40d

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-09-06
*/

// 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 Security Audit

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"}]

Deployed Bytecode

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

Swarm Source

bzzr://e498874c9ba9e75028e0c84f1b1d83b2dad5de910c59b837b32e5a190794c5e1

Block Transaction Difficulty Gas Used Reward
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OVERVIEW

The proxy contract address for 0x0849f0eb50a758dc837e9013b3c18610e9530089.

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