ETH Price: $2,735.83 (-4.10%)
Gas: 1.14 Gwei

Contract

0xE9212B2Bcd02e3DB898378DaC8C02D1528214037
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Execute107549302020-08-29 9:49:461622 days ago1598694586IN
DSProxy #158,715
0 ETH0.01492448106
Execute107549242020-08-29 9:47:081622 days ago1598694428IN
DSProxy #158,715
0 ETH0.0176447109
Execute107549162020-08-29 9:45:151622 days ago1598694315IN
DSProxy #158,715
0 ETH0.0078311109
Execute106950862020-08-20 5:08:281632 days ago1597900108IN
DSProxy #158,715
5.28 ETH0.01376245102
Execute105906462020-08-04 2:34:231648 days ago1596508463IN
DSProxy #158,715
0 ETH0.0098551746
Execute105906192020-08-04 2:29:561648 days ago1596508196IN
DSProxy #158,715
25 ETH0.08490644
Execute105858052020-08-03 8:39:031649 days ago1596443943IN
DSProxy #158,715
0 ETH0.0077438355
Execute105857862020-08-03 8:35:211649 days ago1596443721IN
DSProxy #158,715
0 ETH0.0039514755
Execute105857792020-08-03 8:34:051649 days ago1596443645IN
DSProxy #158,715
0 ETH0.0090205251
Execute105787612020-08-02 6:31:071650 days ago1596349867IN
DSProxy #158,715
0 ETH0.027126144
Execute105785122020-08-02 5:38:211650 days ago1596346701IN
DSProxy #158,715
2.5 ETH0.02482638184
Execute105785002020-08-02 5:36:321650 days ago1596346592IN
DSProxy #158,715
0 ETH0.01291341174
Execute105783762020-08-02 5:09:581650 days ago1596344998IN
DSProxy #158,715
0 ETH0.01142911154
Execute105763842020-08-01 21:39:351650 days ago1596317975IN
DSProxy #158,715
0 ETH0.0039333953
Execute105749852020-08-01 16:32:121650 days ago1596299532IN
DSProxy #158,715
0 ETH0.0141400366
Execute105645202020-07-31 2:04:491652 days ago1596161089IN
DSProxy #158,715
0.00714 ETH0.0488971151
Execute105617062020-07-30 15:23:191652 days ago1596122599IN
DSProxy #158,715
0 ETH0.011299977
Execute105517842020-07-29 2:30:331654 days ago1595989833IN
DSProxy #158,715
0.00658 ETH0.062492844
Execute105346192020-07-26 10:47:381656 days ago1595760458IN
DSProxy #158,715
15 ETH0.0136385391
Execute105341622020-07-26 9:04:111657 days ago1595754251IN
DSProxy #158,715
0 ETH0.0097993468
Execute105233262020-07-24 16:38:381658 days ago1595608718IN
DSProxy #158,715
0 ETH0.0236540891
Execute105142492020-07-23 6:54:121660 days ago1595487252IN
DSProxy #158,715
0 ETH0.008055670
Execute105141662020-07-23 6:38:011660 days ago1595486281IN
DSProxy #158,715
0 ETH0.0089755269
Execute105132632020-07-23 3:18:411660 days ago1595474321IN
DSProxy #158,715
0 ETH0.0108999273
Execute105130312020-07-23 2:28:551660 days ago1595471335IN
DSProxy #158,715
0 ETH0.0083935865
View all transactions

Latest 25 internal transactions (View All)

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Parent Transaction Hash Block
From
To
107549302020-08-29 9:49:461622 days ago1598694586
DSProxy #158,715
60.00908364 ETH
107549302020-08-29 9:49:461622 days ago1598694586
DSProxy #158,715
60.00908364 ETH
106950862020-08-20 5:08:281632 days ago1597900108
DSProxy #158,715
5.28 ETH
106604492020-08-14 20:57:301637 days ago1597438650
DSProxy #158,715
4.47839436 ETH
106604492020-08-14 20:57:301637 days ago1597438650
DSProxy #158,715
4.47839436 ETH
105906192020-08-04 2:29:561648 days ago1596508196
DSProxy #158,715
25 ETH
105858052020-08-03 8:39:031649 days ago1596443943
DSProxy #158,715
42.1479844 ETH
105858052020-08-03 8:39:031649 days ago1596443943
DSProxy #158,715
42.1479844 ETH
105785122020-08-02 5:38:211650 days ago1596346701
DSProxy #158,715
2.5 ETH
105749912020-08-01 16:33:011650 days ago1596299581
DSProxy #158,715
3.70912323 ETH
105749912020-08-01 16:33:011650 days ago1596299581
DSProxy #158,715
3.70912323 ETH
105645202020-07-31 2:04:491652 days ago1596161089
DSProxy #158,715
7.73459775 ETH
105645202020-07-31 2:04:491652 days ago1596161089
DSProxy #158,715
7.73102775 ETH
105645202020-07-31 2:04:491652 days ago1596161089
DSProxy #158,715
0.00357 ETH
105645202020-07-31 2:04:491652 days ago1596161089
DSProxy #158,715
0.00714 ETH
105517842020-07-29 2:30:331654 days ago1595989833
DSProxy #158,715
0.00658 ETH
105517842020-07-29 2:30:331654 days ago1595989833
DSProxy #158,715
6.47227209 ETH
105517842020-07-29 2:30:331654 days ago1595989833
DSProxy #158,715
6.47227209 ETH
105346192020-07-26 10:47:381656 days ago1595760458
DSProxy #158,715
15 ETH
104379532020-07-11 11:22:071671 days ago1594466527
DSProxy #158,715
40.83760588 ETH
104379532020-07-11 11:22:071671 days ago1594466527
DSProxy #158,715
40.83760588 ETH
102076242020-06-05 19:30:091707 days ago1591385409
DSProxy #158,715
4.60692532 ETH
102076242020-06-05 19:30:091707 days ago1591385409
DSProxy #158,715
4.60692532 ETH
102076152020-06-05 19:28:421707 days ago1591385322
DSProxy #158,715
6.42 ETH
101926222020-06-03 11:44:561709 days ago1591184696
DSProxy #158,715
7.55964775 ETH
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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

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OVERVIEW

The proxy contract address for 0xcf388621a1a0e2bd57902a74edb2eed05b7f0e15.

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