ETH Price: $3,113.43 (-1.41%)

Contract

0xf4e9b54cF859B2b73721Df4534Fa8Ab14F137D21
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Token Holdings

Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Execute69211302018-12-20 14:06:282161 days ago1545314788IN
DSProxy #1,801
0 ETH0.000150953
Execute69211302018-12-20 14:06:282161 days ago1545314788IN
DSProxy #1,801
0 ETH0.000661243
Execute69211182018-12-20 14:02:362161 days ago1545314556IN
DSProxy #1,801
0 ETH0.000553793
Execute69210352018-12-20 13:43:232161 days ago1545313403IN
DSProxy #1,801
0 ETH0.000994535
Execute69209952018-12-20 13:34:102161 days ago1545312850IN
DSProxy #1,801
0 ETH0.001189416
Execute69209352018-12-20 13:16:112161 days ago1545311771IN
DSProxy #1,801
0 ETH0.000799824
Execute69208772018-12-20 13:02:062161 days ago1545310926IN
DSProxy #1,801
0.13 ETH0.000792385
Execute69208692018-12-20 13:00:182161 days ago1545310818IN
DSProxy #1,801
0.1 ETH0.000792385
Execute69208632018-12-20 12:59:072161 days ago1545310747IN
DSProxy #1,801
0.2 ETH0.000792385
Execute69208572018-12-20 12:56:242161 days ago1545310584IN
DSProxy #1,801
0.2 ETH0.000792385
Execute69208322018-12-20 12:49:312161 days ago1545310171IN
DSProxy #1,801
0.1 ETH0.000475433
Execute69204932018-12-20 11:32:182161 days ago1545305538IN
DSProxy #1,801
0 ETH0.001779567
Execute69203592018-12-20 10:56:102161 days ago1545303370IN
DSProxy #1,801
0 ETH0.001564929
Execute68436852018-12-07 16:51:092174 days ago1544201469IN
DSProxy #1,801
0.3 ETH0.00063394
Execute68411092018-12-07 6:27:222174 days ago1544164042IN
DSProxy #1,801
0.3 ETH0.000792385
Execute68360412018-12-06 10:17:102175 days ago1544091430IN
DSProxy #1,801
0.15 ETH0.000950866
Execute67771712018-11-26 16:35:392185 days ago1543250139IN
DSProxy #1,801
0.2 ETH0.00063394
Execute67770032018-11-26 15:56:052185 days ago1543247765IN
DSProxy #1,801
0.1 ETH0.00063394
Execute67704452018-11-25 14:09:232186 days ago1543154963IN
DSProxy #1,801
0.2 ETH0.000950866
Execute67452252018-11-21 11:07:522190 days ago1542798472IN
DSProxy #1,801
0.1 ETH0.00063394
Execute67339372018-11-19 14:14:432192 days ago1542636883IN
DSProxy #1,801
0.3 ETH0.0017432411
Execute67338712018-11-19 13:58:062192 days ago1542635886IN
DSProxy #1,801
0.15 ETH0.0025459212

Latest 21 internal transactions

Advanced mode:
Parent Transaction Hash Block From To
69211302018-12-20 14:06:282161 days ago1545314788
DSProxy #1,801
2.55467437 ETH
69211302018-12-20 14:06:282161 days ago1545314788
DSProxy #1,801
2.55467437 ETH
69210352018-12-20 13:43:232161 days ago1545313403
DSProxy #1,801
1 ETH
69210352018-12-20 13:43:232161 days ago1545313403
DSProxy #1,801
1 ETH
69209352018-12-20 13:16:112161 days ago1545311771
DSProxy #1,801
1 ETH
69209352018-12-20 13:16:112161 days ago1545311771
DSProxy #1,801
1 ETH
69208772018-12-20 13:02:062161 days ago1545310926
DSProxy #1,801
0.13 ETH
69208692018-12-20 13:00:182161 days ago1545310818
DSProxy #1,801
0.1 ETH
69208632018-12-20 12:59:072161 days ago1545310747
DSProxy #1,801
0.2 ETH
69208572018-12-20 12:56:242161 days ago1545310584
DSProxy #1,801
0.2 ETH
69208322018-12-20 12:49:312161 days ago1545310171
DSProxy #1,801
0.1 ETH
68436852018-12-07 16:51:092174 days ago1544201469
DSProxy #1,801
0.3 ETH
68411092018-12-07 6:27:222174 days ago1544164042
DSProxy #1,801
0.3 ETH
68360412018-12-06 10:17:102175 days ago1544091430
DSProxy #1,801
0.15 ETH
67771712018-11-26 16:35:392185 days ago1543250139
DSProxy #1,801
0.2 ETH
67770032018-11-26 15:56:052185 days ago1543247765
DSProxy #1,801
0.1 ETH
67704452018-11-25 14:09:232186 days ago1543154963
DSProxy #1,801
0.2 ETH
67452252018-11-21 11:07:522190 days ago1542798472
DSProxy #1,801
0.1 ETH
67339372018-11-19 14:14:432192 days ago1542636883
DSProxy #1,801
0.3 ETH
67338712018-11-19 13:58:062192 days ago1542635886
DSProxy #1,801
0.15 ETH
67338492018-11-19 13:51:212192 days ago1542635481  Contract Creation0 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 0x7924835cf586265465120e4fc1fac72d6f79cb1d.

Validator Index Block Amount
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