Contract 0x8cF6E27d05957B4415f5f674C5A2dC0c6e5f7666

User Proxy Contracts 
 
 
Txn Hash
Method
Block
From
To
Value
0xae5e3968badcd4cc0cdd45a37f208a5a62e895693c07d268b52046f794965d27Execute111472152020-10-28 20:00:49765 days 2 hrs ago0x68317c176c305b2c1cc9e6893c383a6f58c54b52 IN  DSProxy #183,7810 Ether0.0077291244
0x3bef9ba8ee66f9fc247c4a3c60408056045cc7e31af2cc57c1abe1be11afb839Execute111472022020-10-28 19:57:13765 days 2 hrs ago0x68317c176c305b2c1cc9e6893c383a6f58c54b52 IN  DSProxy #183,7810 Ether0.2257122423.6
0x22efb559e5a19a4701d15abff681109edeb2bbfca156bbc08e92605d6fc5d164Execute111471142020-10-28 19:38:51765 days 2 hrs ago0x68317c176c305b2c1cc9e6893c383a6f58c54b52 IN  DSProxy #183,7810 Ether0.2690467428.131
0x75542f4ff5d2fd488181735a9d7114c6a04677edc82da9ca893201ac680119b2Execute111465062020-10-28 17:22:19765 days 4 hrs ago0x68317c176c305b2c1cc9e6893c383a6f58c54b52 IN  DSProxy #183,7810 Ether0.0059729134
0xb68630f7ac3554f5c939c76ebccc2b75ef0b615026d84bd6fcdaacf75f398003Execute111462472020-10-28 16:29:23765 days 5 hrs ago0x68317c176c305b2c1cc9e6893c383a6f58c54b52 IN  DSProxy #183,7810 Ether0.5260236355
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OVERVIEW

The proxy contract address for 0x68317c176c305b2c1cc9e6893c383a6f58c54b52.

Latest 1 internal transaction
Parent Txn Hash Block From To Value
0x3c32a6bf238dea8ca7cef9c3ad1101453d5976d2ef563a46d0c409eac57e6438110306272020-10-10 23:05:50782 days 23 hrs ago Maker: DS Proxy Factory  Contract Creation0 Ether
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.

Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x2b9b8b83c09e1d2bd3dace1c3db2fec8ff54a8ac

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

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Swarm Source

bzzr://e498874c9ba9e75028e0c84f1b1d83b2dad5de910c59b837b32e5a190794c5e1
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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