Contract Address Details

0x271293c67E2D3140a0E9381EfF1F9b01E07B0795

Contract Name: DSProxyCache

Creator: 0xa26e15–51c997 at 0x0463c8–a602e5

Balance: 0 PLS ( )

Tokens: Fetching tokens... Error trying to fetch balances.

Transactions: 86 Transactions

Transfers: 5 Transfers

Gas Used: 101,054,962

Last Balance Update: 26347944

Transactions Token Transfers Tokens Internal Transactions Coin Balance History Code Read Contract Write Contract

This contract has been partially verified via Sourcify. View contract in Sourcify repository

Contract name:: DSProxyCache
Optimization enabled: true

Compiler version: v0.4.23+commit.124ca40d
Optimization runs: 200

EVM Version: byzantium
Verified at: 2026-04-22T08:30:35.340971Z

DSProxyCache.sol

// 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;

// 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;
    }
}

Compiler Settings

{"remappings":[],"optimizer":{"runs":200,"enabled":true},"libraries":{},"evmVersion":"byzantium","compilationTarget":{"DSProxyCache.sol":"DSProxyCache"}}

Contract ABI

[{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"address","name":"target"}],"name":"write","inputs":[{"type":"bytes","name":"_code"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"read","inputs":[{"type":"bytes","name":"_code"}],"constant":true}]

Contract Creation Code

Verify & Publish

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Deployed ByteCode

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