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Contract

0x529C553eF2d0370279DC8AbF19702B98b166D252

Overview

ETH Balance

0 ETH

Sponsored

Transaction Hash
Method
Block
From
To
Value
Set Target51043892023-12-08 4:55:18198 days ago1702011318IN
0x529C553e...8b166D252
0 ETH0.000094132.00000013
0x6080604051041172023-12-08 4:46:14198 days ago1702010774IN
 Create: ReadProxy
0 ETH0.000560092.00000013

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Contract Source Code Verified (Exact Match)

Contract Name:
ReadProxy

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at sepolia-optimm.etherscan.io on 2023-12-11
*/

/*
   ____            __   __        __   _
  / __/__ __ ___  / /_ / /  ___  / /_ (_)__ __
 _\ \ / // // _ \/ __// _ \/ -_)/ __// / \ \ /
/___/ \_, //_//_/\__//_//_/\__/ \__//_/ /_\_\
     /___/

* Synthetix: ReadProxy.sol
*
* Latest source (may be newer): https://github.com/Synthetixio/synthetix/blob/master/contracts/ReadProxy.sol
* Docs: https://docs.synthetix.io/contracts/ReadProxy
*
* Contract Dependencies: 
*	- Owned
* Libraries: (none)
*
* MIT License
* ===========
*
* Copyright (c) 2023 Synthetix
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/



pragma solidity ^0.5.16;

// https://docs.synthetix.io/contracts/source/contracts/owned
contract Owned {
    address public owner;
    address public nominatedOwner;

    constructor(address _owner) public {
        require(_owner != address(0), "Owner address cannot be 0");
        owner = _owner;
        emit OwnerChanged(address(0), _owner);
    }

    function nominateNewOwner(address _owner) external onlyOwner {
        nominatedOwner = _owner;
        emit OwnerNominated(_owner);
    }

    function acceptOwnership() external {
        require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership");
        emit OwnerChanged(owner, nominatedOwner);
        owner = nominatedOwner;
        nominatedOwner = address(0);
    }

    modifier onlyOwner {
        _onlyOwner();
        _;
    }

    function _onlyOwner() private view {
        require(msg.sender == owner, "Only the contract owner may perform this action");
    }

    event OwnerNominated(address newOwner);
    event OwnerChanged(address oldOwner, address newOwner);
}


// solhint-disable payable-fallback

// https://docs.synthetix.io/contracts/source/contracts/readproxy
contract ReadProxy is Owned {
    address public target;

    constructor(address _owner) public Owned(_owner) {}

    function setTarget(address _target) external onlyOwner {
        target = _target;
        emit TargetUpdated(target);
    }

    function() external {
        // The basics of a proxy read call
        // Note that msg.sender in the underlying will always be the address of this contract.
        assembly {
            calldatacopy(0, 0, calldatasize)

            // Use of staticcall - this will revert if the underlying function mutates state
            let result := staticcall(gas, sload(target_slot), 0, calldatasize, 0, 0)
            returndatacopy(0, 0, returndatasize)

            if iszero(result) {
                revert(0, returndatasize)
            }
            return(0, returndatasize)
        }
    }

    event TargetUpdated(address newTarget);
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerNominated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newTarget","type":"address"}],"name":"TargetUpdated","type":"event"},{"payable":false,"stateMutability":"nonpayable","type":"fallback"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"nominateNewOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"nominatedOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_target","type":"address"}],"name":"setTarget","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"target","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]

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Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

00000000000000000000000048914229dedd5a9922f44441ffccfc2cb7856ee9

-----Decoded View---------------
Arg [0] : _owner (address): 0x48914229deDd5A9922f44441ffCCfC2Cb7856Ee9

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000048914229dedd5a9922f44441ffccfc2cb7856ee9


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