MATIC Price: $0.724283 (-0.58%)
Gas: 30 GWei
 

Overview

Max Total Supply

313,248.505832518417324822 PVI

Holders

279

Market

Price

$0.00 @ 0.000000 MATIC

Onchain Market Cap

$0.00

Circulating Supply Market Cap

-

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
PolyNetwork Exploiter
Balance
0.05 PVI

Value
$0.00
0x5dc3603c9d42ff184153a8a9094a73d461663214
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xd78C4751...F03C1E660
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
UChildERC20Proxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 999999 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at polygonscan.com on 2021-06-09
*/

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IERCProxy {
    function proxyType() external pure returns (uint256 proxyTypeId);

    function implementation() external view returns (address codeAddr);
}

abstract contract Proxy is IERCProxy {
    function delegatedFwd(address _dst, bytes memory _calldata) internal {
        // solium-disable-next-line security/no-inline-assembly
        assembly {
            let result := delegatecall(sub(gas(), 10000), _dst, add(_calldata, 0x20), mload(_calldata), 0, 0)
            let size := returndatasize()

            let ptr := mload(0x40)
            returndatacopy(ptr, 0, size)

            // revert instead of invalid() bc if the underlying call failed with invalid() it already wasted gas.
            // if the call returned error data, forward it
            switch result
                case 0 {
                    revert(ptr, size)
                }
                default {
                    return(ptr, size)
                }
        }
    }

    function proxyType() external pure virtual override returns (uint256 proxyTypeId) {
        // Upgradeable proxy
        proxyTypeId = 2;
    }

    function implementation() external view virtual override returns (address);
}

contract UpgradableProxy is Proxy {
    event ProxyUpdated(address indexed _new, address indexed _old);
    event ProxyOwnerUpdate(address _new, address _old);

    bytes32 constant IMPLEMENTATION_SLOT = keccak256("matic.network.proxy.implementation");
    bytes32 constant OWNER_SLOT = keccak256("matic.network.proxy.owner");

    constructor(address _proxyTo) public {
        setProxyOwner(msg.sender);
        setImplementation(_proxyTo);
    }

    fallback() external payable {
        delegatedFwd(loadImplementation(), msg.data);
    }

    receive() external payable {
        delegatedFwd(loadImplementation(), msg.data);
    }

    modifier onlyProxyOwner() {
        require(loadProxyOwner() == msg.sender, "NOT_OWNER");
        _;
    }

    function proxyOwner() external view returns (address) {
        return loadProxyOwner();
    }

    function loadProxyOwner() internal view returns (address) {
        address _owner;
        bytes32 position = OWNER_SLOT;
        assembly {
            _owner := sload(position)
        }
        return _owner;
    }

    function implementation() external view override returns (address) {
        return loadImplementation();
    }

    function loadImplementation() internal view returns (address) {
        address _impl;
        bytes32 position = IMPLEMENTATION_SLOT;
        assembly {
            _impl := sload(position)
        }
        return _impl;
    }

    function transferProxyOwnership(address newOwner) public onlyProxyOwner {
        require(newOwner != address(0), "ZERO_ADDRESS");
        emit ProxyOwnerUpdate(newOwner, loadProxyOwner());
        setProxyOwner(newOwner);
    }

    function setProxyOwner(address newOwner) private {
        bytes32 position = OWNER_SLOT;
        assembly {
            sstore(position, newOwner)
        }
    }

    function updateImplementation(address _newProxyTo) public onlyProxyOwner {
        require(_newProxyTo != address(0x0), "INVALID_PROXY_ADDRESS");
        require(isContract(_newProxyTo), "DESTINATION_ADDRESS_IS_NOT_A_CONTRACT");

        emit ProxyUpdated(_newProxyTo, loadImplementation());

        setImplementation(_newProxyTo);
    }

    function updateAndCall(address _newProxyTo, bytes memory data) public payable onlyProxyOwner {
        updateImplementation(_newProxyTo);

        (bool success, bytes memory returnData) = address(this).call{value: msg.value}(data);
        require(success, string(returnData));
    }

    function setImplementation(address _newProxyTo) private {
        bytes32 position = IMPLEMENTATION_SLOT;
        assembly {
            sstore(position, _newProxyTo)
        }
    }

    function isContract(address _target) internal view returns (bool) {
        if (_target == address(0)) {
            return false;
        }

        uint256 size;
        assembly {
            size := extcodesize(_target)
        }
        return size > 0;
    }
}

contract UChildERC20Proxy is UpgradableProxy {
    constructor(address _proxyTo) public UpgradableProxy(_proxyTo) {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_proxyTo","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_new","type":"address"},{"indexed":false,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyOwnerUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_new","type":"address"},{"indexed":true,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyUpdated","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyType","outputs":[{"internalType":"uint256","name":"proxyTypeId","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"updateAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"}],"name":"updateImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Deployed Bytecode

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Deployed Bytecode Sourcemap

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Swarm Source

ipfs://54aed2986e65ee6a1e23898d19057ebde745583731d9304c327328db1e00475c
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