MATIC Price: $0.539202 (+0.53%)
Gas: 30.9 GWei
 

Overview

MATIC Balance

Polygon PoS Chain LogoPolygon PoS Chain LogoPolygon PoS Chain Logo0 MATIC

MATIC Value

$0.00

Token Holdings

Transaction Hash
Method
Block
From
To
Approve596657932024-07-22 9:40:2316 mins ago1721641223IN
Uniswap Protocol: UNI Token
0 MATIC0.0031207260.00000005
Approve596649552024-07-22 9:09:0548 mins ago1721639345IN
Uniswap Protocol: UNI Token
0 MATIC0.0016308131.50000009
Approve596625562024-07-22 7:38:142 hrs ago1721633894IN
Uniswap Protocol: UNI Token
0 MATIC0.0023546845.21986626
Approve596623952024-07-22 7:32:002 hrs ago1721633520IN
Uniswap Protocol: UNI Token
0 MATIC0.0008936430.00002021
Approve596605362024-07-22 6:21:313 hrs ago1721629291IN
Uniswap Protocol: UNI Token
0 MATIC0.0016304431.5000001
Approve596597422024-07-22 5:51:454 hrs ago1721627505IN
Uniswap Protocol: UNI Token
0 MATIC0.0016308131.50000007
Approve596593452024-07-22 5:37:434 hrs ago1721626663IN
Uniswap Protocol: UNI Token
0 MATIC0.0015652830.06000004
Approve596572862024-07-22 4:24:475 hrs ago1721622287IN
Uniswap Protocol: UNI Token
0 MATIC0.0016308131.50002445
Approve596572382024-07-22 4:23:055 hrs ago1721622185IN
Uniswap Protocol: UNI Token
0 MATIC0.0008936430.00004517
Approve596564422024-07-22 3:54:536 hrs ago1721620493IN
Uniswap Protocol: UNI Token
0 MATIC0.0015578730.08418195
Approve596563822024-07-22 3:52:456 hrs ago1721620365IN
Uniswap Protocol: UNI Token
0 MATIC0.0016402331.68929402
Approve596556182024-07-22 3:25:316 hrs ago1721618731IN
Uniswap Protocol: UNI Token
0 MATIC0.0016535331.93886173
Approve596548112024-07-22 2:56:557 hrs ago1721617015IN
Uniswap Protocol: UNI Token
0 MATIC0.0016090230.9
Transfer596547482024-07-22 2:54:417 hrs ago1721616881IN
Uniswap Protocol: UNI Token
0 MATIC0.00201150
Transfer596547392024-07-22 2:54:237 hrs ago1721616863IN
Uniswap Protocol: UNI Token
0 MATIC0.00201150
Transfer596547122024-07-22 2:53:257 hrs ago1721616805IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596547022024-07-22 2:53:037 hrs ago1721616783IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596546952024-07-22 2:52:497 hrs ago1721616769IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596546852024-07-22 2:52:277 hrs ago1721616747IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596546732024-07-22 2:52:037 hrs ago1721616723IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Approve596545922024-07-22 2:49:117 hrs ago1721616551IN
Uniswap Protocol: UNI Token
0 MATIC0.0023697945.77372559
Transfer596545802024-07-22 2:48:457 hrs ago1721616525IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596545702024-07-22 2:48:237 hrs ago1721616503IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596545632024-07-22 2:48:097 hrs ago1721616489IN
Uniswap Protocol: UNI Token
0 MATIC0.002010450
Transfer596545572024-07-22 2:47:557 hrs ago1721616475IN
Uniswap Protocol: UNI Token
0 MATIC0.0022570356.13409593
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Latest 25 internal transactions (View All)

Parent Transaction Hash Block From To
507815602023-12-05 19:25:23229 days ago1701804323
Uniswap Protocol: UNI Token
0.00509963 MATIC
462995122023-08-14 14:41:34342 days ago1692024094
Uniswap Protocol: UNI Token
0.00328571 MATIC
352464752022-11-05 21:20:05624 days ago1667683205
Uniswap Protocol: UNI Token
0.00015547 MATIC
352461172022-11-05 21:07:45624 days ago1667682465
Uniswap Protocol: UNI Token
0.00014858 MATIC
307855212022-07-16 11:32:31736 days ago1657971151
Uniswap Protocol: UNI Token
0.00012197 MATIC
290209552022-06-01 5:22:22782 days ago1654060942
Uniswap Protocol: UNI Token
0.00010486 MATIC
273576292022-04-20 9:51:42824 days ago1650448302
Uniswap Protocol: UNI Token
0.00003727 MATIC
250294412022-02-17 0:51:23886 days ago1645059083
Uniswap Protocol: UNI Token
0.000037 MATIC
247241142022-02-09 5:56:17894 days ago1644386177
Uniswap Protocol: UNI Token
0.00000037 MATIC
242950232022-01-29 7:01:38905 days ago1643439698
Uniswap Protocol: UNI Token
0.00000018 MATIC
242948072022-01-29 6:48:54905 days ago1643438934
Uniswap Protocol: UNI Token
0.00000011 MATIC
242946782022-01-29 6:44:28905 days ago1643438668
Uniswap Protocol: UNI Token
0.00000002 MATIC
173133872021-07-27 6:14:551091 days ago1627366495
Uniswap Protocol: UNI Token
23.75155506 MATIC
172321332021-07-24 22:03:191093 days ago1627164199
Uniswap Protocol: UNI Token
23.67182671 MATIC
172128792021-07-24 9:20:291094 days ago1627118429
Uniswap Protocol: UNI Token
23.67182671 MATIC
172126932021-07-24 9:11:571094 days ago1627117917
Uniswap Protocol: UNI Token
23.67182671 MATIC
172125862021-07-24 9:08:151094 days ago1627117695
Uniswap Protocol: UNI Token
23.67182671 MATIC
172124792021-07-24 9:04:331094 days ago1627117473
Uniswap Protocol: UNI Token
23.67182671 MATIC
172120912021-07-24 8:49:051094 days ago1627116545
Uniswap Protocol: UNI Token
23.67182671 MATIC
168060902021-07-13 5:42:451105 days ago1626154965
Uniswap Protocol: UNI Token
23.67182671 MATIC
167095842021-07-10 14:08:561107 days ago1625926136
Uniswap Protocol: UNI Token
23.55649749 MATIC
167094632021-07-10 14:03:261107 days ago1625925806
Uniswap Protocol: UNI Token
23.55649749 MATIC
166619022021-07-09 5:20:101109 days ago1625808010
Uniswap Protocol: UNI Token
23.53507232 MATIC
166396102021-07-08 12:02:361109 days ago1625745756
Uniswap Protocol: UNI Token
23.53507232 MATIC
166381682021-07-08 10:53:521109 days ago1625741632
Uniswap Protocol: UNI Token
23.4848057 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
UChildERC20Proxy

Compiler Version
v0.6.6+commit.6c089d02

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, None license
/**
 *Submitted for verification at polygonscan.com on 2021-06-30
*/

// File: contracts/common/Proxy/IERCProxy.sol

pragma solidity 0.6.6;

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

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

// File: contracts/common/Proxy/Proxy.sol

pragma solidity 0.6.6;


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

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

// File: contracts/common/Proxy/UpgradableProxy.sol

pragma solidity 0.6.6;


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 override view 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) payable public 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;
    }
}

// File: contracts/child/ChildToken/UpgradeableChildERC20/UChildERC20Proxy.sol

pragma solidity 0.6.6;


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

00000000000000000000000055ffbee7323cc4647e294f5f1e72a3cc978da5db

-----Decoded View---------------
Arg [0] : _proxyTo (address): 0x55FFBeE7323CC4647E294f5f1e72A3cC978dA5dB

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000055ffbee7323cc4647e294f5f1e72a3cc978da5db


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.