MATIC Price: $0.575534 (-0.27%)
Gas: 33 GWei
 

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MATIC Value

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Telcoin (TEL) (@$0.0023)
Transaction Hash
Method
Block
From
To
Value
Transfer584068072024-06-20 22:58:5913 secs ago1718924339IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014461936.00000004
Approve584065272024-06-20 22:48:3110 mins ago1718923711IN
0xdF7837DE...30F1dcc32
0 MATIC0.01046647201
Transfer584059062024-06-20 22:25:2933 mins ago1718922329IN
0xdF7837DE...30F1dcc32
0 MATIC0.0012819431.91144233
Transfer584044952024-06-20 21:32:171 hr ago1718919137IN
0xdF7837DE...30F1dcc32
0 MATIC0.0012051630.00000002
Approve584042352024-06-20 21:22:331 hr ago1718918553IN
0xdF7837DE...30F1dcc32
0 MATIC0.0015517230.00000002
Approve584041362024-06-20 21:19:031 hr ago1718918343IN
0xdF7837DE...30F1dcc32
0 MATIC0.0015621630.00000002
Transfer584041162024-06-20 21:18:211 hr ago1718918301IN
0xdF7837DE...30F1dcc32
0 MATIC0.0017181630.00000002
Approve584036432024-06-20 21:00:311 hr ago1718917231IN
0xdF7837DE...30F1dcc32
0 MATIC0.0015621630.00000002
Approve584031532024-06-20 20:42:392 hrs ago1718916159IN
0xdF7837DE...30F1dcc32
0 MATIC0.0011460936.00000003
Approve584027962024-06-20 20:28:552 hrs ago1718915335IN
0xdF7837DE...30F1dcc32
0 MATIC0.0010418430.07973337
Transfer584024122024-06-20 20:14:472 hrs ago1718914487IN
0xdF7837DE...30F1dcc32
0 MATIC0.0018942336.1
Transfer584002142024-06-20 18:53:134 hrs ago1718909593IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014461936.00000003
Transfer584002112024-06-20 18:53:074 hrs ago1718909587IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014461936.00000003
Transfer583999262024-06-20 18:43:014 hrs ago1718908981IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014461936.00000003
Transfer583997102024-06-20 18:35:214 hrs ago1718908521IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014461936.00000003
Transfer583987352024-06-20 18:00:494 hrs ago1718906449IN
0xdF7837DE...30F1dcc32
0 MATIC0.00371532105.00000003
Transfer583978442024-06-20 17:29:175 hrs ago1718904557IN
0xdF7837DE...30F1dcc32
0 MATIC0.0031364459.76
Transfer583973742024-06-20 17:12:375 hrs ago1718903557IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014482936.05234577
Transfer583971892024-06-20 17:06:055 hrs ago1718903165IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014505936.10967419
Transfer583971262024-06-20 17:03:515 hrs ago1718903031IN
0xdF7837DE...30F1dcc32
0 MATIC0.001452936.16708583
Transfer583970392024-06-20 17:00:455 hrs ago1718902845IN
0xdF7837DE...30F1dcc32
0 MATIC0.0014609636.3677031
Transfer583966832024-06-20 16:48:076 hrs ago1718902087IN
0xdF7837DE...30F1dcc32
0 MATIC0.0016598841.31942436
Approve583936972024-06-20 15:01:087 hrs ago1718895668IN
0xdF7837DE...30F1dcc32
0 MATIC0.00327362.85542694
Approve583934852024-06-20 14:53:368 hrs ago1718895216IN
0xdF7837DE...30F1dcc32
0 MATIC0.0049932996.53721342
Approve583934832024-06-20 14:53:328 hrs ago1718895212IN
0xdF7837DE...30F1dcc32
0 MATIC0.0051517698.93539466
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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)

000000000000000000000000730b20e25945c0f75acd72f64420097324d625cc

-----Decoded View---------------
Arg [0] : _proxyTo (address): 0x730B20e25945c0f75acD72f64420097324d625Cc

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000730b20e25945c0f75acd72f64420097324d625cc


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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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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.