MATIC Price: $0.96 (-11.60%)
Gas: 118 GWei
 

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Transaction Hash
Method
Block
From
To
Value
Execute Meta Tra...548299502024-03-19 5:48:4022 secs ago1710827320IN
Circle: USDC.e Token
0 MATIC0.0060740899.48865832
Transfer548299422024-03-19 5:48:0854 secs ago1710827288IN
Circle: USDC.e Token
0 MATIC0.0050160978.95881862
Approve548299382024-03-19 5:47:521 min ago1710827272IN
Circle: USDC.e Token
0 MATIC0.0041569771.55110374
Approve548299382024-03-19 5:47:521 min ago1710827272IN
Circle: USDC.e Token
0 MATIC0.0029334571.55110374
Approve548299372024-03-19 5:47:481 min ago1710827268IN
Circle: USDC.e Token
0 MATIC0.0041229771.03917116
Approve548299352024-03-19 5:47:381 min ago1710827258IN
Circle: USDC.e Token
0 MATIC0.004314774.28133812
Approve548299352024-03-19 5:47:381 min ago1710827258IN
Circle: USDC.e Token
0 MATIC0.0044807476.66473812
Transfer548299332024-03-19 5:47:341 min ago1710827254IN
Circle: USDC.e Token
0 MATIC0.0039556467.3416071
Approve548299322024-03-19 5:47:321 min ago1710827252IN
Circle: USDC.e Token
0 MATIC0.0042251972.72535061
Approve548299212024-03-19 5:47:101 min ago1710827230IN
Circle: USDC.e Token
0 MATIC0.0043828675.43921963
Approve548299162024-03-19 5:46:582 mins ago1710827218IN
Circle: USDC.e Token
0 MATIC0.0040698670.10959787
Approve548299162024-03-19 5:46:582 mins ago1710827218IN
Circle: USDC.e Token
0 MATIC0.0054623494
Approve548299092024-03-19 5:46:442 mins ago1710827204IN
Circle: USDC.e Token
0 MATIC0.0038214265.45110847
Approve548299052024-03-19 5:46:362 mins ago1710827196IN
Circle: USDC.e Token
0 MATIC0.0039227167.11684867
Approve548299052024-03-19 5:46:362 mins ago1710827196IN
Circle: USDC.e Token
0 MATIC0.0029070570.82424207
Approve548298992024-03-19 5:46:222 mins ago1710827182IN
Circle: USDC.e Token
0 MATIC0.003755164.62062105
Approve548298962024-03-19 5:46:162 mins ago1710827176IN
Circle: USDC.e Token
0 MATIC0.0040291769.33708999
Approve548298942024-03-19 5:46:122 mins ago1710827172IN
Circle: USDC.e Token
0 MATIC0.0038918366.58862914
Approve548298922024-03-19 5:46:082 mins ago1710827168IN
Circle: USDC.e Token
0 MATIC0.00668265115
Transfer548298912024-03-19 5:46:062 mins ago1710827166IN
Circle: USDC.e Token
0 MATIC0.0035357684.88830536
Approve548298832024-03-19 5:45:483 mins ago1710827148IN
Circle: USDC.e Token
0 MATIC0.0029707672.46118399
Approve548298832024-03-19 5:45:483 mins ago1710827148IN
Circle: USDC.e Token
0 MATIC0.0045505378.30892848
Transfer548298822024-03-19 5:45:463 mins ago1710827146IN
Circle: USDC.e Token
0 MATIC0.0040413287
Approve548298792024-03-19 5:45:403 mins ago1710827140IN
Circle: USDC.e Token
0 MATIC0.0031828677.61194919
Approve548298782024-03-19 5:45:383 mins ago1710827138IN
Circle: USDC.e Token
0 MATIC0.0044548976.67902669
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Latest 25 internal transactions (View All)

Parent Txn Hash Block From To Value
534747582024-02-13 14:03:5734 days ago1707833037
Circle: USDC.e Token
1 wei
507815542023-12-05 19:25:11104 days ago1701804311
Circle: USDC.e Token
0.00509984 MATIC
490607742023-10-23 15:17:30147 days ago1698074250
Circle: USDC.e Token
0.001 MATIC
466639372023-08-23 16:45:43208 days ago1692809143
Circle: USDC.e Token
0.01 MATIC
466629202023-08-23 16:06:41208 days ago1692806801
Circle: USDC.e Token
0.01 MATIC
462584982023-08-13 14:07:15218 days ago1691935635
Circle: USDC.e Token
0.00015879 MATIC
390574912023-02-08 12:55:53404 days ago1675860953
Circle: USDC.e Token
0.15 MATIC
364912482022-12-06 9:45:47468 days ago1670319947
Circle: USDC.e Token
0.02 MATIC
352464752022-11-05 21:20:05499 days ago1667683205
Circle: USDC.e Token
0.00015568 MATIC
336404472022-09-27 18:38:10538 days ago1664303890
Circle: USDC.e Token
0.00014782 MATIC
307081262022-07-14 8:34:55613 days ago1657787695
Circle: USDC.e Token
0.00012218 MATIC
289520382022-05-30 12:18:39658 days ago1653913119
Circle: USDC.e Token
0.00003748 MATIC
273574442022-04-20 9:45:24698 days ago1650447924
Circle: USDC.e Token
0.00003748 MATIC
262524182022-03-23 3:58:09727 days ago1648007889
Circle: USDC.e Token
0 MATIC
262523972022-03-23 3:57:23727 days ago1648007843
Circle: USDC.e Token
0 MATIC
262511332022-03-23 3:11:47727 days ago1648005107
Circle: USDC.e Token
0.1 MATIC
262510932022-03-23 3:10:27727 days ago1648005027
Circle: USDC.e Token
0.1 MATIC
262156732022-03-22 5:52:26727 days ago1647928346
Circle: USDC.e Token
0 MATIC
262154882022-03-22 5:46:08728 days ago1647927968
Circle: USDC.e Token
0 MATIC
262154222022-03-22 5:43:48728 days ago1647927828
Circle: USDC.e Token
0 MATIC
259806652022-03-15 20:37:37734 days ago1647376657
Circle: USDC.e Token
0.02 MATIC
250294412022-02-17 0:51:23761 days ago1645059083
Circle: USDC.e Token
0.00003699 MATIC
243309612022-01-30 5:26:20779 days ago1643520380
Circle: USDC.e Token
0.00000058 MATIC
242948552022-01-29 6:50:50779 days ago1643439050
Circle: USDC.e Token
0.00000039 MATIC
242947972022-01-29 6:48:34779 days ago1643438914
Circle: USDC.e Token
0.00000029 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
UChildERC20Proxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license
/**
 *Submitted for verification at polygonscan.com on 2021-06-09
*/

// SPDX-License-Identifier: MIT

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

pragma solidity 0.6.12;

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

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

// File: contracts/lib/Proxy/Proxy.sol

pragma solidity 0.6.12;

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/lib/Proxy/UpgradableProxy.sol

pragma solidity 0.6.12;

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

    bytes32 public constant IMPLEMENTATION_SLOT = keccak256(
        "matic.network.proxy.implementation"
    );
    bytes32 public 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)
        public
        payable
        onlyProxyOwner
    {
        updateImplementation(_newProxyTo);

        // solhint-disable-next-line avoid-low-level-calls
        (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/UChildERC20Proxy.sol

pragma solidity 0.6.12;

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_SLOT","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OWNER_SLOT","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"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)

000000000000000000000000dd9185db084f5c4fff3b4f70e7ba62123b812226

-----Decoded View---------------
Arg [0] : _proxyTo (address): 0xDD9185DB084f5C4fFf3b4f70E7bA62123b812226

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000dd9185db084f5c4fff3b4f70e7ba62123b812226


Deployed Bytecode Sourcemap

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Swarm Source

ipfs://696f7ae6f368606e2fb937629b8621028df4794f0d256c4f4b869fbe6350edcb

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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OVERVIEW

USD Coin is an ERC-20 stablecoin brought to you by Circle and Coinbase. It is issued by regulated and licensed financial institutions that maintain full reserves of the equivalent fiat currency.

Validator Index Block Amount
View All Withdrawals

Txn Hash Block Value Eth2 PubKey Valid
View All Deposits
Chain Token Portfolio % Price Amount Value
MATIC90.74%$0.998375962,296.9794$960,733.25
MATIC0.62%$3,368.351.9492$6,565.55
MATIC0.46%$0.9983754,904.3767$4,896.41
MATIC0.46%$0.9981594,899.9873$4,890.97
MATIC0.09%$64,6890.0147$948.54
MATIC0.06%$0.01397646,584.3721$651.05
MATIC0.04%$17.2924.8863$430.28
MATIC0.04%$0.0816924,818.8704$393.66
MATIC0.01%$0.0224835,054.3049$113.64
MATIC<0.01%$0.00481413,012.2222$62.63
MATIC<0.01%$0.9961248.23$48.04
MATIC<0.01%$0.07099181.45$12.88
MATIC<0.01%$1.094.4101$4.79
MATIC<0.01%$0.03139671$2.23
MATIC<0.01%<$0.00000110,278,712,321.9963$2.06
MATIC<0.01%$0.6982392.5116$1.75
MATIC<0.01%$0.002688547$1.47
MATIC<0.01%$0.01844957.8765$1.07
MATIC<0.01%$4.690.2$0.938
MATIC<0.01%$0.1892494.555$0.862
MATIC<0.01%$0.577981.11$0.6415
MATIC<0.01%$0.0209925.49$0.1152
ETH3.90%$0.99874341,313.8758$41,261.94
ETH0.38%$0.9678124,147.0134$4,013.53
ETH0.12%$0.9981591,294.6959$1,292.31
ETH<0.01%$0.0119411,100$13.13
BSC0.81%$0.9987438,627.3445$8,616.5
BSC0.22%$0.9981592,355.1429$2,350.81
BSC0.18%$525.533.5458$1,863.44
BSC0.12%$11,286.6401$1,287.08
BSC0.07%$1771.763$771.92
BSC<0.01%$0.96781283.6435$80.95
BSC<0.01%$3,375.710.0126$42.65
BSC<0.01%$0.13186890.2673$11.9
BSC<0.01%$0.007154103.5$0.7404
BSC<0.01%$0.002639100$0.2639
OP0.68%$0.99787,205.6107$7,189.76
OP0.06%$8.0378.0431$626.82
OP0.04%$3,356.140.1271$426.7
FTM0.47%$0.8509665,857.3233$4,984.38
AVAX0.21%$56.7939.6095$2,249.53
AVAX0.13%$0.9983751,331.7244$1,329.56
AVAX<0.01%$0.99837515.99$15.96
ARB0.02%$0.998719221.5329$221.25
ARB<0.01%$3,353.560.0315$105.58
ARB<0.01%$0.9981597.7794$7.77
ARB<0.01%$0.9987193.6092$3.6
ZKSYNC<0.01%$3,365.70.0248$83.54
ZKSYNC<0.01%$3,356.380.0248$83.31
BASE<0.01%$3,354.330.0232$77.9
BASE<0.01%$0.9983752.5694$2.57
ZKEVM<0.01%$3,354.80.002$6.71
WEMIX<0.01%$2.620.9399$2.46
GNO<0.01%$0.99780.5$0.4989
GNO<0.01%$10.2936$0.293646
CELO<0.01%$1.050.3791$0.398448
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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.