MATIC Price: $1.01 (+0.40%)
Gas: 87 GWei
 

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Method
Block
From
To
Value
Transfer541185032024-03-01 0:57:0445 secs ago1709254624IN
Circle: USDC.e Token
0 MATIC0.0053310683.9009841
Transfer541184972024-03-01 0:56:5257 secs ago1709254612IN
Circle: USDC.e Token
0 MATIC0.0041633989.6510156
Transfer541184972024-03-01 0:56:5257 secs ago1709254612IN
Circle: USDC.e Token
0 MATIC0.0039962896
Approve541184962024-03-01 0:56:5059 secs ago1709254610IN
Circle: USDC.e Token
0 MATIC0.0052325790.06465701
Execute Meta Tra...541184892024-03-01 0:56:341 min ago1709254594IN
Circle: USDC.e Token
0 MATIC0.0058836796.34468883
Approve541184852024-03-01 0:56:261 min ago1709254586IN
Circle: USDC.e Token
0 MATIC0.0052238489.89586352
Transfer541184822024-03-01 0:56:201 min ago1709254580IN
Circle: USDC.e Token
0 MATIC0.005088986.63437201
Approve541184812024-03-01 0:56:181 min ago1709254578IN
Circle: USDC.e Token
0 MATIC0.0051312688.28435841
Approve541184802024-03-01 0:56:161 min ago1709254576IN
Circle: USDC.e Token
0 MATIC0.0052902891.13324969
Approve541184772024-03-01 0:56:081 min ago1709254568IN
Circle: USDC.e Token
0 MATIC0.0049974686
Approve541184752024-03-01 0:56:041 min ago1709254564IN
Circle: USDC.e Token
0 MATIC0.00608485104.71269668
Transfer541184742024-03-01 0:56:021 min ago1709254562IN
Circle: USDC.e Token
0 MATIC0.0056966197
Approve541184672024-03-01 0:55:482 mins ago1709254548IN
Circle: USDC.e Token
0 MATIC0.0055013894.67192467
Transfer541184652024-03-01 0:55:442 mins ago1709254544IN
Circle: USDC.e Token
0 MATIC0.0053905691.75124961
Transfer541184612024-03-01 0:55:342 mins ago1709254534IN
Circle: USDC.e Token
0 MATIC0.00420442101
Transfer541184572024-03-01 0:55:262 mins ago1709254526IN
Circle: USDC.e Token
0 MATIC0.0043373993.39773383
Approve541184572024-03-01 0:55:262 mins ago1709254526IN
Circle: USDC.e Token
0 MATIC0.00624623107.51210216
Approve541184572024-03-01 0:55:262 mins ago1709254526IN
Circle: USDC.e Token
0 MATIC0.00714753123
Approve541184542024-03-01 0:55:202 mins ago1709254520IN
Circle: USDC.e Token
0 MATIC0.01016434173.91
Approve541184422024-03-01 0:54:542 mins ago1709254494IN
Circle: USDC.e Token
0 MATIC0.0077092200
Approve541184422024-03-01 0:54:542 mins ago1709254494IN
Circle: USDC.e Token
0 MATIC0.0051432488
Transfer541184382024-03-01 0:54:463 mins ago1709254486IN
Circle: USDC.e Token
0 MATIC0.0053910891.76001518
Approve541184342024-03-01 0:54:383 mins ago1709254478IN
Circle: USDC.e Token
0 MATIC0.00714753123
Transfer541184262024-03-01 0:54:203 mins ago1709254460IN
Circle: USDC.e Token
0 MATIC0.00743886160.14084236
Transfer541184242024-03-01 0:54:163 mins ago1709254456IN
Circle: USDC.e Token
0 MATIC0.005382291.60894431
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Latest 25 internal transactions (View All)

Parent Txn Hash Block From To Value
534747582024-02-13 14:03:5716 days 10 hrs ago1707833037
Circle: USDC.e Token
1 wei
507815542023-12-05 19:25:1186 days 5 hrs ago1701804311
Circle: USDC.e Token
0.00509984 MATIC
490607742023-10-23 15:17:30129 days 9 hrs ago1698074250
Circle: USDC.e Token
0.001 MATIC
466639372023-08-23 16:45:43190 days 8 hrs ago1692809143
Circle: USDC.e Token
0.01 MATIC
466629202023-08-23 16:06:41190 days 8 hrs ago1692806801
Circle: USDC.e Token
0.01 MATIC
462584982023-08-13 14:07:15200 days 10 hrs ago1691935635
Circle: USDC.e Token
0.00015879 MATIC
390574912023-02-08 12:55:53386 days 12 hrs ago1675860953
Circle: USDC.e Token
0.15 MATIC
364912482022-12-06 9:45:47450 days 15 hrs ago1670319947
Circle: USDC.e Token
0.02 MATIC
352464752022-11-05 21:20:05481 days 3 hrs ago1667683205
Circle: USDC.e Token
0.00015568 MATIC
336404472022-09-27 18:38:10520 days 6 hrs ago1664303890
Circle: USDC.e Token
0.00014782 MATIC
307081262022-07-14 8:34:55595 days 16 hrs ago1657787695
Circle: USDC.e Token
0.00012218 MATIC
289520382022-05-30 12:18:39640 days 12 hrs ago1653913119
Circle: USDC.e Token
0.00003748 MATIC
273574442022-04-20 9:45:24680 days 15 hrs ago1650447924
Circle: USDC.e Token
0.00003748 MATIC
262524182022-03-23 3:58:09708 days 20 hrs ago1648007889
Circle: USDC.e Token
0 MATIC
262523972022-03-23 3:57:23708 days 21 hrs ago1648007843
Circle: USDC.e Token
0 MATIC
262511332022-03-23 3:11:47708 days 21 hrs ago1648005107
Circle: USDC.e Token
0.1 MATIC
262510932022-03-23 3:10:27708 days 21 hrs ago1648005027
Circle: USDC.e Token
0.1 MATIC
262156732022-03-22 5:52:26709 days 19 hrs ago1647928346
Circle: USDC.e Token
0 MATIC
262154882022-03-22 5:46:08709 days 19 hrs ago1647927968
Circle: USDC.e Token
0 MATIC
262154222022-03-22 5:43:48709 days 19 hrs ago1647927828
Circle: USDC.e Token
0 MATIC
259806652022-03-15 20:37:37716 days 4 hrs ago1647376657
Circle: USDC.e Token
0.02 MATIC
250294412022-02-17 0:51:23743 days 6 mins ago1645059083
Circle: USDC.e Token
0.00003699 MATIC
243309612022-01-30 5:26:20760 days 19 hrs ago1643520380
Circle: USDC.e Token
0.00000058 MATIC
242948552022-01-29 6:50:50761 days 18 hrs ago1643439050
Circle: USDC.e Token
0.00000039 MATIC
242947972022-01-29 6:48:34761 days 18 hrs 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
MATIC91.11%$0.998994961,395.752$960,428.59
MATIC0.62%$3,367.51.9492$6,563.89
MATIC0.46%$14,899.9873$4,899.99
MATIC0.45%$0.9989944,720.5467$4,715.8
MATIC0.09%$61,4510.0147$901.06
MATIC0.06%$0.01392946,584.3721$648.87
MATIC0.05%$19.424.8863$482.79
MATIC0.03%$0.0620854,818.8704$299.18
MATIC<0.01%$0.00492313,012.2222$64.05
MATIC<0.01%$0.0097495,054.3049$49.27
MATIC<0.01%$148.23$48.23
MATIC<0.01%$0.071925181.45$13.05
MATIC<0.01%<$0.00000110,278,712,321.9963$2.06
MATIC<0.01%$0.6833132.5116$1.72
MATIC<0.01%$0.002873547$1.57
MATIC<0.01%$0.0195371$1.39
MATIC<0.01%$5.020.2$1
MATIC<0.01%$0.01526257.8765$0.8833
MATIC<0.01%$0.1904434.555$0.8674
MATIC<0.01%$0.601651.11$0.6678
MATIC<0.01%$0.0288795.49$0.1585
ETH3.91%$0.99858641,313.8758$41,255.46
ETH0.39%$1.014,102.525$4,143.55
ETH0.12%$11,294.6959$1,294.7
ETH<0.01%$0.0120881,100$13.3
BSC0.82%$0.9985868,627.3445$8,615.15
BSC0.22%$12,355.1429$2,355.14
BSC0.14%$404.283.5458$1,433.52
BSC0.12%$11,286.6401$1,288.16
BSC0.07%$0.999912771.763$771.69
BSC<0.01%$1.0183.6435$84.48
BSC<0.01%$3,367.430.0126$42.54
BSC<0.01%$0.11901790.2673$10.74
BSC<0.01%$0.007642103.5$0.7909
BSC<0.01%$0.00205100$0.205
OP0.61%$0.9989946,409.2107$6,402.76
OP0.05%$7.4278.0431$579.29
OP0.04%$3,378.520.1271$429.54
AVAX0.16%$41.6739.2999$1,637.44
AVAX0.13%$0.9995311,331.7244$1,331.1
AVAX<0.01%$0.99953115.99$15.98
FTM0.26%$0.4663735,857.3233$2,731.7
ARB0.02%$0.998882221.5329$221.29
ARB<0.01%$3,380.10.0307$103.88
ARB<0.01%$17.7794$7.78
ARB<0.01%$0.9988823.6092$3.61
ZKSYNC<0.01%$3,379.880.0248$83.89
ZKSYNC<0.01%$3,378.50.0248$83.86
BASE<0.01%$3,378.920.0232$78.47
BASE<0.01%$0.9985861$0.9985
ZKEVM<0.01%$3,378.50.002$6.76
WEMIX<0.01%$2.210.9399$2.08
GNO<0.01%$0.9989940.5$0.4994
GNO<0.01%$0.9999030.2936$0.293579
CELO<0.01%$1.140.3791$0.430294
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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.