MATIC Price: $0.75 (+2.63%)
Gas: 74 GWei
 

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Method
Block
From
To
Value
Approve561894552024-04-24 6:15:5316 secs ago1713939353IN
Circle: USDC.e Token
0 MATIC0.0039171667.4233679
Approve561894522024-04-24 6:15:4722 secs ago1713939347IN
Circle: USDC.e Token
0 MATIC0.00626829107.24935248
Transfer561894512024-04-24 6:15:4524 secs ago1713939345IN
Circle: USDC.e Token
0 MATIC0.0039200184.3886068
Approve561894442024-04-24 6:15:3138 secs ago1713939331IN
Circle: USDC.e Token
0 MATIC0.0037394564.3512997
Transfer561894412024-04-24 6:15:2544 secs ago1713939325IN
Circle: USDC.e Token
0 MATIC0.01029736162
Transfer561894372024-04-24 6:15:1554 secs ago1713939315IN
Circle: USDC.e Token
0 MATIC0.0035589676.61589527
Transfer561894362024-04-24 6:15:1356 secs ago1713939313IN
Circle: USDC.e Token
0 MATIC0.0050495786
Transfer561894342024-04-24 6:15:091 min ago1713939309IN
Circle: USDC.e Token
0 MATIC0.0042266872
Transfer561894342024-04-24 6:15:091 min ago1713939309IN
Circle: USDC.e Token
0 MATIC0.0042284172
Approve561894312024-04-24 6:15:031 min ago1713939303IN
Circle: USDC.e Token
0 MATIC0.00610498104.4551923
Approve561894282024-04-24 6:14:571 min ago1713939297IN
Circle: USDC.e Token
0 MATIC0.0036448562.73639367
Transfer561894252024-04-24 6:14:511 min ago1713939291IN
Circle: USDC.e Token
0 MATIC0.0035764776.99300263
Approve561894232024-04-24 6:14:451 min ago1713939285IN
Circle: USDC.e Token
0 MATIC0.0036369462.6001488
Approve561894172024-04-24 6:14:331 min ago1713939273IN
Circle: USDC.e Token
0 MATIC0.0036259262.39769014
Approve561894162024-04-24 6:14:311 min ago1713939271IN
Circle: USDC.e Token
0 MATIC0.0036452762.74353886
Approve561894142024-04-24 6:14:271 min ago1713939267IN
Circle: USDC.e Token
0 MATIC0.0023130663.96407238
Approve561894132024-04-24 6:14:251 min ago1713939265IN
Circle: USDC.e Token
0 MATIC0.0029285371.34769469
Approve561894122024-04-24 6:14:231 min ago1713939263IN
Circle: USDC.e Token
0 MATIC0.00610557104.46519832
Transfer561894102024-04-24 6:14:191 min ago1713939259IN
Circle: USDC.e Token
0 MATIC0.0029699371.303622
Transfer561894092024-04-24 6:14:171 min ago1713939257IN
Circle: USDC.e Token
0 MATIC0.0033425671.97595946
Transfer561894042024-04-24 6:14:052 mins ago1713939245IN
Circle: USDC.e Token
0 MATIC0.0028860369.28921227
Transfer561894032024-04-24 6:14:032 mins ago1713939243IN
Circle: USDC.e Token
0 MATIC0.0029212770.13529018
Transfer561893992024-04-24 6:13:552 mins ago1713939235IN
Circle: USDC.e Token
0 MATIC0.00656701103.35248569
Approve561893982024-04-24 6:13:532 mins ago1713939233IN
Circle: USDC.e Token
0 MATIC0.0044158675.99150082
Approve561893932024-04-24 6:13:432 mins ago1713939223IN
Circle: USDC.e Token
0 MATIC0.0037853665.14129889
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Latest 25 internal transactions (View All)

Parent Transaction Hash Block From To Value
534747582024-02-13 14:03:5770 days ago1707833037
Circle: USDC.e Token
1 wei
507815542023-12-05 19:25:11140 days ago1701804311
Circle: USDC.e Token
0.00509984 MATIC
490607742023-10-23 15:17:30183 days ago1698074250
Circle: USDC.e Token
0.001 MATIC
466639372023-08-23 16:45:43244 days ago1692809143
Circle: USDC.e Token
0.01 MATIC
466629202023-08-23 16:06:41244 days ago1692806801
Circle: USDC.e Token
0.01 MATIC
462584982023-08-13 14:07:15254 days ago1691935635
Circle: USDC.e Token
0.00015879 MATIC
390574912023-02-08 12:55:53440 days ago1675860953
Circle: USDC.e Token
0.15 MATIC
364912482022-12-06 9:45:47504 days ago1670319947
Circle: USDC.e Token
0.02 MATIC
352464752022-11-05 21:20:05535 days ago1667683205
Circle: USDC.e Token
0.00015568 MATIC
336404472022-09-27 18:38:10574 days ago1664303890
Circle: USDC.e Token
0.00014782 MATIC
307081262022-07-14 8:34:55649 days ago1657787695
Circle: USDC.e Token
0.00012218 MATIC
289520382022-05-30 12:18:39694 days ago1653913119
Circle: USDC.e Token
0.00003748 MATIC
273574442022-04-20 9:45:24734 days ago1650447924
Circle: USDC.e Token
0.00003748 MATIC
262524182022-03-23 3:58:09763 days ago1648007889
Circle: USDC.e Token
0 MATIC
262523972022-03-23 3:57:23763 days ago1648007843
Circle: USDC.e Token
0 MATIC
262511332022-03-23 3:11:47763 days ago1648005107
Circle: USDC.e Token
0.1 MATIC
262510932022-03-23 3:10:27763 days ago1648005027
Circle: USDC.e Token
0.1 MATIC
262156732022-03-22 5:52:26764 days ago1647928346
Circle: USDC.e Token
0 MATIC
262154882022-03-22 5:46:08764 days ago1647927968
Circle: USDC.e Token
0 MATIC
262154222022-03-22 5:43:48764 days ago1647927828
Circle: USDC.e Token
0 MATIC
259806652022-03-15 20:37:37770 days ago1647376657
Circle: USDC.e Token
0.02 MATIC
250294412022-02-17 0:51:23797 days ago1645059083
Circle: USDC.e Token
0.00003699 MATIC
243309612022-01-30 5:26:20815 days ago1643520380
Circle: USDC.e Token
0.00000058 MATIC
242948552022-01-29 6:50:50815 days ago1643439050
Circle: USDC.e Token
0.00000039 MATIC
242947972022-01-29 6:48:34815 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

0x60806040526004361061007f5760003560e01c80635c60da1b1161004e5780635c60da1b14610179578063963949a31461018e578063d88ca2c8146101a3578063f1739cae14610259576100ce565b8063025313a2146100d9578063025b22bc1461010a578063086fc0c71461013d5780634555d5c914610164576100ce565b366100ce576100cc61008f61028c565b6000368080601f0160208091040260200160405190810160405280939291908181526020018383808284376000920191909152506102b192505050565b005b6100cc61008f61028c565b3480156100e557600080fd5b506100ee6102d9565b604080516001600160a01b039092168252519081900360200190f35b34801561011657600080fd5b506100cc6004803603602081101561012d57600080fd5b50356001600160a01b03166102e8565b34801561014957600080fd5b50610152610422565b60408051918252519081900360200190f35b34801561017057600080fd5b50610152610446565b34801561018557600080fd5b506100ee61044b565b34801561019a57600080fd5b50610152610455565b6100cc600480360360408110156101b957600080fd5b6001600160a01b0382351691908101906040810160208201356401000000008111156101e457600080fd5b8201836020820111156101f657600080fd5b8035906020019184600183028401116401000000008311171561021857600080fd5b91908080601f016020809104026020016040519081016040528093929190818152602001838380828437600092019190915250929550610479945050505050565b34801561026557600080fd5b506100cc6004803603602081101561027c57600080fd5b50356001600160a01b031661060f565b7fbaab7dbf64751104133af04abc7d9979f0fda3b059a322a8333f533d3f32bf7f5490565b600080825160208401856127105a03f43d604051816000823e8280156102d5578282f35b8282fd5b60006102e361070a565b905090565b336102f161070a565b6001600160a01b031614610338576040805162461bcd60e51b81526020600482015260096024820152682727aa2fa7aba722a960b91b604482015290519081900360640190fd5b6001600160a01b03811661038b576040805162461bcd60e51b8152602060048201526015602482015274494e56414c49445f50524f58595f4144445245535360581b604482015290519081900360640190fd5b6103948161072f565b6103cf5760405162461bcd60e51b815260040180806020018281038252602581526020018061079b6025913960400191505060405180910390fd5b6103d761028c565b6001600160a01b0316816001600160a01b03167fd32d24edea94f55e932d9a008afc425a8561462d1b1f57bc6e508e9a6b9509e160405160405180910390a361041f81610752565b50565b7fbaab7dbf64751104133af04abc7d9979f0fda3b059a322a8333f533d3f32bf7f81565b600290565b60006102e361028c565b7f44f6e2e8884cba1236b7f22f351fa5d88b17292b7e0225ca47e5ecdf6055cdd681565b3361048261070a565b6001600160a01b0316146104c9576040805162461bcd60e51b81526020600482015260096024820152682727aa2fa7aba722a960b91b604482015290519081900360640190fd5b6104d2826102e8565b60006060306001600160a01b031634846040518082805190602001908083835b602083106105115780518252601f1990920191602091820191016104f2565b6001836020036101000a03801982511681845116808217855250505050505090500191505060006040518083038185875af1925050503d8060008114610573576040519150601f19603f3d011682016040523d82523d6000602084013e610578565b606091505b50915091508181906106085760405162461bcd60e51b81526004018080602001828103825283818151815260200191508051906020019080838360005b838110156105cd5781810151838201526020016105b5565b50505050905090810190601f1680156105fa5780820380516001836020036101000a031916815260200191505b509250505060405180910390fd5b5050505050565b3361061861070a565b6001600160a01b03161461065f576040805162461bcd60e51b81526020600482015260096024820152682727aa2fa7aba722a960b91b604482015290519081900360640190fd5b6001600160a01b0381166106a9576040805162461bcd60e51b815260206004820152600c60248201526b5a45524f5f4144445245535360a01b604482015290519081900360640190fd5b7fdbe5fd65bcdbae152f24ab660ea68e72b4d4705b57b16e0caae994e214680ee2816106d361070a565b60405180836001600160a01b03168152602001826001600160a01b031681526020019250505060405180910390a161041f81610776565b7f44f6e2e8884cba1236b7f22f351fa5d88b17292b7e0225ca47e5ecdf6055cdd65490565b60006001600160a01b0382166107475750600061074d565b50803b15155b919050565b7fbaab7dbf64751104133af04abc7d9979f0fda3b059a322a8333f533d3f32bf7f55565b7f44f6e2e8884cba1236b7f22f351fa5d88b17292b7e0225ca47e5ecdf6055cdd65556fe44455354494e4154494f4e5f414444524553535f49535f4e4f545f415f434f4e5452414354a2646970667358221220696f7ae6f368606e2fb937629b8621028df4794f0d256c4f4b869fbe6350edcb64736f6c634300060c0033

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.

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Validator Index Block Amount
View All Withdrawals

Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
Chain Token Portfolio % Price Amount Value
MATIC90.86%$0.999261963,595.167$962,883.07
MATIC0.60%$3,250.681.9492$6,336.19
MATIC0.58%$0.9992616,109.0683$6,104.55
MATIC0.46%$0.9994744,899.9873$4,897.41
MATIC0.09%$66,7460.0147$978.71
MATIC0.05%$0.01223446,584.3721$569.9
MATIC0.04%$15.3530.405$466.72
MATIC0.03%$0.0618714,818.8704$298.15
MATIC<0.01%$9.068.2863$75.07
MATIC<0.01%$0.0121135,054.3049$61.22
MATIC<0.01%$0.00453713,012.2222$59.03
MATIC<0.01%$0.99903548.23$48.18
MATIC<0.01%$0.03831181.45$6.95
MATIC<0.01%$0.8385914.4101$3.7
MATIC<0.01%<$0.00000110,278,712,321.9963$3.08
MATIC<0.01%$0.0376171$2.67
MATIC<0.01%$0.5602312.5116$1.41
MATIC<0.01%$0.001612547$0.8817
MATIC<0.01%$4.10.2$0.82
MATIC<0.01%$0.01383957.8765$0.8009
MATIC<0.01%$0.1311574.555$0.5974
MATIC<0.01%$0.4993261.11$0.5542
MATIC<0.01%$0.0200045.49$0.1098
ETH3.90%$0.99982341,313.8857$41,306.57
ETH0.30%$0.7510814,197.0134$3,152.3
ETH0.12%$0.9994741,294.6959$1,294.01
ETH<0.01%$0.007331,100$8.06
BSC0.81%$0.9993998,627.3445$8,622.16
BSC0.22%$0.9994742,355.1429$2,353.9
BSC0.20%$606.043.5458$2,148.93
BSC0.12%$11,286.6401$1,289.47
BSC0.07%$1771.763$771.77
BSC<0.01%$0.75047283.6435$62.77
BSC<0.01%$3,248.030.0126$41.03
BSC<0.01%$0.16182390.2673$14.61
BSC<0.01%$0.006426103.5$0.6651
BSC<0.01%$0.00156100$0.1559
OP0.68%$0.9992617,205.6107$7,200.29
OP0.04%$5.4878.0441$427.53
OP0.04%$3,251.680.1271$413.41
FTM0.42%$0.7586975,857.3233$4,443.93
AVAX0.15%$39.3539.6969$1,562.13
AVAX0.13%$0.9992611,331.7244$1,330.74
AVAX<0.01%$0.99926115.99$15.98
ARB0.02%$0.999798221.5329$221.49
ARB<0.01%$3,252.740.0315$102.4
ARB<0.01%$0.99979812.2624$12.26
ARB<0.01%$0.9994747.7794$7.78
ZKSYNC<0.01%$3,252.30.0248$80.73
BASE<0.01%$3,253.120.0232$75.55
BASE<0.01%$0.9998232.5694$2.57
WEMIX<0.01%$1.830.9399$1.72
GNO<0.01%$10.5$0.50
GNO<0.01%$10.2936$0.293611
CELO<0.01%$0.9170350.3791$0.347661
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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.