Token USD Coin

Overview ERC20

Price
$1.00 @ 2.725434 GLMR (-0.02%)
Fully Diluted Market Cap
Total Supply:
51,319,715.564273 USDC

Holders:
10,166 addresses
Balance
0 USDC

Value
$0.00
0x09fa38eba245bb68354b8950fa2fe71f02863393
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Market

Volume (24H):$2,752,345,241.71
Market Capitalization:$43,079,042,690.75
Circulating Supply:43,080,698,921.00 USDC
Market Data Source: Coinmarketcap


Update? Click here to update the token ICO / general information
# Exchange Pair Price  24H Volume % Volume
1
Uniswap (v3)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.004
0.0000593 Btc
$324,811,506.00
326,110,336.889 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.3055%
2
LBank
ETH-USDC$0.9994
0.0000590 Btc
$210,152,586.00
164,647.514 ETH
0.0002%
3
LBank
BTC-USDC$0.9994
0.0000590 Btc
$203,882,346.00
12,034.521 BTC
0.0000%
4
Uniswap (v3)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.004
0.0000593 Btc
$119,571,274.00
119,073,127.110 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.1116%
5
MEXC Global
ETH-USDC$1.00
0.0000590 Btc
$107,085,286.00
83,883.587 ETH
0.0001%
6
Bitforex
USDC-USDT$1.00
0.0000590 Btc
$84,733,094.00
84,733,586.065 USDC
0.0794%
7
MEXC Global
BTC-USDC$1.00
0.0000590 Btc
$84,655,935.00
4,993.777 BTC
0.0000%
8
Bitforex
BTC-USDC$0.9994
0.0000590 Btc
$80,081,453.00
4,726.862 BTC
0.0000%
9
Uniswap (Arbitrum One)
0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8$1.001
0.0000591 Btc
$38,982,750.00
30,315.073 0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1
0.0000%
10
Kraken
USDC-USDT$1.00
0.0000590 Btc
$35,786,923.00
35,780,334.597 USDC
0.0335%
11
Kraken
USDC-EUR$1.00
0.0000590 Btc
$26,639,744.00
26,638,036.425 USDC
0.0250%
12
Kraken
USDC-USD$0.9999
0.0000590 Btc
$23,086,259.00
23,088,567.868 USDC
0.0216%
13
Huobi
USDC-USDT$0.9999
0.0000590 Btc
$22,055,391.00
22,058,525.002 USDC
0.0207%
14
BitMart
BTC-USDC$0.9998
0.0000590 Btc
$21,200,703.00
1,251.369 BTC
0.0000%
15
WhiteBIT
USDC-USDT$0.9998
0.0000590 Btc
$20,021,254.00
20,025,370.980 USDC
0.0188%
16
Uniswap (v3)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.004
0.0000593 Btc
$19,912,877.00
20,043,475.437 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0188%
17
BingX
BTC-USDC$1.00
0.0000590 Btc
$19,095,347.00
1,117.640 BTC
0.0000%
18
XT.COM
USDC-USDT$1.00
0.0000590 Btc
$17,827,261.00
17,821,754.260 USDC
0.0167%
19
BKEX
BTC-USDC$1.00
0.0000590 Btc
$17,818,198.00
1,042.393 BTC
0.0000%
20
Bybit
BTC-USDC$1.00
0.0000590 Btc
$17,658,125.00
1,041.699 BTC
0.0000%
21
BKEX
ETH-USDC$0.9994
0.0000590 Btc
$16,823,635.00
13,098.401 ETH
0.0000%
22
P2B
USDC-USDT$0.9998
0.0000590 Btc
$16,781,324.00
16,784,778.500 USDC
0.0157%
23
P2B
USDC-BUSD$1.00
0.0000590 Btc
$16,705,669.00
16,703,394.500 USDC
0.0156%
24
Bybit
USDC-USDT$1.00
0.0000590 Btc
$13,208,139.00
13,204,318.160 USDC
0.0124%
25
OKX
ETH-USDC$0.9998
0.0000590 Btc
$12,677,254.00
9,866.482 ETH
0.0000%
26
DigiFinex
USDC-USDT$1.00
0.0000590 Btc
$12,593,997.00
12,594,069.872 USDC
0.0118%
27
Bybit
ETH-USDC$1.00
0.0000590 Btc
$10,771,631.00
8,439.677 ETH
0.0000%
28
OKX
USDC-USDT$1.001
0.0000590 Btc
$9,412,825.00
9,407,975.529 USDC
0.0088%
29
OKX
BTC-USDC$0.9998
0.0000590 Btc
$9,381,155.00
549.061 BTC
0.0000%
30
DigiFinex
ETH-USDC$0.9994
0.0000590 Btc
$9,028,916.00
7,074.130 ETH
0.0000%
31
Uniswap (v3)
0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.004
0.0000593 Btc
$8,352,982.00
8,317,449.814 0X6B175474E89094C44DA98B954EEDEAC495271D0F
0.0078%
32
BKEX
USDC-USDT$1.00
0.0000590 Btc
$6,648,547.00
6,646,010.830 USDC
0.0062%
33
DigiFinex
BTC-USDC$0.9994
0.0000590 Btc
$6,598,954.00
389.566 BTC
0.0000%
34
BingX
ETH-USDC$1.00
0.0000590 Btc
$6,537,027.00
5,089.149 ETH
0.0000%
35
WhiteBIT
BTC-USDC$0.9994
0.0000590 Btc
$6,112,835.00
360.971 BTC
0.0000%
36
ZigZag (Arbitrum)
WETH-USDC$1.00
0.0000590 Btc
$5,831,345.00
4,553.550 WETH
0.0000%
37
BingX
USDC-USDT$1.00
0.0000590 Btc
$5,082,669.00
5,080,825.849 USDC
0.0048%
38
MEXC Global
DOGE-USDC$1.00
0.0000590 Btc
$3,910,401.00
38,282,613.030 DOGE
0.0359%
39
MEXC Global
AVAX-USDC$1.00
0.0000590 Btc
$3,703,927.00
286,145.630 AVAX
0.0003%
40
Uniswap (v2)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.00
0.0000590 Btc
$3,643,196.00
3,666,075.152 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0034%
41
Kraken
USDC-GBP$0.9999
0.0000590 Btc
$3,624,231.00
3,624,515.303 USDC
0.0034%
42
BitMart
ETH-USDC$0.9994
0.0000590 Btc
$3,459,226.00
2,711.101 ETH
0.0000%
43
Sushiswap (Arbitrum One)
0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$1.007
0.0000594 Btc
$3,265,540.00
3,280,808.181 0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8
0.0031%
44
Gemini
USDC-USD$0.9996
0.0000590 Btc
$3,206,197.00
3,207,576.096 USDC
0.0030%
45
Kraken
BTC-USDC$1.00
0.0000590 Btc
$3,128,841.00
184.517 BTC
0.0000%
46
Sushiswap
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$0.9995
0.0000590 Btc
$2,869,214.00
2,874,831.991 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0027%
47
Binance US
USDC-USD$1.00
0.0000590 Btc
$2,646,989.00
2,646,988.592 USDC
0.0025%
48
Bitget
BTC-USDC$1.00
0.0000590 Btc
$2,596,427.00
151.973 BTC
0.0000%
49
Uniswap (v3)
0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.004
0.0000593 Btc
$2,208,045.00
128.621 0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599
0.0000%
50
MEXC Global
XRP-USDC$1.00
0.0000590 Btc
$2,017,336.00
5,085,192.820 XRP
0.0048%
51
MEXC Global
BCH-USDC$1.00
0.0000590 Btc
$1,916,066.00
17,297.170 BCH
0.0000%
52
Bitstamp
USDC-EUR$0.9998
0.0000590 Btc
$1,884,128.00
1,884,581.096 USDC
0.0018%
53
Bitstamp
USDC-USD$0.9987
0.0000589 Btc
$1,879,936.00
1,882,440.083 USDC
0.0018%
54
MEXC Global
EOS-USDC$1.00
0.0000590 Btc
$1,781,149.00
1,910,258.530 EOS
0.0018%
55
MEXC Global
LTC-USDC$1.00
0.0000590 Btc
$1,699,074.00
21,875.170 LTC
0.0000%
56
Hotbit
USDC-USDT$0.9987
0.0000589 Btc
$1,634,796.00
1,636,929.660 USDC
0.0015%
57
Kraken
ETH-USDC$1.00
0.0000590 Btc
$1,338,461.00
1,048.275 ETH
0.0000%
58
MEXC Global
SOL-USDC$1.00
0.0000590 Btc
$1,302,875.00
96,283.490 SOL
0.0001%
59
Bitget
USDC-USDT$1.00
0.0000590 Btc
$1,054,715.00
1,054,531.579 USDC
0.0010%
60
MEXC Global
FTM-USDC$1.00
0.0000590 Btc
$1,027,583.00
4,021,235.860 FTM
0.0038%
61
MEXC Global
ADA-USDC$1.00
0.0000590 Btc
$1,026,605.00
3,257,904.300 ADA
0.0031%
62
WhiteBIT
ETH-USDC$0.9994
0.0000590 Btc
$989,373.00
775.553 ETH
0.0000%
63
MEXC Global
SHIB-USDC$1.00
0.0000590 Btc
$970,081.00
105,856,551,196.000 SHIB
99.1708%
64
Bitget
ETH-USDC$1.00
0.0000590 Btc
$838,797.00
653.489 ETH
0.0000%
65
Tidex
BTC-USDC$0.9998
0.0000590 Btc
$830,500.00
49.007 BTC
0.0000%
66
PancakeSwap (v2)
0X2170ED0880AC9A755FD29B2688956BD959F933F8-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D$1.005
0.0000593 Btc
$816,305.00
632.079 0X2170ED0880AC9A755FD29B2688956BD959F933F8
0.0000%
67
Bibox
ETH-USDC$0.9994
0.0000590 Btc
$763,994.00
599.000 ETH
0.0000%
68
PancakeSwap (v2)
0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D-BUSD$0.999
0.0000590 Btc
$737,978.00
736,837.609 0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D
0.0007%
69
MEXC Global
TRX-USDC$1.00
0.0000590 Btc
$687,131.00
12,660,982.730 TRX
0.0119%
70
Maiar
WEGLD-BD4D79-USDC-C76F1F$1.003
0.0000592 Btc
$686,079.00
15,708.327 WEGLD-BD4D79
0.0000%
71
Coinbase Exchange
USDT-USDC$0.9998
0.0000590 Btc
$548,476.00
548,539.210 USDT
0.0005%
72
Phemex
USDC-USDT$1.00
0.0000590 Btc
$517,460.00
517,312.580 USDC
0.0005%
73
BitMart
USDC-USDT$1.00
0.0000590 Btc
$483,631.00
483,431.820 USDC
0.0005%
74
PancakeSwap (v2)
0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D-USDT$1.003
0.0000592 Btc
$437,102.00
436,854.468 0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D
0.0004%
75
Uniswap (v3)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.004
0.0000593 Btc
$419,069.00
424,152.561 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0004%
76
MEXC Global
MATIC-USDC$1.00
0.0000590 Btc
$374,142.00
406,007.420 MATIC
0.0004%
77
Coinbase Exchange
USDC-EUR$1.00
0.0000590 Btc
$298,544.00
298,430.670 USDC
0.0003%
78
BKEX
APE-USDC$1.00
0.0000590 Btc
$269,342.00
67,840.803 APE
0.0001%
79
MEXC Global
AAVE-USDC$1.00
0.0000590 Btc
$263,148.00
4,116.736 AAVE
0.0000%
80
Bitget
BCH-USDC$1.00
0.0000590 Btc
$242,858.00
2,167.118 BCH
0.0000%
81
Bitstamp
BTC-USDC$0.9994
0.0000590 Btc
$216,635.00
12.849 BTC
0.0000%
82
MEXC Global
ENS-USDC$1.00
0.0000590 Btc
$216,343.00
15,397.300 ENS
0.0000%
83
Coinbase Exchange
USDC-GBP$0.9994
0.0000590 Btc
$213,574.00
213,695.200 USDC
0.0002%
84
Bitget
BNB-USDC$1.00
0.0000590 Btc
$166,780.00
561.590 BNB
0.0000%
85
Bitfinex
UDC-USDT$1.001
0.0000591 Btc
$163,558.00
163,460.896 UDC
0.0002%
86
Bitget
ADA-USDC$1.00
0.0000590 Btc
$154,256.00
487,141.000 ADA
0.0005%
87
BitMart
DAI-USDC$0.9994
0.0000590 Btc
$154,083.00
154,231.000 DAI
0.0001%
88
MEXC Global
KLAY-USDC$1.00
0.0000590 Btc
$153,380.00
806,761.610 KLAY
0.0008%
89
Okcoin
USDC-USD$0.9999
0.0000590 Btc
$145,217.00
145,231.157 USDC
0.0001%
90
CoinEx
USDC-USDT$1.001
0.0000591 Btc
$141,157.00
141,091.033 USDC
0.0001%
91
Bittrex
USDC-USD$1.00
0.0000590 Btc
$137,490.00
137,489.511 USDC
0.0001%
92
CoinJar Exchange
USDC-AUD$1.001
0.0000590 Btc
$120,907.00
120,845.056 USDC
0.0001%
93
Bitget
MATIC-USDC$1.00
0.0000590 Btc
$110,745.00
120,056.300 MATIC
0.0001%
94
Bitget
AVAX-USDC$1.00
0.0000590 Btc
$107,956.00
8,272.040 AVAX
0.0000%
95
BKEX
ATOM-USDC$0.9994
0.0000590 Btc
$105,377.00
10,141.412 ATOM
0.0000%
96
Bitget
DOGE-USDC$1.00
0.0000590 Btc
$100,596.00
968,326.590 DOGE
0.0009%
97
Coinfield
BTC-USDC$0.9994
0.0000590 Btc
$100,360.00
5.924 BTC
0.0000%
98
Bitget
TRX-USDC$1.00
0.0000590 Btc
$93,049.00
1,707,061.400 TRX
0.0016%
99
BKEX
SOL-USDC$0.9994
0.0000590 Btc
$78,855.00
5,712.297 SOL
0.0000%
100
Coinsbit
USDC-USDT$0.9999
0.0000590 Btc
$45,081.00
45,083.922 USDC
0.0000%

Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x30D2a9F5FDf90ACe8c17952cbb4eE48a55D916A7

Contract Name:
UpgradeBeaconProxy

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 999999 runs

Other Settings:
default evmVersion
File 1 of 2 : UpgradeBeaconProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.11;

// ============ External Imports ============
import {Address} from "@openzeppelin/contracts/utils/Address.sol";

/**
 * @title UpgradeBeaconProxy
 * @notice
 * Proxy contract which delegates all logic, including initialization,
 * to an implementation contract.
 * The implementation contract is stored within an Upgrade Beacon contract;
 * the implementation contract can be changed by performing an upgrade on the Upgrade Beacon contract.
 * The Upgrade Beacon contract for this Proxy is immutably specified at deployment.
 * @dev This implementation combines the gas savings of keeping the UpgradeBeacon address outside of contract storage
 * found in 0age's implementation:
 * https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/proxies/smart-wallet/UpgradeBeaconProxyV1.sol
 * With the added safety checks that the UpgradeBeacon and implementation are contracts at time of deployment
 * found in OpenZeppelin's implementation:
 * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/beacon/BeaconProxy.sol
 */
contract UpgradeBeaconProxy {
    // ============ Immutables ============

    // Upgrade Beacon address is immutable (therefore not kept in contract storage)
    address private immutable upgradeBeacon;

    // ============ Constructor ============

    /**
     * @notice Validate that the Upgrade Beacon is a contract, then set its
     * address immutably within this contract.
     * Validate that the implementation is also a contract,
     * Then call the initialization function defined at the implementation.
     * The deployment will revert and pass along the
     * revert reason if the initialization function reverts.
     * @param _upgradeBeacon Address of the Upgrade Beacon to be stored immutably in the contract
     * @param _initializationCalldata Calldata supplied when calling the initialization function
     */
    constructor(address _upgradeBeacon, bytes memory _initializationCalldata)
        payable
    {
        // Validate the Upgrade Beacon is a contract
        require(Address.isContract(_upgradeBeacon), "beacon !contract");
        // set the Upgrade Beacon
        upgradeBeacon = _upgradeBeacon;
        // Validate the implementation is a contract
        address _implementation = _getImplementation(_upgradeBeacon);
        require(
            Address.isContract(_implementation),
            "beacon implementation !contract"
        );
        // Call the initialization function on the implementation
        if (_initializationCalldata.length > 0) {
            _initialize(_implementation, _initializationCalldata);
        }
    }

    // ============ External Functions ============

    /**
     * @notice Forwards all calls with data to _fallback()
     * No public functions are declared on the contract, so all calls hit fallback
     */
    fallback() external payable {
        _fallback();
    }

    /**
     * @notice Forwards all calls with no data to _fallback()
     */
    receive() external payable {
        _fallback();
    }

    // ============ Private Functions ============

    /**
     * @notice Call the initialization function on the implementation
     * Used at deployment to initialize the proxy
     * based on the logic for initialization defined at the implementation
     * @param _implementation - Contract to which the initalization is delegated
     * @param _initializationCalldata - Calldata supplied when calling the initialization function
     */
    function _initialize(
        address _implementation,
        bytes memory _initializationCalldata
    ) private {
        // Delegatecall into the implementation, supplying initialization calldata.
        (bool _ok, ) = _implementation.delegatecall(_initializationCalldata);
        // Revert and include revert data if delegatecall to implementation reverts.
        if (!_ok) {
            assembly {
                returndatacopy(0, 0, returndatasize())
                revert(0, returndatasize())
            }
        }
    }

    /**
     * @notice Delegates function calls to the implementation contract returned by the Upgrade Beacon
     */
    function _fallback() private {
        _delegate(_getImplementation());
    }

    /**
     * @notice Delegate function execution to the implementation contract
     * @dev This is a low level function that doesn't return to its internal
     * call site. It will return whatever is returned by the implementation to the
     * external caller, reverting and returning the revert data if implementation
     * reverts.
     * @param _implementation - Address to which the function execution is delegated
     */
    function _delegate(address _implementation) private {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())
            // Delegatecall to the implementation, supplying calldata and gas.
            // Out and outsize are set to zero - instead, use the return buffer.
            let result := delegatecall(
                gas(),
                _implementation,
                0,
                calldatasize(),
                0,
                0
            )
            // Copy the returned data from the return buffer.
            returndatacopy(0, 0, returndatasize())
            switch result
            // Delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @notice Call the Upgrade Beacon to get the current implementation contract address
     * @return _implementation Address of the current implementation.
     */
    function _getImplementation()
        private
        view
        returns (address _implementation)
    {
        _implementation = _getImplementation(upgradeBeacon);
    }

    /**
     * @notice Call the Upgrade Beacon to get the current implementation contract address
     * @dev _upgradeBeacon is passed as a parameter so that
     * we can also use this function in the constructor,
     * where we can't access immutable variables.
     * @param _upgradeBeacon Address of the UpgradeBeacon storing the current implementation
     * @return _implementation Address of the current implementation.
     */
    function _getImplementation(address _upgradeBeacon)
        private
        view
        returns (address _implementation)
    {
        // Get the current implementation address from the upgrade beacon.
        (bool _ok, bytes memory _returnData) = _upgradeBeacon.staticcall("");
        // Revert and pass along revert message if call to upgrade beacon reverts.
        require(_ok, string(_returnData));
        // Set the implementation to the address returned from the upgrade beacon.
        _implementation = abi.decode(_returnData, (address));
    }
}

File 2 of 2 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_upgradeBeacon","type":"address"},{"internalType":"bytes","name":"_initializationCalldata","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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