Token USD Coin (Arb1)

 

Overview ERC20

Price
$1.00 @ 0.000816 ETH (-0.14%)
Fully Diluted Market Cap
Total Supply:
633,290,205.230301 USDC

Holders:
247,554 addresses
Balance
0 USDC

Value
$0.00
0x94b9aed7b24a44e622faea76e57ad4d71684bfda
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OVERVIEW

USDC is a fully collateralized US Dollar stablecoin developed by CENTRE, the open source project with Circle being the first of several forthcoming issuers.

Market

Volume (24H):$2,037,221,550.00
Market Capitalization:$43,082,666,188.00
Circulating Supply:43,060,424,626.00 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$1.00
0.0000596 Btc
$296,914,210.00
302,910,337.440 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.2851%
2
MEXC Global
ETH-USDC$1.00
0.0000596 Btc
$161,711,685.00
132,024.243 ETH
0.0001%
3
LBank
ETH-USDC$1.00
0.0000596 Btc
$142,231,005.00
116,049.149 ETH
0.0001%
4
MEXC Global
BTC-USDC$1.00
0.0000596 Btc
$132,187,803.00
7,868.514 BTC
0.0000%
5
Bitforex
USDC-USDT$1.001
0.0000596 Btc
$115,717,951.00
115,643,510.382 USDC
0.1088%
6
Uniswap (v3)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.00
0.0000596 Btc
$86,986,504.00
86,941,547.084 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0818%
7
Bitforex
BTC-USDC$1.00
0.0000596 Btc
$70,098,613.00
4,172.607 BTC
0.0000%
8
BitMart
BTC-USDC$1.00
0.0000596 Btc
$63,798,476.00
3,796.242 BTC
0.0000%
9
LBank
BTC-USDC$1.00
0.0000596 Btc
$52,500,528.00
3,124.682 BTC
0.0000%
10
Uniswap (v3)
0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0000596 Btc
$32,771,780.00
32,753,847.302 0X6B175474E89094C44DA98B954EEDEAC495271D0F
0.0308%
11
Kraken
USDC-USD$0.9999
0.0000595 Btc
$28,276,477.00
28,279,304.811 USDC
0.0266%
12
Uniswap (Arbitrum One)
0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8$1.00
0.0000595 Btc
$27,378,329.00
21,942.612 0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1
0.0000%
13
WhiteBIT
USDC-USDT$1.00
0.0000596 Btc
$25,577,017.00
25,565,965.269 USDC
0.0241%
14
Huobi
USDC-USDT$1.00
0.0000595 Btc
$21,549,655.00
21,549,263.248 USDC
0.0203%
15
Uniswap (v3)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.00
0.0000596 Btc
$19,466,588.00
19,899,693.570 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0187%
16
Kraken
USDC-USDT$1.00
0.0000596 Btc
$18,531,515.00
18,523,507.501 USDC
0.0174%
17
BingX
BTC-USDC$1.001
0.0000596 Btc
$17,651,614.00
1,040.426 BTC
0.0000%
18
Kraken
USDC-EUR$0.9998
0.0000595 Btc
$17,610,133.00
17,613,832.123 USDC
0.0166%
19
BKEX
BTC-USDC$1.00
0.0000596 Btc
$14,918,613.00
879.889 BTC
0.0000%
20
WhiteBIT
BTC-USDC$1.00
0.0000596 Btc
$14,356,639.00
854.544 BTC
0.0000%
21
DigiFinex
USDC-USDT$1.00
0.0000596 Btc
$14,207,164.00
14,204,190.711 USDC
0.0134%
22
Hotbit
USDC-USDT$0.9993
0.0000595 Btc
$14,029,964.00
14,039,335.670 USDC
0.0132%
23
BKEX
ETH-USDC$1.00
0.0000596 Btc
$12,772,066.00
10,223.632 ETH
0.0000%
24
Bybit
ETH-USDC$1.00
0.0000596 Btc
$11,436,047.00
9,333.264 ETH
0.0000%
25
OKX
USDC-USDT$1.00
0.0000596 Btc
$10,707,823.00
10,705,279.539 USDC
0.0101%
26
P2B
USDC-BUSD$1.001
0.0000596 Btc
$9,958,201.00
9,946,079.500 USDC
0.0094%
27
P2B
USDC-USDT$1.00
0.0000595 Btc
$9,924,263.00
9,924,171.000 USDC
0.0093%
28
Bybit
BTC-USDC$1.00
0.0000596 Btc
$9,806,673.00
583.789 BTC
0.0000%
29
Bybit
USDC-USDT$1.00
0.0000596 Btc
$9,485,227.00
9,481,128.800 USDC
0.0089%
30
OKX
ETH-USDC$1.001
0.0000596 Btc
$9,092,534.00
7,278.540 ETH
0.0000%
31
OKX
BTC-USDC$1.001
0.0000596 Btc
$7,935,282.00
468.091 BTC
0.0000%
32
BKEX
USDC-USDT$1.001
0.0000596 Btc
$7,463,807.00
7,460,215.719 USDC
0.0070%
33
DigiFinex
ETH-USDC$1.00
0.0000596 Btc
$6,767,104.00
5,524.980 ETH
0.0000%
34
KyberSwap Elastic (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.00
0.0000596 Btc
$6,553,833.00
6,550,692.834 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0062%
35
BingX
ETH-USDC$1.001
0.0000596 Btc
$6,093,061.00
4,873.382 ETH
0.0000%
36
MEXC Global
DOGE-USDC$1.00
0.0000596 Btc
$5,556,628.00
57,967,987.870 DOGE
0.0546%
37
DigiFinex
BTC-USDC$1.00
0.0000596 Btc
$5,211,230.00
310.165 BTC
0.0000%
38
KuCoin
USDC-USDT$1.00
0.0000596 Btc
$4,358,545.00
4,357,349.331 USDC
0.0041%
39
XT.COM
USDC-USDT$1.001
0.0000596 Btc
$3,613,294.00
3,611,808.500 USDC
0.0034%
40
KuCoin
BTC-USDC$1.00
0.0000596 Btc
$3,277,572.00
195.199 BTC
0.0000%
41
BitMart
ETH-USDC$1.001
0.0000596 Btc
$3,267,983.00
2,665.376 ETH
0.0000%
42
Gemini
USDC-USD$0.9999
0.0000595 Btc
$3,186,618.00
3,186,873.255 USDC
0.0030%
43
ZigZag (Arbitrum)
WETH-USDC$1.001
0.0000596 Btc
$2,946,790.00
2,347.240 WETH
0.0000%
44
Uniswap (v2)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$0.9989
0.0000595 Btc
$2,781,894.00
2,840,588.957 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0027%
45
Sushiswap (Arbitrum One)
0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$1.00
0.0000595 Btc
$2,684,474.00
2,729,675.342 0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8
0.0026%
46
MEXC Global
XRP-USDC$1.00
0.0000596 Btc
$2,544,675.00
6,695,855.430 XRP
0.0063%
47
KuCoin
USDT-USDC$1.00
0.0000596 Btc
$2,510,807.00
2,509,883.956 USDT
0.0024%
48
Sushiswap
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.001
0.0000596 Btc
$2,496,288.00
2,546,004.352 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0024%
49
Maiar
WEGLD-BD4D79-USDC-C76F1F$1.00
0.0000595 Btc
$2,466,389.00
54,936.466 WEGLD-BD4D79
0.0001%
50
KuCoin
ETH-USDC$1.00
0.0000596 Btc
$2,453,866.00
2,003.677 ETH
0.0000%
51
Bitfinex
UDC-USD$0.9998
0.0000595 Btc
$2,440,694.00
2,441,157.990 UDC
0.0023%
52
MEXC Global
EOS-USDC$1.00
0.0000596 Btc
$2,231,826.00
2,380,965.160 EOS
0.0022%
53
Bitget
BTC-USDC$1.00
0.0000596 Btc
$2,114,348.00
124.694 BTC
0.0000%
54
LBank
USDC-USDT$1.00
0.0000596 Btc
$1,408,644.00
1,408,035.238 USDC
0.0013%
55
Kraken
ETH-USDC$1.00
0.0000596 Btc
$1,238,807.00
1,012.023 ETH
0.0000%
56
MEXC Global
TRX-USDC$1.00
0.0000596 Btc
$1,140,242.00
21,457,242.220 TRX
0.0202%
57
Kraken
BTC-USDC$1.00
0.0000596 Btc
$1,090,828.00
64.962 BTC
0.0000%
58
MEXC Global
LTC-USDC$1.00
0.0000596 Btc
$1,085,233.00
14,255.470 LTC
0.0000%
59
Kraken
USDC-GBP$0.9999
0.0000595 Btc
$1,068,112.00
1,068,251.299 USDC
0.0010%
60
Tidex
USDC-USDT$1.00
0.0000595 Btc
$1,002,149.00
1,001,974.498 USDC
0.0009%
61
Binance US
USDC-USD$1.00
0.0000596 Btc
$999,797.00
999,696.627 USDC
0.0009%
62
MEXC Global
SHIB-USDC$1.00
0.0000596 Btc
$959,108.00
105,378,164,735.000 SHIB
99.1648%
63
Bitstamp
USDC-EUR$0.9994
0.0000595 Btc
$936,552.00
937,142.950 USDC
0.0009%
64
MEXC Global
SOL-USDC$1.00
0.0000596 Btc
$899,271.00
65,984.010 SOL
0.0001%
65
Bitget
ETH-USDC$1.00
0.0000596 Btc
$772,527.00
617.449 ETH
0.0000%
66
Tidex
BTC-USDC$1.00
0.0000595 Btc
$717,616.00
42.706 BTC
0.0000%
67
Uniswap (v3)
0X4FABB145D64652A948D72533023F6E7A623C7C53-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0000596 Btc
$628,236.00
627,658.665 0X4FABB145D64652A948D72533023F6E7A623C7C53
0.0006%
68
BitMart
DOGE-USDC$1.001
0.0000596 Btc
$624,655.00
6,512,756.000 DOGE
0.0061%
69
Coinbase Exchange
USDC-EUR$1.00
0.0000596 Btc
$607,581.00
607,389.770 USDC
0.0006%
70
BitMart
USDC-USDT$1.00
0.0000596 Btc
$606,649.00
606,356.260 USDC
0.0006%
71
PancakeSwap (v2)
0X2170ED0880AC9A755FD29B2688956BD959F933F8-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D$1.001
0.0000596 Btc
$603,564.00
482.745 0X2170ED0880AC9A755FD29B2688956BD959F933F8
0.0000%
72
Bitget
USDC-USDT$1.00
0.0000595 Btc
$577,307.00
577,281.305 USDC
0.0005%
73
BitMart
ADA-USDC$1.00
0.0000596 Btc
$561,399.00
1,808,842.000 ADA
0.0017%
74
Bitstamp
USDC-USD$0.9997
0.0000595 Btc
$502,846.00
503,017.434 USDC
0.0005%
75
Okcoin
USDC-USD$1.00
0.0000595 Btc
$409,546.00
409,545.921 USDC
0.0004%
76
PancakeSwap (v2)
0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D-BUSD$0.999
0.0000595 Btc
$384,987.00
384,163.551 0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D
0.0004%
77
Coinbase Exchange
USDT-USDC$1.00
0.0000596 Btc
$364,330.00
364,114.470 USDT
0.0003%
78
Binance US
BTC-USDC$1.00
0.0000596 Btc
$338,962.00
20.171 BTC
0.0000%
79
BKEX
ATOM-USDC$1.00
0.0000596 Btc
$336,661.00
33,642.032 ATOM
0.0000%
80
Coinfield
BTC-USDC$1.00
0.0000596 Btc
$314,388.00
18.716 BTC
0.0000%
81
PancakeSwap (v2)
0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D-USDT$0.9977
0.0000594 Btc
$268,692.00
268,452.589 0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D
0.0003%
82
BKEX
SOL-USDC$1.00
0.0000596 Btc
$262,786.00
18,820.403 SOL
0.0000%
83
Bitget
BCH-USDC$1.00
0.0000596 Btc
$248,608.00
2,243.719 BCH
0.0000%
84
BKEX
NEAR-USDC$1.00
0.0000596 Btc
$217,679.00
123,419.851 NEAR
0.0001%
85
CoinEx
USDC-USDT$1.001
0.0000596 Btc
$169,907.00
169,787.629 USDC
0.0002%
86
BKEX
APE-USDC$1.00
0.0000596 Btc
$167,297.00
40,942.390 APE
0.0000%
87
Bitget
ADA-USDC$1.00
0.0000596 Btc
$162,812.00
516,145.000 ADA
0.0005%
88
Bitget
MATIC-USDC$1.00
0.0000596 Btc
$150,797.00
167,059.700 MATIC
0.0002%
89
Bittrex
USDC-USD$0.9998
0.0000595 Btc
$147,209.00
147,246.150 USDC
0.0001%
90
BitMart
DAI-USDC$1.00
0.0000596 Btc
$127,789.00
127,765.800 DAI
0.0001%
91
KuCoin
BUSD-USDC$1.00
0.0000596 Btc
$99,763.00
99,779.715 BUSD
0.0001%
92
Coinbase Exchange
USDC-GBP$0.9997
0.0000595 Btc
$96,271.00
96,295.510 USDC
0.0001%
93
Bitstamp
BTC-USDC$1.00
0.0000596 Btc
$83,692.00
4.994 BTC
0.0000%
94
BitMart
BUSD-USDC$1.00
0.0000596 Btc
$83,691.00
83,667.200 BUSD
0.0001%
95
Coinsbit
USDC-USDT$1.00
0.0000595 Btc
$82,554.00
82,553.364 USDC
0.0001%
96
Bitget
DOGE-USDC$1.00
0.0000596 Btc
$81,085.00
818,462.231 DOGE
0.0008%
97
Bitvavo
USDC-EUR$1.001
0.0000596 Btc
$80,538.00
80,479.949 USDC
0.0001%
98
Bitget
TRX-USDC$1.00
0.0000596 Btc
$77,307.00
1,455,477.400 TRX
0.0014%
99
Bitget
EOS-USDC$1.00
0.0000596 Btc
$72,525.00
76,418.000 EOS
0.0001%
100
CoinJar Exchange
USDC-AUD$1.001
0.0000596 Btc
$65,777.00
65,696.324 USDC
0.0001%

Contract Source Code Verified (Exact Match)

Contract Name:
TransparentUpgradeableProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license
/**
 *Submitted for verification at Etherscan.io on 2021-09-09
*/

// 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);
            }
        }
    }
}


/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        // solhint-disable-next-line no-inline-assembly
        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())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 { revert(0, returndatasize()) }
            default { return(0, returndatasize()) }
        }
    }

    /**
     * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback () external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive () external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {
    }
}


/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 *
 * Upgradeability is only provided internally through {_upgradeTo}. For an externally upgradeable proxy see
 * {TransparentUpgradeableProxy}.
 */
contract UpgradeableProxy is Proxy {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializating the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) public payable {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        _setImplementation(_logic);
        if(_data.length > 0) {
            Address.functionDelegateCall(_logic, _data);
        }
    }

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 private constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        bytes32 slot = _IMPLEMENTATION_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal virtual {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "UpgradeableProxy: new implementation is not a contract");

        bytes32 slot = _IMPLEMENTATION_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newImplementation)
        }
    }
}


/**
 * @dev This contract implements a proxy that is upgradeable by an admin.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches one of the admin functions exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
 * implementation. If the admin tries to call a function on the implementation it will fail with an error that says
 * "admin cannot fallback to proxy target".
 *
 * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
 * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
 * to sudden errors when trying to call a function from the proxy implementation.
 *
 * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
 * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
 */
contract TransparentUpgradeableProxy is UpgradeableProxy {
    /**
     * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
     * optionally initialized with `_data` as explained in {UpgradeableProxy-constructor}.
     */
    constructor(address _logic, address admin_, bytes memory _data) public payable UpgradeableProxy(_logic, _data) {
        assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
        _setAdmin(admin_);
    }

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 private constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Returns the current admin.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function admin() external ifAdmin returns (address admin_) {
        admin_ = _admin();
    }

    /**
     * @dev Returns the current implementation.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
     * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
     */
    function implementation() external ifAdmin returns (address implementation_) {
        implementation_ = _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
     */
    function changeAdmin(address newAdmin) external virtual ifAdmin {
        require(newAdmin != address(0), "TransparentUpgradeableProxy: new admin is the zero address");
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the implementation of the proxy.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
     */
    function upgradeTo(address newImplementation) external virtual ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
     * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
     * proxied contract.
     *
     * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data) external payable virtual ifAdmin {
        _upgradeTo(newImplementation);
        Address.functionDelegateCall(newImplementation, data);
    }

    /**
     * @dev Returns the current admin.
     */
    function _admin() internal view virtual returns (address adm) {
        bytes32 slot = _ADMIN_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        bytes32 slot = _ADMIN_SLOT;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
     */
    function _beforeFallback() internal virtual override {
        require(msg.sender != _admin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
        super._beforeFallback();
    }
}

Contract Security Audit

Contract ABI

[{"inputs": [{"internalType": "address","name": "_logic","type": "address"},{"internalType": "address","name": "admin_","type": "address"},{"internalType": "bytes","name": "_data","type": "bytes"}],"stateMutability": "payable","type": "constructor"},{"anonymous": false,"inputs": [{"indexed": false,"internalType": "address","name": "previousAdmin","type": "address"},{"indexed": false,"internalType": "address","name": "newAdmin","type": "address"}],"name": "AdminChanged","type": "event"},{"anonymous": false,"inputs": [{"indexed": true,"internalType": "address","name": "implementation","type": "address"}],"name": "Upgraded","type": "event"},{"stateMutability": "payable","type": "fallback"},{"inputs": [],"name": "admin","outputs": [{"internalType": "address","name": "admin_","type": "address"}],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "address","name": "newAdmin","type": "address"}],"name": "changeAdmin","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [],"name": "implementation","outputs": [{"internalType": "address","name": "implementation_","type": "address"}],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "address","name": "newImplementation","type": "address"}],"name": "upgradeTo","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "address","name": "newImplementation","type": "address"},{"internalType": "bytes","name": "data","type": "bytes"}],"name": "upgradeToAndCall","outputs": [],"stateMutability": "payable","type": "function"},{"stateMutability": "payable","type": "receive"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000001efb3f88bc88f03fd1804a5c53b7141bbef5ded8000000000000000000000000d570ace65c43af47101fc6250fd6fc63d1c22a86000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _logic (address): 0x1efb3f88bc88f03fd1804a5c53b7141bbef5ded8
Arg [1] : admin_ (address): 0xd570ace65c43af47101fc6250fd6fc63d1c22a86
Arg [2] : _data (bytes): 0x

-----Encoded View---------------


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