Token USD Coin

 

Overview [ERC-20]

Price
$1.00 @ 0.000446 Eth (+0.03%)
Fully Diluted Market Cap
Max Total Supply:
47,217,129.791725 USDC

Holders:
20,212 ( 0.069%)
Balance
0 USDC

Value
$0.00
0x06040158f9dd01fb6cc71ad99ec854c1a5a69ee9
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Market

Volume (24H):$11,893,553,921.00
Market Capitalization:$24,301,474,414.00
Circulating Supply:24,287,850,676.00 USDC
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Bybit
ETH-USDC$1.0010
0.0004457 Eth
$641,999,379.0000
283,214.778 ETH
0.0306%
2
Bybit
BTC-USDC$1.0010
0.0004457 Eth
$529,253,160.0000
12,054.772 BTC
0.0013%
3
Binance
USDC-USDT$0.9999
0.0004461 Eth
$416,005,829.0000
416,028,970.000 USDC
45.0146%
4
Uniswap V3 (Ethereum)
0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9989
0.0004450 Eth
$258,900,316.0000
114,604.146 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2
0.0124%
5
LBank
ETH-USDC$1.0000
0.0004455 Eth
$180,219,304.0000
80,320.262 ETH
0.0087%
6
LBank
BTC-USDC$1.0000
0.0004455 Eth
$173,109,582.0000
3,941.949 BTC
0.0004%
7
DigiFinex
BTC-USDC$1.0000
0.0004455 Eth
$114,673,248.0000
2,611.204 BTC
0.0003%
8
Bitrue
BTC-USDC$1.0000
0.0004455 Eth
$96,040,976.0000
2,186.431 BTC
0.0002%
9
Bybit
USDC-USDT$1.0000
0.0004455 Eth
$95,621,252.0000
95,598,992.960 USDC
10.3439%
10
Bitforex
USDC-USDT$1.0000
0.0004454 Eth
$78,690,944.0000
78,690,247.410 USDC
8.5143%
11
OKX
BTC-USDC$1.0000
0.0004455 Eth
$72,975,902.0000
1,662.857 BTC
0.0002%
12
Biconomy
BTC-USDC$1.0000
0.0004455 Eth
$71,120,361.0000
1,620.840 BTC
0.0002%
13
Binance
BTC-USDC$1.0000
0.0004455 Eth
$60,090,927.0000
1,368.762 BTC
0.0001%
14
Hotcoin Global
BTC-USDC$1.0000
0.0004455 Eth
$58,379,600.0000
1,329.103 BTC
0.0001%
15
Biconomy
ETH-USDC$1.0000
0.0004455 Eth
$53,004,705.0000
23,394.582 ETH
0.0025%
16
BingX
ETH-USDC$1.0010
0.0004457 Eth
$48,802,274.0000
21,529.788 ETH
0.0023%
17
LATOKEN
USDC-USDT$1.0000
0.0004454 Eth
$46,578,393.0000
46,578,912.240 USDC
5.0399%
18
Bitrue
ETH-USDC$1.0000
0.0004455 Eth
$45,322,866.0000
20,190.437 ETH
0.0022%
19
DigiFinex
ETH-USDC$1.0000
0.0004455 Eth
$43,668,113.0000
19,457.091 ETH
0.0021%
20
Binance
ETH-USDC$1.0000
0.0004455 Eth
$38,913,618.0000
17,168.865 ETH
0.0019%
21
BingX
BTC-USDC$1.0010
0.0004457 Eth
$38,826,906.0000
883.833 BTC
0.0001%
22
OKX
ETH-USDC$1.0000
0.0004455 Eth
$29,276,444.0000
12,922.584 ETH
0.0014%
23
KuCoin
BTC-USDC$0.9999
0.0004454 Eth
$28,604,720.0000
651.614 BTC
0.0001%
24
OKX
USDC-USDT$1.0000
0.0004454 Eth
$23,065,170.0000
23,066,486.407 USDC
2.4958%
25
Kraken
USDC-USD$1.0000
0.0004455 Eth
$23,032,601.0000
23,032,600.665 USDC
2.4921%
26
WhiteBIT
USDC-USDT$0.9993
0.0004452 Eth
$22,546,200.0000
22,561,376.641 USDC
2.4412%
27
LBank
USDC-USDT$1.0000
0.0004454 Eth
$21,162,581.0000
21,162,393.702 USDC
2.2898%
28
BingX
USDC-USDT$1.0000
0.0004455 Eth
$20,001,340.0000
19,996,994.580 USDC
2.1637%
29
Kraken
USDC-EUR$0.9998
0.0004454 Eth
$16,299,261.0000
16,302,105.579 USDC
1.7639%
30
KuCoin
ETH-USDC$0.9999
0.0004454 Eth
$16,296,904.0000
7,263.304 ETH
0.0008%
31
Deepcoin
USDC-USDT$1.0000
0.0004456 Eth
$16,106,244.0000
17,184,964.120 USDC
1.8594%
32
HitBTC
BTC-USDC$1.0000
0.0004455 Eth
$15,808,734.0000
360.108 BTC
0.0000%
33
FMFW.io
BTC-USDC$1.0000
0.0004455 Eth
$15,805,704.0000
359.808 BTC
0.0000%
34
MEXC
USDC-USDT$1.0000
0.0004455 Eth
$14,333,429.0000
14,333,036.950 USDC
1.5508%
35
Bybit
SOL-USDC$1.0010
0.0004457 Eth
$14,118,748.0000
221,812.422 SOL
0.0240%
36
DigiFinex
USDC-USDT$0.9999
0.0004454 Eth
$11,732,457.0000
11,733,526.317 USDC
1.2696%
37
Hotcoin Global
USDC-USDT$0.9999
0.0004455 Eth
$9,544,564.0000
9,545,258.000 USDC
1.0328%
38
Bitget
USDC-USDT$1.0000
0.0004455 Eth
$9,068,302.0000
9,068,792.656 USDC
0.9812%
39
Coinbase Exchange
USDC-EUR$1.0000
0.0004452 Eth
$8,659,501.0000
8,658,214.090 USDC
0.9368%
40
Hotcoin Global
ETH-USDC$1.0000
0.0004455 Eth
$8,298,584.0000
3,697.231 ETH
0.0004%
41
Bybit
XRP-USDC$1.0010
0.0004457 Eth
$7,277,629.0000
11,600,658.420 XRP
1.2552%
42
HitBTC
USDT-USDC$1.0000
0.0004455 Eth
$6,384,421.0000
6,383,624.000 USDT
0.6907%
43
FMFW.io
USDT-USDC$1.0000
0.0004455 Eth
$6,383,077.0000
6,382,711.000 USDT
0.6906%
44
Kraken
BTC-USDC$1.0000
0.0004455 Eth
$6,349,783.0000
144.594 BTC
0.0000%
45
Bitunix
USDC-USDT$1.0000
0.0004456 Eth
$6,323,816.0000
6,321,619.800 USDC
0.6840%
46
XT.COM
BTC-USDC$1.0000
0.0004455 Eth
$6,005,301.0000
136.799 BTC
0.0000%
47
OKX
USDT-USDC$1.0000
0.0004455 Eth
$5,751,595.0000
5,751,185.931 USDT
0.6223%
48
HitBTC
ETH-USDC$1.0000
0.0004455 Eth
$5,405,179.0000
2,385.686 ETH
0.0003%
49
FMFW.io
ETH-USDC$1.0000
0.0004455 Eth
$5,353,006.0000
2,384.904 ETH
0.0003%
50
Kraken
USDC-USDT$0.9999
0.0004454 Eth
$5,208,052.0000
5,208,527.036 USDC
0.5636%
51
KuCoin
USDC-USDT$0.9997
0.0004454 Eth
$4,907,944.0000
4,909,244.092 USDC
0.5312%
52
XT.COM
ETH-USDC$1.0000
0.0004455 Eth
$3,885,428.0000
1,715.063 ETH
0.0002%
53
Deribit Spot
ETH-USDC$1.0010
0.0004457 Eth
$3,853,563.0000
1,699.944 ETH
0.0002%
54
Coinsbit
BTC-USDC$1.0000
0.0004455 Eth
$3,679,506.0000
83.973 BTC
0.0000%
55
Gemini
USDC-USD$0.9998
0.0004454 Eth
$3,625,928.0000
3,626,834.285 USDC
0.3924%
56
Bitrue
USDC-USDT$0.9999
0.0004454 Eth
$3,514,693.0000
3,515,013.890 USDC
0.3803%
57
Coinbase Exchange
USDC-GBP$1.0010
0.0004455 Eth
$3,481,936.0000
3,479,352.830 USDC
0.3765%
58
Bitget
BTC-USDC$1.0000
0.0004455 Eth
$3,333,319.0000
75.972 BTC
0.0000%
59
Kraken
ETH-USDC$1.0000
0.0004455 Eth
$2,969,464.0000
1,321.383 ETH
0.0001%
60
KuCoin
USDT-USDC$0.9999
0.0004454 Eth
$2,951,502.0000
2,951,717.160 USDT
0.3194%
61
Cryptology
BTC-USDC$1.0000
0.0004455 Eth
$2,881,564.0000
65.583 BTC
0.0000%
62
Bitget
ETH-USDC$1.0000
0.0004455 Eth
$2,853,030.0000
1,259.151 ETH
0.0001%
63
Bitstamp
USDC-USD$1.0000
0.0004455 Eth
$2,646,796.0000
2,646,717.000 USDC
0.2864%
64
Maverick Protocol
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.0010
0.0004457 Eth
$2,457,690.0000
2,456,267.038 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.2658%
65
Kraken
USDC-GBP$1.0000
0.0004456 Eth
$2,262,515.0000
2,261,730.669 USDC
0.2447%
66
Phemex
USDC-USDT$0.9997
0.0004454 Eth
$2,198,935.0000
2,199,496.018 USDC
0.2380%
67
OKX
SOL-USDC$1.0000
0.0004455 Eth
$2,120,639.0000
33,326.154 SOL
0.0036%
68
MEXC
BTC-USDC$1.0000
0.0004455 Eth
$2,118,066.0000
48.237 BTC
0.0000%
69
Pionex
USDC-USDT$1.0000
0.0004455 Eth
$1,907,418.0000
1,907,271.670 USDC
0.2064%
70
OKX
XRP-USDC$1.0000
0.0004455 Eth
$1,796,087.0000
2,856,770.330 XRP
0.3091%
71
Coinsbit
ETH-USDC$1.0000
0.0004455 Eth
$1,508,448.0000
673.101 ETH
0.0001%
72
MEXC
ETH-USDC$1.0000
0.0004455 Eth
$1,472,900.0000
656.282 ETH
0.0001%
73
Coinbase Exchange
USDT-USDC$1.0010
0.0004455 Eth
$1,467,767.0000
1,466,490.450 USDT
0.1587%
74
C-Patex
USDC-USDT$1.0000
0.0004454 Eth
$1,361,995.0000
1,361,982.500 USDC
0.1474%
75
Gate.io
USDC-USDT$0.9999
0.0004455 Eth
$1,338,008.0000
1,338,125.084 USDC
0.1448%
76
BitMart
BTC-USDC$1.0000
0.0004455 Eth
$1,120,915.0000
25.530 BTC
0.0000%
77
Kraken
USDC-CAD$0.9989
0.0004450 Eth
$1,116,733.0000
1,117,990.006 USDC
0.1210%
78
Bitget
USDV-USDC$1.0000
0.0004455 Eth
$1,113,303.0000
1,114,098.680 USDV
0.1205%
79
BYDFi
BTC-USDC$1.0000
0.0004457 Eth
$1,063,212.0000
24.211 BTC
0.0000%
80
KuCoin
XRP-USDC$0.9999
0.0004454 Eth
$1,058,222.0000
1,670,370.008 XRP
0.1807%
81
BitMart
USDC-USDT$1.0000
0.0004455 Eth
$962,065.0000
962,086.560 USDC
0.1041%
82
Toobit
USDC-USDT$1.0000
0.0004456 Eth
$950,643.0000
950,379.000 USDC
0.1028%
83
Binance US
USDC-USDT$1.0000
0.0004457 Eth
$777,798.0000
777,543.216 USDC
0.0841%
84
Coinsbit
USDC-USDT$0.9999
0.0004454 Eth
$673,631.0000
673,698.636 USDC
0.0729%
85
Kraken
USDC-AUD$0.9998
0.0004454 Eth
$645,324.0000
645,430.798 USDC
0.0698%
86
CEX.IO
USDC-EUR$0.9994
0.0004452 Eth
$593,359.0000
594,717.045 USDC
0.0643%
87
P2B
USDC-USDT$1.0000
0.0004454 Eth
$502,181.0000
502,176.500 USDC
0.0543%
88
XT.COM
USDC-USDT$1.0000
0.0004456 Eth
$417,860.0000
417,746.690 USDC
0.0452%
89
WOO X
USDC-USDT$1.0000
0.0004455 Eth
$397,082.0000
397,002.100 USDC
0.0430%
90
BitMart
ETH-USDC$1.0000
0.0004455 Eth
$387,016.0000
172.489 ETH
0.0000%
91
WhiteBIT
BTC-USDC$1.0000
0.0004455 Eth
$282,407.0000
6.430 BTC
0.0000%
92
CoinJar Exchange
USDC-AUD$0.9985
0.0004448 Eth
$254,239.0000
254,614.217 USDC
0.0275%
93
Bitforex
LTC-USDC$1.0000
0.0004455 Eth
$152,703.0000
2,101.254 LTC
0.0002%
94
CoinEx
USDC-USDT$0.9995
0.0004452 Eth
$125,865.0000
125,882.659 USDC
0.0136%
95
MEXC
SOL-USDC$1.0000
0.0004455 Eth
$111,503.0000
1,762.930 SOL
0.0002%
96
BitMart
TRX-USDC$1.0000
0.0004455 Eth
$91,474.0000
872,980.000 TRX
0.0945%
97
Nominex
BTC-USDC$1.0000
0.0004455 Eth
$83,994.0000
1.912 BTC
0.0000%
98
BitMart
APE-USDC$1.0000
0.0004455 Eth
$60,974.0000
37,211.400 APE
0.0040%
99
DeGate
ETH-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.0010
0.0004459 Eth
$32,551.0000
14.379 ETH
0.0000%
100
VALR
USDT-USDC$1.0010
0.0004457 Eth
$23,081.0000
23,064.534 USDT
0.0025%
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
FiatTokenProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 10000000 runs

Other Settings:
default evmVersion
File 1 of 5 : FiatTokenProxy.sol
/**
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2018-2020 CENTRE SECZ
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity 0.6.12;

import {
    AdminUpgradeabilityProxy
} from "../upgradeability/AdminUpgradeabilityProxy.sol";

/**
 * @title FiatTokenProxy
 * @dev This contract proxies FiatToken calls and enables FiatToken upgrades
 */
contract FiatTokenProxy is AdminUpgradeabilityProxy {
    constructor(address implementationContract)
        public
        AdminUpgradeabilityProxy(implementationContract)
    {}
}

File 2 of 5 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

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

File 3 of 5 : UpgradeabilityProxy.sol
/**
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2018 zOS Global Limited.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity 0.6.12;

import { Proxy } from "./Proxy.sol";
import { Address } from "@openzeppelin/contracts/utils/Address.sol";

/**
 * @notice This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 * @dev Forked from https://github.com/zeppelinos/zos-lib/blob/8a16ef3ad17ec7430e3a9d2b5e3f39b8204f8c8d/contracts/upgradeability/UpgradeabilityProxy.sol
 * Modifications:
 * 1. Reformat, conform to Solidity 0.6 syntax, and add error messages (5/13/20)
 * 2. Use Address utility library from the latest OpenZeppelin (5/13/20)
 */
contract UpgradeabilityProxy is Proxy {
    /**
     * @dev Emitted when the implementation is upgraded.
     * @param implementation Address of the new implementation.
     */
    event Upgraded(address implementation);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "org.zeppelinos.proxy.implementation", and is
     * validated in the constructor.
     */
    bytes32
        private constant IMPLEMENTATION_SLOT = 0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3;

    /**
     * @dev Contract constructor.
     * @param implementationContract Address of the initial implementation.
     */
    constructor(address implementationContract) public {
        assert(
            IMPLEMENTATION_SLOT ==
                keccak256("org.zeppelinos.proxy.implementation")
        );

        _setImplementation(implementationContract);
    }

    /**
     * @dev Returns the current implementation.
     * @return impl Address of the current implementation
     */
    function _implementation() internal override view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     * @param newImplementation Address of the new implementation.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Sets the implementation address of the proxy.
     * @param newImplementation Address of the new implementation.
     */
    function _setImplementation(address newImplementation) private {
        require(
            Address.isContract(newImplementation),
            "Cannot set a proxy implementation to a non-contract address"
        );

        bytes32 slot = IMPLEMENTATION_SLOT;

        assembly {
            sstore(slot, newImplementation)
        }
    }
}

File 4 of 5 : Proxy.sol
/**
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2018 zOS Global Limited.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity 0.6.12;

/**
 * @notice Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 * @dev Forked from https://github.com/zeppelinos/zos-lib/blob/8a16ef3ad17ec7430e3a9d2b5e3f39b8204f8c8d/contracts/upgradeability/Proxy.sol
 * Modifications:
 * 1. Reformat and conform to Solidity 0.6 syntax (5/13/20)
 */
abstract contract Proxy {
    /**
     * @dev Fallback function.
     * Implemented entirely in `_fallback`.
     */
    fallback() external payable {
        _fallback();
    }

    /**
     * @return The Address of the implementation.
     */
    function _implementation() internal virtual view returns (address);

    /**
     * @dev Delegates execution to an implementation contract.
     * This is a low level function that doesn't return to its internal call site.
     * It will return to the external caller whatever the implementation returns.
     * @param implementation Address to delegate.
     */
    function _delegate(address implementation) internal {
        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 Function that is run as the first thing in the fallback function.
     * Can be redefined in derived contracts to add functionality.
     * Redefinitions must call super._willFallback().
     */
    function _willFallback() internal virtual {}

    /**
     * @dev fallback implementation.
     * Extracted to enable manual triggering.
     */
    function _fallback() internal {
        _willFallback();
        _delegate(_implementation());
    }
}

File 5 of 5 : AdminUpgradeabilityProxy.sol
/**
 * SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2018 zOS Global Limited.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

pragma solidity 0.6.12;

import { UpgradeabilityProxy } from "./UpgradeabilityProxy.sol";

/**
 * @notice This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * @dev Forked from https://github.com/zeppelinos/zos-lib/blob/8a16ef3ad17ec7430e3a9d2b5e3f39b8204f8c8d/contracts/upgradeability/AdminUpgradeabilityProxy.sol
 * Modifications:
 * 1. Reformat, conform to Solidity 0.6 syntax, and add error messages (5/13/20)
 * 2. Remove ifAdmin modifier from admin() and implementation() (5/13/20)
 */
contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
    /**
     * @dev Emitted when the administration has been transferred.
     * @param previousAdmin Address of the previous admin.
     * @param newAdmin Address of the new admin.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "org.zeppelinos.proxy.admin", and is
     * validated in the constructor.
     */
    bytes32
        private constant ADMIN_SLOT = 0x10d6a54a4754c8869d6886b5f5d7fbfa5b4522237ea5c60d11bc4e7a1ff9390b;

    /**
     * @dev Modifier to check whether the `msg.sender` is the admin.
     * If it is, it will run the function. Otherwise, it will delegate the call
     * to the implementation.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @dev Contract constructor.
     * It sets the `msg.sender` as the proxy administrator.
     * @param implementationContract address of the initial implementation.
     */
    constructor(address implementationContract)
        public
        UpgradeabilityProxy(implementationContract)
    {
        assert(ADMIN_SLOT == keccak256("org.zeppelinos.proxy.admin"));

        _setAdmin(msg.sender);
    }

    /**
     * @return The address of the proxy admin.
     */
    function admin() external view returns (address) {
        return _admin();
    }

    /**
     * @return The address of the implementation.
     */
    function implementation() external view returns (address) {
        return _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * Only the current admin can call this function.
     * @param newAdmin Address to transfer proxy administration to.
     */
    function changeAdmin(address newAdmin) external ifAdmin {
        require(
            newAdmin != address(0),
            "Cannot change the admin of a proxy to the zero address"
        );
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy.
     * Only the admin can call this function.
     * @param newImplementation Address of the new implementation.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy and call a function
     * on the new implementation.
     * This is useful to initialize the proxied contract.
     * @param newImplementation Address of the new implementation.
     * @param data Data to send as msg.data in the low level call.
     * It should include the signature and the parameters of the function to be
     * called, as described in
     * https://solidity.readthedocs.io/en/develop/abi-spec.html#function-selector-and-argument-encoding.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data)
        external
        payable
        ifAdmin
    {
        _upgradeTo(newImplementation);
        // prettier-ignore
        // solhint-disable-next-line avoid-low-level-calls
        (bool success,) = address(this).call{value: msg.value}(data);
        // solhint-disable-next-line reason-string
        require(success);
    }

    /**
     * @return adm The admin slot.
     */
    function _admin() internal view returns (address adm) {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Sets the address of the proxy admin.
     * @param newAdmin Address of the new proxy admin.
     */
    function _setAdmin(address newAdmin) internal {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Only fall back when the sender is not the admin.
     */
    function _willFallback() internal override {
        require(
            msg.sender != _admin(),
            "Cannot call fallback function from the proxy admin"
        );
        super._willFallback();
    }
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 10000000
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"implementationContract","type":"address"}],"stateMutability":"nonpayable","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":false,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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"}]

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

000000000000000000000000bd17deee53a58b48548117a11a2e7bbf2d0d6fa7

-----Decoded View---------------
Arg [0] : implementationContract (address): 0xbd17DEee53a58B48548117a11a2E7bbF2D0d6Fa7

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000bd17deee53a58b48548117a11a2e7bbf2d0d6fa7


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