Token USDC

 

Overview [ERC-20]

Price
$1.00 @ 0.000326 Eth (+0.30%)
Fully Diluted Market Cap
Max Total Supply:
1,835,695,436.460242 USDC

Holders:
404,895 ( 0.428%)
 
Balance
1.13383 USDC

Value
$1.14 ( ~0.000370795135877261 Eth) [0.0000%]
0x5869962c78ac8f50b06961e955f2252ba19b3fb9
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Market

Volume (24H):$10,610,970,847.00
Market Capitalization:$32,641,571,252.00
Circulating Supply:32,533,130,579.00 USDC
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Binance
USDC-USDT$0.9994
0.0003248 Eth
$1,220,764,785.0000
1,221,836,496.000 USDC
61.0098%
2
Bybit
BTC-USDC$1.0010
0.0003252 Eth
$699,616,441.0000
10,987.640 BTC
0.0005%
3
Bybit
ETH-USDC$1.0010
0.0003252 Eth
$533,010,975.0000
171,669.811 ETH
0.0086%
4
Uniswap V3 (Ethereum)
0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.0000
0.0003245 Eth
$437,863,887.0000
141,190.893 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2
0.0071%
5
LBank
ETH-USDC$0.9996
0.0003245 Eth
$270,591,970.0000
87,940.330 ETH
0.0044%
6
LBank
BTC-USDC$0.9996
0.0003245 Eth
$256,261,477.0000
4,072.393 BTC
0.0002%
7
Bybit
USDC-USDT$0.9995
0.0003249 Eth
$169,001,325.0000
169,137,217.290 USDC
8.4455%
8
OKX
ETH-USDC$1.0010
0.0003252 Eth
$157,433,586.0000
50,616.602 ETH
0.0025%
9
Bitrue
BTC-USDC$1.0000
0.0003245 Eth
$124,831,318.0000
1,982.725 BTC
0.0001%
10
Tapbit
BTC-USDC$1.0000
0.0003248 Eth
$119,223,288.0000
1,877.468 BTC
0.0001%
11
Tapbit
ETH-USDC$1.0000
0.0003248 Eth
$117,310,558.0000
37,833.680 ETH
0.0019%
12
DigiFinex
USDC-USDT$0.9995
0.0003249 Eth
$104,359,676.0000
104,412,871.000 USDC
5.2136%
13
Bitrue
ETH-USDC$1.0000
0.0003245 Eth
$86,756,258.0000
28,156.219 ETH
0.0014%
14
Binance
BTC-USDC$1.0000
0.0003248 Eth
$71,440,228.0000
1,124.095 BTC
0.0001%
15
LATOKEN
USDC-USDT$0.9998
0.0003248 Eth
$65,832,622.0000
65,844,339.987 USDC
3.2878%
16
BingX
USDC-USDT$1.0000
0.0003250 Eth
$52,810,517.0000
52,811,529.313 USDC
2.6370%
17
Deepcoin
USDC-USDT$0.9998
0.0003245 Eth
$47,373,681.0000
47,840,174.339 USDC
2.3888%
18
Hotcoin Global
ETH-USDC$1.0000
0.0003245 Eth
$46,686,769.0000
15,158.206 ETH
0.0008%
19
BingX
BTC-USDC$1.0010
0.0003252 Eth
$46,385,406.0000
728.552 BTC
0.0000%
20
BingX
ETH-USDC$1.0010
0.0003252 Eth
$32,490,399.0000
10,462.505 ETH
0.0005%
21
Kraken
USDC-EUR$0.9998
0.0003250 Eth
$30,291,224.0000
30,295,939.503 USDC
1.5128%
22
OKX
USDC-USDT$0.9994
0.0003248 Eth
$30,107,321.0000
30,134,555.781 USDC
1.5047%
23
Bitunix
USDC-USDT$0.9996
0.0003245 Eth
$27,740,000.0000
27,751,863.630 USDC
1.3857%
24
Kraken
USDC-USD$1.0000
0.0003248 Eth
$27,097,704.0000
27,097,704.013 USDC
1.3531%
25
Backpack Exchange
SOL-USDC$1.0000
0.0003248 Eth
$26,056,479.0000
186,422.450 SOL
0.0093%
26
Biconomy
ETH-USDC$1.0000
0.0003248 Eth
$25,561,135.0000
8,230.923 ETH
0.0004%
27
Bitget
USDC-USDT$0.9995
0.0003249 Eth
$25,364,158.0000
25,385,164.135 USDC
1.2676%
28
OKX
SOL-USDC$1.0010
0.0003252 Eth
$25,106,038.0000
180,104.677 SOL
0.0090%
29
Aerodrome (Base)
0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913-0X4200000000000000000000000000000000000006$0.9992
0.0003242 Eth
$21,825,674.0000
21,822,376.118 0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913
1.0897%
30
Bybit
SOL-USDC$1.0010
0.0003252 Eth
$21,622,163.0000
155,020.855 SOL
0.0077%
31
DigiFinex
ETH-USDC$0.9995
0.0003249 Eth
$20,186,019.0000
6,567.754 ETH
0.0003%
32
Binance
SOL-USDC$0.9997
0.0003260 Eth
$18,912,101.0000
136,316.310 SOL
0.0068%
33
Binance
AVAX-USDC$0.9996
0.0003245 Eth
$18,560,565.0000
520,468.290 AVAX
0.0260%
34
WhiteBIT
BTC-USDC$1.0000
0.0003245 Eth
$17,681,928.0000
281.041 BTC
0.0000%
35
Kraken
USDC-USDT$0.9994
0.0003248 Eth
$15,616,705.0000
15,626,228.436 USDC
0.7803%
36
MEXC
USDC-USDT$1.0000
0.0003246 Eth
$12,330,874.0000
12,326,106.950 USDC
0.6155%
37
FameEX
USDC-USDT$0.9998
0.0003245 Eth
$12,108,017.0000
12,113,928.165 USDC
0.6049%
38
Bitrue
USDC-USDT$1.0000
0.0003245 Eth
$10,732,339.0000
10,731,300.920 USDC
0.5358%
39
XT.COM
BTC-USDC$1.0010
0.0003252 Eth
$10,700,242.0000
168.239 BTC
0.0000%
40
Vertex (Spot)
WETH-USDC$1.0000
0.0003246 Eth
$9,960,658.0000
3,196.200 WETH
0.0002%
41
KuCoin
BTC-USDC$1.0000
0.0003248 Eth
$9,954,650.0000
158.351 BTC
0.0000%
42
WhiteBIT
ETH-USDC$0.9996
0.0003245 Eth
$8,892,045.0000
2,886.939 ETH
0.0001%
43
XT.COM
ETH-USDC$1.0010
0.0003252 Eth
$8,199,137.0000
2,648.196 ETH
0.0001%
44
Vertex (Spot)
WBTC-USDC$1.0000
0.0003246 Eth
$7,646,117.0000
119.649 WBTC
0.0000%
45
Kraken
ETH-USDC$0.9995
0.0003249 Eth
$7,556,464.0000
2,453.388 ETH
0.0001%
46
Gate.io
USDC-USDT$0.9997
0.0003247 Eth
$7,166,043.0000
7,170,831.510 USDC
0.3581%
47
Coinbase Exchange
USDC-EUR$1.0010
0.0003250 Eth
$7,092,015.0000
7,087,113.620 USDC
0.3539%
48
Phemex
USDC-USDT$0.9996
0.0003245 Eth
$6,149,174.0000
6,151,803.400 USDC
0.3072%
49
OKX
USDT-USDC$1.0010
0.0003252 Eth
$5,794,716.0000
5,788,948.268 USDT
0.2891%
50
KuCoin
USDC-USDT$0.9996
0.0003247 Eth
$5,778,048.0000
5,780,406.710 USDC
0.2886%
51
PointPay
USDC-USDT$0.9999
0.0003245 Eth
$5,769,699.0000
5,772,082.803 USDC
0.2882%
52
Bitget
BTC-USDC$1.0010
0.0003252 Eth
$5,746,588.0000
90.369 BTC
0.0000%
53
Kraken
USDC-GBP$1.0000
0.0003250 Eth
$5,723,950.0000
5,723,676.884 USDC
0.2858%
54
Bitget
ETH-USDC$1.0010
0.0003252 Eth
$4,785,450.0000
1,539.103 ETH
0.0001%
55
PointPay
DOGE-USDC$1.0000
0.0003246 Eth
$4,425,367.0000
28,293,852.724 DOGE
1.4128%
56
Bitstamp
USDC-USD$1.0000
0.0003248 Eth
$4,396,621.0000
4,396,576.976 USDC
0.2195%
57
Biconomy
BTC-USDC$1.0000
0.0003248 Eth
$4,363,273.0000
68.652 BTC
0.0000%
58
Kraken
BTC-USDC$1.0000
0.0003248 Eth
$4,308,923.0000
68.493 BTC
0.0000%
59
Cryptology
BTC-USDC$0.9996
0.0003245 Eth
$4,237,664.0000
67.412 BTC
0.0000%
60
KuCoin
ETH-USDC$1.0000
0.0003248 Eth
$3,751,903.0000
1,219.199 ETH
0.0001%
61
Coinbase Exchange
USDC-GBP$1.0010
0.0003250 Eth
$3,444,074.0000
3,442,097.330 USDC
0.1719%
62
Vindax
USDC-USDT$0.9991
0.0003269 Eth
$3,218,381.0000
3,221,364.000 USDC
0.1609%
63
Dex-Trade
USDC-USDT$0.9998
0.0003246 Eth
$3,003,199.0000
3,003,820.003 USDC
0.1500%
64
Coinbase Exchange
USDT-USDC$1.0000
0.0003248 Eth
$2,974,455.0000
2,974,292.890 USDT
0.1485%
65
Bitstamp
USDC-EUR$1.0000
0.0003250 Eth
$2,911,414.0000
2,911,433.405 USDC
0.1454%
66
Gemini
USDC-USD$0.9994
0.0003248 Eth
$2,789,767.0000
2,791,501.507 USDC
0.1394%
67
BitMart
USDC-USDT$0.9996
0.0003244 Eth
$2,146,490.0000
2,147,301.900 USDC
0.1072%
68
PointPay
SOL-USDC$1.0000
0.0003246 Eth
$1,847,527.0000
13,323.786 SOL
0.0007%
69
VALR
USDT-USDC$1.0000
0.0003246 Eth
$1,716,743.0000
1,715,469.130 USDT
0.0857%
70
KuCoin
USDT-USDC$1.0000
0.0003248 Eth
$1,673,505.0000
1,672,945.554 USDT
0.0835%
71
Kraken
USDC-CAD$0.9992
0.0003248 Eth
$1,604,415.0000
1,605,642.615 USDC
0.0802%
72
PointPay
LTC-USDC$1.0000
0.0003246 Eth
$1,512,484.0000
19,368.265 LTC
0.0010%
73
MEXC
ETH-USDC$1.0000
0.0003246 Eth
$1,492,353.0000
484.137 ETH
0.0000%
74
Dexalot
USDT-USDC$0.9996
0.0003245 Eth
$1,475,087.0000
1,474,679.930 USDT
0.0736%
75
C-Patex
USDC-USDT$0.9997
0.0003245 Eth
$1,468,434.0000
1,468,828.041 USDC
0.0733%
76
MEXC
BTC-USDC$1.0000
0.0003246 Eth
$1,456,675.0000
23.131 BTC
0.0000%
77
PointPay
BCH-USDC$1.0000
0.0003246 Eth
$1,387,710.0000
2,780.864 BCH
0.0001%
78
PointPay
NEAR-USDC$1.0000
0.0003246 Eth
$1,374,071.0000
264,024.386 NEAR
0.0132%
79
PointPay
TRX-USDC$1.0000
0.0003246 Eth
$1,364,440.0000
12,249,059.819 TRX
0.6116%
80
BYDFi
ETH-USDC$1.0000
0.0003246 Eth
$1,355,702.0000
440.186 ETH
0.0000%
81
PointPay
AVAX-USDC$1.0000
0.0003246 Eth
$1,353,385.0000
38,004.740 AVAX
0.0019%
82
Bitfinex
UDC-USD$1.0010
0.0003254 Eth
$1,339,972.0000
1,338,231.873 UDC
0.0668%
83
PointPay
FTM-USDC$1.0000
0.0003246 Eth
$1,018,870.0000
1,540,727.836 FTM
0.0769%
84
WOO X
USDC-USDT$1.0000
0.0003245 Eth
$996,832.0000
996,835.160 USDC
0.0498%
85
BYDFi
USDC-USDT$1.0000
0.0003233 Eth
$973,653.0000
973,205.540 USDC
0.0486%
86
PointPay
ETH-USDC$1.0000
0.0003246 Eth
$964,551.0000
311.875 ETH
0.0000%
87
Toobit
USDC-USDT$0.9998
0.0003245 Eth
$872,970.0000
873,299.000 USDC
0.0436%
88
Dexalot
EUROC-USDC$0.9996
0.0003245 Eth
$590,243.0000
555,860.249 EUROC
0.0278%
89
PointPay
ATOM-USDC$1.0000
0.0003246 Eth
$543,173.0000
66,622.250 ATOM
0.0033%
90
Slex
BTC-USDC$1.0000
0.0003248 Eth
$502,010.0000
7.899 BTC
0.0000%
91
PointPay
UNI-USDC$1.0000
0.0003246 Eth
$453,438.0000
62,403.381 UNI
0.0031%
92
PointPay
BNB-USDC$1.0000
0.0003246 Eth
$441,800.0000
796.119 BNB
0.0000%
93
Slex
USDC-USDT$1.0000
0.0003248 Eth
$348,598.0000
348,755.000 USDC
0.0174%
94
Maverick Protocol
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.0000
0.0003251 Eth
$295,812.0000
295,756.604 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0148%
95
Deribit Spot
USDC-USDT$0.9997
0.0003245 Eth
$231,283.0000
231,369.000 USDC
0.0116%
96
CoinEx
USDC-USDT$0.9984
0.0003241 Eth
$134,250.0000
134,453.488 USDC
0.0067%
97
BitMart
TRX-USDC$1.0000
0.0003248 Eth
$112,111.0000
1,011,852.000 TRX
0.0505%
98
HashKey Exchange
ETH-USDC$1.0000
0.0003246 Eth
$103,225.0000
33.589 ETH
0.0000%
99
Backpack Exchange
USDT-USDC$1.0000
0.0003248 Eth
$68,318.0000
68,212.000 USDT
0.0034%
100
OKX
USDC-EUR$1.0010
0.0003253 Eth
$68,145.0000
68,047.134 USDC
0.0034%

Contract Source Code Verified (Exact Match)

Contract Name:
FiatTokenProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 10000000 runs

Other Settings:
istanbul 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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Deployed Bytecode

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

0000000000000000000000006d0c9a70d85e42ba8b76dc06620d4e988ec8d0c1

-----Decoded View---------------
Arg [0] : implementationContract (address): 0x6D0c9A70D85E42Ba8B76dc06620d4E988ec8D0C1

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000006d0c9a70d85e42ba8b76dc06620d4e988ec8d0c1


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