Token Bridged USDC

 

Overview ERC20

Price
$1.00 @ 0.000316 ETH (+0.03%)
Fully Diluted Market Cap
Total Supply:
295,910,530.929254 USDC.e

Holders:
701,686 addresses
Balance
0 USDC.e

Value
$0.00
0xdf670d697f9a4dd3e80e402e4c007ba9d25fc226
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OVERVIEW

This is a bridged USDC token deployed by Arbitrum Foundation.

Market

Volume (24H):$3,928,569,473.00
Market Capitalization:$33,950,599,480.00
Circulating Supply:33,948,496,823.00 USDC.e
Market Data Source: Coinmarketcap


Update? Click here to update the token ICO / general information
# Exchange Pair Price  24H Volume % Volume
1
Bybit
USDC-USDT$1.00
0.0000154 Btc
$443,586,690.00
443,624,768.280 USDC
45.6537%
2
Binance
USDC-USDT$0.9998
0.0000154 Btc
$346,103,116.00
346,195,481.000 USDC
35.6272%
3
Bybit
ETH-USDC$1.00
0.0000154 Btc
$278,413,616.00
88,150.206 ETH
0.0091%
4
Bybit
BTC-USDC$1.00
0.0000154 Btc
$206,056,643.00
3,172.359 BTC
0.0003%
5
Uniswap V3 (Ethereum)
0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0000154 Btc
$169,683,926.00
53,754.525 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2
0.0055%
6
Bitrue
BTC-USDC$1.00
0.0000154 Btc
$57,230,148.00
879.934 BTC
0.0001%
7
OKX
BTC-USDC$1.00
0.0000154 Btc
$55,490,440.00
854.584 BTC
0.0001%
8
Tapbit
BTC-USDC$1.00
0.0000154 Btc
$54,917,958.00
845.798 BTC
0.0001%
9
Tapbit
ETH-USDC$1.00
0.0000154 Btc
$48,964,077.00
15,504.410 ETH
0.0016%
10
Hotcoin Global
ETH-USDC$0.9999
0.0000154 Btc
$47,727,151.00
15,148.888 ETH
0.0016%
11
OKX
ETH-USDC$1.00
0.0000154 Btc
$43,612,349.00
13,812.165 ETH
0.0014%
12
Bitrue
ETH-USDC$1.00
0.0000154 Btc
$35,935,184.00
11,372.025 ETH
0.0012%
13
Binance
BTC-USDC$1.00
0.0000154 Btc
$33,657,838.00
518.257 BTC
0.0001%
14
Biconomy
ETH-USDC$0.9982
0.0000154 Btc
$30,589,126.00
9,699.085 ETH
0.0010%
15
DigiFinex
USDC-USDT$0.9999
0.0000154 Btc
$29,662,082.00
29,664,375.000 USDC
3.0528%
16
BingX
USDC-USDT$0.9999
0.0000154 Btc
$29,262,530.00
29,265,973.315 USDC
3.0118%
17
DigiFinex
BTC-USDC$1.00
0.0000154 Btc
$16,844,898.00
258.971 BTC
0.0000%
18
BingX
ETH-USDC$1.00
0.0000154 Btc
$14,891,755.00
4,714.755 ETH
0.0005%
19
Bitget
USDC-USDT$0.9999
0.0000154 Btc
$14,669,460.00
14,672,080.271 USDC
1.5099%
20
Binance
ETH-USDC$1.00
0.0000154 Btc
$14,183,438.00
4,490.439 ETH
0.0005%
21
Deepcoin
USDC-USDT$1.00
0.0000154 Btc
$13,632,673.00
13,961,263.059 USDC
1.4368%
22
BingX
BTC-USDC$1.00
0.0000154 Btc
$12,185,041.00
187.579 BTC
0.0000%
23
Backpack Exchange
SOL-USDC$0.9981
0.0000154 Btc
$10,058,422.00
67,245.310 SOL
0.0069%
24
OKX
USDC-USDT$0.9999
0.0000154 Btc
$9,140,305.00
9,141,360.958 USDC
0.9407%
25
OKX
SOL-USDC$1.00
0.0000154 Btc
$8,513,469.00
56,854.131 SOL
0.0059%
26
Vertex (Spot)
WETH-USDC$1.00
0.0000154 Btc
$7,867,925.00
2,481.130 WETH
0.0003%
27
Bitunix
USDC-USDT$0.9999
0.0000154 Btc
$7,753,356.00
7,754,068.733 USDC
0.7980%
28
DigiFinex
ETH-USDC$1.00
0.0000154 Btc
$7,105,881.00
2,248.915 ETH
0.0002%
29
Coinbase Exchange
USDC-EUR$1.00
0.0000154 Btc
$6,350,812.00
6,348,036.450 USDC
0.6533%
30
Binance
SOL-USDC$1.00
0.0000154 Btc
$6,345,364.00
42,362.090 SOL
0.0044%
31
Bitget
BTC-USDC$1.00
0.0000154 Btc
$6,310,419.00
97.131 BTC
0.0000%
32
WhiteBIT
BTC-USDC$1.00
0.0000154 Btc
$6,246,155.00
96.003 BTC
0.0000%
33
Bybit
XRP-USDC$1.00
0.0000154 Btc
$6,134,901.00
11,633,027.820 XRP
1.1972%
34
Binance
AVAX-USDC$1.00
0.0000154 Btc
$5,784,149.00
154,697.540 AVAX
0.0159%
35
Bybit
SOL-USDC$1.00
0.0000154 Btc
$5,676,885.00
37,871.476 SOL
0.0039%
36
WhiteBIT
ETH-USDC$1.00
0.0000154 Btc
$5,005,341.00
1,584.137 ETH
0.0002%
37
Aerodrome (Base)
0X940181A94A35A4569E4529A3CDFB74E38FD98631-0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913$0.9995
0.0000154 Btc
$4,752,650.00
2,782,633.958 0X940181A94A35A4569E4529A3CDFB74E38FD98631
0.2864%
38
Kraken
USDC-EUR$1.001
0.0000154 Btc
$4,498,981.00
4,496,535.402 USDC
0.4627%
39
Bit2Me
USDC-EUR$1.001
0.0000154 Btc
$4,446,571.00
4,442,733.323 USDC
0.4572%
40
Binance
ADA-USDC$1.00
0.0000154 Btc
$3,743,191.00
7,483,091.500 ADA
0.7701%
41
OKX
USDT-USDC$1.00
0.0000154 Btc
$3,511,560.00
3,510,836.631 USDT
0.3613%
42
Bitget
ETH-USDC$1.00
0.0000154 Btc
$3,212,245.00
1,016.236 ETH
0.0001%
43
XT.COM
ETH-USDC$0.9999
0.0000154 Btc
$2,894,703.00
916.567 ETH
0.0001%
44
Cryptology
BTC-USDC$0.9999
0.0000154 Btc
$2,597,797.00
40.116 BTC
0.0000%
45
Vertex (Spot)
WBTC-USDC$1.00
0.0000154 Btc
$2,468,262.00
38.024 WBTC
0.0000%
46
KuCoin
USDC-USDT$1.00
0.0000154 Btc
$2,115,640.00
2,115,591.948 USDC
0.2177%
47
KuCoin
BTC-USDC$1.00
0.0000154 Btc
$1,993,856.00
30.658 BTC
0.0000%
48
Kraken
BTC-USDC$1.00
0.0000154 Btc
$1,876,402.00
28.898 BTC
0.0000%
49
Phemex
USDC-USDT$0.9999
0.0000154 Btc
$1,814,938.00
1,815,076.470 USDC
0.1868%
50
Binance
MATIC-USDC$1.00
0.0000154 Btc
$1,808,658.00
2,514,539.700 MATIC
0.2588%
51
KuCoin
ETH-USDC$1.00
0.0000154 Btc
$1,634,910.00
517.550 ETH
0.0001%
52
Coinbase Exchange
USDC-GBP$1.00
0.0000154 Btc
$1,559,011.00
1,558,891.530 USDC
0.1604%
53
PointPay
DOGE-USDC$0.9981
0.0000154 Btc
$1,513,295.00
9,512,039.720 DOGE
0.9789%
54
Dex-Trade
USDC-USDT$1.00
0.0000154 Btc
$1,419,601.00
1,419,665.000 USDC
0.1461%
55
OKX
XRP-USDC$1.00
0.0000154 Btc
$1,405,197.00
2,665,084.707 XRP
0.2743%
56
Kraken
USDC-USDT$1.00
0.0000154 Btc
$1,331,810.00
1,331,780.092 USDC
0.1371%
57
DeGate
ETH-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0000154 Btc
$1,307,185.00
414.008 ETH
0.0000%
58
Kraken
ETH-USDC$1.00
0.0000154 Btc
$1,304,718.00
413.180 ETH
0.0000%
59
BYDFi
BTC-USDC$1.00
0.0000154 Btc
$1,139,065.00
17.591 BTC
0.0000%
60
Kraken
USDC-GBP$1.00
0.0000154 Btc
$1,099,939.00
1,099,854.755 USDC
0.1132%
61
Dexalot
AVAX-USDC$0.9997
0.0000154 Btc
$1,001,474.00
26,913.637 AVAX
0.0028%
62
PointPay
SOL-USDC$0.9981
0.0000154 Btc
$909,865.00
6,091.600 SOL
0.0006%
63
KuCoin
USDT-USDC$1.00
0.0000154 Btc
$899,070.00
898,989.256 USDT
0.0925%
64
Toobit
USDC-USDT$1.00
0.0000154 Btc
$833,916.00
834,017.000 USDC
0.0858%
65
BYDFi
ETH-USDC$1.00
0.0000154 Btc
$819,524.00
260.193 ETH
0.0000%
66
PointPay
FIL-USDC$0.9981
0.0000154 Btc
$815,582.00
125,190.570 FIL
0.0129%
67
PointPay
NEAR-USDC$0.9981
0.0000154 Btc
$728,948.00
115,865.991 NEAR
0.0119%
68
Backpack Exchange
W-USDC$0.9981
0.0000154 Btc
$686,663.00
1,100,703.190 W
0.1133%
69
BYDFi
USDC-USDT$1.00
0.0000154 Btc
$600,727.00
600,643.570 USDC
0.0618%
70
XT.COM
USDC-USDT$1.00
0.0000154 Btc
$561,988.00
561,927.530 USDC
0.0578%
71
PointPay
LTC-USDC$0.9981
0.0000154 Btc
$544,645.00
6,460.400 LTC
0.0007%
72
C-Patex
USDC-USDT$1.00
0.0000154 Btc
$500,044.00
500,032.763 USDC
0.0515%
73
MEXC
ETH-USDC$1.00
0.0000154 Btc
$461,186.00
146.815 ETH
0.0000%
74
Dexalot
USDT-USDC$0.9997
0.0000154 Btc
$426,714.00
426,684.107 USDT
0.0439%
75
PointPay
TRX-USDC$1.00
0.0000154 Btc
$397,472.00
3,582,752.134 TRX
0.3687%
76
PointPay
FTM-USDC$0.9981
0.0000154 Btc
$387,938.00
515,911.827 FTM
0.0531%
77
Dexalot
EUROC-USDC$0.9999
0.0000154 Btc
$381,659.00
360,077.959 EUROC
0.0371%
78
Kraken
USDC-CAD$1.001
0.0000154 Btc
$363,307.00
362,883.160 USDC
0.0373%
79
HashKey Exchange
USDT-USDC$0.9999
0.0000154 Btc
$357,197.00
356,389.057 USDT
0.0367%
80
PointPay
ETH-USDC$0.9981
0.0000154 Btc
$309,370.00
98.173 ETH
0.0000%
81
BitMart
DAI-USDC$1.00
0.0000154 Btc
$300,417.00
300,479.800 DAI
0.0309%
82
Kraken
USDC-CHF$1.00
0.0000154 Btc
$275,146.00
275,081.685 USDC
0.0283%
83
Bitstamp
BTC-USDC$1.00
0.0000154 Btc
$250,559.00
3.849 BTC
0.0000%
84
Slex
BTC-USDC$1.00
0.0000154 Btc
$244,932.00
3.771 BTC
0.0000%
85
Bitstamp
USDC-EUR$1.00
0.0000154 Btc
$215,979.00
215,878.736 USDC
0.0222%
86
PointPay
ATOM-USDC$0.9981
0.0000154 Btc
$186,052.00
21,478.424 ATOM
0.0022%
87
OKX
LTC-USDC$1.00
0.0000154 Btc
$181,626.00
2,153.417 LTC
0.0002%
88
Kraken
USDC-AUD$0.9992
0.0000154 Btc
$168,892.00
169,029.230 USDC
0.0174%
89
Slex
ETH-USDC$1.00
0.0000154 Btc
$152,536.00
48.294 ETH
0.0000%
90
CoinEx
USDC-USDT$0.9971
0.0000154 Btc
$143,141.00
143,551.036 USDC
0.0148%
91
PointPay
BNB-USDC$0.9981
0.0000154 Btc
$141,497.00
245.324 BNB
0.0000%
92
PointPay
UNI-USDC$1.00
0.0000154 Btc
$127,011.00
16,395.170 UNI
0.0017%
93
Binance US
USDC-USDT$1.00
0.0000154 Btc
$123,101.00
123,086.014 USDC
0.0127%
94
Slex
USDC-USDT$1.00
0.0000154 Btc
$105,988.00
106,000.000 USDC
0.0109%
95
VALR
USDT-USDC$0.9981
0.0000154 Btc
$102,690.00
102,851.002 USDT
0.0106%
96
Deribit Spot
USDC-USDT$0.9999
0.0000154 Btc
$85,062.00
85,059.000 USDC
0.0088%
97
PointPay
XRP-USDC$0.9981
0.0000154 Btc
$73,752.00
140,165.800 XRP
0.0144%
98
HashKey Exchange
ETH-USDC$0.9999
0.0000154 Btc
$48,037.00
15.175 ETH
0.0000%
99
HashKey Exchange
BTC-USDC$0.9999
0.0000154 Btc
$36,251.00
0.557 BTC
0.0000%
100
OKX
USDC-EUR$1.003
0.0000155 Btc
$31,539.00
31,396.188 USDC
0.0032%

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 Arbiscan.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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Deployed Bytecode

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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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