Token Bridged USDC
Circle has introduced Native USDC to Arbitrum. While Bridged USDC will function on Arbitrum, it won't be fungible with Circle's native smart contract.
Overview ERC20
Price
$0.99 @ 0.000284 ETH (-0.64%)
Fully Diluted Market Cap
Total Supply:
329,732,098.538709 USDC.e
Holders:
692,377 addresses
Contract:
Decimals:
6
Official Site:
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OVERVIEW
This is a bridged USDC token deployed by Arbitrum Foundation.Market
Volume (24H) | : | $6,683,572,018.00 |
Market Capitalization | : | $32,409,662,635.00 |
Circulating Supply | : | 32,448,012,046.00 USDC.e |
Market Data Source: Coinmarketcap |
Update? Click here to update the token ICO / general information
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | USDC-USDT | $1.00 0.0000143 Btc | $795,924,756.00 795,676,670.000 USDC | 51.2761% |
2 | Bybit | BTC-USDC | $0.9999 0.0000144 Btc | $537,663,334.00 7,633.635 BTC | 0.0005% |
3 | Bybit | USDC-USDT | $1.001 0.0000144 Btc | $279,468,871.00 279,076,519.250 USDC | 17.9847% |
4 | Backpack Exchange | SOL-USDC | $0.9999 0.0000144 Btc | $274,480,576.00 1,468,563.020 SOL | 0.0946% |
5 | Uniswap V3 (Ethereum) | 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9991 0.0000144 Btc | $242,887,696.00 68,394.711 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | 0.0044% |
6 | LBank | ETH-USDC | $0.9987 0.0000144 Btc | $195,022,528.00 55,895.626 ETH | 0.0036% |
7 | Hotcoin Global | BTC-USDC | $1.00 0.0000143 Btc | $188,140,076.00 2,694.995 BTC | 0.0002% |
8 | Bybit | ETH-USDC | $0.9999 0.0000144 Btc | $184,166,726.00 51,863.316 ETH | 0.0033% |
9 | LBank | BTC-USDC | $0.9987 0.0000144 Btc | $184,107,891.00 2,656.150 BTC | 0.0002% |
10 | Biconomy | BTC-USDC | $0.9998 0.0000143 Btc | $87,557,822.00 1,242.866 BTC | 0.0001% |
11 | Biconomy | ETH-USDC | $0.9998 0.0000143 Btc | $86,962,512.00 24,453.741 ETH | 0.0016% |
12 | Tapbit | ETH-USDC | $0.9999 0.0000144 Btc | $79,439,875.00 22,372.466 ETH | 0.0014% |
13 | Bitrue | BTC-USDC | $1.001 0.0000143 Btc | $79,303,803.00 1,135.933 BTC | 0.0001% |
14 | Tapbit | BTC-USDC | $0.9999 0.0000144 Btc | $76,882,623.00 1,092.441 BTC | 0.0001% |
15 | DigiFinex | USDC-USDT | $1.001 0.0000144 Btc | $72,676,977.00 72,599,248.000 USDC | 4.6785% |
16 | LATOKEN | USDC-USDT | $1.00 0.0000143 Btc | $67,394,611.00 67,380,218.744 USDC | 4.3422% |
17 | OKX | BTC-USDC | $0.9999 0.0000144 Btc | $67,194,678.00 953.849 BTC | 0.0001% |
18 | Hotcoin Global | ETH-USDC | $0.9987 0.0000143 Btc | $53,243,459.00 15,152.843 ETH | 0.0010% |
19 | Bitrue | ETH-USDC | $0.9999 0.0000143 Btc | $53,025,694.00 15,080.245 ETH | 0.0010% |
20 | OKX | ETH-USDC | $0.9999 0.0000144 Btc | $49,262,964.00 13,865.037 ETH | 0.0009% |
21 | BingX | USDC-USDT | $1.001 0.0000144 Btc | $47,694,540.00 47,627,103.114 USDC | 3.0693% |
22 | Binance | BTC-USDC | $0.9999 0.0000144 Btc | $41,943,369.00 596.159 BTC | 0.0000% |
23 | OKX | USDC-USDT | $1.001 0.0000144 Btc | $38,979,176.00 38,925,403.482 USDC | 2.5085% |
24 | BingX | BTC-USDC | $0.9999 0.0000144 Btc | $35,923,418.00 510.026 BTC | 0.0000% |
25 | Deepcoin | USDC-USDT | $0.9981 0.0000144 Btc | $31,257,184.00 32,970,732.897 USDC | 2.1247% |
26 | Bitunix | USDC-USDT | $1.001 0.0000143 Btc | $30,393,765.00 30,376,969.983 USDC | 1.9576% |
27 | LBank | USDC-USDT | $0.9986 0.0000144 Btc | $22,903,726.00 22,936,603.890 USDC | 1.4781% |
28 | Bitget | USDC-USDT | $1.001 0.0000144 Btc | $22,838,195.00 22,809,893.826 USDC | 1.4699% |
29 | DigiFinex | BTC-USDC | $0.9997 0.0000144 Btc | $21,931,471.00 316.429 BTC | 0.0000% |
30 | Kraken | USDC-USD | $1.00 0.0000144 Btc | $16,199,845.00 16,197,255.871 USDC | 1.0438% |
31 | Binance | ETH-USDC | $0.998 0.0000144 Btc | $12,845,269.00 3,624.421 ETH | 0.0002% |
32 | BingX | ETH-USDC | $0.9999 0.0000144 Btc | $12,494,632.00 3,518.414 ETH | 0.0002% |
33 | Bybit | SOL-USDC | $0.9999 0.0000144 Btc | $12,476,254.00 66,586.162 SOL | 0.0043% |
34 | MEXC | USDC-USDT | $0.9993 0.0000143 Btc | $12,088,986.00 12,096,898.730 USDC | 0.7796% |
35 | OKX | SOL-USDC | $0.9999 0.0000144 Btc | $9,814,288.00 52,386.048 SOL | 0.0034% |
36 | Kraken | USDC-USDT | $1.001 0.0000144 Btc | $9,057,142.00 9,046,008.946 USDC | 0.5830% |
37 | Backpack Exchange | WIF-USDC | $0.9999 0.0000144 Btc | $8,699,073.00 2,362,370.000 WIF | 0.1522% |
38 | Hotcoin Global | USDC-USDT | $1.001 0.0000143 Btc | $8,626,943.00 8,621,996.000 USDC | 0.5556% |
39 | Coinbase Exchange | USDC-EUR | $1.00 0.0000144 Btc | $8,578,356.00 8,576,782.810 USDC | 0.5527% |
40 | Kraken | USDC-EUR | $1.00 0.0000144 Btc | $7,979,370.00 7,979,292.667 USDC | 0.5142% |
41 | OKX | USDT-USDC | $0.9999 0.0000144 Btc | $7,619,173.00 7,619,688.567 USDT | 0.4910% |
42 | Backpack Exchange | PYTH-USDC | $0.9999 0.0000144 Btc | $7,205,605.00 7,994,113.100 PYTH | 0.5152% |
43 | HTX | USDC-USDT | $1.001 0.0000144 Btc | $7,145,460.00 7,136,322.921 USDC | 0.4599% |
44 | DigiFinex | ETH-USDC | $0.9997 0.0000144 Btc | $6,533,808.00 1,871.159 ETH | 0.0001% |
45 | Gate.io | USDC-USDT | $1.001 0.0000144 Btc | $6,524,752.00 6,516,366.322 USDC | 0.4199% |
46 | XT.COM | BTC-USDC | $1.00 0.0000143 Btc | $6,287,236.00 89.267 BTC | 0.0000% |
47 | Bitget | BTC-USDC | $0.9997 0.0000144 Btc | $5,545,016.00 78.717 BTC | 0.0000% |
48 | BitMart | USDC-USDT | $1.001 0.0000144 Btc | $4,734,262.00 4,729,435.660 USDC | 0.3048% |
49 | KuCoin | USDC-USDT | $0.9996 0.0000144 Btc | $4,619,062.00 4,620,944.990 USDC | 0.2978% |
50 | WhiteBIT | BTC-USDC | $1.00 0.0000143 Btc | $4,503,138.00 64.410 BTC | 0.0000% |
51 | Coinbase Exchange | USDT-USDC | $0.9983 0.0000144 Btc | $4,485,694.00 4,492,383.110 USDT | 0.2895% |
52 | Phemex | USDC-USDT | $1.00 0.0000143 Btc | $3,843,903.00 3,842,148.630 USDC | 0.2476% |
53 | PointPay | USDC-USDT | $0.9996 0.0000144 Btc | $3,791,050.00 3,791,867.020 USDC | 0.2444% |
54 | Kraken | BTC-USDC | $0.9999 0.0000144 Btc | $3,639,876.00 52.453 BTC | 0.0000% |
55 | PointPay | BTC-USDC | $0.9997 0.0000144 Btc | $3,505,571.00 49.855 BTC | 0.0000% |
56 | Vertex Protocol (Spot) | WETH-USDC | $0.9999 0.0000144 Btc | $3,243,956.00 913.420 WETH | 0.0001% |
57 | Cryptology | BTC-USDC | $1.00 0.0000143 Btc | $3,117,188.00 44.617 BTC | 0.0000% |
58 | Bitget | ETH-USDC | $0.9997 0.0000144 Btc | $3,070,553.00 863.981 ETH | 0.0001% |
59 | Coinbase Exchange | USDC-GBP | $1.00 0.0000144 Btc | $2,991,508.00 2,990,937.080 USDC | 0.1927% |
60 | KuCoin | BTC-USDC | $0.9997 0.0000144 Btc | $2,638,848.00 38.078 BTC | 0.0000% |
61 | XT.COM | ETH-USDC | $1.00 0.0000143 Btc | $2,537,221.00 713.652 ETH | 0.0000% |
62 | MEXC | ETH-USDC | $1.001 0.0000145 Btc | $2,190,629.00 626.132 ETH | 0.0000% |
63 | KuCoin | USDT-USDC | $0.9997 0.0000144 Btc | $1,941,391.00 1,941,104.855 USDT | 0.1251% |
64 | Bitfinex | UDC-USDT | $1.001 0.0000144 Btc | $1,922,267.00 1,920,000.157 UDC | 0.1237% |
65 | Tapbit | USDC-USDT | $0.9985 0.0000144 Btc | $1,916,640.00 1,919,147.830 USDC | 0.1237% |
66 | Gemini | USDC-USD | $1.00 0.0000144 Btc | $1,680,936.00 1,680,835.460 USDC | 0.1083% |
67 | Backpack Exchange | USDT-USDC | $0.9999 0.0000144 Btc | $1,499,259.00 1,499,293.000 USDT | 0.0966% |
68 | Kraken | USDC-GBP | $0.9999 0.0000144 Btc | $1,472,658.00 1,472,749.417 USDC | 0.0949% |
69 | Maverick Protocol | 0X40D16FC0246AD3160CCC09B8D0D3A2CD28AE6C2F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9978 0.0000143 Btc | $1,471,997.00 1,480,596.921 0X40D16FC0246AD3160CCC09B8D0D3A2CD28AE6C2F | 0.0954% |
70 | Bitstamp | USDC-USD | $1.00 0.0000144 Btc | $1,419,160.00 1,418,975.351 USDC | 0.0914% |
71 | Dexalot | AVAX-USDC | $0.9986 0.0000143 Btc | $1,259,751.00 23,278.364 AVAX | 0.0015% |
72 | KuCoin | ETH-USDC | $0.9997 0.0000144 Btc | $1,255,533.00 359.491 ETH | 0.0000% |
73 | BYDFi | BTC-USDC | $1.001 0.0000143 Btc | $1,236,817.00 17.712 BTC | 0.0000% |
74 | Kraken | USDC-CAD | $1.001 0.0000144 Btc | $1,181,760.00 1,180,986.689 USDC | 0.0761% |
75 | Kraken | ETH-USDC | $0.9999 0.0000144 Btc | $1,061,913.00 303.871 ETH | 0.0000% |
76 | MEXC | BTC-USDC | $0.9998 0.0000143 Btc | $969,206.00 13.898 BTC | 0.0000% |
77 | DeGate | ETH-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9923 0.0000143 Btc | $929,774.00 263.909 ETH | 0.0000% |
78 | Dexalot | USDT-USDC | $0.9986 0.0000143 Btc | $823,461.00 824,647.738 USDT | 0.0531% |
79 | BYDFi | USDC-USDT | $0.9992 0.0000143 Btc | $810,958.00 811,572.730 USDC | 0.0523% |
80 | Toobit | USDC-USDT | $0.9996 0.0000144 Btc | $796,150.00 796,307.000 USDC | 0.0513% |
81 | PointPay | SOL-USDC | $0.9983 0.0000144 Btc | $776,030.00 4,152.053 SOL | 0.0003% |
82 | KuCoin | XRP-USDC | $0.9997 0.0000144 Btc | $767,295.00 1,228,886.946 XRP | 0.0792% |
83 | Vertex Protocol (Spot) | WBTC-USDC | $0.9999 0.0000144 Btc | $743,203.00 10.561 WBTC | 0.0000% |
84 | XT.COM | USDC-USDT | $1.00 0.0000143 Btc | $680,790.00 680,648.630 USDC | 0.0439% |
85 | PointPay | BNB-USDC | $0.9997 0.0000144 Btc | $565,353.00 930.709 BNB | 0.0001% |
86 | Vertex Protocol (Spot) | USDT-USDC | $0.9999 0.0000144 Btc | $361,877.00 361,760.000 USDT | 0.0233% |
87 | Binance US | USDC-USDT | $1.00 0.0000143 Btc | $349,659.00 349,604.672 USDC | 0.0225% |
88 | PointPay | AVAX-USDC | $0.9997 0.0000144 Btc | $309,427.00 5,728.729 AVAX | 0.0004% |
89 | MEXC | BNB-USDC | $0.9998 0.0000143 Btc | $302,318.00 495.310 BNB | 0.0000% |
90 | CEX.IO | USDC-EUR | $0.9998 0.0000143 Btc | $283,710.00 283,808.565 USDC | 0.0183% |
91 | PointPay | ETH-USDC | $0.9983 0.0000144 Btc | $283,060.00 79.840 ETH | 0.0000% |
92 | CoinEx | USDC-USDT | $0.998 0.0000143 Btc | $181,429.00 181,731.877 USDC | 0.0117% |
93 | VALR | BTC-USDC | $0.9983 0.0000144 Btc | $139,849.00 1.986 BTC | 0.0000% |
94 | Tapbit | BNB-USDC | $0.9987 0.0000144 Btc | $135,981.00 227.173 BNB | 0.0000% |
95 | HashKey Exchange | ETH-USDC | $0.9997 0.0000144 Btc | $127,711.00 35.835 ETH | 0.0000% |
96 | HashKey Exchange | BTC-USDC | $0.9997 0.0000144 Btc | $104,385.00 1.481 BTC | 0.0000% |
97 | VALR | USDT-USDC | $0.9983 0.0000144 Btc | $85,089.00 85,174.124 USDT | 0.0055% |
98 | BitMart | TRX-USDC | $0.9997 0.0000144 Btc | $77,245.00 643,790.000 TRX | 0.0415% |
99 | HashKey Exchange | USDT-USDC | $0.9997 0.0000144 Btc | $70,517.00 70,509.975 USDT | 0.0045% |
100 | Nominex | BTC-USDC | $1.00 0.0000142 Btc | $38,985.00 0.552 BTC | 0.0000% |
Contract Name:
TransparentUpgradeableProxy
Compiler Version
v0.6.12+commit.27d51765
Contract Source Code (Solidity)
/** *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
- No Contract Security Audit Submitted- Submit Audit Here
[{"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"}]
Contract Creation Code
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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---------------