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
$1.00 @ 0.000280 ETH (-0.04%)
Fully Diluted Market Cap
Total Supply:
343,364,992.417814 USDC.e
Holders:
692,059 addresses
Contract:
Decimals:
6
Official Site:
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OVERVIEW
This is a bridged USDC token deployed by Arbitrum Foundation.Market
Volume (24H) | : | $7,460,213,851.00 |
Market Capitalization | : | $32,464,493,392.00 |
Circulating Supply | : | 32,464,671,034.00 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 0.0000141 Btc | $1,090,824,011.00 1,090,320,218.000 USDC | 60.4844% |
2 | Bybit | BTC-USDC | $0.9994 0.0000141 Btc | $586,128,581.00 8,311.581 BTC | 0.0005% |
3 | Bybit | ETH-USDC | $0.9994 0.0000141 Btc | $305,750,091.00 86,246.594 ETH | 0.0048% |
4 | LBank | BTC-USDC | $1.00 0.0000141 Btc | $238,016,588.00 3,359.605 BTC | 0.0002% |
5 | Backpack Exchange | SOL-USDC | $1.00 0.0000141 Btc | $192,983,324.00 1,036,864.960 SOL | 0.0575% |
6 | Hotcoin Global | BTC-USDC | $1.00 0.0000141 Btc | $191,440,025.00 2,700.976 BTC | 0.0001% |
7 | Bybit | USDC-USDT | $1.00 0.0000141 Btc | $131,795,316.00 131,725,817.130 USDC | 7.3074% |
8 | Bitrue | BTC-USDC | $0.9998 0.0000141 Btc | $99,435,774.00 1,404.360 BTC | 0.0001% |
9 | DigiFinex | USDC-USDT | $1.00 0.0000141 Btc | $96,118,120.00 96,101,755.000 USDC | 5.3311% |
10 | Tapbit | BTC-USDC | $1.00 0.0000141 Btc | $93,821,701.00 1,329.284 BTC | 0.0001% |
11 | Tapbit | ETH-USDC | $1.00 0.0000141 Btc | $93,681,987.00 26,341.412 ETH | 0.0015% |
12 | OKX | BTC-USDC | $0.9993 0.0000141 Btc | $90,187,463.00 1,278.145 BTC | 0.0001% |
13 | Biconomy | BTC-USDC | $1.00 0.0000141 Btc | $86,393,151.00 1,225.149 BTC | 0.0001% |
14 | Biconomy | ETH-USDC | $1.00 0.0000141 Btc | $85,085,662.00 23,911.969 ETH | 0.0013% |
15 | OKX | ETH-USDC | $0.9994 0.0000141 Btc | $71,231,444.00 20,035.276 ETH | 0.0011% |
16 | LATOKEN | USDC-USDT | $0.9998 0.0000141 Btc | $68,084,301.00 68,098,800.312 USDC | 3.7777% |
17 | Bitrue | ETH-USDC | $0.9998 0.0000141 Btc | $66,224,601.00 18,525.490 ETH | 0.0010% |
18 | Hotcoin Global | ETH-USDC | $1.00 0.0000141 Btc | $54,208,576.00 15,141.093 ETH | 0.0008% |
19 | Bitunix | USDC-USDT | $0.9998 0.0000141 Btc | $49,353,684.00 49,362,209.307 USDC | 2.7383% |
20 | BingX | USDC-USDT | $1.00 0.0000141 Btc | $49,110,948.00 49,087,425.255 USDC | 2.7231% |
21 | Deepcoin | USDC-USDT | $0.9996 0.0000141 Btc | $43,525,113.00 43,953,782.917 USDC | 2.4383% |
22 | BingX | BTC-USDC | $0.9994 0.0000141 Btc | $39,050,346.00 553.726 BTC | 0.0000% |
23 | Binance | BTC-USDC | $0.9993 0.0000141 Btc | $36,734,623.00 520.596 BTC | 0.0000% |
24 | OKX | USDC-USDT | $1.00 0.0000141 Btc | $35,614,217.00 35,592,507.376 USDC | 1.9745% |
25 | LBank | USDC-USDT | $1.00 0.0000141 Btc | $28,833,759.00 28,822,486.210 USDC | 1.5989% |
26 | Bitget | USDC-USDT | $1.00 0.0000141 Btc | $23,910,409.00 23,898,338.538 USDC | 1.3257% |
27 | Kraken | USDC-EUR | $0.9998 0.0000141 Btc | $21,572,053.00 21,576,797.304 USDC | 1.1970% |
28 | BingX | ETH-USDC | $0.9994 0.0000141 Btc | $20,517,913.00 5,786.128 ETH | 0.0003% |
29 | Kraken | USDC-USD | $0.9999 0.0000141 Btc | $19,881,853.00 19,884,010.791 USDC | 1.1030% |
30 | DigiFinex | BTC-USDC | $0.9994 0.0000141 Btc | $19,772,283.00 279.263 BTC | 0.0000% |
31 | Binance | ETH-USDC | $0.9994 0.0000141 Btc | $15,113,534.00 4,246.819 ETH | 0.0002% |
32 | MEXC | USDC-USDT | $0.9997 0.0000141 Btc | $13,738,395.00 13,742,420.550 USDC | 0.7623% |
33 | Bybit | SOL-USDC | $0.9993 0.0000141 Btc | $13,453,128.00 72,191.271 SOL | 0.0040% |
34 | Kraken | USDC-USDT | $1.00 0.0000141 Btc | $13,298,357.00 13,298,865.757 USDC | 0.7377% |
35 | Hotcoin Global | USDC-USDT | $0.9999 0.0000141 Btc | $11,070,247.00 11,070,997.000 USDC | 0.6142% |
36 | OKX | SOL-USDC | $0.9994 0.0000141 Btc | $10,338,269.00 55,441.624 SOL | 0.0031% |
37 | Bitrue | USDC-USDT | $1.00 0.0000141 Btc | $10,227,988.00 10,228,104.390 USDC | 0.5674% |
38 | Coinbase Exchange | USDC-EUR | $0.9996 0.0000141 Btc | $9,210,946.00 9,214,263.600 USDC | 0.5112% |
39 | HTX | BTC-USDC | $0.9993 0.0000141 Btc | $8,687,191.00 123.419 BTC | 0.0000% |
40 | Kraken | BTC-USDC | $0.9993 0.0000141 Btc | $8,038,521.00 113.474 BTC | 0.0000% |
41 | DigiFinex | ETH-USDC | $0.9994 0.0000141 Btc | $7,690,311.00 2,151.234 ETH | 0.0001% |
42 | OKX | USDT-USDC | $0.9994 0.0000141 Btc | $7,369,801.00 7,375,008.388 USDT | 0.4091% |
43 | HTX | USDC-USDT | $1.00 0.0000141 Btc | $6,961,856.00 6,960,820.435 USDC | 0.3861% |
44 | Gate.io | USDC-USDT | $1.00 0.0000141 Btc | $6,293,366.00 6,289,978.159 USDC | 0.3489% |
45 | WhiteBIT | BTC-USDC | $0.9994 0.0000141 Btc | $6,281,854.00 88.760 BTC | 0.0000% |
46 | KuCoin | USDC-USDT | $0.9999 0.0000141 Btc | $6,220,883.00 6,221,787.711 USDC | 0.3451% |
47 | Coinbase Exchange | USDT-USDC | $0.9998 0.0000141 Btc | $6,094,331.00 6,094,489.850 USDT | 0.3381% |
48 | Bitget | BTC-USDC | $0.9994 0.0000141 Btc | $6,086,172.00 86.362 BTC | 0.0000% |
49 | XT.COM | BTC-USDC | $0.9994 0.0000141 Btc | $5,681,032.00 80.505 BTC | 0.0000% |
50 | Binance | SOL-USDC | $0.9998 0.0000141 Btc | $5,492,311.00 29,408.140 SOL | 0.0016% |
51 | Phemex | USDC-USDT | $0.9993 0.0000141 Btc | $5,366,432.00 5,370,082.260 USDC | 0.2979% |
52 | Pionex | USDC-USDT | $0.9996 0.0000141 Btc | $5,130,936.00 5,130,624.290 USDC | 0.2846% |
53 | BitMart | USDC-USDT | $0.9998 0.0000141 Btc | $4,818,290.00 4,819,060.820 USDC | 0.2673% |
54 | Cryptology | BTC-USDC | $1.00 0.0000141 Btc | $4,340,332.00 61.291 BTC | 0.0000% |
55 | MEXC | BTC-USDC | $1.00 0.0000141 Btc | $4,269,262.00 60.225 BTC | 0.0000% |
56 | Bitget | ETH-USDC | $0.9994 0.0000141 Btc | $3,525,678.00 991.883 ETH | 0.0001% |
57 | Coinbase Exchange | USDC-GBP | $0.9996 0.0000141 Btc | $3,290,826.00 3,292,193.040 USDC | 0.1826% |
58 | XT.COM | ETH-USDC | $0.9994 0.0000141 Btc | $3,095,326.00 869.840 ETH | 0.0000% |
59 | Bitfinex | UDC-USDT | $1.00 0.0000141 Btc | $3,089,137.00 3,088,549.657 UDC | 0.1713% |
60 | PointPay | BTC-USDC | $0.9999 0.0000141 Btc | $3,068,478.00 43.431 BTC | 0.0000% |
61 | Kraken | USDC-GBP | $0.9998 0.0000141 Btc | $3,034,365.00 3,034,847.849 USDC | 0.1684% |
62 | KuCoin | BTC-USDC | $0.9994 0.0000141 Btc | $2,882,567.00 40.699 BTC | 0.0000% |
63 | Vertex Protocol (Spot) | WETH-USDC | $1.00 0.0000141 Btc | $2,757,404.00 775.670 WETH | 0.0000% |
64 | Maverick Protocol | 0X40D16FC0246AD3160CCC09B8D0D3A2CD28AE6C2F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9992 0.0000141 Btc | $2,710,003.00 2,723,521.677 0X40D16FC0246AD3160CCC09B8D0D3A2CD28AE6C2F | 0.1511% |
65 | Tapbit | USDC-USDT | $0.9998 0.0000141 Btc | $2,654,686.00 2,654,375.695 USDC | 0.1472% |
66 | Gemini | USDC-USD | $0.9997 0.0000141 Btc | $2,345,464.00 2,346,187.879 USDC | 0.1302% |
67 | KuCoin | USDT-USDC | $0.9994 0.0000141 Btc | $2,169,565.00 2,170,523.506 USDT | 0.1204% |
68 | Bitstamp | USDC-USD | $0.9999 0.0000141 Btc | $1,944,702.00 1,944,854.267 USDC | 0.1079% |
69 | OKX | XRP-USDC | $0.9994 0.0000141 Btc | $1,943,518.00 3,122,161.579 XRP | 0.1732% |
70 | C-Patex | USDC-USDT | $1.00 0.0000141 Btc | $1,932,613.00 1,932,643.733 USDC | 0.1072% |
71 | Deribit Spot | BTC-USDC | $1.00 0.0000141 Btc | $1,703,696.00 24.109 BTC | 0.0000% |
72 | MEXC | ETH-USDC | $1.00 0.0000141 Btc | $1,692,209.00 472.551 ETH | 0.0000% |
73 | Kraken | ETH-USDC | $0.9993 0.0000141 Btc | $1,572,558.00 439.943 ETH | 0.0000% |
74 | KuCoin | ETH-USDC | $0.9993 0.0000141 Btc | $1,428,810.00 399.666 ETH | 0.0000% |
75 | Vertex Protocol (Spot) | WBTC-USDC | $1.00 0.0000141 Btc | $1,337,401.00 18.937 WBTC | 0.0000% |
76 | BYDFi | BTC-USDC | $1.00 0.0000141 Btc | $1,165,779.00 16.452 BTC | 0.0000% |
77 | Dexalot | USDT-USDC | $0.9999 0.0000141 Btc | $1,153,694.00 1,154,225.275 USDT | 0.0640% |
78 | Vertex Protocol (Spot) | USDT-USDC | $1.00 0.0000141 Btc | $1,130,383.00 1,130,260.000 USDT | 0.0627% |
79 | Backpack Exchange | USDT-USDC | $1.00 0.0000141 Btc | $1,129,410.00 1,129,549.000 USDT | 0.0627% |
80 | BYDFi | USDC-USDT | $1.00 0.0000141 Btc | $983,831.00 983,718.440 USDC | 0.0546% |
81 | PointPay | SOL-USDC | $0.9998 0.0000141 Btc | $892,257.00 4,787.528 SOL | 0.0003% |
82 | XT.COM | USDC-USDT | $1.00 0.0000141 Btc | $821,596.00 821,000.610 USDC | 0.0455% |
83 | Toobit | USDC-USDT | $1.00 0.0000141 Btc | $820,801.00 820,273.000 USDC | 0.0455% |
84 | Kraken | USDC-AUD | $1.001 0.0000141 Btc | $819,447.00 818,921.958 USDC | 0.0454% |
85 | WOO X | USDC-USDT | $1.00 0.0000141 Btc | $677,841.00 677,848.670 USDC | 0.0376% |
86 | KuCoin | XRP-USDC | $0.9994 0.0000141 Btc | $560,654.00 897,269.094 XRP | 0.0498% |
87 | Kraken | USDC-CHF | $0.9997 0.0000141 Btc | $527,616.00 527,763.731 USDC | 0.0293% |
88 | Deribit Spot | USDC-USDT | $1.00 0.0000141 Btc | $412,420.00 412,151.000 USDC | 0.0229% |
89 | PointPay | ETH-USDC | $0.9998 0.0000141 Btc | $335,659.00 94.293 ETH | 0.0000% |
90 | CEX.IO | USDC-EUR | $0.9989 0.0000141 Btc | $333,671.00 334,126.748 USDC | 0.0185% |
91 | PointPay | AVAX-USDC | $0.9999 0.0000141 Btc | $314,895.00 5,794.088 AVAX | 0.0003% |
92 | Binance US | USDC-USDT | $0.9996 0.0000141 Btc | $307,076.00 307,207.054 USDC | 0.0170% |
93 | HashKey Exchange | ETH-USDC | $1.00 0.0000141 Btc | $259,370.00 73.344 ETH | 0.0000% |
94 | PointPay | BNB-USDC | $0.9999 0.0000141 Btc | $231,738.00 396.306 BNB | 0.0000% |
95 | PointPay | XRP-USDC | $0.9999 0.0000141 Btc | $212,068.00 339,737.663 XRP | 0.0188% |
96 | CoinEx | USDC-USDT | $0.999 0.0000141 Btc | $210,625.00 210,802.498 USDC | 0.0117% |
97 | HashKey Exchange | BTC-USDC | $1.00 0.0000141 Btc | $150,012.00 2.117 BTC | 0.0000% |
98 | Tapbit | BNB-USDC | $0.9998 0.0000141 Btc | $115,743.00 198.058 BNB | 0.0000% |
99 | HashKey Exchange | USDT-USDC | $1.00 0.0000141 Btc | $97,424.00 97,343.979 USDT | 0.0054% |
100 | Nominex | BTC-USDC | $1.001 0.0000142 Btc | $39,017.00 0.551 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---------------