Overview
Max Total Supply
25,130,944,784.442128 USDC
Holders
2,386,110 ( 0.078%)
Market
Price
$1.00 @ 0.000401 ETH (+0.07%)
Onchain Market Cap
$25,130,944,784.44
Circulating Supply Market Cap
$34,660,138,319.00
Other Info
Token Contract (WITH 6 Decimals)
Balance
0.56526 USDCValue
$0.57 ( ~0.000228351457098926 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Bybit | BTC-USDC | $1.00 0.0004004 Eth | $824,145,608.00 12,042.595 BTC | 0.0026% |
2 | Aerodrome SlipStream | 0X4200000000000000000000000000000000000006-0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913 | $0.9987 0.0003998 Eth | $359,053,487.00 143,405.156 0X4200000000000000000000000000000000000006 | 0.0305% |
3 | DigiFinex | BTC-USDC | $0.9997 0.0004003 Eth | $277,500,481.00 4,027.701 BTC | 0.0009% |
4 | Bybit | ETH-USDC | $1.00 0.0004004 Eth | $228,434,042.00 91,114.420 ETH | 0.0194% |
5 | Orca | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $195,967,829.00 1,116,010.476 SO11111111111111111111111111111111111111112 | 0.2373% |
6 | Binance | BTC-USDC | $1.00 0.0004004 Eth | $171,852,912.00 2,509.079 BTC | 0.0005% |
7 | Raydium (CLMM) | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $0.9999 0.0004002 Eth | $137,977,540.00 785,216.433 SO11111111111111111111111111111111111111112 | 0.1669% |
8 | DigiFinex | ETH-USDC | $0.9997 0.0004003 Eth | $128,571,308.00 51,473.589 ETH | 0.0109% |
9 | WEEX | BTC-USDC | $0.9999 0.0004000 Eth | $100,144,204.00 1,453.227 BTC | 0.0003% |
10 | Aerodrome SlipStream | 0XCBB7C0000AB88B473B1F5AFD9EF808440EED33BF-0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913 | $1.001 0.0004006 Eth | $98,465,163.00 1,438.116 0XCBB7C0000AB88B473B1F5AFD9EF808440EED33BF | 0.0003% |
11 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.9992 0.0003999 Eth | $90,580,754.00 91,046,793.882 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 19.3568% |
12 | Hotcoin | BTC-USDC | $0.9989 0.0003999 Eth | $86,291,770.00 1,254.161 BTC | 0.0003% |
13 | Azbit | BTC-USDC | $0.9999 0.0003992 Eth | $76,308,933.00 1,118.940 BTC | 0.0002% |
14 | Tapbit | ETH-USDC | $1.00 0.0003991 Eth | $73,916,053.00 29,444.621 ETH | 0.0063% |
15 | Orca | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $66,694,045.00 379,610.908 SO11111111111111111111111111111111111111112 | 0.0807% |
16 | Camelot V3 | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $0.9991 0.0003999 Eth | $54,075,229.00 54,318,083.788 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 11.5482% |
17 | Binance | SOL-USDC | $1.00 0.0003981 Eth | $50,954,218.00 289,902.302 SOL | 0.0616% |
18 | OKX | BTC-USDC | $1.00 0.0004004 Eth | $49,457,198.00 721.333 BTC | 0.0002% |
19 | OKX | ETH-USDC | $0.9999 0.0004002 Eth | $39,348,513.00 15,680.327 ETH | 0.0033% |
20 | Tapbit | BTC-USDC | $1.00 0.0004004 Eth | $36,006,629.00 526.866 BTC | 0.0001% |
21 | Deepcoin | USDC-USDT | $1.00 0.0004000 Eth | $32,598,036.00 32,249,170.300 USDC | 6.8563% |
22 | Dexalot | ETH-USDC | $1.00 0.0003984 Eth | $31,538,453.00 12,582.085 ETH | 0.0027% |
23 | Velodrome SlipStream | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X4200000000000000000000000000000000000006 | $1.003 0.0004016 Eth | $30,926,844.00 30,949,491.979 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 6.5800% |
24 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $0.9984 0.0003996 Eth | $26,482,471.00 26,326,530.044 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 5.5971% |
25 | Orca | 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $26,256,804.00 7,452,891.671 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4 | 1.5845% |
26 | Bitunix | USDC-USDT | $1.00 0.0004002 Eth | $25,199,701.00 25,199,918.739 USDC | 5.3576% |
27 | Hotcoin | ETH-USDC | $0.9999 0.0004002 Eth | $22,654,824.00 9,074.209 ETH | 0.0019% |
28 | Bybit | SOL-USDC | $1.00 0.0004004 Eth | $20,945,519.00 119,222.498 SOL | 0.0253% |
29 | LBank | ETH-USDC | $1.00 0.0004002 Eth | $19,938,043.00 7,979.890 ETH | 0.0017% |
30 | WhiteBIT | ETH-USDC | $1.00 0.0003995 Eth | $18,760,649.00 7,498.545 ETH | 0.0016% |
31 | Meteora | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $17,803,131.00 101,317.935 SO11111111111111111111111111111111111111112 | 0.0215% |
32 | Raydium (CLMM) | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $0.9999 0.0004002 Eth | $17,503,815.00 99,695.495 SO11111111111111111111111111111111111111112 | 0.0212% |
33 | Biconomy.com | BTC-USDC | $1.00 0.0004002 Eth | $16,716,337.00 244.719 BTC | 0.0001% |
34 | Dexalot | WBTC-USDC | $1.00 0.0003980 Eth | $12,836,877.00 188.685 WBTC | 0.0000% |
35 | BingX | BTC-USDC | $1.00 0.0004004 Eth | $12,750,548.00 186.283 BTC | 0.0000% |
36 | LFJ V2.1 (Avalanche) | 0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E | $1.00 0.0004002 Eth | $12,497,686.00 485,611.942 0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | 0.1032% |
37 | Curve (Ethereum) | 0X4C9EDD5852CD905F086C759E8383E09BFF1E68B3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.00 0.0003990 Eth | $12,441,877.00 12,436,256.829 0X4C9EDD5852CD905F086C759E8383E09BFF1E68B3 | 2.6440% |
38 | Azbit | SOL-USDC | $1.00 0.0004002 Eth | $11,967,448.00 68,043.826 SOL | 0.0145% |
39 | LFJ V2.2 (Avalanche) | 0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E | $0.9999 0.0004002 Eth | $10,030,024.00 10,043,692.150 0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7 | 2.1353% |
40 | Curve (Ethereum) | 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.00 0.0003989 Eth | $8,863,604.00 8,866,456.098 0XF939E0A03FB07F59A73314E73794BE0E57AC1B4E | 1.8850% |
41 | Camelot V3 | 0X912CE59144191C1204E64559FE8253A0E49E6548-0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | $0.9991 0.0003999 Eth | $7,559,102.00 14,691,317.135 0X912CE59144191C1204E64559FE8253A0E49E6548 | 3.1234% |
42 | Orca | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $7,294,657.00 41,467.575 SO11111111111111111111111111111111111111112 | 0.0088% |
43 | Orca | 2B1KV6DKPANXD5IXFNXCPJXMKWQJJAYMCZFHSFU24GXO-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $7,270,784.00 7,269,726.659 2B1KV6DKPANXD5IXFNXCPJXMKWQJJAYMCZFHSFU24GXO | 1.5456% |
44 | Meteora | SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V | $1.00 0.0004004 Eth | $6,947,219.00 39,604.093 SO11111111111111111111111111111111111111112 | 0.0084% |
45 | Dex-Trade | BTC-USDC | $1.00 0.0004002 Eth | $5,858,221.00 85.038 BTC | 0.0000% |
46 | Azbit | ETH-USDC | $0.9997 0.0004003 Eth | $5,764,321.00 2,302.510 ETH | 0.0005% |
47 | Binance | ARB-USDC | $1.00 0.0003995 Eth | $5,729,714.00 11,121,340.000 ARB | 2.3644% |
48 | OKX | SOL-USDC | $0.9999 0.0004002 Eth | $5,663,408.00 32,315.002 SOL | 0.0069% |
49 | WhiteBIT | BTC-USDC | $0.9997 0.0004003 Eth | $5,583,277.00 81.092 BTC | 0.0000% |
50 | Binance | DOGE-USDC | $0.9987 0.0004000 Eth | $5,246,802.00 35,840,220.000 DOGE | 7.6197% |
51 | HTX | ETH-USDC | $1.00 0.0004002 Eth | $5,027,408.00 2,007.899 ETH | 0.0004% |
52 | HTX | BTC-USDC | $1.00 0.0004002 Eth | $5,003,122.00 73.330 BTC | 0.0000% |
53 | Binance | ADA-USDC | $1.00 0.0004002 Eth | $4,550,537.00 13,518,907.700 ADA | 2.8742% |
54 | Binance | RUNE-USDC | $1.00 0.0003989 Eth | $4,290,199.00 776,390.500 RUNE | 0.1651% |
55 | Deribit Spot | SOL-USDC | $0.9999 0.0004000 Eth | $4,278,679.00 24,303.300 SOL | 0.0052% |
56 | Slex | ETH-USDC | $1.00 0.0004004 Eth | $4,133,554.00 1,648.411 ETH | 0.0004% |
57 | BingX | ETH-USDC | $1.00 0.0004004 Eth | $3,945,282.00 1,573.365 ETH | 0.0003% |
58 | Bitget | BTC-USDC | $1.00 0.0004004 Eth | $3,838,478.00 56.285 BTC | 0.0000% |
59 | PointPay | ETH-USDC | $1.00 0.0004000 Eth | $3,566,502.00 1,422.152 ETH | 0.0003% |
60 | Bitget | ETH-USDC | $1.00 0.0004004 Eth | $3,559,259.00 1,421.173 ETH | 0.0003% |
61 | OKX | USDT-USDC | $0.9999 0.0004002 Eth | $3,368,809.00 3,372,919.134 USDT | 0.7171% |
62 | Dexalot | BTC-USDC | $1.00 0.0003980 Eth | $3,188,216.00 46.685 BTC | 0.0000% |
63 | Bybit | DOGE-USDC | $1.00 0.0004004 Eth | $3,100,101.00 21,224,427.600 DOGE | 4.5124% |
64 | Slex | BTC-USDC | $1.00 0.0004002 Eth | $3,057,683.00 44.656 BTC | 0.0000% |
65 | OKX | DOGE-USDC | $0.9999 0.0004002 Eth | $2,681,629.00 18,321,872.810 DOGE | 3.8953% |
66 | Coinbase Exchange | EURC-USDC | $0.9999 0.0004002 Eth | $2,300,834.00 2,128,501.000 EURC | 0.4525% |
67 | Deribit Spot | ETH-USDC | $1.00 0.0004003 Eth | $2,197,721.00 875.141 ETH | 0.0002% |
68 | PointPay | SOL-USDC | $0.9999 0.0003984 Eth | $2,081,436.00 11,849.148 SOL | 0.0025% |
69 | Binance | WIF-USDC | $1.00 0.0003988 Eth | $1,961,210.00 819,450.050 WIF | 0.1742% |
70 | WhiteBIT | XRP-USDC | $1.00 0.0003990 Eth | $1,904,391.00 3,699,989.200 XRP | 0.7866% |
71 | Bybit | XRP-USDC | $1.00 0.0004004 Eth | $1,804,787.00 3,494,840.710 XRP | 0.7430% |
72 | XT.COM | BTC-USDC | $0.9999 0.0004002 Eth | $1,717,575.00 25.088 BTC | 0.0000% |
73 | Dexalot | ARB-USDC | $1.00 0.0003984 Eth | $1,712,129.00 3,315,177.573 ARB | 0.7048% |
74 | VALR | USDT-USDC | $1.00 0.0004002 Eth | $1,662,852.00 1,664,127.627 USDT | 0.3538% |
75 | Binance | SAGA-USDC | $1.00 0.0004004 Eth | $1,569,113.00 819,589.200 SAGA | 0.1742% |
76 | BYDFi | ETH-USDC | $0.9999 0.0003988 Eth | $1,500,848.00 598.737 ETH | 0.0001% |
77 | Bybit | SUI-USDC | $1.00 0.0004004 Eth | $1,325,154.00 779,969.690 SUI | 0.1658% |
78 | Binance | APT-USDC | $1.00 0.0003988 Eth | $1,281,198.00 142,346.780 APT | 0.0303% |
79 | Binance | FET-USDC | $1.00 0.0004004 Eth | $1,129,999.00 908,917.600 FET | 0.1932% |
80 | BingX | DOGE-USDC | $1.00 0.0004004 Eth | $1,030,001.00 7,050,962.856 DOGE | 1.4991% |
81 | OKX | XRP-USDC | $0.9999 0.0004002 Eth | $1,005,662.00 1,948,917.386 XRP | 0.4143% |
82 | Solidly V3 (Optimism) | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X7F5C764CBC14F9669B88837CA1490CCA17C31607 | $0.9999 0.0004003 Eth | $941,961.00 942,095.380 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 0.2003% |
83 | WhiteBIT | ADA-USDC | $0.9997 0.0004003 Eth | $891,998.00 2,655,461.900 ADA | 0.5646% |
84 | Binance | AAVE-USDC | $1.00 0.0003989 Eth | $866,687.00 5,764.670 AAVE | 0.0012% |
85 | Binance | DOT-USDC | $1.00 0.0003988 Eth | $784,949.00 190,635.080 DOT | 0.0405% |
86 | Tokpie | USDT-USDC | $1.00 0.0004002 Eth | $767,854.00 767,696.920 USDT | 0.1632% |
87 | Binance | BCH-USDC | $1.00 0.0004004 Eth | $627,910.00 1,770.257 BCH | 0.0004% |
88 | WEEX | XRP-USDC | $0.9994 0.0004000 Eth | $547,727.00 1,061,997.000 XRP | 0.2258% |
89 | Bybit | AVAX-USDC | $1.00 0.0004004 Eth | $524,176.00 20,348.762 AVAX | 0.0043% |
90 | Bybit | OP-USDC | $1.00 0.0004004 Eth | $445,791.00 282,078.460 OP | 0.0600% |
91 | DeGate | 0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9967 0.0003977 Eth | $442,977.00 6,180,839.500 0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71 | 1.3141% |
92 | OKX | OP-USDC | $0.9999 0.0004002 Eth | $319,818.00 202,049.494 OP | 0.0430% |
93 | Solidly V3 (Optimism) | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X94B008AA00579C1307B0EF2C499AD98A8CE58E58 | $0.9999 0.0004003 Eth | $268,776.00 268,771.437 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 0.0571% |
94 | DeGate | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9967 0.0003977 Eth | $265,826.00 35,543.102 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0076% |
95 | Dexalot | EURC-USDC | $1.00 0.0003980 Eth | $243,457.00 225,267.313 EURC | 0.0479% |
96 | DeGate | 0X808507121B80C02388FAD14726482E061B8DA827-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.998 0.0003981 Eth | $230,024.00 51,298.605 0X808507121B80C02388FAD14726482E061B8DA827 | 0.0109% |
97 | DeGate | 0XB50721BCF8D664C30412CFBC6CF7A15145234AD1-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9967 0.0003977 Eth | $191,415.00 372,416.430 0XB50721BCF8D664C30412CFBC6CF7A15145234AD1 | 0.0792% |
98 | DeGate | 0X467719AD09025FCC6CF6F8311755809D45A5E5F3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9967 0.0003977 Eth | $180,057.00 252,764.400 0X467719AD09025FCC6CF6F8311755809D45A5E5F3 | 0.0537% |
99 | DeGate | 0X92D6C1E31E14520E676A687F0A93788B716BEFF5-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9967 0.0003977 Eth | $129,439.00 129,470.597 0X92D6C1E31E14520E676A687F0A93788B716BEFF5 | 0.0275% |
100 | DeGate | 0X8457CA5040AD67FDEBBCC8EDCE889A335BC0FBFB-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9967 0.0003977 Eth | $86,031.00 914,552.600 0X8457CA5040AD67FDEBBCC8EDCE889A335BC0FBFB | 0.1944% |
Contract Name:
FiatTokenProxy
Compiler Version
v0.4.24+commit.e67f0147
Optimization Enabled:
No with 200 runs
Other Settings:
default evmVersion, Audited
Contract Source Code (Solidity)Audit Report
/** *Submitted for verification at Etherscan.io on 2018-08-03 */ pragma solidity ^0.4.24; // File: zos-lib/contracts/upgradeability/Proxy.sol /** * @title Proxy * @dev 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. */ contract Proxy { /** * @dev Fallback function. * Implemented entirely in `_fallback`. */ function () payable external { _fallback(); } /** * @return The Address of the implementation. */ function _implementation() internal 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 { } /** * @dev fallback implementation. * Extracted to enable manual triggering. */ function _fallback() internal { _willFallback(); _delegate(_implementation()); } } // File: openzeppelin-solidity/contracts/AddressUtils.sol /** * Utility library of inline functions on addresses */ library AddressUtils { /** * Returns whether the target address is a contract * @dev This function will return false if invoked during the constructor of a contract, * as the code is not actually created until after the constructor finishes. * @param addr address to check * @return whether the target address is a contract */ function isContract(address addr) internal view returns (bool) { uint256 size; // XXX Currently there is no better way to check if there is a contract in an address // than to check the size of the code at that address. // See https://ethereum.stackexchange.com/a/14016/36603 // for more details about how this works. // TODO Check this again before the Serenity release, because all addresses will be // contracts then. // solium-disable-next-line security/no-inline-assembly assembly { size := extcodesize(addr) } return size > 0; } } // File: zos-lib/contracts/upgradeability/UpgradeabilityProxy.sol /** * @title UpgradeabilityProxy * @dev 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. */ 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 _implementation Address of the initial implementation. */ constructor(address _implementation) public { assert(IMPLEMENTATION_SLOT == keccak256("org.zeppelinos.proxy.implementation")); _setImplementation(_implementation); } /** * @dev Returns the current implementation. * @return Address of the current implementation */ function _implementation() internal 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(AddressUtils.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address"); bytes32 slot = IMPLEMENTATION_SLOT; assembly { sstore(slot, newImplementation) } } } // File: zos-lib/contracts/upgradeability/AdminUpgradeabilityProxy.sol /** * @title AdminUpgradeabilityProxy * @dev This contract combines an upgradeability proxy with an authorization * mechanism for administrative tasks. * All external functions in this contract must be guarded by the * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity * feature proposal that would enable this to be done automatically. */ 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(); } } /** * Contract constructor. * It sets the `msg.sender` as the proxy administrator. * @param _implementation address of the initial implementation. */ constructor(address _implementation) UpgradeabilityProxy(_implementation) public { assert(ADMIN_SLOT == keccak256("org.zeppelinos.proxy.admin")); _setAdmin(msg.sender); } /** * @return The address of the proxy admin. */ function admin() external view ifAdmin returns (address) { return _admin(); } /** * @return The address of the implementation. */ function implementation() external view ifAdmin 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 data) payable external ifAdmin { _upgradeTo(newImplementation); require(address(this).call.value(msg.value)(data)); } /** * @return 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 { require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin"); super._willFallback(); } } // File: contracts/FiatTokenProxy.sol /** * Copyright CENTRE SECZ 2018 * * 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 all * 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 ^0.4.24; /** * @title FiatTokenProxy * @dev This contract proxies FiatToken calls and enables FiatToken upgrades */ contract FiatTokenProxy is AdminUpgradeabilityProxy { constructor(address _implementation) public AdminUpgradeabilityProxy(_implementation) { } }
Contract Security Audit
- Callisto Network - Apr 7th, 2023 - Security Audit Report
[{"constant":false,"inputs":[{"name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newImplementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"admin","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_implementation","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousAdmin","type":"address"},{"indexed":false,"name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}]
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)
0000000000000000000000000882477e7895bdc5cea7cb1552ed914ab157fe56
-----Decoded View---------------
Arg [0] : _implementation (address): 0x0882477e7895bdC5cea7cB1552ed914aB157Fe56
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000000882477e7895bdc5cea7cb1552ed914ab157fe56
Swarm Source
bzzr://a4a547cfc7202c5acaaae74d428e988bc62ad5024eb0165532d3a8f91db4ed24
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