ETH Price: $3,234.58 (-3.00%)

Token

USDC (USDC)
 

Overview

Max Total Supply

30,592,091,696.08925 USDC

Holders

2,503,628 (0.00%)

Market

Price

$1.00 @ 0.000309 ETH (+0.01%)

Onchain Market Cap

$30,592,091,696.09

Circulating Supply Market Cap

$42,987,124,623.00

Other Info

Token Contract (WITH 6 Decimals)

Filtered by Token Holder
dashers.eth
Balance
0.004857 USDC

Value
$0.00 ( ~0 Eth) [0.0000%]
0x87772ff7c65b5c93be52e3504670c6407271f829
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OVERVIEW

USDC is a US dollar-backed stablecoin issued by Circle. USDC is designed to provide a faster, safer, and more efficient way to send, spend, and exchange money around the world.

Market

Volume (24H):$4,517,231,212.00
Market Capitalization:$42,987,124,623.00
Circulating Supply:42,987,464,735.00 USDC
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Binance
BTC-USDC$1.00
0.0003096 Eth
$275,834,195.00
2,886.059 BTC
0.0002%
2
WEEX
BTC-USDC$1.00
0.0003058 Eth
$251,181,314.00
2,659.190 BTC
0.0002%
3
Orca
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$0.9996
0.0003085 Eth
$247,619,105.00
1,363,641.612 SO11111111111111111111111111111111111111112
0.1024%
4
Bybit
BTC-USDC$1.00
0.0003095 Eth
$158,717,981.00
1,660.083 BTC
0.0001%
5
Binance
ETH-USDC$1.00
0.0003059 Eth
$154,520,893.00
46,836.423 ETH
0.0035%
6
Bybit
ETH-USDC$1.00
0.0003095 Eth
$149,843,020.00
45,237.076 ETH
0.0034%
7
Raydium (CLMM)
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0003095 Eth
$116,490,929.00
640,664.507 SO11111111111111111111111111111111111111112
0.0481%
8
Curve (Ethereum)
0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9998
0.0003091 Eth
$91,998,832.00
92,311,652.699 0X6B175474E89094C44DA98B954EEDEAC495271D0F
6.9289%
9
OKX
BTC-USDC$1.00
0.0003096 Eth
$91,822,784.00
961.265 BTC
0.0001%
10
Coinbase Exchange
USDT-USDC$0.9996
0.0003085 Eth
$83,037,712.00
83,138,186.770 USDT
6.2403%
11
Binance
XRP-USDC$1.00
0.0003096 Eth
$62,598,541.00
28,223,870.000 XRP
2.1185%
12
OKX
ETH-USDC$1.00
0.0003096 Eth
$51,209,507.00
15,507.142 ETH
0.0012%
13
Uniswap V3 (Ethereum)
0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.999
0.0003092 Eth
$51,134,238.00
538.017 0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599
0.0000%
14
Curve (Ethereum)
0X73A15FED60BF67631DC6CD7BC5B6E8DA8190ACF5-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0003084 Eth
$45,517,562.00
45,507,353.001 0X73A15FED60BF67631DC6CD7BC5B6E8DA8190ACF5
3.4158%
15
Orca
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$0.9996
0.0003085 Eth
$38,720,401.00
213,272.887 SO11111111111111111111111111111111111111112
0.0160%
16
Kraken
USDC-USD$1.00
0.0003095 Eth
$30,149,413.00
30,149,412.720 USDC
2.2630%
17
WhiteBIT
ETH-USDC$0.9997
0.0003082 Eth
$27,393,632.00
8,464.369 ETH
0.0006%
18
Orca
27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$0.9996
0.0003085 Eth
$26,740,300.00
6,473,745.642 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4
0.4859%
19
Biconomy.com
ETH-USDC$0.9985
0.0003061 Eth
$25,274,798.00
7,628.639 ETH
0.0006%
20
WEEX
DOGE-USDC$1.00
0.0003096 Eth
$25,117,443.00
82,503,932.312 DOGE
6.1927%
21
WEEX
XRP-USDC$1.00
0.0003058 Eth
$25,032,133.00
11,568,339.853 XRP
0.8683%
22
LBank
ETH-USDC$0.998
0.0003086 Eth
$24,215,337.00
7,509.510 ETH
0.0006%
23
WhiteBIT
BTC-USDC$1.00
0.0003096 Eth
$23,999,004.00
255.387 BTC
0.0000%
24
Meteora
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0003084 Eth
$22,785,303.00
125,565.747 SO11111111111111111111111111111111111111112
0.0094%
25
Meteora
2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0003084 Eth
$21,349,925.00
810,639,686.429 2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV
60.8463%
26
Biconomy.com
BTC-USDC$1.00
0.0003059 Eth
$20,211,661.00
210.893 BTC
0.0000%
27
Bybit
SOL-USDC$1.00
0.0003095 Eth
$19,482,138.00
107,242.226 SOL
0.0080%
28
DigiFinex
ETH-USDC$1.00
0.0003097 Eth
$18,528,874.00
5,726.316 ETH
0.0004%
29
Uniswap V3 (Avalanche)
0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$0.9994
0.0003081 Eth
$15,928,535.00
431,858.572 0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7
0.0324%
30
Camelot V3
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8$1.002
0.0003089 Eth
$15,898,818.00
15,869,209.932 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
1.1911%
31
Curve (Ethereum)
0X4C9EDD5852CD905F086C759E8383E09BFF1E68B3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9998
0.0003057 Eth
$14,915,117.00
14,924,613.972 0X4C9EDD5852CD905F086C759E8383E09BFF1E68B3
1.1202%
32
LFJ V2.2 (Avalanche)
0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$1.00
0.0003095 Eth
$14,840,878.00
14,852,898.063 0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7
1.1149%
33
Meteora
27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$0.9997
0.0003082 Eth
$14,781,735.00
3,580,126.927 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4
0.2687%
34
DigiFinex
BTC-USDC$1.00
0.0003097 Eth
$14,459,953.00
153.966 BTC
0.0000%
35
Binance
BNB-USDC$1.00
0.0003096 Eth
$13,565,068.00
20,811.075 BNB
0.0016%
36
Hotcoin
ETH-USDC$0.9996
0.0003085 Eth
$11,967,386.00
3,698.733 ETH
0.0003%
37
Deribit Spot
ETH-USDC$1.00
0.0003095 Eth
$9,483,730.00
2,856.272 ETH
0.0002%
38
Slex
ETH-USDC$1.00
0.0003095 Eth
$7,575,587.00
2,295.541 ETH
0.0002%
39
OKX
XRP-USDC$1.00
0.0003096 Eth
$7,479,812.00
3,380,073.763 XRP
0.2537%
40
KuCoin
BTC-USDC$1.00
0.0003096 Eth
$6,853,754.00
73.051 BTC
0.0000%
41
Cube
BTC-USDC$1.00
0.0003096 Eth
$5,955,629.00
62.165 BTC
0.0000%
42
KuCoin
ETH-USDC$1.00
0.0003096 Eth
$5,818,976.00
1,801.638 ETH
0.0001%
43
Dex-Trade
BTC-USDC$1.00
0.0003058 Eth
$5,781,268.00
61.135 BTC
0.0000%
44
HTX
BTC-USDC$1.00
0.0003096 Eth
$5,673,961.00
59.162 BTC
0.0000%
45
HTX
ETH-USDC$1.00
0.0003096 Eth
$5,429,925.00
1,635.250 ETH
0.0001%
46
Coinbase Exchange
EURC-USDC$1.00
0.0003089 Eth
$5,419,242.00
5,194,565.000 EURC
0.3899%
47
OKX
SOL-USDC$1.00
0.0003096 Eth
$5,321,969.00
29,265.187 SOL
0.0022%
48
WhiteBIT
XRP-USDC$0.9998
0.0003095 Eth
$5,032,509.00
2,348,396.900 XRP
0.1763%
49
Bitget
BTC-USDC$1.00
0.0003096 Eth
$4,887,933.00
50.989 BTC
0.0000%
50
OKX
USDT-USDC$1.00
0.0003096 Eth
$4,639,761.00
4,642,738.427 USDT
0.3485%
51
Bitget
ETH-USDC$1.00
0.0003096 Eth
$4,425,642.00
1,336.191 ETH
0.0001%
52
Bybit
SUI-USDC$1.00
0.0003095 Eth
$3,998,593.00
913,349.150 SUI
0.0686%
53
BingX
DOGE-USDC$1.00
0.0003095 Eth
$3,799,818.00
12,106,569.000 DOGE
0.9087%
54
Binance
LINK-USDC$0.999
0.0003080 Eth
$3,744,174.00
169,817.430 LINK
0.0127%
55
BingX
ETH-USDC$1.00
0.0003095 Eth
$3,665,862.00
1,108.743 ETH
0.0001%
56
Binance
ENA-USDC$1.00
0.0003089 Eth
$3,656,244.00
3,507,172.840 ENA
0.2632%
57
BYDFi
BTC-USDC$0.9997
0.0003082 Eth
$3,610,344.00
38.454 BTC
0.0000%
58
BYDFi
ETH-USDC$1.00
0.0003095 Eth
$3,285,239.00
1,016.322 ETH
0.0001%
59
Bybit
DOGE-USDC$1.00
0.0003095 Eth
$3,270,237.00
10,414,919.300 DOGE
0.7817%
60
KuCoin
XRP-USDC$1.00
0.0003096 Eth
$3,030,610.00
1,419,029.712 XRP
0.1065%
61
Tapbit
XRP-USDC$1.001
0.0003094 Eth
$3,009,854.00
1,350,102.000 XRP
0.1013%
62
WEEX
SOL-USDC$1.00
0.0003058 Eth
$2,897,832.00
15,952.850 SOL
0.0012%
63
XT.COM
BTC-USDC$1.00
0.0003096 Eth
$2,756,732.00
28.846 BTC
0.0000%
64
PointPay
ETH-USDC$0.9997
0.0003082 Eth
$2,617,123.00
794.150 ETH
0.0001%
65
Binance
WIF-USDC$0.999
0.0003080 Eth
$2,514,885.00
1,311,177.710 WIF
0.0984%
66
KuCoin
USDT-USDC$1.00
0.0003096 Eth
$2,512,488.00
2,514,648.190 USDT
0.1887%
67
Binance
DOT-USDC$1.00
0.0003096 Eth
$2,442,004.00
352,381.270 DOT
0.0264%
68
Bybit
ADA-USDC$1.00
0.0003095 Eth
$2,441,910.00
2,763,400.380 ADA
0.2074%
69
Binance
UNI-USDC$0.9985
0.0003061 Eth
$2,380,290.00
172,282.440 UNI
0.0129%
70
WhiteBIT
ADA-USDC$0.9997
0.0003082 Eth
$2,230,357.00
2,576,172.500 ADA
0.1934%
71
tanX
BTC-USDC$1.00
0.0003095 Eth
$2,217,719.00
23.177 BTC
0.0000%
72
Binance
PNUT-USDC$0.998
0.0003086 Eth
$2,158,268.00
3,011,156.800 PNUT
0.2260%
73
OKX
DOGE-USDC$1.00
0.0003096 Eth
$2,147,226.00
6,835,457.320 DOGE
0.5131%
74
Binance
RUNE-USDC$0.9985
0.0003061 Eth
$2,108,706.00
427,173.200 RUNE
0.0321%
75
WEEX
BNB-USDC$0.9997
0.0003082 Eth
$2,016,002.00
3,113.654 BNB
0.0002%
76
Binance
OP-USDC$1.00
0.0003077 Eth
$2,001,866.00
1,135,882.590 OP
0.0853%
77
LBank
FIL-USDC$1.00
0.0003089 Eth
$1,880,102.00
395,004.783 FIL
0.0296%
78
Binance
SEI-USDC$0.998
0.0003086 Eth
$1,804,569.00
4,288,509.500 SEI
0.3219%
79
Bybit
LINK-USDC$1.00
0.0003095 Eth
$1,254,638.00
56,838.531 LINK
0.0043%
80
DeGate
0XEC53BF9167F50CDEB3AE105F56099AAAB9061F83-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9935
0.0003072 Eth
$1,199,077.00
327,715.444 0XEC53BF9167F50CDEB3AE105F56099AAAB9061F83
0.0246%
81
Vertex (Spot)
WBTC-USDC$0.998
0.0003086 Eth
$1,079,561.00
11.361 WBTC
0.0000%
82
OKX
ADA-USDC$1.00
0.0003096 Eth
$1,066,866.00
1,198,691.846 ADA
0.0900%
83
Dex-Trade
SOL-USDC$1.00
0.0003096 Eth
$1,027,454.00
5,777.366 SOL
0.0004%
84
BingX
UNI-USDC$1.00
0.0003095 Eth
$973,822.00
70,365.408 UNI
0.0053%
85
Binance
TAO-USDC$1.00
0.0003067 Eth
$899,012.00
1,978.108 TAO
0.0001%
86
WEEX
AVAX-USDC$1.00
0.0003058 Eth
$802,481.00
22,146.072 AVAX
0.0017%
87
VALR
USDT-USDC$0.9997
0.0003082 Eth
$732,417.00
732,998.349 USDT
0.0550%
88
PointPay
SOL-USDC$0.9997
0.0003082 Eth
$673,127.00
3,711.243 SOL
0.0003%
89
Tokpie
DAI-USDC$1.00
0.0003058 Eth
$663,631.00
663,409.740 DAI
0.0498%
90
DeGate
0X4D1C297D39C5C1277964D0E3F8AA901493664530-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9957
0.0003070 Eth
$585,573.00
970,532.490 0X4D1C297D39C5C1277964D0E3F8AA901493664530
0.0728%
91
DeGate
0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.995
0.0003071 Eth
$512,778.00
641,634.370 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0482%
92
DeGate
0X44108F0223A3C3028F5FE7AEC7F9BB2E66BEF82F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9957
0.0003070 Eth
$504,054.00
913,873.200 0X44108F0223A3C3028F5FE7AEC7F9BB2E66BEF82F
0.0686%
93
WEEX
ARB-USDC$1.00
0.0003058 Eth
$501,777.00
677,418.253 ARB
0.0508%
94
DeGate
0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.995
0.0003071 Eth
$423,956.00
10,161,594.200 0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71
0.7627%
95
DeGate
0X4E15361FD6B4BB609FA63C81A2BE19D873717870-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9935
0.0003072 Eth
$355,361.00
368,035.057 0X4E15361FD6B4BB609FA63C81A2BE19D873717870
0.0276%
96
DeGate
0X3845BADADE8E6DFF049820680D1F14BD3903A5D0-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.995
0.0003071 Eth
$279,404.00
499,405.440 0X3845BADADE8E6DFF049820680D1F14BD3903A5D0
0.0375%
97
LBank
DOT-USDC$1.00
0.0003061 Eth
$244,189.00
36,222.969 DOT
0.0027%
98
DeGate
0X8687A10BCA6F139B25EB31020FCABB5782214764-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9935
0.0003072 Eth
$241,318.00
297,135.430 0X8687A10BCA6F139B25EB31020FCABB5782214764
0.0223%
99
DeGate
0X467719AD09025FCC6CF6F8311755809D45A5E5F3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.995
0.0003071 Eth
$213,723.00
288,285.940 0X467719AD09025FCC6CF6F8311755809D45A5E5F3
0.0216%
100
DeGate
0XDEF1CA1FB7FBCDC777520AA7F396B4E015F497AB-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9957
0.0003070 Eth
$196,095.00
248,448.870 0XDEF1CA1FB7FBCDC777520AA7F396B4E015F497AB
0.0186%

Contract Source Code Verified (Exact Match)

Contract Name:
FiatTokenProxy

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, Audited
/**
 *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

Contract ABI

[{"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"}]

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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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