ETH Price: $3,336.04 (-1.22%)

Token

USDC (USDC)
 

Overview

Max Total Supply

30,300,886,425.898635 USDC

Holders

2,503,454 ( -0.006%)

Market

Price

$1.00 @ 0.000300 ETH (-0.03%)

Onchain Market Cap

$30,293,765,717.59

Circulating Supply Market Cap

$42,945,520,346.00

Other Info

Token Contract (WITH 6 Decimals)

Filtered by Token Holder
Uniswap V2: INST-USDC
Balance
3.284733 USDC

Value
$3.28 ( ~0.000983202054251863 Eth) [0.0000%]
0x24f5b184e383ddbbaebf2278773630bbb511f8c0
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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):$3,966,810,756.00
Market Capitalization:$42,945,520,346.00
Circulating Supply:42,944,345,425.00 USDC
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Binance
BTC-USDC$0.9997
0.0002994 Eth
$334,025,321.00
3,504.789 BTC
0.0000%
2
Orca
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002994 Eth
$276,807,502.00
1,521,205.250 SO11111111111111111111111111111111111111112
0.0017%
3
Binance
ETH-USDC$1.00
0.0002994 Eth
$240,705,380.00
73,050.405 ETH
0.0001%
4
Azbit
BTC-USDC$1.00
0.0002995 Eth
$218,058,299.00
2,284.283 BTC
0.0000%
5
Bybit
BTC-USDC$1.00
0.0002993 Eth
$190,620,815.00
2,000.090 BTC
0.0000%
6
Bybit
ETH-USDC$1.00
0.0002993 Eth
$155,922,162.00
47,227.642 ETH
0.0001%
7
OKX
BTC-USDC$0.9997
0.0002994 Eth
$112,191,938.00
1,177.744 BTC
0.0000%
8
DigiFinex
BTC-USDC$0.9999
0.0002993 Eth
$95,535,816.00
994.524 BTC
0.0000%
9
Binance
SOL-USDC$0.9999
0.0002997 Eth
$75,092,576.00
412,908.719 SOL
0.0005%
10
OKX
ETH-USDC$0.9999
0.0002994 Eth
$74,244,797.00
22,484.441 ETH
0.0000%
11
DigiFinex
ETH-USDC$0.9999
0.0002993 Eth
$67,788,660.00
20,305.566 ETH
0.0000%
12
Binance
XRP-USDC$1.00
0.0002994 Eth
$67,264,100.00
30,507,049.000 XRP
0.0338%
13
Orca
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002994 Eth
$42,753,833.00
235,005.437 SO11111111111111111111111111111111111111112
0.0003%
14
Binance
FDUSD-USDC$1.00
0.0002994 Eth
$37,846,134.00
37,922,323.000 FDUSD
0.0421%
15
Orca
27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002994 Eth
$33,351,939.00
8,068,625.699 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4
0.0089%
16
WhiteBIT
ETH-USDC$1.00
0.0002991 Eth
$33,330,105.00
9,970.302 ETH
0.0000%
17
Binance
ADA-USDC$1.00
0.0002994 Eth
$30,377,031.00
34,170,368.100 ADA
0.0379%
18
XT.COM
ETH-USDC$1.00
0.0002994 Eth
$30,080,643.00
9,129.019 ETH
0.0000%
19
WhiteBIT
BTC-USDC$0.9997
0.0002994 Eth
$28,631,303.00
298.135 BTC
0.0000%
20
Meteora
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002994 Eth
$25,877,121.00
142,315.343 SO11111111111111111111111111111111111111112
0.0002%
21
WEEX
DOGE-USDC$0.9996
0.0002987 Eth
$25,101,341.00
79,324,081.098 DOGE
0.0880%
22
WEEX
XRP-USDC$0.9999
0.0002994 Eth
$25,048,570.00
11,355,401.458 XRP
0.0126%
23
Binance
BNB-USDC$1.00
0.0002985 Eth
$24,271,230.00
36,819.813 BNB
0.0000%
24
Azbit
ETH-USDC$1.00
0.0002995 Eth
$23,833,935.00
7,231.515 ETH
0.0000%
25
Meteora
2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002994 Eth
$23,461,043.00
889,241,999.789 2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV
0.9861%
26
Curve (Ethereum)
0X4C9EDD5852CD905F086C759E8383E09BFF1E68B3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.999
0.0002991 Eth
$21,260,276.00
21,291,601.676 0X4C9EDD5852CD905F086C759E8383E09BFF1E68B3
0.0236%
27
Bybit
SOL-USDC$1.00
0.0002993 Eth
$21,055,215.00
115,713.778 SOL
0.0001%
28
Binance
DOGE-USDC$1.00
0.0002994 Eth
$20,749,226.00
66,234,695.000 DOGE
0.0734%
29
LFJ V2.1 (Avalanche)
0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$1.00
0.0002994 Eth
$19,655,869.00
533,714.542 0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7
0.0006%
30
Camelot V3
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8$0.9989
0.0002990 Eth
$18,609,025.00
18,629,838.340 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.0207%
31
Uniswap V3 (Avalanche)
0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$1.00
0.0002994 Eth
$17,593,920.00
479,247.338 0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7
0.0005%
32
LFJ V2.2 (Avalanche)
0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$1.00
0.0002994 Eth
$16,677,496.00
16,690,783.772 0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7
0.0185%
33
Meteora
27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002993 Eth
$16,175,133.00
3,917,440.598 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4
0.0043%
34
Hotcoin
ETH-USDC$1.00
0.0002991 Eth
$14,379,648.00
4,303.393 ETH
0.0000%
35
Binance
SUI-USDC$0.9999
0.0002998 Eth
$11,520,818.00
2,664,779.100 SUI
0.0030%
36
Meteora
3NZ9JMVBMGAQOCYBIC2C7LQCJSCMGSAZ6VQQTDZCQMJH-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002994 Eth
$11,315,755.00
118.969 3NZ9JMVBMGAQOCYBIC2C7LQCJSCMGSAZ6VQQTDZCQMJH
0.0000%
37
OKX
XRP-USDC$0.9999
0.0002994 Eth
$8,369,903.00
3,801,705.396 XRP
0.0042%
38
Kraken
BTC-USDC$1.00
0.0002996 Eth
$8,155,473.00
84.902 BTC
0.0000%
39
KuCoin
BTC-USDC$0.9997
0.0002994 Eth
$7,856,070.00
81.851 BTC
0.0000%
40
Azbit
SOL-USDC$1.00
0.0002995 Eth
$7,629,178.00
41,925.120 SOL
0.0000%
41
Dex-Trade
BTC-USDC$1.00
0.0002994 Eth
$7,261,915.00
75.590 BTC
0.0000%
42
KuCoin
ETH-USDC$0.9997
0.0002994 Eth
$6,257,355.00
1,876.170 ETH
0.0000%
43
BingX
BTC-USDC$0.9999
0.0002994 Eth
$5,735,351.00
60.165 BTC
0.0000%
44
Coinbase Exchange
EURC-USDC$1.00
0.0002995 Eth
$5,546,527.00
5,333,947.000 EURC
0.0059%
45
OKX
SOL-USDC$0.9999
0.0002994 Eth
$5,487,790.00
30,120.349 SOL
0.0000%
46
Bitget
BTC-USDC$1.00
0.0002993 Eth
$5,473,228.00
57.367 BTC
0.0000%
47
OKX
USDT-USDC$0.9999
0.0002994 Eth
$5,451,857.00
5,457,444.006 USDT
0.0061%
48
HTX
BTC-USDC$0.9999
0.0002994 Eth
$5,355,677.00
56.100 BTC
0.0000%
49
Binance
AAVE-USDC$1.00
0.0002994 Eth
$5,202,019.00
16,338.303 AAVE
0.0000%
50
Bitget
ETH-USDC$1.00
0.0002993 Eth
$5,032,648.00
1,525.768 ETH
0.0000%
51
HTX
ETH-USDC$0.9999
0.0002994 Eth
$5,026,029.00
1,520.304 ETH
0.0000%
52
Binance
HBAR-USDC$0.9999
0.0002998 Eth
$4,868,398.00
18,455,989.000 HBAR
0.0205%
53
BingX
DOGE-USDC$0.9999
0.0002994 Eth
$4,529,824.00
14,446,978.000 DOGE
0.0160%
54
BingX
ETH-USDC$0.9999
0.0002994 Eth
$4,506,411.00
1,366.162 ETH
0.0000%
55
Deribit Spot
STETH-USDC$0.9999
0.0002997 Eth
$4,115,218.00
1,246.329 STETH
0.0000%
56
PointPay
ETH-USDC$1.00
0.0002994 Eth
$3,990,310.00
1,211.134 ETH
0.0000%
57
Binance
RUNE-USDC$1.00
0.0002994 Eth
$3,932,933.00
791,371.300 RUNE
0.0009%
58
KuCoin
XRP-USDC$1.00
0.0002994 Eth
$3,439,655.00
1,558,439.775 XRP
0.0017%
59
XT.COM
BTC-USDC$1.00
0.0002994 Eth
$3,341,218.00
35.044 BTC
0.0000%
60
Azbit
ADA-USDC$1.00
0.0002994 Eth
$2,980,378.00
3,352,379.160 ADA
0.0037%
61
WEEX
SOL-USDC$1.00
0.0002994 Eth
$2,972,630.00
16,348.250 SOL
0.0000%
62
Binance
ENA-USDC$1.00
0.0002994 Eth
$2,966,740.00
2,831,018.330 ENA
0.0031%
63
Bybit
DOGE-USDC$1.00
0.0002993 Eth
$2,914,166.00
9,295,785.200 DOGE
0.0103%
64
Binance
DOT-USDC$1.00
0.0002994 Eth
$2,621,333.00
379,855.220 DOT
0.0004%
65
WhiteBIT
ADA-USDC$1.00
0.0002991 Eth
$2,517,693.00
2,799,010.300 ADA
0.0031%
66
KuCoin
USDT-USDC$0.9997
0.0002994 Eth
$2,377,677.00
2,380,585.140 USDT
0.0026%
67
Bybit
ADA-USDC$1.00
0.0002993 Eth
$2,361,681.00
2,675,440.800 ADA
0.0030%
68
tanX
BTC-USDC$1.00
0.0002993 Eth
$2,316,207.00
24.311 BTC
0.0000%
69
Binance
UNI-USDC$0.9999
0.0002998 Eth
$2,244,165.00
161,253.850 UNI
0.0002%
70
Binance
WIF-USDC$1.00
0.0002994 Eth
$2,190,175.00
1,132,580.830 WIF
0.0013%
71
Binance
LTC-USDC$1.00
0.0002994 Eth
$2,144,972.00
21,165.175 LTC
0.0000%
72
WEEX
BNB-USDC$1.001
0.0002993 Eth
$2,003,622.00
2,969.948 BNB
0.0000%
73
LBank
FIL-USDC$1.00
0.0002995 Eth
$1,951,260.00
394,937.327 FIL
0.0004%
74
Binance
SHIB-USDC$1.00
0.0002994 Eth
$1,921,446.00
88,840,883,784.000 SHIB
98.5148%
75
Binance
ARB-USDC$1.00
0.0002994 Eth
$1,825,171.00
2,437,151.500 ARB
0.0027%
76
OKX
DOGE-USDC$0.9999
0.0002994 Eth
$1,644,390.00
5,243,006.740 DOGE
0.0058%
77
Binance
FET-USDC$1.00
0.0002994 Eth
$1,505,862.00
1,193,480.000 FET
0.0013%
78
WEEX
ADA-USDC$1.00
0.0002991 Eth
$1,500,270.00
1,670,997.428 ADA
0.0019%
79
Binance
INJ-USDC$0.9996
0.0002988 Eth
$1,370,484.00
66,763.250 INJ
0.0001%
80
OKX
ADA-USDC$0.9999
0.0002994 Eth
$1,079,366.00
1,212,691.181 ADA
0.0013%
81
Deribit Spot
SOL-USDC$1.00
0.0002994 Eth
$937,416.00
5,155.400 SOL
0.0000%
82
BingX
UNI-USDC$0.9999
0.0002994 Eth
$891,996.00
64,094.692 UNI
0.0001%
83
Tokpie
DAI-USDC$0.9998
0.0002996 Eth
$680,814.00
680,957.040 DAI
0.0008%
84
Bybit
LTC-USDC$1.00
0.0002993 Eth
$658,147.00
6,498.346 LTC
0.0000%
85
DeGate
0X4D1C297D39C5C1277964D0E3F8AA901493664530-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9975
0.0002986 Eth
$623,198.00
1,027,040.510 0X4D1C297D39C5C1277964D0E3F8AA901493664530
0.0011%
86
DeGate
0XD533A949740BB3306D119CC777FA900BA034CD52-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.997
0.0002982 Eth
$555,924.00
677,500.916 0XD533A949740BB3306D119CC777FA900BA034CD52
0.0008%
87
WEEX
ARB-USDC$1.00
0.0002991 Eth
$501,123.00
655,127.763 ARB
0.0007%
88
WEEX
LTC-USDC$1.00
0.0002994 Eth
$500,765.00
4,884.242 LTC
0.0000%
89
DeGate
0X44108F0223A3C3028F5FE7AEC7F9BB2E66BEF82F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9975
0.0002986 Eth
$496,753.00
897,116.460 0X44108F0223A3C3028F5FE7AEC7F9BB2E66BEF82F
0.0010%
90
Backpack Exchange
BTC-USDC$1.002
0.0002997 Eth
$468,584.00
4.892 BTC
0.0000%
91
DeGate
0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.997
0.0002982 Eth
$446,330.00
10,630,567.800 0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71
0.0118%
92
WEEX
TON-USDC$0.9999
0.0002994 Eth
$395,355.00
73,253.700 TON
0.0001%
93
DeGate
0X4E15361FD6B4BB609FA63C81A2BE19D873717870-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.997
0.0002982 Eth
$388,419.00
400,451.391 0X4E15361FD6B4BB609FA63C81A2BE19D873717870
0.0004%
94
DeGate
0X3845BADADE8E6DFF049820680D1F14BD3903A5D0-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.997
0.0002982 Eth
$298,002.00
529,439.830 0X3845BADADE8E6DFF049820680D1F14BD3903A5D0
0.0006%
95
Uniswap V3 (Base)
0XEEC468333CCC16D4BF1CEF497A56CF8C0AAE4CA3-0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913$1.00
0.0002994 Eth
$287,867.00
11,695,631.819 0XEEC468333CCC16D4BF1CEF497A56CF8C0AAE4CA3
0.0130%
96
LBank
DOT-USDC$0.9998
0.0002998 Eth
$264,162.00
37,843.969 DOT
0.0000%
97
DeGate
0X8687A10BCA6F139B25EB31020FCABB5782214764-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.997
0.0002982 Eth
$248,330.00
303,599.736 0X8687A10BCA6F139B25EB31020FCABB5782214764
0.0003%
98
DeGate
0X467719AD09025FCC6CF6F8311755809D45A5E5F3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.997
0.0002982 Eth
$224,081.00
300,555.100 0X467719AD09025FCC6CF6F8311755809D45A5E5F3
0.0003%
99
Solidly V3 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$0.9999
0.0002993 Eth
$216,654.00
216,890.638 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0002%
100
DeGate
0XDEF1CA1FB7FBCDC777520AA7F396B4E015F497AB-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9975
0.0002986 Eth
$198,395.00
255,289.920 0XDEF1CA1FB7FBCDC777520AA7F396B4E015F497AB
0.0003%

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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