ETH Price: $3,457.08 (-0.86%)

Token

USDC (USDC)
 

Overview

Max Total Supply

30,420,364,058.855479 USDC

Holders

2,509,400 ( 0.058%)

Market

Price

$1.00 @ 0.000290 ETH (+0.05%)

Onchain Market Cap

$30,450,784,422.91

Circulating Supply Market Cap

$43,276,495,838.00

Other Info

Token Contract (WITH 6 Decimals)

Balance
2.108339 USDC

Value
$2.11 ( ~0.000610341480328091 Eth) [0.0000%]
0x3247862a3027d4b22957df4abf3ca79f00e7ab31
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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):$3,535,746,749.00
Market Capitalization:$43,276,495,838.00
Circulating Supply:43,258,632,639.00 USDC
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume
1
Azbit
BTC-USDC$0.9998
0.0002886 Eth
$295,486,208.00
3,001.740 BTC
0.0002%
2
WEEX
BTC-USDC$1.00
0.0002883 Eth
$250,720,908.00
2,536.551 BTC
0.0001%
3
Binance
BTC-USDC$1.00
0.0002886 Eth
$243,434,969.00
2,471.529 BTC
0.0001%
4
Orca
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002886 Eth
$191,750,054.00
967,734.305 SO11111111111111111111111111111111111111112
0.0512%
5
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$1.002
0.0002889 Eth
$145,538,557.00
145,777,433.684 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
7.7103%
6
Uniswap V3 (Ethereum)
0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0002881 Eth
$139,620,640.00
40,074.400 0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2
0.0021%
7
Raydium (CLMM)
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$0.9999
0.0002880 Eth
$127,626,956.00
644,591.932 SO11111111111111111111111111111111111111112
0.0341%
8
Binance
ETH-USDC$1.00
0.0002881 Eth
$123,643,791.00
35,460.362 ETH
0.0019%
9
Bybit
BTC-USDC$0.999
0.0002882 Eth
$102,858,509.00
1,046.418 BTC
0.0001%
10
DigiFinex
BTC-USDC$0.9998
0.0002885 Eth
$70,243,998.00
709.765 BTC
0.0000%
11
Curve (Ethereum)
0X73A15FED60BF67631DC6CD7BC5B6E8DA8190ACF5-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.001
0.0002887 Eth
$59,136,160.00
59,084,807.426 0X73A15FED60BF67631DC6CD7BC5B6E8DA8190ACF5
3.1251%
12
Curve (Ethereum)
0X66A1E37C9B0EADDCA17D3662D6C05F4DECF3E110-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.001
0.0002887 Eth
$50,808,659.00
50,749,464.994 0X66A1E37C9B0EADDCA17D3662D6C05F4DECF3E110
2.6842%
13
Binance
SOL-USDC$1.001
0.0002880 Eth
$49,266,122.00
248,212.911 SOL
0.0131%
14
Binance
FDUSD-USDC$1.00
0.0002886 Eth
$39,960,644.00
39,854,542.000 FDUSD
2.1080%
15
Uniswap V3 (Ethereum)
0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$1.00
0.0002881 Eth
$38,795,280.00
395.012 0X2260FAC5E5542A773AA44FBCFEDF7C193BC2C599
0.0000%
16
DigiFinex
ETH-USDC$0.9998
0.0002885 Eth
$33,957,560.00
9,808.389 ETH
0.0005%
17
Meteora
2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.001
0.0002886 Eth
$32,311,210.00
883,804,742.469 2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV
46.7455%
18
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$0.9996
0.0002882 Eth
$31,720,535.00
31,486,027.620 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
1.6653%
19
Biconomy.com
ETH-USDC$0.9998
0.0002886 Eth
$31,633,923.00
9,085.684 ETH
0.0005%
20
Velodrome SlipStream
0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X4200000000000000000000000000000000000006$1.00
0.0002883 Eth
$31,136,561.00
31,255,711.734 0X0B2C639C533813F4AA9D7837CAF62653D097FF85
1.6532%
21
Kraken
USDC-USD$1.00
0.0002886 Eth
$29,819,163.00
29,819,163.323 USDC
1.5772%
22
Uniswap V3 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.00
0.0002881 Eth
$29,241,978.00
29,240,071.272 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
1.5465%
23
Uniswap V3 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$1.004
0.0002891 Eth
$23,638,716.00
23,859,226.110 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
1.2619%
24
WhiteBIT
BTC-USDC$1.002
0.0002885 Eth
$22,056,337.00
222.182 BTC
0.0000%
25
Orca
27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002886 Eth
$20,978,155.00
4,928,445.679 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4
0.2607%
26
Biconomy.com
BTC-USDC$0.9998
0.0002886 Eth
$20,769,276.00
211.112 BTC
0.0000%
27
Coinbase Exchange
USDT-USDC$1.00
0.0002880 Eth
$20,207,591.00
20,221,271.690 USDT
1.0695%
28
Azbit
ETH-USDC$0.9998
0.0002886 Eth
$18,494,423.00
5,303.974 ETH
0.0003%
29
Binance
DOGE-USDC$1.001
0.0002880 Eth
$17,337,702.00
51,945,720.000 DOGE
2.7475%
30
Cetus
0XDBA34672E30CB065B1F93E3AB55318768FD6FEF66C15942C9F7CB846E2F900E7::USDC::USDC-0X2::SUI::SUI$1.002
0.0002886 Eth
$17,248,007.00
17,301,291.209 0XDBA34672E30CB065B1F93E3AB55318768FD6FEF66C15942C9F7CB846E2F900E7::USDC::USDC
0.9151%
31
PancakeSwap V3 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.00
0.0002886 Eth
$16,931,673.00
16,877,967.576 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.8927%
32
Hotcoin
BTC-USDC$1.001
0.0002887 Eth
$16,706,303.00
168.644 BTC
0.0000%
33
Meteora
27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$0.9995
0.0002881 Eth
$16,263,312.00
3,822,395.826 27G8MTK7VTTCCHKPASJSDDKWWYFOQT6GGEUKIDVJIDD4
0.2022%
34
XT.COM
ETH-USDC$1.001
0.0002884 Eth
$15,545,771.00
4,456.226 ETH
0.0002%
35
WhiteBIT
ETH-USDC$1.002
0.0002885 Eth
$15,535,177.00
4,471.022 ETH
0.0002%
36
Binance
ADA-USDC$1.001
0.0002876 Eth
$14,708,401.00
15,948,981.200 ADA
0.8436%
37
Orca
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.00
0.0002886 Eth
$13,933,992.00
70,318.212 SO11111111111111111111111111111111111111112
0.0037%
38
LATOKEN
USDC-USDT$0.9999
0.0002886 Eth
$13,143,530.00
13,145,175.777 USDC
0.6953%
39
Uniswap V3 (Avalanche)
0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$1.00
0.0002880 Eth
$12,595,757.00
308,124.382 0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7
0.0163%
40
Meteora
SO11111111111111111111111111111111111111112-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.001
0.0002886 Eth
$11,549,210.00
58,205.500 SO11111111111111111111111111111111111111112
0.0031%
41
Hotcoin
ETH-USDC$1.00
0.0002886 Eth
$9,415,064.00
2,717.664 ETH
0.0001%
42
KuCoin
BTC-USDC$0.9995
0.0002881 Eth
$9,210,697.00
93.032 BTC
0.0000%
43
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$0.9996
0.0002882 Eth
$9,142,566.00
9,147,419.623 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.4838%
44
LFJ V2.2 (Avalanche)
0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7-0XB97EF9EF8734C71904D8002F8B6BC66DD9C48A6E$0.9995
0.0002881 Eth
$8,894,699.00
8,905,801.706 0X9702230A8EA53601F5CD2DC00FDBC13D4DF4A8C7
0.4710%
45
Dexalot
USDT-USDC$1.001
0.0002880 Eth
$8,697,482.00
8,694,564.346 USDT
0.4599%
46
Deribit Spot
BTC-USDC$1.001
0.0002881 Eth
$8,566,996.00
87.200 BTC
0.0000%
47
Camelot V3
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8$0.9998
0.0002885 Eth
$8,436,247.00
8,437,798.331 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.4463%
48
Meteora
2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV-EPJFWDD5AUFQSSQEM2QN1XZYBAPC8G4WEGGKZWYTDT1V$1.001
0.0002886 Eth
$8,296,789.00
226,633,320.357 2ZMMHCVQEXDTDE6VSFS7S7D5OUODFJHE8VD1GNBOUAUV
11.9869%
49
KuCoin
ETH-USDC$0.9995
0.0002881 Eth
$7,264,259.00
2,097.301 ETH
0.0001%
50
KuCoin
USDC-USDT$0.9996
0.0002882 Eth
$6,380,304.00
6,382,716.780 USDC
0.3376%
51
Slex
ETH-USDC$1.002
0.0002885 Eth
$6,193,409.00
1,773.757 ETH
0.0001%
52
Dex-Trade
BTC-USDC$0.9995
0.0002881 Eth
$5,294,219.00
53.512 BTC
0.0000%
53
Binance
HBAR-USDC$1.001
0.0002884 Eth
$5,230,940.00
16,397,369.000 HBAR
0.8673%
54
HTX
BTC-USDC$1.00
0.0002886 Eth
$5,064,877.00
51.463 BTC
0.0000%
55
HTX
ETH-USDC$1.00
0.0002886 Eth
$4,773,929.00
1,370.375 ETH
0.0001%
56
QMall
ETH-USDC$1.001
0.0002882 Eth
$4,361,564.00
1,249.741 ETH
0.0001%
57
Azbit
LTC-USDC$0.9998
0.0002886 Eth
$4,315,199.00
39,785.200 LTC
0.0021%
58
BingX
DOGE-USDC$0.999
0.0002882 Eth
$4,191,369.00
12,584,179.000 DOGE
0.6656%
59
Dex-Trade
USDC-USDT$1.001
0.0002885 Eth
$4,024,534.00
4,018,865.000 USDC
0.2126%
60
Tapbit
XRP-USDC$0.9998
0.0002886 Eth
$3,936,086.00
1,714,817.000 XRP
0.0907%
61
Coinbase Exchange
EURC-USDC$0.9998
0.0002886 Eth
$3,588,625.00
3,453,781.000 EURC
0.1827%
62
BYDFi
BTC-USDC$1.00
0.0002884 Eth
$3,405,241.00
34.449 BTC
0.0000%
63
Azbit
XRP-USDC$0.9997
0.0002882 Eth
$3,177,506.00
1,383,258.490 XRP
0.0732%
64
OKX
HBAR-USDC$1.00
0.0002886 Eth
$2,822,652.00
8,986,245.661 HBAR
0.4753%
65
Cube
BTC-USDC$0.9999
0.0002887 Eth
$2,795,338.00
28.420 BTC
0.0000%
66
WhiteBIT
XRP-USDC$1.002
0.0002885 Eth
$2,744,610.00
1,184,775.900 XRP
0.0627%
67
Kraken
USDC-GBP$1.00
0.0002886 Eth
$2,737,609.00
2,737,341.292 USDC
0.1448%
68
BYDFi
ETH-USDC$1.001
0.0002876 Eth
$2,644,056.00
761.760 ETH
0.0000%
69
Binance
PENGU-USDC$1.00
0.0002886 Eth
$2,597,214.00
71,150,683.000 PENGU
3.7632%
70
KuCoin
USDT-USDC$0.9995
0.0002881 Eth
$2,331,777.00
2,335,207.900 USDT
0.1235%
71
tanX
BTC-USDC$0.9998
0.0002886 Eth
$2,257,001.00
22.989 BTC
0.0000%
72
PointPay
BTC-USDC$1.00
0.0002888 Eth
$2,245,776.00
22.792 BTC
0.0000%
73
Binance US
BTC-USDC$1.002
0.0002880 Eth
$2,044,118.00
20.587 BTC
0.0000%
74
PointPay
ETH-USDC$0.9995
0.0002881 Eth
$2,001,044.00
574.014 ETH
0.0000%
75
Deribit Spot
STETH-USDC$0.9998
0.0002883 Eth
$1,930,300.00
554.595 STETH
0.0000%
76
Binance
TAO-USDC$0.9998
0.0002882 Eth
$1,569,588.00
3,097.394 TAO
0.0002%
77
Azbit
ADA-USDC$0.9998
0.0002886 Eth
$1,456,809.00
1,580,889.670 ADA
0.0836%
78
Backpack Exchange
SOL-USDC$1.001
0.0002886 Eth
$1,454,264.00
7,343.220 SOL
0.0004%
79
WhiteBIT
ADA-USDC$0.9998
0.0002886 Eth
$1,303,660.00
1,426,384.500 ADA
0.0754%
80
Deribit Spot
XRP-USDC$1.002
0.0002885 Eth
$1,260,340.00
548,251.000 XRP
0.0290%
81
Solidly V3 (Optimism)
0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X7F5C764CBC14F9669B88837CA1490CCA17C31607$0.9996
0.0002882 Eth
$1,243,361.00
1,243,741.659 0X0B2C639C533813F4AA9D7837CAF62653D097FF85
0.0658%
82
KuCoin
XRP-USDC$0.9995
0.0002881 Eth
$895,947.00
387,662.178 XRP
0.0205%
83
Dex-Trade
SOL-USDC$0.9996
0.0002875 Eth
$867,892.00
4,397.498 SOL
0.0002%
84
Biconomy.com
USDT-USDC$1.00
0.0002883 Eth
$846,798.00
847,427.358 USDT
0.0448%
85
WEEX
AVAX-USDC$0.9995
0.0002881 Eth
$804,137.00
20,087.764 AVAX
0.0011%
86
OKX
NEAR-USDC$1.00
0.0002886 Eth
$687,115.00
124,292.153 NEAR
0.0066%
87
Solidly V3 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$0.9454
0.0002723 Eth
$608,564.00
609,960.414 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0323%
88
Solidly V3 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0XDAC17F958D2EE523A2206206994597C13D831EC7$1.00
0.0002881 Eth
$608,452.00
608,572.152 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.0322%
89
PointPay
SOL-USDC$1.002
0.0002885 Eth
$529,510.00
2,665.281 SOL
0.0001%
90
BingX
UNI-USDC$0.999
0.0002882 Eth
$462,373.00
32,646.873 UNI
0.0017%
91
DeGate
0XB50721BCF8D664C30412CFBC6CF7A15145234AD1-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$431,126.00
535,521.550 0XB50721BCF8D664C30412CFBC6CF7A15145234AD1
0.0283%
92
DeGate
0X7420B4B9A0110CDC71FB720908340C03F9BC03EC-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$413,449.00
10,529,127.500 0X7420B4B9A0110CDC71FB720908340C03F9BC03EC
0.5569%
93
DeGate
0X1C88D38D04ACD3EDD9051EC587C67ABFF04BF30D-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$368,878.00
66,849.669 0X1C88D38D04ACD3EDD9051EC587C67ABFF04BF30D
0.0035%
94
DeGate
0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$245,715.00
5,369,712.400 0X7A58C0BE72BE218B41C608B7FE7C5BB630736C71
0.2840%
95
Solidly V3 (Base)
0X4200000000000000000000000000000000000006-0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913$1.00
0.0002882 Eth
$221,922.00
63.673 0X4200000000000000000000000000000000000006
0.0000%
96
DeGate
0X3845BADADE8E6DFF049820680D1F14BD3903A5D0-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$218,117.00
352,429.500 0X3845BADADE8E6DFF049820680D1F14BD3903A5D0
0.0186%
97
DeGate
0X4E15361FD6B4BB609FA63C81A2BE19D873717870-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$216,159.00
218,865.657 0X4E15361FD6B4BB609FA63C81A2BE19D873717870
0.0116%
98
DeGate
0X6985884C4392D348587B19CB9EAAF157F13271CD-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9976
0.0002878 Eth
$215,904.00
35,584.772 0X6985884C4392D348587B19CB9EAAF157F13271CD
0.0019%
99
DeGate
0X8687A10BCA6F139B25EB31020FCABB5782214764-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$165,909.00
184,180.648 0X8687A10BCA6F139B25EB31020FCABB5782214764
0.0097%
100
DeGate
0X467719AD09025FCC6CF6F8311755809D45A5E5F3-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.9988
0.0002877 Eth
$158,955.00
195,580.180 0X467719AD09025FCC6CF6F8311755809D45A5E5F3
0.0103%

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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