Token Dai Stablecoin
Overview ERC20
Price
$1.00 @ 0.000279 ETH (+0.22%)
Fully Diluted Market Cap
Total Supply:
72,843,045.738705 DAI
Holders:
121,768 addresses
Contract:
Decimals:
18
Official Site:
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OVERVIEW
Multi-Collateral Dai, brings a lot of new and exciting features, such as support for new CDP collateral types and Dai Savings Rate.Market
Volume (24H) | : | $194,273,488.00 |
Market Capitalization | : | $4,819,792,599.00 |
Circulating Supply | : | 4,833,311,529.00 DAI |
Market Data Source: Coinmarketcap |
Update? Click here to update the token ICO / general information
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Uniswap V3 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.9987 0.0000141 Btc | $19,039,495.00 18,798,057.373 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 14.2644% |
2 | Uniswap V3 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $0.9994 0.0000141 Btc | $14,723,026.00 14,728,597.548 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 11.1764% |
3 | Uniswap V3 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.9975 0.0000141 Btc | $13,551,395.00 13,416,858.394 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 10.1811% |
4 | HTX | DAI-USDT | $0.9986 0.0000141 Btc | $12,579,734.00 12,644,537.321 DAI | 9.5950% |
5 | Uniswap V3 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.9997 0.0000141 Btc | $10,758,446.00 10,760,609.638 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 8.1654% |
6 | DODO (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $0.9973 0.0000141 Btc | $8,592,417.00 8,614,277.733 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 6.5367% |
7 | Uniswap V2 (Ethereum) | 0X9F8F72AA9304C8B593D555F12EF6589CC3A579A2-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $1.004 0.0000142 Btc | $7,927,959.00 2,429.571 0X9F8F72AA9304C8B593D555F12EF6589CC3A579A2 | 0.0018% |
8 | WhiteBIT | DAI-USDT | $0.9984 0.0000141 Btc | $6,412,434.00 6,422,686.140 DAI | 4.8737% |
9 | Binance | USDT-DAI | $0.9998 0.0000141 Btc | $6,363,411.00 6,366,689.600 USDT | 4.8312% |
10 | Cryptology | BTC-DAI | $0.9998 0.0000141 Btc | $3,819,261.00 54.080 BTC | 0.0000% |
11 | DigiFinex | DAI-USDT | $0.9994 0.0000141 Btc | $3,273,523.00 3,275,336.030 DAI | 2.4854% |
12 | BitMart | DAI-USDT | $1.00 0.0000141 Btc | $2,552,784.00 2,552,880.240 DAI | 1.9372% |
13 | Bitrue | DAI-USDT | $0.9994 0.0000142 Btc | $2,300,424.00 2,301,744.300 DAI | 1.7466% |
14 | Uniswap V3 (Polygon) | 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $0.9989 0.0000141 Btc | $2,297,774.00 2,300,262.194 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | 1.7455% |
15 | LBank | DAI-USDT | $1.00 0.0000141 Btc | $1,761,708.00 1,761,258.540 DAI | 1.3365% |
16 | Quickswap (v3) | 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $0.9994 0.0000141 Btc | $1,724,462.00 1,725,516.365 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | 1.3094% |
17 | BitMart | BTC-DAI | $0.9998 0.0000141 Btc | $1,595,884.00 22.539 BTC | 0.0000% |
18 | Binance | BTC-DAI | $0.9999 0.0000142 Btc | $1,507,842.00 21.643 BTC | 0.0000% |
19 | XT.COM | BTC-DAI | $0.9999 0.0000142 Btc | $1,454,992.00 20.893 BTC | 0.0000% |
20 | OKX | DAI-USDT | $1.00 0.0000142 Btc | $1,428,044.00 1,427,858.711 DAI | 1.0835% |
21 | Balancer V2 (Arbitrum) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $0.9997 0.0000141 Btc | $1,325,357.00 1,325,736.837 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 1.0060% |
22 | Trader Joe V2.1 (Arbitrum) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8 | $0.999 0.0000141 Btc | $1,151,086.00 1,152,252.008 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 0.8744% |
23 | Camelot V3 | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.9998 0.0000141 Btc | $1,119,970.00 1,120,030.536 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.8499% |
24 | Uniswap V3 (Polygon) | 0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $0.9991 0.0000141 Btc | $1,091,876.00 1,093,170.587 0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | 0.8295% |
25 | Uniswap V3 (Optimism) | 0X94B008AA00579C1307B0EF2C499AD98A8CE58E58-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $1.001 0.0000141 Btc | $993,453.00 992,968.594 0X94B008AA00579C1307B0EF2C499AD98A8CE58E58 | 0.7535% |
26 | Coinbase Exchange | DAI-USD | $0.9998 0.0000141 Btc | $925,699.00 925,883.848 DAI | 0.7026% |
27 | Uniswap V3 (Optimism) | 0X4200000000000000000000000000000000000006-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $1.003 0.0000142 Btc | $909,061.00 256.942 0X4200000000000000000000000000000000000006 | 0.0002% |
28 | XT.COM | DAI-USDT | $1.00 0.0000142 Btc | $897,361.00 897,193.680 DAI | 0.6808% |
29 | Uniswap V2 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $1.003 0.0000142 Btc | $866,403.00 858,732.435 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 0.6516% |
30 | Binance | ETH-DAI | $0.9998 0.0000141 Btc | $825,681.00 234.311 ETH | 0.0002% |
31 | Kraken | DAI-USDT | $0.9998 0.0000141 Btc | $805,233.00 805,428.837 DAI | 0.6112% |
32 | Kraken | DAI-EUR | $1.00 0.0000142 Btc | $779,854.00 779,732.822 DAI | 0.5917% |
33 | Bitget | DAI-USDT | $0.9999 0.0000141 Btc | $777,768.00 777,945.000 DAI | 0.5903% |
34 | Uniswap V3 (Optimism) | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $1.003 0.0000142 Btc | $774,729.00 772,547.171 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 0.5862% |
35 | Uniswap V3 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0X9F8F72AA9304C8B593D555F12EF6589CC3A579A2 | $0.9997 0.0000141 Btc | $732,375.00 729,335.324 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 0.5534% |
36 | HitBTC | USDT-DAI | $0.9998 0.0000141 Btc | $718,754.00 715,378.230 USDT | 0.5428% |
37 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $0.9989 0.0000141 Btc | $713,416.00 714,142.848 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5419% |
38 | Uniswap V3 (Arbitrum One) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $1.004 0.0000142 Btc | $655,836.00 653,583.979 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 0.4960% |
39 | Kraken | DAI-USD | $0.9999 0.0000141 Btc | $621,227.00 621,320.364 DAI | 0.4715% |
40 | BitMart | ETH-DAI | $0.9998 0.0000141 Btc | $620,318.00 172.821 ETH | 0.0001% |
41 | BitMart | DAI-USDC | $0.9993 0.0000141 Btc | $613,653.00 614,054.000 DAI | 0.4660% |
42 | Uniswap V3 (Optimism) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0X4200000000000000000000000000000000000006 | $0.9999 0.0000141 Btc | $558,833.00 551,158.172 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 0.4182% |
43 | HitBTC | DAI-USDC | $0.9968 0.0000141 Btc | $536,563.00 538,265.900 DAI | 0.4084% |
44 | Bybit | DAI-USDT | $0.9999 0.0000141 Btc | $493,555.00 493,726.880 DAI | 0.3747% |
45 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $0.999 0.0000141 Btc | $463,894.00 464,307.117 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.3523% |
46 | Uniswap V2 (Ethereum) | 0X40803CEA2B2A32BDA1BE61D3604AF6A814E70976-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $0.9998 0.0000141 Btc | $461,499.00 1,250,319.690 0X40803CEA2B2A32BDA1BE61D3604AF6A814E70976 | 0.9488% |
47 | Tapbit | DAI-USDT | $1.001 0.0000141 Btc | $456,479.00 455,971.100 DAI | 0.3460% |
48 | Sushiswap | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.9988 0.0000141 Btc | $452,004.00 447,915.297 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 0.3399% |
49 | Pancakeswap V3 (BSC) | 0X1AF3F329E8BE154074D8769D1FFA4EE058B1DBC3-0X55D398326F99059FF775485246999027B3197955 | $1.004 0.0000142 Btc | $451,246.00 449,124.196 0X1AF3F329E8BE154074D8769D1FFA4EE058B1DBC3 | 0.3408% |
50 | Uniswap V3 (Ethereum) | 0X02F92800F57BCD74066F5709F1DAA1A4302DF875-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $1.007 0.0000142 Btc | $449,869.00 115,524.548 0X02F92800F57BCD74066F5709F1DAA1A4302DF875 | 0.0877% |
51 | Uniswap V3 (Arbitrum One) | 0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.9992 0.0000141 Btc | $410,463.00 115.991 0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | 0.0001% |
52 | Uniswap V3 (Ethereum) | 0X03AB458634910AAD20EF5F1C8EE96F1D6AC54919-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $1.006 0.0000142 Btc | $404,205.00 143,032.743 0X03AB458634910AAD20EF5F1C8EE96F1D6AC54919 | 0.1085% |
53 | KuCoin | USDT-DAI | $0.9998 0.0000141 Btc | $380,701.00 380,624.620 USDT | 0.2888% |
54 | XT.COM | ETH-DAI | $0.9999 0.0000142 Btc | $377,654.00 107.111 ETH | 0.0001% |
55 | Bitunix | DAI-USDT | $0.9992 0.0000142 Btc | $352,850.00 353,148.400 DAI | 0.2680% |
56 | Uniswap V3 (Arbitrum One) | 0X7FB7EDE54259CB3D4E1EAF230C7E2B1FFC951E9A-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $0.9992 0.0000141 Btc | $314,447.00 619,512.319 0X7FB7EDE54259CB3D4E1EAF230C7E2B1FFC951E9A | 0.4701% |
57 | Hotcoin Global | DAI-USDT | $0.9991 0.0000141 Btc | $270,749.00 271,002.430 DAI | 0.2056% |
58 | Curve (Optimism) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0X7F5C764CBC14F9669B88837CA1490CCA17C31607 | $0.9988 0.0000141 Btc | $203,562.00 203,763.564 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 0.1546% |
59 | MEXC | DAI-USDT | $0.9999 0.0000142 Btc | $198,382.00 198,399.520 DAI | 0.1506% |
60 | Binance | BNB-DAI | $0.9998 0.0000141 Btc | $167,175.00 289.351 BNB | 0.0002% |
61 | Uniswap V3 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0X853D955ACEF822DB058EB8505911ED77F175B99E | $0.9983 0.0000141 Btc | $161,898.00 162,185.855 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 0.1231% |
62 | Emirex | USDT-DAI | $0.9998 0.0000142 Btc | $149,924.00 149,983.730 USDT | 0.1138% |
63 | BingX | DAI-USDT | $1.00 0.0000142 Btc | $147,949.00 147,924.395 DAI | 0.1122% |
64 | Gate.io | DAI-USDT | $0.9998 0.0000141 Btc | $141,987.00 141,963.059 DAI | 0.1077% |
65 | Curve (Optimism) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0X94B008AA00579C1307B0EF2C499AD98A8CE58E58 | $0.9987 0.0000141 Btc | $111,440.00 111,575.371 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 0.0847% |
66 | Uniswap V3 (Ethereum) | 0XF5581DFEFD8FB0E4AEC526BE659CFAB1F8C781DA-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $0.9998 0.0000141 Btc | $110,793.00 646,599.712 0XF5581DFEFD8FB0E4AEC526BE659CFAB1F8C781DA | 0.4907% |
67 | Kraken | BTC-DAI | $0.9997 0.0000141 Btc | $101,417.00 1.433 BTC | 0.0000% |
68 | Kraken | ETH-DAI | $0.9997 0.0000141 Btc | $95,136.00 26.592 ETH | 0.0000% |
69 | Aerodrome (Base) | 0X50C5725949A6F0C72E6C4A641F24049A917DB0CB-0X833589FCD6EDB6E08F4C7C32D4F71B54BDA02913 | $1.004 0.0000142 Btc | $86,684.00 86,480.459 0X50C5725949A6F0C72E6C4A641F24049A917DB0CB | 0.0656% |
70 | Uniswap V3 (Arbitrum One) | 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8 | $1.003 0.0000142 Btc | $84,330.00 84,162.763 0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | 0.0639% |
71 | Bitcointry Exchange | USDT-DAI | $0.9998 0.0000141 Btc | $79,712.00 79,799.149 USDT | 0.0606% |
72 | KuCoin | ETH-DAI | $0.9998 0.0000141 Btc | $77,532.00 21.675 ETH | 0.0000% |
73 | Quickswap | 0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $1.004 0.0000142 Btc | $70,044.00 67,895.924 0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | 0.0515% |
74 | FameEX | DAI-USDT | $1.00 0.0000141 Btc | $57,068.00 57,053.907 DAI | 0.0433% |
75 | Bitget | DAI-USDC | $0.9999 0.0000141 Btc | $48,434.00 48,443.000 DAI | 0.0368% |
76 | Coinbase Exchange | ETH-DAI | $0.9998 0.0000141 Btc | $44,741.00 12.492 ETH | 0.0000% |
77 | KuCoin | BTC-DAI | $0.9998 0.0000141 Btc | $43,034.00 0.607 BTC | 0.0000% |
78 | Bitvavo | DAI-EUR | $0.9986 0.0000141 Btc | $41,737.00 41,793.876 DAI | 0.0317% |
79 | Velodrome Finance v2 | 0X7F5C764CBC14F9669B88837CA1490CCA17C31607-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $1.00 0.0000141 Btc | $40,373.00 40,336.178 0X7F5C764CBC14F9669B88837CA1490CCA17C31607 | 0.0306% |
80 | OKX | BTC-DAI | $0.9998 0.0000141 Btc | $33,221.00 0.479 BTC | 0.0000% |
81 | Sushiswap (Polygon POS) | 0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $0.9951 0.0000141 Btc | $29,595.00 8.407 0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | 0.0000% |
82 | EXMO | DAI-USDT | $1.002 0.0000142 Btc | $28,359.00 28,315.459 DAI | 0.0215% |
83 | Phemex | DAI-USDT | $0.9991 0.0000141 Btc | $27,702.00 27,728.150 DAI | 0.0210% |
84 | Bybit | BTC-DAI | $0.9998 0.0000141 Btc | $24,023.00 0.347 BTC | 0.0000% |
85 | Uniswap V3 (Polygon) | 0X8A16D4BF8A0A716017E8D2262C4AC32927797A2F-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $1.002 0.0000142 Btc | $19,791.80 1,206.805 0X8A16D4BF8A0A716017E8D2262C4AC32927797A2F | 0.0009% |
86 | CoinEx | DAI-USDT | $1.00 0.0000142 Btc | $17,200.56 17,197.433 DAI | 0.0130% |
87 | Bitbank | DAI-JPY | $0.9999 0.0000141 Btc | $17,156.88 17,158.731 DAI | 0.0130% |
88 | PointPay | DAI-USDT | $1.00 0.0000141 Btc | $15,345.86 15,336.677 DAI | 0.0116% |
89 | ProBit Global | DAI-USDT | $1.00 0.0000141 Btc | $13,830.08 13,830.030 DAI | 0.0105% |
90 | PancakeSwap (v2) | 0X1AF3F329E8BE154074D8769D1FFA4EE058B1DBC3-BUSD | $1.002 0.0000142 Btc | $13,583.74 13,585.261 0X1AF3F329E8BE154074D8769D1FFA4EE058B1DBC3 | 0.0103% |
91 | Balancer V1 | 0X8F8221AFBB33998D8584A2B05749BA73C37A938A-DAI | $1.00 0.0000142 Btc | $13,306.51 74,416.096 0X8F8221AFBB33998D8584A2B05749BA73C37A938A | 0.0565% |
92 | Uniswap V3 (Ethereum) | 0X7DD9C5CBA05E151C895FDE1CF355C9A1D5DA6429-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $0.9983 0.0000141 Btc | $10,748.87 18,600.422 0X7DD9C5CBA05E151C895FDE1CF355C9A1D5DA6429 | 0.0141% |
93 | Uniswap V2 (Ethereum) | 0X6B175474E89094C44DA98B954EEDEAC495271D0F-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $1.001 0.0000142 Btc | $9,890.67 9,876.806 0X6B175474E89094C44DA98B954EEDEAC495271D0F | 0.0075% |
94 | Uniswap V2 (Ethereum) | 0X8F8221AFBB33998D8584A2B05749BA73C37A938A-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $1.004 0.0000142 Btc | $9,447.77 52,186.430 0X8F8221AFBB33998D8584A2B05749BA73C37A938A | 0.0396% |
95 | OKX | ETH-DAI | $0.9998 0.0000141 Btc | $6,231.60 1.760 ETH | 0.0000% |
96 | Quickswap | 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $0.9981 0.0000141 Btc | $5,433.59 5,462.746 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | 0.0041% |
97 | Bitso | DAI-MXN | $1.001 0.0000142 Btc | $5,038.72 5,032.842 DAI | 0.0038% |
98 | OKCoin Japan | DAI-JPY | $1.001 0.0000141 Btc | $3,870.37 3,868.043 DAI | 0.0029% |
99 | Balancer V1 | 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-DAI | $1.00 0.0000142 Btc | $2,542.70 1,771.502 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | 0.0013% |
100 | Uniswap V2 (Ethereum) | 0X50EEC6D765792DCFB0913C8403EF2A12E1B861A6-0X6B175474E89094C44DA98B954EEDEAC495271D0F | $0.9998 0.0000141 Btc | $1,065.08 24,627.729 0X50EEC6D765792DCFB0913C8403EF2A12E1B861A6 | 0.0187% |
Contract Name:
Dai
Compiler Version
v0.6.11+commit.5ef660b1
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: AGPL-3.0-or-later // Copyright (C) 2017, 2018, 2019 dbrock, rain, mrchico // Copyright (C) 2021 Dai Foundation // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // // You should have received a copy of the GNU Affero General Public License // along with this program. If not, see <https://www.gnu.org/licenses/>. pragma solidity ^0.6.11; // Improved Dai token contract Dai { // --- Auth --- mapping (address => uint256) public wards; function rely(address usr) external auth { wards[usr] = 1; emit Rely(usr); } function deny(address usr) external auth { wards[usr] = 0; emit Deny(usr); } modifier auth { require(wards[msg.sender] == 1, "Dai/not-authorized"); _; } // --- ERC20 Data --- string public constant name = "Dai Stablecoin"; string public constant symbol = "DAI"; string public constant version = "2"; uint8 public constant decimals = 18; uint256 public totalSupply; mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowance; mapping (address => uint256) public nonces; event Approval(address indexed owner, address indexed spender, uint256 value); event Transfer(address indexed from, address indexed to, uint256 value); event Rely(address indexed usr); event Deny(address indexed usr); // --- Math --- function _add(uint256 x, uint256 y) internal pure returns (uint256 z) { require((z = x + y) >= x); } function _sub(uint256 x, uint256 y) internal pure returns (uint256 z) { require((z = x - y) <= x); } // --- EIP712 niceties --- uint256 public immutable deploymentChainId; bytes32 private immutable _DOMAIN_SEPARATOR; bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); constructor() public { wards[msg.sender] = 1; emit Rely(msg.sender); uint256 chainId; assembly {chainId := chainid()} deploymentChainId = chainId; _DOMAIN_SEPARATOR = _calculateDomainSeparator(chainId); } function _calculateDomainSeparator(uint256 chainId) private view returns (bytes32) { return keccak256( abi.encode( keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"), keccak256(bytes(name)), keccak256(bytes(version)), chainId, address(this) ) ); } function DOMAIN_SEPARATOR() external view returns (bytes32) { uint256 chainId; assembly {chainId := chainid()} return chainId == deploymentChainId ? _DOMAIN_SEPARATOR : _calculateDomainSeparator(chainId); } // --- ERC20 Mutations --- function transfer(address to, uint256 value) external returns (bool) { require(to != address(0) && to != address(this), "Dai/invalid-address"); uint256 balance = balanceOf[msg.sender]; require(balance >= value, "Dai/insufficient-balance"); balanceOf[msg.sender] = balance - value; balanceOf[to] += value; emit Transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint256 value) external returns (bool) { require(to != address(0) && to != address(this), "Dai/invalid-address"); uint256 balance = balanceOf[from]; require(balance >= value, "Dai/insufficient-balance"); if (from != msg.sender) { uint256 allowed = allowance[from][msg.sender]; if (allowed != type(uint256).max) { require(allowed >= value, "Dai/insufficient-allowance"); allowance[from][msg.sender] = allowed - value; } } balanceOf[from] = balance - value; balanceOf[to] += value; emit Transfer(from, to, value); return true; } function approve(address spender, uint256 value) external returns (bool) { allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } function increaseAllowance(address spender, uint256 addedValue) external returns (bool) { uint256 newValue = _add(allowance[msg.sender][spender], addedValue); allowance[msg.sender][spender] = newValue; emit Approval(msg.sender, spender, newValue); return true; } function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool) { uint256 allowed = allowance[msg.sender][spender]; require(allowed >= subtractedValue, "Dai/insufficient-allowance"); allowed = allowed - subtractedValue; allowance[msg.sender][spender] = allowed; emit Approval(msg.sender, spender, allowed); return true; } // --- Mint/Burn --- function mint(address to, uint256 value) external auth { require(to != address(0) && to != address(this), "Dai/invalid-address"); balanceOf[to] = balanceOf[to] + value; // note: we don't need an overflow check here b/c balanceOf[to] <= totalSupply and there is an overflow check below totalSupply = _add(totalSupply, value); emit Transfer(address(0), to, value); } function burn(address from, uint256 value) external { uint256 balance = balanceOf[from]; require(balance >= value, "Dai/insufficient-balance"); if (from != msg.sender && wards[msg.sender] != 1) { uint256 allowed = allowance[from][msg.sender]; if (allowed != type(uint256).max) { require(allowed >= value, "Dai/insufficient-allowance"); allowance[from][msg.sender] = allowed - value; } } balanceOf[from] = balance - value; // note: we don't need overflow checks b/c require(balance >= value) and balance <= totalSupply totalSupply = totalSupply - value; emit Transfer(from, address(0), value); } // --- Approve by signature --- function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external { require(block.timestamp <= deadline, "Dai/permit-expired"); uint256 chainId; assembly {chainId := chainid()} bytes32 digest = keccak256(abi.encodePacked( "\x19\x01", chainId == deploymentChainId ? _DOMAIN_SEPARATOR : _calculateDomainSeparator(chainId), keccak256(abi.encode( PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline )) )); require(owner != address(0) && owner == ecrecover(digest, v, r, s), "Dai/invalid-permit"); allowance[owner][spender] = value; emit Approval(owner, spender, value); } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"usr","type":"address"}],"name":"Deny","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"usr","type":"address"}],"name":"Rely","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"usr","type":"address"}],"name":"deny","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"deploymentChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"usr","type":"address"}],"name":"rely","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"wards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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