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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,698 ( 0.037%)
Market
Price
$23.21 @ 0.006419 ETH (-1.00%)
Onchain Market Cap
$23,210,000,000.00
Circulating Supply Market Cap
$14,639,996,039.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $23.18 0.0063986 Eth | $60,403,283.00 2,590,260.740 LINK | 18.7515% |
2 | Websea | LINK-USDT | $23.19 0.0064015 Eth | $59,678,664.00 0.000 LINK | 0.0000% |
3 | Coinbase Exchange | LINK-USD | $23.14 0.0063981 Eth | $24,411,108.00 1,054,748.880 LINK | 7.6356% |
4 | Slex | LINK-USDT | $23.16 0.0064026 Eth | $23,891,844.00 1,024,173.890 LINK | 7.4142% |
5 | WhiteBIT | LINK-USDT | $23.11 0.0063899 Eth | $19,946,142.00 863,057.240 LINK | 6.2479% |
6 | Bybit | LINK-USDT | $23.11 0.0063896 Eth | $16,062,965.00 688,819.471 LINK | 4.9865% |
7 | WEEX | LINK-USDT | $23.13 0.0063855 Eth | $15,840,725.00 679,228.580 LINK | 4.9171% |
8 | MEXC | LINK-USDT | $23.14 0.0063976 Eth | $15,346,011.00 663,094.610 LINK | 4.8003% |
9 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.16 0.0064018 Eth | $15,057,093.00 645,122.842 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 4.6702% |
10 | P2B | LINK-USDT | $23.16 0.0063946 Eth | $12,087,402.00 521,914.810 LINK | 3.7783% |
11 | CoinW | LINK-USDT | $23.10 0.0063882 Eth | $10,865,811.00 470,287.130 LINK | 3.4045% |
12 | OKX | LINK-USDT | $23.09 0.0063853 Eth | $10,341,355.00 443,507.489 LINK | 3.2107% |
13 | BVOX | LINK-USDT | $23.20 0.0064056 Eth | $8,885,315.00 380,697.530 LINK | 2.7560% |
14 | HTX | LINK-USDT | $23.11 0.0063890 Eth | $7,318,649.00 313,646.542 LINK | 2.2706% |
15 | XT.COM | LINK-USDT | $23.13 0.0063948 Eth | $6,030,139.00 258,654.590 LINK | 1.8725% |
16 | Azbit | LINK-USDT | $23.18 0.0063940 Eth | $6,022,197.00 258,154.100 LINK | 1.8688% |
17 | Coinstore | LINK-USDT | $23.24 0.0063958 Eth | $5,626,696.00 241,256.560 LINK | 1.7465% |
18 | Bithumb | LINK-KRW | $23.28 0.0064359 Eth | $4,530,727.00 194,611.639 LINK | 1.4088% |
19 | BYDFi | LINK-USDT | $23.21 0.0063900 Eth | $3,904,664.00 168,200.530 LINK | 1.2176% |
20 | BTSE | LINK-USDT | $23.18 0.0063967 Eth | $3,039,327.00 131,123.133 LINK | 0.9492% |
21 | LATOKEN | LINK-USDT | $23.18 0.0063992 Eth | $2,932,840.00 126,538.054 LINK | 0.9160% |
22 | Hotcoin | LINK-USDT | $23.19 0.0064006 Eth | $2,099,416.00 90,550.090 LINK | 0.6555% |
23 | Bitvavo | LINK-EUR | $23.16 0.0064026 Eth | $1,961,258.00 84,666.266 LINK | 0.6129% |
24 | Dex-Trade | LINK-USDT | $23.12 0.0063913 Eth | $1,925,019.00 83,276.000 LINK | 0.6029% |
25 | Dcoin | LINK-USDT | $23.20 0.0063997 Eth | $1,817,485.00 78,349.000 LINK | 0.5672% |
26 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.13 0.0063953 Eth | $1,681,222.00 72,322.503 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.5236% |
27 | CoinEx | LINK-USDT | $23.27 0.0064028 Eth | $1,641,740.00 70,477.994 LINK | 0.5102% |
28 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.12 0.0063930 Eth | $1,548,278.00 66,601.367 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.4821% |
29 | KuCoin | LINK-USDT | $23.12 0.0063907 Eth | $1,480,233.00 64,029.096 LINK | 0.4635% |
30 | tanX | LINK-USDC | $23.14 0.0063864 Eth | $1,110,513.00 47,559.410 LINK | 0.3443% |
31 | PointPay | LINK-USDT | $23.28 0.0064049 Eth | $971,247.00 41,664.559 LINK | 0.3016% |
32 | Trubit | LINK-USDT | $23.13 0.0063932 Eth | $921,740.00 39,533.630 LINK | 0.2862% |
33 | EXMO | LINK-USDT | $23.10 0.0063873 Eth | $868,011.00 37,574.414 LINK | 0.2720% |
34 | Coinbase Exchange | LINK-EUR | $23.11 0.0063886 Eth | $854,540.00 36,976.340 LINK | 0.2677% |
35 | WhiteBIT | LINK-TRY | $23.12 0.0063918 Eth | $741,516.00 32,075.400 LINK | 0.2322% |
36 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.16 0.0063933 Eth | $674,446.00 28,919.391 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2094% |
37 | WhiteBIT | LINK-BTC | $23.11 0.0063906 Eth | $668,517.00 28,922.940 LINK | 0.2094% |
38 | Bybit | LINK-USDC | $23.10 0.0063862 Eth | $620,728.00 26,662.774 LINK | 0.1930% |
39 | Bitstamp | LINK-EUR | $23.17 0.0064068 Eth | $620,160.00 26,763.021 LINK | 0.1937% |
40 | Bitstamp | LINK-USD | $23.15 0.0064006 Eth | $606,986.00 26,219.699 LINK | 0.1898% |
41 | Gemini | LINK-USD | $23.07 0.0063772 Eth | $603,202.00 26,152.040 LINK | 0.1893% |
42 | Bitbank | LINK-JPY | $23.03 0.0063580 Eth | $516,016.00 22,407.835 LINK | 0.1622% |
43 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.16 0.0064012 Eth | $515,019.00 34,416.186 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2491% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.22 0.0064125 Eth | $490,705.00 21,167.433 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1532% |
45 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.14 0.0063965 Eth | $479,469.00 483,763.798 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.5021% |
46 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.22 0.0064189 Eth | $457,278.00 19,477.891 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.1410% |
47 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.27 0.0064335 Eth | $414,794.00 17,779.658 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1287% |
48 | Bitbegin | LINK-USDT | $23.19 0.0063967 Eth | $412,078.00 17,656.945 LINK | 0.1278% |
49 | BigONE | LINK-USDT | $23.18 0.0064062 Eth | $356,219.00 15,369.120 LINK | 0.1113% |
50 | Coinbase Exchange | LINK-GBP | $23.12 0.0063901 Eth | $349,051.00 15,100.090 LINK | 0.1093% |
51 | Coinbase Exchange | LINK-ETH | $23.14 0.0063959 Eth | $317,595.00 13,726.850 LINK | 0.0994% |
52 | Slex | LINK-ETH | $23.17 0.0063971 Eth | $305,628.00 13,117.220 LINK | 0.0950% |
53 | BitMart | LINK-BTC | $23.14 0.0063981 Eth | $263,795.00 11,397.600 LINK | 0.0825% |
54 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.16 0.0063938 Eth | $250,732.00 252,846.160 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.8304% |
55 | Bitci TR | LINK-TRY | $23.26 0.0064227 Eth | $241,774.00 10,340.100 LINK | 0.0749% |
56 | OKX | LINK-USDC | $23.10 0.0063862 Eth | $232,304.00 9,970.103 LINK | 0.0722% |
57 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.27 0.0064331 Eth | $225,215.00 9,592.501 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0694% |
58 | Coinone | LINK-KRW | $23.31 0.0064462 Eth | $154,590.00 6,630.508 LINK | 0.0480% |
59 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.19 0.0064101 Eth | $123,985.00 5,312.554 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0385% |
60 | LATOKEN | LINK-BTC | $23.16 0.0063948 Eth | $106,753.00 4,609.033 LINK | 0.0334% |
61 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.21 0.0064089 Eth | $95,489.00 4,093.801 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0296% |
62 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.19 0.0064037 Eth | $92,490.00 3,988.925 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0289% |
63 | Bitkub | LINK-THB | $23.13 0.0063934 Eth | $91,290.00 3,947.368 LINK | 0.0286% |
64 | BitMart | LINK-ETH | $23.15 0.0063989 Eth | $84,584.00 3,654.120 LINK | 0.0265% |
65 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.21 0.0064159 Eth | $79,421.00 3,411.351 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0247% |
66 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.16 0.0063938 Eth | $77,852.00 3,333.583 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0241% |
67 | Hotcoin | LINK-BTC | $23.16 0.0063948 Eth | $67,880.00 2,930.670 LINK | 0.0212% |
68 | Gemini | LINK-BTC | $23.14 0.0063969 Eth | $58,255.00 2,517.895 LINK | 0.0182% |
69 | Nonkyc.io | LINK-BTC | $23.05 0.0063726 Eth | $54,127.00 2,319.127 LINK | 0.0168% |
70 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.28 0.0064366 Eth | $48,252.00 48,372.378 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3502% |
71 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.12 0.0063911 Eth | $46,222.00 1,981.454 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0143% |
72 | Bitexen | LINK-TRY | $23.00 0.0063454 Eth | $31,861.00 1,385.265 LINK | 0.0100% |
73 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $23.24 0.0064252 Eth | $30,982.00 40.325 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0003% |
74 | CoinEx | LINK-USDC | $23.28 0.0064269 Eth | $29,173.00 1,285.757 LINK | 0.0093% |
75 | Tokpie | LINK-USDT | $23.49 0.0064629 Eth | $23,593.00 1,004.570 LINK | 0.0073% |
76 | Hotcoin | LINK-ETH | $23.15 0.0063996 Eth | $23,546.00 1,016.890 LINK | 0.0074% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.15 0.0063914 Eth | $19,329.43 828.508 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0060% |
78 | Korbit | LINK-KRW | $23.26 0.0064312 Eth | $16,708.05 717.634 LINK | 0.0052% |
79 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.27 0.0064208 Eth | $14,739.36 630.897 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0046% |
80 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $23.20 0.0064135 Eth | $14,226.59 610.500 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0044% |
81 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.16 0.0064025 Eth | $12,592.01 541.171 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0039% |
82 | Dex-Trade | LINK-ETH | $23.11 0.0063891 Eth | $12,349.58 534.420 LINK | 0.0039% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.08 0.0063719 Eth | $11,471.24 492.431 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0036% |
84 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.25 0.0064270 Eth | $11,360.16 479.600 0X5947BB275C521040051D82396192181B413227A3 | 0.0035% |
85 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.25 0.0064276 Eth | $10,545.88 450.336 0X5947BB275C521040051D82396192181B413227A3 | 0.0033% |
86 | KuCoin | LINK-KCS | $23.13 0.0063929 Eth | $9,228.89 399.070 LINK | 0.0029% |
87 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.20 0.0064146 Eth | $6,403.52 274.123 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0020% |
88 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.17 0.0063963 Eth | $5,355.43 5,402.507 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0391% |
89 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.16 0.0063951 Eth | $5,258.22 5,294.233 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0383% |
90 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.20 0.0064009 Eth | $3,242.89 138.996 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0010% |
91 | Ace | LINK-USDT | $23.13 0.0063851 Eth | $2,373.65 101.750 LINK | 0.0007% |
92 | CoinEx | LINK-BTC | $23.24 0.0064243 Eth | $2,369.64 101.465 LINK | 0.0007% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $23.20 0.0064062 Eth | $2,165.73 94.243 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0007% |
94 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $23.18 0.0063950 Eth | $1,608.49 69.057 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0005% |
95 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.27 0.0064194 Eth | $932.62 39.883 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0003% |
96 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.17 0.0063951 Eth | $603.02 1.763 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0000% |
97 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $23.25 0.0064266 Eth | $592.75 25.373 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $23.39 0.0064590 Eth | $486.35 20.612 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.23 0.0064142 Eth | $374.80 16.042 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $23.22 0.0064095 Eth | $248.87 10.666 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0001% |
Contract Name:
LinkToken
Compiler Version
v0.4.16+commit.d7661dd9
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion, Audited
Contract Source Code (Solidity)Audit Report
/** *Submitted for verification at Etherscan.io on 2017-09-23 */ pragma solidity ^0.4.16; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC677 is ERC20 { function transferAndCall(address to, uint value, bytes data) returns (bool success); event Transfer(address indexed from, address indexed to, uint value, bytes data); } contract ERC677Receiver { function onTokenTransfer(address _sender, uint _value, bytes _data); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract ERC677Token is ERC677 { /** * @dev transfer token to a contract address with additional data if the recipient is a contact. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public returns (bool success) { super.transfer(_to, _value); Transfer(msg.sender, _to, _value, _data); if (isContract(_to)) { contractFallback(_to, _value, _data); } return true; } // PRIVATE function contractFallback(address _to, uint _value, bytes _data) private { ERC677Receiver receiver = ERC677Receiver(_to); receiver.onTokenTransfer(msg.sender, _value, _data); } function isContract(address _addr) private returns (bool hasCode) { uint length; assembly { length := extcodesize(_addr) } return length > 0; } } contract LinkToken is StandardToken, ERC677Token { uint public constant totalSupply = 10**27; string public constant name = 'ChainLink Token'; uint8 public constant decimals = 18; string public constant symbol = 'LINK'; function LinkToken() public { balances[msg.sender] = totalSupply; } /** * @dev transfer token to a specified address with additional data if the recipient is a contract. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public validRecipient(_to) returns (bool success) { return super.transferAndCall(_to, _value, _data); } /** * @dev transfer token to a specified address. * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint _value) public validRecipient(_to) returns (bool success) { return super.transfer(_to, _value); } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public validRecipient(_spender) returns (bool) { return super.approve(_spender, _value); } /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public validRecipient(_to) returns (bool) { return super.transferFrom(_from, _to, _value); } // MODIFIERS modifier validRecipient(address _recipient) { require(_recipient != address(0) && _recipient != address(this)); _; } }
Contract Security Audit
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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