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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,625 ( 0.026%)
Market
Price
$23.33 @ 0.006420 ETH (-1.90%)
Onchain Market Cap
$23,330,000,000.00
Circulating Supply Market Cap
$14,740,174,500.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Websea | LINK-USDT | $23.28 0.0064074 Eth | $62,508,378.00 0.000 LINK | 0.0000% |
2 | Binance | LINK-USDT | $23.29 0.0064064 Eth | $60,785,278.00 2,601,123.770 LINK | 15.6980% |
3 | Coinbase Exchange | LINK-USD | $23.28 0.0064081 Eth | $26,946,029.00 1,157,574.900 LINK | 6.9861% |
4 | Slex | LINK-USDT | $23.35 0.0064237 Eth | $24,390,500.00 1,043,265.580 LINK | 6.2962% |
5 | WhiteBIT | LINK-USDT | $23.30 0.0064121 Eth | $19,931,333.00 855,298.620 LINK | 5.1618% |
6 | Bitget | LINK-USDT | $23.31 0.0064119 Eth | $19,586,012.00 838,205.726 LINK | 5.0586% |
7 | Bybit | LINK-USDT | $23.30 0.0064094 Eth | $17,248,962.00 737,979.951 LINK | 4.4538% |
8 | Ecxx | LINK-USDT | $23.29 0.0064109 Eth | $16,640,171.00 714,533.970 LINK | 4.3123% |
9 | WEEX | LINK-USDT | $23.29 0.0064078 Eth | $15,727,461.00 672,798.500 LINK | 4.0604% |
10 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.27 0.0064044 Eth | $15,694,573.00 668,784.295 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 4.0362% |
11 | MEXC | LINK-USDT | $23.28 0.0064066 Eth | $14,959,532.00 642,675.280 LINK | 3.8786% |
12 | P2B | LINK-USDT | $23.29 0.0064064 Eth | $12,125,800.00 520,736.490 LINK | 3.1427% |
13 | CoinW | LINK-USDT | $23.28 0.0064071 Eth | $10,854,547.00 466,177.440 LINK | 2.8134% |
14 | OKX | LINK-USDT | $23.30 0.0064098 Eth | $10,224,393.00 437,280.544 LINK | 2.6390% |
15 | BVOX | LINK-USDT | $23.28 0.0064065 Eth | $8,723,936.00 373,151.960 LINK | 2.2520% |
16 | Gate.io | LINK-USDT | $23.28 0.0064050 Eth | $8,523,566.00 365,588.220 LINK | 2.2064% |
17 | DigiFinex | LINK-USDT | $23.30 0.0064101 Eth | $7,897,764.00 338,969.090 LINK | 2.0457% |
18 | HTX | LINK-USDT | $23.31 0.0064125 Eth | $7,223,202.00 309,099.372 LINK | 1.8654% |
19 | Deepcoin | LINK-USDT | $23.31 0.0064120 Eth | $6,551,513.00 281,227.600 LINK | 1.6972% |
20 | XT.COM | LINK-USDT | $23.29 0.0064094 Eth | $6,074,360.00 259,914.330 LINK | 1.5686% |
21 | FameEX | LINK-USDT | $23.28 0.0064083 Eth | $6,066,938.00 259,588.143 LINK | 1.5666% |
22 | Azbit | LINK-USDT | $23.29 0.0064063 Eth | $6,056,712.00 259,178.480 LINK | 1.5642% |
23 | Coinstore | LINK-USDT | $23.29 0.0064068 Eth | $5,618,636.00 240,487.590 LINK | 1.4514% |
24 | Bithumb | LINK-KRW | $23.38 0.0064332 Eth | $4,527,994.00 193,643.683 LINK | 1.1687% |
25 | BYDFi | LINK-USDT | $23.35 0.0064178 Eth | $3,954,337.00 169,321.330 LINK | 1.0219% |
26 | LATOKEN | LINK-USDT | $23.29 0.0064091 Eth | $2,954,799.00 126,866.070 LINK | 0.7656% |
27 | Hotcoin | LINK-USDT | $23.31 0.0064118 Eth | $2,014,648.00 86,445.150 LINK | 0.5217% |
28 | Bitvavo | LINK-EUR | $23.27 0.0064092 Eth | $1,983,349.00 85,244.203 LINK | 0.5145% |
29 | Dex-Trade | LINK-USDT | $23.28 0.0064104 Eth | $1,944,794.00 83,527.240 LINK | 0.5041% |
30 | CoinEx | LINK-USDT | $23.27 0.0064018 Eth | $1,806,426.00 77,268.280 LINK | 0.4663% |
31 | Dcoin | LINK-USDT | $23.30 0.0064121 Eth | $1,799,388.00 77,237.000 LINK | 0.4661% |
32 | KuCoin | LINK-USDT | $23.31 0.0064116 Eth | $1,664,823.00 71,429.573 LINK | 0.4311% |
33 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.26 0.0064029 Eth | $1,620,398.00 69,374.818 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4187% |
34 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.29 0.0064063 Eth | $1,263,524.00 54,073.547 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.3263% |
35 | Coinbase Exchange | LINK-EUR | $23.28 0.0064066 Eth | $1,082,727.00 46,514.990 LINK | 0.2807% |
36 | tanX | LINK-USDC | $23.28 0.0064072 Eth | $966,555.00 41,351.220 LINK | 0.2496% |
37 | Trubit | LINK-USDT | $23.28 0.0064089 Eth | $882,266.00 37,782.450 LINK | 0.2280% |
38 | PointPay | LINK-USDT | $23.26 0.0064049 Eth | $879,908.00 37,766.125 LINK | 0.2279% |
39 | EXMO | LINK-USDT | $23.31 0.0064131 Eth | $845,343.00 36,269.819 LINK | 0.2189% |
40 | Bitstamp | LINK-USD | $23.31 0.0064131 Eth | $772,616.00 33,145.280 LINK | 0.2000% |
41 | WhiteBIT | LINK-TRY | $23.33 0.0064194 Eth | $710,209.00 30,441.670 LINK | 0.1837% |
42 | Bitstamp | LINK-EUR | $23.25 0.0063955 Eth | $681,764.00 29,328.176 LINK | 0.1770% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.25 0.0063980 Eth | $656,549.00 28,023.317 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1691% |
44 | WhiteBIT | LINK-BTC | $23.28 0.0064073 Eth | $646,038.00 27,745.790 LINK | 0.1674% |
45 | Gemini | LINK-USD | $23.28 0.0064036 Eth | $636,525.00 27,347.176 LINK | 0.1650% |
46 | Bitbank | LINK-JPY | $23.29 0.0064071 Eth | $533,965.00 22,928.373 LINK | 0.1384% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.30 0.0064123 Eth | $530,302.00 22,751.283 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1373% |
48 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.28 0.0064061 Eth | $476,737.00 478,855.506 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.8899% |
49 | Coinbase Exchange | LINK-GBP | $23.25 0.0063984 Eth | $422,002.00 18,153.000 LINK | 0.1096% |
50 | Bitbegin | LINK-USDT | $23.37 0.0064279 Eth | $405,874.00 17,355.079 LINK | 0.1047% |
51 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.20 0.0063857 Eth | $361,352.00 24,146.521 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1457% |
52 | BigONE | LINK-USDT | $23.39 0.0064283 Eth | $343,977.00 14,708.860 LINK | 0.0888% |
53 | Slex | LINK-ETH | $23.29 0.0064084 Eth | $338,072.00 14,445.630 LINK | 0.0872% |
54 | Coinbase Exchange | LINK-ETH | $23.36 0.0064294 Eth | $323,277.00 13,839.090 LINK | 0.0835% |
55 | HashKey Exchange | LINK-USD | $23.32 0.0064146 Eth | $289,810.00 12,455.370 LINK | 0.0752% |
56 | BitMart | LINK-BTC | $23.28 0.0064070 Eth | $264,822.00 11,374.000 LINK | 0.0686% |
57 | Bitci TR | LINK-TRY | $23.30 0.0064086 Eth | $241,864.00 10,325.260 LINK | 0.0623% |
58 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.25 0.0063979 Eth | $235,273.00 236,824.936 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.4293% |
59 | OKX | LINK-USDC | $23.30 0.0064113 Eth | $231,689.00 9,927.521 LINK | 0.0599% |
60 | BitDelta | LINK-USDT | $23.28 0.0064086 Eth | $206,766.00 8,849.000 LINK | 0.0534% |
61 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.28 0.0064061 Eth | $194,622.00 8,371.055 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0505% |
62 | Coinone | LINK-KRW | $23.39 0.0064351 Eth | $172,130.00 7,359.151 LINK | 0.0444% |
63 | Bitkub | LINK-THB | $23.23 0.0063943 Eth | $123,647.00 5,322.963 LINK | 0.0321% |
64 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.26 0.0064015 Eth | $121,366.00 5,185.098 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0313% |
65 | LATOKEN | LINK-BTC | $23.30 0.0064104 Eth | $115,351.00 4,950.607 LINK | 0.0299% |
66 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.28 0.0064056 Eth | $109,710.00 4,709.804 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0284% |
67 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.25 0.0063983 Eth | $103,350.00 4,417.825 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0267% |
68 | Bitexen | LINK-TRY | $23.16 0.0063715 Eth | $92,473.00 3,992.136 LINK | 0.0241% |
69 | BitMart | LINK-ETH | $23.28 0.0064058 Eth | $84,649.00 3,636.300 LINK | 0.0219% |
70 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.25 0.0063980 Eth | $77,830.00 3,327.151 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0201% |
71 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.34 0.0064223 Eth | $77,344.00 3,297.303 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0199% |
72 | Hotcoin | LINK-BTC | $23.30 0.0064104 Eth | $64,554.00 2,770.520 LINK | 0.0167% |
73 | Gemini | LINK-BTC | $23.17 0.0063751 Eth | $58,500.00 2,524.598 LINK | 0.0152% |
74 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.28 0.0064061 Eth | $54,187.00 54,498.702 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3289% |
75 | Binance US | LINK-USDT | $23.38 0.0064308 Eth | $52,399.00 2,241.205 LINK | 0.0135% |
76 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.29 0.0064088 Eth | $45,000.00 1,918.635 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0116% |
77 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $23.23 0.0063912 Eth | $34,263.00 44.699 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0003% |
78 | CoinEx | LINK-USDC | $23.33 0.0064222 Eth | $28,397.00 1,253.290 LINK | 0.0076% |
79 | Tokpie | LINK-USDT | $23.38 0.0064356 Eth | $24,247.00 1,037.072 LINK | 0.0063% |
80 | Hotcoin | LINK-ETH | $23.31 0.0064126 Eth | $22,086.00 947.430 LINK | 0.0057% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.28 0.0064044 Eth | $19,535.38 835.149 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0050% |
82 | PancakeSwap V1 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.34 0.0064258 Eth | $15,750.97 753.722 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0045% |
83 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $23.46 0.0064566 Eth | $14,537.78 621.661 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0038% |
84 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.35 0.0064268 Eth | $14,309.45 610.083 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0037% |
85 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.42 0.0064447 Eth | $13,853.65 583.851 0X5947BB275C521040051D82396192181B413227A3 | 0.0035% |
86 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.31 0.0064139 Eth | $12,824.94 548.332 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0033% |
87 | Dex-Trade | LINK-ETH | $23.31 0.0064144 Eth | $12,021.90 515.630 LINK | 0.0031% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.27 0.0064041 Eth | $11,640.70 495.996 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0030% |
89 | Biswap V3 | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.33 0.0064204 Eth | $8,682.42 371.782 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0022% |
90 | KuCoin | LINK-KCS | $23.33 0.0064186 Eth | $8,664.03 371.329 LINK | 0.0022% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.31 0.0064144 Eth | $6,312.21 269.596 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0016% |
92 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.32 0.0064127 Eth | $5,512.50 5,536.972 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0334% |
93 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.32 0.0064127 Eth | $5,332.99 5,344.287 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0323% |
94 | CoinEx | LINK-BTC | $23.37 0.0064306 Eth | $4,524.21 191.626 LINK | 0.0012% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $23.19 0.0063848 Eth | $2,158.89 94.001 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0006% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $23.26 0.0064027 Eth | $1,133.10 48.441 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0003% |
97 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $23.31 0.0064158 Eth | $547.93 23.464 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0001% |
98 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.32 0.0064127 Eth | $487.35 1.408 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0000% |
99 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.27 0.0064044 Eth | $245.73 10.481 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0001% |
100 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $23.44 0.0064460 Eth | $240.51 10.269 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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