ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,352 ( 0.005%)
Market
Price
$23.68 @ 0.006505 ETH (+0.15%)
Onchain Market Cap
$23,680,000,000.00
Circulating Supply Market Cap
$14,946,865,334.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
59.71127208 LINKValue
$1,413.96 ( ~0.388429159979569 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Coinbase Exchange | LINK-USD | $23.67 0.0065097 Eth | $27,329,584.00 1,154,852.500 LINK | 10.5427% |
2 | Slex | LINK-USDT | $23.64 0.0065040 Eth | $23,357,710.00 1,001,191.970 LINK | 9.1400% |
3 | P2B | LINK-USDT | $23.67 0.0065219 Eth | $18,454,820.00 779,784.210 LINK | 7.1187% |
4 | Bybit | LINK-USDT | $23.67 0.0065111 Eth | $17,714,723.00 757,886.559 LINK | 6.9188% |
5 | MEXC | LINK-USDT | $23.66 0.0065074 Eth | $17,707,404.00 748,489.940 LINK | 6.8330% |
6 | CoinW | LINK-USDT | $23.65 0.0065054 Eth | $16,237,501.00 686,443.220 LINK | 6.2666% |
7 | OKX | LINK-USDT | $23.64 0.0065006 Eth | $12,076,195.00 516,676.524 LINK | 4.7168% |
8 | HTX | LINK-USDT | $23.67 0.0065082 Eth | $9,384,388.00 402,388.645 LINK | 3.6734% |
9 | XT.COM | LINK-USDT | $23.67 0.0065102 Eth | $8,657,428.00 370,780.780 LINK | 3.3849% |
10 | Coinstore | LINK-USDT | $23.70 0.0065198 Eth | $7,864,214.00 336,818.600 LINK | 3.0748% |
11 | Binance | LINK-FDUSD | $23.65 0.0065026 Eth | $6,921,412.00 296,619.540 LINK | 2.7079% |
12 | Biconomy.com | LINK-USDT | $23.65 0.0065074 Eth | $6,379,658.00 273,262.940 LINK | 2.4946% |
13 | Bithumb | LINK-KRW | $23.85 0.0065607 Eth | $5,975,232.00 250,496.961 LINK | 2.2868% |
14 | BYDFi | LINK-USDT | $23.68 0.0065142 Eth | $5,751,944.00 242,941.220 LINK | 2.2178% |
15 | Azbit | LINK-USDT | $23.66 0.0065189 Eth | $5,543,312.00 236,770.324 LINK | 2.1615% |
16 | Kraken | LINK-USD | $23.67 0.0065097 Eth | $5,114,813.00 216,085.513 LINK | 1.9727% |
17 | LATOKEN | LINK-USDT | $23.65 0.0065026 Eth | $4,226,294.00 178,715.075 LINK | 1.6315% |
18 | Dex-Trade | LINK-USDT | $23.63 0.0065060 Eth | $2,860,439.00 121,062.920 LINK | 1.1052% |
19 | KuCoin | LINK-USDT | $23.66 0.0065073 Eth | $2,674,027.00 113,012.018 LINK | 1.0317% |
20 | CoinEx | LINK-USDT | $23.69 0.0065181 Eth | $2,537,571.00 108,558.709 LINK | 0.9910% |
21 | Hotcoin | LINK-USDT | $23.72 0.0065263 Eth | $2,385,401.00 100,581.310 LINK | 0.9182% |
22 | Bitvavo | LINK-EUR | $23.70 0.0065202 Eth | $2,385,361.00 100,657.106 LINK | 0.9189% |
23 | Coinbase Exchange | LINK-BTC | $23.65 0.0065034 Eth | $2,101,579.00 88,880.130 LINK | 0.8114% |
24 | Dcoin | LINK-USDT | $23.67 0.0065122 Eth | $1,791,666.00 75,678.000 LINK | 0.6909% |
25 | EXMO | LINK-USDT | $23.66 0.0065084 Eth | $1,221,029.00 51,608.544 LINK | 0.4711% |
26 | PointPay | LINK-USDT | $23.65 0.0065067 Eth | $1,089,509.00 46,708.100 LINK | 0.4264% |
27 | tanX | LINK-USDC | $23.67 0.0065098 Eth | $1,083,461.00 46,365.580 LINK | 0.4233% |
28 | Phemex | LINK-USDT | $23.67 0.0065103 Eth | $1,064,564.00 44,982.030 LINK | 0.4106% |
29 | Bybit | LINK-USDC | $23.67 0.0065099 Eth | $995,673.00 42,465.292 LINK | 0.3877% |
30 | Bitbank | LINK-JPY | $23.70 0.0065193 Eth | $904,789.00 38,177.024 LINK | 0.3485% |
31 | Coinbase Exchange | LINK-EUR | $23.65 0.0065068 Eth | $852,845.00 36,054.110 LINK | 0.3291% |
32 | Trubit | LINK-USDT | $23.67 0.0065109 Eth | $823,528.00 35,316.280 LINK | 0.3224% |
33 | WhiteBIT | LINK-BTC | $23.65 0.0065065 Eth | $815,706.00 34,490.120 LINK | 0.3149% |
34 | WhiteBIT | LINK-TRY | $23.70 0.0065203 Eth | $720,080.00 30,382.410 LINK | 0.2774% |
35 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.65 0.0065054 Eth | $687,592.00 29,300.352 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2675% |
36 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.58 0.0064874 Eth | $647,610.00 42,433.556 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3874% |
37 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.60 0.0064928 Eth | $627,337.00 26,660.348 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2434% |
38 | EarnBIT | LINK-USDT | $23.59 0.0065012 Eth | $562,430.00 24,096.004 LINK | 0.2200% |
39 | Coinbase Exchange | LINK-GBP | $23.69 0.0065168 Eth | $477,792.00 20,167.950 LINK | 0.1841% |
40 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.73 0.0065262 Eth | $473,493.00 20,126.001 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1837% |
41 | itBit | LINK-USD | $23.66 0.0065081 Eth | $465,418.00 19,671.081 LINK | 0.1796% |
42 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.61 0.0064955 Eth | $428,839.00 18,424.826 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1682% |
43 | Slex | LINK-ETH | $23.65 0.0065077 Eth | $423,710.00 18,045.220 LINK | 0.1647% |
44 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.62 0.0064981 Eth | $414,877.00 410,738.386 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.7497% |
45 | Bitbegin | LINK-USDT | $23.68 0.0065137 Eth | $410,720.00 17,586.994 LINK | 0.1606% |
46 | BigONE | LINK-USDT | $23.74 0.0065279 Eth | $391,063.00 16,475.270 LINK | 0.1504% |
47 | Binance | LINK-TRY | $23.74 0.0065233 Eth | $361,690.00 15,492.030 LINK | 0.1414% |
48 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.65 0.0065052 Eth | $356,667.00 15,141.294 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1382% |
49 | Gemini | LINK-USD | $23.63 0.0064981 Eth | $320,427.00 13,562.561 LINK | 0.1238% |
50 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.58 0.0064874 Eth | $292,365.00 12,492.722 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.1140% |
51 | BitMart | LINK-BTC | $23.66 0.0065064 Eth | $287,012.00 12,129.600 LINK | 0.1107% |
52 | GMO Japan | LINK-JPY | $23.58 0.0064852 Eth | $265,150.00 11,246.700 LINK | 0.1027% |
53 | Bitci TR | LINK-TRY | $23.85 0.0065606 Eth | $241,141.00 10,348.710 LINK | 0.0945% |
54 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.73 0.0065262 Eth | $236,195.00 232,807.443 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.1253% |
55 | Coinbase Exchange | LINK-ETH | $23.67 0.0065121 Eth | $222,583.00 9,402.340 LINK | 0.0858% |
56 | LATOKEN | LINK-BTC | $23.69 0.0065187 Eth | $206,011.00 8,694.424 LINK | 0.0794% |
57 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.53 0.0064715 Eth | $202,781.00 8,679.057 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0792% |
58 | OKX | LINK-USDC | $23.66 0.0065069 Eth | $191,186.00 8,184.772 LINK | 0.0747% |
59 | Binance US | LINK-USDT | $23.67 0.0065239 Eth | $160,863.00 6,795.550 LINK | 0.0620% |
60 | CoinEx | LINK-USDC | $23.71 0.0065239 Eth | $159,716.00 6,931.764 LINK | 0.0633% |
61 | Bitexen | LINK-TRY | $23.46 0.0064531 Eth | $151,622.00 6,463.159 LINK | 0.0590% |
62 | PointPay | LINK-BTC | $23.66 0.0065069 Eth | $147,053.00 6,293.651 LINK | 0.0575% |
63 | Bitkub | LINK-THB | $23.47 0.0064597 Eth | $144,377.00 6,152.466 LINK | 0.0562% |
64 | BitStorage | LINK-ETH | $23.67 0.0065086 Eth | $140,843.00 5,950.910 LINK | 0.0543% |
65 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.75 0.0065324 Eth | $129,418.00 5,517.953 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0504% |
66 | Bitso | LINK-USD | $23.68 0.0065125 Eth | $125,129.00 5,284.541 LINK | 0.0482% |
67 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.66 0.0065062 Eth | $124,544.00 5,291.334 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0483% |
68 | BTCMarkets | LINK-AUD | $23.67 0.0065241 Eth | $119,755.00 5,058.440 LINK | 0.0462% |
69 | BitMart | LINK-ETH | $23.64 0.0065012 Eth | $97,115.00 4,108.220 LINK | 0.0375% |
70 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.69 0.0065165 Eth | $95,723.00 4,067.947 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0371% |
71 | EXMO | LINK-BTC | $23.70 0.0065194 Eth | $95,124.00 4,013.768 LINK | 0.0366% |
72 | Hotcoin | LINK-BTC | $23.69 0.0065194 Eth | $83,021.00 3,504.290 LINK | 0.0320% |
73 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.67 0.0065104 Eth | $73,887.00 72,974.831 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6662% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.73 0.0065262 Eth | $66,843.00 2,857.426 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0261% |
75 | Independent Reserve | LINK-AUD | $23.67 0.0065091 Eth | $58,801.00 2,484.392 LINK | 0.0227% |
76 | CoinEx | LINK-BTC | $23.68 0.0065159 Eth | $52,256.00 2,216.796 LINK | 0.0202% |
77 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.69 0.0065153 Eth | $44,976.00 1,917.018 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0175% |
78 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.65 0.0065036 Eth | $43,457.00 1,848.109 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0169% |
79 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.64 0.0065015 Eth | $33,445.00 1,817.256 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0166% |
80 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $23.62 0.0064967 Eth | $31,768.00 40.446 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0004% |
81 | Korbit | LINK-KRW | $23.91 0.0065757 Eth | $31,050.00 1,320.608 LINK | 0.0121% |
82 | Hotcoin | LINK-ETH | $23.67 0.0065097 Eth | $28,752.00 1,214.720 LINK | 0.0111% |
83 | Gemini | LINK-BTC | $23.56 0.0064799 Eth | $22,088.00 937.546 LINK | 0.0086% |
84 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $23.55 0.0064796 Eth | $16,868.36 722.853 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0066% |
85 | Dex-Trade | LINK-ETH | $23.64 0.0065019 Eth | $15,752.73 666.460 LINK | 0.0061% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.59 0.0064869 Eth | $14,974.73 639.134 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0058% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.73 0.0065249 Eth | $11,733.75 499.722 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0046% |
88 | Biswap V3 | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.67 0.0065119 Eth | $7,990.70 342.722 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0031% |
89 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.67 0.0065157 Eth | $7,871.16 7,753.897 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0708% |
90 | KuCoin | LINK-KCS | $23.55 0.0064761 Eth | $7,555.55 320.855 LINK | 0.0029% |
91 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.72 0.0065274 Eth | $6,294.81 6,204.784 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0566% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.61 0.0064944 Eth | $4,516.92 193.140 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0018% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $23.73 0.0065262 Eth | $3,754.99 156.886 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0014% |
94 | Ace | LINK-USDT | $23.61 0.0065031 Eth | $3,494.27 149.590 LINK | 0.0014% |
95 | Uniswap V2 (Ethereum) | 0X00B78238925C320159023C2AC9EF89DA8F16D007-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.68 0.0065146 Eth | $3,306.51 183,837.980 0X00B78238925C320159023C2AC9EF89DA8F16D007 | 1.6783% |
96 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.65 0.0065070 Eth | $2,729.47 116.032 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0011% |
97 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.73 0.0065258 Eth | $2,119.50 90.195 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0008% |
98 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $23.67 0.0065109 Eth | $1,606.64 67.811 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0006% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.68 0.0065119 Eth | $1,151.27 48.974 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0004% |
100 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $23.66 0.0065147 Eth | $1,084.70 46.510 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0004% |
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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