ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,309 ( 0.002%)
Market
Price
$10.78 @ 0.004347 ETH (-1.71%)
Onchain Market Cap
$10,780,000,000.00
Circulating Supply Market Cap
$6,759,763,974.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
64.83583326 LINKValue
$698.93 ( ~0.281860701992715 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $10.76 0.0043337 Eth | $15,366,156.00 1,402,454.560 LINK | 12.6911% |
2 | HTX | LINK-USDT | $10.75 0.0043338 Eth | $9,115,574.00 832,345.697 LINK | 7.5320% |
3 | Bitget | LINK-USDT | $10.76 0.0043367 Eth | $8,346,130.00 761,981.461 LINK | 6.8953% |
4 | Coinbase Exchange | LINK-USD | $10.76 0.0043343 Eth | $8,341,087.00 775,482.280 LINK | 7.0175% |
5 | Bybit | LINK-USDT | $10.76 0.0043349 Eth | $4,641,337.00 423,503.797 LINK | 3.8324% |
6 | Azbit | LINK-USDT | $10.76 0.0043367 Eth | $4,223,371.00 385,956.200 LINK | 3.4926% |
7 | BTSE | LINK-USDT | $10.77 0.0043373 Eth | $3,456,083.00 321,030.544 LINK | 2.9051% |
8 | Poloniex | LINK-USDT | $10.85 0.0043718 Eth | $3,419,979.00 311,999.808 LINK | 2.8233% |
9 | WEEX | LINK-USDT | $10.79 0.0043462 Eth | $3,189,589.00 291,037.660 LINK | 2.6337% |
10 | P2B | LINK-USDT | $10.79 0.0043462 Eth | $3,173,986.00 294,264.360 LINK | 2.6628% |
11 | BVOX | LINK-USDT | $10.77 0.0043391 Eth | $3,074,435.00 280,579.624 LINK | 2.5390% |
12 | Biconomy.com | LINK-USDT | $10.78 0.0043439 Eth | $3,014,105.00 275,300.050 LINK | 2.4912% |
13 | Upbit | LINK-KRW | $10.86 0.0043780 Eth | $2,875,403.00 264,658.725 LINK | 2.3949% |
14 | Ourbit | LINK-USDT | $10.76 0.0043343 Eth | $2,715,752.00 247,914.180 LINK | 2.2434% |
15 | OKX | LINK-USDT | $10.77 0.0043378 Eth | $2,702,324.00 247,196.769 LINK | 2.2369% |
16 | Slex | LINK-USDT | $10.79 0.0043462 Eth | $2,641,774.00 241,051.250 LINK | 2.1813% |
17 | Trubit | LINK-USDT | $10.77 0.0043402 Eth | $2,390,062.00 217,876.060 LINK | 1.9716% |
18 | DigiFinex | LINK-USDT | $10.76 0.0043341 Eth | $1,983,353.00 184,398.770 LINK | 1.6687% |
19 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.83 0.0043658 Eth | $1,947,557.00 178,036.758 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.6111% |
20 | AscendEX (BitMax) | LINK-USDT | $10.73 0.0043246 Eth | $1,684,891.00 156,998.000 LINK | 1.4207% |
21 | Deepcoin | LINK-USDT | $10.80 0.0043504 Eth | $1,620,344.00 145,824.920 LINK | 1.3196% |
22 | C-Patex | LINK-USDT | $10.77 0.0043377 Eth | $1,584,990.00 147,212.431 LINK | 1.3322% |
23 | CoinW | LINK-USDT | $10.77 0.0043396 Eth | $1,579,497.00 146,665.720 LINK | 1.3272% |
24 | LBank | LINK-USDT | $10.75 0.0043298 Eth | $1,541,285.00 143,440.790 LINK | 1.2980% |
25 | XT.COM | LINK-USDT | $10.75 0.0043299 Eth | $1,535,655.00 140,158.010 LINK | 1.2683% |
26 | KuCoin | LINK-USDT | $10.76 0.0043342 Eth | $1,508,679.00 140,267.952 LINK | 1.2693% |
27 | Niza Global | LINK-USD | $10.79 0.0043473 Eth | $1,317,231.00 120,011.336 LINK | 1.0860% |
28 | Kraken | LINK-USD | $10.77 0.0043387 Eth | $1,292,839.00 120,071.675 LINK | 1.0865% |
29 | Bitunix | LINK-USDT | $10.78 0.0043442 Eth | $1,292,444.00 119,824.190 LINK | 1.0843% |
30 | Toobit | LINK-USDT | $10.80 0.0043504 Eth | $1,272,237.00 116,098.360 LINK | 1.0506% |
31 | Coinstore | LINK-USDT | $10.79 0.0043458 Eth | $1,129,756.00 103,145.890 LINK | 0.9334% |
32 | HashKey Global | LINK-USDT | $10.77 0.0043392 Eth | $1,098,783.00 100,772.577 LINK | 0.9119% |
33 | Oceanex | LINK-USDT | $10.78 0.0043420 Eth | $1,098,186.00 101,911.470 LINK | 0.9222% |
34 | Crypto.com Exchange | LINK-USDT | $10.76 0.0043363 Eth | $1,000,104.00 92,937.980 LINK | 0.8410% |
35 | Bullish | LINK-USDC | $10.77 0.0043380 Eth | $857,674.00 78,299.456 LINK | 0.7085% |
36 | Azbit | LINK-ETH | $10.79 0.0043478 Eth | $774,601.00 70,860.737 LINK | 0.6412% |
37 | MEXC | LINK-USDT | $10.77 0.0043393 Eth | $753,629.00 69,985.450 LINK | 0.6333% |
38 | BYDFi | LINK-USDT | $10.79 0.0043469 Eth | $714,198.00 66,202.410 LINK | 0.5991% |
39 | Bitvavo | LINK-EUR | $10.78 0.0043455 Eth | $681,724.00 63,219.701 LINK | 0.5721% |
40 | Crypto.com Exchange | LINK-USD | $10.77 0.0043407 Eth | $659,618.00 61,234.500 LINK | 0.5541% |
41 | Gate.io | LINK-USDT | $10.78 0.0043423 Eth | $652,249.00 59,607.770 LINK | 0.5394% |
42 | Bithumb | LINK-KRW | $10.88 0.0043832 Eth | $627,247.00 57,656.669 LINK | 0.5217% |
43 | WhiteBIT | LINK-BTC | $10.78 0.0043440 Eth | $590,860.00 54,807.510 LINK | 0.4960% |
44 | CoinEx | LINK-USDT | $10.76 0.0043357 Eth | $532,900.00 48,645.615 LINK | 0.4402% |
45 | FMCPAY | LINK-BTC | $10.77 0.0043389 Eth | $482,130.00 43,930.000 LINK | 0.3975% |
46 | tanX | LINK-USDC | $10.81 0.0043557 Eth | $443,816.00 40,534.270 LINK | 0.3668% |
47 | LATOKEN | LINK-USDT | $10.77 0.0043379 Eth | $296,500.00 27,542.742 LINK | 0.2492% |
48 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.77 0.0043380 Eth | $268,194.00 24,584.461 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2225% |
49 | PointPay | LINK-USDT | $10.77 0.0043382 Eth | $252,517.00 23,041.670 LINK | 0.2085% |
50 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.79 0.0043477 Eth | $241,046.00 22,302.094 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2018% |
51 | Pionex | LINK-USDT | $10.77 0.0043405 Eth | $207,509.00 18,940.100 LINK | 0.1714% |
52 | BigONE | LINK-USDT | $10.81 0.0043539 Eth | $203,953.00 18,873.830 LINK | 0.1708% |
53 | BitMart | LINK-BTC | $10.79 0.0043458 Eth | $192,582.00 17,856.000 LINK | 0.1616% |
54 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.79 0.0043464 Eth | $190,489.00 17,594.840 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1592% |
55 | LATOKEN | LINK-BTC | $10.79 0.0043461 Eth | $184,353.00 17,091.800 LINK | 0.1547% |
56 | EXMO | LINK-USDT | $10.77 0.0043395 Eth | $170,546.00 15,836.033 LINK | 0.1433% |
57 | WhiteBIT | LINK-EUR | $10.77 0.0043398 Eth | $163,437.00 15,172.640 LINK | 0.1373% |
58 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.79 0.0043475 Eth | $160,429.00 14,733.159 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1333% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.75 0.0043298 Eth | $148,820.00 13,644.710 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1235% |
60 | BitDelta | LINK-USDT | $10.75 0.0043339 Eth | $120,850.00 11,035.000 LINK | 0.0999% |
61 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.79 0.0043459 Eth | $115,988.00 10,575.967 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0957% |
62 | WhiteBIT | LINK-TRY | $10.86 0.0043750 Eth | $105,074.00 9,675.350 LINK | 0.0876% |
63 | Coinbase Exchange | LINK-BTC | $10.75 0.0043337 Eth | $104,972.00 9,760.900 LINK | 0.0883% |
64 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $10.81 0.0043576 Eth | $103,980.00 9,542.061 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0863% |
65 | Slex | LINK-ETH | $10.77 0.0043410 Eth | $69,618.00 6,365.940 LINK | 0.0576% |
66 | Coinbase Exchange | LINK-ETH | $10.77 0.0043400 Eth | $64,754.00 6,011.100 LINK | 0.0544% |
67 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.75 0.0043304 Eth | $63,761.00 65,132.219 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5894% |
68 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.76 0.0043376 Eth | $55,849.00 56,863.718 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.5146% |
69 | Slex | LINK-BTC | $10.77 0.0043404 Eth | $53,941.00 4,922.900 LINK | 0.0445% |
70 | OKX | LINK-USDC | $10.77 0.0043388 Eth | $53,840.00 4,915.749 LINK | 0.0445% |
71 | BYDFi | LINK-USDC | $10.76 0.0043388 Eth | $51,108.00 4,747.920 LINK | 0.0430% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.75 0.0043292 Eth | $41,347.00 3,795.471 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0343% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.75 0.0043298 Eth | $38,469.00 3,494.095 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0316% |
74 | Binance US | LINK-USDT | $10.79 0.0043459 Eth | $24,597.00 2,280.390 LINK | 0.0206% |
75 | EXMO | LINK-BTC | $10.81 0.0043554 Eth | $22,714.00 2,101.342 LINK | 0.0190% |
76 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.81 0.0043559 Eth | $19,667.17 1,798.802 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0163% |
77 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.79 0.0043500 Eth | $19,067.54 19,427.962 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1758% |
78 | Nonkyc.io | LINK-BTC | $10.75 0.0043324 Eth | $18,109.26 1,650.017 LINK | 0.0149% |
79 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.77 0.0043380 Eth | $17,214.30 1,567.140 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0142% |
80 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $10.75 0.0043314 Eth | $17,134.06 1,568.766 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0142% |
81 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.77 0.0043380 Eth | $13,120.14 13,443.801 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1217% |
82 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $10.76 0.0043356 Eth | $10,728.47 16.874 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.79 0.0043484 Eth | $10,656.80 972.505 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0088% |
84 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.71 0.0043176 Eth | $9,047.58 833.183 0X5947BB275C521040051D82396192181B413227A3 | 0.0075% |
85 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $10.77 0.0043384 Eth | $7,679.70 709.269 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0064% |
86 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.80 0.0043511 Eth | $5,650.11 518.116 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0047% |
87 | CoinEx | LINK-BTC | $10.80 0.0043520 Eth | $5,331.14 488.108 LINK | 0.0044% |
88 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.72 0.0043204 Eth | $5,280.36 485.929 0X5947BB275C521040051D82396192181B413227A3 | 0.0044% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $10.76 0.0043349 Eth | $5,206.95 475.148 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0043% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $10.75 0.0043319 Eth | $3,558.61 324.420 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0029% |
91 | CoinEx | LINK-USDC | $10.83 0.0043624 Eth | $2,305.33 210.600 LINK | 0.0019% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.80 0.0043492 Eth | $1,678.60 154.487 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0014% |
93 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $10.76 0.0043350 Eth | $1,213.84 108.839 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0010% |
94 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $10.76 0.0043350 Eth | $747.32 69.031 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0006% |
95 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.79 0.0043463 Eth | $370.16 33.659 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0003% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X7130D2A12B9BCBFAE4F2634D864A1EE1CE3EAD9C | $10.80 0.0043492 Eth | $211.84 19.429 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $10.77 0.0043395 Eth | $137.30 12.527 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $10.77 0.0043407 Eth | $115.46 10.674 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
99 | CEX.IO | LINK-USD | $10.80 0.0043521 Eth | $34.47 3.150 LINK | 0.0000% |
100 | CEX.IO | LINK-USDT | $10.77 0.0043389 Eth | $18.43 1.678 LINK | 0.0000% |
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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