ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,198 (0.00%)
Market
Price
$10.90 @ 0.004339 ETH (-2.04%)
Onchain Market Cap
$10,900,000,000.00
Circulating Supply Market Cap
$6,819,776,985.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | LINK-USDT | $10.90 0.0043362 Eth | $21,926,381.00 2,012,361.880 LINK | 13.6612% |
2 | Binance | LINK-USDT | $10.90 0.0043383 Eth | $20,959,429.00 1,910,663.820 LINK | 12.9708% |
3 | Coinbase Exchange | LINK-USD | $10.89 0.0043345 Eth | $11,713,476.00 1,075,420.150 LINK | 7.3007% |
4 | HTX | LINK-USDT | $10.88 0.0043334 Eth | $10,460,277.00 954,176.895 LINK | 6.4776% |
5 | Bitget | LINK-USDT | $10.89 0.0043374 Eth | $8,870,766.00 808,867.436 LINK | 5.4911% |
6 | Bybit | LINK-USDT | $10.89 0.0043360 Eth | $7,709,716.00 701,849.381 LINK | 4.7646% |
7 | P2B | LINK-USDT | $10.89 0.0043348 Eth | $4,274,763.00 392,530.220 LINK | 2.6648% |
8 | WEEX | LINK-USDT | $10.89 0.0043342 Eth | $4,207,244.00 383,457.240 LINK | 2.6032% |
9 | Azbit | LINK-USDT | $10.89 0.0043350 Eth | $4,095,468.00 373,351.580 LINK | 2.5346% |
10 | OKX | LINK-USDT | $10.89 0.0043360 Eth | $4,072,620.00 371,390.367 LINK | 2.5212% |
11 | BTSE | LINK-USDT | $10.90 0.0043374 Eth | $3,957,484.00 363,222.665 LINK | 2.4658% |
12 | Upbit | LINK-KRW | $10.98 0.0043716 Eth | $3,758,467.00 342,218.335 LINK | 2.3232% |
13 | Ourbit | LINK-USDT | $10.89 0.0043342 Eth | $3,610,838.00 329,284.370 LINK | 2.2354% |
14 | Slex | LINK-USDT | $10.90 0.0043386 Eth | $3,517,273.00 320,671.300 LINK | 2.1769% |
15 | Biconomy.com | LINK-USDT | $10.89 0.0043350 Eth | $3,275,247.00 298,767.170 LINK | 2.0282% |
16 | Trubit | LINK-USDT | $10.90 0.0043401 Eth | $3,190,634.00 290,602.760 LINK | 1.9728% |
17 | DigiFinex | LINK-USDT | $10.89 0.0043351 Eth | $2,794,586.00 256,688.970 LINK | 1.7426% |
18 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.93 0.0043502 Eth | $2,709,545.00 246,211.597 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.6714% |
19 | ProBit Global | LINK-USDT | $10.84 0.0043256 Eth | $2,412,743.00 222,554.480 LINK | 1.5108% |
20 | CoinW | LINK-USDT | $10.90 0.0043364 Eth | $2,200,578.00 201,973.790 LINK | 1.3711% |
21 | XT.COM | LINK-USDT | $10.90 0.0043382 Eth | $2,094,956.00 190,945.660 LINK | 1.2963% |
22 | Niza Global | LINK-USD | $10.89 0.0043354 Eth | $1,973,034.00 179,323.034 LINK | 1.2174% |
23 | Kraken | LINK-USD | $10.89 0.0043377 Eth | $1,952,747.00 179,253.352 LINK | 1.2169% |
24 | Hotcoin | LINK-USDT | $10.90 0.0043382 Eth | $1,834,531.00 168,294.160 LINK | 1.1425% |
25 | Bitunix | LINK-USDT | $10.90 0.0043366 Eth | $1,817,364.00 166,871.770 LINK | 1.1328% |
26 | LBank | LINK-USDT | $10.88 0.0043302 Eth | $1,708,347.00 157,004.100 LINK | 1.0658% |
27 | AscendEX (BitMax) | LINK-USDT | $10.84 0.0043131 Eth | $1,698,926.00 156,792.200 LINK | 1.0644% |
28 | Coinstore | LINK-USDT | $10.88 0.0043323 Eth | $1,493,294.00 136,234.820 LINK | 0.9249% |
29 | HashKey Global | LINK-USDT | $10.79 0.0043170 Eth | $1,097,622.00 101,647.500 LINK | 0.6901% |
30 | BYDFi | LINK-USDT | $10.89 0.0043352 Eth | $992,179.00 91,100.120 LINK | 0.6184% |
31 | Azbit | LINK-ETH | $10.89 0.0043322 Eth | $785,587.00 71,369.608 LINK | 0.4845% |
32 | Bitvavo | LINK-EUR | $10.90 0.0043371 Eth | $733,510.00 67,320.774 LINK | 0.4570% |
33 | Bithumb | LINK-KRW | $11.01 0.0043831 Eth | $714,365.00 64,874.315 LINK | 0.4404% |
34 | Dex-Trade | LINK-USDT | $10.89 0.0043345 Eth | $694,486.00 63,773.111 LINK | 0.4329% |
35 | CoinEx | LINK-USDT | $10.91 0.0043450 Eth | $668,849.00 60,983.400 LINK | 0.4140% |
36 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.85 0.0043202 Eth | $592,973.00 53,992.323 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3665% |
37 | AscendEX (BitMax) | LINK-BTC | $10.90 0.0043388 Eth | $543,614.00 49,871.500 LINK | 0.3386% |
38 | tanX | LINK-USDC | $10.93 0.0043494 Eth | $506,363.00 46,128.020 LINK | 0.3131% |
39 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.88 0.0043303 Eth | $434,974.00 39,667.900 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2693% |
40 | LATOKEN | LINK-USDT | $10.86 0.0043311 Eth | $397,476.00 36,584.363 LINK | 0.2484% |
41 | BigONE | LINK-USDT | $10.87 0.0043246 Eth | $394,989.00 36,353.650 LINK | 0.2468% |
42 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.89 0.0043362 Eth | $368,200.00 34,487.429 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2341% |
43 | PointPay | LINK-USDT | $10.90 0.0043392 Eth | $345,944.00 31,539.166 LINK | 0.2141% |
44 | LATOKEN | LINK-BTC | $10.90 0.0043372 Eth | $303,432.00 27,843.706 LINK | 0.1890% |
45 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.89 0.0043347 Eth | $291,209.00 26,485.883 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1798% |
46 | WhiteBIT | LINK-EUR | $10.87 0.0043308 Eth | $246,161.00 22,639.230 LINK | 0.1537% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.92 0.0043484 Eth | $237,255.00 21,600.123 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1466% |
48 | Phemex | LINK-USDT | $10.90 0.0043388 Eth | $211,337.00 19,387.430 LINK | 0.1316% |
49 | EXMO | LINK-USDT | $10.89 0.0043359 Eth | $210,283.00 19,311.454 LINK | 0.1311% |
50 | Bybit | LINK-USDC | $10.90 0.0043403 Eth | $195,584.00 17,821.495 LINK | 0.1210% |
51 | BitMart | LINK-BTC | $10.89 0.0043361 Eth | $192,434.00 17,664.180 LINK | 0.1199% |
52 | Hotcoin | LINK-BTC | $10.90 0.0043366 Eth | $185,985.00 17,067.830 LINK | 0.1159% |
53 | WhiteBIT | LINK-TRY | $10.98 0.0043703 Eth | $173,146.00 15,770.300 LINK | 0.1071% |
54 | Coinbase Exchange | LINK-ETH | $10.90 0.0043386 Eth | $165,921.00 15,219.240 LINK | 0.1033% |
55 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.90 0.0043419 Eth | $164,682.00 15,107.598 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1026% |
56 | Gemini | LINK-USD | $10.91 0.0043413 Eth | $158,796.00 14,559.772 LINK | 0.0988% |
57 | BitDelta | LINK-USDT | $10.89 0.0043352 Eth | $139,461.00 12,714.000 LINK | 0.0863% |
58 | Hotcoin | LINK-ETH | $10.89 0.0043332 Eth | $124,294.00 11,415.280 LINK | 0.0775% |
59 | Bitci TR | LINK-TRY | $11.01 0.0043840 Eth | $109,424.00 9,911.290 LINK | 0.0673% |
60 | Coinbase Exchange | LINK-BTC | $10.84 0.0043150 Eth | $109,385.00 10,091.540 LINK | 0.0685% |
61 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $10.90 0.0043400 Eth | $102,478.00 9,365.223 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0636% |
62 | BYDFi | LINK-USDC | $10.90 0.0043380 Eth | $102,046.00 9,361.530 LINK | 0.0636% |
63 | Coinbase Exchange | LINK-GBP | $10.89 0.0043377 Eth | $94,243.00 8,651.120 LINK | 0.0587% |
64 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.91 0.0043442 Eth | $88,742.00 89,143.813 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.6052% |
65 | Slex | LINK-BTC | $10.87 0.0043308 Eth | $84,330.00 7,622.700 LINK | 0.0517% |
66 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.85 0.0043192 Eth | $75,902.00 76,655.709 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.5204% |
67 | OKX | LINK-USDC | $10.93 0.0043501 Eth | $70,415.00 6,405.593 LINK | 0.0435% |
68 | Slex | LINK-ETH | $10.88 0.0043315 Eth | $62,035.00 5,635.380 LINK | 0.0383% |
69 | GMO Japan | LINK-JPY | $10.87 0.0043266 Eth | $54,575.00 5,020.200 LINK | 0.0341% |
70 | PointPay | LINK-BTC | $10.88 0.0043317 Eth | $54,280.00 4,909.105 LINK | 0.0333% |
71 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.89 0.0043357 Eth | $51,891.00 4,742.917 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0322% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.91 0.0043442 Eth | $51,026.00 4,643.872 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0315% |
73 | Bitkub | LINK-THB | $10.93 0.0043511 Eth | $47,363.00 4,334.365 LINK | 0.0294% |
74 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.85 0.0043202 Eth | $27,148.00 27,602.586 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1874% |
75 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $10.84 0.0043139 Eth | $26,640.00 2,417.446 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0164% |
76 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.90 0.0043383 Eth | $26,548.00 2,423.313 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0165% |
77 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.88 0.0043291 Eth | $25,728.00 25,970.765 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1763% |
78 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.86 0.0043253 Eth | $24,295.00 2,215.545 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0150% |
79 | Bitcointry | LINK-USDT | $10.91 0.0043423 Eth | $23,773.00 2,162.714 LINK | 0.0147% |
80 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.88 0.0043299 Eth | $19,828.29 1,888.357 0X5947BB275C521040051D82396192181B413227A3 | 0.0128% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.87 0.0043268 Eth | $19,513.37 1,820.295 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0124% |
82 | Nonkyc.io | LINK-BTC | $10.93 0.0043495 Eth | $19,094.30 1,723.826 LINK | 0.0117% |
83 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.79 0.0042945 Eth | $16,648.34 1,589.666 0X5947BB275C521040051D82396192181B413227A3 | 0.0108% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.89 0.0043349 Eth | $15,117.35 1,376.043 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0093% |
85 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $10.91 0.0043423 Eth | $14,875.23 1,356.276 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0092% |
86 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $10.87 0.0043268 Eth | $12,611.12 19.609 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
87 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $10.86 0.0043213 Eth | $9,442.52 864.407 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0059% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $10.89 0.0043370 Eth | $7,370.42 668.489 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0045% |
89 | CoinEx | LINK-BTC | $10.85 0.0043171 Eth | $7,016.55 633.574 LINK | 0.0043% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.87 0.0043250 Eth | $7,003.92 642.429 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0044% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $10.91 0.0043404 Eth | $4,708.48 429.372 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0029% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.86 0.0043215 Eth | $2,320.51 212.137 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0014% |
93 | CoinEx | LINK-USDC | $10.90 0.0043400 Eth | $2,231.88 203.843 LINK | 0.0014% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $10.86 0.0043207 Eth | $1,462.86 131.869 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0009% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $10.91 0.0043442 Eth | $874.68 80.951 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0005% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $10.89 0.0043446 Eth | $794.49 72.210 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0005% |
97 | Uniswap V3 (Optimism) | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | $10.88 0.0043306 Eth | $774.47 776.887 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 0.0053% |
98 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X7F5C764CBC14F9669B88837CA1490CCA17C31607 | $10.78 0.0042896 Eth | $766.52 70.307 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0005% |
99 | Uniswap V3 (Ethereum) | 0X5B52BFB8062CE664D74BBCD4CD6DC7DF53FD7233-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $10.93 0.0043482 Eth | $524.23 81,292.077 0X5B52BFB8062CE664D74BBCD4CD6DC7DF53FD7233 | 0.5519% |
100 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X7130D2A12B9BCBFAE4F2634D864A1EE1CE3EAD9C | $10.87 0.0043247 Eth | $288.25 26.252 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
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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