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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
730,365 (0.00%)
Market
Price
$25.10 @ 0.007551 ETH (+0.58%)
Onchain Market Cap
$25,100,000,000.00
Circulating Supply Market Cap
$16,001,283,882.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $25.13 0.0075556 Eth | $68,455,928.00 2,735,621.810 LINK | 22.2805% |
2 | Coinbase Exchange | LINK-USD | $25.06 0.0075480 Eth | $32,747,922.00 1,306,989.210 LINK | 10.6449% |
3 | Slex | LINK-USDT | $25.05 0.0075446 Eth | $25,426,197.00 1,016,042.420 LINK | 8.2752% |
4 | Bybit | LINK-USDT | $25.08 0.0075550 Eth | $21,247,830.00 849,074.308 LINK | 6.9153% |
5 | P2B | LINK-USDT | $25.02 0.0075371 Eth | $14,326,339.00 572,634.280 LINK | 4.6639% |
6 | HTX | LINK-USDT | $25.08 0.0075499 Eth | $13,518,279.00 540,037.062 LINK | 4.3984% |
7 | OKX | LINK-USDT | $25.10 0.0075586 Eth | $11,390,531.00 455,322.363 LINK | 3.7084% |
8 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $25.19 0.0075872 Eth | $8,014,252.00 318,109.659 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.5909% |
9 | Binance | LINK-FDUSD | $25.05 0.0075447 Eth | $6,961,216.00 278,397.990 LINK | 2.2674% |
10 | XT.COM | LINK-USDT | $25.02 0.0075371 Eth | $6,808,028.00 271,980.050 LINK | 2.2152% |
11 | Azbit | LINK-USDT | $25.06 0.0075445 Eth | $6,792,174.00 271,308.948 LINK | 2.2097% |
12 | KuCoin | LINK-USDT | $25.02 0.0075376 Eth | $6,677,769.00 266,850.625 LINK | 2.1734% |
13 | Coinstore | LINK-USDT | $25.07 0.0075489 Eth | $6,067,881.00 242,575.800 LINK | 1.9757% |
14 | Bitunix | LINK-USDT | $25.07 0.0075473 Eth | $5,458,409.00 217,712.650 LINK | 1.7732% |
15 | WhiteBIT | LINK-USDT | $25.01 0.0075322 Eth | $5,067,411.00 202,627.630 LINK | 1.6503% |
16 | CoinW | LINK-USDT | $25.06 0.0075448 Eth | $4,249,359.00 169,591.300 LINK | 1.3812% |
17 | BYDFi | LINK-USDT | $25.10 0.0075572 Eth | $3,868,578.00 154,151.720 LINK | 1.2555% |
18 | BTSE | LINK-USDT | $25.03 0.0075388 Eth | $3,792,447.00 151,543.694 LINK | 1.2343% |
19 | LATOKEN | LINK-USDT | $25.04 0.0075397 Eth | $3,177,509.00 126,916.237 LINK | 1.0337% |
20 | Kraken | LINK-USD | $25.03 0.0075369 Eth | $2,999,098.00 119,811.042 LINK | 0.9758% |
21 | FMCPAY | LINK-USDT | $25.11 0.0075602 Eth | $2,981,642.00 119,185.834 LINK | 0.9707% |
22 | Coinbase Exchange | LINK-EUR | $25.09 0.0075585 Eth | $2,841,907.00 113,266.340 LINK | 0.9225% |
23 | QMall | LINK-USDT | $25.04 0.0075435 Eth | $2,619,024.00 104,617.454 LINK | 0.8521% |
24 | Hotcoin | LINK-USDT | $25.03 0.0075386 Eth | $2,406,428.00 96,150.010 LINK | 0.7831% |
25 | Dex-Trade | LINK-USDT | $25.08 0.0075536 Eth | $2,203,791.00 87,878.970 LINK | 0.7157% |
26 | Bitvavo | LINK-EUR | $25.11 0.0075652 Eth | $1,984,115.00 79,012.260 LINK | 0.6435% |
27 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $25.10 0.0075600 Eth | $1,574,168.00 62,968.873 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.5129% |
28 | FMCPAY | LINK-ETH | $25.05 0.0075432 Eth | $1,562,520.00 62,305.600 LINK | 0.5075% |
29 | FMCPAY | LINK-BTC | $25.06 0.0075537 Eth | $1,329,684.00 53,176.700 LINK | 0.4331% |
30 | Coinbase Exchange | LINK-GBP | $25.07 0.0075523 Eth | $1,289,504.00 51,438.420 LINK | 0.4189% |
31 | WhiteBIT | LINK-BTC | $25.10 0.0075587 Eth | $1,242,794.00 49,520.980 LINK | 0.4033% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $25.01 0.0075353 Eth | $1,235,670.00 49,440.648 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4027% |
33 | WhiteBIT | LINK-TRY | $25.12 0.0075649 Eth | $1,020,556.00 40,623.840 LINK | 0.3309% |
34 | CoinEx | LINK-USDT | $25.01 0.0075332 Eth | $979,556.00 39,171.242 LINK | 0.3190% |
35 | tanX | LINK-USDC | $25.07 0.0075510 Eth | $906,891.00 36,238.320 LINK | 0.2951% |
36 | PointPay | LINK-USDT | $25.07 0.0075488 Eth | $819,222.00 32,696.134 LINK | 0.2663% |
37 | Phemex | LINK-USDT | $25.06 0.0075535 Eth | $756,860.00 30,206.880 LINK | 0.2460% |
38 | EXMO | LINK-USDT | $25.10 0.0075626 Eth | $755,497.00 30,094.484 LINK | 0.2451% |
39 | Trubit | LINK-USDT | $25.05 0.0075472 Eth | $728,978.00 29,142.270 LINK | 0.2374% |
40 | OKX | LINK-USDC | $25.01 0.0075335 Eth | $691,663.00 27,566.998 LINK | 0.2245% |
41 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $25.06 0.0075498 Eth | $604,893.00 24,160.034 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1968% |
42 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.06 0.0075497 Eth | $583,901.00 23,259.604 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1894% |
43 | Binance | LINK-TRY | $25.22 0.0075837 Eth | $532,250.00 21,150.430 LINK | 0.1723% |
44 | Bitbank | LINK-JPY | $25.11 0.0075656 Eth | $503,937.00 20,065.707 LINK | 0.1634% |
45 | Gemini | LINK-USD | $25.05 0.0075442 Eth | $487,153.00 19,448.579 LINK | 0.1584% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.06 0.0075485 Eth | $424,113.00 16,827.274 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1371% |
47 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.97 0.0075227 Eth | $407,102.00 16,276.576 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1326% |
48 | WhiteBIT | LINK-EUR | $25.08 0.0075528 Eth | $405,087.00 16,150.440 LINK | 0.1315% |
49 | BigONE | LINK-USDT | $25.09 0.0075590 Eth | $363,839.00 14,500.650 LINK | 0.1181% |
50 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.04 0.0075423 Eth | $356,682.00 14,199.660 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1157% |
51 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $25.19 0.0075893 Eth | $347,929.00 28,392.356 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2312% |
52 | Coinbase Exchange | LINK-USDT | $25.07 0.0075518 Eth | $334,130.00 13,329.164 LINK | 0.1086% |
53 | BitMart | LINK-BTC | $25.05 0.0075455 Eth | $297,766.00 11,886.480 LINK | 0.0968% |
54 | QMall | LINK-USDC | $25.03 0.0075395 Eth | $283,630.00 11,331.974 LINK | 0.0923% |
55 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.06 0.0075497 Eth | $269,406.00 269,975.523 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.1988% |
56 | LATOKEN | LINK-BTC | $25.08 0.0075555 Eth | $252,204.00 10,054.693 LINK | 0.0819% |
57 | Coinbase Exchange | LINK-BTC | $25.04 0.0075429 Eth | $247,038.00 9,864.920 LINK | 0.0803% |
58 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.07 0.0075540 Eth | $240,035.00 9,567.301 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0779% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $25.03 0.0075401 Eth | $209,512.00 8,341.700 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0679% |
60 | Slex | LINK-ETH | $25.05 0.0075333 Eth | $204,185.00 8,160.760 LINK | 0.0665% |
61 | BitStorage | LINK-ETH | $25.07 0.0075485 Eth | $190,138.00 7,584.830 LINK | 0.0618% |
62 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $25.08 0.0075544 Eth | $172,901.00 6,905.790 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0562% |
63 | GMO Japan | LINK-JPY | $25.06 0.0075508 Eth | $170,744.00 6,812.100 LINK | 0.0555% |
64 | bitcastle | LINK-USDT | $25.05 0.0075421 Eth | $158,189.00 6,322.370 LINK | 0.0515% |
65 | Bitkub | LINK-THB | $25.30 0.0076221 Eth | $101,782.00 4,022.772 LINK | 0.0328% |
66 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.03 0.0075383 Eth | $101,730.00 101,934.447 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.8302% |
67 | BitMart | LINK-ETH | $25.05 0.0075458 Eth | $95,263.00 3,802.620 LINK | 0.0310% |
68 | Hotcoin | LINK-BTC | $25.07 0.0075489 Eth | $85,300.00 3,402.250 LINK | 0.0277% |
69 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $25.07 0.0075523 Eth | $82,425.00 3,289.187 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0268% |
70 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $25.01 0.0075353 Eth | $77,119.00 77,276.599 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6294% |
71 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $25.08 0.0075564 Eth | $63,340.00 2,525.389 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0206% |
72 | Kraken | LINK-USDC | $25.19 0.0075878 Eth | $51,992.00 2,063.890 LINK | 0.0168% |
73 | Nonkyc.io | LINK-BTC | $25.14 0.0075696 Eth | $47,343.00 1,892.861 LINK | 0.0154% |
74 | Bitso | LINK-USD | $25.07 0.0075489 Eth | $47,048.00 1,876.727 LINK | 0.0153% |
75 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $25.09 0.0075596 Eth | $46,143.00 1,848.188 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0151% |
76 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $25.16 0.0075783 Eth | $41,734.00 1,663.891 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0136% |
77 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.81 0.0074738 Eth | $31,489.00 1,234.626 0X5947BB275C521040051D82396192181B413227A3 | 0.0101% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.04 0.0075428 Eth | $30,575.00 1,212.737 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0099% |
79 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $25.16 0.0075796 Eth | $25,929.00 1,034.343 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0084% |
80 | Dex-Trade | LINK-ETH | $25.07 0.0075531 Eth | $25,776.00 1,028.060 LINK | 0.0084% |
81 | Hotcoin | LINK-ETH | $25.05 0.0075454 Eth | $25,043.00 999.870 LINK | 0.0081% |
82 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $25.16 0.0075809 Eth | $24,746.00 32.869 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0003% |
83 | OKX | LINK-EUR | $25.02 0.0075370 Eth | $22,097.00 882.109 LINK | 0.0072% |
84 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $25.11 0.0075652 Eth | $21,536.00 841.548 0X5947BB275C521040051D82396192181B413227A3 | 0.0069% |
85 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $25.06 0.0075497 Eth | $21,441.00 852.623 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0069% |
86 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $25.20 0.0075908 Eth | $15,849.20 629.102 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0051% |
87 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $25.12 0.0075665 Eth | $14,605.61 575.059 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0047% |
88 | zondacrypto | LINK-USDC | $25.02 0.0075208 Eth | $12,109.50 484.034 LINK | 0.0039% |
89 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $25.19 0.0075893 Eth | $11,923.84 474.943 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0039% |
90 | Gemini | LINK-BTC | $24.96 0.0075168 Eth | $10,100.80 404.723 LINK | 0.0033% |
91 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $25.13 0.0075721 Eth | $9,021.68 26.966 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0002% |
92 | Bitexen | LINK-TRY | $24.94 0.0075033 Eth | $6,716.26 269.317 LINK | 0.0022% |
93 | CoinEx | LINK-USDC | $25.15 0.0075755 Eth | $5,683.36 225.900 LINK | 0.0018% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $25.05 0.0075460 Eth | $4,311.31 174.803 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0014% |
95 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $25.01 0.0075351 Eth | $4,121.58 4,123.952 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0336% |
96 | Ace | LINK-USDT | $25.09 0.0075557 Eth | $2,795.68 111.590 LINK | 0.0009% |
97 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $25.16 0.0075802 Eth | $2,461.42 98.213 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0008% |
98 | Lydia Finance | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $25.12 0.0075631 Eth | $2,423.10 94.571 0X5947BB275C521040051D82396192181B413227A3 | 0.0008% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $25.13 0.0075697 Eth | $1,934.96 76.536 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0006% |
100 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $25.02 0.0075344 Eth | $1,599.82 64.678 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0005% |
Contract Source Code Verified (Exact Match)
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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