ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,593 ( 0.023%)
Market
Price
$23.37 @ 0.006437 ETH (-0.45%)
Onchain Market Cap
$23,370,000,000.00
Circulating Supply Market Cap
$14,731,566,646.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
2,514.61380327 LINKValue
$58,766.52 ( ~16.1865 Eth) [0.0003%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $23.33 0.0064367 Eth | $60,593,354.00 2,591,010.340 LINK | 20.1008% |
2 | Coinbase Exchange | LINK-USD | $23.39 0.0064454 Eth | $28,321,922.00 1,210,856.000 LINK | 9.3937% |
3 | Slex | LINK-USDT | $23.38 0.0064440 Eth | $24,340,117.00 1,040,307.470 LINK | 8.0706% |
4 | Bybit | LINK-USDT | $23.41 0.0064492 Eth | $17,072,302.00 729,972.101 LINK | 5.6631% |
5 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.38 0.0064417 Eth | $16,494,320.00 703,953.447 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 5.4612% |
6 | WEEX | LINK-USDT | $23.40 0.0064473 Eth | $15,955,194.00 681,916.850 LINK | 5.2903% |
7 | MEXC | LINK-USDT | $23.40 0.0064460 Eth | $15,818,280.00 676,066.830 LINK | 5.2449% |
8 | P2B | LINK-USDT | $23.39 0.0064415 Eth | $12,136,400.00 518,866.220 LINK | 4.0253% |
9 | CoinW | LINK-USDT | $23.43 0.0064542 Eth | $10,888,233.00 464,762.910 LINK | 3.6056% |
10 | OKX | LINK-USDT | $23.40 0.0064463 Eth | $10,161,783.00 434,392.833 LINK | 3.3700% |
11 | HTX | LINK-USDT | $23.41 0.0064503 Eth | $7,251,999.00 310,083.000 LINK | 2.4056% |
12 | XT.COM | LINK-USDT | $23.39 0.0064465 Eth | $6,071,636.00 259,632.400 LINK | 2.0142% |
13 | Azbit | LINK-USDT | $23.39 0.0064462 Eth | $6,043,419.00 258,422.732 LINK | 2.0048% |
14 | Coinstore | LINK-USDT | $23.39 0.0064446 Eth | $5,603,928.00 239,679.790 LINK | 1.8594% |
15 | Bithumb | LINK-KRW | $23.51 0.0064772 Eth | $4,658,113.00 198,110.950 LINK | 1.5369% |
16 | BYDFi | LINK-USDT | $23.23 0.0064142 Eth | $3,927,660.00 169,046.110 LINK | 1.3114% |
17 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.36 0.0064359 Eth | $3,486,481.00 149,246.590 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 1.1578% |
18 | LATOKEN | LINK-USDT | $23.42 0.0064535 Eth | $2,951,327.00 125,996.710 LINK | 0.9775% |
19 | Bitvavo | LINK-EUR | $23.36 0.0064363 Eth | $1,995,255.00 85,425.221 LINK | 0.6627% |
20 | Hotcoin | LINK-USDT | $23.39 0.0064464 Eth | $1,973,473.00 84,356.610 LINK | 0.6544% |
21 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.36 0.0064360 Eth | $1,946,540.00 83,291.114 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.6462% |
22 | Dex-Trade | LINK-USDT | $23.20 0.0064059 Eth | $1,933,742.00 83,335.620 LINK | 0.6465% |
23 | CoinEx | LINK-USDT | $23.37 0.0064365 Eth | $1,851,355.00 79,054.067 LINK | 0.6133% |
24 | Dcoin | LINK-USDT | $23.39 0.0064415 Eth | $1,827,011.00 78,110.000 LINK | 0.6060% |
25 | KuCoin | LINK-USDT | $23.40 0.0064463 Eth | $1,766,869.00 75,505.517 LINK | 0.5858% |
26 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.38 0.0064405 Eth | $1,135,494.00 48,623.039 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.3772% |
27 | Coinbase Exchange | LINK-EUR | $23.42 0.0064534 Eth | $1,082,814.00 46,230.830 LINK | 0.3587% |
28 | PointPay | LINK-USDT | $23.38 0.0064438 Eth | $987,547.00 42,243.004 LINK | 0.3277% |
29 | tanX | LINK-USDC | $23.40 0.0064460 Eth | $926,313.00 39,604.620 LINK | 0.3072% |
30 | Trubit | LINK-USDT | $23.37 0.0064397 Eth | $881,307.00 37,708.260 LINK | 0.2925% |
31 | EXMO | LINK-USDT | $23.41 0.0064481 Eth | $841,058.00 35,931.662 LINK | 0.2788% |
32 | Bitstamp | LINK-USD | $23.43 0.0064544 Eth | $791,362.00 33,775.599 LINK | 0.2620% |
33 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.38 0.0064417 Eth | $760,301.00 32,477.939 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.2520% |
34 | WhiteBIT | LINK-TRY | $23.45 0.0064631 Eth | $722,597.00 30,809.010 LINK | 0.2390% |
35 | Bitstamp | LINK-EUR | $23.41 0.0064494 Eth | $696,439.00 29,747.618 LINK | 0.2308% |
36 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.37 0.0064396 Eth | $667,275.00 28,506.955 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2212% |
37 | WhiteBIT | LINK-BTC | $23.36 0.0064352 Eth | $649,922.00 27,821.040 LINK | 0.2158% |
38 | Gemini | LINK-USD | $23.40 0.0064471 Eth | $645,409.00 27,577.620 LINK | 0.2139% |
39 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.36 0.0064354 Eth | $546,131.00 23,530.258 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1825% |
40 | Bitbank | LINK-JPY | $23.36 0.0064365 Eth | $545,836.00 23,363.180 LINK | 0.1812% |
41 | EarnBIT | LINK-USDT | $23.44 0.0064589 Eth | $481,499.00 20,527.082 LINK | 0.1592% |
42 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.39 0.0064431 Eth | $472,147.00 472,554.967 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.6660% |
43 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.27 0.0064118 Eth | $450,889.00 19,369.592 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1503% |
44 | Coinbase Exchange | LINK-GBP | $23.37 0.0064394 Eth | $423,086.00 18,103.040 LINK | 0.1404% |
45 | Bitbegin | LINK-USDT | $23.37 0.0064402 Eth | $406,599.00 17,376.574 LINK | 0.1348% |
46 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.38 0.0064417 Eth | $393,442.00 26,087.510 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2024% |
47 | Slex | LINK-ETH | $23.42 0.0064505 Eth | $367,878.00 15,729.350 LINK | 0.1220% |
48 | BigONE | LINK-USDT | $23.34 0.0064393 Eth | $331,386.00 14,195.360 LINK | 0.1101% |
49 | Coinbase Exchange | LINK-ETH | $23.34 0.0064307 Eth | $330,044.00 14,142.720 LINK | 0.1097% |
50 | HashKey Exchange | LINK-USD | $23.36 0.0064349 Eth | $304,907.00 13,089.915 LINK | 0.1016% |
51 | BitMart | LINK-BTC | $23.39 0.0064429 Eth | $265,727.00 11,361.600 LINK | 0.0881% |
52 | Bitci TR | LINK-TRY | $23.53 0.0064841 Eth | $242,336.00 10,332.930 LINK | 0.0802% |
53 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.37 0.0064396 Eth | $233,795.00 234,311.854 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.8178% |
54 | OKX | LINK-USDC | $23.43 0.0064536 Eth | $227,458.00 9,741.031 LINK | 0.0756% |
55 | GMO Japan | LINK-JPY | $23.20 0.0063929 Eth | $224,598.00 9,678.900 LINK | 0.0751% |
56 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.24 0.0064014 Eth | $197,635.00 8,454.384 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0656% |
57 | Coinone | LINK-KRW | $23.31 0.0064227 Eth | $173,598.00 7,445.801 LINK | 0.0578% |
58 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.34 0.0064308 Eth | $123,930.00 5,298.287 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0411% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.39 0.0064448 Eth | $119,192.00 5,107.956 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0396% |
60 | LATOKEN | LINK-BTC | $23.44 0.0064577 Eth | $116,500.00 4,969.752 LINK | 0.0386% |
61 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.39 0.0064448 Eth | $106,954.00 4,566.191 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0354% |
62 | BitMart | LINK-ETH | $23.37 0.0064386 Eth | $86,173.00 3,686.980 LINK | 0.0286% |
63 | Bitexen | LINK-TRY | $23.12 0.0063764 Eth | $79,318.00 3,431.315 LINK | 0.0266% |
64 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.39 0.0064448 Eth | $75,083.00 3,207.511 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0249% |
65 | EXMO | LINK-BTC | $23.53 0.0064817 Eth | $64,566.00 2,744.073 LINK | 0.0213% |
66 | Hotcoin | LINK-BTC | $23.41 0.0064496 Eth | $64,457.00 2,753.100 LINK | 0.0214% |
67 | KuCoin | LINK-USDC | $23.43 0.0064544 Eth | $63,218.00 2,698.197 LINK | 0.0209% |
68 | Bitso | LINK-USD | $23.41 0.0064500 Eth | $60,461.00 2,582.762 LINK | 0.0200% |
69 | Gemini | LINK-BTC | $23.36 0.0064343 Eth | $58,913.00 2,522.276 LINK | 0.0196% |
70 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.36 0.0064361 Eth | $57,295.00 57,470.350 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4459% |
71 | KuCoin | LINK-BTC | $23.42 0.0064507 Eth | $57,070.00 2,437.177 LINK | 0.0189% |
72 | Binance US | LINK-USDT | $23.38 0.0064389 Eth | $53,321.00 2,280.781 LINK | 0.0177% |
73 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.36 0.0064364 Eth | $46,423.00 1,986.022 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0154% |
74 | CoinEx | LINK-USDC | $23.30 0.0064205 Eth | $28,388.00 1,252.788 LINK | 0.0097% |
75 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $23.27 0.0064122 Eth | $22,975.00 29.996 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
76 | Hotcoin | LINK-ETH | $23.38 0.0064417 Eth | $22,383.00 957.400 LINK | 0.0074% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.38 0.0064418 Eth | $19,558.29 835.456 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0065% |
78 | Korbit | LINK-KRW | $23.24 0.0064021 Eth | $19,378.37 828.634 LINK | 0.0064% |
79 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $23.17 0.0063843 Eth | $14,466.24 618.307 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0048% |
80 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.27 0.0064136 Eth | $14,384.88 614.162 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0048% |
81 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.38 0.0064405 Eth | $13,814.65 590.839 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0046% |
82 | Dex-Trade | LINK-ETH | $23.34 0.0064342 Eth | $12,853.28 550.590 LINK | 0.0043% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.37 0.0064374 Eth | $11,517.11 492.167 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0038% |
84 | KuCoin | LINK-KCS | $23.44 0.0064563 Eth | $10,077.69 429.996 LINK | 0.0033% |
85 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.31 0.0064222 Eth | $9,675.11 411.202 0X5947BB275C521040051D82396192181B413227A3 | 0.0032% |
86 | Biswap V3 | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.35 0.0064332 Eth | $8,874.38 380.875 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0030% |
87 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.24 0.0064030 Eth | $6,647.23 284.554 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0022% |
88 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.36 0.0064350 Eth | $5,516.50 5,521.569 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0428% |
89 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.28 0.0064137 Eth | $5,474.03 5,512.142 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0428% |
90 | CoinEx | LINK-BTC | $23.30 0.0064185 Eth | $4,509.67 191.699 LINK | 0.0015% |
91 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.24 0.0064030 Eth | $3,378.22 145.087 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0011% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $23.39 0.0064441 Eth | $2,534.76 110.173 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0009% |
93 | Ace | LINK-USDT | $23.35 0.0064331 Eth | $2,411.80 103.070 LINK | 0.0008% |
94 | Uniswap V3 (Arbitrum One) | 0X0C880F6761F1AF8D9AA9C466984B80DAB9A8C9E8-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.36 0.0064360 Eth | $2,331.97 438.065 0X0C880F6761F1AF8D9AA9C466984B80DAB9A8C9E8 | 0.0034% |
95 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $23.46 0.0064632 Eth | $1,233.79 52.594 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0004% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.34 0.0064317 Eth | $1,082.34 46.136 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0004% |
97 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8 | $23.36 0.0064360 Eth | $587.79 25.100 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0002% |
98 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.36 0.0064350 Eth | $547.51 1.574 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0000% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $23.38 0.0064405 Eth | $543.32 23.218 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.39 0.0064430 Eth | $368.31 15.702 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
Contract Name:
LinkToken
Compiler Version
v0.4.16+commit.d7661dd9
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion, Audited
Contract Source Code (Solidity)Audit Report
/** *Submitted for verification at Etherscan.io on 2017-09-23 */ pragma solidity ^0.4.16; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC677 is ERC20 { function transferAndCall(address to, uint value, bytes data) returns (bool success); event Transfer(address indexed from, address indexed to, uint value, bytes data); } contract ERC677Receiver { function onTokenTransfer(address _sender, uint _value, bytes _data); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract ERC677Token is ERC677 { /** * @dev transfer token to a contract address with additional data if the recipient is a contact. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public returns (bool success) { super.transfer(_to, _value); Transfer(msg.sender, _to, _value, _data); if (isContract(_to)) { contractFallback(_to, _value, _data); } return true; } // PRIVATE function contractFallback(address _to, uint _value, bytes _data) private { ERC677Receiver receiver = ERC677Receiver(_to); receiver.onTokenTransfer(msg.sender, _value, _data); } function isContract(address _addr) private returns (bool hasCode) { uint length; assembly { length := extcodesize(_addr) } return length > 0; } } contract LinkToken is StandardToken, ERC677Token { uint public constant totalSupply = 10**27; string public constant name = 'ChainLink Token'; uint8 public constant decimals = 18; string public constant symbol = 'LINK'; function LinkToken() public { balances[msg.sender] = totalSupply; } /** * @dev transfer token to a specified address with additional data if the recipient is a contract. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public validRecipient(_to) returns (bool success) { return super.transferAndCall(_to, _value, _data); } /** * @dev transfer token to a specified address. * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint _value) public validRecipient(_to) returns (bool success) { return super.transfer(_to, _value); } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public validRecipient(_spender) returns (bool) { return super.approve(_spender, _value); } /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public validRecipient(_to) returns (bool) { return super.transferFrom(_from, _to, _value); } // MODIFIERS modifier validRecipient(address _recipient) { require(_recipient != address(0) && _recipient != address(this)); _; } }
Contract Security Audit
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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