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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
727,308 ( 0.027%)
Market
Price
$24.45 @ 0.007010 ETH (-4.65%)
Onchain Market Cap
$24,450,000,000.00
Circulating Supply Market Cap
$15,391,687,711.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.38 0.0070131 Eth | $120,527,457.00 4,853,877.960 LINK | 24.8826% |
2 | Bybit | LINK-USDT | $24.37 0.0069882 Eth | $29,121,904.00 1,173,344.396 LINK | 6.0149% |
3 | Coinbase Exchange | LINK-USD | $24.41 0.0069969 Eth | $28,890,424.00 1,183,645.700 LINK | 6.0678% |
4 | CoinW | LINK-USDT | $24.37 0.0070068 Eth | $25,636,500.00 1,051,931.940 LINK | 5.3925% |
5 | Slex | LINK-USDT | $24.32 0.0070040 Eth | $24,686,528.00 997,002.250 LINK | 5.1110% |
6 | P2B | LINK-USDT | $24.42 0.0070004 Eth | $24,667,463.00 1,010,122.440 LINK | 5.1782% |
7 | OKX | LINK-USDT | $24.40 0.0069933 Eth | $19,641,979.00 791,229.279 LINK | 4.0561% |
8 | DigiFinex | LINK-USDT | $24.42 0.0070011 Eth | $15,175,383.00 621,505.290 LINK | 3.1860% |
9 | XT.COM | LINK-USDT | $24.37 0.0070070 Eth | $12,526,852.00 504,169.230 LINK | 2.5845% |
10 | Azbit | LINK-USDT | $24.45 0.0070304 Eth | $12,029,686.00 484,365.685 LINK | 2.4830% |
11 | HTX | LINK-USDT | $24.36 0.0069838 Eth | $11,322,708.00 457,274.417 LINK | 2.3441% |
12 | Coinstore | LINK-USDT | $24.37 0.0070035 Eth | $10,782,345.00 434,631.610 LINK | 2.2281% |
13 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.44 0.0070209 Eth | $10,471,320.00 422,857.861 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.1677% |
14 | BTSE | LINK-USDT | $24.42 0.0070295 Eth | $10,410,935.00 426,411.126 LINK | 2.1859% |
15 | Bitunix | LINK-USDT | $24.42 0.0070136 Eth | $9,399,574.00 384,823.910 LINK | 1.9727% |
16 | Binance | LINK-FDUSD | $24.39 0.0070120 Eth | $8,156,126.00 328,807.440 LINK | 1.6856% |
17 | Biconomy.com | LINK-USDT | $24.38 0.0070086 Eth | $7,360,996.00 297,080.630 LINK | 1.5229% |
18 | BYDFi | LINK-USDT | $24.43 0.0070024 Eth | $7,087,892.00 290,161.210 LINK | 1.4875% |
19 | LATOKEN | LINK-USDT | $24.37 0.0069861 Eth | $5,648,174.00 231,764.536 LINK | 1.1881% |
20 | Kraken | LINK-USD | $24.42 0.0069997 Eth | $5,157,643.00 211,220.935 LINK | 1.0828% |
21 | KuCoin | LINK-USDT | $24.38 0.0069889 Eth | $4,166,173.00 170,883.425 LINK | 0.8760% |
22 | Coinbase Exchange | LINK-GBP | $24.31 0.0069900 Eth | $3,925,189.00 161,436.470 LINK | 0.8276% |
23 | Dex-Trade | LINK-USDT | $24.36 0.0070154 Eth | $3,918,937.00 160,880.070 LINK | 0.8247% |
24 | Hotcoin | LINK-USDT | $24.41 0.0070105 Eth | $3,556,418.00 145,714.530 LINK | 0.7470% |
25 | Dcoin | LINK-USDT | $24.34 0.0070084 Eth | $2,600,948.00 106,860.000 LINK | 0.5478% |
26 | Bitvavo | LINK-EUR | $24.41 0.0070112 Eth | $2,278,579.00 93,360.051 LINK | 0.4786% |
27 | EXMO | LINK-USDT | $24.47 0.0070146 Eth | $1,965,893.00 80,332.742 LINK | 0.4118% |
28 | PointPay | LINK-USDT | $24.43 0.0070151 Eth | $1,902,684.00 76,759.863 LINK | 0.3935% |
29 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.69 0.0070940 Eth | $1,632,898.00 64,983.063 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3331% |
30 | CoinEx | LINK-USDT | $24.36 0.0069965 Eth | $1,470,056.00 59,470.699 LINK | 0.3049% |
31 | WhiteBIT | LINK-BTC | $24.41 0.0069988 Eth | $1,270,102.00 52,033.800 LINK | 0.2667% |
32 | Phemex | LINK-USDT | $24.37 0.0069856 Eth | $1,240,337.00 50,898.500 LINK | 0.2609% |
33 | tanX | LINK-USDC | $24.36 0.0069987 Eth | $1,212,902.00 48,941.620 LINK | 0.2509% |
34 | Coinbase Exchange | LINK-EUR | $24.36 0.0070010 Eth | $1,198,170.00 49,178.500 LINK | 0.2521% |
35 | BitStorage | LINK-USDT | $24.40 0.0070270 Eth | $950,941.00 38,969.970 LINK | 0.1998% |
36 | Bitbank | LINK-JPY | $24.36 0.0070039 Eth | $923,082.00 37,892.181 LINK | 0.1942% |
37 | Bitstamp | LINK-USD | $24.35 0.0069802 Eth | $873,867.00 35,887.753 LINK | 0.1840% |
38 | EarnBIT | LINK-USDT | $24.38 0.0070016 Eth | $865,785.00 34,920.383 LINK | 0.1790% |
39 | Bitstamp | LINK-EUR | $24.43 0.0070040 Eth | $714,336.00 29,236.300 LINK | 0.1499% |
40 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.32 0.0069847 Eth | $695,755.00 28,210.624 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1446% |
41 | Coinbase Exchange | LINK-ETH | $24.47 0.0070134 Eth | $685,967.00 28,037.930 LINK | 0.1437% |
42 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.34 0.0069900 Eth | $683,647.00 27,542.561 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1412% |
43 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.32 0.0069717 Eth | $670,852.00 684,339.807 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.5082% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.34 0.0069927 Eth | $570,771.00 23,254.288 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1192% |
45 | Bybit | LINK-USDC | $24.39 0.0069934 Eth | $570,178.00 23,009.850 LINK | 0.1180% |
46 | BigONE | LINK-USDT | $24.27 0.0069743 Eth | $566,457.00 23,343.000 LINK | 0.1197% |
47 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.40 0.0069955 Eth | $512,566.00 20,553.188 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1054% |
48 | HashKey Exchange | LINK-USD | $24.42 0.0070005 Eth | $455,300.00 18,322.462 LINK | 0.0939% |
49 | Slex | LINK-ETH | $24.37 0.0070073 Eth | $439,671.00 17,763.010 LINK | 0.0911% |
50 | Coinbase Exchange | LINK-USDT | $24.34 0.0069946 Eth | $434,394.00 17,848.895 LINK | 0.0915% |
51 | Gemini | LINK-USD | $24.44 0.0070060 Eth | $414,143.00 16,945.288 LINK | 0.0869% |
52 | Binance | LINK-EUR | $24.38 0.0069908 Eth | $405,739.00 16,346.970 LINK | 0.0838% |
53 | GMO Japan | LINK-JPY | $24.52 0.0070429 Eth | $383,494.00 15,642.300 LINK | 0.0802% |
54 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.52 0.0070436 Eth | $383,080.00 27,442.051 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1407% |
55 | itBit | LINK-USD | $24.40 0.0069940 Eth | $379,966.00 15,572.362 LINK | 0.0798% |
56 | BitMart | LINK-BTC | $24.42 0.0069989 Eth | $343,687.00 14,075.720 LINK | 0.0722% |
57 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.30 0.0069799 Eth | $343,594.00 351,104.502 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.7999% |
58 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.53 0.0070469 Eth | $319,005.00 12,794.398 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0656% |
59 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.69 0.0070931 Eth | $302,493.00 305,850.651 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 1.5679% |
60 | KuCoin | LINK-USDC | $24.46 0.0070129 Eth | $301,923.00 12,341.582 LINK | 0.0633% |
61 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.40 0.0070080 Eth | $300,404.00 12,111.827 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0621% |
62 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.66 0.0070688 Eth | $287,983.00 11,527.654 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0591% |
63 | Coinbase Exchange | LINK-BTC | $24.38 0.0070016 Eth | $264,082.00 10,833.770 LINK | 0.0555% |
64 | Bitci TR | LINK-TRY | $24.72 0.0071083 Eth | $251,257.00 10,089.040 LINK | 0.0517% |
65 | BitMart | LINK-ETH | $24.43 0.0070019 Eth | $185,067.00 7,576.800 LINK | 0.0388% |
66 | LATOKEN | LINK-BTC | $24.37 0.0070045 Eth | $181,383.00 7,442.329 LINK | 0.0382% |
67 | Bitkub | LINK-THB | $24.31 0.0069676 Eth | $179,924.00 7,401.838 LINK | 0.0379% |
68 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.36 0.0069971 Eth | $168,279.00 6,773.749 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0347% |
69 | BitStorage | LINK-ETH | $24.42 0.0070222 Eth | $167,731.00 6,867.590 LINK | 0.0352% |
70 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.40 0.0070074 Eth | $156,105.00 6,286.388 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0322% |
71 | Binance US | LINK-USDT | $24.40 0.0069937 Eth | $140,403.00 5,754.819 LINK | 0.0295% |
72 | PointPay | LINK-BTC | $24.36 0.0069959 Eth | $129,593.00 5,205.654 LINK | 0.0267% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.34 0.0069907 Eth | $126,373.00 5,145.510 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0264% |
74 | Hotcoin | LINK-BTC | $24.33 0.0070067 Eth | $120,647.00 4,957.990 LINK | 0.0254% |
75 | Kraken | LINK-GBP | $24.40 0.0069953 Eth | $106,316.00 4,356.719 LINK | 0.0223% |
76 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.52 0.0070278 Eth | $87,882.00 3,510.466 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0180% |
77 | Bitso | LINK-USD | $24.36 0.0069830 Eth | $83,482.00 3,427.063 LINK | 0.0176% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.30 0.0069799 Eth | $81,766.00 3,293.829 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0169% |
79 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.34 0.0069908 Eth | $62,706.00 2,530.198 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0130% |
80 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.45 0.0070100 Eth | $54,557.00 2,192.285 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0112% |
81 | Bitexen | LINK-TRY | $24.28 0.0069922 Eth | $48,759.00 2,008.096 LINK | 0.0103% |
82 | Hotcoin | LINK-ETH | $24.42 0.0070009 Eth | $41,806.00 1,711.830 LINK | 0.0088% |
83 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.61 0.0070699 Eth | $37,315.00 1,490.810 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0076% |
84 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $24.36 0.0069817 Eth | $37,230.00 49.774 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0003% |
85 | Bitstamp | LINK-BTC | $24.51 0.0070262 Eth | $35,450.00 1,446.306 LINK | 0.0074% |
86 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.52 0.0070436 Eth | $31,788.00 1,288.910 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0066% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $24.60 0.0070659 Eth | $25,256.00 1,039.282 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0053% |
88 | Gemini | LINK-BTC | $24.29 0.0069628 Eth | $16,070.75 661.631 LINK | 0.0034% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $24.45 0.0070227 Eth | $15,576.14 625.656 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0032% |
90 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.64 0.0070634 Eth | $15,522.55 634.899 0X5947BB275C521040051D82396192181B413227A3 | 0.0033% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.40 0.0070102 Eth | $15,517.61 624.578 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0032% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $24.30 0.0069808 Eth | $12,387.56 499.334 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0026% |
93 | Biswap V3 | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.34 0.0069777 Eth | $10,428.57 419.771 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0022% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD93F7E271CB87C23AAA73EDC008A79646D1F9912 | $24.53 0.0070466 Eth | $10,328.40 412.577 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0021% |
95 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.66 0.0070937 Eth | $10,294.60 10,424.821 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0534% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.69 0.0070954 Eth | $9,537.07 381.143 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0020% |
97 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $24.42 0.0070141 Eth | $7,709.24 310.650 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0016% |
98 | KuCoin | LINK-KCS | $24.61 0.0070549 Eth | $6,955.93 282.641 LINK | 0.0014% |
99 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $24.35 0.0069985 Eth | $4,835.37 137.530 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0007% |
100 | Ace | LINK-USDT | $24.34 0.0069937 Eth | $4,723.21 190.200 LINK | 0.0010% |
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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