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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
721,160 ( 0.001%)
Market
Price
$10.83 @ 0.004520 ETH (-3.19%)
Onchain Market Cap
$10,830,000,000.00
Circulating Supply Market Cap
$6,786,470,447.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
121.65043711 LINKValue
$1,317.47 ( ~0.549866122317785 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | LINK-USDT | $10.83 0.0045239 Eth | $22,515,118.00 2,079,380.880 LINK | 13.0847% |
2 | Coinbase Exchange | LINK-USD | $10.84 0.0045283 Eth | $20,901,521.00 1,928,362.510 LINK | 12.1344% |
3 | Bybit | LINK-USDT | $10.83 0.0045249 Eth | $18,558,957.00 1,713,225.317 LINK | 10.7806% |
4 | HTX | LINK-USDT | $10.83 0.0045250 Eth | $14,607,539.00 1,338,727.023 LINK | 8.4241% |
5 | Bitget | LINK-USDT | $10.83 0.0045253 Eth | $9,863,857.00 909,438.856 LINK | 5.7227% |
6 | P2B | LINK-USDT | $10.82 0.0045202 Eth | $6,848,878.00 633,047.560 LINK | 3.9835% |
7 | Slex | LINK-USDT | $10.81 0.0045172 Eth | $6,454,658.00 593,354.120 LINK | 3.7337% |
8 | OKX | LINK-USDT | $10.83 0.0045240 Eth | $6,002,127.00 554,350.304 LINK | 3.4883% |
9 | Azbit | LINK-USDT | $10.82 0.0045221 Eth | $5,233,870.00 481,246.972 LINK | 3.0283% |
10 | DigiFinex | LINK-USDT | $10.83 0.0045266 Eth | $4,508,925.00 416,148.240 LINK | 2.6187% |
11 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.84 0.0045244 Eth | $4,461,164.00 417,205.106 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.6253% |
12 | Biconomy.com | LINK-USDT | $10.82 0.0045217 Eth | $4,357,146.00 400,970.850 LINK | 2.5231% |
13 | KuCoin | LINK-USDT | $10.83 0.0045259 Eth | $4,070,277.00 375,720.448 LINK | 2.3643% |
14 | XT.COM | LINK-USDT | $10.81 0.0045142 Eth | $3,264,521.00 302,000.640 LINK | 1.9004% |
15 | CoinW | LINK-USDT | $10.81 0.0045141 Eth | $2,720,356.00 251,682.870 LINK | 1.5837% |
16 | ProBit Global | LINK-USDT | $10.82 0.0045192 Eth | $2,306,545.00 213,221.154 LINK | 1.3417% |
17 | Coinstore | LINK-USDT | $10.83 0.0045262 Eth | $2,117,324.00 195,543.550 LINK | 1.2305% |
18 | Kraken | LINK-USD | $10.82 0.0045215 Eth | $1,947,859.00 179,988.651 LINK | 1.1326% |
19 | Trubit | LINK-USDT | $10.82 0.0045235 Eth | $1,762,335.00 163,222.080 LINK | 1.0271% |
20 | Bitunix | LINK-USDT | $10.82 0.0045217 Eth | $1,692,311.00 156,335.250 LINK | 0.9838% |
21 | AscendEX (BitMax) | LINK-USDT | $10.86 0.0045391 Eth | $1,681,860.00 154,799.600 LINK | 0.9741% |
22 | BYDFi | LINK-USDT | $10.82 0.0045196 Eth | $1,668,443.00 154,219.650 LINK | 0.9704% |
23 | FameEX | LINK-USDT | $10.81 0.0045175 Eth | $1,385,388.00 128,130.400 LINK | 0.8063% |
24 | BTSE | LINK-USDT | $10.81 0.0045172 Eth | $1,237,205.00 114,465.610 LINK | 0.7203% |
25 | Dex-Trade | LINK-USDT | $10.83 0.0045239 Eth | $1,153,421.00 106,516.600 LINK | 0.6703% |
26 | FMCPAY | LINK-USDT | $10.80 0.0045138 Eth | $1,018,682.00 93,837.014 LINK | 0.5905% |
27 | Azbit | LINK-ETH | $10.82 0.0045209 Eth | $892,546.00 83,202.559 LINK | 0.5236% |
28 | Bitexen | LINK-USDT | $10.80 0.0045137 Eth | $859,950.00 79,623.720 LINK | 0.5010% |
29 | Bitvavo | LINK-EUR | $10.83 0.0045234 Eth | $822,056.00 75,929.239 LINK | 0.4778% |
30 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.76 0.0044975 Eth | $813,415.00 76,339.009 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4804% |
31 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.82 0.0045217 Eth | $775,264.00 71,453.137 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.4496% |
32 | Bitexen | LINK-TRY | $10.82 0.0045228 Eth | $679,403.00 62,779.720 LINK | 0.3950% |
33 | WhiteBIT | LINK-EUR | $10.77 0.0045001 Eth | $630,686.00 58,554.590 LINK | 0.3685% |
34 | tanX | LINK-USDC | $10.81 0.0045096 Eth | $612,739.00 56,089.040 LINK | 0.3529% |
35 | FMCPAY | LINK-BTC | $10.82 0.0045205 Eth | $603,560.00 55,517.200 LINK | 0.3493% |
36 | PointPay | LINK-USDT | $10.79 0.0045039 Eth | $572,979.00 53,078.391 LINK | 0.3340% |
37 | BigONE | LINK-USDT | $10.85 0.0045312 Eth | $534,310.00 49,266.940 LINK | 0.3100% |
38 | FMCPAY | LINK-ETH | $10.81 0.0045169 Eth | $504,385.00 47,048.960 LINK | 0.2961% |
39 | LATOKEN | LINK-USDT | $10.83 0.0045238 Eth | $487,934.00 45,062.685 LINK | 0.2836% |
40 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.83 0.0045233 Eth | $475,632.00 44,380.714 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2793% |
41 | EXMO | LINK-USDT | $10.82 0.0045210 Eth | $445,104.00 41,132.869 LINK | 0.2588% |
42 | ProBit Global | LINK-BTC | $10.82 0.0045188 Eth | $409,276.00 37,837.870 LINK | 0.2381% |
43 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.82 0.0045208 Eth | $404,892.00 37,768.879 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2377% |
44 | CoinEx | LINK-USDT | $10.82 0.0045173 Eth | $399,177.00 36,542.242 LINK | 0.2299% |
45 | Bybit | LINK-USDC | $10.81 0.0045151 Eth | $397,410.00 36,806.650 LINK | 0.2316% |
46 | Phemex | LINK-USDT | $10.81 0.0045098 Eth | $377,344.00 34,905.970 LINK | 0.2196% |
47 | EarnBIT | LINK-USDT | $10.80 0.0045128 Eth | $285,238.00 26,376.102 LINK | 0.1660% |
48 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.76 0.0044959 Eth | $261,831.00 24,534.211 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1544% |
49 | Coinbase Exchange | LINK-EUR | $10.81 0.0045191 Eth | $222,378.00 20,564.620 LINK | 0.1294% |
50 | LATOKEN | LINK-BTC | $10.83 0.0045263 Eth | $214,100.00 19,762.293 LINK | 0.1244% |
51 | OKX | LINK-USDC | $10.85 0.0045352 Eth | $199,647.00 18,440.677 LINK | 0.1160% |
52 | BitDelta | LINK-USDT | $10.82 0.0045214 Eth | $172,350.00 15,882.000 LINK | 0.0999% |
53 | BitMart | LINK-BTC | $10.83 0.0045249 Eth | $168,723.00 15,578.300 LINK | 0.0980% |
54 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.78 0.0045041 Eth | $161,818.00 14,896.792 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0937% |
55 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $10.82 0.0045212 Eth | $157,886.00 14,562.630 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0916% |
56 | Bitbank | LINK-JPY | $10.89 0.0045471 Eth | $148,190.00 13,610.872 LINK | 0.0856% |
57 | BYDFi | LINK-USDC | $10.81 0.0045153 Eth | $144,328.00 13,346.100 LINK | 0.0840% |
58 | Coinbase Exchange | LINK-GBP | $10.83 0.0045279 Eth | $141,487.00 13,058.800 LINK | 0.0822% |
59 | Binance | LINK-TRY | $10.87 0.0045382 Eth | $109,710.00 10,101.210 LINK | 0.0636% |
60 | Bitci TR | LINK-TRY | $10.92 0.0045619 Eth | $108,723.00 9,969.280 LINK | 0.0627% |
61 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.85 0.0045342 Eth | $104,085.00 103,929.340 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.6540% |
62 | Slex | LINK-BTC | $10.81 0.0045179 Eth | $100,733.00 9,308.900 LINK | 0.0586% |
63 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.76 0.0044975 Eth | $100,126.00 100,664.288 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6334% |
64 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.85 0.0045342 Eth | $96,764.00 8,930.768 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0562% |
65 | WhiteBIT | LINK-TRY | $10.86 0.0045388 Eth | $82,336.00 7,579.320 LINK | 0.0477% |
66 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.82 0.0045200 Eth | $80,365.00 7,528.176 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0474% |
67 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.79 0.0045068 Eth | $77,437.00 7,336.175 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0462% |
68 | GMO Japan | LINK-JPY | $10.88 0.0045459 Eth | $72,123.00 6,630.300 LINK | 0.0417% |
69 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.81 0.0045177 Eth | $71,716.00 6,604.870 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0416% |
70 | Coinbase Exchange | LINK-ETH | $10.82 0.0045202 Eth | $70,671.00 6,531.460 LINK | 0.0411% |
71 | PointPay | LINK-BTC | $10.82 0.0045177 Eth | $68,551.00 6,330.975 LINK | 0.0398% |
72 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.76 0.0044975 Eth | $60,551.00 5,628.207 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0354% |
73 | Bitget | LINK-EUR | $10.83 0.0045243 Eth | $58,845.00 5,418.300 LINK | 0.0341% |
74 | Slex | LINK-ETH | $10.82 0.0045233 Eth | $55,042.00 5,144.130 LINK | 0.0324% |
75 | LATOKEN | LINK-ETH | $10.80 0.0045115 Eth | $52,307.00 4,843.925 LINK | 0.0305% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.83 0.0045229 Eth | $50,480.00 4,670.201 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0294% |
77 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.82 0.0045240 Eth | $42,277.00 42,280.552 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.2661% |
78 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $10.78 0.0045071 Eth | $41,846.00 3,941.642 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0248% |
79 | EXMO | LINK-BTC | $10.82 0.0045213 Eth | $37,929.00 3,504.931 LINK | 0.0221% |
80 | Foxbit | LINK-BRL | $10.92 0.0045625 Eth | $34,733.00 3,210.751 LINK | 0.0202% |
81 | Mercado Bitcoin | LINK-BRL | $10.91 0.0045606 Eth | $34,632.00 3,173.622 LINK | 0.0200% |
82 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $10.77 0.0044990 Eth | $32,171.00 2,985.576 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0188% |
83 | KuCoin | LINK-BTC | $10.82 0.0045204 Eth | $28,902.00 2,671.183 LINK | 0.0168% |
84 | Bitso | LINK-USD | $10.84 0.0045256 Eth | $27,994.00 2,583.399 LINK | 0.0163% |
85 | Uniswap V3 (Ethereum) | 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $10.82 0.0045210 Eth | $25,954.00 139,194.915 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23 | 0.8759% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $10.82 0.0045189 Eth | $21,288.00 1,958.741 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0123% |
87 | Binance US | LINK-USDT | $10.82 0.0045213 Eth | $18,189.08 1,681.248 LINK | 0.0106% |
88 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.76 0.0044975 Eth | $13,041.97 13,141.822 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0827% |
89 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.81 0.0045193 Eth | $11,442.30 1,084.790 0X5947BB275C521040051D82396192181B413227A3 | 0.0068% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.78 0.0045036 Eth | $8,114.27 748.039 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0047% |
91 | CoinEx | LINK-BTC | $10.76 0.0044944 Eth | $7,807.90 725.091 LINK | 0.0046% |
92 | Ramses V2 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.76 0.0044947 Eth | $5,721.35 535.264 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0034% |
93 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $10.81 0.0045168 Eth | $4,909.36 458.093 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0029% |
94 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.81 0.0045134 Eth | $4,098.92 379.573 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0024% |
95 | CoinEx | LINK-USDC | $10.87 0.0045380 Eth | $3,267.16 302.421 LINK | 0.0019% |
96 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.76 0.0044949 Eth | $3,110.63 291.802 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0018% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $10.84 0.0045303 Eth | $2,824.11 260.531 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0016% |
98 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.81 0.0045157 Eth | $1,720.28 158.192 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0010% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $10.79 0.0045053 Eth | $1,417.35 131.057 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0008% |
100 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFF970A61A04B1CA14834A43F5DE4533EBDDB5CC8 | $10.76 0.0044975 Eth | $790.84 73.032 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0005% |
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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