ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,275 ( -0.031%)
Market
Price
$11.34 @ 0.004523 ETH (-6.25%)
Onchain Market Cap
$11,340,000,000.00
Circulating Supply Market Cap
$7,104,995,823.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $11.34 0.0045207 Eth | $30,024,403.00 2,585,757.810 LINK | 14.1781% |
2 | WhiteBIT | LINK-USDT | $11.32 0.0045104 Eth | $29,851,129.00 2,637,517.260 LINK | 14.4619% |
3 | Coinbase Exchange | LINK-USD | $11.31 0.0045087 Eth | $15,260,156.00 1,349,142.940 LINK | 7.3975% |
4 | HTX | LINK-USDT | $11.32 0.0045090 Eth | $12,614,127.00 1,090,179.023 LINK | 5.9776% |
5 | Bitget | LINK-USDT | $11.30 0.0045051 Eth | $9,675,544.00 836,658.412 LINK | 4.5875% |
6 | Bybit | LINK-USDT | $11.31 0.0045100 Eth | $9,468,415.00 816,564.044 LINK | 4.4773% |
7 | BTSE | LINK-USDT | $11.34 0.0045242 Eth | $7,575,288.00 668,069.574 LINK | 3.6631% |
8 | OKX | LINK-USDT | $11.31 0.0045056 Eth | $7,263,927.00 627,065.421 LINK | 3.4383% |
9 | Upbit | LINK-KRW | $11.42 0.0045530 Eth | $6,688,119.00 585,723.532 LINK | 3.2116% |
10 | Gate.io | LINK-USDT | $11.31 0.0045094 Eth | $5,572,412.00 478,199.220 LINK | 2.6220% |
11 | Slex | LINK-USDT | $11.34 0.0045213 Eth | $5,294,733.00 457,706.760 LINK | 2.5097% |
12 | P2B | LINK-USDT | $11.33 0.0045146 Eth | $5,037,380.00 444,638.500 LINK | 2.4380% |
13 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.31 0.0045060 Eth | $4,970,689.00 433,932.520 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.3793% |
14 | Azbit | LINK-USDT | $11.33 0.0045155 Eth | $4,345,220.00 374,585.390 LINK | 2.0539% |
15 | DigiFinex | LINK-USDT | $11.31 0.0045111 Eth | $4,153,627.00 367,143.720 LINK | 2.0131% |
16 | Biconomy.com | LINK-USDT | $11.33 0.0045179 Eth | $3,864,519.00 333,665.840 LINK | 1.8295% |
17 | XT.COM | LINK-USDT | $11.34 0.0045274 Eth | $3,008,013.00 259,042.660 LINK | 1.4204% |
18 | ProBit Global | LINK-USDT | $11.34 0.0045257 Eth | $2,975,689.00 262,330.279 LINK | 1.4384% |
19 | Bitunix | LINK-USDT | $11.33 0.0045175 Eth | $2,938,936.00 259,223.730 LINK | 1.4214% |
20 | CoinW | LINK-USDT | $11.32 0.0045238 Eth | $2,910,013.00 257,120.410 LINK | 1.4098% |
21 | Trubit | LINK-USDT | $11.34 0.0045188 Eth | $2,497,089.00 215,132.660 LINK | 1.1796% |
22 | Hotcoin | LINK-USDT | $11.31 0.0045178 Eth | $2,482,590.00 219,453.810 LINK | 1.2033% |
23 | Coinstore | LINK-USDT | $11.32 0.0045136 Eth | $2,133,373.00 183,737.590 LINK | 1.0075% |
24 | KuCoin | LINK-USDT | $11.31 0.0045095 Eth | $2,104,620.00 186,097.243 LINK | 1.0204% |
25 | LBank | LINK-USDT | $11.32 0.0045123 Eth | $2,020,004.00 178,403.200 LINK | 0.9782% |
26 | AscendEX (BitMax) | LINK-USDT | $11.32 0.0045120 Eth | $1,679,639.00 148,437.800 LINK | 0.8139% |
27 | BYDFi | LINK-USDT | $11.33 0.0045241 Eth | $1,424,809.00 125,769.050 LINK | 0.6896% |
28 | WhiteBIT | LINK-BTC | $11.34 0.0045203 Eth | $1,343,353.00 118,443.380 LINK | 0.6494% |
29 | Bitvavo | LINK-EUR | $11.34 0.0045221 Eth | $1,134,389.00 100,049.143 LINK | 0.5486% |
30 | HashKey Global | LINK-USDT | $11.34 0.0045203 Eth | $1,007,469.00 83,553.547 LINK | 0.4581% |
31 | Dex-Trade | LINK-USDT | $11.32 0.0045134 Eth | $943,826.00 83,383.240 LINK | 0.4572% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.36 0.0045303 Eth | $880,945.00 76,979.013 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4221% |
33 | Azbit | LINK-ETH | $11.33 0.0045174 Eth | $818,633.00 71,545.849 LINK | 0.3923% |
34 | CoinEx | LINK-USDT | $11.30 0.0045072 Eth | $724,314.00 62,190.297 LINK | 0.3410% |
35 | BigONE | LINK-USDT | $11.28 0.0045065 Eth | $645,256.00 57,218.480 LINK | 0.3137% |
36 | EXMO | LINK-USDT | $11.31 0.0045088 Eth | $633,458.00 56,021.331 LINK | 0.3072% |
37 | LATOKEN | LINK-BTC | $11.32 0.0045098 Eth | $609,114.00 53,816.487 LINK | 0.2951% |
38 | LATOKEN | LINK-USDT | $11.33 0.0045280 Eth | $575,225.00 50,777.705 LINK | 0.2784% |
39 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.30 0.0045066 Eth | $524,910.00 46,133.779 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2530% |
40 | PointPay | LINK-USDT | $11.31 0.0045084 Eth | $501,001.00 43,151.394 LINK | 0.2366% |
41 | ProBit Global | LINK-BTC | $11.33 0.0045182 Eth | $487,768.00 43,047.942 LINK | 0.2360% |
42 | tanX | LINK-USDC | $11.33 0.0045144 Eth | $454,994.00 39,317.500 LINK | 0.2156% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.34 0.0045200 Eth | $443,226.00 38,563.387 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2114% |
44 | Gemini | LINK-USD | $11.31 0.0045090 Eth | $377,742.00 33,393.691 LINK | 0.1831% |
45 | EarnBIT | LINK-USDT | $11.34 0.0045196 Eth | $351,733.00 30,347.838 LINK | 0.1664% |
46 | Bybit | LINK-USDC | $11.35 0.0045246 Eth | $336,393.00 29,143.775 LINK | 0.1598% |
47 | WhiteBIT | LINK-EUR | $11.33 0.0045140 Eth | $314,054.00 27,728.590 LINK | 0.1520% |
48 | Phemex | LINK-USDT | $11.33 0.0045167 Eth | $303,203.00 26,757.060 LINK | 0.1467% |
49 | WhiteBIT | LINK-TRY | $11.34 0.0045267 Eth | $297,001.00 26,201.340 LINK | 0.1437% |
50 | Bitbank | LINK-JPY | $11.39 0.0045391 Eth | $241,424.00 21,200.436 LINK | 0.1162% |
51 | GMO Japan | LINK-JPY | $11.36 0.0045252 Eth | $231,591.00 20,391.800 LINK | 0.1118% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.33 0.0045127 Eth | $206,142.00 17,873.935 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0980% |
53 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.36 0.0045279 Eth | $199,404.00 17,208.466 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0944% |
54 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.30 0.0045075 Eth | $197,927.00 17,354.471 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0952% |
55 | BitMart | LINK-BTC | $11.34 0.0045182 Eth | $192,009.00 16,934.780 LINK | 0.0929% |
56 | Slex | LINK-BTC | $11.33 0.0045252 Eth | $187,610.00 16,465.300 LINK | 0.0903% |
57 | Coinbase Exchange | LINK-GBP | $11.34 0.0045189 Eth | $183,316.00 16,170.320 LINK | 0.0887% |
58 | BYDFi | LINK-USDC | $11.35 0.0045233 Eth | $183,022.00 16,126.400 LINK | 0.0884% |
59 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.34 0.0045200 Eth | $166,738.00 170,322.533 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.9339% |
60 | BitDelta | LINK-USDT | $11.31 0.0045093 Eth | $153,858.00 13,276.000 LINK | 0.0728% |
61 | OKX | LINK-USDC | $11.33 0.0045142 Eth | $136,024.00 11,716.799 LINK | 0.0642% |
62 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $11.31 0.0045060 Eth | $131,521.00 11,453.107 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0628% |
63 | PointPay | LINK-BTC | $11.31 0.0045083 Eth | $120,119.00 10,534.971 LINK | 0.0578% |
64 | Bitci TR | LINK-TRY | $11.42 0.0045518 Eth | $119,710.00 10,329.930 LINK | 0.0566% |
65 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.30 0.0045035 Eth | $119,040.00 122,435.872 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6713% |
66 | Coinbase Exchange | LINK-ETH | $11.33 0.0045173 Eth | $114,535.00 10,109.970 LINK | 0.0554% |
67 | Binance US | LINK-USDT | $11.32 0.0045195 Eth | $100,011.00 8,834.371 LINK | 0.0484% |
68 | Slex | LINK-ETH | $11.33 0.0045192 Eth | $88,117.00 7,704.070 LINK | 0.0422% |
69 | Bitso | LINK-USD | $11.32 0.0045129 Eth | $85,085.00 7,514.189 LINK | 0.0412% |
70 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.34 0.0045200 Eth | $60,815.00 5,261.432 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0288% |
71 | Bitkub | LINK-THB | $11.37 0.0045322 Eth | $51,771.00 4,551.933 LINK | 0.0250% |
72 | BitStorage | LINK-ETH | $11.34 0.0045212 Eth | $49,571.00 4,371.890 LINK | 0.0240% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.33 0.0045188 Eth | $46,578.00 4,026.962 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0221% |
74 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.30 0.0045066 Eth | $39,120.00 40,205.268 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.2205% |
75 | EXMO | LINK-BTC | $11.31 0.0045083 Eth | $33,861.00 2,993.256 LINK | 0.0164% |
76 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.37 0.0045347 Eth | $33,630.00 2,939.825 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0161% |
77 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $11.36 0.0045294 Eth | $30,181.00 2,646.841 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0145% |
78 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $11.27 0.0044945 Eth | $26,970.00 2,354.786 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0129% |
79 | Bitcointry | LINK-USDT | $11.33 0.0045167 Eth | $25,294.00 2,197.635 LINK | 0.0120% |
80 | Foxbit | LINK-BRL | $11.43 0.0045612 Eth | $21,066.00 1,811.211 LINK | 0.0099% |
81 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.36 0.0045303 Eth | $20,545.00 21,036.372 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1153% |
82 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.34 0.0045200 Eth | $16,430.81 1,426.382 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0078% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.33 0.0045197 Eth | $16,350.06 1,430.188 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0078% |
84 | PancakeSwap V3 (BSC) | 0X0E09FABB73BD3ADE0A17ECC321FD13A19E81CE82-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $11.36 0.0045279 Eth | $13,579.37 7,867.928 0X0E09FABB73BD3ADE0A17ECC321FD13A19E81CE82 | 0.0431% |
85 | CoinEx | LINK-USDC | $11.37 0.0045380 Eth | $13,504.44 1,186.061 LINK | 0.0065% |
86 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.39 0.0045431 Eth | $12,369.54 1,081.594 0X5947BB275C521040051D82396192181B413227A3 | 0.0059% |
87 | KuCoin | LINK-KCS | $11.30 0.0045044 Eth | $11,987.75 1,061.203 LINK | 0.0058% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.30 0.0045022 Eth | $10,126.87 882.972 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0048% |
89 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.34 0.0045216 Eth | $9,569.71 837.340 0X5947BB275C521040051D82396192181B413227A3 | 0.0046% |
90 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $11.31 0.0045060 Eth | $8,627.96 752.078 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0041% |
91 | CoinEx | LINK-BTC | $11.29 0.0045144 Eth | $7,138.37 630.668 LINK | 0.0035% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.34 0.0045209 Eth | $6,933.91 600.023 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0033% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.34 0.0045245 Eth | $5,301.53 458.373 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0025% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.35 0.0045251 Eth | $5,087.92 446.771 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0024% |
95 | Uniswap V3 (Ethereum) | 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $11.31 0.0045072 Eth | $3,843.19 27.152 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9 | 0.0001% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.35 0.0045269 Eth | $1,924.24 166.085 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0009% |
97 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X7F5C764CBC14F9669B88837CA1490CCA17C31607 | $11.24 0.0044794 Eth | $1,316.42 113.226 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0006% |
98 | Uniswap V3 (Optimism) | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | $11.37 0.0045318 Eth | $1,132.13 1,156.382 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 0.0063% |
99 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $11.31 0.0045177 Eth | $1,033.24 87.947 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0005% |
100 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $11.30 0.0045084 Eth | $1,030.25 88.584 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 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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