ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,514 ( -0.008%)
Market
Price
$19.76 @ 0.006965 ETH (-0.28%)
Onchain Market Cap
$19,760,000,000.00
Circulating Supply Market Cap
$12,622,958,164.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
1.660908360548335639 LINKValue
$32.82 ( ~0.0115677482157012 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Coinbase Exchange | LINK-USD | $19.81 0.0069902 Eth | $50,545,893.00 2,551,019.130 LINK | 16.0690% |
2 | Bybit | LINK-USDT | $19.82 0.0069928 Eth | $36,694,361.00 1,879,953.211 LINK | 11.8419% |
3 | Slex | LINK-USDT | $19.76 0.0069816 Eth | $18,556,473.00 950,616.220 LINK | 5.9880% |
4 | HTX | LINK-USDT | $19.81 0.0069868 Eth | $16,561,036.00 847,537.727 LINK | 5.3387% |
5 | DigiFinex | LINK-USDT | $19.80 0.0069831 Eth | $11,840,317.00 598,120.880 LINK | 3.7676% |
6 | Gate.io | LINK-USDT | $19.80 0.0069844 Eth | $11,208,744.00 574,760.120 LINK | 3.6205% |
7 | OKX | LINK-USDT | $19.82 0.0069904 Eth | $10,632,432.00 544,175.219 LINK | 3.4278% |
8 | XT.COM | LINK-USDT | $19.80 0.0069856 Eth | $9,551,013.00 488,429.760 LINK | 3.0766% |
9 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.81 0.0069887 Eth | $9,470,978.00 475,616.370 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.9959% |
10 | MEXC | LINK-USDT | $19.80 0.0069848 Eth | $8,596,938.00 434,095.540 LINK | 2.7344% |
11 | Coinstore | LINK-USDT | $19.73 0.0069569 Eth | $8,395,100.00 429,232.870 LINK | 2.7038% |
12 | KuCoin | LINK-USDT | $19.81 0.0069876 Eth | $8,031,090.00 405,361.786 LINK | 2.5534% |
13 | Azbit | LINK-USDT | $19.74 0.0069734 Eth | $7,902,018.00 403,033.487 LINK | 2.5387% |
14 | Bitunix | LINK-USDT | $19.75 0.0069779 Eth | $7,146,555.00 361,868.730 LINK | 2.2794% |
15 | CoinW | LINK-USDT | $19.76 0.0069749 Eth | $6,844,066.00 346,273.290 LINK | 2.1812% |
16 | BTSE | LINK-USDT | $19.76 0.0069723 Eth | $6,574,196.00 332,687.272 LINK | 2.0956% |
17 | Binance | LINK-FDUSD | $19.74 0.0069641 Eth | $6,516,100.00 333,482.050 LINK | 2.1006% |
18 | Hotcoin | LINK-USDT | $19.80 0.0069855 Eth | $5,735,703.00 289,643.960 LINK | 1.8245% |
19 | BYDFi | LINK-USDT | $19.75 0.0069769 Eth | $5,537,459.00 280,391.480 LINK | 1.7662% |
20 | Kraken | LINK-USD | $19.76 0.0069705 Eth | $5,315,055.00 268,978.352 LINK | 1.6943% |
21 | LATOKEN | LINK-USDT | $19.76 0.0069804 Eth | $4,752,883.00 240,542.345 LINK | 1.5152% |
22 | QMall | LINK-USDT | $19.72 0.0069708 Eth | $3,749,216.00 191,739.746 LINK | 1.2078% |
23 | Dex-Trade | LINK-USDT | $19.77 0.0069840 Eth | $3,198,463.00 161,792.000 LINK | 1.0191% |
24 | Coinbase Exchange | LINK-EUR | $19.74 0.0069757 Eth | $2,813,892.00 142,513.810 LINK | 0.8977% |
25 | Bitvavo | LINK-EUR | $19.74 0.0069762 Eth | $2,446,348.00 123,924.541 LINK | 0.7806% |
26 | FMCPAY | LINK-USDT | $19.78 0.0069740 Eth | $2,252,664.00 115,555.512 LINK | 0.7279% |
27 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.80 0.0069819 Eth | $1,703,507.00 85,495.684 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.5385% |
28 | Coinbase Exchange | LINK-GBP | $19.78 0.0069759 Eth | $1,637,684.00 82,813.750 LINK | 0.5216% |
29 | Biconomy.com | LINK-USDT | $19.80 0.0069816 Eth | $1,587,526.00 81,299.450 LINK | 0.5121% |
30 | PointPay | LINK-USDT | $19.75 0.0069781 Eth | $1,413,198.00 72,326.112 LINK | 0.4556% |
31 | FMCPAY | LINK-ETH | $19.73 0.0069735 Eth | $1,336,597.00 67,335.840 LINK | 0.4242% |
32 | CoinEx | LINK-USDT | $19.76 0.0069815 Eth | $1,335,107.00 68,524.457 LINK | 0.4316% |
33 | FMCPAY | LINK-BTC | $19.73 0.0069723 Eth | $1,162,562.00 59,455.300 LINK | 0.3745% |
34 | Phemex | LINK-USDT | $19.77 0.0069759 Eth | $1,108,454.00 56,064.340 LINK | 0.3532% |
35 | EXMO | LINK-USDT | $19.77 0.0069752 Eth | $1,100,114.00 55,635.912 LINK | 0.3505% |
36 | WhiteBIT | LINK-TRY | $19.87 0.0070080 Eth | $921,189.00 46,369.200 LINK | 0.2921% |
37 | Trubit | LINK-USDT | $19.76 0.0069813 Eth | $818,796.00 41,998.800 LINK | 0.2646% |
38 | Binance | LINK-ETH | $19.69 0.0069628 Eth | $813,517.00 40,817.050 LINK | 0.2571% |
39 | Gemini | LINK-USD | $19.76 0.0069712 Eth | $812,662.00 41,122.440 LINK | 0.2590% |
40 | Bitbank | LINK-JPY | $19.87 0.0070183 Eth | $806,811.00 40,612.680 LINK | 0.2558% |
41 | BitStorage | LINK-USDT | $19.80 0.0069885 Eth | $803,040.00 40,553.230 LINK | 0.2554% |
42 | Coinbase Exchange | LINK-ETH | $19.76 0.0069786 Eth | $744,010.00 37,648.260 LINK | 0.2371% |
43 | BigONE | LINK-USDT | $19.75 0.0069655 Eth | $706,902.00 35,793.160 LINK | 0.2255% |
44 | QMall | LINK-USDC | $19.80 0.0069850 Eth | $659,312.00 33,778.209 LINK | 0.2128% |
45 | Binance | LINK-TRY | $19.79 0.0069805 Eth | $642,328.00 32,798.630 LINK | 0.2066% |
46 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.71 0.0069501 Eth | $573,961.00 29,074.996 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1831% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.78 0.0069781 Eth | $551,466.00 27,753.184 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1748% |
48 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.74 0.0069641 Eth | $530,726.00 27,220.390 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1715% |
49 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.68 0.0069445 Eth | $468,727.00 464,739.673 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.9274% |
50 | EarnBIT | LINK-USDT | $19.78 0.0069787 Eth | $467,673.00 23,920.960 LINK | 0.1507% |
51 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.67 0.0069368 Eth | $447,920.00 22,987.776 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1448% |
52 | Tokpie | LINK-USDT | $19.84 0.0070031 Eth | $396,117.00 19,968.265 LINK | 0.1258% |
53 | itBit | LINK-USD | $19.80 0.0069877 Eth | $374,583.00 18,918.327 LINK | 0.1192% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.74 0.0069636 Eth | $341,393.00 17,193.096 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1083% |
55 | OKX | LINK-USDC | $19.81 0.0069890 Eth | $335,556.00 17,100.123 LINK | 0.1077% |
56 | LATOKEN | LINK-BTC | $19.80 0.0069823 Eth | $334,126.00 16,877.330 LINK | 0.1063% |
57 | Slex | LINK-ETH | $19.73 0.0069713 Eth | $333,129.00 16,781.830 LINK | 0.1057% |
58 | P2B | LINK-USDT | $19.75 0.0069754 Eth | $323,661.00 16,385.280 LINK | 0.1032% |
59 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.78 0.0069779 Eth | $311,854.00 15,659.710 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0986% |
60 | BitDelta | LINK-USDT | $19.79 0.0069834 Eth | $302,200.00 15,486.000 LINK | 0.0975% |
61 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.80 0.0069859 Eth | $296,603.00 14,899.244 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0939% |
62 | BitMart | LINK-BTC | $19.80 0.0069848 Eth | $255,973.00 12,927.500 LINK | 0.0814% |
63 | Binance | LINK-BNB | $19.77 0.0069896 Eth | $231,479.00 11,851.834 LINK | 0.0747% |
64 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.86 0.0070062 Eth | $226,140.00 11,568.151 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0729% |
65 | KuCoin | LINK-USDC | $19.70 0.0069477 Eth | $221,523.00 11,245.341 LINK | 0.0708% |
66 | Hotcoin | LINK-BTC | $19.74 0.0069750 Eth | $211,984.00 10,737.420 LINK | 0.0676% |
67 | GMO Japan | LINK-JPY | $19.78 0.0069864 Eth | $204,482.00 10,340.000 LINK | 0.0651% |
68 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.81 0.0069887 Eth | $200,071.00 21,029.099 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1325% |
69 | BitStorage | LINK-ETH | $19.73 0.0069707 Eth | $191,135.00 9,687.330 LINK | 0.0610% |
70 | Bitkub | LINK-THB | $19.77 0.0069731 Eth | $188,003.00 9,511.730 LINK | 0.0599% |
71 | WhiteBIT | LINK-BTC | $19.75 0.0069692 Eth | $182,415.00 9,235.250 LINK | 0.0582% |
72 | BYDFi | LINK-USDC | $19.77 0.0069783 Eth | $181,841.00 9,195.960 LINK | 0.0579% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $19.68 0.0069445 Eth | $177,153.00 9,084.888 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0572% |
74 | WhiteBIT | LINK-EUR | $19.84 0.0069957 Eth | $176,535.00 8,899.400 LINK | 0.0561% |
75 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.81 0.0069887 Eth | $161,220.00 8,208.047 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0517% |
76 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $19.76 0.0069702 Eth | $150,799.00 7,594.355 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0478% |
77 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $19.73 0.0069613 Eth | $127,988.00 6,546.047 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0412% |
78 | PointPay | LINK-BTC | $19.72 0.0069715 Eth | $120,352.00 6,162.232 LINK | 0.0388% |
79 | Bitso | LINK-USD | $19.71 0.0069637 Eth | $100,296.00 5,088.212 LINK | 0.0321% |
80 | Gemini | LINK-ETH | $19.64 0.0069273 Eth | $78,651.00 4,005.155 LINK | 0.0252% |
81 | BitMart | LINK-ETH | $19.77 0.0069724 Eth | $75,456.00 3,817.580 LINK | 0.0240% |
82 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $19.80 0.0069819 Eth | $71,281.00 70,397.470 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4434% |
83 | KuCoin | LINK-BTC | $19.77 0.0069727 Eth | $67,079.00 3,392.981 LINK | 0.0214% |
84 | Hotcoin | LINK-ETH | $19.73 0.0069656 Eth | $59,761.00 3,029.650 LINK | 0.0191% |
85 | Mercado Bitcoin | LINK-BRL | $19.80 0.0069840 Eth | $57,792.00 2,919.303 LINK | 0.0184% |
86 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.71 0.0069558 Eth | $53,698.00 2,723.158 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0172% |
87 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $19.70 0.0069515 Eth | $45,463.00 2,332.443 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0147% |
88 | Binance US | LINK-USDT | $19.73 0.0069638 Eth | $44,103.00 2,235.796 LINK | 0.0141% |
89 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.75 0.0069805 Eth | $32,588.00 32,379.231 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.2040% |
90 | CoinEx | LINK-USDC | $19.72 0.0069678 Eth | $29,405.00 1,523.869 LINK | 0.0096% |
91 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $19.81 0.0069886 Eth | $27,329.00 1,404.183 0X5947BB275C521040051D82396192181B413227A3 | 0.0088% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $19.72 0.0069667 Eth | $26,751.00 2,127.502 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0134% |
93 | Dex-Trade | LINK-ETH | $19.79 0.0069823 Eth | $25,513.00 1,289.090 LINK | 0.0081% |
94 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $19.76 0.0069733 Eth | $24,075.00 38.263 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.69 0.0069475 Eth | $23,495.00 1,203.095 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0076% |
96 | Bitexen | LINK-TRY | $19.57 0.0069057 Eth | $21,080.00 1,077.280 LINK | 0.0068% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $19.69 0.0069583 Eth | $20,435.00 1,045.517 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0066% |
98 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.79 0.0069826 Eth | $18,990.39 954.838 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0060% |
99 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $19.75 0.0069685 Eth | $18,550.33 940.378 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0059% |
100 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $19.67 0.0069370 Eth | $17,024.13 873.727 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0055% |
Contract Source Code Verified (Exact Match)
Contract Name:
LinkToken
Compiler Version
v0.4.16+commit.d7661dd9
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion, Audited
Contract Source Code (Solidity)Audit Report
/** *Submitted for verification at Etherscan.io on 2017-09-23 */ pragma solidity ^0.4.16; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint256 a, uint256 b) internal constant returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal constant returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal constant returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { uint256 public totalSupply; function balanceOf(address who) constant returns (uint256); function transfer(address to, uint256 value) returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value) returns (bool); function approve(address spender, uint256 value) returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } contract ERC677 is ERC20 { function transferAndCall(address to, uint value, bytes data) returns (bool success); event Transfer(address indexed from, address indexed to, uint value, bytes data); } contract ERC677Receiver { function onTokenTransfer(address _sender, uint _value, bytes _data); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */ contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /* * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract ERC677Token is ERC677 { /** * @dev transfer token to a contract address with additional data if the recipient is a contact. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public returns (bool success) { super.transfer(_to, _value); Transfer(msg.sender, _to, _value, _data); if (isContract(_to)) { contractFallback(_to, _value, _data); } return true; } // PRIVATE function contractFallback(address _to, uint _value, bytes _data) private { ERC677Receiver receiver = ERC677Receiver(_to); receiver.onTokenTransfer(msg.sender, _value, _data); } function isContract(address _addr) private returns (bool hasCode) { uint length; assembly { length := extcodesize(_addr) } return length > 0; } } contract LinkToken is StandardToken, ERC677Token { uint public constant totalSupply = 10**27; string public constant name = 'ChainLink Token'; uint8 public constant decimals = 18; string public constant symbol = 'LINK'; function LinkToken() public { balances[msg.sender] = totalSupply; } /** * @dev transfer token to a specified address with additional data if the recipient is a contract. * @param _to The address to transfer to. * @param _value The amount to be transferred. * @param _data The extra data to be passed to the receiving contract. */ function transferAndCall(address _to, uint _value, bytes _data) public validRecipient(_to) returns (bool success) { return super.transferAndCall(_to, _value, _data); } /** * @dev transfer token to a specified address. * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint _value) public validRecipient(_to) returns (bool success) { return super.transfer(_to, _value); } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public validRecipient(_spender) returns (bool) { return super.approve(_spender, _value); } /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public validRecipient(_to) returns (bool) { return super.transferFrom(_from, _to, _value); } // MODIFIERS modifier validRecipient(address _recipient) { require(_recipient != address(0) && _recipient != address(this)); _; } }
Contract Security Audit
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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