ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
727,264 ( 0.021%)
Market
Price
$24.23 @ 0.007004 ETH (-5.39%)
Onchain Market Cap
$24,230,000,000.00
Circulating Supply Market Cap
$15,283,552,429.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
1,000.710857959204258274 LINKValue
$24,247.22 ( ~7.0091 Eth) [0.0001%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.27 0.0070292 Eth | $131,539,133.00 5,274,834.650 LINK | 23.6140% |
2 | WhiteBIT | LINK-USDT | $24.26 0.0070235 Eth | $41,940,131.00 1,729,126.130 LINK | 7.7408% |
3 | Coinbase Exchange | LINK-USD | $24.31 0.0070405 Eth | $32,988,962.00 1,357,012.000 LINK | 6.0750% |
4 | Bybit | LINK-USDT | $24.32 0.0070422 Eth | $31,311,826.00 1,255,966.787 LINK | 5.6226% |
5 | P2B | LINK-USDT | $24.30 0.0070393 Eth | $26,827,696.00 1,103,897.660 LINK | 4.9419% |
6 | CoinW | LINK-USDT | $24.26 0.0070262 Eth | $26,550,565.00 1,094,214.640 LINK | 4.8985% |
7 | OKX | LINK-USDT | $24.32 0.0070426 Eth | $21,665,587.00 868,698.518 LINK | 3.8889% |
8 | DigiFinex | LINK-USDT | $24.32 0.0070424 Eth | $16,547,299.00 680,494.990 LINK | 3.0464% |
9 | XT.COM | LINK-USDT | $24.26 0.0070250 Eth | $13,991,503.00 560,508.060 LINK | 2.5092% |
10 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.28 0.0070301 Eth | $13,766,810.00 554,752.657 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.4835% |
11 | Azbit | LINK-USDT | $24.12 0.0069897 Eth | $13,458,892.00 539,796.514 LINK | 2.4165% |
12 | FameEX | LINK-USDT | $24.25 0.0070266 Eth | $13,114,775.00 525,989.311 LINK | 2.3547% |
13 | Coinstore | LINK-USDT | $24.26 0.0070296 Eth | $11,659,878.00 468,364.440 LINK | 2.0967% |
14 | HTX | LINK-USDT | $24.34 0.0070511 Eth | $11,463,298.00 461,504.808 LINK | 2.0660% |
15 | Bitunix | LINK-USDT | $24.24 0.0070229 Eth | $10,243,494.00 422,680.850 LINK | 1.8922% |
16 | Binance | LINK-FDUSD | $24.24 0.0070206 Eth | $8,581,451.00 344,720.600 LINK | 1.5432% |
17 | Biconomy.com | LINK-USDT | $24.23 0.0070134 Eth | $7,714,476.00 309,901.220 LINK | 1.3873% |
18 | BYDFi | LINK-USDT | $24.32 0.0070437 Eth | $7,678,672.00 315,725.020 LINK | 1.4134% |
19 | LATOKEN | LINK-USDT | $24.27 0.0070171 Eth | $6,425,815.00 264,796.991 LINK | 1.1854% |
20 | Kraken | LINK-USD | $24.28 0.0070297 Eth | $5,740,646.00 236,477.138 LINK | 1.0586% |
21 | QMall | LINK-USDT | $24.18 0.0070089 Eth | $5,151,600.00 206,800.128 LINK | 0.9258% |
22 | KuCoin | LINK-USDT | $24.33 0.0070441 Eth | $5,021,116.00 206,413.834 LINK | 0.9241% |
23 | Dex-Trade | LINK-USDT | $24.26 0.0070267 Eth | $4,270,493.00 176,007.890 LINK | 0.7879% |
24 | Coinbase Exchange | LINK-GBP | $24.26 0.0070255 Eth | $3,928,646.00 161,925.480 LINK | 0.7249% |
25 | Hotcoin | LINK-USDT | $24.27 0.0070334 Eth | $3,586,551.00 147,793.200 LINK | 0.6616% |
26 | Bitvavo | LINK-EUR | $24.27 0.0070275 Eth | $2,867,971.00 118,167.825 LINK | 0.5290% |
27 | Dcoin | LINK-USDT | $24.19 0.0070115 Eth | $2,679,778.00 110,770.000 LINK | 0.4959% |
28 | EXMO | LINK-USDT | $24.32 0.0070495 Eth | $2,128,589.00 87,509.479 LINK | 0.3918% |
29 | PointPay | LINK-USDT | $24.20 0.0070151 Eth | $2,092,606.00 84,008.110 LINK | 0.3761% |
30 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.35 0.0070542 Eth | $2,056,854.00 82,547.704 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3695% |
31 | CoinEx | LINK-USDT | $24.22 0.0070129 Eth | $1,718,262.00 68,920.323 LINK | 0.3085% |
32 | WhiteBIT | LINK-TRY | $24.42 0.0070762 Eth | $1,466,705.00 60,070.910 LINK | 0.2689% |
33 | Coinbase Exchange | LINK-EUR | $24.29 0.0070366 Eth | $1,450,237.00 59,715.090 LINK | 0.2673% |
34 | WhiteBIT | LINK-BTC | $24.29 0.0070327 Eth | $1,389,791.00 57,224.380 LINK | 0.2562% |
35 | Phemex | LINK-USDT | $24.32 0.0070437 Eth | $1,352,271.00 55,601.500 LINK | 0.2489% |
36 | tanX | LINK-USDC | $24.34 0.0070508 Eth | $1,238,178.00 49,775.420 LINK | 0.2228% |
37 | Bitstamp | LINK-USD | $24.32 0.0070434 Eth | $1,172,742.00 48,221.284 LINK | 0.2159% |
38 | BitStorage | LINK-USDT | $24.24 0.0070209 Eth | $1,027,888.00 42,399.190 LINK | 0.1898% |
39 | Bitbank | LINK-JPY | $24.33 0.0070498 Eth | $996,498.00 40,956.114 LINK | 0.1833% |
40 | EarnBIT | LINK-USDT | $24.23 0.0070209 Eth | $989,591.00 39,752.471 LINK | 0.1780% |
41 | Bitstamp | LINK-EUR | $24.31 0.0070413 Eth | $960,153.00 39,492.122 LINK | 0.1768% |
42 | Binance | LINK-TRY | $24.29 0.0070402 Eth | $852,533.00 33,941.160 LINK | 0.1519% |
43 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.19 0.0070102 Eth | $772,418.00 31,319.796 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1402% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.20 0.0070145 Eth | $769,841.00 31,084.753 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1392% |
45 | Coinbase Exchange | LINK-ETH | $24.19 0.0070044 Eth | $712,616.00 29,461.360 LINK | 0.1319% |
46 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.29 0.0070334 Eth | $680,105.00 696,244.571 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.1169% |
47 | Azbit | LINK-ETH | $24.21 0.0070103 Eth | $650,733.00 26,430.381 LINK | 0.1183% |
48 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.25 0.0070292 Eth | $632,448.00 25,795.179 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1155% |
49 | Bybit | LINK-USDC | $24.34 0.0070478 Eth | $617,453.00 24,792.215 LINK | 0.1110% |
50 | BigONE | LINK-USDT | $24.30 0.0070356 Eth | $576,948.00 23,745.770 LINK | 0.1063% |
51 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.23 0.0070166 Eth | $575,586.00 23,172.503 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1037% |
52 | WhiteBIT | LINK-EUR | $24.31 0.0070404 Eth | $521,124.00 21,437.130 LINK | 0.0960% |
53 | Coinbase Exchange | LINK-USDT | $24.21 0.0070110 Eth | $519,545.00 21,458.292 LINK | 0.0961% |
54 | HashKey Exchange | LINK-USD | $24.41 0.0070410 Eth | $514,877.00 20,634.550 LINK | 0.0924% |
55 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.28 0.0070301 Eth | $440,626.00 31,898.999 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1428% |
56 | Slex | LINK-ETH | $24.27 0.0070296 Eth | $438,365.00 17,770.300 LINK | 0.0796% |
57 | Gemini | LINK-USD | $24.32 0.0070426 Eth | $435,572.00 17,912.127 LINK | 0.0802% |
58 | GMO Japan | LINK-JPY | $24.25 0.0070255 Eth | $416,536.00 17,173.200 LINK | 0.0769% |
59 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.35 0.0070542 Eth | $383,143.00 15,347.949 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0687% |
60 | KuCoin | LINK-USDC | $24.29 0.0070350 Eth | $366,860.00 15,100.857 LINK | 0.0676% |
61 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.28 0.0070367 Eth | $360,092.00 369,532.731 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.6543% |
62 | BitMart | LINK-BTC | $24.25 0.0070287 Eth | $348,606.00 14,373.940 LINK | 0.0643% |
63 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.41 0.0070714 Eth | $339,650.00 13,643.300 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0611% |
64 | itBit | LINK-USD | $24.27 0.0070278 Eth | $335,730.00 13,833.147 LINK | 0.0619% |
65 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.25 0.0070204 Eth | $323,906.00 13,009.985 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0582% |
66 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.35 0.0070542 Eth | $319,244.00 328,270.060 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 1.4696% |
67 | BitDelta | LINK-USDT | $24.32 0.0070437 Eth | $292,387.00 11,749.000 LINK | 0.0526% |
68 | Coinbase Exchange | LINK-BTC | $24.28 0.0070361 Eth | $280,224.00 11,542.980 LINK | 0.0517% |
69 | Bitci TR | LINK-TRY | $24.25 0.0070226 Eth | $250,763.00 10,054.580 LINK | 0.0450% |
70 | Bitkub | LINK-THB | $24.26 0.0070256 Eth | $228,663.00 9,424.544 LINK | 0.0422% |
71 | LATOKEN | LINK-BTC | $24.23 0.0070152 Eth | $218,067.00 9,001.148 LINK | 0.0403% |
72 | BitStorage | LINK-ETH | $24.30 0.0070174 Eth | $193,077.00 7,946.210 LINK | 0.0356% |
73 | BitMart | LINK-ETH | $24.24 0.0070259 Eth | $184,163.00 7,596.620 LINK | 0.0340% |
74 | Binance US | LINK-USDT | $24.24 0.0070242 Eth | $182,656.00 7,534.521 LINK | 0.0337% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.29 0.0070410 Eth | $179,577.00 7,248.348 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0324% |
76 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.24 0.0070183 Eth | $160,654.00 6,444.636 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0289% |
77 | PointPay | LINK-BTC | $24.25 0.0070273 Eth | $149,755.00 6,009.619 LINK | 0.0269% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.22 0.0070182 Eth | $140,490.00 5,735.176 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0257% |
79 | BTCMarkets | LINK-AUD | $24.37 0.0070571 Eth | $135,128.00 5,544.585 LINK | 0.0248% |
80 | Hotcoin | LINK-BTC | $24.30 0.0070352 Eth | $123,143.00 5,068.560 LINK | 0.0227% |
81 | Kraken | LINK-GBP | $24.17 0.0069994 Eth | $117,984.00 4,881.235 LINK | 0.0219% |
82 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.33 0.0070467 Eth | $98,370.00 3,948.276 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0177% |
83 | Bitso | LINK-USD | $24.23 0.0070187 Eth | $97,219.00 4,012.106 LINK | 0.0180% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.14 0.0069965 Eth | $87,365.00 3,506.682 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0157% |
85 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.19 0.0070107 Eth | $69,077.00 2,795.308 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0125% |
86 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.24 0.0070199 Eth | $58,389.00 2,364.980 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0106% |
87 | Bitexen | LINK-TRY | $24.07 0.0069648 Eth | $56,701.00 2,355.646 LINK | 0.0105% |
88 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.42 0.0070751 Eth | $53,417.00 2,117.093 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0095% |
89 | Hotcoin | LINK-ETH | $24.26 0.0070262 Eth | $42,403.00 1,747.600 LINK | 0.0078% |
90 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $24.20 0.0070075 Eth | $40,071.00 54.082 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
91 | Bitstamp | LINK-BTC | $24.60 0.0071249 Eth | $35,482.00 1,442.296 LINK | 0.0065% |
92 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.32 0.0070437 Eth | $33,934.00 1,374.901 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0062% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $24.51 0.0071037 Eth | $31,326.00 1,285.358 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0058% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.22 0.0070121 Eth | $20,377.00 819.380 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0037% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $24.18 0.0070079 Eth | $17,506.00 699.945 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0031% |
96 | Binance US | LINK-BTC | $24.22 0.0070136 Eth | $16,448.64 679.194 LINK | 0.0030% |
97 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.46 0.0070815 Eth | $13,553.50 542.364 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0024% |
98 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.25 0.0070227 Eth | $13,246.91 545.773 0X5947BB275C521040051D82396192181B413227A3 | 0.0024% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $24.15 0.0069970 Eth | $13,180.35 532.267 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0024% |
100 | Ace | LINK-USDT | $24.27 0.0070332 Eth | $5,132.25 205.960 LINK | 0.0009% |
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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