ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,194 ( 0.004%)
Market
Price
$11.76 @ 0.004717 ETH (+2.83%)
Onchain Market Cap
$11,760,000,000.00
Circulating Supply Market Cap
$7,373,903,015.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
35.151444773491769344 LINKValue
$413.38 ( ~0.165813168238761 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $11.77 0.0047119 Eth | $28,724,225.00 2,481,684.550 LINK | 17.3277% |
2 | Coinbase Exchange | LINK-USD | $11.75 0.0047184 Eth | $15,476,656.00 1,316,825.960 LINK | 9.1944% |
3 | WhiteBIT | LINK-USDT | $11.81 0.0047326 Eth | $13,568,609.00 1,149,128.490 LINK | 8.0235% |
4 | HTX | LINK-USDT | $11.74 0.0047137 Eth | $12,269,993.00 1,067,790.672 LINK | 7.4556% |
5 | Bitget | LINK-USDT | $11.74 0.0047131 Eth | $9,132,366.00 794,590.453 LINK | 5.5480% |
6 | Bybit | LINK-USDT | $11.75 0.0047147 Eth | $7,347,443.00 636,559.268 LINK | 4.4446% |
7 | Upbit | LINK-KRW | $11.76 0.0047195 Eth | $6,000,342.00 510,356.076 LINK | 3.5634% |
8 | Azbit | LINK-USDT | $11.79 0.0047171 Eth | $5,509,552.00 479,225.930 LINK | 3.3461% |
9 | P2B | LINK-USDT | $11.81 0.0047289 Eth | $5,345,513.00 452,566.010 LINK | 3.1599% |
10 | OKX | LINK-USDT | $11.74 0.0047115 Eth | $4,620,581.00 398,549.427 LINK | 2.7828% |
11 | Slex | LINK-USDT | $11.84 0.0047377 Eth | $4,467,996.00 387,526.710 LINK | 2.7058% |
12 | BTSE | LINK-USDT | $11.74 0.0047072 Eth | $4,045,805.00 344,694.518 LINK | 2.4067% |
13 | Biconomy.com | LINK-USDT | $11.75 0.0047104 Eth | $3,526,665.00 305,889.720 LINK | 2.1358% |
14 | CoinW | LINK-USDT | $11.74 0.0047091 Eth | $3,021,600.00 257,328.030 LINK | 1.7967% |
15 | XT.COM | LINK-USDT | $11.78 0.0047197 Eth | $2,860,862.00 247,129.910 LINK | 1.7255% |
16 | Bitunix | LINK-USDT | $11.78 0.0047154 Eth | $2,540,685.00 215,727.350 LINK | 1.5063% |
17 | Hotcoin | LINK-USDT | $11.75 0.0047180 Eth | $2,513,574.00 213,856.960 LINK | 1.4932% |
18 | ProBit Global | LINK-USDT | $11.76 0.0047129 Eth | $2,201,582.00 187,248.082 LINK | 1.3074% |
19 | KuCoin | LINK-USDT | $11.74 0.0047097 Eth | $2,141,288.00 182,333.387 LINK | 1.2731% |
20 | Coinstore | LINK-USDT | $11.74 0.0047135 Eth | $2,085,953.00 180,289.860 LINK | 1.2588% |
21 | LBank | LINK-USDT | $11.80 0.0047311 Eth | $1,890,268.00 160,160.540 LINK | 1.1183% |
22 | C-Patex | LINK-USDT | $11.76 0.0047129 Eth | $1,834,026.00 156,002.322 LINK | 1.0892% |
23 | AscendEX (BitMax) | LINK-USDT | $11.70 0.0046970 Eth | $1,756,835.00 150,142.700 LINK | 1.0483% |
24 | Trubit | LINK-USDT | $11.77 0.0047176 Eth | $1,734,218.00 151,064.810 LINK | 1.0548% |
25 | Bithumb | LINK-KRW | $11.74 0.0047126 Eth | $1,428,811.00 121,675.930 LINK | 0.8496% |
26 | BYDFi | LINK-USDT | $11.81 0.0047342 Eth | $1,413,838.00 119,689.090 LINK | 0.8357% |
27 | Bitexen | LINK-TRY | $11.79 0.0047200 Eth | $1,265,412.00 107,330.340 LINK | 0.7494% |
28 | FameEX | LINK-USDT | $11.75 0.0047111 Eth | $1,148,516.00 99,174.755 LINK | 0.6925% |
29 | Bitvavo | LINK-EUR | $11.78 0.0047211 Eth | $976,554.00 82,914.016 LINK | 0.5789% |
30 | Dex-Trade | LINK-USDT | $11.78 0.0047209 Eth | $960,868.00 81,567.454 LINK | 0.5695% |
31 | HashKey Global | LINK-USDT | $11.75 0.0047095 Eth | $948,388.00 83,349.479 LINK | 0.5820% |
32 | WhiteBIT | LINK-BTC | $11.76 0.0047139 Eth | $938,881.00 79,819.010 LINK | 0.5573% |
33 | Azbit | LINK-ETH | $11.75 0.0047144 Eth | $938,138.00 82,780.160 LINK | 0.5780% |
34 | Bitexen | LINK-USDT | $11.74 0.0047149 Eth | $773,861.00 65,893.230 LINK | 0.4601% |
35 | tanX | LINK-USDC | $11.83 0.0047336 Eth | $625,422.00 54,188.010 LINK | 0.3784% |
36 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.78 0.0047281 Eth | $608,522.00 53,492.011 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3735% |
37 | PointPay | LINK-USDT | $11.74 0.0047103 Eth | $479,877.00 41,442.971 LINK | 0.2894% |
38 | LATOKEN | LINK-USDT | $11.76 0.0047116 Eth | $399,862.00 34,001.889 LINK | 0.2374% |
39 | BigONE | LINK-USDT | $11.81 0.0047227 Eth | $399,397.00 33,831.510 LINK | 0.2362% |
40 | EXMO | LINK-USDT | $11.73 0.0047104 Eth | $386,717.00 32,955.340 LINK | 0.2301% |
41 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.81 0.0047404 Eth | $385,190.00 33,901.475 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2367% |
42 | ProBit Global | LINK-BTC | $11.76 0.0047153 Eth | $374,516.00 31,836.896 LINK | 0.2223% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.75 0.0047175 Eth | $368,388.00 32,595.557 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2276% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.82 0.0047445 Eth | $363,325.00 31,461.937 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2197% |
45 | Coinbase Exchange | LINK-EUR | $11.77 0.0047217 Eth | $338,761.00 28,773.020 LINK | 0.2009% |
46 | Phemex | LINK-USDT | $11.76 0.0047076 Eth | $316,885.00 26,944.080 LINK | 0.1881% |
47 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.71 0.0047005 Eth | $302,604.00 26,519.221 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1852% |
48 | CoinEx | LINK-USDT | $11.80 0.0047243 Eth | $300,187.00 26,017.711 LINK | 0.1817% |
49 | LATOKEN | LINK-BTC | $11.77 0.0047162 Eth | $297,160.00 25,244.366 LINK | 0.1763% |
50 | Bybit | LINK-USDC | $11.77 0.0047244 Eth | $296,746.00 25,592.157 LINK | 0.1787% |
51 | Bitbank | LINK-JPY | $11.84 0.0047456 Eth | $255,628.00 21,593.823 LINK | 0.1508% |
52 | Coinbase Exchange | LINK-GBP | $11.76 0.0047123 Eth | $246,912.00 21,002.850 LINK | 0.1466% |
53 | Hotcoin | LINK-BTC | $11.76 0.0047212 Eth | $213,672.00 18,166.940 LINK | 0.1268% |
54 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.82 0.0047436 Eth | $205,970.00 17,939.006 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1253% |
55 | Gemini | LINK-USD | $11.79 0.0047335 Eth | $199,662.00 16,927.735 LINK | 0.1182% |
56 | BitMart | LINK-BTC | $11.76 0.0047201 Eth | $190,661.00 16,210.600 LINK | 0.1132% |
57 | Hotcoin | LINK-ETH | $11.75 0.0047183 Eth | $143,799.00 12,233.840 LINK | 0.0854% |
58 | BitDelta | LINK-USDT | $11.76 0.0047134 Eth | $132,072.00 11,474.000 LINK | 0.0801% |
59 | WhiteBIT | LINK-TRY | $11.79 0.0047229 Eth | $117,624.00 9,980.740 LINK | 0.0697% |
60 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $11.77 0.0047235 Eth | $116,334.00 10,071.282 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0703% |
61 | BYDFi | LINK-USDC | $11.77 0.0047222 Eth | $114,177.00 9,696.710 LINK | 0.0677% |
62 | Coinbase Exchange | LINK-ETH | $11.75 0.0047165 Eth | $111,321.00 9,472.020 LINK | 0.0661% |
63 | Slex | LINK-BTC | $11.75 0.0047160 Eth | $109,566.00 9,420.400 LINK | 0.0658% |
64 | Bitci TR | LINK-TRY | $11.87 0.0047526 Eth | $88,090.00 7,633.730 LINK | 0.0533% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.82 0.0047445 Eth | $80,752.00 79,183.190 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5529% |
66 | Slex | LINK-ETH | $11.78 0.0047200 Eth | $73,814.00 6,455.000 LINK | 0.0451% |
67 | BitMart | LINK-ETH | $11.76 0.0047180 Eth | $73,719.00 6,270.720 LINK | 0.0438% |
68 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.77 0.0047236 Eth | $70,875.00 6,200.612 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0433% |
69 | PointPay | LINK-BTC | $11.75 0.0047101 Eth | $69,812.00 6,003.143 LINK | 0.0419% |
70 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.79 0.0047253 Eth | $64,097.00 62,834.470 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4387% |
71 | OKX | LINK-USDC | $11.80 0.0047388 Eth | $53,305.00 4,574.588 LINK | 0.0319% |
72 | Bitso | LINK-USD | $11.80 0.0047250 Eth | $51,319.00 4,350.343 LINK | 0.0304% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.74 0.0047144 Eth | $40,128.00 3,458.524 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0241% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.82 0.0047445 Eth | $37,524.00 3,267.393 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0228% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.76 0.0047192 Eth | $37,372.00 3,249.436 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0227% |
76 | Bitcointry | LINK-USDT | $11.77 0.0047194 Eth | $29,683.00 2,584.896 LINK | 0.0180% |
77 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.78 0.0047281 Eth | $29,010.00 2,491.439 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0174% |
78 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $11.79 0.0047322 Eth | $27,311.00 2,397.109 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0167% |
79 | Binance US | LINK-USDT | $11.77 0.0047178 Eth | $27,104.00 2,303.069 LINK | 0.0161% |
80 | EXMO | LINK-BTC | $11.74 0.0047131 Eth | $26,794.00 2,282.031 LINK | 0.0159% |
81 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.82 0.0047376 Eth | $24,539.00 23,997.828 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1676% |
82 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $11.73 0.0047083 Eth | $22,678.00 1,945.685 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0136% |
83 | Nonkyc.io | LINK-BTC | $11.82 0.0047338 Eth | $19,831.47 1,714.847 LINK | 0.0120% |
84 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $11.82 0.0047438 Eth | $17,454.88 26.692 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
85 | Coinone | LINK-KRW | $11.81 0.0047415 Eth | $14,433.15 1,221.616 LINK | 0.0085% |
86 | KuCoin | LINK-KCS | $11.74 0.0047109 Eth | $13,453.42 1,145.751 LINK | 0.0080% |
87 | PancakeSwap V1 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.82 0.0047439 Eth | $12,750.23 979.022 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0068% |
88 | Uniswap V3 (Ethereum) | 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $11.83 0.0047398 Eth | $9,440.47 62.790 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9 | 0.0004% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.76 0.0047192 Eth | $9,128.62 803.398 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0056% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.74 0.0047133 Eth | $7,454.56 640.623 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0045% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.83 0.0047338 Eth | $7,207.97 627.862 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0044% |
92 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.79 0.0047317 Eth | $6,894.71 595.420 0X5947BB275C521040051D82396192181B413227A3 | 0.0042% |
93 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.78 0.0047281 Eth | $6,631.69 6,530.791 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0456% |
94 | Gemini | LINK-BTC | $11.79 0.0047296 Eth | $5,954.46 505.253 LINK | 0.0035% |
95 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.81 0.0047400 Eth | $5,811.34 504.444 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0035% |
96 | CoinEx | LINK-BTC | $11.74 0.0047145 Eth | $5,716.06 492.872 LINK | 0.0034% |
97 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.81 0.0047358 Eth | $3,778.00 329.495 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0023% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.81 0.0047401 Eth | $2,400.90 207.521 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0014% |
99 | CoinEx | LINK-USDC | $11.81 0.0047224 Eth | $2,222.81 193.065 LINK | 0.0013% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $11.77 0.0047240 Eth | $1,888.68 163.278 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0011% |
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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