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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
721,637 ( 0.000%)
Market
Price
$11.03 @ 0.004514 ETH (+2.89%)
Onchain Market Cap
$11,030,000,000.00
Circulating Supply Market Cap
$6,917,300,890.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | LBank | LINK-USDT | $11.03 0.0045112 Eth | $33,003,128.00 2,992,972.250 LINK | 21.0926% |
2 | Coinbase Exchange | LINK-USD | $11.03 0.0045133 Eth | $15,907,868.00 1,441,974.940 LINK | 10.1621% |
3 | HTX | LINK-USDT | $11.02 0.0045117 Eth | $9,286,491.00 853,333.364 LINK | 6.0137% |
4 | Bitget | LINK-USDT | $11.02 0.0045078 Eth | $8,739,268.00 803,409.217 LINK | 5.6619% |
5 | Websea | LINK-USDT | $11.02 0.0045061 Eth | $8,063,222.00 0.000 LINK | 0.0000% |
6 | Bybit | LINK-USDT | $11.03 0.0045146 Eth | $7,531,223.00 694,798.624 LINK | 4.8965% |
7 | WhiteBIT | LINK-USDT | $11.02 0.0045046 Eth | $5,872,377.00 532,929.790 LINK | 3.7557% |
8 | Azbit | LINK-USDT | $11.03 0.0045086 Eth | $5,300,252.00 487,327.110 LINK | 3.4344% |
9 | P2B | LINK-USDT | $11.03 0.0045112 Eth | $3,961,082.00 359,220.710 LINK | 2.5316% |
10 | BVOX | LINK-USDT | $11.02 0.0045061 Eth | $3,714,732.00 342,416.770 LINK | 2.4131% |
11 | Biconomy.com | LINK-USDT | $11.03 0.0045089 Eth | $3,511,348.00 323,247.320 LINK | 2.2780% |
12 | OKX | LINK-USDT | $11.03 0.0045132 Eth | $3,480,177.00 322,037.055 LINK | 2.2695% |
13 | Slex | LINK-USDT | $11.02 0.0045087 Eth | $3,165,270.00 291,742.830 LINK | 2.0560% |
14 | WEEX | LINK-USDT | $11.04 0.0045122 Eth | $3,140,494.00 288,905.650 LINK | 2.0360% |
15 | BTSE | LINK-USDT | $11.02 0.0045086 Eth | $3,049,758.00 276,802.506 LINK | 1.9507% |
16 | KuCoin | LINK-USDT | $11.03 0.0045116 Eth | $2,737,599.00 248,304.491 LINK | 1.7499% |
17 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.06 0.0045268 Eth | $2,662,338.00 244,140.125 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.7205% |
18 | DigiFinex | LINK-USDT | $11.03 0.0045130 Eth | $2,519,690.00 228,540.190 LINK | 1.6106% |
19 | FameEX | LINK-USDT | $11.02 0.0045107 Eth | $2,265,726.00 208,250.391 LINK | 1.4676% |
20 | Upbit | LINK-KRW | $11.06 0.0045262 Eth | $2,066,163.00 186,857.582 LINK | 1.3169% |
21 | HashKey Global | LINK-USDT | $11.03 0.0045154 Eth | $2,014,894.00 186,115.231 LINK | 1.3116% |
22 | Trubit | LINK-USDT | $11.02 0.0045107 Eth | $1,978,200.00 181,766.080 LINK | 1.2810% |
23 | Deepcoin | LINK-USDT | $11.03 0.0045107 Eth | $1,828,252.00 172,666.820 LINK | 1.2168% |
24 | AscendEX (BitMax) | LINK-USDT | $11.03 0.0045124 Eth | $1,771,539.00 160,655.100 LINK | 1.1322% |
25 | Gate.io | LINK-USDT | $11.03 0.0045143 Eth | $1,661,514.00 153,400.810 LINK | 1.0811% |
26 | XT.COM | LINK-USDT | $11.04 0.0045147 Eth | $1,649,361.00 151,993.880 LINK | 1.0712% |
27 | CoinW | LINK-USDT | $11.03 0.0045138 Eth | $1,506,835.00 136,641.820 LINK | 0.9630% |
28 | Crypto.com Exchange | LINK-USDT | $11.03 0.0045158 Eth | $1,290,181.00 116,947.400 LINK | 0.8242% |
29 | Crypto.com Exchange | LINK-USD | $11.03 0.0045162 Eth | $1,245,649.00 112,902.080 LINK | 0.7957% |
30 | C-Patex | LINK-USDT | $11.03 0.0045116 Eth | $1,167,768.00 105,892.403 LINK | 0.7463% |
31 | Kraken | LINK-USD | $11.02 0.0045120 Eth | $1,069,480.00 97,025.252 LINK | 0.6838% |
32 | Bitvavo | LINK-EUR | $11.02 0.0045112 Eth | $974,502.00 88,397.534 LINK | 0.6230% |
33 | BYDFi | LINK-USDT | $11.04 0.0045139 Eth | $945,517.00 85,668.040 LINK | 0.6037% |
34 | Azbit | LINK-ETH | $11.03 0.0045110 Eth | $938,342.00 86,052.797 LINK | 0.6064% |
35 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.98 0.0044928 Eth | $840,795.00 77,429.990 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.5457% |
36 | Hotcoin | LINK-USDT | $11.02 0.0045087 Eth | $812,710.00 73,762.840 LINK | 0.5198% |
37 | FMCPAY | LINK-USDT | $11.03 0.0045081 Eth | $710,796.00 65,395.467 LINK | 0.4609% |
38 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.02 0.0045107 Eth | $701,177.00 64,809.897 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.4567% |
39 | FMFW.io | LINK-USDT | $11.03 0.0045149 Eth | $668,931.00 60,632.320 LINK | 0.4273% |
40 | HitBTC | LINK-USDT | $11.03 0.0045144 Eth | $658,959.00 60,618.200 LINK | 0.4272% |
41 | Dex-Trade | LINK-USDT | $11.03 0.0045112 Eth | $634,387.00 57,530.961 LINK | 0.4054% |
42 | LATOKEN | LINK-USDT | $11.04 0.0045126 Eth | $572,095.00 51,834.972 LINK | 0.3653% |
43 | Bithumb | LINK-KRW | $11.04 0.0045199 Eth | $539,110.00 48,820.891 LINK | 0.3441% |
44 | FMCPAY | LINK-BTC | $11.02 0.0045103 Eth | $462,309.00 42,228.600 LINK | 0.2976% |
45 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.02 0.0045081 Eth | $449,377.00 41,299.888 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2911% |
46 | tanX | LINK-USDC | $10.97 0.0044925 Eth | $447,230.00 41,208.940 LINK | 0.2904% |
47 | BigONE | LINK-USDT | $11.02 0.0045040 Eth | $410,442.00 37,257.380 LINK | 0.2626% |
48 | WhiteBIT | LINK-BTC | $11.04 0.0045125 Eth | $395,229.00 35,805.280 LINK | 0.2523% |
49 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.98 0.0044933 Eth | $343,670.00 31,779.851 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2240% |
50 | FMCPAY | LINK-ETH | $11.02 0.0045124 Eth | $319,720.00 29,395.520 LINK | 0.2072% |
51 | CoinEx | LINK-USDT | $11.03 0.0045129 Eth | $315,838.00 29,024.953 LINK | 0.2045% |
52 | PointPay | LINK-USDT | $11.02 0.0045087 Eth | $299,967.00 27,629.551 LINK | 0.1947% |
53 | EXMO | LINK-USDT | $11.02 0.0045123 Eth | $245,740.00 22,291.150 LINK | 0.1571% |
54 | LATOKEN | LINK-BTC | $11.04 0.0045148 Eth | $239,179.00 21,660.404 LINK | 0.1526% |
55 | Bit2Me | LINK-EUR | $11.03 0.0045090 Eth | $211,142.00 19,229.993 LINK | 0.1355% |
56 | Bybit | LINK-USDC | $11.02 0.0045122 Eth | $201,225.00 18,554.582 LINK | 0.1308% |
57 | BitMart | LINK-BTC | $11.03 0.0045156 Eth | $181,808.00 16,480.900 LINK | 0.1161% |
58 | Gemini | LINK-USD | $10.99 0.0044966 Eth | $156,241.00 14,223.001 LINK | 0.1002% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.03 0.0045149 Eth | $146,119.00 13,437.669 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0947% |
60 | Hotcoin | LINK-ETH | $11.03 0.0045151 Eth | $123,218.00 11,167.470 LINK | 0.0787% |
61 | BYDFi | LINK-USDC | $11.01 0.0045045 Eth | $107,337.00 9,748.920 LINK | 0.0687% |
62 | BitDelta | LINK-USDT | $11.03 0.0045081 Eth | $105,139.00 9,671.000 LINK | 0.0682% |
63 | Bitci TR | LINK-TRY | $11.02 0.0045108 Eth | $104,380.00 9,580.302 LINK | 0.0675% |
64 | Hotcoin | LINK-BTC | $11.02 0.0045115 Eth | $103,364.00 9,375.530 LINK | 0.0661% |
65 | OKX | LINK-USDC | $11.03 0.0045123 Eth | $92,108.00 8,514.327 LINK | 0.0600% |
66 | Slex | LINK-ETH | $11.04 0.0045181 Eth | $84,852.00 7,793.640 LINK | 0.0549% |
67 | Binance | LINK-TRY | $11.06 0.0045275 Eth | $80,247.00 7,385.750 LINK | 0.0521% |
68 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.00 0.0045013 Eth | $77,425.00 7,086.105 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0499% |
69 | Slex | LINK-BTC | $11.04 0.0045167 Eth | $74,859.00 6,827.400 LINK | 0.0481% |
70 | Bitkub | LINK-THB | $11.05 0.0045203 Eth | $67,988.00 6,153.254 LINK | 0.0434% |
71 | Bitget | LINK-EUR | $11.06 0.0045278 Eth | $46,659.00 4,281.780 LINK | 0.0302% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.03 0.0045149 Eth | $44,498.00 4,113.032 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0290% |
73 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.03 0.0045149 Eth | $40,371.00 39,817.872 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.2806% |
74 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.98 0.0044929 Eth | $34,781.00 34,230.430 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2412% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.03 0.0045130 Eth | $28,547.00 2,624.683 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0185% |
76 | CoinEx | LINK-USDC | $11.00 0.0045036 Eth | $24,176.00 2,182.334 LINK | 0.0154% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.03 0.0045139 Eth | $23,744.00 2,180.643 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0154% |
78 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $10.99 0.0044939 Eth | $20,173.00 1,867.306 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0132% |
79 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.02 0.0045099 Eth | $18,735.78 18,454.908 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1301% |
80 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.02 0.0045093 Eth | $17,993.26 1,660.388 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0117% |
81 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.98 0.0044933 Eth | $17,727.75 1,639.123 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0116% |
82 | Mercado Bitcoin | LINK-BRL | $11.03 0.0045152 Eth | $17,726.49 1,606.665 LINK | 0.0113% |
83 | Binance US | LINK-USDT | $11.01 0.0045048 Eth | $14,455.87 1,313.560 LINK | 0.0093% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.98 0.0044933 Eth | $11,523.57 11,276.974 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0795% |
85 | Coinone | LINK-KRW | $10.99 0.0044989 Eth | $11,008.86 1,001.650 LINK | 0.0071% |
86 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.97 0.0044884 Eth | $8,307.33 764.586 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0054% |
87 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $11.00 0.0044977 Eth | $5,613.25 8.892 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
88 | CoinEx | LINK-BTC | $11.05 0.0045239 Eth | $3,906.06 355.845 LINK | 0.0025% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.05 0.0045219 Eth | $3,356.90 306.373 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0022% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.00 0.0044979 Eth | $3,163.34 290.754 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0020% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.03 0.0045078 Eth | $2,258.45 206.904 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0015% |
92 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.02 0.0045093 Eth | $1,425.47 131.556 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0009% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.02 0.0045083 Eth | $1,136.44 104.592 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0007% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $11.03 0.0045131 Eth | $1,122.43 101.308 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0007% |
95 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.00 0.0044970 Eth | $757.95 49.359 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0003% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.01 0.0045063 Eth | $702.52 64.950 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0005% |
97 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.01 0.0045033 Eth | $389.16 35.909 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0003% |
98 | CEX.IO | LINK-USDT | $11.03 0.0045132 Eth | $280.88 25.714 LINK | 0.0002% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $11.00 0.0044979 Eth | $174.09 16.306 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $11.00 0.0045000 Eth | $102.55 9.467 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
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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