ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
720,995 ( 0.013%)
Market
Price
$12.09 @ 0.004616 ETH (-0.42%)
Onchain Market Cap
$12,090,000,000.00
Circulating Supply Market Cap
$7,584,168,549.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0 LINKValue
$0.00Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | LBank | LINK-USDT | $12.08 0.0046100 Eth | $36,349,120.00 3,009,113.920 LINK | 18.4926% |
2 | Binance | LINK-USDT | $12.09 0.0046093 Eth | $20,555,699.00 1,707,932.340 LINK | 10.4962% |
3 | Bybit | LINK-USDT | $12.07 0.0046069 Eth | $14,611,265.00 1,212,303.084 LINK | 7.4503% |
4 | Coinbase Exchange | LINK-USD | $12.05 0.0045998 Eth | $14,462,806.00 1,199,934.130 LINK | 7.3742% |
5 | HTX | LINK-USDT | $12.07 0.0046070 Eth | $13,344,928.00 1,107,424.197 LINK | 6.8057% |
6 | WhiteBIT | LINK-USDT | $12.06 0.0046027 Eth | $12,607,150.00 1,045,693.780 LINK | 6.4264% |
7 | Bitget | LINK-USDT | $12.06 0.0046055 Eth | $9,586,274.00 794,467.001 LINK | 4.8824% |
8 | Websea | LINK-USDT | $12.08 0.0046120 Eth | $8,911,059.00 0.000 LINK | 0.0000% |
9 | WEEX | LINK-USDT | $12.07 0.0046067 Eth | $5,093,736.00 423,232.520 LINK | 2.6010% |
10 | Azbit | LINK-USDT | $12.09 0.0046116 Eth | $5,012,680.00 415,917.900 LINK | 2.5560% |
11 | Biconomy.com | LINK-USDT | $12.07 0.0046049 Eth | $4,934,175.00 409,324.750 LINK | 2.5155% |
12 | P2B | LINK-USDT | $12.08 0.0046099 Eth | $4,240,476.00 351,020.610 LINK | 2.1572% |
13 | BVOX | LINK-USDT | $12.06 0.0046051 Eth | $3,641,898.00 302,192.400 LINK | 1.8571% |
14 | Slex | LINK-USDT | $12.10 0.0046141 Eth | $3,518,282.00 292,146.420 LINK | 1.7954% |
15 | OKX | LINK-USDT | $12.06 0.0046027 Eth | $2,959,534.00 246,089.943 LINK | 1.5124% |
16 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.07 0.0046064 Eth | $2,690,611.00 223,274.866 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.3721% |
17 | DigiFinex | LINK-USDT | $12.07 0.0046073 Eth | $2,632,858.00 218,136.200 LINK | 1.3406% |
18 | KuCoin | LINK-USDT | $12.06 0.0046036 Eth | $2,326,610.00 192,920.041 LINK | 1.1856% |
19 | Deepcoin | LINK-USDT | $12.07 0.0046070 Eth | $2,151,123.00 186,938.220 LINK | 1.1488% |
20 | Crypto.com Exchange | LINK-USDT | $12.05 0.0046017 Eth | $2,076,458.00 172,249.100 LINK | 1.0586% |
21 | XT.COM | LINK-USDT | $12.07 0.0046068 Eth | $1,921,933.00 159,808.860 LINK | 0.9821% |
22 | Upbit | LINK-KRW | $12.08 0.0046115 Eth | $1,810,914.00 149,903.039 LINK | 0.9212% |
23 | Trubit | LINK-USDT | $12.09 0.0046140 Eth | $1,800,482.00 149,294.360 LINK | 0.9175% |
24 | AscendEX (BitMax) | LINK-USDT | $12.08 0.0046111 Eth | $1,721,634.00 142,523.000 LINK | 0.8759% |
25 | Gate.io | LINK-USDT | $12.06 0.0046022 Eth | $1,573,835.00 131,092.530 LINK | 0.8056% |
26 | CoinW | LINK-USDT | $12.08 0.0046102 Eth | $1,536,937.00 127,230.250 LINK | 0.7819% |
27 | C-Patex | LINK-USDT | $12.07 0.0046061 Eth | $1,496,173.00 123,963.459 LINK | 0.7618% |
28 | Kraken | LINK-USD | $12.05 0.0046014 Eth | $1,486,550.00 123,322.128 LINK | 0.7579% |
29 | WhiteBIT | LINK-BTC | $12.06 0.0046024 Eth | $1,417,658.00 117,596.070 LINK | 0.7227% |
30 | HashKey Global | LINK-USDT | $12.08 0.0046102 Eth | $1,355,058.00 112,171.008 LINK | 0.6894% |
31 | BYDFi | LINK-USDT | $12.09 0.0046076 Eth | $1,001,914.00 82,875.760 LINK | 0.5093% |
32 | Bitexen | LINK-TRY | $12.08 0.0046066 Eth | $993,195.00 82,214.520 LINK | 0.5053% |
33 | Bitexen | LINK-USDT | $12.08 0.0046055 Eth | $964,388.00 79,849.370 LINK | 0.4907% |
34 | Azbit | LINK-ETH | $12.10 0.0046141 Eth | $941,260.00 78,027.829 LINK | 0.4795% |
35 | FMCPAY | LINK-USDT | $12.07 0.0046027 Eth | $925,362.00 76,878.022 LINK | 0.4725% |
36 | Bitvavo | LINK-EUR | $12.07 0.0046074 Eth | $742,447.00 61,497.358 LINK | 0.3779% |
37 | Dex-Trade | LINK-USDT | $12.07 0.0046068 Eth | $696,444.00 57,690.710 LINK | 0.3545% |
38 | Bithumb | LINK-KRW | $12.10 0.0046162 Eth | $626,597.00 51,803.207 LINK | 0.3184% |
39 | CoinEx | LINK-USDT | $12.08 0.0046093 Eth | $564,259.00 46,618.406 LINK | 0.2865% |
40 | FMCPAY | LINK-BTC | $12.08 0.0046064 Eth | $551,540.00 45,815.700 LINK | 0.2816% |
41 | tanX | LINK-USDC | $12.14 0.0046175 Eth | $522,011.00 43,338.820 LINK | 0.2663% |
42 | BigONE | LINK-USDT | $12.08 0.0046113 Eth | $507,266.00 41,981.720 LINK | 0.2580% |
43 | FMCPAY | LINK-ETH | $12.08 0.0046073 Eth | $498,447.00 41,284.480 LINK | 0.2537% |
44 | Bybit | LINK-USDC | $12.08 0.0046125 Eth | $490,737.00 40,737.965 LINK | 0.2504% |
45 | Bybit | LINK-EUR | $12.10 0.0046192 Eth | $464,989.00 37,978.110 LINK | 0.2334% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.09 0.0046130 Eth | $422,753.00 35,238.130 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2166% |
47 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.02 0.0045883 Eth | $419,635.00 34,972.121 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2149% |
48 | WhiteBIT | LINK-EUR | $12.02 0.0045901 Eth | $401,768.00 33,416.010 LINK | 0.2054% |
49 | PointPay | LINK-USDT | $12.08 0.0046100 Eth | $344,128.00 28,593.231 LINK | 0.1757% |
50 | Gemini | LINK-USD | $12.08 0.0046116 Eth | $304,329.00 25,184.277 LINK | 0.1548% |
51 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.07 0.0046073 Eth | $282,063.00 23,402.388 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1438% |
52 | EXMO | LINK-USDT | $12.08 0.0046116 Eth | $273,409.00 22,625.928 LINK | 0.1390% |
53 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.09 0.0046139 Eth | $263,893.00 21,904.201 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1346% |
54 | Phemex | LINK-USDT | $12.09 0.0046101 Eth | $235,179.00 19,453.360 LINK | 0.1196% |
55 | BitMart | LINK-BTC | $12.09 0.0046093 Eth | $184,777.00 15,288.200 LINK | 0.0940% |
56 | LATOKEN | LINK-BTC | $12.09 0.0046133 Eth | $151,785.00 12,556.303 LINK | 0.0772% |
57 | BitDelta | LINK-USDT | $12.06 0.0046029 Eth | $140,928.00 11,709.000 LINK | 0.0720% |
58 | Binance | LINK-TRY | $12.09 0.0046100 Eth | $131,579.00 10,900.870 LINK | 0.0670% |
59 | Bitbank | LINK-JPY | $12.13 0.0046309 Eth | $125,919.00 10,376.929 LINK | 0.0638% |
60 | BYDFi | LINK-USDC | $12.08 0.0046109 Eth | $117,468.00 9,720.590 LINK | 0.0597% |
61 | Bitci TR | LINK-TRY | $12.16 0.0046409 Eth | $117,177.00 9,702.540 LINK | 0.0596% |
62 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $12.07 0.0046077 Eth | $109,998.00 9,113.228 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0560% |
63 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.08 0.0046087 Eth | $76,037.00 6,350.239 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0390% |
64 | Slex | LINK-BTC | $12.10 0.0046153 Eth | $70,817.00 5,873.300 LINK | 0.0361% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.07 0.0046059 Eth | $66,552.00 66,303.311 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.4075% |
66 | WhiteBIT | LINK-TRY | $12.08 0.0046108 Eth | $64,800.00 5,365.330 LINK | 0.0330% |
67 | Slex | LINK-ETH | $12.08 0.0046115 Eth | $62,944.00 5,220.820 LINK | 0.0321% |
68 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.02 0.0045893 Eth | $61,829.00 61,570.280 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3784% |
69 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.07 0.0046089 Eth | $58,625.00 4,854.129 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0298% |
70 | GMO Japan | LINK-JPY | $12.18 0.0046496 Eth | $42,775.00 3,510.700 LINK | 0.0216% |
71 | OKX | LINK-USDC | $12.10 0.0046183 Eth | $42,395.00 3,539.385 LINK | 0.0218% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.07 0.0046059 Eth | $39,329.00 3,275.789 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0201% |
73 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.09 0.0046139 Eth | $27,316.00 27,162.906 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1669% |
74 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $12.04 0.0045962 Eth | $26,661.00 2,234.078 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0137% |
75 | Bitso | LINK-USD | $12.11 0.0046221 Eth | $23,857.00 1,969.722 LINK | 0.0121% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.07 0.0046076 Eth | $23,348.00 1,938.842 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0119% |
77 | EXMO | LINK-BTC | $12.08 0.0046085 Eth | $20,177.00 1,670.899 LINK | 0.0103% |
78 | Mercado Bitcoin | LINK-BRL | $12.15 0.0046388 Eth | $20,076.00 1,652.118 LINK | 0.0102% |
79 | Binance US | LINK-USDT | $12.08 0.0046113 Eth | $19,853.22 1,643.471 LINK | 0.0101% |
80 | BTCMarkets | LINK-AUD | $12.15 0.0046378 Eth | $18,486.26 1,521.188 LINK | 0.0093% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.07 0.0046079 Eth | $18,182.83 1,515.662 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0093% |
82 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $12.15 0.0046386 Eth | $15,029.25 1,238.788 0X5947BB275C521040051D82396192181B413227A3 | 0.0076% |
83 | KuCoin | LINK-KCS | $12.09 0.0046153 Eth | $12,674.03 1,048.256 LINK | 0.0064% |
84 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.10 0.0046186 Eth | $12,161.98 1,012.146 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0062% |
85 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $12.04 0.0045932 Eth | $10,937.79 913.404 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0056% |
86 | Coinone | LINK-KRW | $12.13 0.0046306 Eth | $8,864.40 730.567 LINK | 0.0045% |
87 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $12.14 0.0046331 Eth | $8,609.44 13.632 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
88 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.02 0.0045883 Eth | $6,495.47 6,451.881 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0397% |
89 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $12.08 0.0046099 Eth | $5,773.30 472.031 0X5947BB275C521040051D82396192181B413227A3 | 0.0029% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $12.13 0.0046214 Eth | $5,760.27 503.038 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0031% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $12.10 0.0046157 Eth | $5,713.92 474.691 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0029% |
92 | Ramses V2 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.05 0.0045999 Eth | $4,964.35 414.113 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0025% |
93 | CoinEx | LINK-USDC | $12.11 0.0046222 Eth | $4,509.29 374.680 LINK | 0.0023% |
94 | CoinEx | LINK-BTC | $12.03 0.0045913 Eth | $2,190.00 182.303 LINK | 0.0011% |
95 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.10 0.0046171 Eth | $1,990.43 165.605 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0010% |
96 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.10 0.0046162 Eth | $1,584.91 131.974 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0008% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $12.09 0.0046121 Eth | $1,577.29 131.148 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0008% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $12.17 0.0046363 Eth | $649.13 52.908 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0003% |
99 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.09 0.0046041 Eth | $484.68 479.145 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0029% |
100 | Solidly V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.11 0.0046198 Eth | $274.88 22.839 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 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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