ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
727,240 ( 0.015%)
Market
Price
$24.59 @ 0.007084 ETH (-1.60%)
Onchain Market Cap
$24,590,000,000.00
Circulating Supply Market Cap
$15,542,296,343.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.286510767802980602 LINKValue
$7.05 ( ~0.00203094213170031 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.52 0.0070532 Eth | $141,234,354.00 5,653,992.680 LINK | 23.3511% |
2 | WhiteBIT | LINK-USDT | $24.56 0.0070588 Eth | $46,930,203.00 1,911,137.820 LINK | 7.8931% |
3 | Coinbase Exchange | LINK-USD | $24.49 0.0070428 Eth | $39,125,282.00 1,597,732.830 LINK | 6.5987% |
4 | Bybit | LINK-USDT | $24.50 0.0070488 Eth | $33,581,045.00 1,342,512.580 LINK | 5.5446% |
5 | P2B | LINK-USDT | $24.61 0.0070711 Eth | $29,467,558.00 1,197,490.260 LINK | 4.9457% |
6 | CoinW | LINK-USDT | $24.45 0.0070427 Eth | $27,378,447.00 1,119,566.610 LINK | 4.6238% |
7 | Slex | LINK-USDT | $24.55 0.0070599 Eth | $25,438,779.00 1,022,526.890 LINK | 4.2231% |
8 | OKX | LINK-USDT | $24.45 0.0070349 Eth | $23,125,503.00 925,355.795 LINK | 3.8217% |
9 | DigiFinex | LINK-USDT | $24.47 0.0070410 Eth | $17,892,874.00 731,137.900 LINK | 3.0196% |
10 | XT.COM | LINK-USDT | $24.49 0.0070461 Eth | $15,178,350.00 606,935.030 LINK | 2.5067% |
11 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.51 0.0070510 Eth | $14,942,370.00 596,432.506 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.4633% |
12 | FameEX | LINK-USDT | $24.53 0.0070543 Eth | $14,423,431.00 577,342.490 LINK | 2.3844% |
13 | Azbit | LINK-USDT | $24.54 0.0070553 Eth | $14,101,301.00 564,755.234 LINK | 2.3325% |
14 | Coinstore | LINK-USDT | $24.57 0.0070627 Eth | $12,370,740.00 495,681.320 LINK | 2.0472% |
15 | HTX | LINK-USDT | $24.52 0.0070521 Eth | $11,543,499.00 464,092.946 LINK | 1.9167% |
16 | Bitunix | LINK-USDT | $24.58 0.0070598 Eth | $11,166,896.00 454,347.220 LINK | 1.8765% |
17 | Binance | LINK-FDUSD | $24.51 0.0070529 Eth | $8,770,693.00 350,874.510 LINK | 1.4491% |
18 | BYDFi | LINK-USDT | $24.50 0.0070473 Eth | $8,247,307.00 336,572.720 LINK | 1.3901% |
19 | Biconomy.com | LINK-USDT | $24.56 0.0070609 Eth | $7,882,076.00 316,282.950 LINK | 1.3063% |
20 | LATOKEN | LINK-USDT | $24.52 0.0070531 Eth | $6,704,525.00 273,388.779 LINK | 1.1291% |
21 | Kraken | LINK-USD | $24.52 0.0070616 Eth | $6,240,500.00 254,504.559 LINK | 1.0511% |
22 | QMall | LINK-USDT | $24.56 0.0070649 Eth | $5,640,541.00 225,722.392 LINK | 0.9322% |
23 | KuCoin | LINK-USDT | $24.51 0.0070500 Eth | $5,362,024.00 218,742.178 LINK | 0.9034% |
24 | Dex-Trade | LINK-USDT | $24.55 0.0070599 Eth | $4,621,273.00 188,246.930 LINK | 0.7775% |
25 | Coinbase Exchange | LINK-GBP | $24.59 0.0070633 Eth | $4,530,904.00 184,292.140 LINK | 0.7611% |
26 | Hotcoin | LINK-USDT | $24.54 0.0070570 Eth | $3,612,189.00 147,201.960 LINK | 0.6079% |
27 | Bitvavo | LINK-EUR | $24.69 0.0071060 Eth | $3,035,615.00 122,959.934 LINK | 0.5078% |
28 | Dcoin | LINK-USDT | $24.60 0.0070708 Eth | $2,751,266.00 111,853.000 LINK | 0.4620% |
29 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.63 0.0070822 Eth | $2,501,217.00 99,372.614 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4104% |
30 | EXMO | LINK-USDT | $24.53 0.0070548 Eth | $2,269,178.00 92,516.640 LINK | 0.3821% |
31 | CoinEx | LINK-USDT | $24.55 0.0070585 Eth | $2,048,359.00 81,987.424 LINK | 0.3386% |
32 | PointPay | LINK-USDT | $24.55 0.0070598 Eth | $2,047,910.00 82,188.215 LINK | 0.3394% |
33 | Coinbase Exchange | LINK-EUR | $24.69 0.0070990 Eth | $1,747,855.00 70,801.050 LINK | 0.2924% |
34 | WhiteBIT | LINK-BTC | $24.53 0.0070551 Eth | $1,614,530.00 65,813.240 LINK | 0.2718% |
35 | WhiteBIT | LINK-TRY | $24.68 0.0070981 Eth | $1,606,411.00 65,085.270 LINK | 0.2688% |
36 | Phemex | LINK-USDT | $24.47 0.0070373 Eth | $1,472,732.00 60,188.110 LINK | 0.2486% |
37 | Bitstamp | LINK-USD | $24.50 0.0070488 Eth | $1,302,531.00 53,164.528 LINK | 0.2196% |
38 | tanX | LINK-USDC | $24.57 0.0070656 Eth | $1,239,125.00 49,718.360 LINK | 0.2053% |
39 | Bitstamp | LINK-EUR | $24.70 0.0071056 Eth | $1,169,662.00 47,359.925 LINK | 0.1956% |
40 | BitStorage | LINK-USDT | $24.56 0.0070627 Eth | $1,123,949.00 45,765.280 LINK | 0.1890% |
41 | EarnBIT | LINK-USDT | $24.52 0.0070511 Eth | $1,090,839.00 43,682.058 LINK | 0.1804% |
42 | Bitbank | LINK-JPY | $24.60 0.0070754 Eth | $1,018,022.00 41,383.763 LINK | 0.1709% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.69 0.0070997 Eth | $935,329.00 37,162.864 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1535% |
44 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.66 0.0070925 Eth | $846,723.00 33,707.364 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1392% |
45 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.57 0.0070658 Eth | $744,895.00 30,011.239 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1239% |
46 | Coinbase Exchange | LINK-ETH | $24.57 0.0070684 Eth | $727,397.00 29,599.680 LINK | 0.1222% |
47 | Coinbase Exchange | LINK-USDT | $24.66 0.0070910 Eth | $700,538.00 28,410.040 LINK | 0.1173% |
48 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.52 0.0070534 Eth | $661,298.00 26,435.518 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1092% |
49 | WhiteBIT | LINK-EUR | $24.64 0.0070853 Eth | $594,454.00 24,129.800 LINK | 0.0997% |
50 | BigONE | LINK-USDT | $24.62 0.0070808 Eth | $580,540.00 23,578.280 LINK | 0.0974% |
51 | HashKey Exchange | LINK-USD | $24.61 0.0070675 Eth | $533,320.00 21,365.700 LINK | 0.0882% |
52 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.54 0.0070592 Eth | $519,088.00 37,122.015 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1533% |
53 | Gemini | LINK-USD | $24.56 0.0070654 Eth | $472,525.00 19,241.506 LINK | 0.0795% |
54 | Slex | LINK-ETH | $24.58 0.0070633 Eth | $441,595.00 17,762.920 LINK | 0.0734% |
55 | KuCoin | LINK-USDC | $24.52 0.0070515 Eth | $440,761.00 17,976.840 LINK | 0.0742% |
56 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.62 0.0070795 Eth | $437,540.00 17,382.816 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0718% |
57 | GMO Japan | LINK-JPY | $24.62 0.0070801 Eth | $419,538.00 17,041.100 LINK | 0.0704% |
58 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.65 0.0070886 Eth | $414,485.00 16,484.618 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0681% |
59 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.69 0.0070997 Eth | $392,928.00 397,816.506 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.6430% |
60 | BitMart | LINK-BTC | $24.55 0.0070619 Eth | $357,112.00 14,544.720 LINK | 0.0601% |
61 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.60 0.0070668 Eth | $338,073.00 13,529.579 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0559% |
62 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.63 0.0070822 Eth | $329,679.00 335,403.536 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 1.3852% |
63 | Coinbase Exchange | LINK-BTC | $24.54 0.0070586 Eth | $307,570.00 12,531.130 LINK | 0.0518% |
64 | BitDelta | LINK-USDT | $24.52 0.0070516 Eth | $305,398.00 12,261.000 LINK | 0.0506% |
65 | LATOKEN | LINK-BTC | $24.58 0.0070654 Eth | $233,905.00 9,516.426 LINK | 0.0393% |
66 | Bitkub | LINK-THB | $24.69 0.0071008 Eth | $233,152.00 9,442.665 LINK | 0.0390% |
67 | Binance US | LINK-USDT | $24.62 0.0070814 Eth | $225,458.00 9,157.313 LINK | 0.0378% |
68 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.58 0.0070677 Eth | $204,375.00 8,170.533 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0337% |
69 | BitMart | LINK-ETH | $24.57 0.0070663 Eth | $192,373.00 7,829.340 LINK | 0.0323% |
70 | BitStorage | LINK-ETH | $24.58 0.0070679 Eth | $192,006.00 7,812.450 LINK | 0.0323% |
71 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.70 0.0071039 Eth | $190,940.00 7,712.687 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0319% |
72 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.66 0.0070946 Eth | $176,537.00 7,059.007 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0292% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.45 0.0070318 Eth | $172,789.00 6,960.132 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0287% |
74 | BTCMarkets | LINK-AUD | $24.55 0.0070485 Eth | $171,508.00 6,987.111 LINK | 0.0289% |
75 | PointPay | LINK-BTC | $24.55 0.0070617 Eth | $142,005.00 5,651.489 LINK | 0.0233% |
76 | Hotcoin | LINK-BTC | $24.59 0.0070654 Eth | $124,557.00 5,064.790 LINK | 0.0209% |
77 | Kanga | LINK-PLN | $24.68 0.0070966 Eth | $124,338.00 0.000 LINK | 0.0000% |
78 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.61 0.0070781 Eth | $124,177.00 4,930.116 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0204% |
79 | Kraken | LINK-GBP | $24.56 0.0070738 Eth | $124,049.00 5,050.345 LINK | 0.0209% |
80 | Bitso | LINK-USD | $24.60 0.0070747 Eth | $100,472.00 4,083.497 LINK | 0.0169% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.69 0.0070997 Eth | $94,777.00 3,789.899 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0157% |
82 | KuCoin | LINK-BTC | $24.53 0.0070543 Eth | $93,888.00 3,827.790 LINK | 0.0158% |
83 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.56 0.0070634 Eth | $76,954.00 3,063.343 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0127% |
84 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.64 0.0070903 Eth | $58,198.00 2,333.851 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0096% |
85 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.79 0.0071294 Eth | $58,124.00 2,282.883 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0094% |
86 | Bitexen | LINK-TRY | $24.47 0.0070311 Eth | $57,646.00 2,355.646 LINK | 0.0097% |
87 | Nonkyc.io | LINK-BTC | $24.62 0.0070816 Eth | $47,811.00 1,904.305 LINK | 0.0079% |
88 | Mercado Bitcoin | LINK-BRL | $24.41 0.0070197 Eth | $47,771.00 1,957.344 LINK | 0.0081% |
89 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $24.63 0.0070860 Eth | $46,435.00 61.771 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0003% |
90 | Hotcoin | LINK-ETH | $24.56 0.0070629 Eth | $42,638.00 1,736.210 LINK | 0.0072% |
91 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.56 0.0070653 Eth | $38,378.00 2,741.980 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0113% |
92 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.67 0.0070989 Eth | $35,653.00 1,439.470 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0059% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $24.69 0.0070995 Eth | $34,772.00 1,414.749 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0058% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.60 0.0070724 Eth | $22,121.00 879.646 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0036% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $24.60 0.0070741 Eth | $18,907.62 748.033 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0031% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.70 0.0071013 Eth | $18,418.90 729.634 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0030% |
97 | Gemini | LINK-BTC | $24.56 0.0070670 Eth | $18,266.16 743.640 LINK | 0.0031% |
98 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.50 0.0070489 Eth | $16,257.68 660.684 0X5947BB275C521040051D82396192181B413227A3 | 0.0027% |
99 | KuCoin | LINK-KCS | $24.76 0.0071214 Eth | $9,495.39 383.474 LINK | 0.0016% |
100 | Ace | LINK-USDT | $24.56 0.0070634 Eth | $5,511.60 220.830 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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