ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,390 ( 0.002%)
Market
Price
$10.79 @ 0.004367 ETH (-1.89%)
Onchain Market Cap
$10,790,000,000.00
Circulating Supply Market Cap
$6,762,063,563.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
85.90071 LINKValue
$926.87 ( ~0.375331528622679 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $10.80 0.0043663 Eth | $28,730,162.00 2,664,259.230 LINK | 14.4619% |
2 | WhiteBIT | LINK-USDT | $10.78 0.0043599 Eth | $27,220,728.00 2,525,674.520 LINK | 13.7097% |
3 | HTX | LINK-USDT | $10.78 0.0043610 Eth | $11,146,810.00 1,032,782.081 LINK | 5.6061% |
4 | Bitget | LINK-USDT | $10.78 0.0043611 Eth | $9,484,619.00 878,966.301 LINK | 4.7711% |
5 | Bybit | LINK-USDT | $10.77 0.0043569 Eth | $7,814,639.00 725,537.809 LINK | 3.9383% |
6 | Coinbase Exchange | LINK-USD | $10.78 0.0043589 Eth | $7,347,687.00 681,919.950 LINK | 3.7015% |
7 | OKX | LINK-USDT | $10.77 0.0043583 Eth | $6,703,099.00 622,568.436 LINK | 3.3794% |
8 | BTSE | LINK-USDT | $10.78 0.0043606 Eth | $6,475,659.00 600,745.343 LINK | 3.2609% |
9 | P2B | LINK-USDT | $10.78 0.0043620 Eth | $5,978,497.00 554,477.330 LINK | 3.0098% |
10 | WEEX | LINK-USDT | $10.81 0.0043700 Eth | $5,851,803.00 543,384.210 LINK | 2.9496% |
11 | Slex | LINK-USDT | $10.79 0.0043653 Eth | $5,748,021.00 532,179.860 LINK | 2.8887% |
12 | Ourbit | LINK-USDT | $10.77 0.0043570 Eth | $5,261,382.00 488,268.050 LINK | 2.6504% |
13 | Azbit | LINK-USDT | $10.77 0.0043604 Eth | $5,199,280.00 481,226.730 LINK | 2.6122% |
14 | Gate.io | LINK-USDT | $10.77 0.0043583 Eth | $5,027,445.00 469,893.530 LINK | 2.5506% |
15 | BVOX | LINK-USDT | $10.82 0.0043702 Eth | $4,608,689.00 426,074.510 LINK | 2.3128% |
16 | DigiFinex | LINK-USDT | $10.78 0.0043614 Eth | $4,032,686.00 374,116.450 LINK | 2.0307% |
17 | Biconomy.com | LINK-USDT | $10.78 0.0043603 Eth | $3,802,422.00 352,243.340 LINK | 1.9120% |
18 | Binance | LINK-ETH | $10.78 0.0043620 Eth | $3,362,832.00 304,075.560 LINK | 1.6506% |
19 | Bitunix | LINK-USDT | $10.78 0.0043600 Eth | $3,300,237.00 306,081.370 LINK | 1.6614% |
20 | CoinW | LINK-USDT | $10.78 0.0043606 Eth | $2,949,254.00 273,585.350 LINK | 1.4851% |
21 | XT.COM | LINK-USDT | $10.78 0.0043623 Eth | $2,855,533.00 264,819.230 LINK | 1.4375% |
22 | ProBit Global | LINK-USDT | $10.78 0.0043600 Eth | $2,621,415.00 243,225.380 LINK | 1.3203% |
23 | Hotcoin | LINK-USDT | $10.78 0.0043637 Eth | $2,463,074.00 228,416.020 LINK | 1.2399% |
24 | KuCoin | LINK-USDT | $10.78 0.0043611 Eth | $2,303,955.00 213,714.667 LINK | 1.1601% |
25 | Trubit | LINK-USDT | $10.78 0.0043602 Eth | $2,286,222.00 212,140.220 LINK | 1.1515% |
26 | LBank | LINK-USDT | $10.77 0.0043577 Eth | $2,082,554.00 193,323.950 LINK | 1.0494% |
27 | Coinstore | LINK-USDT | $10.76 0.0043538 Eth | $2,070,149.00 192,062.120 LINK | 1.0425% |
28 | AscendEX (BitMax) | LINK-USDT | $10.75 0.0043512 Eth | $1,691,573.00 157,297.100 LINK | 0.8538% |
29 | BYDFi | LINK-USDT | $10.77 0.0043577 Eth | $1,410,826.00 130,956.690 LINK | 0.7108% |
30 | WhiteBIT | LINK-BTC | $10.78 0.0043596 Eth | $1,051,496.00 97,570.120 LINK | 0.5296% |
31 | Nonkyc.io | LINK-USDT | $10.81 0.0043751 Eth | $995,115.00 92,745.847 LINK | 0.5034% |
32 | Dex-Trade | LINK-USDT | $10.77 0.0043582 Eth | $959,321.00 89,046.010 LINK | 0.4834% |
33 | XT.COM | LINK-ETH | $10.78 0.0043621 Eth | $941,524.00 85,142.200 LINK | 0.4622% |
34 | Azbit | LINK-ETH | $10.79 0.0043670 Eth | $932,118.00 85,507.744 LINK | 0.4641% |
35 | HashKey Global | LINK-USDT | $10.78 0.0043609 Eth | $883,914.00 80,409.934 LINK | 0.4365% |
36 | Bitvavo | LINK-EUR | $10.79 0.0043660 Eth | $754,464.00 69,917.143 LINK | 0.3795% |
37 | AscendEX (BitMax) | LINK-BTC | $10.84 0.0043859 Eth | $587,793.00 54,225.500 LINK | 0.2943% |
38 | LATOKEN | LINK-USDT | $10.79 0.0043663 Eth | $566,475.00 52,492.851 LINK | 0.2849% |
39 | EXMO | LINK-USDT | $10.76 0.0043556 Eth | $566,100.00 52,587.725 LINK | 0.2855% |
40 | BitStorage | LINK-ETH | $10.79 0.0043639 Eth | $492,539.00 45,658.960 LINK | 0.2478% |
41 | PointPay | LINK-USDT | $10.78 0.0043624 Eth | $482,132.00 44,708.876 LINK | 0.2427% |
42 | CoinEx | LINK-USDT | $10.82 0.0043731 Eth | $444,924.00 41,212.173 LINK | 0.2237% |
43 | BigONE | LINK-USDT | $10.74 0.0043409 Eth | $423,285.00 39,409.400 LINK | 0.2139% |
44 | itBit | LINK-USD | $10.81 0.0043698 Eth | $416,496.00 38,528.738 LINK | 0.2091% |
45 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.85 0.0043896 Eth | $413,345.00 38,046.397 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2065% |
46 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.77 0.0043585 Eth | $372,847.00 34,371.132 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1866% |
47 | Bybit | LINK-USDC | $10.78 0.0043604 Eth | $368,530.00 34,258.955 LINK | 0.1860% |
48 | Hotcoin | LINK-ETH | $10.79 0.0043641 Eth | $363,898.00 33,738.720 LINK | 0.1831% |
49 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.79 0.0043658 Eth | $353,472.00 32,245.779 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1750% |
50 | EarnBIT | LINK-USDT | $10.78 0.0043587 Eth | $317,524.00 29,469.035 LINK | 0.1600% |
51 | WhiteBIT | LINK-EUR | $10.84 0.0043862 Eth | $310,766.00 28,661.300 LINK | 0.1556% |
52 | Phemex | LINK-USDT | $10.77 0.0043601 Eth | $292,087.00 27,112.500 LINK | 0.1472% |
53 | ProBit Global | LINK-BTC | $10.78 0.0043608 Eth | $270,794.00 25,120.356 LINK | 0.1364% |
54 | LATOKEN | LINK-BTC | $10.79 0.0043638 Eth | $267,876.00 24,837.341 LINK | 0.1348% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.77 0.0043593 Eth | $266,126.00 24,573.402 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1334% |
56 | Slex | LINK-ETH | $10.80 0.0043680 Eth | $199,094.00 18,275.790 LINK | 0.0992% |
57 | BitMart | LINK-BTC | $10.78 0.0043592 Eth | $194,829.00 18,079.260 LINK | 0.0981% |
58 | Coinbase Exchange | LINK-EUR | $10.80 0.0043697 Eth | $162,517.00 15,048.170 LINK | 0.0817% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.79 0.0043673 Eth | $160,969.00 14,908.422 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0809% |
60 | Bitbank | LINK-JPY | $10.81 0.0043755 Eth | $148,983.00 13,776.558 LINK | 0.0748% |
61 | BitDelta | LINK-USDT | $10.78 0.0043619 Eth | $145,412.00 13,487.000 LINK | 0.0732% |
62 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $10.78 0.0043596 Eth | $134,262.00 12,528.302 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0680% |
63 | Coinbase Exchange | LINK-GBP | $10.79 0.0043674 Eth | $125,132.00 11,592.660 LINK | 0.0629% |
64 | BYDFi | LINK-USDC | $10.80 0.0043660 Eth | $116,221.00 10,764.090 LINK | 0.0584% |
65 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.81 0.0043749 Eth | $112,898.00 10,393.710 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0564% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.77 0.0043581 Eth | $112,146.00 111,922.464 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.6075% |
67 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.77 0.0043579 Eth | $88,498.00 88,126.201 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4784% |
68 | OKX | LINK-USDC | $10.77 0.0043583 Eth | $86,237.00 8,020.128 LINK | 0.0435% |
69 | Slex | LINK-BTC | $10.77 0.0043577 Eth | $77,715.00 7,132.100 LINK | 0.0387% |
70 | GMO Japan | LINK-JPY | $10.85 0.0043889 Eth | $71,093.00 6,552.600 LINK | 0.0356% |
71 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.77 0.0043585 Eth | $52,315.00 4,895.603 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0266% |
72 | PointPay | LINK-BTC | $10.78 0.0043604 Eth | $52,033.00 4,778.758 LINK | 0.0259% |
73 | KuCoin | LINK-BTC | $10.78 0.0043600 Eth | $49,106.00 4,556.174 LINK | 0.0247% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.77 0.0043581 Eth | $44,282.00 4,122.170 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0224% |
75 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $10.76 0.0043528 Eth | $35,287.00 3,249.201 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0176% |
76 | KuCoin | LINK-USDC | $10.79 0.0043658 Eth | $28,956.00 2,683.071 LINK | 0.0146% |
77 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.78 0.0043598 Eth | $26,284.00 26,285.562 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1427% |
78 | EXMO | LINK-BTC | $10.85 0.0043887 Eth | $21,707.00 2,001.244 LINK | 0.0109% |
79 | Bitso | LINK-USD | $10.81 0.0043728 Eth | $21,703.00 2,007.826 LINK | 0.0109% |
80 | Binance US | LINK-USDT | $10.79 0.0043600 Eth | $21,446.00 1,987.675 LINK | 0.0108% |
81 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.78 0.0043615 Eth | $19,929.29 1,833.172 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0100% |
82 | Coinbase Exchange | LINK-ETH | $10.79 0.0043660 Eth | $19,205.68 1,779.830 LINK | 0.0097% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.78 0.0043604 Eth | $19,158.48 1,762.256 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0096% |
84 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $10.78 0.0043608 Eth | $16,948.84 1,561.683 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0085% |
85 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.77 0.0043585 Eth | $15,987.06 15,872.241 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0862% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.77 0.0043565 Eth | $15,305.62 1,421.962 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0077% |
87 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.85 0.0043893 Eth | $9,719.41 887.297 0X5947BB275C521040051D82396192181B413227A3 | 0.0048% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.77 0.0043581 Eth | $8,806.13 820.151 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0045% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $10.87 0.0043931 Eth | $8,383.41 762.427 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0041% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.80 0.0043703 Eth | $5,890.31 548.949 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0030% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $10.77 0.0043581 Eth | $5,522.36 508.800 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0028% |
92 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $10.84 0.0043866 Eth | $5,319.06 486.258 0X5947BB275C521040051D82396192181B413227A3 | 0.0026% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $10.77 0.0043582 Eth | $4,370.56 405.957 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0022% |
94 | CoinEx | LINK-USDC | $10.82 0.0043761 Eth | $2,415.27 222.827 LINK | 0.0012% |
95 | KuCoin | LINK-KCS | $10.80 0.0043674 Eth | $2,320.38 214.927 LINK | 0.0012% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $10.83 0.0043816 Eth | $808.13 75.316 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0004% |
97 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.81 0.0043761 Eth | $403.16 31.471 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $10.80 0.0043687 Eth | $400.02 37.125 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0002% |
99 | Uniswap V3 (Arbitrum One) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.77 0.0043584 Eth | $257.76 539.611 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0029% |
100 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $10.79 0.0043665 Eth | $176.60 16.504 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 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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