ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,390 ( 0.009%)
Market
Price
$21.34 @ 0.006380 ETH (-6.12%)
Onchain Market Cap
$21,340,000,000.00
Circulating Supply Market Cap
$13,465,840,180.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.000000639457371712 LINKValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $21.37 0.0063836 Eth | $112,406,990.00 5,030,757.800 LINK | 21.6928% |
2 | Coinbase Exchange | LINK-USD | $21.35 0.0063795 Eth | $43,224,650.00 2,024,289.310 LINK | 8.7288% |
3 | Bitget | LINK-USDT | $21.36 0.0063802 Eth | $37,850,982.00 1,707,792.008 LINK | 7.3641% |
4 | Bybit | LINK-USDT | $21.34 0.0063768 Eth | $32,736,161.00 1,479,091.452 LINK | 6.3779% |
5 | OKX | LINK-USDT | $21.35 0.0063773 Eth | $22,574,525.00 1,011,287.028 LINK | 4.3607% |
6 | P2B | LINK-USDT | $21.36 0.0063806 Eth | $21,565,201.00 1,009,761.960 LINK | 4.3541% |
7 | CoinW | LINK-USDT | $21.38 0.0063911 Eth | $19,060,310.00 891,703.370 LINK | 3.8451% |
8 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.43 0.0064056 Eth | $16,724,396.00 750,485.550 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 3.2361% |
9 | DigiFinex | LINK-USDT | $21.36 0.0063818 Eth | $14,468,228.00 677,328.890 LINK | 2.9207% |
10 | Azbit | LINK-USDT | $21.34 0.0063817 Eth | $11,179,988.00 500,438.918 LINK | 2.1579% |
11 | XT.COM | LINK-USDT | $21.35 0.0063818 Eth | $11,173,913.00 500,282.570 LINK | 2.1572% |
12 | HTX | LINK-USDT | $21.36 0.0063808 Eth | $11,040,224.00 494,591.277 LINK | 2.1327% |
13 | Coinstore | LINK-USDT | $21.34 0.0063810 Eth | $9,974,154.00 447,145.090 LINK | 1.9281% |
14 | Bitunix | LINK-USDT | $21.38 0.0063923 Eth | $9,004,646.00 421,051.540 LINK | 1.8156% |
15 | Biconomy.com | LINK-USDT | $21.35 0.0063852 Eth | $7,463,584.00 334,322.262 LINK | 1.4416% |
16 | BYDFi | LINK-USDT | $21.39 0.0064020 Eth | $7,020,694.00 328,251.520 LINK | 1.4154% |
17 | BTSE | LINK-USDT | $21.35 0.0063772 Eth | $6,936,388.00 324,957.792 LINK | 1.4012% |
18 | Binance | LINK-FDUSD | $21.35 0.0063871 Eth | $6,426,805.00 287,757.980 LINK | 1.2408% |
19 | Hotcoin | LINK-USDT | $21.35 0.0063854 Eth | $5,389,521.00 252,437.320 LINK | 1.0885% |
20 | LATOKEN | LINK-USDT | $21.36 0.0063846 Eth | $5,376,522.00 251,761.240 LINK | 1.0856% |
21 | QMall | LINK-USDT | $21.34 0.0063816 Eth | $4,589,251.00 205,591.152 LINK | 0.8865% |
22 | LBank | LINK-USDT | $21.34 0.0063816 Eth | $4,570,759.00 214,151.460 LINK | 0.9234% |
23 | Binance | LINK-USDC | $21.37 0.0063836 Eth | $4,293,437.00 192,418.110 LINK | 0.8297% |
24 | KuCoin | LINK-USDT | $21.36 0.0063826 Eth | $3,894,875.00 182,332.311 LINK | 0.7862% |
25 | Kraken | LINK-USD | $21.36 0.0063830 Eth | $3,608,376.00 168,913.124 LINK | 0.7284% |
26 | Dex-Trade | LINK-USDT | $21.30 0.0063757 Eth | $3,565,360.00 167,411.261 LINK | 0.7219% |
27 | FMCPAY | LINK-USDT | $21.35 0.0063806 Eth | $3,424,560.00 153,360.461 LINK | 0.6613% |
28 | Bitvavo | LINK-EUR | $21.34 0.0063856 Eth | $2,938,009.00 137,663.060 LINK | 0.5936% |
29 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.37 0.0063843 Eth | $2,305,701.00 103,856.708 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4478% |
30 | Dcoin | LINK-USDT | $21.38 0.0063865 Eth | $2,297,076.00 107,457.000 LINK | 0.4634% |
31 | CoinEx | LINK-USDT | $21.38 0.0063873 Eth | $2,092,851.00 94,403.441 LINK | 0.4071% |
32 | PointPay | LINK-USDT | $21.29 0.0063748 Eth | $1,889,241.00 84,531.946 LINK | 0.3645% |
33 | Coinbase Exchange | LINK-GBP | $21.35 0.0063785 Eth | $1,812,197.00 84,891.290 LINK | 0.3661% |
34 | EXMO | LINK-USDT | $21.36 0.0063820 Eth | $1,669,406.00 78,149.905 LINK | 0.3370% |
35 | Coinbase Exchange | LINK-ETH | $21.31 0.0063719 Eth | $1,525,641.00 71,588.300 LINK | 0.3087% |
36 | FMCPAY | LINK-BTC | $21.34 0.0063776 Eth | $1,489,943.00 67,154.400 LINK | 0.2896% |
37 | FMCPAY | LINK-ETH | $21.35 0.0063837 Eth | $1,472,896.00 66,101.440 LINK | 0.2850% |
38 | Coinbase Exchange | LINK-EUR | $21.36 0.0063829 Eth | $1,433,788.00 67,119.100 LINK | 0.2894% |
39 | Bybit | LINK-USDC | $21.33 0.0063737 Eth | $1,400,979.00 63,987.136 LINK | 0.2759% |
40 | WhiteBIT | LINK-BTC | $21.34 0.0063783 Eth | $1,339,241.00 62,753.860 LINK | 0.2706% |
41 | Phemex | LINK-USDT | $21.35 0.0063853 Eth | $1,276,359.00 59,789.800 LINK | 0.2578% |
42 | Coinbase Exchange | LINK-USDT | $21.36 0.0063806 Eth | $1,230,533.00 57,618.085 LINK | 0.2485% |
43 | WhiteBIT | LINK-TRY | $21.50 0.0064279 Eth | $1,208,412.00 56,209.020 LINK | 0.2424% |
44 | EarnBIT | LINK-USDT | $21.37 0.0063885 Eth | $1,066,340.00 47,706.270 LINK | 0.2057% |
45 | tanX | LINK-USDC | $21.41 0.0064023 Eth | $1,015,497.00 45,611.780 LINK | 0.1967% |
46 | Bitbank | LINK-JPY | $21.46 0.0064157 Eth | $938,318.00 43,724.503 LINK | 0.1885% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.40 0.0063956 Eth | $916,806.00 41,054.984 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1770% |
48 | BigONE | LINK-USDT | $21.39 0.0063989 Eth | $842,487.00 39,382.280 LINK | 0.1698% |
49 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.36 0.0063850 Eth | $803,033.00 35,872.736 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1547% |
50 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.43 0.0064056 Eth | $754,749.00 58,435.248 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2520% |
51 | Gemini | LINK-USD | $21.34 0.0063766 Eth | $733,800.00 34,380.422 LINK | 0.1482% |
52 | Binance | LINK-TRY | $21.53 0.0064321 Eth | $718,854.00 31,970.740 LINK | 0.1379% |
53 | Binance | LINK-EUR | $21.37 0.0063874 Eth | $578,001.00 25,694.190 LINK | 0.1108% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.36 0.0063860 Eth | $574,914.00 25,950.375 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1119% |
55 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.39 0.0063958 Eth | $544,012.00 581,010.079 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.5053% |
56 | itBit | LINK-USD | $21.40 0.0063985 Eth | $507,073.00 23,695.005 LINK | 0.1022% |
57 | GMO Japan | LINK-JPY | $21.45 0.0064121 Eth | $497,348.00 23,189.100 LINK | 0.1000% |
58 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.39 0.0063949 Eth | $493,266.00 21,947.139 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0946% |
59 | WhiteBIT | LINK-EUR | $21.34 0.0063802 Eth | $485,688.00 22,760.660 LINK | 0.0981% |
60 | HashKey Exchange | LINK-USD | $21.40 0.0063932 Eth | $395,029.00 17,324.772 LINK | 0.0747% |
61 | Slex | LINK-ETH | $21.34 0.0063842 Eth | $385,610.00 17,340.860 LINK | 0.0748% |
62 | QMall | LINK-USDC | $21.34 0.0063870 Eth | $363,601.00 16,274.916 LINK | 0.0702% |
63 | BitMart | LINK-BTC | $21.35 0.0063830 Eth | $362,145.00 16,962.080 LINK | 0.0731% |
64 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $21.50 0.0064244 Eth | $356,897.00 15,805.253 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0682% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.39 0.0063935 Eth | $342,320.00 361,624.748 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.5593% |
66 | BitDelta | LINK-USDT | $21.36 0.0063841 Eth | $266,219.00 11,886.000 LINK | 0.0513% |
67 | OKX | LINK-USDC | $21.35 0.0063778 Eth | $266,078.00 11,905.283 LINK | 0.0513% |
68 | Bitci TR | LINK-TRY | $21.36 0.0063827 Eth | $227,456.00 10,119.580 LINK | 0.0436% |
69 | Coinbase Exchange | LINK-BTC | $21.36 0.0063848 Eth | $215,644.00 10,097.880 LINK | 0.0435% |
70 | LATOKEN | LINK-BTC | $21.38 0.0063933 Eth | $207,932.00 9,723.401 LINK | 0.0419% |
71 | BitStorage | LINK-ETH | $21.40 0.0063927 Eth | $197,999.00 9,253.470 LINK | 0.0399% |
72 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.37 0.0063896 Eth | $184,678.00 8,199.209 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0354% |
73 | Hotcoin | LINK-BTC | $21.35 0.0063842 Eth | $183,625.00 8,602.290 LINK | 0.0371% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.35 0.0063830 Eth | $160,707.00 7,229.226 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0312% |
75 | Bitso | LINK-USD | $21.26 0.0063650 Eth | $157,985.00 7,431.026 LINK | 0.0320% |
76 | BitMart | LINK-ETH | $21.39 0.0063942 Eth | $153,742.00 7,188.340 LINK | 0.0310% |
77 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.43 0.0064056 Eth | $147,640.00 6,542.998 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0282% |
78 | PointPay | LINK-BTC | $21.36 0.0063876 Eth | $142,482.00 6,463.818 LINK | 0.0279% |
79 | Bitkub | LINK-THB | $21.50 0.0064255 Eth | $137,929.00 6,415.492 LINK | 0.0277% |
80 | Kraken | LINK-GBP | $21.27 0.0063560 Eth | $108,613.00 5,105.969 LINK | 0.0220% |
81 | KuCoin | LINK-USDC | $21.40 0.0063934 Eth | $106,857.00 4,993.879 LINK | 0.0215% |
82 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $21.54 0.0064389 Eth | $105,460.00 4,722.990 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0204% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.32 0.0063728 Eth | $103,875.00 4,687.624 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0202% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $21.38 0.0063922 Eth | $98,858.00 4,388.148 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0189% |
85 | Kanga | LINK-PLN | $21.41 0.0064052 Eth | $89,556.00 0.000 LINK | 0.0000% |
86 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.37 0.0063843 Eth | $88,083.00 93,466.754 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4030% |
87 | Mercado Bitcoin | LINK-BRL | $21.50 0.0064268 Eth | $80,084.00 3,725.077 LINK | 0.0161% |
88 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.34 0.0063794 Eth | $75,258.00 3,412.200 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0147% |
89 | Uniswap V3 (Ethereum) | 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.31 0.0063696 Eth | $65,885.00 102,287.373 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23 | 0.4411% |
90 | Hotcoin | LINK-ETH | $21.28 0.0063714 Eth | $65,408.00 3,074.220 LINK | 0.0133% |
91 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $21.45 0.0064115 Eth | $63,940.00 2,844.845 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0123% |
92 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $21.51 0.0064260 Eth | $59,275.00 2,661.336 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0115% |
93 | Coins.ph | LINK-PHP | $21.55 0.0064426 Eth | $52,186.00 2,301.429 LINK | 0.0099% |
94 | Nonkyc.io | LINK-BTC | $21.28 0.0063575 Eth | $43,199.00 1,939.300 LINK | 0.0084% |
95 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $21.42 0.0064042 Eth | $39,767.00 1,768.501 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0076% |
96 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.43 0.0064056 Eth | $37,227.00 2,858.351 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0123% |
97 | Gemini | LINK-BTC | $21.42 0.0063991 Eth | $32,879.00 1,535.053 LINK | 0.0066% |
98 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $21.40 0.0063966 Eth | $29,432.00 1,335.131 0X5947BB275C521040051D82396192181B413227A3 | 0.0058% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $21.36 0.0063868 Eth | $25,123.00 1,122.246 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0048% |
100 | Bitexen | LINK-TRY | $21.31 0.0063727 Eth | $19,460.34 913.338 LINK | 0.0039% |
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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