ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
727,069 ( -0.002%)
Market
Price
$24.65 @ 0.007050 ETH (+0.52%)
Onchain Market Cap
$24,650,000,000.00
Circulating Supply Market Cap
$15,584,814,583.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.02 LINKValue
$0.49 ( ~0.000140138949181955 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | LINK-USDT | $24.74 0.0070853 Eth | $62,091,263.00 2,509,529.420 LINK | 11.3120% |
2 | Coinbase Exchange | LINK-USD | $24.73 0.0070815 Eth | $61,635,913.00 2,492,051.620 LINK | 11.2333% |
3 | MEXC | LINK-USDT | $24.75 0.0070849 Eth | $45,122,797.00 1,823,327.890 LINK | 8.2189% |
4 | Bybit | LINK-USDT | $24.74 0.0070829 Eth | $42,152,519.00 1,685,194.551 LINK | 7.5962% |
5 | OKX | LINK-USDT | $24.72 0.0070782 Eth | $29,186,635.00 1,168,284.192 LINK | 5.2662% |
6 | DigiFinex | LINK-USDT | $24.79 0.0070962 Eth | $24,091,495.00 971,817.090 LINK | 4.3806% |
7 | XT.COM | LINK-USDT | $24.72 0.0070772 Eth | $21,324,129.00 853,994.730 LINK | 3.8495% |
8 | FameEX | LINK-USDT | $24.77 0.0070917 Eth | $18,821,287.00 753,887.538 LINK | 3.3983% |
9 | Azbit | LINK-USDT | $24.73 0.0070792 Eth | $18,656,151.00 747,145.983 LINK | 3.3679% |
10 | Coinstore | LINK-USDT | $24.76 0.0070878 Eth | $15,796,470.00 633,066.560 LINK | 2.8536% |
11 | Bitunix | LINK-USDT | $24.72 0.0070800 Eth | $14,850,765.00 600,797.750 LINK | 2.7082% |
12 | HTX | LINK-USDT | $24.74 0.0070859 Eth | $12,510,674.00 502,131.822 LINK | 2.2634% |
13 | BTSE | LINK-USDT | $24.67 0.0070650 Eth | $12,073,827.00 489,502.615 LINK | 2.2065% |
14 | Binance | LINK-FDUSD | $24.63 0.0070713 Eth | $11,376,359.00 455,409.180 LINK | 2.0528% |
15 | BYDFi | LINK-USDT | $24.60 0.0070597 Eth | $11,025,526.00 448,160.390 LINK | 2.0201% |
16 | KuCoin | LINK-USDT | $24.75 0.0070856 Eth | $9,717,563.00 392,633.652 LINK | 1.7699% |
17 | LATOKEN | LINK-USDT | $24.70 0.0070787 Eth | $9,055,442.00 366,639.651 LINK | 1.6527% |
18 | Kraken | LINK-USD | $24.73 0.0070805 Eth | $8,889,754.00 359,541.968 LINK | 1.6207% |
19 | Biconomy.com | LINK-USDT | $24.75 0.0070864 Eth | $8,762,171.00 350,875.760 LINK | 1.5816% |
20 | QMall | LINK-USDT | $24.74 0.0070925 Eth | $7,514,255.00 300,664.647 LINK | 1.3553% |
21 | Dex-Trade | LINK-USDT | $24.73 0.0070814 Eth | $6,197,621.00 250,627.650 LINK | 1.1297% |
22 | Hotcoin | LINK-USDT | $24.60 0.0070652 Eth | $5,764,916.00 234,339.610 LINK | 1.0563% |
23 | LBank | LINK-USDT | $24.72 0.0070763 Eth | $5,342,749.00 216,138.620 LINK | 0.9743% |
24 | Bitvavo | LINK-EUR | $24.88 0.0071229 Eth | $4,676,454.00 187,993.067 LINK | 0.8474% |
25 | Binance | LINK-USDC | $24.69 0.0070838 Eth | $4,581,686.00 183,656.930 LINK | 0.8279% |
26 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.89 0.0071247 Eth | $4,346,652.00 172,845.687 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.7791% |
27 | Dcoin | LINK-USDT | $24.62 0.0070619 Eth | $3,005,634.00 122,083.000 LINK | 0.5503% |
28 | CoinEx | LINK-USDT | $24.72 0.0070755 Eth | $2,972,175.00 118,840.898 LINK | 0.5357% |
29 | PointPay | LINK-USDT | $24.65 0.0070675 Eth | $2,876,461.00 115,050.983 LINK | 0.5186% |
30 | EXMO | LINK-USDT | $24.75 0.0070862 Eth | $2,841,943.00 114,848.741 LINK | 0.5177% |
31 | Coinbase Exchange | LINK-EUR | $24.83 0.0071082 Eth | $2,619,151.00 105,488.560 LINK | 0.4755% |
32 | WhiteBIT | LINK-BTC | $24.71 0.0070837 Eth | $2,256,669.00 91,337.710 LINK | 0.4117% |
33 | WhiteBIT | LINK-TRY | $24.86 0.0071258 Eth | $2,111,056.00 84,907.620 LINK | 0.3827% |
34 | Phemex | LINK-USDT | $24.71 0.0070815 Eth | $1,946,294.00 78,770.330 LINK | 0.3551% |
35 | Coinbase Exchange | LINK-USDT | $24.72 0.0070764 Eth | $1,918,270.00 77,607.747 LINK | 0.3498% |
36 | BitMart | LINK-USDT | $24.79 0.0070964 Eth | $1,717,484.00 69,279.220 LINK | 0.3123% |
37 | BitStorage | LINK-USDT | $24.71 0.0070849 Eth | $1,541,546.00 62,383.210 LINK | 0.2812% |
38 | tanX | LINK-USDC | $24.69 0.0070789 Eth | $1,432,325.00 57,423.550 LINK | 0.2588% |
39 | EarnBIT | LINK-USDT | $24.82 0.0071058 Eth | $1,369,910.00 54,569.902 LINK | 0.2460% |
40 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.74 0.0070824 Eth | $1,313,176.00 52,325.710 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2359% |
41 | Binance | LINK-TRY | $24.75 0.0070960 Eth | $1,232,640.00 49,095.420 LINK | 0.2213% |
42 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.62 0.0070478 Eth | $1,153,375.00 45,586.880 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.2055% |
43 | Bitbank | LINK-JPY | $24.67 0.0070693 Eth | $1,115,992.00 45,244.165 LINK | 0.2039% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.70 0.0070726 Eth | $1,042,787.00 41,950.880 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1891% |
45 | Koinpark | LINK-USDT | $24.60 0.0070652 Eth | $977,020.00 39,715.151 LINK | 0.1790% |
46 | WhiteBIT | LINK-EUR | $24.79 0.0070979 Eth | $914,822.00 36,908.790 LINK | 0.1664% |
47 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.77 0.0070925 Eth | $902,746.00 35,912.848 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1619% |
48 | BigONE | LINK-USDT | $24.59 0.0070513 Eth | $855,095.00 34,771.680 LINK | 0.1567% |
49 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.59 0.0070417 Eth | $841,138.00 59,283.332 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2672% |
50 | KuCoin | LINK-USDC | $24.66 0.0070587 Eth | $821,846.00 33,332.733 LINK | 0.1503% |
51 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.80 0.0071002 Eth | $797,474.00 31,719.112 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1430% |
52 | Binance | LINK-EUR | $24.77 0.0070916 Eth | $720,673.00 28,708.290 LINK | 0.1294% |
53 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.85 0.0071132 Eth | $702,634.00 28,054.398 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1265% |
54 | GMO Japan | LINK-JPY | $24.73 0.0070902 Eth | $657,911.00 26,604.200 LINK | 0.1199% |
55 | HashKey Exchange | LINK-USD | $24.68 0.0070646 Eth | $652,646.00 26,178.189 LINK | 0.1180% |
56 | Gemini | LINK-USD | $24.73 0.0070812 Eth | $646,450.00 26,142.894 LINK | 0.1178% |
57 | Coinbase Exchange | LINK-ETH | $24.69 0.0070697 Eth | $608,994.00 24,663.660 LINK | 0.1112% |
58 | WEEX | LINK-USDC | $24.75 0.0070903 Eth | $500,981.00 20,242.182 LINK | 0.0912% |
59 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.61 0.0070446 Eth | $485,647.00 493,636.214 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.2251% |
60 | itBit | LINK-USD | $24.75 0.0070934 Eth | $477,151.00 19,278.827 LINK | 0.0869% |
61 | Slex | LINK-ETH | $24.68 0.0070739 Eth | $445,929.00 17,864.370 LINK | 0.0805% |
62 | BitMart | LINK-BTC | $24.74 0.0070818 Eth | $440,617.00 17,810.060 LINK | 0.0803% |
63 | Coinbase Exchange | LINK-BTC | $24.68 0.0070772 Eth | $431,880.00 17,496.210 LINK | 0.0789% |
64 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.78 0.0070964 Eth | $416,492.00 16,643.287 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0750% |
65 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.89 0.0071247 Eth | $392,544.00 394,655.407 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 1.7790% |
66 | LATOKEN | LINK-BTC | $24.71 0.0070761 Eth | $357,009.00 14,447.926 LINK | 0.0651% |
67 | OKX | LINK-USDC | $24.73 0.0070811 Eth | $319,856.00 12,799.077 LINK | 0.0577% |
68 | Binance US | LINK-USDT | $24.62 0.0070477 Eth | $316,201.00 12,842.814 LINK | 0.0579% |
69 | Bitkub | LINK-THB | $24.74 0.0070931 Eth | $280,672.00 11,345.202 LINK | 0.0511% |
70 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.73 0.0070800 Eth | $280,129.00 11,270.708 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0508% |
71 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.68 0.0070658 Eth | $270,192.00 10,780.530 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0486% |
72 | PointPay | LINK-BTC | $24.65 0.0070671 Eth | $248,606.00 9,898.392 LINK | 0.0446% |
73 | Bitci TR | LINK-TRY | $24.70 0.0070816 Eth | $246,316.00 9,845.570 LINK | 0.0444% |
74 | BitMart | LINK-ETH | $24.68 0.0070654 Eth | $241,117.00 9,768.640 LINK | 0.0440% |
75 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.67 0.0070642 Eth | $229,386.00 9,147.358 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0412% |
76 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.67 0.0070640 Eth | $225,616.00 9,014.928 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0406% |
77 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.72 0.0070758 Eth | $222,378.00 8,932.576 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0403% |
78 | BitStorage | LINK-ETH | $24.65 0.0070637 Eth | $221,593.00 8,990.920 LINK | 0.0405% |
79 | BTCMarkets | LINK-AUD | $24.79 0.0071133 Eth | $202,870.00 8,184.036 LINK | 0.0369% |
80 | KuCoin | LINK-BTC | $24.64 0.0070556 Eth | $197,457.00 8,012.055 LINK | 0.0361% |
81 | Hotcoin | LINK-BTC | $24.74 0.0070893 Eth | $197,099.00 7,967.510 LINK | 0.0359% |
82 | Kraken | LINK-GBP | $24.67 0.0070655 Eth | $185,839.00 7,532.154 LINK | 0.0340% |
83 | Bitso | LINK-USD | $24.65 0.0070724 Eth | $154,956.00 6,285.987 LINK | 0.0283% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.61 0.0070446 Eth | $125,280.00 5,006.184 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0226% |
85 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.85 0.0071156 Eth | $123,185.00 4,899.164 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0221% |
86 | EXMO | LINK-BTC | $24.91 0.0071337 Eth | $113,358.00 4,550.516 LINK | 0.0205% |
87 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.73 0.0070791 Eth | $100,871.00 3,968.916 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0179% |
88 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.63 0.0070510 Eth | $81,634.00 3,256.645 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0147% |
89 | Nonkyc.io | LINK-BTC | $24.56 0.0070486 Eth | $70,003.00 2,804.233 LINK | 0.0126% |
90 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $24.60 0.0070438 Eth | $68,284.00 91.224 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0004% |
91 | Hotcoin | LINK-ETH | $24.71 0.0070761 Eth | $67,605.00 2,735.450 LINK | 0.0123% |
92 | Bitexen | LINK-TRY | $24.38 0.0069919 Eth | $65,788.00 2,698.617 LINK | 0.0122% |
93 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.70 0.0070719 Eth | $44,672.00 1,800.065 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0081% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $24.61 0.0070446 Eth | $42,830.00 1,704.292 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0077% |
95 | HTX | LINK-BTC | $24.77 0.0070939 Eth | $40,242.00 1,604.219 LINK | 0.0072% |
96 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.39 0.0069836 Eth | $39,773.00 1,610.940 0X5947BB275C521040051D82396192181B413227A3 | 0.0073% |
97 | Binance US | LINK-BTC | $24.54 0.0070533 Eth | $34,505.00 1,406.024 LINK | 0.0063% |
98 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.67 0.0070625 Eth | $32,310.00 1,283.154 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0058% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.95 0.0068571 Eth | $28,131.00 1,121.581 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0051% |
100 | Ace | LINK-USDT | $24.66 0.0070600 Eth | $7,210.60 289.050 LINK | 0.0013% |
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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