ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,634 ( 0.041%)
Market
Price
$22.04 @ 0.006496 ETH (-1.88%)
Onchain Market Cap
$22,040,000,000.00
Circulating Supply Market Cap
$13,915,030,803.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
66.503024257307721485 LINKValue
$1,465.73 ( ~0.432033664641738 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $22.00 0.0064822 Eth | $113,772,792.00 5,276,482.410 LINK | 20.0487% |
2 | Coinbase Exchange | LINK-USD | $22.03 0.0064911 Eth | $47,505,455.00 2,156,789.940 LINK | 8.1950% |
3 | Bybit | LINK-USDT | $22.06 0.0064997 Eth | $38,098,605.00 1,765,732.528 LINK | 6.7091% |
4 | Upbit | LINK-KRW | $22.36 0.0065925 Eth | $36,459,231.00 1,630,264.914 LINK | 6.1944% |
5 | WhiteBIT | LINK-USDT | $22.10 0.0065009 Eth | $24,786,265.00 1,121,800.840 LINK | 4.2624% |
6 | P2B | LINK-USDT | $21.96 0.0064727 Eth | $24,243,458.00 1,103,816.800 LINK | 4.1941% |
7 | Slex | LINK-USDT | $22.09 0.0064987 Eth | $21,298,860.00 988,653.310 LINK | 3.7565% |
8 | CoinW | LINK-USDT | $22.02 0.0064887 Eth | $21,170,722.00 961,519.340 LINK | 3.6534% |
9 | MEXC | LINK-USDT | $22.02 0.0064925 Eth | $20,912,988.00 949,588.760 LINK | 3.6081% |
10 | OKX | LINK-USDT | $22.01 0.0064892 Eth | $19,693,552.00 912,589.890 LINK | 3.4675% |
11 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.10 0.0065121 Eth | $16,907,999.00 763,413.167 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.9007% |
12 | DigiFinex | LINK-USDT | $21.99 0.0064795 Eth | $15,113,695.00 687,186.820 LINK | 2.6111% |
13 | FameEX | LINK-USDT | $22.05 0.0064999 Eth | $11,369,113.00 527,195.336 LINK | 2.0032% |
14 | XT.COM | LINK-USDT | $22.04 0.0064959 Eth | $11,340,865.00 525,820.140 LINK | 1.9979% |
15 | Azbit | LINK-USDT | $22.11 0.0065068 Eth | $11,248,249.00 521,605.636 LINK | 1.9819% |
16 | Coinstore | LINK-USDT | $22.02 0.0064892 Eth | $10,333,367.00 479,502.500 LINK | 1.8219% |
17 | HTX | LINK-USDT | $22.07 0.0065058 Eth | $9,760,267.00 452,942.360 LINK | 1.7210% |
18 | Bitunix | LINK-USDT | $22.07 0.0065057 Eth | $9,557,184.00 432,998.230 LINK | 1.6452% |
19 | BYDFi | LINK-USDT | $22.11 0.0065075 Eth | $7,562,710.00 341,997.980 LINK | 1.2995% |
20 | Biconomy.com | LINK-USDT | $22.02 0.0064921 Eth | $6,962,053.00 322,905.722 LINK | 1.2269% |
21 | KuCoin | LINK-USDT | $22.08 0.0065097 Eth | $6,245,211.00 282,806.862 LINK | 1.0746% |
22 | LATOKEN | LINK-USDT | $21.96 0.0064822 Eth | $5,332,384.00 242,822.698 LINK | 0.9226% |
23 | LBank | LINK-USDT | $22.06 0.0065043 Eth | $4,826,018.00 218,736.830 LINK | 0.8311% |
24 | QMall | LINK-USDT | $22.02 0.0064898 Eth | $4,645,077.00 215,587.431 LINK | 0.8192% |
25 | Binance | LINK-USDC | $22.05 0.0064987 Eth | $4,322,529.00 200,832.830 LINK | 0.7631% |
26 | Dex-Trade | LINK-USDT | $21.93 0.0064810 Eth | $3,805,872.00 173,522.194 LINK | 0.6593% |
27 | Kraken | LINK-USD | $22.02 0.0064887 Eth | $3,793,585.00 172,240.506 LINK | 0.6545% |
28 | Bitvavo | LINK-EUR | $22.13 0.0065128 Eth | $3,588,605.00 162,165.690 LINK | 0.6162% |
29 | Bitstamp | LINK-USD | $22.09 0.0065079 Eth | $3,527,728.00 159,697.963 LINK | 0.6068% |
30 | Hotcoin | LINK-USDT | $22.12 0.0065107 Eth | $2,669,058.00 120,659.340 LINK | 0.4585% |
31 | Coinbase Exchange | LINK-GBP | $22.03 0.0064911 Eth | $2,649,233.00 120,276.690 LINK | 0.4570% |
32 | CoinEx | LINK-USDT | $22.01 0.0064879 Eth | $2,626,190.00 121,597.613 LINK | 0.4620% |
33 | Bybit | LINK-USDC | $22.07 0.0065031 Eth | $2,401,726.00 112,075.275 LINK | 0.4258% |
34 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.09 0.0065096 Eth | $2,250,057.00 101,964.774 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3874% |
35 | Dcoin | LINK-USDT | $22.04 0.0064953 Eth | $2,148,373.00 97,475.000 LINK | 0.3704% |
36 | PointPay | LINK-USDT | $22.01 0.0064871 Eth | $1,815,076.00 84,368.045 LINK | 0.3206% |
37 | Kraken | LINK-USDT | $22.06 0.0064987 Eth | $1,776,051.00 80,514.368 LINK | 0.3059% |
38 | Coinbase Exchange | LINK-ETH | $21.99 0.0064818 Eth | $1,715,247.00 78,009.390 LINK | 0.2964% |
39 | EXMO | LINK-USDT | $22.09 0.0065120 Eth | $1,667,573.00 75,487.446 LINK | 0.2868% |
40 | Coinbase Exchange | LINK-EUR | $22.04 0.0064966 Eth | $1,604,601.00 72,788.240 LINK | 0.2766% |
41 | Phemex | LINK-USDT | $22.06 0.0065037 Eth | $1,401,890.00 63,541.230 LINK | 0.2414% |
42 | tanX | LINK-USDC | $22.05 0.0064996 Eth | $1,010,882.00 46,849.670 LINK | 0.1780% |
43 | Coinbase Exchange | LINK-USDT | $22.04 0.0064956 Eth | $996,176.00 45,196.548 LINK | 0.1717% |
44 | WhiteBIT | LINK-BTC | $21.96 0.0064814 Eth | $989,754.00 45,076.600 LINK | 0.1713% |
45 | BitStorage | LINK-USDT | $22.04 0.0064951 Eth | $939,129.00 42,609.070 LINK | 0.1619% |
46 | EarnBIT | LINK-USDT | $22.00 0.0064852 Eth | $919,791.00 42,721.654 LINK | 0.1623% |
47 | Binance | LINK-TRY | $22.15 0.0065287 Eth | $883,611.00 40,648.750 LINK | 0.1545% |
48 | Bitbank | LINK-JPY | $22.07 0.0065048 Eth | $788,772.00 35,746.426 LINK | 0.1358% |
49 | WhiteBIT | LINK-TRY | $22.09 0.0065195 Eth | $784,910.00 35,538.420 LINK | 0.1350% |
50 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.97 0.0064768 Eth | $773,092.00 35,359.291 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1344% |
51 | GMO Japan | LINK-JPY | $22.11 0.0065168 Eth | $741,317.00 33,534.300 LINK | 0.1274% |
52 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.08 0.0065082 Eth | $673,439.00 30,182.885 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1147% |
53 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $22.01 0.0064888 Eth | $583,646.00 26,159.615 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0994% |
54 | Gemini | LINK-USD | $21.97 0.0064718 Eth | $545,612.00 24,837.411 LINK | 0.0944% |
55 | itBit | LINK-USD | $21.98 0.0064864 Eth | $540,569.00 24,593.677 LINK | 0.0934% |
56 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.10 0.0065121 Eth | $505,766.00 37,362.255 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1420% |
57 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.01 0.0064899 Eth | $487,355.00 22,226.962 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0845% |
58 | BitMart | LINK-BTC | $22.03 0.0064916 Eth | $400,880.00 18,193.260 LINK | 0.0691% |
59 | BigONE | LINK-USDT | $22.05 0.0064874 Eth | $390,973.00 17,732.030 LINK | 0.0674% |
60 | Slex | LINK-ETH | $22.08 0.0065007 Eth | $381,041.00 17,427.080 LINK | 0.0662% |
61 | Coinbase Exchange | LINK-BTC | $22.02 0.0064913 Eth | $370,129.00 16,809.340 LINK | 0.0639% |
62 | HashKey Exchange | LINK-USD | $22.07 0.0065020 Eth | $332,724.00 15,504.653 LINK | 0.0589% |
63 | WhiteBIT | LINK-EUR | $22.06 0.0065005 Eth | $315,972.00 14,325.040 LINK | 0.0544% |
64 | OKX | LINK-USDC | $22.06 0.0065033 Eth | $314,478.00 14,648.484 LINK | 0.0557% |
65 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.10 0.0065095 Eth | $302,516.00 13,692.471 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0520% |
66 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $22.06 0.0064978 Eth | $300,091.00 295,692.497 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.1235% |
67 | LATOKEN | LINK-BTC | $22.03 0.0064928 Eth | $258,903.00 11,754.900 LINK | 0.0447% |
68 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $22.10 0.0065122 Eth | $254,039.00 11,588.494 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0440% |
69 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.97 0.0064770 Eth | $232,174.00 228,953.112 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.8699% |
70 | BitStorage | LINK-ETH | $22.05 0.0064969 Eth | $220,050.00 9,981.450 LINK | 0.0379% |
71 | KuCoin | LINK-USDC | $22.01 0.0064869 Eth | $216,062.00 9,818.497 LINK | 0.0373% |
72 | PointPay | LINK-BTC | $22.03 0.0064956 Eth | $197,469.00 9,146.887 LINK | 0.0348% |
73 | BitMart | LINK-ETH | $22.02 0.0064898 Eth | $180,132.00 8,182.100 LINK | 0.0311% |
74 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $22.03 0.0064935 Eth | $169,198.00 7,722.893 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0293% |
75 | Kraken | LINK-GBP | $22.17 0.0065302 Eth | $162,581.00 7,334.810 LINK | 0.0279% |
76 | Bitso | LINK-USD | $22.01 0.0064875 Eth | $154,241.00 7,008.755 LINK | 0.0266% |
77 | Bitkub | LINK-THB | $21.98 0.0064885 Eth | $150,659.00 6,855.811 LINK | 0.0260% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.00 0.0064827 Eth | $139,205.00 6,329.416 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0240% |
79 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.99 0.0064814 Eth | $124,672.00 5,782.164 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0220% |
80 | Mercado Bitcoin | LINK-BRL | $22.29 0.0065706 Eth | $106,196.00 4,764.767 LINK | 0.0181% |
81 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.04 0.0064942 Eth | $105,543.00 4,845.144 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0184% |
82 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.97 0.0064770 Eth | $93,402.00 4,251.408 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0162% |
83 | Hotcoin | LINK-BTC | $22.12 0.0065110 Eth | $91,092.00 4,117.800 LINK | 0.0156% |
84 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.00 0.0064861 Eth | $88,013.00 4,010.577 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0152% |
85 | EXMO | LINK-BTC | $22.13 0.0065241 Eth | $83,462.00 3,771.167 LINK | 0.0143% |
86 | Binance US | LINK-USDT | $21.97 0.0064750 Eth | $76,183.00 3,467.412 LINK | 0.0132% |
87 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $22.00 0.0064867 Eth | $72,603.00 3,262.772 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0124% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $21.97 0.0064770 Eth | $67,887.00 3,139.389 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0119% |
89 | BTCMarkets | LINK-AUD | $21.97 0.0064730 Eth | $66,405.00 3,023.053 LINK | 0.0115% |
90 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $22.09 0.0065096 Eth | $60,712.00 60,070.037 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2282% |
91 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $22.00 0.0064844 Eth | $57,472.00 2,633.998 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0100% |
92 | KuCoin | LINK-BTC | $22.00 0.0064857 Eth | $57,256.00 2,602.362 LINK | 0.0099% |
93 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.10 0.0065117 Eth | $46,249.00 3,409.863 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0130% |
94 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $22.06 0.0065022 Eth | $43,763.00 1,999.039 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0076% |
95 | Bitexen | LINK-TRY | $21.94 0.0064572 Eth | $40,070.00 1,826.271 LINK | 0.0069% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $22.05 0.0065013 Eth | $31,282.00 1,424.341 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0054% |
97 | Hotcoin | LINK-ETH | $22.04 0.0064956 Eth | $29,496.00 1,338.110 LINK | 0.0051% |
98 | zondacrypto | LINK-USDC | $21.91 0.0064578 Eth | $21,589.00 985.125 LINK | 0.0037% |
99 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $22.06 0.0065032 Eth | $20,022.00 25.825 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
100 | Ace | LINK-USDT | $22.03 0.0064930 Eth | $4,421.49 204.900 LINK | 0.0008% |
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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