ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,337 ( -0.013%)
Market
Price
$21.28 @ 0.006231 ETH (-1.64%)
Onchain Market Cap
$21,280,000,000.00
Circulating Supply Market Cap
$13,436,595,508.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.03 LINKValue
$0.64 ( ~0.000187395848072891 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $21.16 0.0061955 Eth | $60,424,528.00 2,839,192.100 LINK | 19.7829% |
2 | Coinbase Exchange | LINK-USD | $21.17 0.0061941 Eth | $28,657,328.00 1,353,548.440 LINK | 9.4312% |
3 | Upbit | LINK-KRW | $21.27 0.0062276 Eth | $22,485,737.00 1,056,958.710 LINK | 7.3647% |
4 | Slex | LINK-USDT | $21.16 0.0061952 Eth | $22,351,317.00 1,049,072.220 LINK | 7.3097% |
5 | MEXC | LINK-USDT | $21.23 0.0062114 Eth | $16,265,895.00 766,062.750 LINK | 5.3378% |
6 | Bybit | LINK-USDT | $21.16 0.0061938 Eth | $16,120,902.00 756,930.852 LINK | 5.2741% |
7 | CoinW | LINK-USDT | $21.26 0.0062218 Eth | $10,545,763.00 495,998.680 LINK | 3.4560% |
8 | OKX | LINK-USDT | $21.17 0.0061960 Eth | $9,840,694.00 461,901.541 LINK | 3.2184% |
9 | HTX | LINK-USDT | $21.16 0.0061937 Eth | $9,001,138.00 422,583.390 LINK | 2.9445% |
10 | DigiFinex | LINK-USDT | $21.17 0.0061972 Eth | $7,829,286.00 369,826.680 LINK | 2.5769% |
11 | Azbit | LINK-USDT | $21.31 0.0062348 Eth | $6,002,569.00 281,969.460 LINK | 1.9647% |
12 | XT.COM | LINK-USDT | $21.23 0.0062114 Eth | $5,916,115.00 277,887.910 LINK | 1.9363% |
13 | Coinstore | LINK-USDT | $21.15 0.0061875 Eth | $5,499,859.00 258,609.990 LINK | 1.8019% |
14 | Bithumb | LINK-KRW | $21.29 0.0062336 Eth | $5,425,190.00 254,771.091 LINK | 1.7752% |
15 | Biconomy.com | LINK-USDT | $21.17 0.0061968 Eth | $5,107,641.00 239,746.733 LINK | 1.6705% |
16 | Bitunix | LINK-USDT | $21.20 0.0062009 Eth | $4,984,839.00 235,106.690 LINK | 1.6382% |
17 | Coinbase Exchange | LINK-GBP | $21.25 0.0062153 Eth | $4,672,234.00 219,916.360 LINK | 1.5323% |
18 | BTSE | LINK-USDT | $21.21 0.0062057 Eth | $4,521,770.00 213,143.107 LINK | 1.4851% |
19 | Binance | LINK-USDC | $21.23 0.0062103 Eth | $4,110,183.00 193,373.980 LINK | 1.3474% |
20 | BYDFi | LINK-USDT | $21.25 0.0062182 Eth | $3,920,208.00 184,447.190 LINK | 1.2852% |
21 | Hotcoin | LINK-USDT | $21.23 0.0062110 Eth | $3,866,997.00 182,119.890 LINK | 1.2690% |
22 | LBank | LINK-USDT | $21.16 0.0061962 Eth | $3,740,607.00 176,746.450 LINK | 1.2315% |
23 | Kraken | LINK-USD | $21.22 0.0062129 Eth | $3,313,015.00 156,101.710 LINK | 1.0877% |
24 | KuCoin | LINK-USDT | $21.17 0.0061969 Eth | $3,038,350.00 143,528.621 LINK | 1.0001% |
25 | LATOKEN | LINK-USDT | $21.21 0.0062053 Eth | $2,931,406.00 138,187.448 LINK | 0.9629% |
26 | QMall | LINK-USDT | $21.15 0.0061923 Eth | $2,512,727.00 118,066.223 LINK | 0.8227% |
27 | Bitvavo | LINK-EUR | $21.15 0.0061806 Eth | $2,396,473.00 113,333.912 LINK | 0.7897% |
28 | Dex-Trade | LINK-USDT | $21.16 0.0061958 Eth | $1,940,253.00 91,673.419 LINK | 0.6388% |
29 | Dcoin | LINK-USDT | $21.16 0.0061955 Eth | $1,866,594.00 88,196.000 LINK | 0.6145% |
30 | CoinEx | LINK-USDT | $21.17 0.0061981 Eth | $1,283,735.00 60,284.807 LINK | 0.4201% |
31 | Coinbase Exchange | LINK-USDT | $21.38 0.0062549 Eth | $1,189,169.00 55,610.054 LINK | 0.3875% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.36 0.0062496 Eth | $1,097,054.00 50,536.543 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3521% |
33 | Phemex | LINK-USDT | $21.22 0.0062082 Eth | $1,048,802.00 49,417.640 LINK | 0.3443% |
34 | PointPay | LINK-USDT | $21.21 0.0062053 Eth | $951,364.00 44,709.919 LINK | 0.3115% |
35 | Trubit | LINK-USDT | $21.31 0.0062331 Eth | $909,919.00 42,733.220 LINK | 0.2978% |
36 | Bybit | LINK-USDC | $21.17 0.0061982 Eth | $907,890.00 42,877.713 LINK | 0.2988% |
37 | Azbit | LINK-ETH | $21.21 0.0062092 Eth | $866,034.00 40,180.374 LINK | 0.2800% |
38 | EXMO | LINK-USDT | $21.16 0.0061942 Eth | $864,074.00 40,836.530 LINK | 0.2845% |
39 | WhiteBIT | LINK-BTC | $21.17 0.0061977 Eth | $774,886.00 36,599.920 LINK | 0.2550% |
40 | tanX | LINK-USDC | $21.21 0.0062100 Eth | $705,039.00 33,123.690 LINK | 0.2308% |
41 | WhiteBIT | LINK-TRY | $21.21 0.0062096 Eth | $681,112.00 32,109.270 LINK | 0.2237% |
42 | BigONE | LINK-USDT | $21.16 0.0061887 Eth | $618,868.00 29,250.160 LINK | 0.2038% |
43 | Bitbank | LINK-JPY | $21.16 0.0061898 Eth | $598,304.00 28,273.173 LINK | 0.1970% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.21 0.0062102 Eth | $525,568.00 24,371.619 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1698% |
45 | HashKey Exchange | LINK-USD | $21.29 0.0062270 Eth | $450,148.00 21,057.544 LINK | 0.1467% |
46 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.39 0.0062584 Eth | $446,374.00 20,677.757 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1441% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.23 0.0062145 Eth | $403,045.00 18,874.769 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1315% |
48 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.34 0.0062430 Eth | $389,445.00 29,295.875 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2041% |
49 | Slex | LINK-ETH | $21.22 0.0062064 Eth | $369,971.00 17,159.040 LINK | 0.1196% |
50 | QMall | LINK-USDC | $21.30 0.0062329 Eth | $364,512.00 17,122.188 LINK | 0.1193% |
51 | Gemini | LINK-USD | $21.17 0.0061963 Eth | $348,453.00 16,462.099 LINK | 0.1147% |
52 | Binance | LINK-EUR | $21.23 0.0062155 Eth | $339,301.00 16,069.940 LINK | 0.1120% |
53 | BitMart | LINK-BTC | $21.21 0.0062086 Eth | $319,638.00 15,070.900 LINK | 0.1050% |
54 | Binance | LINK-TRY | $21.34 0.0062406 Eth | $318,720.00 14,913.120 LINK | 0.1039% |
55 | itBit | LINK-USD | $21.26 0.0062190 Eth | $285,304.00 13,419.734 LINK | 0.0935% |
56 | Coinone | LINK-KRW | $21.31 0.0062375 Eth | $263,201.00 12,352.249 LINK | 0.0861% |
57 | OKX | LINK-USDC | $21.15 0.0061928 Eth | $237,085.00 11,120.937 LINK | 0.0775% |
58 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.23 0.0062120 Eth | $235,585.00 10,930.396 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0762% |
59 | Bitci TR | LINK-TRY | $21.21 0.0062070 Eth | $220,204.00 10,303.821 LINK | 0.0718% |
60 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $21.21 0.0062041 Eth | $220,053.00 10,323.004 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0719% |
61 | BitDelta | LINK-USDT | $21.29 0.0062285 Eth | $209,233.00 9,821.000 LINK | 0.0684% |
62 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.21 0.0062102 Eth | $199,024.00 199,708.444 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.3915% |
63 | Bitkub | LINK-THB | $21.29 0.0062318 Eth | $195,152.00 9,167.136 LINK | 0.0639% |
64 | Coinbase Exchange | LINK-ETH | $21.17 0.0061983 Eth | $181,855.00 8,589.870 LINK | 0.0599% |
65 | Coinbase Exchange | LINK-BTC | $21.19 0.0062042 Eth | $162,076.00 7,647.210 LINK | 0.0533% |
66 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $21.33 0.0062415 Eth | $161,116.00 7,287.510 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0508% |
67 | BitStorage | LINK-ETH | $21.17 0.0061958 Eth | $157,353.00 7,434.560 LINK | 0.0518% |
68 | BitMart | LINK-ETH | $21.20 0.0062069 Eth | $144,328.00 6,806.900 LINK | 0.0474% |
69 | Hotcoin | LINK-BTC | $21.23 0.0062087 Eth | $129,779.00 6,114.370 LINK | 0.0426% |
70 | LATOKEN | LINK-BTC | $21.21 0.0062100 Eth | $115,498.00 5,444.507 LINK | 0.0379% |
71 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.34 0.0062430 Eth | $105,539.00 4,935.472 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0344% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.18 0.0062005 Eth | $94,185.00 4,384.296 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0305% |
73 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $21.30 0.0062363 Eth | $87,008.00 4,046.406 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0282% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.21 0.0062079 Eth | $83,712.00 3,909.858 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0272% |
75 | Bitso | LINK-USD | $21.28 0.0062240 Eth | $65,769.00 3,090.886 LINK | 0.0215% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $21.21 0.0062079 Eth | $65,006.00 3,056.237 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0213% |
77 | Binance US | LINK-USDT | $21.30 0.0062316 Eth | $55,726.00 2,615.867 LINK | 0.0182% |
78 | Kraken | LINK-GBP | $21.03 0.0061565 Eth | $54,041.00 2,569.604 LINK | 0.0179% |
79 | CoinEx | LINK-BTC | $21.25 0.0062103 Eth | $50,655.00 2,410.483 LINK | 0.0168% |
80 | Hotcoin | LINK-ETH | $21.24 0.0062163 Eth | $44,779.00 2,107.760 LINK | 0.0147% |
81 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $21.24 0.0062136 Eth | $37,595.00 2,074.951 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0145% |
82 | Mercado Bitcoin | LINK-BRL | $21.20 0.0062059 Eth | $35,729.00 1,685.268 LINK | 0.0117% |
83 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.20 0.0062055 Eth | $25,224.00 25,412.157 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1771% |
84 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $21.21 0.0062057 Eth | $24,367.00 1,144.774 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0080% |
85 | Korbit | LINK-KRW | $21.38 0.0062594 Eth | $23,764.00 1,101.900 LINK | 0.0077% |
86 | CoinEx | LINK-USDC | $21.24 0.0062170 Eth | $21,264.00 997.943 LINK | 0.0070% |
87 | Bitexen | LINK-TRY | $21.03 0.0061555 Eth | $18,616.57 885.105 LINK | 0.0062% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $21.33 0.0062436 Eth | $14,899.88 700.631 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0049% |
89 | Gemini | LINK-BTC | $21.28 0.0062303 Eth | $14,509.07 681.716 LINK | 0.0048% |
90 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $21.27 0.0062224 Eth | $13,295.91 619.157 0X5947BB275C521040051D82396192181B413227A3 | 0.0043% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $21.18 0.0061994 Eth | $12,603.05 591.267 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0041% |
92 | KuCoin | LINK-KCS | $21.13 0.0061869 Eth | $11,739.32 555.448 LINK | 0.0039% |
93 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $21.17 0.0061971 Eth | $8,625.50 11.436 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
94 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.36 0.0062485 Eth | $7,896.00 7,911.684 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0551% |
95 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $21.29 0.0062287 Eth | $7,779.44 365.819 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0025% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.25 0.0062199 Eth | $7,704.96 357.627 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0025% |
97 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.21 0.0062098 Eth | $3,251.22 147.768 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0010% |
98 | Ace | LINK-USDT | $21.25 0.0062182 Eth | $2,653.57 124.610 LINK | 0.0009% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $21.25 0.0062143 Eth | $1,729.06 80.783 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0006% |
100 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $21.37 0.0062505 Eth | $1,720.08 79.488 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0006% |
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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