ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,724 ( 0.017%)
Market
Price
$24.69 @ 0.007607 ETH (-3.79%)
Onchain Market Cap
$24,690,000,000.00
Circulating Supply Market Cap
$15,754,707,227.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.78 0.0075902 Eth | $146,286,791.00 5,767,679.140 LINK | 23.5129% |
2 | Coinbase Exchange | LINK-USD | $24.55 0.0075464 Eth | $63,038,502.00 2,568,282.810 LINK | 10.4700% |
3 | Bybit | LINK-USDT | $24.79 0.0075896 Eth | $44,867,447.00 1,771,608.588 LINK | 7.2222% |
4 | P2B | LINK-USDT | $24.75 0.0075782 Eth | $28,970,261.00 1,170,433.400 LINK | 4.7715% |
5 | OKX | LINK-USDT | $24.75 0.0075778 Eth | $24,074,137.00 948,425.964 LINK | 3.8664% |
6 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.86 0.0076119 Eth | $19,772,670.00 793,795.243 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 3.2360% |
7 | DigiFinex | LINK-USDT | $24.74 0.0075751 Eth | $18,067,605.00 730,248.830 LINK | 2.9770% |
8 | Slex | LINK-USDT | $24.62 0.0075629 Eth | $17,967,950.00 711,171.650 LINK | 2.8992% |
9 | Gate.io | LINK-USDT | $24.76 0.0075780 Eth | $17,128,599.00 674,644.680 LINK | 2.7503% |
10 | XT.COM | LINK-USDT | $24.76 0.0075804 Eth | $14,345,937.00 565,864.410 LINK | 2.3068% |
11 | Azbit | LINK-USDT | $24.59 0.0075548 Eth | $14,016,022.00 553,189.075 LINK | 2.2552% |
12 | HTX | LINK-USDT | $24.60 0.0075547 Eth | $13,616,606.00 539,241.857 LINK | 2.1983% |
13 | Bitunix | LINK-USDT | $24.75 0.0076281 Eth | $12,442,394.00 502,858.920 LINK | 2.0500% |
14 | Coinstore | LINK-USDT | $24.72 0.0075721 Eth | $12,143,005.00 479,787.450 LINK | 1.9559% |
15 | MEXC | LINK-USDT | $24.59 0.0075538 Eth | $11,948,691.00 485,845.070 LINK | 1.9806% |
16 | Binance | LINK-FDUSD | $24.82 0.0075984 Eth | $8,500,901.00 334,819.440 LINK | 1.3649% |
17 | CoinW | LINK-USDT | $24.74 0.0075756 Eth | $8,456,070.00 341,787.430 LINK | 1.3934% |
18 | KuCoin | LINK-USDT | $24.63 0.0075468 Eth | $8,193,283.00 332,690.870 LINK | 1.3563% |
19 | BYDFi | LINK-USDT | $24.77 0.0075849 Eth | $7,799,250.00 314,812.930 LINK | 1.2834% |
20 | LBank | LINK-USDT | $24.60 0.0075571 Eth | $6,760,862.00 274,803.570 LINK | 1.1203% |
21 | LATOKEN | LINK-USDT | $24.75 0.0075784 Eth | $6,710,073.00 271,075.662 LINK | 1.1051% |
22 | BTSE | LINK-USDT | $24.57 0.0075487 Eth | $6,354,804.00 258,620.735 LINK | 1.0543% |
23 | Kraken | LINK-USD | $24.56 0.0075438 Eth | $5,973,756.00 243,203.857 LINK | 0.9915% |
24 | Bitvavo | LINK-EUR | $24.78 0.0075854 Eth | $5,886,575.00 237,528.141 LINK | 0.9683% |
25 | QMall | LINK-USDT | $24.59 0.0075540 Eth | $5,866,512.00 231,533.704 LINK | 0.9439% |
26 | Hotcoin | LINK-USDT | $24.76 0.0075804 Eth | $5,326,748.00 215,097.630 LINK | 0.8769% |
27 | Coinbase Exchange | LINK-EUR | $24.56 0.0075497 Eth | $5,123,924.00 208,656.330 LINK | 0.8506% |
28 | Dex-Trade | LINK-USDT | $24.73 0.0075721 Eth | $4,356,073.00 176,132.870 LINK | 0.7180% |
29 | FMCPAY | LINK-USDT | $24.75 0.0075783 Eth | $3,951,264.00 156,498.398 LINK | 0.6380% |
30 | Biconomy.com | LINK-USDT | $24.53 0.0075435 Eth | $3,033,510.00 120,003.493 LINK | 0.4892% |
31 | CoinEx | LINK-USDT | $24.55 0.0075466 Eth | $2,939,801.00 116,015.251 LINK | 0.4730% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.51 0.0075361 Eth | $2,651,899.00 107,644.156 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4388% |
33 | PointPay | LINK-USDT | $24.84 0.0076055 Eth | $2,409,346.00 94,869.627 LINK | 0.3868% |
34 | Coinbase Exchange | LINK-GBP | $24.55 0.0075488 Eth | $2,026,825.00 82,545.720 LINK | 0.3365% |
35 | Bitstamp | LINK-EUR | $24.53 0.0075424 Eth | $1,850,169.00 75,438.049 LINK | 0.3075% |
36 | FMCPAY | LINK-ETH | $24.61 0.0075513 Eth | $1,816,565.00 73,029.120 LINK | 0.2977% |
37 | FMCPAY | LINK-BTC | $24.58 0.0075495 Eth | $1,594,282.00 63,549.800 LINK | 0.2591% |
38 | Binance | LINK-TRY | $24.95 0.0076370 Eth | $1,466,397.00 57,449.510 LINK | 0.2342% |
39 | Phemex | LINK-USDT | $24.58 0.0075518 Eth | $1,414,709.00 57,550.710 LINK | 0.2346% |
40 | EXMO | LINK-USDT | $24.55 0.0075513 Eth | $1,383,864.00 56,358.819 LINK | 0.2298% |
41 | EarnBIT | LINK-USDT | $24.93 0.0076430 Eth | $1,189,423.00 46,787.199 LINK | 0.1907% |
42 | BitStorage | LINK-USDT | $24.55 0.0075468 Eth | $1,098,907.00 44,766.970 LINK | 0.1825% |
43 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.70 0.0075648 Eth | $1,051,984.00 42,551.695 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1735% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.58 0.0075558 Eth | $1,047,565.00 42,209.215 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1721% |
45 | Bitbank | LINK-JPY | $24.70 0.0075769 Eth | $969,660.00 39,262.037 LINK | 0.1601% |
46 | Binance | LINK-EUR | $24.63 0.0075550 Eth | $895,122.00 35,315.550 LINK | 0.1440% |
47 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.73 0.0076049 Eth | $876,604.00 73,862.754 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3011% |
48 | Trubit | LINK-USDT | $24.58 0.0075502 Eth | $817,531.00 32,421.580 LINK | 0.1322% |
49 | BigONE | LINK-USDT | $24.51 0.0075346 Eth | $806,403.00 32,907.220 LINK | 0.1342% |
50 | QMall | LINK-USDC | $24.60 0.0075574 Eth | $770,345.00 30,348.653 LINK | 0.1237% |
51 | Coinbase Exchange | LINK-USDT | $24.60 0.0075571 Eth | $759,867.00 30,885.738 LINK | 0.1259% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.72 0.0075658 Eth | $730,997.00 29,021.382 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1183% |
53 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.83 0.0076035 Eth | $685,302.00 27,455.379 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1119% |
54 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.72 0.0076020 Eth | $596,696.00 610,292.899 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.4880% |
55 | WhiteBIT | LINK-TRY | $24.92 0.0076312 Eth | $596,128.00 23,917.820 LINK | 0.0975% |
56 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.53 0.0075357 Eth | $595,277.00 23,665.733 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0965% |
57 | OKX | LINK-USDC | $24.74 0.0075760 Eth | $577,607.00 22,689.012 LINK | 0.0925% |
58 | LATOKEN | LINK-BTC | $24.77 0.0075843 Eth | $572,990.00 23,136.083 LINK | 0.0943% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.61 0.0075684 Eth | $544,583.00 22,138.127 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0902% |
60 | Coinbase Exchange | LINK-BTC | $24.56 0.0075556 Eth | $541,567.00 22,050.820 LINK | 0.0899% |
61 | Gemini | LINK-USD | $24.55 0.0075513 Eth | $533,052.00 21,709.051 LINK | 0.0885% |
62 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.62 0.0075725 Eth | $491,998.00 19,810.041 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0808% |
63 | itBit | LINK-USD | $24.51 0.0075357 Eth | $479,002.00 19,543.108 LINK | 0.0797% |
64 | HashKey Exchange | LINK-USD | $24.55 0.0075477 Eth | $456,188.00 18,088.443 LINK | 0.0737% |
65 | GMO Japan | LINK-JPY | $24.79 0.0075889 Eth | $452,274.00 18,242.000 LINK | 0.0744% |
66 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.80 0.0075917 Eth | $351,439.00 13,851.117 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0565% |
67 | WhiteBIT | LINK-BTC | $24.56 0.0075553 Eth | $319,439.00 13,007.060 LINK | 0.0530% |
68 | Slex | LINK-ETH | $24.57 0.0075552 Eth | $275,926.00 11,126.230 LINK | 0.0454% |
69 | BitMart | LINK-BTC | $24.57 0.0075565 Eth | $259,244.00 10,551.280 LINK | 0.0430% |
70 | BitStorage | LINK-ETH | $24.57 0.0075528 Eth | $255,758.00 10,410.740 LINK | 0.0424% |
71 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.64 0.0075676 Eth | $248,620.00 9,888.330 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0403% |
72 | PointPay | LINK-BTC | $24.81 0.0075937 Eth | $217,796.00 8,652.627 LINK | 0.0353% |
73 | WhiteBIT | LINK-EUR | $24.86 0.0076144 Eth | $192,946.00 7,759.880 LINK | 0.0316% |
74 | Hotcoin | LINK-BTC | $24.65 0.0075600 Eth | $186,896.00 7,583.350 LINK | 0.0309% |
75 | Coinbase Exchange | LINK-ETH | $24.55 0.0075421 Eth | $185,047.00 7,537.380 LINK | 0.0307% |
76 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.86 0.0076118 Eth | $181,838.00 7,168.933 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0292% |
77 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.69 0.0075903 Eth | $159,522.00 6,428.861 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0262% |
78 | Kraken | LINK-GBP | $24.78 0.0075849 Eth | $152,301.00 6,146.227 LINK | 0.0251% |
79 | CoinTR | LINK-TRY | $24.72 0.0075881 Eth | $140,691.00 5,548.360 LINK | 0.0226% |
80 | Bitso | LINK-USD | $24.76 0.0075774 Eth | $131,341.00 5,305.576 LINK | 0.0216% |
81 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.68 0.0075557 Eth | $125,612.00 127,953.090 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.5216% |
82 | Binance US | LINK-USDT | $24.80 0.0075949 Eth | $123,461.00 4,979.129 LINK | 0.0203% |
83 | Bitkub | LINK-THB | $24.69 0.0075917 Eth | $119,370.00 4,834.299 LINK | 0.0197% |
84 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.71 0.0075969 Eth | $112,922.00 115,199.695 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.4696% |
85 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.51 0.0075361 Eth | $90,991.00 3,653.699 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0149% |
86 | KuCoin | LINK-BTC | $24.53 0.0075427 Eth | $76,252.00 3,108.950 LINK | 0.0127% |
87 | Gemini | LINK-BTC | $24.82 0.0075980 Eth | $70,663.00 2,846.597 LINK | 0.0116% |
88 | Hotcoin | LINK-ETH | $24.74 0.0075744 Eth | $60,262.00 2,435.870 LINK | 0.0099% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $24.77 0.0075844 Eth | $51,041.00 2,033.793 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0083% |
90 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $24.82 0.0075989 Eth | $44,121.00 1,843.900 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0075% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.70 0.0075960 Eth | $40,056.00 1,629.236 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0066% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $24.86 0.0076146 Eth | $39,893.00 1,589.890 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0065% |
93 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.75 0.0075990 Eth | $37,646.00 1,510.926 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0062% |
94 | Dex-Trade | LINK-ETH | $24.59 0.0075601 Eth | $37,416.00 1,521.680 LINK | 0.0062% |
95 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.73 0.0076044 Eth | $37,390.00 1,473.516 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0060% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $24.58 0.0075524 Eth | $34,738.00 1,375.357 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0056% |
97 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.59 0.0075611 Eth | $33,140.00 1,344.716 0X5947BB275C521040051D82396192181B413227A3 | 0.0055% |
98 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.51 0.0075357 Eth | $31,141.00 97.404 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0004% |
99 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.82 0.0076150 Eth | $22,290.00 903.247 0X5947BB275C521040051D82396192181B413227A3 | 0.0037% |
100 | Binance US | LINK-BTC | $24.76 0.0075841 Eth | $17,920.23 723.625 LINK | 0.0029% |
Contract Source Code Verified (Exact Match)
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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