ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,337 ( -0.002%)
Market
Price
$12.31 @ 0.004649 ETH (+2.61%)
Onchain Market Cap
$12,310,000,000.00
Circulating Supply Market Cap
$7,724,328,538.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
137.63731318 LINKValue
$1,694.32 ( ~0.639857294193775 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $12.31 0.0046412 Eth | $37,332,371.00 3,069,742.230 LINK | 15.7591% |
2 | WhiteBIT | LINK-USDT | $12.32 0.0046474 Eth | $29,648,344.00 2,407,005.180 LINK | 12.3568% |
3 | Coinbase Exchange | LINK-USD | $12.33 0.0046543 Eth | $18,868,105.00 1,530,880.740 LINK | 7.8591% |
4 | HTX | LINK-USDT | $12.32 0.0046515 Eth | $13,393,406.00 1,100,701.485 LINK | 5.6507% |
5 | Bybit | LINK-USDT | $12.33 0.0046547 Eth | $11,595,557.00 955,236.756 LINK | 4.9039% |
6 | Bitget | LINK-USDT | $12.33 0.0046565 Eth | $10,258,868.00 843,054.776 LINK | 4.3280% |
7 | OKX | LINK-USDT | $12.33 0.0046550 Eth | $8,100,432.00 667,543.459 LINK | 3.4270% |
8 | BTSE | LINK-USDT | $12.33 0.0046521 Eth | $7,994,318.00 648,462.076 LINK | 3.3290% |
9 | Upbit | LINK-KRW | $12.40 0.0046847 Eth | $7,704,928.00 621,162.628 LINK | 3.1889% |
10 | P2B | LINK-USDT | $12.32 0.0046537 Eth | $7,527,159.00 610,797.610 LINK | 3.1356% |
11 | Slex | LINK-USDT | $12.31 0.0046445 Eth | $6,557,700.00 539,239.230 LINK | 2.7683% |
12 | Gate.io | LINK-USDT | $12.32 0.0046538 Eth | $6,455,824.00 529,734.050 LINK | 2.7195% |
13 | Azbit | LINK-USDT | $12.32 0.0046524 Eth | $5,489,768.00 451,313.860 LINK | 2.3169% |
14 | DigiFinex | LINK-USDT | $12.32 0.0046534 Eth | $5,164,551.00 419,109.310 LINK | 2.1516% |
15 | Biconomy.com | LINK-USDT | $12.33 0.0046525 Eth | $4,173,516.00 343,365.510 LINK | 1.7627% |
16 | XT.COM | LINK-USDT | $12.33 0.0046521 Eth | $3,710,120.00 304,969.410 LINK | 1.5656% |
17 | Bitunix | LINK-USDT | $12.29 0.0046410 Eth | $3,685,433.00 299,834.060 LINK | 1.5393% |
18 | CoinW | LINK-USDT | $12.29 0.0046411 Eth | $3,641,068.00 296,249.750 LINK | 1.5209% |
19 | Hotcoin | LINK-USDT | $12.34 0.0046558 Eth | $3,278,956.00 265,788.070 LINK | 1.3645% |
20 | Coinstore | LINK-USDT | $12.30 0.0046453 Eth | $2,671,170.00 219,523.220 LINK | 1.1270% |
21 | Binance | LINK-FDUSD | $12.31 0.0046476 Eth | $2,443,073.00 200,802.410 LINK | 1.0309% |
22 | LBank | LINK-USDT | $12.30 0.0046462 Eth | $2,232,590.00 181,450.740 LINK | 0.9315% |
23 | KuCoin | LINK-USDT | $12.32 0.0046513 Eth | $2,088,635.00 169,570.640 LINK | 0.8705% |
24 | BYDFi | LINK-USDT | $12.31 0.0046500 Eth | $1,856,943.00 150,823.020 LINK | 0.7743% |
25 | ProBit Global | LINK-USDT | $12.30 0.0046431 Eth | $1,589,129.00 129,238.751 LINK | 0.6635% |
26 | WhiteBIT | LINK-BTC | $12.30 0.0046401 Eth | $1,566,026.00 127,357.900 LINK | 0.6538% |
27 | Trubit | LINK-USDT | $12.32 0.0046509 Eth | $1,529,827.00 125,396.300 LINK | 0.6437% |
28 | FameEX | LINK-USDT | $12.31 0.0046459 Eth | $1,485,212.00 122,122.367 LINK | 0.6269% |
29 | Bitvavo | LINK-EUR | $12.33 0.0046512 Eth | $1,397,867.00 113,410.999 LINK | 0.5822% |
30 | AscendEX (BitMax) | LINK-USDT | $12.33 0.0046586 Eth | $1,299,596.00 105,360.500 LINK | 0.5409% |
31 | Dex-Trade | LINK-USDT | $12.32 0.0046450 Eth | $1,264,582.00 102,673.950 LINK | 0.5271% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.24 0.0046220 Eth | $1,143,476.00 94,946.357 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4874% |
33 | CoinEx | LINK-USDT | $12.32 0.0046483 Eth | $1,034,634.00 84,946.968 LINK | 0.4361% |
34 | HashKey Global | LINK-USDT | $12.34 0.0046585 Eth | $1,002,913.00 81,788.041 LINK | 0.4199% |
35 | Azbit | LINK-ETH | $12.31 0.0046458 Eth | $988,382.00 81,891.100 LINK | 0.4204% |
36 | Kraken | LINK-XBT | $12.31 0.0046496 Eth | $745,962.00 60,587.592 LINK | 0.3110% |
37 | LATOKEN | LINK-USDT | $12.30 0.0046429 Eth | $690,162.00 56,130.963 LINK | 0.2882% |
38 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.29 0.0046434 Eth | $675,591.00 55,865.652 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2868% |
39 | itBit | LINK-USD | $12.32 0.0046524 Eth | $632,006.00 51,299.182 LINK | 0.2634% |
40 | PointPay | LINK-USDT | $12.32 0.0046496 Eth | $611,920.00 50,290.251 LINK | 0.2582% |
41 | AscendEX (BitMax) | LINK-BTC | $12.27 0.0046346 Eth | $606,953.00 49,460.800 LINK | 0.2539% |
42 | LATOKEN | LINK-BTC | $12.30 0.0046431 Eth | $585,295.00 47,581.424 LINK | 0.2443% |
43 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.32 0.0046513 Eth | $538,593.00 44,640.849 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2292% |
44 | ProBit Global | LINK-BTC | $12.32 0.0046521 Eth | $533,379.00 43,301.979 LINK | 0.2223% |
45 | tanX | LINK-USDC | $12.33 0.0046489 Eth | $509,681.00 41,917.980 LINK | 0.2152% |
46 | BigONE | LINK-USDT | $12.30 0.0046405 Eth | $505,278.00 41,094.200 LINK | 0.2110% |
47 | EXMO | LINK-USDT | $12.33 0.0046545 Eth | $501,661.00 40,700.449 LINK | 0.2089% |
48 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $12.30 0.0046448 Eth | $489,843.00 40,726.936 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.2091% |
49 | Bybit | LINK-USDC | $12.32 0.0046517 Eth | $426,668.00 34,953.695 LINK | 0.1794% |
50 | Phemex | LINK-USDT | $12.33 0.0046521 Eth | $401,874.00 32,597.830 LINK | 0.1673% |
51 | EarnBIT | LINK-USDT | $12.33 0.0046515 Eth | $376,861.00 31,045.209 LINK | 0.1594% |
52 | WhiteBIT | LINK-EUR | $12.31 0.0046470 Eth | $334,580.00 27,186.600 LINK | 0.1396% |
53 | Coinbase Exchange | LINK-BTC | $12.40 0.0046816 Eth | $314,173.00 25,345.280 LINK | 0.1301% |
54 | Binance | LINK-TRY | $12.33 0.0046536 Eth | $305,834.00 25,085.580 LINK | 0.1288% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.33 0.0046549 Eth | $289,983.00 23,985.562 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1231% |
56 | WhiteBIT | LINK-TRY | $12.32 0.0046522 Eth | $284,818.00 23,117.260 LINK | 0.1187% |
57 | Coinbase Exchange | LINK-USDT | $12.39 0.0046761 Eth | $278,815.00 22,511.981 LINK | 0.1156% |
58 | Gemini | LINK-USD | $12.35 0.0046639 Eth | $266,025.00 21,540.464 LINK | 0.1106% |
59 | Bitbank | LINK-JPY | $12.31 0.0046490 Eth | $224,703.00 18,254.513 LINK | 0.0937% |
60 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.31 0.0046494 Eth | $224,216.00 18,558.822 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0953% |
61 | BitMart | LINK-BTC | $12.30 0.0046413 Eth | $206,755.00 16,812.680 LINK | 0.0863% |
62 | Bitso | LINK-USD | $12.31 0.0046406 Eth | $191,189.00 15,529.204 LINK | 0.0797% |
63 | Coinbase Exchange | LINK-GBP | $12.30 0.0046430 Eth | $180,731.00 14,692.970 LINK | 0.0754% |
64 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $12.31 0.0046478 Eth | $179,642.00 14,742.727 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0757% |
65 | OKX | LINK-USDC | $12.31 0.0046490 Eth | $173,474.00 14,248.412 LINK | 0.0731% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.30 0.0046439 Eth | $169,849.00 168,085.637 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.8629% |
67 | Slex | LINK-BTC | $12.32 0.0046488 Eth | $167,025.00 13,643.700 LINK | 0.0700% |
68 | BitDelta | LINK-USDT | $12.31 0.0046447 Eth | $161,896.00 13,306.000 LINK | 0.0683% |
69 | BYDFi | LINK-USDC | $12.34 0.0046568 Eth | $147,309.00 11,942.270 LINK | 0.0613% |
70 | Bitci TR | LINK-TRY | $12.27 0.0046312 Eth | $126,339.00 10,356.432 LINK | 0.0532% |
71 | PointPay | LINK-BTC | $12.32 0.0046426 Eth | $111,415.00 9,100.527 LINK | 0.0467% |
72 | GMO Japan | LINK-JPY | $12.30 0.0046457 Eth | $110,240.00 8,960.900 LINK | 0.0460% |
73 | Mercado Bitcoin | LINK-BRL | $12.39 0.0046755 Eth | $93,620.00 7,556.895 LINK | 0.0388% |
74 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.24 0.0046210 Eth | $88,804.00 87,948.124 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4515% |
75 | Coinbase Exchange | LINK-ETH | $12.31 0.0046488 Eth | $81,120.00 6,589.160 LINK | 0.0338% |
76 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $12.30 0.0046452 Eth | $72,252.00 5,996.548 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0308% |
77 | Bitkub | LINK-THB | $12.31 0.0046487 Eth | $70,904.00 5,758.455 LINK | 0.0296% |
78 | BitStorage | LINK-ETH | $12.32 0.0046528 Eth | $66,718.00 5,415.090 LINK | 0.0278% |
79 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.30 0.0046439 Eth | $66,180.00 5,430.729 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0279% |
80 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $12.28 0.0046373 Eth | $58,813.00 4,856.016 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0249% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.32 0.0046505 Eth | $54,261.00 4,445.003 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0228% |
82 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $12.30 0.0046465 Eth | $53,676.00 4,478.923 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0230% |
83 | KuCoin | LINK-KCS | $12.31 0.0046488 Eth | $40,804.00 3,314.590 LINK | 0.0170% |
84 | Bitcointry | LINK-USDT | $12.32 0.0046488 Eth | $39,249.00 3,247.951 LINK | 0.0167% |
85 | Binance US | LINK-USDT | $12.32 0.0046481 Eth | $37,377.00 3,034.391 LINK | 0.0156% |
86 | EXMO | LINK-BTC | $12.32 0.0046511 Eth | $35,867.00 2,910.836 LINK | 0.0149% |
87 | PancakeSwap V3 (BSC) | 0X0E09FABB73BD3ADE0A17ECC321FD13A19E81CE82-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $12.30 0.0046448 Eth | $35,654.00 19,328.172 0X0E09FABB73BD3ADE0A17ECC321FD13A19E81CE82 | 0.0992% |
88 | Nonkyc.io | LINK-BTC | $12.27 0.0046324 Eth | $34,813.00 2,865.813 LINK | 0.0147% |
89 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.32 0.0046513 Eth | $32,848.00 32,475.691 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1667% |
90 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $12.34 0.0046591 Eth | $31,578.00 47.714 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.31 0.0046501 Eth | $29,918.00 2,477.883 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0127% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD93F7E271CB87C23AAA73EDC008A79646D1F9912 | $12.31 0.0046481 Eth | $29,353.00 2,464.401 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0127% |
93 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $12.33 0.0046586 Eth | $27,924.00 2,300.138 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0118% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.33 0.0046526 Eth | $25,675.00 2,134.050 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0110% |
95 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.24 0.0046220 Eth | $18,722.96 18,684.700 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0959% |
96 | CoinEx | LINK-BTC | $12.28 0.0046359 Eth | $16,926.53 1,387.675 LINK | 0.0071% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $12.37 0.0046731 Eth | $15,138.87 1,237.905 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0064% |
98 | PancakeSwap V3 (BSC) | 0X0E09FABB73BD3ADE0A17ECC321FD13A19E81CE82-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $12.30 0.0046448 Eth | $11,830.96 6,425.113 0X0E09FABB73BD3ADE0A17ECC321FD13A19E81CE82 | 0.0330% |
99 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $12.27 0.0046333 Eth | $11,570.76 961.944 0X5947BB275C521040051D82396192181B413227A3 | 0.0049% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $12.30 0.0046446 Eth | $8,849.82 727.057 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0037% |
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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