ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,031 ( 0.017%)
Market
Price
$23.33 @ 0.006842 ETH (+1.33%)
Onchain Market Cap
$23,330,000,000.00
Circulating Supply Market Cap
$14,716,941,442.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
1,097 LINKValue
$25,593.01 ( ~7.5054 Eth) [0.0001%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $23.38 0.0068560 Eth | $95,698,453.00 4,171,698.990 LINK | 20.7921% |
2 | Coinbase Exchange | LINK-USD | $23.36 0.0068482 Eth | $37,303,993.00 1,597,054.240 LINK | 7.9599% |
3 | Bitget | LINK-USDT | $23.30 0.0068289 Eth | $27,664,693.00 1,206,650.224 LINK | 6.0141% |
4 | MEXC | LINK-USDT | $23.30 0.0068337 Eth | $27,103,882.00 1,163,111.610 LINK | 5.7971% |
5 | Slex | LINK-USDT | $23.32 0.0068377 Eth | $22,878,318.00 999,417.110 LINK | 4.9812% |
6 | Bybit | LINK-USDT | $23.33 0.0068381 Eth | $22,527,015.00 983,080.639 LINK | 4.8998% |
7 | P2B | LINK-USDT | $23.32 0.0068401 Eth | $19,609,261.00 840,704.080 LINK | 4.1901% |
8 | OKX | LINK-USDT | $23.30 0.0068344 Eth | $18,234,290.00 795,004.685 LINK | 3.9624% |
9 | CoinW | LINK-USDT | $23.34 0.0068435 Eth | $16,291,191.00 698,109.070 LINK | 3.4794% |
10 | DigiFinex | LINK-USDT | $23.30 0.0068301 Eth | $12,913,160.00 554,217.020 LINK | 2.7623% |
11 | HTX | LINK-USDT | $23.34 0.0068438 Eth | $11,244,132.00 491,508.491 LINK | 2.4497% |
12 | XT.COM | LINK-USDT | $23.35 0.0068401 Eth | $9,564,328.00 416,902.060 LINK | 2.0779% |
13 | Azbit | LINK-USDT | $23.31 0.0068374 Eth | $9,536,611.00 415,673.683 LINK | 2.0718% |
14 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $23.39 0.0068605 Eth | $9,475,552.00 405,445.168 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.0208% |
15 | Coinstore | LINK-USDT | $23.25 0.0068154 Eth | $8,240,255.00 359,461.820 LINK | 1.7916% |
16 | Bitunix | LINK-USDT | $23.32 0.0068362 Eth | $8,006,249.00 343,418.570 LINK | 1.7116% |
17 | BTSE | LINK-USDT | $23.35 0.0068425 Eth | $6,929,286.00 296,762.136 LINK | 1.4791% |
18 | Biconomy.com | LINK-USDT | $23.31 0.0068318 Eth | $6,506,001.00 283,880.454 LINK | 1.4149% |
19 | Binance | LINK-FDUSD | $23.35 0.0068436 Eth | $6,248,052.00 272,710.890 LINK | 1.3592% |
20 | BYDFi | LINK-USDT | $23.31 0.0068386 Eth | $6,176,089.00 264,905.660 LINK | 1.3203% |
21 | Kraken | LINK-USD | $23.35 0.0068478 Eth | $5,318,417.00 227,763.813 LINK | 1.1352% |
22 | Hotcoin | LINK-USDT | $23.32 0.0068396 Eth | $5,274,694.00 226,159.590 LINK | 1.1272% |
23 | KuCoin | LINK-USDT | $23.30 0.0068295 Eth | $4,734,226.00 203,205.470 LINK | 1.0128% |
24 | LATOKEN | LINK-USDT | $23.29 0.0068282 Eth | $4,616,506.00 198,192.542 LINK | 0.9878% |
25 | LBank | LINK-USDT | $23.28 0.0068255 Eth | $4,486,964.00 192,699.530 LINK | 0.9604% |
26 | Dex-Trade | LINK-USDT | $23.32 0.0068424 Eth | $3,077,677.00 131,949.119 LINK | 0.6576% |
27 | FMCPAY | LINK-USDT | $23.31 0.0068366 Eth | $2,916,923.00 127,340.777 LINK | 0.6347% |
28 | Binance | LINK-USDC | $23.39 0.0068521 Eth | $2,860,661.00 124,541.630 LINK | 0.6207% |
29 | Coinbase Exchange | LINK-GBP | $23.37 0.0068534 Eth | $2,542,864.00 108,808.900 LINK | 0.5423% |
30 | Dcoin | LINK-USDT | $23.37 0.0068494 Eth | $2,478,667.00 106,083.000 LINK | 0.5287% |
31 | Bitvavo | LINK-EUR | $23.34 0.0068433 Eth | $1,969,836.00 84,402.648 LINK | 0.4207% |
32 | PointPay | LINK-USDT | $23.31 0.0068346 Eth | $1,600,291.00 69,762.866 LINK | 0.3477% |
33 | FMCPAY | LINK-ETH | $23.31 0.0068350 Eth | $1,497,655.00 64,376.480 LINK | 0.3209% |
34 | EXMO | LINK-USDT | $23.38 0.0068541 Eth | $1,463,436.00 62,598.700 LINK | 0.3120% |
35 | FMCPAY | LINK-BTC | $23.32 0.0068391 Eth | $1,430,606.00 62,075.400 LINK | 0.3094% |
36 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.30 0.0068305 Eth | $1,422,946.00 61,009.562 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3041% |
37 | WhiteBIT | LINK-TRY | $23.31 0.0068354 Eth | $1,383,136.00 59,339.320 LINK | 0.2958% |
38 | WhiteBIT | LINK-BTC | $23.31 0.0068367 Eth | $1,382,441.00 59,299.730 LINK | 0.2956% |
39 | Bybit | LINK-USDC | $23.36 0.0068486 Eth | $1,342,261.00 58,722.078 LINK | 0.2927% |
40 | CoinEx | LINK-USDT | $23.33 0.0068417 Eth | $1,248,975.00 54,567.176 LINK | 0.2720% |
41 | Bitbank | LINK-JPY | $23.42 0.0068670 Eth | $1,126,383.00 48,087.939 LINK | 0.2397% |
42 | Phemex | LINK-USDT | $23.26 0.0068195 Eth | $1,051,552.00 45,199.730 LINK | 0.2253% |
43 | Coinbase Exchange | LINK-USDT | $23.39 0.0068602 Eth | $1,031,099.00 44,077.439 LINK | 0.2197% |
44 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.40 0.0068593 Eth | $957,807.00 68,719.217 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3425% |
45 | Coinbase Exchange | LINK-EUR | $23.33 0.0068417 Eth | $895,840.00 38,398.300 LINK | 0.1914% |
46 | EarnBIT | LINK-USDT | $23.24 0.0068132 Eth | $860,305.00 37,587.386 LINK | 0.1873% |
47 | BigONE | LINK-USDT | $23.32 0.0068369 Eth | $845,043.00 36,232.480 LINK | 0.1806% |
48 | itBit | LINK-USD | $23.41 0.0068634 Eth | $755,024.00 32,252.195 LINK | 0.1607% |
49 | Binance | LINK-TRY | $23.30 0.0068331 Eth | $630,961.00 27,367.220 LINK | 0.1364% |
50 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.30 0.0068309 Eth | $554,566.00 23,850.081 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1189% |
51 | Gemini | LINK-USD | $23.38 0.0068567 Eth | $536,270.00 22,936.145 LINK | 0.1143% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.31 0.0068340 Eth | $534,135.00 22,636.513 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1128% |
53 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.38 0.0068542 Eth | $533,716.00 22,874.968 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1140% |
54 | Koinpark | LINK-USDT | $23.31 0.0068374 Eth | $500,368.00 21,461.737 LINK | 0.1070% |
55 | WhiteBIT | LINK-EUR | $23.37 0.0068507 Eth | $459,020.00 19,637.750 LINK | 0.0979% |
56 | GMO Japan | LINK-JPY | $23.34 0.0068448 Eth | $414,417.00 17,755.400 LINK | 0.0885% |
57 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.36 0.0068481 Eth | $408,093.00 17,763.444 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0885% |
58 | Slex | LINK-ETH | $23.35 0.0068433 Eth | $404,694.00 17,380.330 LINK | 0.0866% |
59 | HashKey Exchange | LINK-USD | $23.35 0.0068488 Eth | $377,161.00 16,440.491 LINK | 0.0819% |
60 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.30 0.0068330 Eth | $362,042.00 356,178.496 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.7752% |
61 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.30 0.0068317 Eth | $359,043.00 15,452.944 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0770% |
62 | BitMart | LINK-BTC | $23.30 0.0068338 Eth | $334,878.00 14,370.820 LINK | 0.0716% |
63 | OKX | LINK-USDC | $23.36 0.0068520 Eth | $293,880.00 12,851.926 LINK | 0.0641% |
64 | BitDelta | LINK-USDT | $23.30 0.0068339 Eth | $272,615.00 11,908.000 LINK | 0.0594% |
65 | Bitci TR | LINK-TRY | $23.17 0.0067880 Eth | $233,226.00 10,146.140 LINK | 0.0506% |
66 | Bitkub | LINK-THB | $23.34 0.0068447 Eth | $213,184.00 9,133.547 LINK | 0.0455% |
67 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.47 0.0068842 Eth | $210,484.00 9,037.293 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0450% |
68 | Coinbase Exchange | LINK-BTC | $23.30 0.0068335 Eth | $208,503.00 8,947.990 LINK | 0.0446% |
69 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.30 0.0068327 Eth | $193,310.00 8,437.892 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0421% |
70 | Hotcoin | LINK-BTC | $23.38 0.0068463 Eth | $184,729.00 7,902.800 LINK | 0.0394% |
71 | LATOKEN | LINK-BTC | $23.31 0.0068325 Eth | $180,223.00 7,732.232 LINK | 0.0385% |
72 | Binance | LINK-BRL | $23.55 0.0068957 Eth | $143,110.00 6,236.240 LINK | 0.0311% |
73 | PointPay | LINK-BTC | $23.32 0.0068381 Eth | $138,374.00 5,998.493 LINK | 0.0299% |
74 | BitMart | LINK-ETH | $23.32 0.0068361 Eth | $133,563.00 5,728.180 LINK | 0.0285% |
75 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.25 0.0068167 Eth | $121,070.00 5,281.226 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0263% |
76 | Bitso | LINK-USD | $23.35 0.0068443 Eth | $109,396.00 4,685.846 LINK | 0.0234% |
77 | BitStorage | LINK-ETH | $23.39 0.0068511 Eth | $103,384.00 4,419.720 LINK | 0.0220% |
78 | Binance US | LINK-USDT | $23.34 0.0068430 Eth | $97,378.00 4,171.849 LINK | 0.0208% |
79 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.28 0.0068258 Eth | $95,389.00 4,102.028 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0204% |
80 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $23.31 0.0068340 Eth | $90,406.00 3,950.434 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0197% |
81 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.28 0.0068260 Eth | $87,682.00 86,692.958 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4321% |
82 | Coinbase Exchange | LINK-ETH | $23.38 0.0068544 Eth | $78,505.00 3,357.880 LINK | 0.0167% |
83 | Hotcoin | LINK-ETH | $23.30 0.0068286 Eth | $64,575.00 2,771.870 LINK | 0.0138% |
84 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.25 0.0068177 Eth | $59,258.00 2,546.838 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0127% |
85 | Nonkyc.io | LINK-BTC | $23.41 0.0068647 Eth | $54,033.00 2,343.951 LINK | 0.0117% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.31 0.0068358 Eth | $52,275.00 2,230.477 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0111% |
87 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.37 0.0068528 Eth | $39,875.00 1,721.544 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0086% |
88 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $23.42 0.0068651 Eth | $27,475.00 1,191.277 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0059% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.32 0.0068402 Eth | $17,896.90 784.651 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0039% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.36 0.0068505 Eth | $17,731.32 766.852 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0038% |
91 | Bitexen | LINK-TRY | $23.14 0.0067816 Eth | $17,424.24 753.126 LINK | 0.0038% |
92 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.29 0.0068310 Eth | $15,861.51 675.166 0X5947BB275C521040051D82396192181B413227A3 | 0.0034% |
93 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.43 0.0068723 Eth | $15,284.96 15,030.064 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0749% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.23 0.0068108 Eth | $14,828.75 647.504 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0032% |
95 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.42 0.0068663 Eth | $14,359.05 615.375 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0031% |
96 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $23.29 0.0068303 Eth | $13,566.88 17.686 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
97 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.39 0.0068588 Eth | $13,478.34 579.597 0X5947BB275C521040051D82396192181B413227A3 | 0.0029% |
98 | KuCoin | LINK-KCS | $23.43 0.0068678 Eth | $10,940.01 466.955 LINK | 0.0023% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.30 0.0068319 Eth | $8,134.63 354.799 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0018% |
100 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.33 0.0068405 Eth | $7,538.40 322.693 0X5947BB275C521040051D82396192181B413227A3 | 0.0016% |
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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