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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,919 ( -0.007%)
Market
Price
$25.01 @ 0.007600 ETH (-3.75%)
Onchain Market Cap
$25,010,000,000.00
Circulating Supply Market Cap
$15,954,707,723.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.98 0.0075923 Eth | $92,098,660.00 3,579,608.320 LINK | 19.3150% |
2 | Coinbase Exchange | LINK-USD | $24.99 0.0075918 Eth | $45,972,694.00 1,840,011.760 LINK | 9.9284% |
3 | Bybit | LINK-USDT | $24.97 0.0075894 Eth | $32,503,739.00 1,262,183.203 LINK | 6.8106% |
4 | Slex | LINK-USDT | $25.02 0.0075957 Eth | $25,890,953.00 1,010,719.420 LINK | 5.4537% |
5 | WhiteBIT | LINK-USDT | $24.94 0.0075761 Eth | $19,120,394.00 766,525.550 LINK | 4.1361% |
6 | P2B | LINK-USDT | $25.01 0.0075937 Eth | $18,696,232.00 747,584.160 LINK | 4.0339% |
7 | HTX | LINK-USDT | $24.98 0.0075926 Eth | $16,464,201.00 640,957.612 LINK | 3.4585% |
8 | OKX | LINK-USDT | $24.99 0.0075960 Eth | $16,073,433.00 624,860.148 LINK | 3.3717% |
9 | Gate.io | LINK-USDT | $24.95 0.0075814 Eth | $12,870,682.00 497,452.020 LINK | 2.6842% |
10 | DigiFinex | LINK-USDT | $25.00 0.0075973 Eth | $11,645,742.00 465,885.100 LINK | 2.5138% |
11 | XT.COM | LINK-USDT | $25.02 0.0075957 Eth | $9,150,377.00 355,648.570 LINK | 1.9190% |
12 | Binance | LINK-FDUSD | $24.96 0.0075860 Eth | $9,138,645.00 354,989.390 LINK | 1.9155% |
13 | Azbit | LINK-USDT | $25.02 0.0075957 Eth | $9,100,057.00 353,711.043 LINK | 1.9086% |
14 | MEXC | LINK-USDT | $25.01 0.0075935 Eth | $9,096,071.00 363,735.010 LINK | 1.9627% |
15 | Coinstore | LINK-USDT | $24.97 0.0075815 Eth | $8,187,908.00 318,636.390 LINK | 1.7193% |
16 | KuCoin | LINK-USDT | $24.98 0.0075925 Eth | $7,551,668.00 302,286.197 LINK | 1.6311% |
17 | Bitunix | LINK-USDT | $25.01 0.0075942 Eth | $7,149,634.00 285,913.920 LINK | 1.5427% |
18 | Binance | LINK-USDC | $25.00 0.0075958 Eth | $6,483,522.00 251,489.440 LINK | 1.3570% |
19 | CoinW | LINK-USDT | $24.95 0.0075813 Eth | $5,745,945.00 230,294.370 LINK | 1.2426% |
20 | Kraken | LINK-USD | $24.98 0.0075911 Eth | $5,688,393.00 227,727.570 LINK | 1.2288% |
21 | BTSE | LINK-USDT | $25.03 0.0076017 Eth | $5,636,904.00 225,226.131 LINK | 1.2153% |
22 | Hotcoin | LINK-USDT | $25.02 0.0075978 Eth | $5,331,812.00 213,113.260 LINK | 1.1499% |
23 | Sushiswap | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.95 0.0075835 Eth | $5,160,533.00 51,512.955 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.2780% |
24 | BYDFi | LINK-USDT | $25.04 0.0076090 Eth | $5,073,824.00 202,655.100 LINK | 1.0935% |
25 | LATOKEN | LINK-USDT | $24.97 0.0075894 Eth | $4,360,066.00 174,628.155 LINK | 0.9423% |
26 | LBank | LINK-USDT | $25.01 0.0075934 Eth | $4,327,043.00 173,021.810 LINK | 0.9336% |
27 | QMall | LINK-USDT | $25.02 0.0076110 Eth | $3,738,004.00 145,253.968 LINK | 0.7838% |
28 | Bitvavo | LINK-EUR | $25.00 0.0075961 Eth | $3,321,440.00 132,860.932 LINK | 0.7169% |
29 | FMCPAY | LINK-USDT | $24.99 0.0075930 Eth | $3,213,885.00 125,584.432 LINK | 0.6776% |
30 | Coinbase Exchange | LINK-EUR | $25.04 0.0076031 Eth | $3,153,029.00 125,918.020 LINK | 0.6794% |
31 | Dex-Trade | LINK-USDT | $25.02 0.0075991 Eth | $2,759,052.00 110,280.730 LINK | 0.5951% |
32 | CoinEx | LINK-USDT | $24.97 0.0075869 Eth | $2,493,604.00 96,575.062 LINK | 0.5211% |
33 | WhiteBIT | LINK-BTC | $24.98 0.0075949 Eth | $2,328,273.00 93,188.130 LINK | 0.5028% |
34 | Coinbase Exchange | LINK-GBP | $24.96 0.0075848 Eth | $2,076,941.00 83,222.370 LINK | 0.4491% |
35 | WhiteBIT | LINK-TRY | $25.05 0.0076087 Eth | $1,730,712.00 69,086.420 LINK | 0.3728% |
36 | FMCPAY | LINK-ETH | $24.96 0.0075842 Eth | $1,660,374.00 66,015.680 LINK | 0.3562% |
37 | FMCPAY | LINK-BTC | $25.01 0.0075931 Eth | $1,492,063.00 58,718.200 LINK | 0.3168% |
38 | PointPay | LINK-USDT | $25.02 0.0075965 Eth | $1,414,524.00 54,868.944 LINK | 0.2961% |
39 | Kraken | LINK-EUR | $25.01 0.0076015 Eth | $1,343,613.00 53,715.864 LINK | 0.2898% |
40 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.94 0.0075733 Eth | $1,239,760.00 49,242.882 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2657% |
41 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.97 0.0075877 Eth | $1,017,254.00 40,512.918 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2186% |
42 | OKX | LINK-USDC | $24.97 0.0075882 Eth | $1,012,062.00 39,564.169 LINK | 0.2135% |
43 | EXMO | LINK-USDT | $25.01 0.0075946 Eth | $980,158.00 39,196.611 LINK | 0.2115% |
44 | Phemex | LINK-USDT | $24.99 0.0075936 Eth | $961,051.00 38,461.710 LINK | 0.2075% |
45 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.00 0.0075926 Eth | $934,819.00 37,107.986 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2002% |
46 | Gemini | LINK-USD | $25.04 0.0076101 Eth | $905,950.00 36,181.242 LINK | 0.1952% |
47 | BigONE | LINK-USDT | $25.08 0.0076251 Eth | $777,785.00 31,008.220 LINK | 0.1673% |
48 | EarnBIT | LINK-USDT | $24.99 0.0075972 Eth | $768,221.00 29,864.929 LINK | 0.1611% |
49 | Trubit | LINK-USDT | $25.01 0.0075943 Eth | $763,172.00 29,868.910 LINK | 0.1612% |
50 | Bitbank | LINK-JPY | $25.13 0.0076317 Eth | $758,244.00 30,174.865 LINK | 0.1628% |
51 | Bybit | LINK-USDC | $24.99 0.0075936 Eth | $704,861.00 27,410.571 LINK | 0.1479% |
52 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.94 0.0075733 Eth | $655,934.00 25,535.276 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1378% |
53 | Binance | LINK-TRY | $25.12 0.0076339 Eth | $639,242.00 24,791.070 LINK | 0.1338% |
54 | Binance | LINK-EUR | $25.07 0.0076149 Eth | $631,498.00 24,417.210 LINK | 0.1318% |
55 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $25.01 0.0075949 Eth | $582,381.00 22,755.375 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1228% |
56 | Bitkub | LINK-THB | $25.19 0.0076502 Eth | $563,594.00 22,377.918 LINK | 0.1207% |
57 | WhiteBIT | LINK-EUR | $25.10 0.0076226 Eth | $550,277.00 21,925.980 LINK | 0.1183% |
58 | Coinbase Exchange | LINK-USDT | $25.02 0.0076033 Eth | $534,148.00 21,351.565 LINK | 0.1152% |
59 | QMall | LINK-USDC | $25.04 0.0076058 Eth | $522,328.00 20,262.301 LINK | 0.1093% |
60 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.11 0.0076311 Eth | $451,418.00 17,860.631 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0964% |
61 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.07 0.0076122 Eth | $435,218.00 446,648.283 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.4100% |
62 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.01 0.0076018 Eth | $422,800.00 16,748.193 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0904% |
63 | LATOKEN | LINK-BTC | $24.95 0.0075835 Eth | $419,827.00 16,824.076 LINK | 0.0908% |
64 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $25.01 0.0076002 Eth | $381,824.00 30,862.562 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1665% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.07 0.0076120 Eth | $338,138.00 348,007.246 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.8778% |
66 | itBit | LINK-USD | $25.03 0.0075996 Eth | $318,542.00 12,726.419 LINK | 0.0687% |
67 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.97 0.0075830 Eth | $305,913.00 11,851.144 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0639% |
68 | BitMart | LINK-BTC | $24.97 0.0075834 Eth | $290,211.00 11,623.200 LINK | 0.0627% |
69 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.94 0.0075792 Eth | $287,116.00 11,274.024 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0608% |
70 | BitDelta | LINK-USDT | $24.98 0.0075906 Eth | $271,782.00 10,576.000 LINK | 0.0571% |
71 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $25.07 0.0076196 Eth | $260,653.00 10,100.643 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0545% |
72 | Slex | LINK-ETH | $24.96 0.0075852 Eth | $251,923.00 9,984.090 LINK | 0.0539% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.00 0.0075921 Eth | $229,752.00 9,094.596 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0491% |
74 | Coinbase Exchange | LINK-BTC | $24.99 0.0075889 Eth | $211,610.00 8,466.250 LINK | 0.0457% |
75 | Hotcoin | LINK-BTC | $25.02 0.0075966 Eth | $200,045.00 7,996.090 LINK | 0.0431% |
76 | bitcastle | LINK-USDT | $25.00 0.0075930 Eth | $197,923.00 7,699.120 LINK | 0.0415% |
77 | BitStorage | LINK-ETH | $24.96 0.0075848 Eth | $173,690.00 6,959.830 LINK | 0.0376% |
78 | Binance US | LINK-USDT | $25.00 0.0075943 Eth | $165,537.00 6,620.399 LINK | 0.0357% |
79 | BYDFi | LINK-USDC | $25.00 0.0076040 Eth | $156,006.00 6,239.460 LINK | 0.0337% |
80 | PointPay | LINK-BTC | $24.94 0.0075809 Eth | $152,203.00 5,952.088 LINK | 0.0321% |
81 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.94 0.0075742 Eth | $140,218.00 6,716.534 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0362% |
82 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.90 0.0075670 Eth | $133,765.00 5,190.437 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0280% |
83 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.94 0.0075733 Eth | $122,784.00 126,767.966 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6840% |
84 | Mercado Bitcoin | LINK-BRL | $25.04 0.0076101 Eth | $112,218.00 4,481.596 LINK | 0.0242% |
85 | BitMart | LINK-ETH | $24.96 0.0075824 Eth | $105,051.00 4,207.960 LINK | 0.0227% |
86 | Bitso | LINK-USD | $24.99 0.0075936 Eth | $97,668.00 3,908.125 LINK | 0.0211% |
87 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $25.12 0.0076268 Eth | $79,815.00 959.947 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0052% |
88 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.92 0.0075689 Eth | $72,394.00 2,851.062 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0154% |
89 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $25.02 0.0076035 Eth | $65,512.00 2,591.049 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0140% |
90 | Hotcoin | LINK-ETH | $24.96 0.0075885 Eth | $63,547.00 2,545.850 LINK | 0.0137% |
91 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $25.06 0.0076086 Eth | $55,657.00 2,203.528 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0119% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.97 0.0075811 Eth | $52,706.00 2,002.106 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0108% |
93 | Gemini | LINK-BTC | $25.12 0.0076335 Eth | $25,976.00 1,034.233 LINK | 0.0056% |
94 | Bitstamp | LINK-BTC | $25.08 0.0076237 Eth | $25,444.00 1,014.339 LINK | 0.0055% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $25.07 0.0076120 Eth | $25,281.00 976.199 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0053% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.07 0.0076196 Eth | $24,884.00 986.203 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0053% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $25.10 0.0076285 Eth | $23,928.00 937.297 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0051% |
98 | Dex-Trade | LINK-ETH | $25.04 0.0076019 Eth | $22,157.00 885.000 LINK | 0.0048% |
99 | HTX | LINK-BTC | $25.09 0.0076244 Eth | $16,906.71 658.957 LINK | 0.0036% |
100 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $25.04 0.0076022 Eth | $16,273.46 48.385 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0003% |
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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