ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
727,045 ( -0.006%)
Market
Price
$25.03 @ 0.007174 ETH (+4.21%)
Onchain Market Cap
$25,030,000,000.00
Circulating Supply Market Cap
$15,776,004,149.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.014773427963343481 LINKValue
$0.37 ( ~0.000106044603344515 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Coinbase Exchange | LINK-USD | $25.05 0.0071653 Eth | $69,711,111.00 2,783,211.990 LINK | 13.1517% |
2 | MEXC | LINK-USDT | $25.05 0.0071667 Eth | $47,369,708.00 1,890,966.250 LINK | 8.9355% |
3 | Bybit | LINK-USDT | $25.02 0.0071605 Eth | $41,691,513.00 1,676,090.277 LINK | 7.9201% |
4 | OKX | LINK-USDT | $24.97 0.0071441 Eth | $30,333,703.00 1,221,460.074 LINK | 5.7718% |
5 | DigiFinex | LINK-USDT | $24.96 0.0071440 Eth | $25,314,489.00 1,014,208.440 LINK | 4.7925% |
6 | XT.COM | LINK-USDT | $25.04 0.0071638 Eth | $22,871,838.00 921,908.370 LINK | 4.3564% |
7 | WEEX | LINK-USDT | $24.96 0.0071388 Eth | $20,700,654.00 834,977.740 LINK | 3.9456% |
8 | FameEX | LINK-USDT | $24.96 0.0071430 Eth | $19,519,614.00 786,717.781 LINK | 3.7175% |
9 | Azbit | LINK-USDT | $24.99 0.0071530 Eth | $19,241,532.00 775,583.825 LINK | 3.6649% |
10 | Coinstore | LINK-USDT | $24.97 0.0071452 Eth | $16,584,108.00 669,117.970 LINK | 3.1618% |
11 | Bitunix | LINK-USDT | $25.08 0.0071717 Eth | $15,591,161.00 621,427.580 LINK | 2.9365% |
12 | HTX | LINK-USDT | $25.00 0.0071521 Eth | $12,943,407.00 523,276.979 LINK | 2.4727% |
13 | Binance | LINK-FDUSD | $24.99 0.0071530 Eth | $11,589,177.00 466,732.900 LINK | 2.2055% |
14 | BTSE | LINK-USDT | $25.08 0.0071696 Eth | $11,155,991.00 444,889.259 LINK | 2.1023% |
15 | BYDFi | LINK-USDT | $25.04 0.0071638 Eth | $11,103,221.00 443,398.480 LINK | 2.0952% |
16 | Coinbase Exchange | LINK-GBP | $25.05 0.0071656 Eth | $11,056,750.00 441,435.900 LINK | 2.0859% |
17 | KuCoin | LINK-USDT | $25.00 0.0071539 Eth | $10,011,328.00 400,429.820 LINK | 1.8922% |
18 | LATOKEN | LINK-USDT | $25.04 0.0071635 Eth | $9,417,273.00 376,075.357 LINK | 1.7771% |
19 | Kraken | LINK-USD | $25.02 0.0071591 Eth | $9,197,902.00 367,628.735 LINK | 1.7372% |
20 | Biconomy.com | LINK-USDT | $25.08 0.0071707 Eth | $8,932,640.00 360,026.890 LINK | 1.7013% |
21 | QMall | LINK-USDT | $25.07 0.0071672 Eth | $7,988,192.00 321,851.134 LINK | 1.5209% |
22 | Dex-Trade | LINK-USDT | $24.92 0.0071425 Eth | $6,471,323.00 259,647.510 LINK | 1.2269% |
23 | Hotcoin | LINK-USDT | $25.11 0.0071788 Eth | $5,722,313.00 227,896.650 LINK | 1.0769% |
24 | Bitvavo | LINK-EUR | $25.04 0.0071660 Eth | $4,869,121.00 194,478.087 LINK | 0.9190% |
25 | Binance | LINK-USDC | $25.03 0.0071613 Eth | $4,834,617.00 195,005.600 LINK | 0.9215% |
26 | PointPay | LINK-USDT | $25.06 0.0071650 Eth | $3,125,011.00 125,819.593 LINK | 0.5945% |
27 | CoinEx | LINK-USDT | $24.98 0.0071508 Eth | $3,084,753.00 123,961.937 LINK | 0.5858% |
28 | Dcoin | LINK-USDT | $24.93 0.0071438 Eth | $3,007,616.00 120,655.000 LINK | 0.5701% |
29 | Coinbase Exchange | LINK-EUR | $25.01 0.0071566 Eth | $2,976,139.00 118,994.030 LINK | 0.5623% |
30 | EXMO | LINK-USDT | $25.09 0.0071780 Eth | $2,824,147.00 112,580.015 LINK | 0.5320% |
31 | WhiteBIT | LINK-BTC | $25.09 0.0071736 Eth | $2,259,583.00 90,059.190 LINK | 0.4256% |
32 | Coinbase Exchange | LINK-USDT | $25.02 0.0071529 Eth | $2,247,537.00 89,832.171 LINK | 0.4245% |
33 | Phemex | LINK-USDT | $25.04 0.0071635 Eth | $2,053,497.00 82,006.320 LINK | 0.3875% |
34 | BitMart | LINK-USDT | $25.10 0.0071811 Eth | $2,018,412.00 80,410.560 LINK | 0.3800% |
35 | WhiteBIT | LINK-TRY | $25.16 0.0071965 Eth | $2,017,404.00 80,195.390 LINK | 0.3790% |
36 | BitStorage | LINK-USDT | $25.01 0.0071546 Eth | $1,624,815.00 64,964.150 LINK | 0.3070% |
37 | tanX | LINK-USDC | $25.09 0.0071770 Eth | $1,507,917.00 60,927.020 LINK | 0.2879% |
38 | EarnBIT | LINK-USDT | $24.95 0.0071462 Eth | $1,411,224.00 56,778.843 LINK | 0.2683% |
39 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.11 0.0071858 Eth | $1,404,515.00 55,897.466 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2641% |
40 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.94 0.0071354 Eth | $1,234,836.00 49,111.253 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.2321% |
41 | Binance | LINK-TRY | $25.10 0.0071829 Eth | $1,230,958.00 49,427.740 LINK | 0.2336% |
42 | Bitbank | LINK-JPY | $25.47 0.0072870 Eth | $1,121,529.00 44,030.567 LINK | 0.2081% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.04 0.0071683 Eth | $1,034,126.00 41,610.173 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1966% |
44 | Bybit | LINK-USDC | $25.07 0.0071751 Eth | $1,003,639.00 40,298.569 LINK | 0.1904% |
45 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.75 0.0070902 Eth | $957,238.00 66,861.510 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3159% |
46 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.82 0.0071011 Eth | $929,415.00 37,019.422 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1749% |
47 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.07 0.0071745 Eth | $851,354.00 33,921.327 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1603% |
48 | WhiteBIT | LINK-EUR | $25.03 0.0071611 Eth | $843,896.00 33,710.350 LINK | 0.1593% |
49 | BigONE | LINK-USDT | $25.01 0.0071520 Eth | $831,422.00 33,237.910 LINK | 0.1571% |
50 | Trubit | LINK-USDT | $24.89 0.0071314 Eth | $808,847.00 32,676.350 LINK | 0.1544% |
51 | KuCoin | LINK-USDC | $25.11 0.0071855 Eth | $797,797.00 31,769.805 LINK | 0.1501% |
52 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $25.07 0.0071723 Eth | $775,194.00 31,239.881 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1476% |
53 | Binance | LINK-EUR | $25.11 0.0071789 Eth | $713,437.00 28,610.910 LINK | 0.1352% |
54 | Gemini | LINK-USD | $24.98 0.0071484 Eth | $667,912.00 26,743.082 LINK | 0.1264% |
55 | Coinbase Exchange | LINK-ETH | $25.06 0.0071696 Eth | $643,993.00 25,696.550 LINK | 0.1214% |
56 | GMO Japan | LINK-JPY | $25.31 0.0072428 Eth | $623,655.00 24,645.400 LINK | 0.1165% |
57 | HashKey Exchange | LINK-USD | $25.07 0.0071727 Eth | $538,992.00 21,762.397 LINK | 0.1028% |
58 | Nonkyc.io | LINK-USDT | $24.97 0.0071388 Eth | $503,678.00 20,518.998 LINK | 0.0970% |
59 | WEEX | LINK-USDC | $24.97 0.0071427 Eth | $501,188.00 20,069.361 LINK | 0.0948% |
60 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.10 0.0071841 Eth | $494,498.00 489,181.727 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.3116% |
61 | BitMart | LINK-BTC | $25.09 0.0071767 Eth | $460,027.00 18,336.460 LINK | 0.0866% |
62 | itBit | LINK-USD | $24.89 0.0071297 Eth | $446,388.00 17,934.451 LINK | 0.0847% |
63 | Slex | LINK-ETH | $25.05 0.0071675 Eth | $441,054.00 17,663.550 LINK | 0.0835% |
64 | Bitkub | LINK-THB | $25.03 0.0071605 Eth | $436,084.00 17,422.949 LINK | 0.0823% |
65 | Coinbase Exchange | LINK-BTC | $25.07 0.0071679 Eth | $408,892.00 16,309.230 LINK | 0.0771% |
66 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $25.09 0.0071735 Eth | $393,839.00 15,874.043 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0750% |
67 | LATOKEN | LINK-BTC | $25.07 0.0071725 Eth | $363,435.00 14,494.904 LINK | 0.0685% |
68 | Binance US | LINK-USDT | $25.00 0.0071559 Eth | $349,253.00 13,969.400 LINK | 0.0660% |
69 | BitDelta | LINK-USDT | $25.07 0.0071721 Eth | $340,862.00 13,773.000 LINK | 0.0651% |
70 | OKX | LINK-USDC | $24.97 0.0071457 Eth | $314,194.00 12,635.379 LINK | 0.0597% |
71 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.10 0.0071850 Eth | $291,635.00 11,739.779 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0555% |
72 | PointPay | LINK-BTC | $25.05 0.0071621 Eth | $267,061.00 10,659.627 LINK | 0.0504% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.04 0.0071672 Eth | $256,384.00 10,208.074 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0482% |
74 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $25.05 0.0071689 Eth | $249,462.00 9,943.467 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0470% |
75 | Bitci TR | LINK-TRY | $25.04 0.0071607 Eth | $243,070.00 9,811.790 LINK | 0.0464% |
76 | BitMart | LINK-ETH | $25.08 0.0071762 Eth | $242,255.00 9,657.540 LINK | 0.0456% |
77 | BitStorage | LINK-ETH | $25.02 0.0071603 Eth | $226,110.00 9,038.260 LINK | 0.0427% |
78 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.92 0.0071306 Eth | $215,634.00 8,725.927 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0412% |
79 | KuCoin | LINK-BTC | $25.11 0.0071838 Eth | $212,115.00 8,448.897 LINK | 0.0399% |
80 | BTCMarkets | LINK-AUD | $25.15 0.0071978 Eth | $199,932.00 7,948.029 LINK | 0.0376% |
81 | Hotcoin | LINK-BTC | $25.06 0.0071696 Eth | $192,816.00 7,693.720 LINK | 0.0364% |
82 | Kraken | LINK-ETH | $25.12 0.0071874 Eth | $182,655.00 7,271.793 LINK | 0.0344% |
83 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $25.08 0.0071731 Eth | $179,783.00 178,508.549 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.8435% |
84 | Kraken | LINK-GBP | $25.13 0.0071915 Eth | $174,854.00 6,957.250 LINK | 0.0329% |
85 | Bitso | LINK-USD | $24.94 0.0071326 Eth | $154,366.00 6,188.735 LINK | 0.0292% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $25.11 0.0071827 Eth | $129,271.00 5,203.754 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0246% |
87 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $25.03 0.0071595 Eth | $127,239.00 5,079.052 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0240% |
88 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $25.03 0.0071598 Eth | $106,083.00 4,200.156 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0198% |
89 | Bitexen | LINK-TRY | $24.78 0.0071024 Eth | $75,706.00 3,054.674 LINK | 0.0144% |
90 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.92 0.0071306 Eth | $75,057.00 5,213.427 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0246% |
91 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $24.98 0.0071466 Eth | $71,343.00 93.785 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0004% |
92 | Hotcoin | LINK-ETH | $25.09 0.0071768 Eth | $67,892.00 2,706.060 LINK | 0.0128% |
93 | Mercado Bitcoin | LINK-BRL | $24.56 0.0070249 Eth | $61,922.00 2,521.714 LINK | 0.0119% |
94 | Coins.ph | LINK-PHP | $24.86 0.0071223 Eth | $52,752.00 2,119.277 LINK | 0.0100% |
95 | Independent Reserve | LINK-AUD | $24.98 0.0071545 Eth | $49,477.00 1,980.583 LINK | 0.0094% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $24.65 0.0070560 Eth | $49,438.00 1,958.318 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0093% |
97 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $24.71 0.0070688 Eth | $41,685.00 1,668.036 0X5947BB275C521040051D82396192181B413227A3 | 0.0079% |
98 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $25.04 0.0071648 Eth | $34,176.00 1,374.247 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0065% |
99 | Ace | LINK-USDT | $24.99 0.0071512 Eth | $7,277.58 293.470 LINK | 0.0014% |
100 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $24.93 0.0071315 Eth | $572.62 23.136 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0001% |
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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