ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,180 ( 0.044%)
Market
Price
$22.65 @ 0.006754 ETH (-0.28%)
Onchain Market Cap
$22,650,000,000.00
Circulating Supply Market Cap
$14,300,281,694.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
29.69858173 LINKValue
$672.67 ( ~0.200593001888898 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $22.58 0.0067293 Eth | $96,666,458.00 4,231,375.940 LINK | 18.4605% |
2 | Coinbase Exchange | LINK-USD | $22.58 0.0067299 Eth | $38,581,480.00 1,708,581.540 LINK | 7.4542% |
3 | WhiteBIT | LINK-USDT | $22.59 0.0067431 Eth | $38,478,041.00 1,703,523.870 LINK | 7.4321% |
4 | Bitget | LINK-USDT | $22.59 0.0067323 Eth | $26,000,772.00 1,137,141.649 LINK | 4.9611% |
5 | MEXC | LINK-USDT | $22.61 0.0067379 Eth | $24,291,431.00 1,074,454.870 LINK | 4.6876% |
6 | Slex | LINK-USDT | $22.60 0.0067421 Eth | $22,643,014.00 991,249.310 LINK | 4.3246% |
7 | Bybit | LINK-USDT | $22.62 0.0067412 Eth | $21,228,106.00 928,942.891 LINK | 4.0528% |
8 | P2B | LINK-USDT | $22.64 0.0067473 Eth | $19,298,112.00 852,540.590 LINK | 3.7194% |
9 | OKX | LINK-USDT | $22.57 0.0067266 Eth | $19,154,286.00 837,804.459 LINK | 3.6552% |
10 | CoinW | LINK-USDT | $22.60 0.0067365 Eth | $16,508,673.00 730,370.390 LINK | 3.1864% |
11 | Gate.io | LINK-USDT | $22.60 0.0067362 Eth | $15,755,842.00 688,072.420 LINK | 3.0019% |
12 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.50 0.0067106 Eth | $13,698,374.00 602,724.341 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.6295% |
13 | DigiFinex | LINK-USDT | $22.58 0.0067289 Eth | $12,741,850.00 564,368.310 LINK | 2.4622% |
14 | HTX | LINK-USDT | $22.61 0.0067387 Eth | $11,235,113.00 492,242.662 LINK | 2.1475% |
15 | XT.COM | LINK-USDT | $22.59 0.0067324 Eth | $9,652,131.00 422,478.700 LINK | 1.8432% |
16 | Azbit | LINK-USDT | $22.56 0.0067289 Eth | $9,597,994.00 420,061.672 LINK | 1.8326% |
17 | Coinstore | LINK-USDT | $22.57 0.0067322 Eth | $8,480,041.00 371,433.460 LINK | 1.6205% |
18 | Bitunix | LINK-USDT | $22.58 0.0067343 Eth | $7,827,476.00 346,790.990 LINK | 1.5130% |
19 | BTSE | LINK-USDT | $22.58 0.0067293 Eth | $7,061,878.00 312,772.235 LINK | 1.3646% |
20 | Biconomy.com | LINK-USDT | $22.58 0.0067349 Eth | $6,703,636.00 293,309.960 LINK | 1.2796% |
21 | BYDFi | LINK-USDT | $22.54 0.0067191 Eth | $6,129,872.00 271,946.020 LINK | 1.1864% |
22 | Hotcoin | LINK-USDT | $22.60 0.0067350 Eth | $6,098,772.00 269,879.170 LINK | 1.1774% |
23 | Binance | LINK-FDUSD | $22.62 0.0067398 Eth | $5,846,173.00 255,429.960 LINK | 1.1144% |
24 | LATOKEN | LINK-USDT | $22.59 0.0067351 Eth | $4,653,118.00 205,987.121 LINK | 0.8987% |
25 | LBank | LINK-USDT | $22.61 0.0067414 Eth | $4,429,212.00 195,932.880 LINK | 0.8548% |
26 | Kraken | LINK-USD | $22.58 0.0067297 Eth | $4,031,706.00 178,573.598 LINK | 0.7791% |
27 | QMall | LINK-USDT | $22.61 0.0067399 Eth | $3,898,774.00 170,664.803 LINK | 0.7446% |
28 | KuCoin | LINK-USDT | $22.61 0.0067385 Eth | $3,714,332.00 164,277.962 LINK | 0.7167% |
29 | Dex-Trade | LINK-USDT | $22.63 0.0067443 Eth | $3,124,348.00 138,086.539 LINK | 0.6024% |
30 | FMCPAY | LINK-USDT | $22.62 0.0067413 Eth | $3,096,672.00 135,651.343 LINK | 0.5918% |
31 | Bitvavo | LINK-EUR | $22.65 0.0067507 Eth | $2,522,666.00 111,386.748 LINK | 0.4860% |
32 | Dcoin | LINK-USDT | $22.64 0.0067504 Eth | $2,401,751.00 106,093.000 LINK | 0.4629% |
33 | Coinbase Exchange | LINK-GBP | $22.63 0.0067466 Eth | $2,268,039.00 100,241.900 LINK | 0.4373% |
34 | PointPay | LINK-USDT | $22.59 0.0067315 Eth | $1,577,784.00 68,984.918 LINK | 0.3010% |
35 | EXMO | LINK-USDT | $22.62 0.0067412 Eth | $1,534,020.00 67,828.665 LINK | 0.2959% |
36 | FMCPAY | LINK-ETH | $22.58 0.0067336 Eth | $1,457,884.00 63,924.640 LINK | 0.2789% |
37 | FMCPAY | LINK-BTC | $22.61 0.0067401 Eth | $1,399,745.00 62,100.000 LINK | 0.2709% |
38 | WhiteBIT | LINK-BTC | $22.60 0.0067390 Eth | $1,294,931.00 57,301.610 LINK | 0.2500% |
39 | WhiteBIT | LINK-TRY | $22.69 0.0067658 Eth | $1,291,968.00 56,930.360 LINK | 0.2484% |
40 | CoinEx | LINK-USDT | $22.61 0.0067473 Eth | $1,268,430.00 55,667.598 LINK | 0.2429% |
41 | Bybit | LINK-USDC | $22.61 0.0067387 Eth | $1,205,852.00 52,811.492 LINK | 0.2304% |
42 | Coinbase Exchange | LINK-USDT | $22.57 0.0067319 Eth | $1,158,408.00 51,319.531 LINK | 0.2239% |
43 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.54 0.0067197 Eth | $1,086,554.00 80,807.996 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3525% |
44 | Phemex | LINK-USDT | $22.57 0.0067282 Eth | $1,025,701.00 45,449.780 LINK | 0.1983% |
45 | BigONE | LINK-USDT | $22.57 0.0067291 Eth | $959,039.00 42,484.030 LINK | 0.1853% |
46 | tanX | LINK-USDC | $22.63 0.0067451 Eth | $955,905.00 41,833.360 LINK | 0.1825% |
47 | Bitbank | LINK-JPY | $22.67 0.0067589 Eth | $933,589.00 41,172.628 LINK | 0.1796% |
48 | EarnBIT | LINK-USDT | $22.59 0.0067452 Eth | $920,692.00 40,246.325 LINK | 0.1756% |
49 | Coinbase Exchange | LINK-EUR | $22.58 0.0067330 Eth | $893,670.00 39,577.850 LINK | 0.1727% |
50 | BitStorage | LINK-USDT | $22.59 0.0067388 Eth | $757,883.00 33,547.780 LINK | 0.1464% |
51 | Gemini | LINK-USD | $22.63 0.0067451 Eth | $754,456.00 33,336.819 LINK | 0.1454% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.56 0.0067237 Eth | $745,670.00 32,718.458 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1427% |
53 | itBit | LINK-USD | $22.62 0.0067415 Eth | $578,376.00 25,569.225 LINK | 0.1116% |
54 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $22.57 0.0067281 Eth | $570,398.00 24,946.812 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1088% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.58 0.0067292 Eth | $538,152.00 23,455.268 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1023% |
56 | Binance | LINK-EUR | $22.61 0.0067378 Eth | $518,367.00 22,693.780 LINK | 0.0990% |
57 | Binance | LINK-TRY | $22.69 0.0067627 Eth | $515,485.00 22,419.720 LINK | 0.0978% |
58 | Koinpark | LINK-USDT | $22.57 0.0067245 Eth | $489,401.00 21,686.398 LINK | 0.0946% |
59 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.69 0.0067644 Eth | $469,852.00 20,633.224 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0900% |
60 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.53 0.0067161 Eth | $455,561.00 20,020.194 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0873% |
61 | WhiteBIT | LINK-EUR | $22.59 0.0067465 Eth | $440,250.00 19,487.000 LINK | 0.0850% |
62 | HashKey Exchange | LINK-USD | $22.63 0.0067398 Eth | $422,391.00 18,362.339 LINK | 0.0801% |
63 | GMO Japan | LINK-JPY | $22.59 0.0067350 Eth | $418,152.00 18,506.500 LINK | 0.0807% |
64 | Slex | LINK-ETH | $22.58 0.0067315 Eth | $389,202.00 17,062.450 LINK | 0.0744% |
65 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $22.66 0.0067533 Eth | $387,113.00 16,897.964 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0737% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $22.54 0.0067175 Eth | $384,085.00 389,221.087 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.6981% |
67 | BitMart | LINK-BTC | $22.58 0.0067297 Eth | $331,201.00 14,668.060 LINK | 0.0640% |
68 | QMall | LINK-USDC | $22.59 0.0067338 Eth | $291,872.00 12,767.905 LINK | 0.0557% |
69 | BitDelta | LINK-USDT | $22.58 0.0067312 Eth | $276,536.00 12,122.000 LINK | 0.0529% |
70 | OKX | LINK-USDC | $22.61 0.0067394 Eth | $252,923.00 11,077.073 LINK | 0.0483% |
71 | Bitci TR | LINK-TRY | $22.59 0.0067355 Eth | $233,247.00 10,168.470 LINK | 0.0444% |
72 | Hotcoin | LINK-BTC | $22.60 0.0067364 Eth | $209,978.00 9,289.820 LINK | 0.0405% |
73 | Coinbase Exchange | LINK-BTC | $22.60 0.0067385 Eth | $192,520.00 8,519.140 LINK | 0.0372% |
74 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.52 0.0067178 Eth | $192,207.00 8,416.125 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0367% |
75 | LATOKEN | LINK-BTC | $22.57 0.0067276 Eth | $175,194.00 7,761.317 LINK | 0.0339% |
76 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.67 0.0067588 Eth | $171,050.00 7,502.179 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0327% |
77 | Bitbegin | LINK-USDT | $22.59 0.0067453 Eth | $161,358.00 7,146.775 LINK | 0.0312% |
78 | BitStorage | LINK-ETH | $22.63 0.0067407 Eth | $146,067.00 6,455.680 LINK | 0.0282% |
79 | BitMart | LINK-ETH | $22.58 0.0067308 Eth | $128,120.00 5,673.160 LINK | 0.0248% |
80 | PointPay | LINK-BTC | $22.55 0.0067264 Eth | $124,318.00 5,512.982 LINK | 0.0241% |
81 | Bitso | LINK-USD | $22.64 0.0067475 Eth | $108,497.00 4,793.141 LINK | 0.0209% |
82 | Bitkub | LINK-THB | $22.78 0.0067961 Eth | $106,498.00 4,674.051 LINK | 0.0204% |
83 | KuCoin | LINK-USDC | $22.63 0.0067437 Eth | $103,445.00 4,571.636 LINK | 0.0199% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.54 0.0067175 Eth | $102,439.00 4,506.742 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0197% |
85 | Binance US | LINK-USDT | $22.61 0.0067399 Eth | $101,747.00 4,500.341 LINK | 0.0196% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $22.54 0.0067175 Eth | $100,276.00 4,386.902 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0191% |
87 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $22.75 0.0067806 Eth | $91,865.00 92,739.255 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4046% |
88 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.56 0.0067273 Eth | $81,852.00 6,135.605 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0268% |
89 | Hotcoin | LINK-ETH | $22.59 0.0067318 Eth | $74,713.00 3,307.060 LINK | 0.0144% |
90 | KuCoin | LINK-BTC | $22.58 0.0067300 Eth | $74,398.00 3,294.659 LINK | 0.0144% |
91 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $22.58 0.0067349 Eth | $68,322.00 2,991.527 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0131% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.55 0.0067205 Eth | $68,105.00 2,988.428 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0130% |
93 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.66 0.0067526 Eth | $58,898.00 2,587.669 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0113% |
94 | Mercado Bitcoin | LINK-BRL | $22.60 0.0067354 Eth | $52,863.00 2,339.124 LINK | 0.0102% |
95 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $22.68 0.0067606 Eth | $43,074.00 1,901.693 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0083% |
96 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $22.64 0.0067497 Eth | $36,020.00 1,574.777 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0069% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $22.59 0.0067322 Eth | $23,435.00 1,036.660 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0045% |
98 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $22.68 0.0067644 Eth | $19,695.73 874.848 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0038% |
99 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $22.93 0.0068355 Eth | $17,510.56 767.153 0X5947BB275C521040051D82396192181B413227A3 | 0.0033% |
100 | Bitexen | LINK-TRY | $22.50 0.0067140 Eth | $16,941.62 753.126 LINK | 0.0033% |
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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