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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,338 ( 0.003%)
Market
Price
$21.28 @ 0.006383 ETH (-7.31%)
Onchain Market Cap
$21,280,000,000.00
Circulating Supply Market Cap
$13,440,102,318.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.11514894 LINKValue
$2.45 ( ~0.000734853899737923 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $21.28 0.0063940 Eth | $113,461,409.00 5,059,098.980 LINK | 18.5015% |
2 | Coinbase Exchange | LINK-USD | $21.28 0.0063920 Eth | $42,343,210.00 1,990,280.130 LINK | 7.2786% |
3 | Bitget | LINK-USDT | $21.33 0.0064008 Eth | $38,040,988.00 1,710,109.376 LINK | 6.2540% |
4 | WhiteBIT | LINK-USDT | $21.32 0.0064028 Eth | $36,220,060.00 1,699,153.390 LINK | 6.2139% |
5 | Bybit | LINK-USDT | $21.29 0.0063887 Eth | $32,726,174.00 1,473,216.273 LINK | 5.3877% |
6 | MEXC | LINK-USDT | $21.32 0.0064019 Eth | $23,768,307.00 1,114,913.260 LINK | 4.0773% |
7 | OKX | LINK-USDT | $21.31 0.0063899 Eth | $22,586,418.00 1,008,307.845 LINK | 3.6874% |
8 | Slex | LINK-USDT | $21.27 0.0063910 Eth | $22,172,217.00 986,071.770 LINK | 3.6061% |
9 | P2B | LINK-USDT | $21.27 0.0063936 Eth | $21,671,685.00 1,019,077.410 LINK | 3.7268% |
10 | CoinW | LINK-USDT | $21.27 0.0063920 Eth | $18,827,945.00 885,108.600 LINK | 3.2369% |
11 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.42 0.0064280 Eth | $17,913,893.00 799,682.214 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.9245% |
12 | DigiFinex | LINK-USDT | $21.32 0.0063993 Eth | $14,482,958.00 679,171.540 LINK | 2.4838% |
13 | FameEX | LINK-USDT | $21.25 0.0063880 Eth | $11,334,268.00 505,167.547 LINK | 1.8474% |
14 | XT.COM | LINK-USDT | $21.27 0.0063880 Eth | $11,291,605.00 503,579.050 LINK | 1.8416% |
15 | Azbit | LINK-USDT | $21.25 0.0063842 Eth | $11,279,797.00 503,074.114 LINK | 1.8398% |
16 | HTX | LINK-USDT | $21.31 0.0063998 Eth | $11,114,629.00 495,064.156 LINK | 1.8105% |
17 | Coinstore | LINK-USDT | $21.28 0.0063951 Eth | $10,041,640.00 448,313.890 LINK | 1.6395% |
18 | Bitunix | LINK-USDT | $21.25 0.0063849 Eth | $8,976,196.00 422,232.780 LINK | 1.5441% |
19 | Biconomy.com | LINK-USDT | $21.26 0.0063884 Eth | $7,481,713.00 333,779.662 LINK | 1.2207% |
20 | BTSE | LINK-USDT | $21.26 0.0063905 Eth | $7,352,037.00 345,786.395 LINK | 1.2646% |
21 | BYDFi | LINK-USDT | $21.28 0.0063982 Eth | $6,973,786.00 327,685.760 LINK | 1.1984% |
22 | Binance | LINK-FDUSD | $21.30 0.0063986 Eth | $6,472,489.00 288,645.380 LINK | 1.0556% |
23 | Hotcoin | LINK-USDT | $21.27 0.0063904 Eth | $5,602,108.00 263,383.400 LINK | 0.9632% |
24 | LATOKEN | LINK-USDT | $21.27 0.0063901 Eth | $5,448,344.00 256,158.614 LINK | 0.9368% |
25 | QMall | LINK-USDT | $21.26 0.0063872 Eth | $4,577,205.00 204,259.592 LINK | 0.7470% |
26 | LBank | LINK-USDT | $21.25 0.0063840 Eth | $4,544,272.00 213,839.800 LINK | 0.7820% |
27 | KuCoin | LINK-USDT | $21.31 0.0063995 Eth | $3,866,616.00 181,441.508 LINK | 0.6635% |
28 | Kraken | LINK-USD | $21.30 0.0063958 Eth | $3,616,551.00 169,806.370 LINK | 0.6210% |
29 | Dex-Trade | LINK-USDT | $21.25 0.0063917 Eth | $3,539,703.00 166,575.569 LINK | 0.6092% |
30 | FMCPAY | LINK-USDT | $21.27 0.0063911 Eth | $3,444,277.00 153,718.221 LINK | 0.5622% |
31 | Bitvavo | LINK-EUR | $21.27 0.0063988 Eth | $2,925,994.00 137,536.754 LINK | 0.5030% |
32 | Dcoin | LINK-USDT | $21.27 0.0063945 Eth | $2,311,122.00 108,653.000 LINK | 0.3974% |
33 | CoinEx | LINK-USDT | $21.24 0.0063895 Eth | $1,952,480.00 87,555.582 LINK | 0.3202% |
34 | PointPay | LINK-USDT | $21.24 0.0063822 Eth | $1,896,262.00 84,546.096 LINK | 0.3092% |
35 | Coinbase Exchange | LINK-GBP | $21.26 0.0063872 Eth | $1,753,229.00 82,468.940 LINK | 0.3016% |
36 | EXMO | LINK-USDT | $21.31 0.0064000 Eth | $1,683,565.00 79,013.848 LINK | 0.2890% |
37 | Coinbase Exchange | LINK-ETH | $21.27 0.0063899 Eth | $1,520,002.00 71,460.330 LINK | 0.2613% |
38 | FMCPAY | LINK-BTC | $21.27 0.0063901 Eth | $1,512,545.00 68,083.600 LINK | 0.2490% |
39 | FMCPAY | LINK-ETH | $21.31 0.0063893 Eth | $1,491,138.00 66,823.680 LINK | 0.2444% |
40 | Bybit | LINK-USDC | $21.27 0.0063826 Eth | $1,487,757.00 67,183.615 LINK | 0.2457% |
41 | Coinbase Exchange | LINK-EUR | $21.27 0.0063899 Eth | $1,432,391.00 67,349.560 LINK | 0.2463% |
42 | WhiteBIT | LINK-BTC | $21.26 0.0063866 Eth | $1,364,832.00 64,203.240 LINK | 0.2348% |
43 | Phemex | LINK-USDT | $21.32 0.0063971 Eth | $1,279,260.00 60,011.380 LINK | 0.2195% |
44 | WhiteBIT | LINK-TRY | $21.47 0.0064444 Eth | $1,235,559.00 57,535.780 LINK | 0.2104% |
45 | Coinbase Exchange | LINK-USDT | $21.33 0.0064001 Eth | $1,181,377.00 55,393.638 LINK | 0.2026% |
46 | EarnBIT | LINK-USDT | $21.34 0.0063994 Eth | $1,061,618.00 47,332.357 LINK | 0.1731% |
47 | tanX | LINK-USDC | $21.29 0.0063979 Eth | $1,019,935.00 45,532.150 LINK | 0.1665% |
48 | Bitbank | LINK-JPY | $21.34 0.0064116 Eth | $972,561.00 45,568.911 LINK | 0.1666% |
49 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.38 0.0064160 Eth | $948,495.00 42,307.982 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1547% |
50 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.28 0.0063872 Eth | $919,982.00 71,770.679 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2625% |
51 | BigONE | LINK-USDT | $21.38 0.0064098 Eth | $883,839.00 41,337.030 LINK | 0.1512% |
52 | BitStorage | LINK-USDT | $21.28 0.0063930 Eth | $854,876.00 40,171.280 LINK | 0.1469% |
53 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.35 0.0064143 Eth | $828,898.00 37,145.435 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1358% |
54 | Gemini | LINK-USD | $21.29 0.0063844 Eth | $754,954.00 35,456.272 LINK | 0.1297% |
55 | Binance | LINK-TRY | $21.40 0.0064258 Eth | $700,634.00 31,057.890 LINK | 0.1136% |
56 | Binance | LINK-EUR | $21.27 0.0063961 Eth | $584,998.00 25,968.010 LINK | 0.0950% |
57 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.30 0.0063910 Eth | $584,675.00 627,574.670 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.2951% |
58 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.30 0.0063919 Eth | $576,618.00 26,029.139 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0952% |
59 | Koinpark | LINK-USDT | $21.31 0.0064000 Eth | $553,537.00 25,978.859 LINK | 0.0950% |
60 | itBit | LINK-USD | $21.32 0.0063926 Eth | $495,081.00 23,221.426 LINK | 0.0849% |
61 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.26 0.0063799 Eth | $491,346.00 21,928.062 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0802% |
62 | WhiteBIT | LINK-EUR | $21.28 0.0063922 Eth | $488,541.00 22,961.690 LINK | 0.0840% |
63 | HashKey Exchange | LINK-USD | $21.38 0.0064198 Eth | $422,965.00 18,476.053 LINK | 0.0676% |
64 | GMO Japan | LINK-JPY | $21.42 0.0064311 Eth | $418,906.00 19,560.600 LINK | 0.0715% |
65 | Slex | LINK-ETH | $21.30 0.0063984 Eth | $383,753.00 17,230.550 LINK | 0.0630% |
66 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $21.35 0.0064157 Eth | $377,801.00 16,701.027 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0611% |
67 | QMall | LINK-USDC | $21.29 0.0063880 Eth | $356,953.00 15,912.826 LINK | 0.0582% |
68 | BitMart | LINK-BTC | $21.28 0.0063919 Eth | $356,952.00 16,773.700 LINK | 0.0613% |
69 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.36 0.0064111 Eth | $356,080.00 377,210.656 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.3795% |
70 | BitDelta | LINK-USDT | $21.24 0.0063856 Eth | $281,254.00 12,477.000 LINK | 0.0456% |
71 | OKX | LINK-USDC | $21.33 0.0063964 Eth | $267,327.00 11,919.170 LINK | 0.0436% |
72 | Bitci TR | LINK-TRY | $21.49 0.0064581 Eth | $228,690.00 10,102.920 LINK | 0.0369% |
73 | Bitbegin | LINK-USDT | $21.27 0.0063901 Eth | $227,730.00 10,361.368 LINK | 0.0379% |
74 | Coinbase Exchange | LINK-BTC | $21.29 0.0063932 Eth | $217,990.00 10,239.340 LINK | 0.0374% |
75 | BitStorage | LINK-ETH | $21.24 0.0063819 Eth | $206,735.00 9,731.580 LINK | 0.0356% |
76 | LATOKEN | LINK-BTC | $21.27 0.0063901 Eth | $201,936.00 9,494.252 LINK | 0.0347% |
77 | Hotcoin | LINK-BTC | $21.30 0.0064010 Eth | $192,077.00 9,018.960 LINK | 0.0330% |
78 | Binance | LINK-BRL | $21.44 0.0064482 Eth | $189,854.00 8,398.820 LINK | 0.0307% |
79 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.32 0.0064044 Eth | $189,322.00 8,361.071 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0306% |
80 | Bitso | LINK-USD | $21.29 0.0063970 Eth | $168,843.00 7,929.980 LINK | 0.0290% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.30 0.0063910 Eth | $163,341.00 7,360.923 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0269% |
82 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.31 0.0063936 Eth | $157,658.00 6,975.663 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0255% |
83 | PointPay | LINK-BTC | $21.26 0.0063872 Eth | $152,618.00 6,908.984 LINK | 0.0253% |
84 | BitMart | LINK-ETH | $21.29 0.0063954 Eth | $152,609.00 7,167.400 LINK | 0.0262% |
85 | Bitkub | LINK-THB | $21.43 0.0064421 Eth | $132,179.00 6,168.923 LINK | 0.0226% |
86 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $21.45 0.0064424 Eth | $106,939.00 4,807.655 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0176% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.24 0.0063744 Eth | $105,371.00 4,774.329 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0175% |
88 | KuCoin | LINK-USDC | $21.27 0.0063882 Eth | $103,497.00 4,865.216 LINK | 0.0178% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $21.36 0.0064113 Eth | $101,739.00 4,505.098 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0165% |
90 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.48 0.0064544 Eth | $91,723.00 96,980.539 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3547% |
91 | Kraken | LINK-GBP | $21.29 0.0063920 Eth | $90,255.00 4,240.191 LINK | 0.0155% |
92 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.33 0.0064091 Eth | $86,266.00 3,906.536 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0143% |
93 | Kanga | LINK-PLN | $21.42 0.0064279 Eth | $84,209.00 0.000 LINK | 0.0000% |
94 | Mercado Bitcoin | LINK-BRL | $21.56 0.0064631 Eth | $80,531.00 3,736.068 LINK | 0.0137% |
95 | Binance US | LINK-USDT | $21.27 0.0063869 Eth | $72,826.00 3,424.124 LINK | 0.0125% |
96 | Hotcoin | LINK-ETH | $21.26 0.0063917 Eth | $68,652.00 3,228.450 LINK | 0.0118% |
97 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $21.34 0.0064115 Eth | $60,005.00 2,700.919 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0099% |
98 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.39 0.0064268 Eth | $52,963.00 4,080.565 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0149% |
99 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $21.42 0.0064277 Eth | $41,046.00 1,821.518 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0067% |
100 | KuCoin | LINK-KCS | $21.26 0.0063847 Eth | $19,124.56 899.507 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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