ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
726,066 ( 0.005%)
Market
Price
$22.35 @ 0.006788 ETH (+1.48%)
Onchain Market Cap
$22,350,000,000.00
Circulating Supply Market Cap
$14,091,491,705.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $22.26 0.0067978 Eth | $131,102,403.00 5,875,903.580 LINK | 19.3260% |
2 | WhiteBIT | LINK-USDT | $22.46 0.0068273 Eth | $62,209,582.00 2,769,898.420 LINK | 9.1103% |
3 | Coinbase Exchange | LINK-USD | $22.45 0.0068203 Eth | $58,922,936.00 2,624,863.520 LINK | 8.6333% |
4 | Bitget | LINK-USDT | $22.47 0.0068303 Eth | $38,540,063.00 1,727,040.724 LINK | 5.6803% |
5 | Bybit | LINK-USDT | $22.45 0.0068245 Eth | $33,300,542.00 1,492,421.458 LINK | 4.9086% |
6 | OKX | LINK-USDT | $22.49 0.0068317 Eth | $24,309,888.00 1,087,202.189 LINK | 3.5758% |
7 | Slex | LINK-USDT | $22.47 0.0068207 Eth | $22,816,159.00 1,024,969.840 LINK | 3.3712% |
8 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.45 0.0068245 Eth | $19,401,575.00 878,192.593 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.8884% |
9 | WEEX | LINK-USDT | $22.40 0.0068199 Eth | $18,473,107.00 829,771.140 LINK | 2.7291% |
10 | DigiFinex | LINK-USDT | $22.46 0.0068275 Eth | $17,492,580.00 778,837.580 LINK | 2.5616% |
11 | XT.COM | LINK-USDT | $22.45 0.0068157 Eth | $15,795,887.00 707,905.740 LINK | 2.3283% |
12 | BTSE | LINK-USDT | $22.38 0.0067938 Eth | $14,963,572.00 668,734.227 LINK | 2.1995% |
13 | FameEX | LINK-USDT | $22.38 0.0067983 Eth | $13,154,714.00 589,563.264 LINK | 1.9391% |
14 | Azbit | LINK-USDT | $22.48 0.0068272 Eth | $13,129,591.00 588,383.356 LINK | 1.9352% |
15 | HTX | LINK-USDT | $22.43 0.0068180 Eth | $13,057,741.00 586,824.560 LINK | 1.9301% |
16 | Coinstore | LINK-USDT | $22.40 0.0068041 Eth | $11,446,330.00 513,352.360 LINK | 1.6884% |
17 | Bitunix | LINK-USDT | $22.47 0.0068191 Eth | $11,186,955.00 498,039.830 LINK | 1.6381% |
18 | Binance | LINK-FDUSD | $22.45 0.0068257 Eth | $10,728,557.00 479,921.860 LINK | 1.5785% |
19 | BYDFi | LINK-USDT | $22.34 0.0068054 Eth | $7,460,789.00 333,985.150 LINK | 1.0985% |
20 | Kraken | LINK-USD | $22.45 0.0068214 Eth | $7,353,515.00 327,524.815 LINK | 1.0772% |
21 | Biconomy.com | LINK-USDT | $22.38 0.0067968 Eth | $7,277,719.00 326,041.840 LINK | 1.0724% |
22 | CoinW | LINK-USDT | $22.35 0.0068231 Eth | $6,379,719.00 285,449.560 LINK | 0.9389% |
23 | LATOKEN | LINK-USDT | $22.47 0.0068303 Eth | $6,184,496.00 275,246.367 LINK | 0.9053% |
24 | KuCoin | LINK-USDT | $22.45 0.0068252 Eth | $6,035,000.00 268,790.098 LINK | 0.8841% |
25 | QMall | LINK-USDT | $22.26 0.0067985 Eth | $5,389,903.00 241,480.770 LINK | 0.7942% |
26 | Hotcoin | LINK-USDT | $22.47 0.0068180 Eth | $5,346,825.00 237,995.660 LINK | 0.7828% |
27 | Binance | LINK-USDC | $22.33 0.0068094 Eth | $5,345,139.00 240,203.410 LINK | 0.7900% |
28 | LBank | LINK-USDT | $22.41 0.0068025 Eth | $5,307,587.00 236,840.110 LINK | 0.7790% |
29 | Dex-Trade | LINK-USDT | $22.41 0.0068119 Eth | $4,405,981.00 196,615.740 LINK | 0.6467% |
30 | Coinbase Exchange | LINK-EUR | $22.42 0.0068056 Eth | $3,978,522.00 177,464.840 LINK | 0.5837% |
31 | Bitvavo | LINK-EUR | $22.44 0.0068227 Eth | $3,611,587.00 160,910.246 LINK | 0.5292% |
32 | FMCPAY | LINK-USDT | $22.45 0.0068242 Eth | $3,417,363.00 153,292.440 LINK | 0.5042% |
33 | Dcoin | LINK-USDT | $22.24 0.0067920 Eth | $3,067,218.00 137,888.000 LINK | 0.4535% |
34 | Bitstamp | LINK-EUR | $22.50 0.0068390 Eth | $2,607,367.00 115,894.274 LINK | 0.3812% |
35 | ProBit Global | LINK-USDT | $22.53 0.0068587 Eth | $2,584,401.00 114,696.591 LINK | 0.3772% |
36 | WhiteBIT | LINK-TRY | $22.52 0.0068374 Eth | $2,410,220.00 107,002.790 LINK | 0.3519% |
37 | CoinEx | LINK-USDT | $22.47 0.0068238 Eth | $2,344,414.00 105,040.167 LINK | 0.3455% |
38 | WhiteBIT | LINK-BTC | $22.30 0.0068016 Eth | $2,239,193.00 100,392.920 LINK | 0.3302% |
39 | PointPay | LINK-USDT | $22.41 0.0068122 Eth | $2,096,013.00 93,889.143 LINK | 0.3088% |
40 | FMCPAY | LINK-ETH | $22.44 0.0068221 Eth | $1,627,310.00 73,552.960 LINK | 0.2419% |
41 | FMCPAY | LINK-BTC | $22.45 0.0068136 Eth | $1,495,514.00 67,371.400 LINK | 0.2216% |
42 | EXMO | LINK-USDT | $22.42 0.0068141 Eth | $1,425,863.00 63,607.465 LINK | 0.2092% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.41 0.0068127 Eth | $1,398,879.00 63,266.709 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2081% |
44 | Phemex | LINK-USDT | $22.46 0.0068272 Eth | $1,388,285.00 61,814.310 LINK | 0.2033% |
45 | Nonkyc.io | LINK-USDT | $22.54 0.0068435 Eth | $1,169,695.00 52,856.833 LINK | 0.1738% |
46 | EarnBIT | LINK-USDT | $22.26 0.0067994 Eth | $1,166,425.00 52,186.653 LINK | 0.1716% |
47 | Bybit | LINK-USDC | $22.45 0.0068237 Eth | $1,158,860.00 52,230.606 LINK | 0.1718% |
48 | tanX | LINK-USDC | $22.49 0.0068286 Eth | $1,154,301.00 51,743.280 LINK | 0.1702% |
49 | Bitbank | LINK-JPY | $22.52 0.0068460 Eth | $1,152,538.00 51,182.739 LINK | 0.1683% |
50 | BitStorage | LINK-USDT | $22.50 0.0068271 Eth | $1,058,341.00 47,045.680 LINK | 0.1547% |
51 | Binance | LINK-TRY | $22.44 0.0068428 Eth | $998,634.00 44,485.920 LINK | 0.1463% |
52 | Trubit | LINK-USDT | $22.26 0.0067968 Eth | $953,587.00 42,888.170 LINK | 0.1411% |
53 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $22.48 0.0068247 Eth | $922,911.00 41,020.983 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1349% |
54 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.52 0.0068455 Eth | $913,471.00 64,943.752 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2136% |
55 | BigONE | LINK-USDT | $22.50 0.0068407 Eth | $903,846.00 40,164.830 LINK | 0.1321% |
56 | KuCoin | LINK-USDC | $22.47 0.0068309 Eth | $887,785.00 39,507.842 LINK | 0.1299% |
57 | Binance | LINK-EUR | $22.31 0.0067967 Eth | $853,826.00 38,053.950 LINK | 0.1252% |
58 | WhiteBIT | LINK-EUR | $22.50 0.0068295 Eth | $793,771.00 35,281.360 LINK | 0.1160% |
59 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.57 0.0068537 Eth | $748,496.00 33,600.236 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1105% |
60 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.40 0.0068100 Eth | $738,514.00 33,628.966 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1106% |
61 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.44 0.0068126 Eth | $714,999.00 32,140.513 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1057% |
62 | OKX | LINK-USDC | $22.44 0.0068174 Eth | $696,648.00 31,188.594 LINK | 0.1026% |
63 | Koinpark | LINK-USDT | $22.39 0.0068064 Eth | $678,083.00 30,288.013 LINK | 0.0996% |
64 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $22.48 0.0068337 Eth | $632,078.00 625,757.821 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.0581% |
65 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $22.50 0.0068308 Eth | $609,311.00 27,369.630 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0900% |
66 | ProBit Global | LINK-BTC | $22.39 0.0068132 Eth | $595,958.00 26,620.935 LINK | 0.0876% |
67 | Gemini | LINK-USD | $22.48 0.0068331 Eth | $535,678.00 23,830.837 LINK | 0.0784% |
68 | GMO Japan | LINK-JPY | $22.52 0.0068372 Eth | $532,970.00 23,667.700 LINK | 0.0778% |
69 | Coinbase Exchange | LINK-USDT | $22.47 0.0068301 Eth | $502,558.00 22,366.674 LINK | 0.0736% |
70 | WEEX | LINK-USDC | $22.53 0.0068682 Eth | $502,274.00 22,289.455 LINK | 0.0733% |
71 | HashKey Exchange | LINK-USD | $22.43 0.0068098 Eth | $441,708.00 19,794.270 LINK | 0.0651% |
72 | BitDelta | LINK-USDT | $22.47 0.0068181 Eth | $408,317.00 18,357.000 LINK | 0.0604% |
73 | BitMart | LINK-BTC | $22.42 0.0068162 Eth | $400,912.00 17,881.900 LINK | 0.0588% |
74 | Slex | LINK-ETH | $22.46 0.0068145 Eth | $378,621.00 17,108.520 LINK | 0.0563% |
75 | Coinbase Exchange | LINK-BTC | $22.44 0.0068213 Eth | $282,893.00 12,608.320 LINK | 0.0415% |
76 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.54 0.0068445 Eth | $267,778.00 12,000.081 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0395% |
77 | Coinbase Exchange | LINK-ETH | $22.41 0.0068071 Eth | $267,350.00 11,928.890 LINK | 0.0392% |
78 | Coinbase Exchange | LINK-GBP | $22.48 0.0068343 Eth | $249,254.00 11,088.020 LINK | 0.0365% |
79 | LATOKEN | LINK-BTC | $22.35 0.0068161 Eth | $246,503.00 11,028.200 LINK | 0.0363% |
80 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.50 0.0068321 Eth | $231,435.00 10,467.199 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0344% |
81 | Uniswap V3 (Ethereum) | 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.52 0.0068455 Eth | $221,456.00 696.784 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9 | 0.0023% |
82 | Bitci TR | LINK-TRY | $22.69 0.0069061 Eth | $215,740.00 9,598.950 LINK | 0.0316% |
83 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.52 0.0068455 Eth | $206,750.00 9,261.616 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0305% |
84 | Hotcoin | LINK-BTC | $22.46 0.0068232 Eth | $203,431.00 9,058.470 LINK | 0.0298% |
85 | Bitso | LINK-USD | $22.32 0.0067868 Eth | $195,958.00 8,778.075 LINK | 0.0289% |
86 | BitStorage | LINK-ETH | $22.38 0.0068001 Eth | $189,141.00 8,450.290 LINK | 0.0278% |
87 | PointPay | LINK-BTC | $22.42 0.0068141 Eth | $186,857.00 8,377.270 LINK | 0.0276% |
88 | BitMart | LINK-ETH | $22.43 0.0068195 Eth | $185,332.00 8,261.120 LINK | 0.0272% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $22.45 0.0068162 Eth | $181,482.00 8,121.543 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0267% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.33 0.0067884 Eth | $178,204.00 8,124.531 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0267% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $22.48 0.0068337 Eth | $177,154.00 7,972.349 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0262% |
92 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $22.37 0.0067912 Eth | $167,011.00 7,531.733 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0248% |
93 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $22.55 0.0068455 Eth | $152,385.00 150,598.808 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4953% |
94 | Binance US | LINK-USDT | $22.48 0.0068215 Eth | $145,400.00 6,467.916 LINK | 0.0213% |
95 | Binance | LINK-BNB | $22.43 0.0068187 Eth | $123,335.00 5,499.962 LINK | 0.0181% |
96 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $22.49 0.0068260 Eth | $115,493.00 114,257.238 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.3758% |
97 | Bitkub | LINK-THB | $22.46 0.0068282 Eth | $113,970.00 5,073.721 LINK | 0.0167% |
98 | Coins.ph | LINK-PHP | $22.47 0.0068587 Eth | $91,800.00 4,080.490 LINK | 0.0134% |
99 | KuCoin | LINK-BTC | $22.45 0.0068236 Eth | $88,771.00 3,954.685 LINK | 0.0130% |
100 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.51 0.0068356 Eth | $71,487.00 3,216.160 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0106% |
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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