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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
721,421 ( -0.003%)
Market
Price
$11.25 @ 0.004621 ETH (-0.95%)
Onchain Market Cap
$11,250,000,000.00
Circulating Supply Market Cap
$7,054,863,051.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
95,414.21477981048 LINKValue
$1,073,409.92 ( ~440.9305 Eth) [0.0095%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | LBank | LINK-USDT | $11.25 0.0046264 Eth | $30,578,568.00 2,718,329.660 LINK | 22.6853% |
2 | Binance | LINK-USDT | $11.28 0.0046408 Eth | $12,331,448.00 1,094,572.780 LINK | 9.1345% |
3 | Coinbase Exchange | LINK-USD | $11.29 0.0046417 Eth | $9,017,749.00 798,454.860 LINK | 6.6633% |
4 | Bybit | LINK-USDT | $11.30 0.0046437 Eth | $7,080,116.00 628,234.826 LINK | 5.2428% |
5 | WhiteBIT | LINK-USDT | $11.26 0.0046297 Eth | $6,547,094.00 581,703.930 LINK | 4.8545% |
6 | HTX | LINK-USDT | $11.30 0.0046462 Eth | $6,403,234.00 567,891.304 LINK | 4.7392% |
7 | Websea | LINK-USDT | $11.25 0.0046293 Eth | $5,593,123.00 0.000 LINK | 0.0000% |
8 | Azbit | LINK-USDT | $11.25 0.0046287 Eth | $5,172,428.00 459,286.250 LINK | 3.8329% |
9 | Biconomy.com | LINK-USDT | $11.30 0.0046432 Eth | $4,105,057.00 364,549.110 LINK | 3.0423% |
10 | BVOX | LINK-USDT | $11.26 0.0046303 Eth | $3,157,930.00 280,313.600 LINK | 2.3393% |
11 | WEEX | LINK-USDT | $11.29 0.0046450 Eth | $2,815,873.00 249,926.480 LINK | 2.0857% |
12 | P2B | LINK-USDT | $11.32 0.0046528 Eth | $2,627,444.00 232,103.140 LINK | 1.9370% |
13 | Poloniex | LINK-USDT | $11.29 0.0046411 Eth | $2,269,641.00 201,361.197 LINK | 1.6804% |
14 | Slex | LINK-USDT | $11.27 0.0046317 Eth | $2,201,730.00 195,419.810 LINK | 1.6308% |
15 | ProBit Global | LINK-USDT | $11.29 0.0046434 Eth | $2,131,610.00 188,729.766 LINK | 1.5750% |
16 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.30 0.0046511 Eth | $2,086,022.00 184,030.208 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.5358% |
17 | OKX | LINK-USDT | $11.30 0.0046424 Eth | $2,019,250.00 179,503.806 LINK | 1.4980% |
18 | AscendEX (BitMax) | LINK-USDT | $11.31 0.0046469 Eth | $1,690,100.00 149,480.600 LINK | 1.2475% |
19 | Trubit | LINK-USDT | $11.28 0.0046386 Eth | $1,685,204.00 149,466.580 LINK | 1.2473% |
20 | DigiFinex | LINK-USDT | $11.30 0.0046431 Eth | $1,613,315.00 142,799.300 LINK | 1.1917% |
21 | Deepcoin | LINK-USDT | $11.29 0.0046450 Eth | $1,345,594.00 122,058.880 LINK | 1.0186% |
22 | Upbit | LINK-KRW | $11.33 0.0046564 Eth | $1,259,137.00 111,133.259 LINK | 0.9274% |
23 | KuCoin | LINK-USDT | $11.31 0.0046479 Eth | $1,218,700.00 107,770.894 LINK | 0.8994% |
24 | C-Patex | LINK-USDT | $11.26 0.0046318 Eth | $1,208,328.00 107,310.310 LINK | 0.8955% |
25 | XT.COM | LINK-USDT | $11.30 0.0046440 Eth | $1,115,072.00 98,977.020 LINK | 0.8260% |
26 | Toobit | LINK-USDT | $11.25 0.0046267 Eth | $1,079,607.00 95,866.160 LINK | 0.8000% |
27 | Oceanex | LINK-USDT | $11.30 0.0046462 Eth | $1,073,915.00 95,026.480 LINK | 0.7930% |
28 | Binance | LINK-BTC | $11.25 0.0046286 Eth | $965,527.00 85,536.950 LINK | 0.7138% |
29 | CoinW | LINK-USDT | $11.25 0.0046260 Eth | $957,308.00 85,108.230 LINK | 0.7103% |
30 | Azbit | LINK-ETH | $11.27 0.0046345 Eth | $956,575.00 84,305.365 LINK | 0.7036% |
31 | Crypto.com Exchange | LINK-USDT | $11.31 0.0046500 Eth | $867,623.00 76,691.510 LINK | 0.6400% |
32 | FMCPAY | LINK-USDT | $11.25 0.0046264 Eth | $808,085.00 71,784.926 LINK | 0.5991% |
33 | Gate.io | LINK-USDT | $11.30 0.0046432 Eth | $805,303.00 71,430.250 LINK | 0.5961% |
34 | BTSE | LINK-USDT | $11.25 0.0046301 Eth | $779,713.00 69,281.749 LINK | 0.5782% |
35 | BloFin | LINK-USDT | $11.27 0.0046346 Eth | $739,967.00 65,693.010 LINK | 0.5482% |
36 | Niza Global | LINK-USD | $11.26 0.0046275 Eth | $629,736.00 55,900.865 LINK | 0.4665% |
37 | Kraken | LINK-USD | $11.30 0.0046430 Eth | $628,630.00 55,643.976 LINK | 0.4644% |
38 | BYDFi | LINK-USDT | $11.24 0.0046256 Eth | $603,152.00 53,657.610 LINK | 0.4478% |
39 | Binance | LINK-FDUSD | $11.24 0.0046293 Eth | $596,425.00 52,985.260 LINK | 0.4422% |
40 | FMFW.io | LINK-USDT | $11.27 0.0046384 Eth | $590,137.00 52,343.140 LINK | 0.4368% |
41 | HitBTC | LINK-USDT | $11.27 0.0046384 Eth | $589,618.00 52,343.140 LINK | 0.4368% |
42 | Bitvavo | LINK-EUR | $11.26 0.0046320 Eth | $572,287.00 50,835.376 LINK | 0.4242% |
43 | tanX | LINK-USDC | $11.28 0.0046360 Eth | $568,198.00 50,417.650 LINK | 0.4208% |
44 | Hotcoin | LINK-USDT | $11.25 0.0046272 Eth | $558,703.00 49,666.800 LINK | 0.4145% |
45 | Bitunix | LINK-USDT | $11.30 0.0046459 Eth | $541,501.00 47,922.150 LINK | 0.3999% |
46 | QMall | LINK-USDT | $11.29 0.0046399 Eth | $510,271.00 45,299.860 LINK | 0.3780% |
47 | FameEX | LINK-USDT | $11.29 0.0046419 Eth | $496,409.00 44,065.582 LINK | 0.3677% |
48 | CoinEx | LINK-USDT | $11.30 0.0046431 Eth | $494,025.00 43,883.370 LINK | 0.3662% |
49 | FMCPAY | LINK-ETH | $11.25 0.0046281 Eth | $471,979.00 41,622.880 LINK | 0.3474% |
50 | FMCPAY | LINK-BTC | $11.24 0.0046233 Eth | $455,135.00 40,285.400 LINK | 0.3362% |
51 | WhiteBIT | LINK-BTC | $11.26 0.0046298 Eth | $336,791.00 29,922.790 LINK | 0.2497% |
52 | Kraken | LINK-USDT | $11.28 0.0046348 Eth | $320,313.00 28,398.911 LINK | 0.2370% |
53 | Crypto.com Exchange | LINK-USD | $11.30 0.0046454 Eth | $320,281.00 28,338.420 LINK | 0.2365% |
54 | Niza Global | LINK-USDT | $11.24 0.0046250 Eth | $319,986.00 28,387.126 LINK | 0.2369% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.27 0.0046318 Eth | $285,780.00 25,220.751 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2105% |
56 | MEXC | LINK-USDT | $11.25 0.0046285 Eth | $280,973.00 24,976.030 LINK | 0.2084% |
57 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.24 0.0046247 Eth | $224,036.00 19,829.108 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1655% |
58 | EXMO | LINK-USDT | $11.30 0.0046440 Eth | $214,238.00 18,959.282 LINK | 0.1582% |
59 | Pionex | LINK-USDT | $11.26 0.0046308 Eth | $212,229.00 18,833.130 LINK | 0.1572% |
60 | Bithumb | LINK-KRW | $11.29 0.0046462 Eth | $197,541.00 17,492.573 LINK | 0.1460% |
61 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.20 0.0046045 Eth | $192,306.00 17,041.667 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1422% |
62 | PointPay | LINK-USDT | $11.26 0.0046324 Eth | $189,714.00 16,842.082 LINK | 0.1406% |
63 | BitMart | LINK-BTC | $11.27 0.0046321 Eth | $177,623.00 15,764.960 LINK | 0.1316% |
64 | LATOKEN | LINK-BTC | $11.29 0.0046409 Eth | $174,119.00 15,421.013 LINK | 0.1287% |
65 | Bitbank | LINK-JPY | $11.34 0.0046592 Eth | $168,782.00 14,888.028 LINK | 0.1242% |
66 | BigONE | LINK-USDT | $11.30 0.0046430 Eth | $153,782.00 13,613.600 LINK | 0.1136% |
67 | WhiteBIT | LINK-EUR | $11.24 0.0046228 Eth | $144,709.00 12,878.170 LINK | 0.1075% |
68 | LATOKEN | LINK-USDT | $11.29 0.0046405 Eth | $127,802.00 11,319.768 LINK | 0.0945% |
69 | Hotcoin | LINK-ETH | $11.26 0.0046319 Eth | $122,573.00 10,885.240 LINK | 0.0908% |
70 | Coinbase Exchange | LINK-ETH | $11.27 0.0046386 Eth | $121,561.00 10,782.650 LINK | 0.0900% |
71 | Koinpark | LINK-USDT | $11.25 0.0046264 Eth | $114,868.00 10,211.343 LINK | 0.0852% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.24 0.0046228 Eth | $113,912.00 10,053.637 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0839% |
73 | Hotcoin | LINK-BTC | $11.26 0.0046326 Eth | $96,153.00 8,537.650 LINK | 0.0712% |
74 | Niza Global | LINK-EUR | $11.25 0.0046274 Eth | $71,080.00 6,314.864 LINK | 0.0527% |
75 | Kraken | LINK-EUR | $11.25 0.0046233 Eth | $71,039.00 6,314.864 LINK | 0.0527% |
76 | Slex | LINK-ETH | $11.30 0.0046426 Eth | $70,479.00 6,203.880 LINK | 0.0518% |
77 | Bit2Me | LINK-EUR | $11.25 0.0046287 Eth | $70,000.00 6,189.749 LINK | 0.0517% |
78 | Slex | LINK-BTC | $11.28 0.0046380 Eth | $61,084.00 5,399.600 LINK | 0.0451% |
79 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.29 0.0046447 Eth | $47,492.00 4,189.101 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0350% |
80 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.23 0.0046176 Eth | $34,343.00 34,420.063 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.2872% |
81 | TokoCrypto | LINK-USDT | $11.24 0.0046282 Eth | $28,681.00 2,551.992 LINK | 0.0213% |
82 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.23 0.0046176 Eth | $27,389.00 2,416.492 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0202% |
83 | Bitlo | LINK-USDT | $11.26 0.0046332 Eth | $24,660.00 2,187.650 LINK | 0.0183% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.27 0.0046337 Eth | $20,914.00 1,841.852 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0154% |
85 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.20 0.0046041 Eth | $20,221.00 20,211.584 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1687% |
86 | EXMO | LINK-BTC | $11.30 0.0046445 Eth | $19,909.63 1,761.741 LINK | 0.0147% |
87 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.26 0.0046340 Eth | $18,510.55 18,506.812 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1544% |
88 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.29 0.0046442 Eth | $13,579.79 1,197.135 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0100% |
89 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.26 0.0046284 Eth | $9,040.00 808.240 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0067% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.27 0.0046325 Eth | $7,825.44 694.020 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0058% |
91 | CEX.IO | LINK-USDT | $11.28 0.0046424 Eth | $6,797.70 600.231 LINK | 0.0050% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.32 0.0046509 Eth | $3,834.48 324.872 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0027% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.26 0.0046275 Eth | $3,666.46 324.705 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0027% |
94 | CoinEx | LINK-USDC | $11.25 0.0046242 Eth | $1,958.81 173.752 LINK | 0.0015% |
95 | CoinEx | LINK-BTC | $11.26 0.0046256 Eth | $1,955.72 172.717 LINK | 0.0014% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.31 0.0046518 Eth | $1,543.05 135.689 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0011% |
97 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.22 0.0046095 Eth | $877.57 77.733 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0006% |
98 | Quickswap | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.31 0.0046531 Eth | $809.03 62.869 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0005% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $11.29 0.0046461 Eth | $689.91 60.806 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0005% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $11.27 0.0046378 Eth | $432.79 38.397 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0003% |
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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