ETH Price: $2,615.58 (-3.30%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

733,892 ( 0.003%)

Market

Price

$18.47 @ 0.007062 ETH (-5.58%)

Onchain Market Cap

$18,470,000,000.00

Circulating Supply Market Cap

$11,790,615,044.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xe8d7b93f0473b337e5eab65ba897970de6eb56b0
Loading...
Loading
Loading...
Loading
Loading...
Loading

OVERVIEW

A blockchain-based middleware, acting as a bridge between cryptocurrency smart contracts, data feeds, APIs and traditional bank account payments.

Profitability / Loss

Since Initial Offer Price
:$0.11 16690.91% |ETH 0.0003846 1736.19%

Market

Volume (24H):$512,410,941.00
Market Capitalization:$11,790,615,044.00
Circulating Supply:638,099,970.00 LINK
Market Data Source: Coinmarketcap

ICO Information

ICO Start Date : Sep 19, 2017   
Total Cap : $32,000,000
ICO Price  : $0.11 | 0.0003846 ETH
Country : USA

# Exchange Pair Price  24H Volume % Volume
1
Binance
LINK-USDT$18.39
0.0070346 Eth
$63,778,053.00
3,396,156.820 LINK
20.4749%
2
MEXC
LINK-USDT$18.44
0.0070531 Eth
$34,985,996.00
1,897,299.170 LINK
11.4385%
3
Coinbase Exchange
LINK-USD$18.44
0.0070502 Eth
$25,639,973.00
1,390,378.680 LINK
8.3824%
4
Bybit
LINK-USDT$18.43
0.0070465 Eth
$21,675,633.00
1,153,979.008 LINK
6.9572%
5
HTX
LINK-USDT$18.41
0.0070353 Eth
$19,232,127.00
1,021,637.173 LINK
6.1593%
6
P2B
LINK-USDT$18.53
0.0070676 Eth
$13,050,754.00
704,318.370 LINK
4.2462%
7
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$18.48
0.0070627 Eth
$9,292,995.00
496,188.006 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.9914%
8
OKX
LINK-USDT$18.40
0.0070340 Eth
$7,259,186.00
385,183.997 LINK
2.3222%
9
Gate.io
LINK-USDT$18.41
0.0070396 Eth
$6,347,042.00
336,074.280 LINK
2.0261%
10
XT.COM
LINK-USDT$18.43
0.0070426 Eth
$6,345,515.00
337,698.230 LINK
2.0359%
11
Coinstore
LINK-USDT$18.38
0.0070266 Eth
$5,674,292.00
302,211.940 LINK
1.8220%
12
WhiteBIT
LINK-USDT$18.61
0.0071121 Eth
$5,373,860.00
288,715.930 LINK
1.7406%
13
Binance
LINK-USDC$18.50
0.0070615 Eth
$5,279,340.00
281,236.720 LINK
1.6955%
14
CoinW
LINK-USDT$18.44
0.0070460 Eth
$4,578,098.00
248,252.130 LINK
1.4967%
15
Bitunix
LINK-USDT$18.43
0.0070467 Eth
$4,363,036.00
236,622.430 LINK
1.4266%
16
Hotcoin
LINK-USDT$18.54
0.0070710 Eth
$4,360,013.00
235,172.340 LINK
1.4178%
17
KuCoin
LINK-USDT$18.40
0.0070342 Eth
$4,265,029.00
231,844.475 LINK
1.3978%
18
BTSE
LINK-USDT$18.39
0.0070335 Eth
$4,172,910.00
226,860.438 LINK
1.3677%
19
Binance
LINK-FDUSD$18.36
0.0070198 Eth
$4,151,433.00
221,672.010 LINK
1.3364%
20
Azbit
LINK-USDT$18.46
0.0070578 Eth
$3,755,942.00
199,959.481 LINK
1.2055%
21
BYDFi
LINK-USDT$18.46
0.0070631 Eth
$3,464,362.00
187,684.420 LINK
1.1315%
22
LATOKEN
LINK-USDT$18.45
0.0070541 Eth
$3,094,781.00
167,754.734 LINK
1.0114%
23
Kraken
LINK-USD$18.42
0.0070433 Eth
$2,665,263.00
144,695.761 LINK
0.8723%
24
QMall
LINK-USDT$18.46
0.0070651 Eth
$2,503,594.00
133,337.007 LINK
0.8039%
25
Coinbase Exchange
LINK-EUR$18.44
0.0070476 Eth
$2,200,828.00
119,323.830 LINK
0.7194%
26
FMCPAY
LINK-USDT$18.46
0.0070631 Eth
$2,187,190.00
116,393.878 LINK
0.7017%
27
Dex-Trade
LINK-USDT$18.46
0.0070572 Eth
$2,056,928.00
111,431.650 LINK
0.6718%
28
Bitvavo
LINK-EUR$18.47
0.0070633 Eth
$1,669,011.00
90,368.589 LINK
0.5448%
29
Coinbase Exchange
LINK-GBP$18.42
0.0070395 Eth
$1,589,826.00
86,295.890 LINK
0.5203%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$18.45
0.0070485 Eth
$1,477,395.00
79,047.103 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4766%
31
Biconomy.com
LINK-USDT$18.43
0.0070484 Eth
$1,415,199.00
75,089.860 LINK
0.4527%
32
FMCPAY
LINK-ETH$18.39
0.0070297 Eth
$1,231,328.00
65,912.800 LINK
0.3974%
33
Binance
LINK-BTC$18.41
0.0070380 Eth
$1,231,227.00
65,555.540 LINK
0.3952%
34
CoinEx
LINK-USDT$18.47
0.0070649 Eth
$1,174,083.00
62,000.501 LINK
0.3738%
35
PointPay
LINK-USDT$18.47
0.0070669 Eth
$1,033,768.00
55,066.782 LINK
0.3320%
36
FMCPAY
LINK-BTC$18.45
0.0070588 Eth
$1,027,385.00
54,766.900 LINK
0.3302%
37
Trubit
LINK-USDT$18.45
0.0070612 Eth
$856,879.00
45,540.830 LINK
0.2746%
38
Binance
LINK-ETH$18.55
0.0070762 Eth
$775,904.00
41,481.160 LINK
0.2501%
39
tanX
LINK-USDC$18.46
0.0070630 Eth
$758,688.00
40,329.370 LINK
0.2431%
40
Crypto.com Exchange
LINK-USDT$18.45
0.0070541 Eth
$698,100.00
37,840.960 LINK
0.2281%
41
Phemex
LINK-USDT$18.56
0.0070787 Eth
$647,985.00
34,913.160 LINK
0.2105%
42
EXMO
LINK-USDT$18.42
0.0070368 Eth
$639,035.00
34,698.676 LINK
0.2092%
43
Bitbank
LINK-JPY$18.55
0.0070942 Eth
$632,254.00
34,084.533 LINK
0.2055%
44
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$18.44
0.0070464 Eth
$573,061.00
30,465.872 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1837%
45
BigONE
LINK-USDT$18.53
0.0070730 Eth
$568,436.00
30,672.040 LINK
0.1849%
46
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$18.44
0.0070495 Eth
$532,030.00
57,041.216 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3439%
47
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$18.49
0.0070668 Eth
$493,323.00
26,425.791 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1593%
48
Bitstamp
LINK-USD$18.44
0.0070484 Eth
$483,844.00
26,238.854 LINK
0.1582%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.47
0.0070558 Eth
$458,430.00
24,483.861 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1476%
50
HashKey Exchange
LINK-USD$18.47
0.0070575 Eth
$453,015.00
24,047.670 LINK
0.1450%
51
QMall
LINK-USDC$18.43
0.0070466 Eth
$431,681.00
22,992.198 LINK
0.1386%
52
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$18.43
0.0070406 Eth
$405,191.00
21,286.810 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1283%
53
Binance
LINK-TRY$18.55
0.0070733 Eth
$380,385.00
20,185.700 LINK
0.1217%
54
WhiteBIT
LINK-BTC$18.43
0.0070494 Eth
$377,959.00
20,505.110 LINK
0.1236%
55
Gemini
LINK-USD$18.42
0.0070403 Eth
$370,832.00
20,133.222 LINK
0.1214%
56
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.42
0.0070436 Eth
$342,739.00
18,289.368 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1103%
57
WEEX
LINK-USDC$18.53
0.0070684 Eth
$328,482.00
17,452.300 LINK
0.1052%
58
Bybit
LINK-USDC$18.42
0.0070449 Eth
$325,819.00
17,428.408 LINK
0.1051%
59
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.48
0.0070612 Eth
$316,263.00
16,881.558 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1018%
60
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$18.41
0.0070335 Eth
$304,716.00
16,223.903 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0978%
61
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$18.47
0.0070576 Eth
$296,993.00
302,335.384 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.8227%
62
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$18.43
0.0070419 Eth
$296,045.00
15,896.094 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0958%
63
Binance
LINK-EUR$18.47
0.0070687 Eth
$254,203.00
13,486.170 LINK
0.0813%
64
BitMart
LINK-BTC$18.44
0.0070463 Eth
$247,449.00
13,417.740 LINK
0.0809%
65
BitDelta
LINK-USDT$18.47
0.0070633 Eth
$235,322.00
12,500.000 LINK
0.0754%
66
OKX
LINK-USDC$18.39
0.0070305 Eth
$226,025.00
12,031.602 LINK
0.0725%
67
Slex
LINK-ETH$18.41
0.0070398 Eth
$204,176.00
10,926.210 LINK
0.0659%
68
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$18.44
0.0070470 Eth
$199,632.00
10,654.993 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0642%
69
Bitci TR
LINK-TRY$18.37
0.0070226 Eth
$193,842.00
10,290.430 LINK
0.0620%
70
BitStorage
LINK-ETH$18.39
0.0070333 Eth
$162,550.00
8,837.220 LINK
0.0533%
71
Hotcoin
LINK-BTC$18.54
0.0070694 Eth
$151,964.00
8,198.300 LINK
0.0494%
72
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$18.39
0.0070297 Eth
$147,205.00
7,843.226 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0473%
73
LATOKEN
LINK-BTC$18.46
0.0070650 Eth
$142,428.00
7,714.042 LINK
0.0465%
74
BYDFi
LINK-USDC$18.47
0.0070631 Eth
$139,267.00
7,539.480 LINK
0.0455%
75
bitcastle
LINK-USDT$18.43
0.0070458 Eth
$136,662.00
7,276.070 LINK
0.0439%
76
Bitkub
LINK-THB$18.47
0.0070568 Eth
$135,830.00
7,354.258 LINK
0.0443%
77
WhiteBIT
LINK-EUR$18.65
0.0071332 Eth
$128,985.00
6,915.550 LINK
0.0417%
78
CoinTR
LINK-TRY$18.52
0.0070679 Eth
$114,502.00
6,081.720 LINK
0.0367%
79
KuCoin
LINK-USDC$18.40
0.0070355 Eth
$113,650.00
6,176.836 LINK
0.0372%
80
WhiteBIT
LINK-TRY$18.49
0.0070708 Eth
$104,159.00
5,633.780 LINK
0.0340%
81
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$18.48
0.0070626 Eth
$92,571.00
4,926.006 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0297%
82
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$18.46
0.0070565 Eth
$87,773.00
89,341.638 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.5386%
83
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$18.45
0.0070485 Eth
$86,936.00
88,518.539 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.5337%
84
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$18.42
0.0070424 Eth
$75,711.00
4,057.645 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0245%
85
BitMart
LINK-ETH$18.41
0.0070356 Eth
$69,420.00
3,769.960 LINK
0.0227%
86
Binance
LINK-BNB$18.39
0.0070275 Eth
$64,589.00
3,374.897 LINK
0.0203%
87
KuCoin
LINK-BTC$18.40
0.0070370 Eth
$62,835.00
3,414.283 LINK
0.0206%
88
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.44
0.0070513 Eth
$49,592.00
2,647.836 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0160%
89
Bitso
LINK-USD$18.50
0.0070671 Eth
$47,918.00
2,590.173 LINK
0.0156%
90
Hotcoin
LINK-ETH$18.41
0.0070363 Eth
$42,645.00
2,316.820 LINK
0.0140%
91
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$18.46
0.0070568 Eth
$39,576.00
2,107.631 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0127%
92
Foxbit
LINK-BRL$18.55
0.0070936 Eth
$37,226.00
1,966.866 LINK
0.0119%
93
Mercado Bitcoin
LINK-BRL$18.59
0.0071021 Eth
$34,562.00
1,859.489 LINK
0.0112%
94
Binance
LINK-BRL$18.57
0.0070830 Eth
$31,738.00
1,676.230 LINK
0.0101%
95
Bitstamp
LINK-GBP$18.46
0.0070561 Eth
$31,392.00
1,700.501 LINK
0.0103%
96
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$18.48
0.0070606 Eth
$25,759.00
1,380.490 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0083%
97
Dex-Trade
LINK-ETH$18.68
0.0070966 Eth
$23,753.00
1,271.570 LINK
0.0077%
98
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$18.33
0.0070046 Eth
$22,439.00
1,217.585 0X5947BB275C521040051D82396192181B413227A3
0.0073%
99
Uniswap V4 (Arbitrum)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$18.49
0.0070686 Eth
$19,608.92
1,036.214 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0062%
100
Bitexen
LINK-TRY$18.31
0.0069952 Eth
$14,872.16
812.349 LINK
0.0049%

Contract Source Code Verified (Exact Match)

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

Contract ABI

[{"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"}]

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

Deployed Bytecode

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

Swarm Source

bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
Loading...
Loading
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.