ETH Price: $3,614.67 (+4.88%)
Gas: 8.79 Gwei
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,298 ( 0.036%)

Market

Price

$23.41 @ 0.006476 ETH (+6.26%)

Onchain Market Cap

$23,410,000,000.00

Circulating Supply Market Cap

$14,792,782,178.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
500.10736371 LINK

Value
$11,707.51 ( ~3.2389 Eth) [0.0001%]
0xb7e3182862855111D37A3Be466a566CbfE1999BE
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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 21181.82% |ETH 0.0003846 1583.83%

Market

Volume (24H):$1,228,238,058.00
Market Capitalization:$14,792,782,178.00
Circulating Supply:631,099,972.00 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$23.45
0.0065064 Eth
$142,829,654.00
6,286,833.210 LINK
22.6209%
2
Coinbase Exchange
LINK-USD$23.44
0.0064950 Eth
$47,440,758.00
2,024,095.820 LINK
7.2830%
3
Upbit
LINK-KRW$23.53
0.0065194 Eth
$35,524,575.00
1,509,557.738 LINK
5.4316%
4
Bitget
LINK-USDT$23.42
0.0064893 Eth
$31,826,920.00
1,393,987.641 LINK
5.0158%
5
MEXC
LINK-USDT$23.44
0.0065028 Eth
$28,231,153.00
1,204,463.180 LINK
4.3338%
6
Bybit
LINK-USDT$23.44
0.0064942 Eth
$26,716,873.00
1,171,413.205 LINK
4.2149%
7
CoinW
LINK-USDT$23.43
0.0064949 Eth
$26,643,420.00
1,137,121.250 LINK
4.0915%
8
OKX
LINK-USDT$23.44
0.0064935 Eth
$21,978,240.00
963,769.966 LINK
3.4678%
9
Slex
LINK-USDT$23.46
0.0065059 Eth
$21,886,684.00
962,984.690 LINK
3.4649%
10
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.52
0.0065175 Eth
$21,156,892.00
903,777.908 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.2519%
11
DigiFinex
LINK-USDT$23.41
0.0064870 Eth
$18,872,000.00
806,087.510 LINK
2.9004%
12
FameEX
LINK-USDT$23.44
0.0064993 Eth
$14,263,406.00
627,844.024 LINK
2.2591%
13
XT.COM
LINK-USDT$23.43
0.0064920 Eth
$14,262,928.00
627,755.190 LINK
2.2587%
14
Coinstore
LINK-USDT$23.43
0.0064915 Eth
$12,718,137.00
559,708.140 LINK
2.0139%
15
Bitunix
LINK-USDT$23.41
0.0064975 Eth
$11,326,297.00
483,627.490 LINK
1.7402%
16
Binance
LINK-FDUSD$23.46
0.0065081 Eth
$9,565,283.00
418,458.800 LINK
1.5057%
17
BYDFi
LINK-USDT$23.43
0.0064948 Eth
$9,498,936.00
405,416.150 LINK
1.4587%
18
HTX
LINK-USDT$23.43
0.0064919 Eth
$9,418,127.00
413,995.513 LINK
1.4896%
19
Kraken
LINK-USD$23.41
0.0064855 Eth
$8,169,351.00
349,014.937 LINK
1.2558%
20
Biconomy.com
LINK-USDT$23.40
0.0064962 Eth
$8,139,868.00
357,573.910 LINK
1.2866%
21
Bithumb
LINK-KRW$23.53
0.0065205 Eth
$7,674,376.00
326,109.839 LINK
1.1734%
22
LBank
LINK-USDT$23.48
0.0065066 Eth
$7,309,199.00
311,244.300 LINK
1.1199%
23
LATOKEN
LINK-USDT$23.43
0.0064948 Eth
$6,921,162.00
295,396.363 LINK
1.0629%
24
Binance
LINK-USDC$23.43
0.0064933 Eth
$6,378,387.00
278,580.700 LINK
1.0024%
25
QMall
LINK-USDT$23.46
0.0065075 Eth
$5,796,952.00
254,991.767 LINK
0.9175%
26
Dex-Trade
LINK-USDT$23.43
0.0064939 Eth
$4,744,702.00
202,497.380 LINK
0.7286%
27
Hotcoin
LINK-USDT$23.44
0.0064975 Eth
$3,678,937.00
156,945.780 LINK
0.5647%
28
KuCoin
LINK-USDT$23.42
0.0064904 Eth
$3,534,940.00
150,907.323 LINK
0.5430%
29
FMCPAY
LINK-USDT$23.42
0.0064893 Eth
$3,520,374.00
154,209.808 LINK
0.5549%
30
BTSE
LINK-USDT$23.45
0.0065056 Eth
$3,274,426.00
139,645.069 LINK
0.5025%
31
CoinEx
LINK-USDT$23.47
0.0065069 Eth
$3,176,603.00
137,485.674 LINK
0.4947%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.50
0.0065153 Eth
$2,866,203.00
122,478.563 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4407%
33
Bitvavo
LINK-EUR$23.43
0.0064959 Eth
$2,212,433.00
94,410.721 LINK
0.3397%
34
PointPay
LINK-USDT$23.46
0.0065083 Eth
$2,195,848.00
96,438.667 LINK
0.3470%
35
Dcoin
LINK-USDT$23.47
0.0065089 Eth
$2,166,276.00
92,301.000 LINK
0.3321%
36
EXMO
LINK-USDT$23.41
0.0064876 Eth
$2,044,880.00
87,345.046 LINK
0.3143%
37
ProBit Global
LINK-USDT$23.42
0.0064920 Eth
$1,670,027.00
71,307.751 LINK
0.2566%
38
Phemex
LINK-USDT$23.44
0.0065031 Eth
$1,576,016.00
67,237.300 LINK
0.2419%
39
FMCPAY
LINK-ETH$23.41
0.0064872 Eth
$1,548,287.00
66,235.840 LINK
0.2383%
40
FMCPAY
LINK-BTC$23.43
0.0064995 Eth
$1,495,124.00
65,181.500 LINK
0.2345%
41
Kraken
LINK-EUR$23.45
0.0064967 Eth
$1,493,261.00
63,686.121 LINK
0.2292%
42
Coinbase Exchange
LINK-EUR$23.46
0.0065013 Eth
$1,481,979.00
63,167.930 LINK
0.2273%
43
tanX
LINK-USDC$23.41
0.0064948 Eth
$1,312,953.00
57,893.300 LINK
0.2083%
44
Bybit
LINK-USDC$23.44
0.0064935 Eth
$1,202,115.00
52,340.272 LINK
0.1883%
45
BitStorage
LINK-USDT$23.45
0.0064983 Eth
$1,184,370.00
50,500.640 LINK
0.1817%
46
Kraken
LINK-USDT$23.42
0.0064901 Eth
$1,133,541.00
48,393.124 LINK
0.1741%
47
WhiteBIT
LINK-BTC$23.46
0.0065033 Eth
$1,081,452.00
46,100.070 LINK
0.1659%
48
EarnBIT
LINK-USDT$23.43
0.0065003 Eth
$1,043,397.00
45,724.330 LINK
0.1645%
49
Bitbank
LINK-JPY$23.41
0.0064891 Eth
$978,749.00
41,808.283 LINK
0.1504%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.49
0.0065129 Eth
$954,517.00
40,574.808 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1460%
51
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.46
0.0065033 Eth
$879,385.00
37,415.029 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1346%
52
Gemini
LINK-USD$23.44
0.0064947 Eth
$828,765.00
35,357.393 LINK
0.1272%
53
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.37
0.0064789 Eth
$770,400.00
32,880.407 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1183%
54
Binance
LINK-EUR$23.39
0.0064822 Eth
$769,803.00
33,866.980 LINK
0.1219%
55
Koinpark
LINK-USDT$23.46
0.0065084 Eth
$756,916.00
32,265.773 LINK
0.1161%
56
WhiteBIT
LINK-TRY$23.37
0.0064773 Eth
$753,821.00
32,254.480 LINK
0.1161%
57
Coinbase Exchange
LINK-GBP$23.44
0.0064979 Eth
$742,685.00
31,681.560 LINK
0.1140%
58
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.52
0.0065175 Eth
$709,470.00
46,993.061 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1691%
59
itBit
LINK-USD$23.41
0.0064872 Eth
$654,158.00
27,943.536 LINK
0.1005%
60
Binance
LINK-TRY$23.46
0.0064996 Eth
$618,485.00
27,028.260 LINK
0.0973%
61
ProBit Global
LINK-BTC$23.42
0.0064987 Eth
$613,545.00
26,193.611 LINK
0.0942%
62
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.50
0.0065123 Eth
$582,119.00
25,201.171 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0907%
63
BigONE
LINK-USDT$23.37
0.0064819 Eth
$565,866.00
24,216.770 LINK
0.0871%
64
Coinbase Exchange
LINK-ETH$23.41
0.0064912 Eth
$513,306.00
21,929.450 LINK
0.0789%
65
GMO Japan
LINK-JPY$23.37
0.0064828 Eth
$497,345.00
21,279.300 LINK
0.0766%
66
Bitbegin
LINK-USDT$23.43
0.0064961 Eth
$476,759.00
20,987.228 LINK
0.0755%
67
Coinbase Exchange
LINK-BTC$23.43
0.0064906 Eth
$446,410.00
19,056.930 LINK
0.0686%
68
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.50
0.0065144 Eth
$442,586.00
423,364.107 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.5233%
69
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.47
0.0065064 Eth
$438,740.00
18,740.896 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0674%
70
HashKey Exchange
LINK-USD$23.46
0.0065094 Eth
$436,174.00
19,444.054 LINK
0.0700%
71
Slex
LINK-ETH$23.42
0.0064910 Eth
$430,886.00
18,449.390 LINK
0.0664%
72
Coinbase Exchange
LINK-USDT$23.48
0.0065044 Eth
$421,885.00
17,968.784 LINK
0.0647%
73
Bitkub
LINK-THB$23.29
0.0064585 Eth
$370,674.00
15,913.444 LINK
0.0573%
74
Bitget
LINK-EUR$23.40
0.0064835 Eth
$313,105.00
13,809.090 LINK
0.0497%
75
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.49
0.0065129 Eth
$306,033.00
296,732.323 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.0677%
76
BitMart
LINK-BTC$23.45
0.0064979 Eth
$286,956.00
12,239.440 LINK
0.0440%
77
BTCMarkets
LINK-AUD$23.45
0.0064984 Eth
$267,452.00
11,404.961 LINK
0.0410%
78
OKX
LINK-USDC$23.44
0.0064946 Eth
$265,999.00
11,626.918 LINK
0.0418%
79
LATOKEN
LINK-BTC$23.44
0.0065081 Eth
$265,536.00
11,326.256 LINK
0.0408%
80
KuCoin
LINK-USDC$23.36
0.0064721 Eth
$259,037.00
11,089.671 LINK
0.0399%
81
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.38
0.0064811 Eth
$247,024.00
10,830.084 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0390%
82
Bitci TR
LINK-TRY$23.55
0.0065283 Eth
$230,283.00
10,145.660 LINK
0.0365%
83
BitDelta
LINK-USDT$23.43
0.0064933 Eth
$229,129.00
10,065.000 LINK
0.0362%
84
Coinone
LINK-KRW$23.55
0.0065244 Eth
$209,770.00
8,908.677 LINK
0.0321%
85
PointPay
LINK-BTC$23.43
0.0064930 Eth
$198,286.00
8,572.077 LINK
0.0308%
86
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.53
0.0065247 Eth
$188,059.00
8,011.756 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0288%
87
BitStorage
LINK-ETH$23.45
0.0065020 Eth
$179,920.00
7,672.240 LINK
0.0276%
88
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.49
0.0065091 Eth
$165,929.00
7,100.726 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0255%
89
Binance US
LINK-USDT$23.46
0.0065083 Eth
$146,256.00
6,234.640 LINK
0.0224%
90
Bitso
LINK-USD$23.40
0.0064878 Eth
$134,621.00
5,752.904 LINK
0.0207%
91
Hotcoin
LINK-BTC$23.43
0.0064947 Eth
$133,268.00
5,687.810 LINK
0.0205%
92
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.45
0.0065051 Eth
$132,385.00
5,665.674 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0204%
93
EXMO
LINK-BTC$23.40
0.0064846 Eth
$126,175.00
5,391.937 LINK
0.0194%
94
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.45
0.0065014 Eth
$125,225.00
5,483.922 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0197%
95
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.52
0.0065182 Eth
$96,640.00
4,308.035 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0155%
96
BitMart
LINK-ETH$23.44
0.0064978 Eth
$88,763.00
3,786.040 LINK
0.0136%
97
Mercado Bitcoin
LINK-BRL$23.51
0.0065139 Eth
$84,049.00
3,575.613 LINK
0.0129%
98
Independent Reserve
LINK-AUD$23.41
0.0064910 Eth
$64,395.00
2,750.711 LINK
0.0099%
99
Coins.ph
LINK-PHP$23.52
0.0065206 Eth
$58,858.00
2,580.029 LINK
0.0093%
100
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.40
0.0064868 Eth
$55,334.00
2,368.374 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0085%

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

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Deployed Bytecode

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Swarm Source

bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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