ETH Price: $2,123.58 (-6.70%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

741,838 ( 0.045%)

Market

Price

$14.06 @ 0.006621 ETH (-13.36%)

Onchain Market Cap

$14,060,000,000.00

Circulating Supply Market Cap

$9,000,137,465.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0x8064f423a1355975a5ac35baa913a6f4bcde94a8
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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 12681.82% |ETH 0.0003846 1621.53%

Market

Volume (24H):$1,114,655,683.00
Market Capitalization:$9,000,137,465.00
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$14.09
0.0066385 Eth
$158,214,145.00
11,151,080.340 LINK
23.5533%
2
Coinbase Exchange
LINK-USD$14.08
0.0066093 Eth
$64,422,091.00
4,574,782.740 LINK
9.6628%
3
Gate.io
LINK-USDT$14.04
0.0066165 Eth
$40,321,167.00
2,851,492.760 LINK
6.0229%
4
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$14.08
0.0066333 Eth
$21,306,700.00
1,484,479.352 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.1355%
5
HTX
LINK-USDT$14.05
0.0066176 Eth
$21,009,629.00
1,485,641.200 LINK
3.1380%
6
OKX
LINK-USDT$14.07
0.0066246 Eth
$19,971,031.00
1,413,554.082 LINK
2.9857%
7
DigiFinex
LINK-USDT$14.06
0.0066270 Eth
$19,629,324.00
1,395,707.830 LINK
2.9480%
8
WhiteBIT
LINK-USDT$14.08
0.0066076 Eth
$18,691,180.00
1,327,385.280 LINK
2.8037%
9
P2B
LINK-USDT$13.94
0.0065830 Eth
$18,610,021.00
1,335,059.960 LINK
2.8199%
10
Bybit
LINK-USDT$14.04
0.0066105 Eth
$17,831,692.00
1,252,376.398 LINK
2.6453%
11
Binance
LINK-USDC$14.10
0.0066434 Eth
$16,204,830.00
1,143,458.240 LINK
2.4152%
12
XT.COM
LINK-USDT$14.07
0.0066044 Eth
$15,812,882.00
1,113,728.810 LINK
2.3524%
13
MEXC
LINK-EUR$14.10
0.0066181 Eth
$15,176,757.00
1,076,101.240 LINK
2.2729%
14
Bitget
LINK-USDT$14.07
0.0066291 Eth
$14,968,269.00
1,052,889.275 LINK
2.2239%
15
LBank
LINK-USDT$14.09
0.0065991 Eth
$13,746,461.00
975,352.340 LINK
2.0601%
16
Hotcoin
LINK-USDT$14.07
0.0066044 Eth
$12,093,266.00
859,262.620 LINK
1.8149%
17
Coinstore
LINK-USDT$14.07
0.0066031 Eth
$11,846,291.00
834,707.620 LINK
1.7631%
18
KuCoin
LINK-USDT$14.04
0.0066131 Eth
$10,997,425.00
783,520.189 LINK
1.6549%
19
Binance
LINK-FDUSD$14.16
0.0066729 Eth
$10,462,537.00
737,427.360 LINK
1.5576%
20
CoinW
LINK-USDT$14.04
0.0066149 Eth
$9,947,604.00
708,533.190 LINK
1.4966%
21
Slex
LINK-USDT$14.15
0.0066443 Eth
$9,483,507.00
671,040.990 LINK
1.4174%
22
Azbit
LINK-USDT$14.07
0.0065933 Eth
$9,106,170.00
640,849.558 LINK
1.3536%
23
BYDFi
LINK-USDT$14.12
0.0066463 Eth
$8,783,322.00
621,829.700 LINK
1.3134%
24
Bitunix
LINK-USDT$14.08
0.0066512 Eth
$8,591,053.00
609,909.420 LINK
1.2882%
25
LATOKEN
LINK-USDT$14.14
0.0066299 Eth
$7,125,921.00
503,967.078 LINK
1.0645%
26
QMall
LINK-USDT$14.09
0.0066092 Eth
$6,545,566.00
460,843.174 LINK
0.9734%
27
Kraken
LINK-USD$14.06
0.0066241 Eth
$6,512,666.00
463,229.977 LINK
0.9784%
28
BTSE
LINK-USDT$14.05
0.0065858 Eth
$4,671,055.00
332,362.491 LINK
0.7020%
29
Bitvavo
LINK-EUR$14.13
0.0066254 Eth
$4,288,822.00
303,596.286 LINK
0.6413%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$14.08
0.0066235 Eth
$3,832,964.00
269,363.449 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5689%
31
Dex-Trade
LINK-USDT$14.14
0.0066552 Eth
$3,474,290.00
245,662.700 LINK
0.5189%
32
Coinbase Exchange
LINK-EUR$14.06
0.0066250 Eth
$3,330,167.00
236,832.070 LINK
0.5002%
33
FMCPAY
LINK-USDT$14.11
0.0066166 Eth
$3,100,162.00
216,404.846 LINK
0.4571%
34
CoinEx
LINK-USDT$14.07
0.0066319 Eth
$2,983,034.00
209,093.145 LINK
0.4416%
35
Hibt
LINK-USDT$14.06
0.0065873 Eth
$2,469,722.00
174,848.184 LINK
0.3693%
36
Coinbase Exchange
LINK-GBP$14.08
0.0066351 Eth
$2,378,589.00
168,903.060 LINK
0.3568%
37
Biconomy.com
LINK-USDT$14.09
0.0066386 Eth
$2,274,588.00
161,036.500 LINK
0.3401%
38
PointPay
LINK-USDT$14.07
0.0065953 Eth
$2,212,545.00
155,426.564 LINK
0.3283%
39
Binance
LINK-ETH$14.05
0.0066209 Eth
$2,185,576.00
153,783.190 LINK
0.3248%
40
AscendEX (BitMax)
LINK-USDT$14.03
0.0066109 Eth
$1,931,747.00
137,673.900 LINK
0.2908%
41
Kraken
LINK-EUR$14.10
0.0066446 Eth
$1,505,685.00
106,764.289 LINK
0.2255%
42
Phemex
LINK-USDT$14.07
0.0066010 Eth
$1,447,945.00
102,930.810 LINK
0.2174%
43
LATOKEN
LINK-BTC$14.11
0.0066156 Eth
$1,411,841.00
100,065.173 LINK
0.2114%
44
Coinbase Exchange
LINK-USDT$14.08
0.0066293 Eth
$1,389,671.00
98,727.503 LINK
0.2085%
45
FMCPAY
LINK-ETH$14.09
0.0066083 Eth
$1,346,721.00
94,489.440 LINK
0.1996%
46
BigONE
LINK-USDT$13.99
0.0066128 Eth
$1,336,073.00
95,500.780 LINK
0.2017%
47
QMall
LINK-USDC$14.14
0.0066336 Eth
$1,244,192.00
87,873.476 LINK
0.1856%
48
Gemini
LINK-USD$14.06
0.0066195 Eth
$1,228,260.00
87,389.574 LINK
0.1846%
49
Kraken
LINK-USDT$14.12
0.0066529 Eth
$1,211,911.00
85,826.655 LINK
0.1813%
50
FMCPAY
LINK-BTC$14.06
0.0066159 Eth
$1,209,050.00
84,843.700 LINK
0.1792%
51
Bitbank
LINK-JPY$14.23
0.0066626 Eth
$1,175,847.00
82,652.469 LINK
0.1746%
52
EXMO
LINK-USDT$14.03
0.0066245 Eth
$1,167,568.00
83,238.264 LINK
0.1758%
53
OKX
LINK-USDC$14.08
0.0066322 Eth
$1,151,756.00
82,329.810 LINK
0.1739%
54
Binance
LINK-EUR$14.09
0.0066406 Eth
$1,120,136.00
78,324.320 LINK
0.1654%
55
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.03
0.0066026 Eth
$1,069,254.00
75,172.873 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1588%
56
WhiteBIT
LINK-BTC$13.97
0.0066223 Eth
$988,898.00
70,794.060 LINK
0.1495%
57
EarnBIT
LINK-USDT$14.28
0.0066858 Eth
$974,983.00
68,379.431 LINK
0.1444%
58
BitStorage
LINK-USDT$14.03
0.0066280 Eth
$908,853.00
64,782.970 LINK
0.1368%
59
Bybit
LINK-USDC$13.99
0.0065912 Eth
$906,773.00
64,771.895 LINK
0.1368%
60
Trubit
LINK-USDT$14.13
0.0066487 Eth
$864,262.00
60,817.050 LINK
0.1285%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$14.01
0.0065900 Eth
$833,309.00
59,862.928 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1264%
62
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$14.10
0.0066447 Eth
$743,208.00
106,953.643 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2259%
63
AscendEX (BitMax)
LINK-BTC$14.03
0.0066093 Eth
$710,301.00
50,634.800 LINK
0.1070%
64
WhiteBIT
LINK-TRY$14.20
0.0066519 Eth
$677,629.00
47,736.170 LINK
0.1008%
65
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$14.07
0.0066205 Eth
$652,159.00
46,922.866 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0991%
66
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$14.00
0.0065858 Eth
$633,919.00
44,390.366 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0938%
67
XT.COM
LINK-ETH$14.09
0.0066365 Eth
$613,247.00
43,061.940 LINK
0.0910%
68
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$14.12
0.0066523 Eth
$595,559.00
41,588.458 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0878%
69
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$14.07
0.0066200 Eth
$565,724.00
39,739.810 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0839%
70
Binance
LINK-TRY$14.09
0.0066392 Eth
$553,684.00
38,915.820 LINK
0.0822%
71
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.10
0.0066325 Eth
$545,601.00
38,348.180 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0810%
72
Coinbase Exchange
LINK-BTC$14.14
0.0066614 Eth
$509,652.00
36,047.030 LINK
0.0761%
73
Kraken
LINK-USDC$14.19
0.0066868 Eth
$507,464.00
35,756.168 LINK
0.0755%
74
tanX
LINK-USDC$14.14
0.0066525 Eth
$483,372.00
34,482.810 LINK
0.0728%
75
BitMart
LINK-BTC$14.02
0.0066078 Eth
$424,339.00
30,256.740 LINK
0.0639%
76
GMO Japan
LINK-JPY$14.11
0.0066459 Eth
$413,570.00
29,319.400 LINK
0.0619%
77
BYDFi
LINK-USDC$14.12
0.0066440 Eth
$409,900.00
29,029.580 LINK
0.0613%
78
Hotcoin
LINK-BTC$14.10
0.0065994 Eth
$408,896.00
29,000.280 LINK
0.0613%
79
itBit
LINK-USD$14.13
0.0066174 Eth
$396,485.00
28,059.771 LINK
0.0593%
80
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.07
0.0066216 Eth
$392,720.00
27,554.881 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0582%
81
BitStorage
LINK-ETH$14.08
0.0066345 Eth
$379,128.00
26,924.000 LINK
0.0569%
82
BitDelta
LINK-USDT$14.04
0.0066080 Eth
$371,420.00
26,253.000 LINK
0.0555%
83
HashKey Exchange
LINK-USD$14.13
0.0066529 Eth
$362,075.00
25,332.329 LINK
0.0535%
84
bitcastle
LINK-USDT$14.15
0.0066353 Eth
$298,006.00
20,980.730 LINK
0.0443%
85
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$14.13
0.0066234 Eth
$274,354.00
19,262.839 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0407%
86
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$14.10
0.0066416 Eth
$272,033.00
19,205.431 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0406%
87
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$14.03
0.0066114 Eth
$245,617.00
17,153.202 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0362%
88
Slex
LINK-ETH$14.11
0.0066069 Eth
$240,921.00
16,897.460 LINK
0.0357%
89
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$14.04
0.0066039 Eth
$228,910.00
234,866.025 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.4961%
90
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$14.09
0.0066409 Eth
$213,641.00
15,754.672 0X5947BB275C521040051D82396192181B413227A3
0.0333%
91
Bitkub
LINK-THB$14.28
0.0067040 Eth
$203,569.00
14,254.933 LINK
0.0301%
92
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$14.09
0.0066315 Eth
$201,188.00
14,167.092 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0299%
93
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.06
0.0066219 Eth
$198,899.00
13,981.783 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0295%
94
WhiteBIT
LINK-EUR$14.17
0.0066401 Eth
$196,627.00
13,876.390 LINK
0.0293%
95
Kraken
LINK-GBP$14.07
0.0066315 Eth
$172,461.00
12,253.087 LINK
0.0259%
96
Bitso
LINK-USD$14.09
0.0065982 Eth
$159,916.00
11,353.257 LINK
0.0240%
97
PointPay
LINK-BTC$14.11
0.0066106 Eth
$154,502.00
10,748.758 LINK
0.0227%
98
Binance
LINK-BNB$14.08
0.0066350 Eth
$130,015.00
9,302.731 LINK
0.0196%
99
OKX
LINK-EUR$14.13
0.0066557 Eth
$107,568.00
7,737.883 LINK
0.0163%
100
Binance US
LINK-USDT$14.13
0.0066156 Eth
$102,138.00
7,226.213 LINK
0.0153%

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

API
[{"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
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