ETH Price: $3,256.37 (-1.97%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

727,327 ( 0.027%)

Market

Price

$23.02 @ 0.007069 ETH (-5.71%)

Onchain Market Cap

$23,020,000,000.00

Circulating Supply Market Cap

$14,553,024,798.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
26.2740982 LINK

Value
$604.83 ( ~0.185737761146241 Eth) [0.0000%]
0x5eb507DA6A71D06bE0254b499Eb2846050f8c729
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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 20827.27% |ETH 0.0003846 1738.01%

Market

Volume (24H):$1,194,639,110.00
Market Capitalization:$14,553,024,798.00
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
Coinbase Exchange
LINK-USD$23.26
0.0072570 Eth
$81,910,103.00
3,521,197.790 LINK
14.0627%
2
Bybit
LINK-USDT$23.35
0.0072613 Eth
$46,823,609.00
1,997,848.034 LINK
7.9789%
3
P2B
LINK-USDT$23.31
0.0072727 Eth
$32,547,180.00
1,396,137.600 LINK
5.5758%
4
Slex
LINK-USDT$23.13
0.0072269 Eth
$23,427,146.00
993,338.130 LINK
3.9671%
5
DigiFinex
LINK-USDT$23.44
0.0072882 Eth
$22,160,844.00
945,566.180 LINK
3.7763%
6
OKX
LINK-USDT$23.37
0.0072662 Eth
$22,068,325.00
942,639.362 LINK
3.7647%
7
HTX
LINK-USDT$23.46
0.0072954 Eth
$19,623,296.00
834,466.710 LINK
3.3326%
8
XT.COM
LINK-USDT$23.11
0.0072305 Eth
$17,640,574.00
755,372.340 LINK
3.0168%
9
Azbit
LINK-USDT$23.15
0.0072229 Eth
$17,457,171.00
747,329.959 LINK
2.9846%
10
MEXC
LINK-USDT$23.16
0.0072441 Eth
$16,174,545.00
698,397.190 LINK
2.7892%
11
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$22.84
0.0071239 Eth
$15,828,177.00
686,745.286 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.7427%
12
Coinstore
LINK-USDT$23.13
0.0072361 Eth
$15,198,380.00
650,410.290 LINK
2.5976%
13
Binance
LINK-FDUSD$23.10
0.0072278 Eth
$14,593,924.00
621,789.610 LINK
2.4833%
14
Bitunix
LINK-USDT$23.07
0.0072183 Eth
$13,071,283.00
566,437.080 LINK
2.2622%
15
CoinW
LINK-USDT$23.06
0.0072145 Eth
$11,824,976.00
512,812.920 LINK
2.0480%
16
Kraken
LINK-USD$23.32
0.0072522 Eth
$11,408,776.00
489,212.625 LINK
1.9538%
17
KuCoin
LINK-USDT$23.45
0.0072928 Eth
$10,955,793.00
467,168.825 LINK
1.8657%
18
BYDFi
LINK-USDT$23.04
0.0071807 Eth
$9,735,804.00
422,524.910 LINK
1.6875%
19
Binance
LINK-USDC$23.42
0.0072835 Eth
$9,190,847.00
394,530.660 LINK
1.5757%
20
LATOKEN
LINK-USDT$23.10
0.0072055 Eth
$8,796,333.00
380,718.148 LINK
1.5205%
21
LBank
LINK-USDT$23.32
0.0072529 Eth
$8,690,310.00
372,722.880 LINK
1.4886%
22
BTSE
LINK-USDT$23.01
0.0071950 Eth
$8,658,174.00
376,252.346 LINK
1.5027%
23
QMall
LINK-USDT$23.23
0.0072452 Eth
$7,379,801.00
316,270.574 LINK
1.2631%
24
Hotcoin
LINK-USDT$23.05
0.0072129 Eth
$7,057,683.00
306,175.230 LINK
1.2228%
25
Bitget
LINK-USDT$23.43
0.0072874 Eth
$6,003,203.00
257,680.194 LINK
1.0291%
26
Coinbase Exchange
LINK-EUR$23.14
0.0072143 Eth
$5,468,479.00
236,338.800 LINK
0.9439%
27
Bitvavo
LINK-EUR$23.09
0.0072051 Eth
$5,363,518.00
232,297.432 LINK
0.9277%
28
Dex-Trade
LINK-USDT$23.28
0.0072769 Eth
$5,340,071.00
229,344.256 LINK
0.9159%
29
Coinbase Exchange
LINK-USDT$23.13
0.0072348 Eth
$5,254,720.00
227,186.300 LINK
0.9073%
30
FMCPAY
LINK-USDT$23.03
0.0072052 Eth
$4,214,679.00
179,847.246 LINK
0.7183%
31
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$22.95
0.0071564 Eth
$3,685,630.00
159,953.105 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.6388%
32
CoinEx
LINK-USDT$23.00
0.0071986 Eth
$3,148,988.00
134,644.076 LINK
0.5377%
33
Biconomy.com
LINK-USDT$23.32
0.0072542 Eth
$2,725,859.00
116,234.640 LINK
0.4642%
34
PointPay
LINK-USDT$23.21
0.0072415 Eth
$2,593,988.00
110,895.014 LINK
0.4429%
35
Coinbase Exchange
LINK-ETH$23.10
0.0072257 Eth
$2,369,249.00
102,562.280 LINK
0.4096%
36
ProBit Global
LINK-USDT$23.12
0.0072297 Eth
$2,172,356.00
93,940.913 LINK
0.3752%
37
Phemex
LINK-USDT$23.19
0.0072488 Eth
$1,969,641.00
84,919.450 LINK
0.3391%
38
Coinbase Exchange
LINK-GBP$23.28
0.0072751 Eth
$1,804,639.00
77,524.390 LINK
0.3096%
39
FMCPAY
LINK-BTC$23.02
0.0072039 Eth
$1,800,194.00
76,312.700 LINK
0.3048%
40
EXMO
LINK-USDT$23.37
0.0072705 Eth
$1,773,944.00
75,899.885 LINK
0.3031%
41
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$22.99
0.0071683 Eth
$1,744,761.00
75,953.297 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.3033%
42
FMCPAY
LINK-ETH$23.09
0.0071973 Eth
$1,713,599.00
74,191.680 LINK
0.2963%
43
Bitbank
LINK-JPY$23.27
0.0072827 Eth
$1,585,732.00
68,131.332 LINK
0.2721%
44
Tokpie
LINK-USDT$22.98
0.0071826 Eth
$1,569,263.00
68,281.220 LINK
0.2727%
45
Bitstamp
LINK-USD$23.37
0.0072675 Eth
$1,490,911.00
63,795.941 LINK
0.2548%
46
BitStorage
LINK-USDT$23.35
0.0072623 Eth
$1,323,955.00
56,710.890 LINK
0.2265%
47
Bitstamp
LINK-EUR$23.38
0.0072721 Eth
$1,314,078.00
56,193.723 LINK
0.2244%
48
Binance
LINK-TRY$23.33
0.0073005 Eth
$1,233,479.00
52,480.470 LINK
0.2096%
49
tanX
LINK-USDC$23.39
0.0072750 Eth
$1,184,218.00
50,202.010 LINK
0.2005%
50
Bybit
LINK-USDC$23.34
0.0072583 Eth
$1,177,723.00
50,611.312 LINK
0.2021%
51
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$22.95
0.0071581 Eth
$1,169,187.00
50,723.638 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2026%
52
Kraken
LINK-USDT$23.32
0.0072505 Eth
$1,166,138.00
50,015.908 LINK
0.1998%
53
Kraken
LINK-EUR$23.34
0.0072570 Eth
$1,071,622.00
45,920.964 LINK
0.1834%
54
EarnBIT
LINK-USDT$23.12
0.0072266 Eth
$1,049,414.00
44,848.010 LINK
0.1791%
55
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.05
0.0071886 Eth
$1,038,764.00
44,280.698 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1768%
56
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$22.88
0.0071343 Eth
$1,030,330.00
44,622.530 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1782%
57
BigONE
LINK-USDT$23.08
0.0072212 Eth
$1,021,265.00
44,241.260 LINK
0.1767%
58
Gemini
LINK-USD$23.37
0.0072672 Eth
$934,453.00
39,986.798 LINK
0.1597%
59
Trubit
LINK-USDT$23.01
0.0072005 Eth
$906,592.00
38,570.210 LINK
0.1540%
60
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$22.90
0.0071555 Eth
$898,313.00
924,935.037 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
3.6939%
61
Binance
LINK-EUR$23.28
0.0072758 Eth
$895,714.00
38,448.590 LINK
0.1536%
62
LATOKEN
LINK-BTC$23.33
0.0072774 Eth
$884,431.00
37,907.362 LINK
0.1514%
63
Nonkyc.io
LINK-USDT$23.09
0.0072163 Eth
$825,111.00
35,016.105 LINK
0.1398%
64
QMall
LINK-USDC$23.18
0.0072306 Eth
$733,478.00
31,437.659 LINK
0.1256%
65
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.24
0.0072638 Eth
$703,091.00
30,435.601 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1216%
66
Azbit
LINK-ETH$23.15
0.0072226 Eth
$687,676.00
29,772.612 LINK
0.1189%
67
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$22.71
0.0070833 Eth
$662,713.00
49,275.453 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1968%
68
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.02
0.0071766 Eth
$660,663.00
675,637.268 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.6983%
69
GMO Japan
LINK-JPY$23.32
0.0072531 Eth
$638,027.00
27,363.900 LINK
0.1093%
70
itBit
LINK-USD$22.96
0.0071618 Eth
$577,610.00
25,157.231 LINK
0.1005%
71
OKX
LINK-USDC$23.34
0.0072589 Eth
$506,438.00
21,848.669 LINK
0.0873%
72
Coinbase Exchange
LINK-BTC$23.47
0.0073022 Eth
$494,402.00
21,061.030 LINK
0.0841%
73
Slex
LINK-BTC$23.16
0.0072361 Eth
$488,428.00
20,710.300 LINK
0.0827%
74
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$22.93
0.0071661 Eth
$403,955.00
17,697.207 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0707%
75
PointPay
LINK-BTC$23.19
0.0072358 Eth
$365,755.00
15,505.573 LINK
0.0619%
76
BitDelta
LINK-USDT$23.37
0.0072660 Eth
$347,744.00
14,784.000 LINK
0.0590%
77
bitcastle
LINK-USDT$23.03
0.0072052 Eth
$332,264.00
14,220.220 LINK
0.0568%
78
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.41
0.0073007 Eth
$322,417.00
13,643.095 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0545%
79
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.09
0.0071990 Eth
$318,197.00
13,779.343 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0550%
80
Slex
LINK-ETH$23.04
0.0071967 Eth
$306,515.00
13,275.910 LINK
0.0530%
81
BitMart
LINK-BTC$23.15
0.0072004 Eth
$296,336.00
12,802.440 LINK
0.0511%
82
Dex-Trade
LINK-BTC$23.15
0.0072362 Eth
$283,841.00
12,258.800 LINK
0.0490%
83
BitStorage
LINK-ETH$23.10
0.0072189 Eth
$241,498.00
10,455.090 LINK
0.0418%
84
BYDFi
LINK-USDC$23.07
0.0071936 Eth
$226,035.00
9,797.460 LINK
0.0391%
85
XT.COM
LINK-BTC$23.13
0.0072305 Eth
$220,261.00
9,387.710 LINK
0.0375%
86
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$22.70
0.0071215 Eth
$217,056.00
9,217.375 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0368%
87
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.04
0.0071851 Eth
$211,415.00
9,007.833 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0360%
88
Bitkub
LINK-THB$23.25
0.0072521 Eth
$209,832.00
9,025.911 LINK
0.0360%
89
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$22.91
0.0071438 Eth
$203,588.00
8,806.337 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0352%
90
KuCoin
LINK-USDC$23.42
0.0072845 Eth
$183,278.00
7,824.145 LINK
0.0312%
91
Bitcointry
LINK-USDT$23.09
0.0072255 Eth
$177,029.00
7,603.651 LINK
0.0304%
92
Kraken
LINK-GBP$23.22
0.0072220 Eth
$169,955.00
7,318.212 LINK
0.0292%
93
Mercado Bitcoin
LINK-BRL$23.22
0.0072439 Eth
$153,678.00
6,617.219 LINK
0.0264%
94
Binance US
LINK-USDT$23.12
0.0072331 Eth
$147,342.00
6,371.736 LINK
0.0254%
95
Bitso
LINK-USD$23.01
0.0071792 Eth
$145,437.00
6,320.606 LINK
0.0252%
96
KuCoin
LINK-BTC$23.43
0.0072865 Eth
$141,603.00
6,043.438 LINK
0.0241%
97
Kraken
LINK-ETH$23.13
0.0071935 Eth
$126,583.00
5,472.158 LINK
0.0219%
98
BitMart
LINK-ETH$23.17
0.0072090 Eth
$102,641.00
4,429.060 LINK
0.0177%
99
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$22.90
0.0071426 Eth
$87,607.00
3,770.511 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0151%
100
Coins.ph
LINK-PHP$23.12
0.0072347 Eth
$76,717.00
3,354.788 LINK
0.0134%

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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