ETH Price: $3,602.81 (+4.54%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,303 (0.00%)

Market

Price

$23.34 @ 0.006478 ETH (+5.77%)

Onchain Market Cap

$23,340,000,000.00

Circulating Supply Market Cap

$14,723,503,647.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
9.317511738719627189 LINK

Value
$217.47 ( ~0.0603611643492582 Eth) [0.0000%]
0x919aB6e1E2C4aA6BE26370f507914F07fb9Cc54D
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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 21118.18% |ETH 0.0003846 1584.35%

Market

Volume (24H):$1,230,338,303.00
Market Capitalization:$14,723,503,647.00
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$23.30
0.0064667 Eth
$48,122,400.00
2,065,427.710 LINK
9.5683%
2
Upbit
LINK-KRW$23.40
0.0064953 Eth
$35,661,983.00
1,524,227.643 LINK
7.0611%
3
Bitget
LINK-USDT$23.31
0.0064724 Eth
$31,872,078.00
1,394,709.561 LINK
6.4611%
4
P2B
LINK-USDT$23.30
0.0064677 Eth
$30,906,749.00
1,326,400.180 LINK
6.1447%
5
Bybit
LINK-USDT$23.31
0.0064716 Eth
$26,829,573.00
1,174,937.119 LINK
5.4430%
6
CoinW
LINK-USDT$23.33
0.0064768 Eth
$26,608,638.00
1,140,332.130 LINK
5.2827%
7
OKX
LINK-USDT$23.31
0.0064707 Eth
$22,135,211.00
970,006.036 LINK
4.4936%
8
Slex
LINK-USDT$23.31
0.0064627 Eth
$21,961,234.00
965,178.150 LINK
4.4713%
9
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.33
0.0064692 Eth
$21,573,473.00
921,024.867 0X514910771AF9CA656AF840DFF83E8264ECF986CA
4.2667%
10
DigiFinex
LINK-USDT$23.32
0.0064746 Eth
$18,851,008.00
808,286.600 LINK
3.7445%
11
FameEX
LINK-USDT$23.32
0.0064648 Eth
$14,324,770.00
630,026.284 LINK
2.9187%
12
XT.COM
LINK-USDT$23.45
0.0064910 Eth
$14,261,786.00
627,595.740 LINK
2.9074%
13
Coinstore
LINK-USDT$23.36
0.0064767 Eth
$12,775,281.00
561,892.060 LINK
2.6030%
14
Bitunix
LINK-USDT$23.30
0.0064580 Eth
$11,315,800.00
485,587.650 LINK
2.2495%
15
Binance
LINK-FDUSD$23.29
0.0064560 Eth
$9,584,369.00
419,291.880 LINK
1.9424%
16
BYDFi
LINK-USDT$23.29
0.0064563 Eth
$9,461,392.00
406,221.150 LINK
1.8819%
17
HTX
LINK-USDT$23.34
0.0064779 Eth
$9,400,044.00
412,404.443 LINK
1.9105%
18
Biconomy.com
LINK-USDT$23.30
0.0064656 Eth
$8,171,403.00
358,544.060 LINK
1.6610%
19
Kraken
LINK-USD$23.33
0.0064774 Eth
$8,143,749.00
349,011.593 LINK
1.6168%
20
Bithumb
LINK-KRW$23.40
0.0064957 Eth
$7,757,665.00
331,473.503 LINK
1.5356%
21
LBank
LINK-USDT$23.31
0.0064703 Eth
$7,267,168.00
311,736.550 LINK
1.4441%
22
LATOKEN
LINK-USDT$23.40
0.0064784 Eth
$6,928,880.00
296,140.426 LINK
1.3719%
23
Binance
LINK-USDC$23.31
0.0064645 Eth
$6,328,827.00
276,230.150 LINK
1.2797%
24
QMall
LINK-USDT$23.30
0.0064594 Eth
$5,882,278.00
258,694.432 LINK
1.1984%
25
Dex-Trade
LINK-USDT$23.39
0.0064770 Eth
$4,734,565.00
202,447.690 LINK
0.9379%
26
Hotcoin
LINK-USDT$23.30
0.0064677 Eth
$3,668,790.00
157,450.530 LINK
0.7294%
27
KuCoin
LINK-USDT$23.31
0.0064719 Eth
$3,578,223.00
153,490.096 LINK
0.7111%
28
FMCPAY
LINK-USDT$23.28
0.0064628 Eth
$3,563,162.00
155,917.408 LINK
0.7223%
29
CoinEx
LINK-USDT$23.27
0.0064529 Eth
$3,215,090.00
139,065.720 LINK
0.6442%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.28
0.0064620 Eth
$2,899,643.00
124,069.950 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5748%
31
PointPay
LINK-USDT$23.32
0.0064668 Eth
$2,225,410.00
97,730.649 LINK
0.4527%
32
Bitvavo
LINK-EUR$23.32
0.0064639 Eth
$2,203,387.00
94,490.443 LINK
0.4377%
33
Dcoin
LINK-USDT$23.30
0.0064597 Eth
$2,157,989.00
92,618.000 LINK
0.4291%
34
EXMO
LINK-USDT$23.33
0.0064775 Eth
$2,045,030.00
87,646.145 LINK
0.4060%
35
ProBit Global
LINK-USDT$23.32
0.0064720 Eth
$1,632,586.00
70,014.007 LINK
0.3243%
36
FMCPAY
LINK-ETH$23.33
0.0064679 Eth
$1,557,859.00
66,659.200 LINK
0.3088%
37
Phemex
LINK-USDT$23.29
0.0064566 Eth
$1,535,315.00
65,912.240 LINK
0.3053%
38
FMCPAY
LINK-BTC$23.31
0.0064604 Eth
$1,499,726.00
65,378.000 LINK
0.3029%
39
Kraken
LINK-EUR$23.34
0.0064794 Eth
$1,487,599.00
63,734.094 LINK
0.2953%
40
Coinbase Exchange
LINK-EUR$23.33
0.0064744 Eth
$1,485,682.00
63,689.700 LINK
0.2950%
41
tanX
LINK-USDC$23.32
0.0064670 Eth
$1,297,908.00
57,136.370 LINK
0.2647%
42
Bybit
LINK-USDC$23.29
0.0064662 Eth
$1,194,680.00
51,984.490 LINK
0.2408%
43
BitStorage
LINK-USDT$23.34
0.0064788 Eth
$1,180,056.00
50,556.750 LINK
0.2342%
44
Kraken
LINK-USDT$23.32
0.0064744 Eth
$1,130,093.00
48,454.174 LINK
0.2245%
45
WhiteBIT
LINK-BTC$23.40
0.0064815 Eth
$1,077,999.00
46,062.570 LINK
0.2134%
46
EarnBIT
LINK-USDT$23.30
0.0064576 Eth
$1,054,724.00
46,226.046 LINK
0.2141%
47
Bitbank
LINK-JPY$23.28
0.0064553 Eth
$981,474.00
42,167.776 LINK
0.1953%
48
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.27
0.0064600 Eth
$958,502.00
41,043.628 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1901%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.32
0.0064723 Eth
$878,225.00
37,551.983 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1740%
50
Gemini
LINK-USD$23.31
0.0064711 Eth
$829,345.00
35,579.824 LINK
0.1648%
51
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.28
0.0064621 Eth
$780,915.00
33,387.097 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1547%
52
Binance
LINK-EUR$23.26
0.0064522 Eth
$765,942.00
33,687.170 LINK
0.1561%
53
Koinpark
LINK-USDT$23.39
0.0064782 Eth
$754,497.00
32,258.930 LINK
0.1494%
54
WhiteBIT
LINK-TRY$23.21
0.0064425 Eth
$749,702.00
32,297.360 LINK
0.1496%
55
Coinbase Exchange
LINK-GBP$23.29
0.0064655 Eth
$741,570.00
31,836.450 LINK
0.1475%
56
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.29
0.0064580 Eth
$709,459.00
47,438.894 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2198%
57
itBit
LINK-USD$23.28
0.0064614 Eth
$663,006.00
28,479.620 LINK
0.1319%
58
Binance
LINK-TRY$23.22
0.0064353 Eth
$620,735.00
27,106.570 LINK
0.1256%
59
ProBit Global
LINK-BTC$23.31
0.0064606 Eth
$608,968.00
26,127.108 LINK
0.1210%
60
BigONE
LINK-USDT$23.31
0.0064627 Eth
$568,466.00
24,390.580 LINK
0.1130%
61
Coinbase Exchange
LINK-ETH$23.30
0.0064582 Eth
$511,238.00
21,944.290 LINK
0.1017%
62
GMO Japan
LINK-JPY$23.37
0.0064828 Eth
$497,345.00
21,279.300 LINK
0.0986%
63
Bitbegin
LINK-USDT$23.31
0.0064696 Eth
$477,927.00
21,015.048 LINK
0.0974%
64
Coinbase Exchange
LINK-BTC$23.31
0.0064721 Eth
$452,709.00
19,417.450 LINK
0.0900%
65
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.32
0.0064733 Eth
$447,277.00
19,085.442 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0884%
66
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.27
0.0064579 Eth
$443,925.00
429,179.067 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.9882%
67
HashKey Exchange
LINK-USD$23.37
0.0064781 Eth
$438,044.00
19,523.558 LINK
0.0904%
68
Slex
LINK-ETH$23.34
0.0064767 Eth
$431,167.00
18,488.540 LINK
0.0856%
69
Coinbase Exchange
LINK-USDT$23.30
0.0064594 Eth
$420,745.00
18,055.170 LINK
0.0836%
70
Bitkub
LINK-THB$23.20
0.0064385 Eth
$376,470.00
16,229.925 LINK
0.0752%
71
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.27
0.0064602 Eth
$305,972.00
299,598.457 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.3879%
72
BitMart
LINK-BTC$23.30
0.0064687 Eth
$284,230.00
12,196.300 LINK
0.0565%
73
OKX
LINK-USDC$23.34
0.0064789 Eth
$269,619.00
11,780.693 LINK
0.0546%
74
LATOKEN
LINK-BTC$23.33
0.0064661 Eth
$265,192.00
11,366.090 LINK
0.0527%
75
KuCoin
LINK-USDC$23.29
0.0064666 Eth
$257,859.00
11,070.062 LINK
0.0513%
76
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.31
0.0064701 Eth
$257,241.00
11,290.712 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0523%
77
BTCMarkets
LINK-AUD$23.30
0.0064579 Eth
$248,542.00
10,669.276 LINK
0.0494%
78
BitDelta
LINK-USDT$23.30
0.0064673 Eth
$231,818.00
10,180.000 LINK
0.0472%
79
Bitci TR
LINK-TRY$23.34
0.0064690 Eth
$230,508.00
10,138.090 LINK
0.0470%
80
Coinone
LINK-KRW$23.42
0.0065029 Eth
$216,833.00
9,256.852 LINK
0.0429%
81
PointPay
LINK-BTC$23.30
0.0064675 Eth
$201,765.00
8,738.429 LINK
0.0405%
82
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.23
0.0064485 Eth
$189,443.00
8,110.430 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0376%
83
BitStorage
LINK-ETH$23.33
0.0064660 Eth
$175,310.00
7,515.110 LINK
0.0348%
84
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.32
0.0064648 Eth
$168,932.00
7,226.006 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0335%
85
Binance US
LINK-USDT$23.46
0.0065083 Eth
$146,256.00
6,234.640 LINK
0.0289%
86
Bitso
LINK-USD$23.41
0.0064848 Eth
$134,897.00
5,761.194 LINK
0.0267%
87
Hotcoin
LINK-BTC$23.31
0.0064703 Eth
$132,582.00
5,687.660 LINK
0.0263%
88
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.33
0.0064677 Eth
$132,328.00
5,658.793 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0262%
89
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.32
0.0064675 Eth
$125,893.00
5,518.431 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0256%
90
EXMO
LINK-BTC$23.33
0.0064761 Eth
$125,517.00
5,380.654 LINK
0.0249%
91
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.36
0.0064781 Eth
$97,616.00
4,350.329 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0202%
92
Kanga
LINK-PLN$23.46
0.0065025 Eth
$96,634.00
0.000 LINK
0.0000%
93
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.27
0.0064600 Eth
$94,388.00
4,139.336 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0192%
94
BitMart
LINK-ETH$23.30
0.0064679 Eth
$88,012.00
3,777.420 LINK
0.0175%
95
Mercado Bitcoin
LINK-BRL$23.26
0.0064563 Eth
$83,360.00
3,584.427 LINK
0.0166%
96
Kraken
LINK-GBP$23.32
0.0064730 Eth
$78,678.00
3,374.145 LINK
0.0156%
97
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.45
0.0065009 Eth
$63,046.00
2,694.115 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0125%
98
Independent Reserve
LINK-AUD$23.38
0.0064883 Eth
$59,471.00
2,544.010 LINK
0.0118%
99
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.34
0.0064791 Eth
$54,242.00
2,324.746 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0108%
100
Coins.ph
LINK-PHP$23.36
0.0064778 Eth
$53,555.00
2,339.611 LINK
0.0108%

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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