ETH Price: $2,200.88 (-0.38%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

740,602 ( -0.012%)

Market

Price

$14.52 @ 0.006597 ETH (-1.08%)

Onchain Market Cap

$14,520,000,000.00

Circulating Supply Market Cap

$9,268,394,702.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xac366ae96f1e67b7314ae7ea1d4af886db67213d
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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 13100% |ETH 0.0003846 1615.29%

Market

Volume (24H):$372,843,457.00
Market Capitalization:$9,268,394,702.00
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$14.54
0.0066216 Eth
$39,131,004.00
2,677,077.930 LINK
16.3847%
2
MEXC
LINK-USDT$14.59
0.0066400 Eth
$22,014,099.00
1,508,648.730 LINK
9.2335%
3
Coinbase Exchange
LINK-USD$14.60
0.0066430 Eth
$17,115,852.00
1,171,997.540 LINK
7.1731%
4
WhiteBIT
LINK-USDT$14.49
0.0065952 Eth
$16,450,870.00
1,135,611.820 LINK
6.9504%
5
HTX
LINK-USDT$14.59
0.0066383 Eth
$13,201,392.00
900,436.742 LINK
5.5110%
6
Gate.io
LINK-USDT$14.60
0.0066380 Eth
$10,157,232.00
693,304.140 LINK
4.2433%
7
OKX
LINK-USDT$14.60
0.0066389 Eth
$9,541,100.00
651,164.432 LINK
3.9854%
8
Slex
LINK-USDT$14.51
0.0066083 Eth
$8,262,239.00
564,345.260 LINK
3.4540%
9
P2B
LINK-USDT$14.53
0.0066179 Eth
$8,161,991.00
561,607.060 LINK
3.4372%
10
Hotcoin
LINK-USDT$14.60
0.0066445 Eth
$6,901,072.00
472,613.830 LINK
2.8926%
11
Ourbit
LINK-USDT$14.58
0.0066336 Eth
$5,847,240.00
399,821.970 LINK
2.4471%
12
DigiFinex
LINK-USDT$14.59
0.0066357 Eth
$5,570,809.00
381,783.010 LINK
2.3367%
13
Binance
LINK-FDUSD$14.49
0.0065945 Eth
$4,117,688.00
281,021.640 LINK
1.7200%
14
Bybit
LINK-USDT$14.59
0.0066358 Eth
$4,111,564.00
279,925.254 LINK
1.7132%
15
XT.COM
LINK-USDT$14.48
0.0065935 Eth
$3,908,916.00
267,312.610 LINK
1.6361%
16
Binance
LINK-USDC$14.53
0.0066157 Eth
$3,739,765.00
255,562.850 LINK
1.5641%
17
KuCoin
LINK-USDT$14.60
0.0066383 Eth
$3,659,188.00
250,675.846 LINK
1.5342%
18
Coinstore
LINK-USDT$14.57
0.0066243 Eth
$3,489,915.00
238,739.250 LINK
1.4612%
19
MEXC
LINK-EUR$14.55
0.0066250 Eth
$3,456,113.00
237,527.670 LINK
1.4538%
20
MEXC
LINK-USDC$14.51
0.0066074 Eth
$3,347,193.00
230,736.790 LINK
1.4122%
21
CoinW
LINK-USDT$14.57
0.0066431 Eth
$2,663,136.00
182,737.390 LINK
1.1184%
22
Kraken
LINK-USD$14.59
0.0066353 Eth
$2,654,693.00
181,953.759 LINK
1.1136%
23
Bitunix
LINK-USDT$14.55
0.0066235 Eth
$2,347,037.00
161,276.650 LINK
0.9871%
24
Azbit
LINK-USDT$14.53
0.0066124 Eth
$2,330,916.00
159,320.451 LINK
0.9751%
25
BYDFi
LINK-USDT$14.62
0.0066418 Eth
$2,182,407.00
149,293.990 LINK
0.9137%
26
Binance
LINK-BTC$14.51
0.0066006 Eth
$1,730,787.00
118,007.860 LINK
0.7223%
27
QMall
LINK-USDT$14.51
0.0066083 Eth
$1,589,699.00
108,730.662 LINK
0.6655%
28
FMCPAY
LINK-USDT$14.51
0.0066070 Eth
$1,580,822.00
108,052.514 LINK
0.6613%
29
Biconomy.com
LINK-USDT$14.60
0.0066380 Eth
$1,501,945.00
102,507.400 LINK
0.6274%
30
Dex-Trade
LINK-USDT$14.56
0.0066206 Eth
$1,203,154.00
82,612.080 LINK
0.5056%
31
Hibt
LINK-USDT$14.49
0.0065990 Eth
$1,179,563.00
80,510.562 LINK
0.4928%
32
Bitvavo
LINK-EUR$14.53
0.0066126 Eth
$1,130,103.00
77,790.475 LINK
0.4761%
33
Tokpie
LINK-USDT$14.53
0.0066180 Eth
$1,050,357.00
72,272.390 LINK
0.4423%
34
Tapbit
LINK-USDT$14.59
0.0066400 Eth
$1,022,700.00
69,871.800 LINK
0.4276%
35
CoinEx
LINK-USDT$14.53
0.0066177 Eth
$1,010,717.00
69,171.704 LINK
0.4234%
36
FMCPAY
LINK-ETH$14.53
0.0066103 Eth
$971,477.00
67,081.440 LINK
0.4106%
37
Crypto.com Exchange
LINK-USDT$14.61
0.0066439 Eth
$947,320.00
64,855.180 LINK
0.3969%
38
Coinbase Exchange
LINK-EUR$14.52
0.0066115 Eth
$930,738.00
64,103.840 LINK
0.3923%
39
FMCPAY
LINK-BTC$14.56
0.0066207 Eth
$866,364.00
58,927.000 LINK
0.3607%
40
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$14.48
0.0065840 Eth
$826,023.00
57,129.481 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3497%
41
Trubit
LINK-USDT$14.52
0.0066135 Eth
$747,146.00
51,092.830 LINK
0.3127%
42
BigONE
LINK-USDT$14.57
0.0066474 Eth
$698,836.00
47,954.850 LINK
0.2935%
43
Binance
LINK-ETH$14.56
0.0066298 Eth
$659,053.00
45,401.710 LINK
0.2779%
44
PointPay
LINK-USDT$14.50
0.0066015 Eth
$532,137.00
36,420.486 LINK
0.2229%
45
WhiteBIT
LINK-BTC$14.52
0.0066071 Eth
$519,806.00
35,787.200 LINK
0.2190%
46
tanX
LINK-USDC$14.60
0.0066381 Eth
$430,978.00
29,411.270 LINK
0.1800%
47
EarnBIT
LINK-USDT$14.63
0.0066455 Eth
$417,590.00
28,434.027 LINK
0.1740%
48
Bitbank
LINK-JPY$14.50
0.0065995 Eth
$399,390.00
27,538.645 LINK
0.1685%
49
Coinbase Exchange
LINK-GBP$14.56
0.0066299 Eth
$394,550.00
27,099.110 LINK
0.1659%
50
Bitstamp
LINK-USD$14.57
0.0066272 Eth
$378,373.00
25,969.297 LINK
0.1589%
51
Gemini
LINK-USD$14.60
0.0066388 Eth
$377,186.00
25,842.597 LINK
0.1582%
52
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.49
0.0065934 Eth
$374,675.00
25,810.709 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1580%
53
EXMO
LINK-USDT$14.61
0.0066432 Eth
$367,721.00
25,173.904 LINK
0.1541%
54
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$14.55
0.0066194 Eth
$353,445.00
24,117.509 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1476%
55
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$14.51
0.0065968 Eth
$352,874.00
24,388.676 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1493%
56
Binance
LINK-EUR$14.56
0.0066317 Eth
$339,050.00
23,049.490 LINK
0.1411%
57
QMall
LINK-USDC$14.52
0.0066098 Eth
$307,675.00
21,027.647 LINK
0.1287%
58
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$14.47
0.0065830 Eth
$304,054.00
21,103.362 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1292%
59
BitMart
LINK-BTC$14.54
0.0066120 Eth
$299,184.00
20,581.420 LINK
0.1260%
60
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$14.50
0.0065942 Eth
$281,798.00
19,217.202 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1176%
61
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.54
0.0066116 Eth
$275,576.00
19,053.343 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1166%
62
OKX
LINK-USDC$14.60
0.0066411 Eth
$265,110.00
18,175.420 LINK
0.1112%
63
Bybit
LINK-USDC$14.55
0.0066177 Eth
$263,048.00
18,059.525 LINK
0.1105%
64
WhiteBIT
LINK-TRY$14.63
0.0066617 Eth
$234,366.00
16,018.330 LINK
0.0980%
65
Slex
LINK-ETH$14.53
0.0066162 Eth
$232,627.00
16,042.790 LINK
0.0982%
66
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$14.50
0.0065944 Eth
$217,180.00
14,520.529 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0889%
67
BYDFi
LINK-USDC$14.55
0.0066177 Eth
$207,601.00
14,266.330 LINK
0.0873%
68
Coinbase Exchange
LINK-USDT$14.52
0.0066081 Eth
$202,873.00
13,970.042 LINK
0.0855%
69
Hotcoin
LINK-BTC$14.51
0.0066051 Eth
$198,027.00
13,646.320 LINK
0.0835%
70
CoinTR
LINK-TRY$14.60
0.0066483 Eth
$185,081.00
12,583.190 LINK
0.0770%
71
BitDelta
LINK-USDT$14.53
0.0066124 Eth
$180,305.00
12,310.000 LINK
0.0753%
72
BitStorage
LINK-ETH$14.56
0.0066332 Eth
$163,008.00
11,199.380 LINK
0.0685%
73
Binance
LINK-JPY$14.55
0.0066242 Eth
$162,726.00
11,059.400 LINK
0.0677%
74
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$14.50
0.0065942 Eth
$159,867.00
161,750.194 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.9900%
75
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$14.58
0.0066348 Eth
$157,462.00
21,258.875 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1301%
76
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.55
0.0066202 Eth
$143,102.00
9,871.868 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0604%
77
Bitci TR
LINK-TRY$14.53
0.0066200 Eth
$134,504.00
9,150.357 LINK
0.0560%
78
Binance
LINK-TRY$14.58
0.0066396 Eth
$133,197.00
9,061.150 LINK
0.0555%
79
Coinbase Exchange
LINK-BTC$14.51
0.0066077 Eth
$122,454.00
8,437.440 LINK
0.0516%
80
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$14.56
0.0066239 Eth
$118,764.00
8,121.956 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0497%
81
GMO Japan
LINK-JPY$14.58
0.0066386 Eth
$96,786.00
6,638.200 LINK
0.0406%
82
BitMart
LINK-ETH$14.53
0.0066136 Eth
$93,070.00
6,403.620 LINK
0.0392%
83
bitcastle
LINK-USDT$14.50
0.0066021 Eth
$89,711.00
6,132.590 LINK
0.0375%
84
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.59
0.0066394 Eth
$73,376.00
5,040.090 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0308%
85
Binance US
LINK-USDT$14.53
0.0066098 Eth
$61,989.00
4,265.155 LINK
0.0261%
86
Bitkub
LINK-THB$14.46
0.0065851 Eth
$52,960.00
3,661.812 LINK
0.0224%
87
Hotcoin
LINK-ETH$14.56
0.0066263 Eth
$52,819.00
3,627.200 LINK
0.0222%
88
Bitso
LINK-USD$14.51
0.0066080 Eth
$49,280.00
3,395.911 LINK
0.0208%
89
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$14.48
0.0065840 Eth
$46,340.00
46,580.500 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.2851%
90
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$14.52
0.0066067 Eth
$42,825.00
2,951.552 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0181%
91
Binance
LINK-BNB$14.55
0.0066190 Eth
$39,533.00
2,655.531 LINK
0.0163%
92
Binance
LINK-BRL$14.63
0.0066556 Eth
$35,819.00
2,437.810 LINK
0.0149%
93
EXMO
LINK-BTC$14.58
0.0066312 Eth
$34,583.00
2,371.835 LINK
0.0145%
94
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$14.59
0.0066394 Eth
$31,760.00
31,930.068 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.1954%
95
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$14.57
0.0066255 Eth
$31,438.00
2,146.134 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0131%
96
Bittime
LINK-USDT$14.55
0.0066244 Eth
$31,191.00
2,130.240 LINK
0.0130%
97
Bittime
LINK-IDR$14.60
0.0066457 Eth
$30,892.00
2,099.260 LINK
0.0128%
98
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$14.56
0.0066244 Eth
$21,769.00
1,487.357 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0091%
99
Dex-Trade
LINK-ETH$14.59
0.0066303 Eth
$21,709.00
1,487.550 LINK
0.0091%
100
Bitexen
LINK-TRY$14.48
0.0065966 Eth
$18,932.44
1,307.812 LINK
0.0080%

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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