ETH Price: $3,892.91 (-0.98%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

725,174 ( -0.010%)

Market

Price

$29.70 @ 0.007629 ETH (+1.23%)

Onchain Market Cap

$29,700,000,000.00

Circulating Supply Market Cap

$18,591,755,424.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
aijia123456789.eth
Balance
0.003808841039682397 LINK

Value
$0.11 ( ~2.82564877748751E-05 Eth) [0.0000%]
0x603F9f25ea89F465E36E2E9a9eB13289F0e7DaE8
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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 26900% |ETH 0.0003846 1883.62%

Market

Volume (24H):$2,940,430,060.00
Market Capitalization:$18,591,755,424.00
Circulating Supply:626,849,971.00 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$29.73
0.0076466 Eth
$284,371,596.00
9,596,043.160 LINK
20.5205%
2
Coinbase Exchange
LINK-USD$29.65
0.0076214 Eth
$117,274,003.00
3,954,744.810 LINK
8.4569%
3
WhiteBIT
LINK-USDT$29.68
0.0076284 Eth
$111,132,759.00
3,744,919.770 LINK
8.0082%
4
Bitget
LINK-USDT$29.62
0.0076127 Eth
$87,535,148.00
2,959,029.582 LINK
6.3277%
5
Bybit
LINK-USDT$29.64
0.0076175 Eth
$75,087,567.00
2,538,807.493 LINK
5.4291%
6
Gate.io
LINK-USDT$29.60
0.0076067 Eth
$60,784,145.00
2,047,816.300 LINK
4.3791%
7
OKX
LINK-USDT$29.65
0.0076193 Eth
$58,761,735.00
1,983,466.237 LINK
4.2415%
8
DigiFinex
LINK-USDT$29.62
0.0076134 Eth
$38,466,637.00
1,298,501.360 LINK
2.7768%
9
Deepcoin
LINK-USDT$29.72
0.0076402 Eth
$36,746,238.00
1,256,390.371 LINK
2.6867%
10
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$29.54
0.0075924 Eth
$32,030,464.00
1,083,393.865 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.3168%
11
Slex
LINK-USDT$29.71
0.0076377 Eth
$29,870,518.00
1,011,274.830 LINK
2.1625%
12
Bitunix
LINK-USDT$29.72
0.0076390 Eth
$29,039,193.00
977,047.950 LINK
2.0893%
13
XT.COM
LINK-USDT$29.78
0.0076554 Eth
$28,478,121.00
960,668.350 LINK
2.0543%
14
Bithumb
LINK-KRW$29.61
0.0076130 Eth
$27,856,597.00
940,643.442 LINK
2.0115%
15
CoinW
LINK-USDT$29.70
0.0076376 Eth
$22,591,732.00
760,713.370 LINK
1.6267%
16
Binance
LINK-BTC$29.64
0.0076313 Eth
$21,296,655.00
716,806.140 LINK
1.5328%
17
Binance
LINK-FDUSD$29.63
0.0076281 Eth
$19,669,797.00
664,881.910 LINK
1.4218%
18
HTX
LINK-USDT$29.67
0.0076263 Eth
$17,823,355.00
603,315.166 LINK
1.2901%
19
Biconomy.com
LINK-USDT$29.67
0.0076261 Eth
$17,104,170.00
577,490.380 LINK
1.2349%
20
BTSE
LINK-USDT$29.72
0.0076404 Eth
$17,012,591.00
572,409.830 LINK
1.2241%
21
BYDFi
LINK-USDT$29.65
0.0076219 Eth
$15,995,621.00
539,473.800 LINK
1.1536%
22
Kraken
LINK-USD$29.65
0.0076201 Eth
$15,023,008.00
506,670.842 LINK
1.0835%
23
Azbit
LINK-USDT$29.72
0.0076395 Eth
$14,290,871.00
484,157.640 LINK
1.0353%
24
LATOKEN
LINK-USDT$29.68
0.0076271 Eth
$13,334,908.00
449,329.485 LINK
0.9609%
25
KuCoin
LINK-USDT$29.63
0.0076157 Eth
$12,826,670.00
432,952.834 LINK
0.9258%
26
Dex-Trade
LINK-USDT$29.66
0.0076249 Eth
$9,435,445.00
318,111.743 LINK
0.6803%
27
Coinbase Exchange
LINK-EUR$29.71
0.0076374 Eth
$9,255,666.00
311,532.180 LINK
0.6662%
28
Binance
LINK-USDC$29.67
0.0076280 Eth
$8,439,810.00
285,320.900 LINK
0.6101%
29
Bitvavo
LINK-EUR$29.69
0.0076316 Eth
$7,276,367.00
245,093.788 LINK
0.5241%
30
LBank
LINK-USDT$29.74
0.0076463 Eth
$6,812,192.00
229,045.890 LINK
0.4898%
31
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$29.64
0.0076179 Eth
$6,333,238.00
214,421.012 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4585%
32
CoinEx
LINK-USDT$29.74
0.0076452 Eth
$6,203,186.00
209,190.299 LINK
0.4473%
33
Binance
LINK-TRY$29.94
0.0076967 Eth
$5,497,309.00
183,785.400 LINK
0.3930%
34
PointPay
LINK-USDT$29.68
0.0076297 Eth
$4,470,365.00
150,806.822 LINK
0.3225%
35
Dcoin
LINK-USDT$29.63
0.0076172 Eth
$4,128,785.00
139,341.000 LINK
0.2980%
36
EXMO
LINK-USDT$29.61
0.0076098 Eth
$4,024,283.00
135,913.341 LINK
0.2906%
37
WhiteBIT
LINK-TRY$29.81
0.0076735 Eth
$3,982,338.00
133,583.020 LINK
0.2857%
38
WhiteBIT
LINK-BTC$29.61
0.0076111 Eth
$3,981,044.00
134,463.110 LINK
0.2875%
39
Hotcoin
LINK-USDT$29.62
0.0076128 Eth
$3,828,652.00
129,256.044 LINK
0.2764%
40
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$29.67
0.0076253 Eth
$3,656,029.00
123,863.665 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2649%
41
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$29.80
0.0076615 Eth
$3,649,568.00
122,926.353 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2629%
42
Bitbank
LINK-JPY$29.70
0.0076361 Eth
$2,951,927.00
99,377.221 LINK
0.2125%
43
Phemex
LINK-USDT$29.75
0.0076488 Eth
$2,916,142.00
98,016.300 LINK
0.2096%
44
EarnBIT
LINK-USDT$29.68
0.0076308 Eth
$2,820,303.00
95,229.126 LINK
0.2036%
45
Bitstamp
LINK-EUR$29.62
0.0076115 Eth
$2,789,385.00
94,186.239 LINK
0.2014%
46
Tapbit
LINK-USDT$29.61
0.0076101 Eth
$2,622,243.00
88,477.830 LINK
0.1892%
47
Coinbase Exchange
LINK-USDT$29.65
0.0076219 Eth
$2,515,630.00
84,842.992 LINK
0.1814%
48
Bitstamp
LINK-USD$29.65
0.0076203 Eth
$2,295,353.00
77,414.958 LINK
0.1655%
49
BitStorage
LINK-USDT$29.75
0.0076487 Eth
$2,281,408.00
76,681.480 LINK
0.1640%
50
OKX
LINK-USDC$29.64
0.0076188 Eth
$2,146,693.00
72,418.864 LINK
0.1549%
51
Kraken
LINK-EUR$29.64
0.0076170 Eth
$2,089,300.00
70,493.242 LINK
0.1507%
52
Kraken
LINK-USDT$29.74
0.0076436 Eth
$2,027,176.00
68,159.247 LINK
0.1458%
53
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$29.66
0.0076257 Eth
$2,024,266.00
69,104.932 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1478%
54
Bybit
LINK-USDC$29.62
0.0076130 Eth
$2,022,772.00
68,399.337 LINK
0.1463%
55
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$29.69
0.0076311 Eth
$1,884,476.00
63,831.495 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1365%
56
tanX
LINK-USDC$29.66
0.0076236 Eth
$1,839,847.00
62,193.300 LINK
0.1330%
57
Binance
LINK-EUR$29.62
0.0076227 Eth
$1,758,734.00
59,159.760 LINK
0.1265%
58
Gemini
LINK-USD$29.73
0.0076408 Eth
$1,287,257.00
43,299.047 LINK
0.0926%
59
Kraken
LINK-XBT$29.73
0.0076401 Eth
$1,258,242.00
42,325.135 LINK
0.0905%
60
GMO Japan
LINK-JPY$29.73
0.0076416 Eth
$1,165,733.00
39,215.300 LINK
0.0839%
61
LATOKEN
LINK-BTC$29.70
0.0076338 Eth
$1,069,330.00
36,000.198 LINK
0.0770%
62
Bitkub
LINK-THB$29.64
0.0076189 Eth
$1,035,596.00
34,942.385 LINK
0.0747%
63
WhiteBIT
LINK-EUR$29.67
0.0076266 Eth
$1,030,231.00
34,726.380 LINK
0.0743%
64
Uniswap V3 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA$29.67
0.0076265 Eth
$986,121.00
2,633.241 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0056%
65
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$29.67
0.0076253 Eth
$963,003.00
959,765.387 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.0524%
66
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$29.69
0.0076306 Eth
$855,941.00
50,835.482 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1087%
67
Trubit
LINK-USDT$29.72
0.0076390 Eth
$798,802.00
27,109.660 LINK
0.0580%
68
Coinbase Exchange
LINK-GBP$29.72
0.0076389 Eth
$790,526.00
26,602.930 LINK
0.0569%
69
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$29.64
0.0076205 Eth
$783,201.00
26,500.258 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0567%
70
PointPay
LINK-BTC$29.66
0.0076264 Eth
$779,994.00
26,222.720 LINK
0.0561%
71
BitMart
LINK-BTC$29.70
0.0076324 Eth
$723,285.00
24,354.720 LINK
0.0521%
72
itBit
LINK-USD$29.71
0.0076376 Eth
$683,539.00
23,007.038 LINK
0.0492%
73
BigONE
LINK-USDT$29.77
0.0076538 Eth
$680,202.00
22,845.340 LINK
0.0489%
74
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$29.66
0.0076218 Eth
$638,604.00
21,575.397 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0461%
75
Coinbase Exchange
LINK-BTC$29.71
0.0076380 Eth
$619,309.00
20,843.360 LINK
0.0446%
76
XT.COM
LINK-ETH$29.70
0.0076444 Eth
$610,255.00
20,591.170 LINK
0.0440%
77
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$29.66
0.0076257 Eth
$577,078.00
19,775.305 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0423%
78
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$29.71
0.0076379 Eth
$555,001.00
18,720.506 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0400%
79
HashKey Exchange
LINK-USD$29.67
0.0076279 Eth
$554,078.00
18,738.365 LINK
0.0401%
80
BitStorage
LINK-ETH$29.69
0.0076333 Eth
$540,154.00
18,193.270 LINK
0.0389%
81
XT.COM
LINK-BTC$29.77
0.0076536 Eth
$537,531.00
18,101.430 LINK
0.0387%
82
Slex
LINK-ETH$29.64
0.0076180 Eth
$524,242.00
17,705.310 LINK
0.0379%
83
Coinone
LINK-KRW$29.64
0.0076166 Eth
$521,042.00
17,581.792 LINK
0.0376%
84
BitDelta
LINK-USDT$29.64
0.0076178 Eth
$520,569.00
17,588.000 LINK
0.0376%
85
WEEX
LINK-USDC$29.78
0.0076558 Eth
$500,739.00
16,815.441 LINK
0.0360%
86
Binance
LINK-BNB$29.65
0.0076320 Eth
$460,038.00
15,567.444 LINK
0.0333%
87
Bitso
LINK-USD$29.65
0.0076274 Eth
$443,058.00
14,942.127 LINK
0.0320%
88
Binance US
LINK-USDT$29.64
0.0076190 Eth
$417,997.00
14,103.215 LINK
0.0302%
89
Uniswap V2 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$29.69
0.0076319 Eth
$414,785.00
14,042.524 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0300%
90
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$29.61
0.0076112 Eth
$403,531.00
13,678.495 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0293%
91
EXMO
LINK-BTC$29.50
0.0075836 Eth
$361,674.00
12,260.108 LINK
0.0262%
92
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$29.62
0.0076130 Eth
$299,972.00
10,157.789 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0217%
93
Bitcointry
LINK-USDT$29.64
0.0076165 Eth
$295,881.00
10,015.397 LINK
0.0214%
94
BitStorage
LINK-BTC$29.69
0.0076298 Eth
$249,111.00
8,390.900 LINK
0.0179%
95
Coinbase Exchange
LINK-ETH$29.72
0.0076395 Eth
$216,029.00
7,269.410 LINK
0.0155%
96
Kraken
LINK-GBP$29.37
0.0075474 Eth
$154,293.00
5,253.902 LINK
0.0112%
97
Foxbit
LINK-BRL$29.91
0.0076901 Eth
$144,345.00
4,861.981 LINK
0.0104%
98
BYDFi
LINK-USDC$29.69
0.0076411 Eth
$115,518.00
3,891.200 LINK
0.0083%
99
Independent Reserve
LINK-AUD$29.45
0.0075719 Eth
$99,157.00
3,367.290 LINK
0.0072%
100
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$29.63
0.0076144 Eth
$97,335.00
3,287.688 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0070%

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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