ETH Price: $2,160.36 (+1.55%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

741,933 ( 0.051%)

Market

Price

$14.62 @ 0.006767 ETH (+0.07%)

Onchain Market Cap

$14,620,000,000.00

Circulating Supply Market Cap

$9,325,326,226.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0.000481847135800146 LINK

Value
$0.01 ( ~4.62886504159314E-06 Eth) [0.0000%]
0xd19b5f18fe33d70918fedb7f5ebe30b3ceed8d47
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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 13190.91% |ETH 0.0003846 1659.49%

Market

Volume (24H):$968,390,595.00
Market Capitalization:$9,325,326,226.00
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$14.63
0.0067486 Eth
$129,542,800.00
9,303,443.570 LINK
20.2841%
2
MEXC
LINK-USDT$14.59
0.0067328 Eth
$74,677,870.00
5,119,987.630 LINK
11.1630%
3
Coinbase Exchange
LINK-USD$14.60
0.0067340 Eth
$59,603,961.00
4,083,861.660 LINK
8.9039%
4
Gate.io
LINK-USDT$14.63
0.0067501 Eth
$32,993,769.00
2,368,688.980 LINK
5.1644%
5
Ourbit
LINK-USDT$14.62
0.0067464 Eth
$20,677,420.00
1,484,103.970 LINK
3.2358%
6
HTX
LINK-USDT$14.63
0.0067470 Eth
$19,193,875.00
1,375,335.248 LINK
2.9986%
7
P2B
LINK-USDT$14.62
0.0067441 Eth
$18,932,987.00
1,295,013.340 LINK
2.8235%
8
OKX
LINK-USDT$14.63
0.0067493 Eth
$17,786,361.00
1,273,460.283 LINK
2.7765%
9
DigiFinex
LINK-USDT$14.64
0.0067526 Eth
$17,207,829.00
1,175,365.530 LINK
2.5626%
10
Binance
LINK-USDC$14.66
0.0067157 Eth
$13,930,958.00
1,002,820.230 LINK
2.1864%
11
Bybit
LINK-USDT$14.62
0.0067440 Eth
$13,845,332.00
995,242.304 LINK
2.1699%
12
MEXC
LINK-EUR$14.65
0.0067579 Eth
$13,437,023.00
917,221.330 LINK
1.9998%
13
XT.COM
LINK-USDT$14.63
0.0067486 Eth
$12,931,945.00
928,708.260 LINK
2.0248%
14
MEXC
LINK-USDC$14.64
0.0067544 Eth
$12,833,359.00
876,460.810 LINK
1.9109%
15
Bitget
LINK-USDT$14.63
0.0067486 Eth
$11,912,003.00
855,202.014 LINK
1.8646%
16
LBank
LINK-USDT$14.62
0.0067440 Eth
$11,904,127.00
814,135.320 LINK
1.7750%
17
Hotcoin
LINK-USDT$14.61
0.0067409 Eth
$11,362,041.00
777,690.200 LINK
1.6956%
18
Coinstore
LINK-USDT$14.59
0.0067191 Eth
$9,917,155.00
711,677.130 LINK
1.5517%
19
KuCoin
LINK-USDT$14.63
0.0067478 Eth
$9,627,564.00
658,168.229 LINK
1.4350%
20
Slex
LINK-USDT$14.61
0.0067398 Eth
$9,325,906.00
667,048.650 LINK
1.4543%
21
CoinW
LINK-USDT$14.59
0.0067300 Eth
$9,015,367.00
618,063.130 LINK
1.3475%
22
Binance
LINK-FDUSD$14.63
0.0067491 Eth
$8,859,869.00
638,276.490 LINK
1.3916%
23
BYDFi
LINK-USDT$14.72
0.0067318 Eth
$7,698,723.00
523,156.080 LINK
1.1406%
24
Bitunix
LINK-USDT$14.59
0.0067313 Eth
$7,518,247.00
515,518.470 LINK
1.1240%
25
Azbit
LINK-USDT$14.61
0.0067420 Eth
$7,421,428.00
532,869.382 LINK
1.1618%
26
LATOKEN
LINK-USDT$14.63
0.0067530 Eth
$5,760,162.00
393,605.031 LINK
0.8582%
27
QMall
LINK-USDT$14.62
0.0067333 Eth
$5,302,878.00
381,033.765 LINK
0.8308%
28
Kraken
LINK-USD$14.61
0.0067372 Eth
$5,124,247.00
350,855.436 LINK
0.7650%
29
BTSE
LINK-USDT$14.60
0.0067234 Eth
$4,271,027.00
292,455.801 LINK
0.6376%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$14.62
0.0067458 Eth
$4,244,098.00
294,301.759 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.6417%
31
Bitvavo
LINK-EUR$14.62
0.0067466 Eth
$3,863,765.00
264,192.932 LINK
0.5760%
32
Dex-Trade
LINK-USDT$14.61
0.0067406 Eth
$3,308,173.00
226,429.100 LINK
0.4937%
33
Coinbase Exchange
LINK-EUR$14.63
0.0067454 Eth
$2,952,416.00
201,848.260 LINK
0.4401%
34
CoinEx
LINK-USDT$14.61
0.0067392 Eth
$2,587,094.00
184,479.108 LINK
0.4022%
35
FMCPAY
LINK-USDT$14.60
0.0067389 Eth
$2,434,391.00
174,075.773 LINK
0.3795%
36
Hibt
LINK-USDT$14.61
0.0067248 Eth
$2,209,044.00
158,226.403 LINK
0.3450%
37
Biconomy.com
LINK-USDT$14.57
0.0067098 Eth
$2,081,792.00
149,484.310 LINK
0.3259%
38
AscendEX (BitMax)
LINK-USDT$14.64
0.0067537 Eth
$2,037,777.00
139,179.400 LINK
0.3034%
39
Binance
LINK-ETH$14.59
0.0067286 Eth
$1,888,684.00
130,985.380 LINK
0.2856%
40
Coinbase Exchange
LINK-GBP$14.63
0.0067454 Eth
$1,870,868.00
127,905.880 LINK
0.2789%
41
PointPay
LINK-USDT$14.59
0.0067309 Eth
$1,709,328.00
122,951.207 LINK
0.2681%
42
Tokpie
LINK-USDT$14.65
0.0067480 Eth
$1,635,554.00
111,624.967 LINK
0.2434%
43
Gemini
LINK-USD$14.63
0.0067462 Eth
$1,447,500.00
98,974.377 LINK
0.2158%
44
Coinbase Exchange
LINK-USDT$14.62
0.0067448 Eth
$1,333,857.00
91,229.950 LINK
0.1989%
45
Phemex
LINK-USDT$14.60
0.0067382 Eth
$1,285,200.00
88,022.250 LINK
0.1919%
46
FMCPAY
LINK-ETH$14.61
0.0067412 Eth
$1,270,174.00
88,090.400 LINK
0.1921%
47
Kraken
LINK-EUR$14.62
0.0067459 Eth
$1,254,450.00
85,781.917 LINK
0.1870%
48
BigONE
LINK-USDT$14.66
0.0067647 Eth
$1,223,238.00
83,431.500 LINK
0.1819%
49
EXMO
LINK-USDT$14.64
0.0067492 Eth
$1,116,172.00
76,266.710 LINK
0.1663%
50
Bitbank
LINK-JPY$14.66
0.0067626 Eth
$1,102,804.00
75,240.104 LINK
0.1640%
51
FMCPAY
LINK-BTC$14.62
0.0067322 Eth
$1,089,595.00
74,765.200 LINK
0.1630%
52
QMall
LINK-USDC$14.60
0.0067339 Eth
$1,067,563.00
76,694.249 LINK
0.1672%
53
WhiteBIT
LINK-BTC$14.63
0.0067502 Eth
$1,017,292.00
69,516.970 LINK
0.1516%
54
OKX
LINK-USDC$14.60
0.0067334 Eth
$975,272.00
70,747.521 LINK
0.1542%
55
Bybit
LINK-USDC$14.62
0.0067451 Eth
$968,908.00
69,819.359 LINK
0.1522%
56
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.60
0.0067394 Eth
$956,998.00
66,440.114 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1449%
57
Trubit
LINK-USDT$14.61
0.0067379 Eth
$860,844.00
61,305.370 LINK
0.1337%
58
EarnBIT
LINK-USDT$14.58
0.0067168 Eth
$848,711.00
60,988.279 LINK
0.1330%
59
BitStorage
LINK-USDT$14.60
0.0067382 Eth
$838,944.00
57,458.510 LINK
0.1253%
60
Kraken
LINK-USDT$14.67
0.0067665 Eth
$801,162.00
54,617.979 LINK
0.1191%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$14.65
0.0067618 Eth
$798,595.00
57,642.852 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1257%
62
Binance
LINK-EUR$14.64
0.0067520 Eth
$798,331.00
57,300.240 LINK
0.1249%
63
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$14.61
0.0067415 Eth
$736,090.00
102,063.402 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2225%
64
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$14.60
0.0067384 Eth
$615,436.00
43,408.623 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0946%
65
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$14.56
0.0067163 Eth
$558,811.00
38,721.069 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0844%
66
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$14.62
0.0067419 Eth
$542,421.00
37,885.219 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0826%
67
Binance
LINK-TRY$14.62
0.0067344 Eth
$541,500.00
38,534.260 LINK
0.0840%
68
WhiteBIT
LINK-TRY$14.69
0.0067759 Eth
$527,744.00
35,923.180 LINK
0.0783%
69
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.60
0.0067366 Eth
$458,013.00
31,808.463 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0694%
70
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$14.62
0.0067458 Eth
$454,597.00
32,768.339 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0714%
71
tanX
LINK-USDC$14.60
0.0067358 Eth
$449,198.00
32,381.590 LINK
0.0706%
72
BitMart
LINK-BTC$14.60
0.0067366 Eth
$429,179.00
29,398.280 LINK
0.0641%
73
GMO Japan
LINK-JPY$14.75
0.0068036 Eth
$425,932.00
28,884.600 LINK
0.0630%
74
Kraken
LINK-USDC$14.75
0.0068052 Eth
$407,892.00
27,649.440 LINK
0.0603%
75
itBit
LINK-USD$14.60
0.0067378 Eth
$394,228.00
27,001.915 LINK
0.0589%
76
Coinbase Exchange
LINK-BTC$14.60
0.0067342 Eth
$376,909.00
25,811.070 LINK
0.0563%
77
BYDFi
LINK-USDC$14.61
0.0067425 Eth
$376,179.00
25,748.290 LINK
0.0561%
78
Hotcoin
LINK-BTC$14.64
0.0067509 Eth
$371,983.00
25,410.940 LINK
0.0554%
79
BitStorage
LINK-ETH$14.58
0.0067236 Eth
$355,736.00
24,399.500 LINK
0.0532%
80
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.60
0.0067376 Eth
$354,805.00
24,590.007 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0536%
81
BitDelta
LINK-USDT$14.59
0.0067312 Eth
$341,908.00
24,448.000 LINK
0.0533%
82
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$14.60
0.0067394 Eth
$249,994.00
17,918.176 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0391%
83
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$14.58
0.0067252 Eth
$248,812.00
18,140.582 0X5947BB275C521040051D82396192181B413227A3
0.0396%
84
Slex
LINK-ETH$14.62
0.0067445 Eth
$244,756.00
16,957.340 LINK
0.0370%
85
bitcastle
LINK-USDT$14.61
0.0067306 Eth
$240,478.00
17,277.780 LINK
0.0377%
86
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$14.54
0.0066958 Eth
$232,411.00
16,757.429 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0365%
87
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$14.57
0.0067205 Eth
$197,963.00
13,683.527 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0298%
88
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$14.65
0.0067618 Eth
$188,505.00
180,466.907 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.3935%
89
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$14.59
0.0067298 Eth
$184,998.00
12,838.536 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0280%
90
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$14.61
0.0067402 Eth
$163,001.00
11,294.237 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0246%
91
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$14.62
0.0067458 Eth
$158,051.00
149,952.870 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3269%
92
Bitso
LINK-USD$14.61
0.0067413 Eth
$154,737.00
10,588.447 LINK
0.0231%
93
KuCoin
LINK-USDC$14.61
0.0067389 Eth
$142,457.00
9,751.540 LINK
0.0213%
94
CoinTR
LINK-TRY$14.66
0.0067652 Eth
$140,767.00
9,997.830 LINK
0.0218%
95
Binance
LINK-BNB$14.58
0.0067161 Eth
$129,590.00
9,191.126 LINK
0.0200%
96
CoinJar Exchange
LINK-AUD$14.55
0.0067130 Eth
$127,772.00
8,782.342 LINK
0.0191%
97
OKX
LINK-EUR$14.64
0.0067534 Eth
$117,448.00
8,386.307 LINK
0.0183%
98
PointPay
LINK-BTC$14.61
0.0067424 Eth
$115,888.00
7,973.132 LINK
0.0174%
99
Coinbase Exchange
LINK-ETH$14.63
0.0067489 Eth
$110,604.00
7,557.780 LINK
0.0165%
100
Bittime
LINK-IDR$14.71
0.0067886 Eth
$27,674.00
1,954.890 LINK
0.0043%

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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