ETH Price: $2,508.31 (+0.68%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

722,221 ( -0.014%)

Market

Price

$11.00 @ 0.004385 ETH (+0.57%)

Onchain Market Cap

$11,000,000,000.00

Circulating Supply Market Cap

$6,905,659,838.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
3.81 LINK

Value
$41.91 ( ~0.0167084389046276 Eth) [0.0000%]
0x3c8d79d378366c9f118109b87ededb448c6efbba
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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 9900% |ETH 0.0003846 1040.15%

Market

Volume (24H):$366,174,148.00
Market Capitalization:$6,905,659,838.00
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$10.97
0.0043798 Eth
$22,577,999.00
2,059,233.400 LINK
16.2809%
2
Coinbase Exchange
LINK-USD$10.97
0.0043789 Eth
$13,796,775.00
1,257,682.270 LINK
9.9436%
3
HTX
LINK-USDT$10.97
0.0043778 Eth
$11,127,923.00
1,015,642.152 LINK
8.0300%
4
Bitget
LINK-USDT$10.97
0.0043788 Eth
$9,169,649.00
837,047.604 LINK
6.6179%
5
Bybit
LINK-USDT$10.98
0.0043798 Eth
$8,811,319.00
803,383.307 LINK
6.3518%
6
P2B
LINK-USDT$11.00
0.0043882 Eth
$4,722,393.00
429,357.120 LINK
3.3946%
7
OKX
LINK-USDT$10.98
0.0043863 Eth
$4,567,362.00
416,964.963 LINK
3.2966%
8
BTSE
LINK-USDT$10.99
0.0043850 Eth
$4,353,334.00
395,961.488 LINK
3.1306%
9
Azbit
LINK-USDT$11.00
0.0043895 Eth
$4,186,056.00
382,004.740 LINK
3.0202%
10
Slex
LINK-USDT$11.00
0.0043882 Eth
$3,856,747.00
351,951.740 LINK
2.7826%
11
Upbit
LINK-KRW$11.06
0.0044166 Eth
$3,855,178.00
348,475.247 LINK
2.7551%
12
Biconomy.com
LINK-USDT$10.97
0.0043783 Eth
$3,385,050.00
309,114.940 LINK
2.4440%
13
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$11.09
0.0044269 Eth
$3,373,323.00
307,357.458 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.4301%
14
Trubit
LINK-USDT$11.02
0.0043938 Eth
$3,175,319.00
289,629.170 LINK
2.2899%
15
KuCoin
LINK-USDT$10.97
0.0043774 Eth
$2,528,694.00
230,591.297 LINK
1.8231%
16
ProBit Global
LINK-USDT$10.97
0.0043787 Eth
$2,484,446.00
226,488.274 LINK
1.7907%
17
CoinW
LINK-USDT$11.02
0.0043953 Eth
$2,455,531.00
222,784.740 LINK
1.7614%
18
XT.COM
LINK-USDT$10.99
0.0043840 Eth
$2,263,054.00
206,481.080 LINK
1.6325%
19
Bitunix
LINK-USDT$11.02
0.0043954 Eth
$2,004,727.00
181,795.080 LINK
1.4373%
20
Hotcoin
LINK-USDT$10.98
0.0043796 Eth
$1,981,632.00
180,534.600 LINK
1.4274%
21
LBank
LINK-USDT$10.98
0.0043795 Eth
$1,799,619.00
163,954.870 LINK
1.2963%
22
AscendEX (BitMax)
LINK-USDT$10.92
0.0043559 Eth
$1,735,603.00
158,996.300 LINK
1.2571%
23
Coinstore
LINK-USDT$10.95
0.0043709 Eth
$1,600,369.00
146,104.260 LINK
1.1551%
24
WhiteBIT
LINK-BTC$10.98
0.0043815 Eth
$1,145,613.00
104,323.460 LINK
0.8248%
25
HashKey Global
LINK-USDT$10.95
0.0043702 Eth
$1,097,083.00
101,646.688 LINK
0.8036%
26
BYDFi
LINK-USDT$11.01
0.0043860 Eth
$1,070,829.00
97,249.450 LINK
0.7689%
27
Bitvavo
LINK-EUR$10.98
0.0043796 Eth
$804,406.00
73,284.176 LINK
0.5794%
28
Azbit
LINK-ETH$11.00
0.0043934 Eth
$773,453.00
70,704.818 LINK
0.5590%
29
Dex-Trade
LINK-USDT$10.97
0.0043758 Eth
$756,221.00
68,958.801 LINK
0.5452%
30
Bithumb
LINK-KRW$11.10
0.0044283 Eth
$721,124.00
64,971.144 LINK
0.5137%
31
CoinEx
LINK-USDT$10.98
0.0043819 Eth
$721,010.00
65,800.198 LINK
0.5202%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.00
0.0043894 Eth
$643,412.00
58,819.370 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4650%
33
AscendEX (BitMax)
LINK-BTC$11.01
0.0043920 Eth
$551,489.00
50,106.400 LINK
0.3962%
34
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$10.96
0.0043736 Eth
$524,779.00
48,030.414 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3797%
35
tanX
LINK-USDC$10.98
0.0043799 Eth
$524,034.00
47,767.010 LINK
0.3777%
36
BigONE
LINK-USDT$11.01
0.0043924 Eth
$521,876.00
47,396.820 LINK
0.3747%
37
ProBit Global
LINK-BTC$11.00
0.0043884 Eth
$441,187.00
40,110.849 LINK
0.3171%
38
LATOKEN
LINK-USDT$10.99
0.0043837 Eth
$430,168.00
39,155.092 LINK
0.3096%
39
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.01
0.0043918 Eth
$407,509.00
37,611.410 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2974%
40
PointPay
LINK-USDT$10.99
0.0043915 Eth
$374,373.00
34,187.297 LINK
0.2703%
41
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.02
0.0043976 Eth
$341,176.00
31,024.421 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2453%
42
LATOKEN
LINK-BTC$10.99
0.0043848 Eth
$317,689.00
28,909.804 LINK
0.2286%
43
WhiteBIT
LINK-EUR$11.00
0.0043881 Eth
$273,404.00
24,846.820 LINK
0.1964%
44
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.04
0.0044045 Eth
$259,637.00
23,733.623 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1876%
45
EXMO
LINK-USDT$10.96
0.0043746 Eth
$242,845.00
22,158.902 LINK
0.1752%
46
Phemex
LINK-USDT$11.03
0.0043968 Eth
$231,470.00
20,994.640 LINK
0.1660%
47
Bybit
LINK-USDC$11.02
0.0043968 Eth
$230,675.00
21,060.239 LINK
0.1665%
48
Coinbase Exchange
LINK-BTC$11.02
0.0043957 Eth
$210,479.00
19,094.220 LINK
0.1510%
49
BitMart
LINK-BTC$11.00
0.0043904 Eth
$193,773.00
17,611.160 LINK
0.1392%
50
Hotcoin
LINK-BTC$10.98
0.0043917 Eth
$193,110.00
17,584.740 LINK
0.1390%
51
WhiteBIT
LINK-TRY$11.09
0.0044255 Eth
$187,855.00
16,937.980 LINK
0.1339%
52
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$11.02
0.0043977 Eth
$177,778.00
16,144.773 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1276%
53
Gemini
LINK-USD$10.97
0.0043816 Eth
$174,628.00
15,918.683 LINK
0.1259%
54
Binance
LINK-TRY$11.10
0.0044296 Eth
$156,599.00
14,172.610 LINK
0.1121%
55
Coinbase Exchange
LINK-ETH$11.00
0.0043905 Eth
$156,411.00
14,215.120 LINK
0.1124%
56
BitDelta
LINK-USDT$11.00
0.0043848 Eth
$143,117.00
13,067.000 LINK
0.1033%
57
BYDFi
LINK-USDC$11.02
0.0043967 Eth
$135,986.00
12,340.800 LINK
0.0976%
58
Hotcoin
LINK-ETH$10.98
0.0043820 Eth
$125,300.00
11,409.050 LINK
0.0902%
59
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$11.04
0.0044076 Eth
$124,715.00
11,405.125 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0902%
60
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$10.98
0.0043824 Eth
$106,419.00
105,998.256 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.8381%
61
Coinbase Exchange
LINK-GBP$11.00
0.0043901 Eth
$104,041.00
9,456.400 LINK
0.0748%
62
Slex
LINK-BTC$11.02
0.0043967 Eth
$92,727.00
8,327.600 LINK
0.0658%
63
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$11.00
0.0043880 Eth
$78,852.00
78,408.440 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.6199%
64
Slex
LINK-ETH$11.01
0.0043950 Eth
$61,113.00
5,575.820 LINK
0.0441%
65
PointPay
LINK-BTC$10.99
0.0043922 Eth
$60,492.00
5,436.254 LINK
0.0430%
66
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$10.98
0.0043805 Eth
$58,802.00
5,358.858 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0424%
67
OKX
LINK-USDC$11.01
0.0043929 Eth
$58,063.00
5,294.653 LINK
0.0419%
68
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$10.99
0.0043887 Eth
$58,010.00
5,303.397 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0419%
69
GMO Japan
LINK-JPY$11.08
0.0044218 Eth
$57,234.00
5,164.200 LINK
0.0408%
70
Bitkub
LINK-THB$11.00
0.0043896 Eth
$50,506.00
4,592.835 LINK
0.0363%
71
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$10.98
0.0043785 Eth
$30,049.00
29,969.542 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.2369%
72
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$10.94
0.0043671 Eth
$29,928.00
2,738.632 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0217%
73
Mercado Bitcoin
LINK-BRL$11.02
0.0043971 Eth
$27,519.00
2,497.349 LINK
0.0197%
74
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$11.00
0.0043894 Eth
$26,921.00
26,968.450 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.2132%
75
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$10.99
0.0043882 Eth
$26,091.00
2,351.203 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0186%
76
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$10.93
0.0043644 Eth
$23,078.00
2,105.982 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0167%
77
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.00
0.0043905 Eth
$20,672.00
1,901.876 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0150%
78
Pangolin
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$10.99
0.0043880 Eth
$20,480.00
1,932.733 0X5947BB275C521040051D82396192181B413227A3
0.0153%
79
Nonkyc.io
LINK-BTC$10.97
0.0043782 Eth
$19,032.86
1,704.413 LINK
0.0135%
80
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$10.95
0.0043702 Eth
$18,203.63
1,665.704 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0132%
81
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$10.98
0.0043837 Eth
$17,830.37
1,630.062 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0129%
82
LFJ
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$10.97
0.0043786 Eth
$17,254.27
1,627.249 0X5947BB275C521040051D82396192181B413227A3
0.0129%
83
CoinEx
LINK-BTC$10.97
0.0043739 Eth
$15,872.87
1,433.324 LINK
0.0113%
84
Binance US
LINK-USDT$11.00
0.0043852 Eth
$15,649.30
1,423.091 LINK
0.0113%
85
THENA FUSION
0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD$11.04
0.0044056 Eth
$13,225.70
20.227 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827
0.0002%
86
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$10.99
0.0043921 Eth
$9,114.78
837.565 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0066%
87
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955$10.99
0.0043861 Eth
$7,848.44
718.709 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0057%
88
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6$11.04
0.0044064 Eth
$7,758.66
697.650 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0055%
89
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$10.91
0.0043547 Eth
$5,684.12
520.290 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0041%
90
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F$10.98
0.0043853 Eth
$5,503.30
502.084 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0040%
91
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$11.03
0.0043995 Eth
$2,278.62
206.995 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0016%
92
CoinEx
LINK-USDC$11.02
0.0043969 Eth
$2,218.87
203.027 LINK
0.0016%
93
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D$11.03
0.0043995 Eth
$1,480.70
133.158 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0011%
94
Lydia Finance
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$11.04
0.0044035 Eth
$1,251.13
118.515 0X5947BB275C521040051D82396192181B413227A3
0.0009%
95
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991$10.98
0.0043841 Eth
$934.86
85.997 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0007%
96
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X7F5C764CBC14F9669B88837CA1490CCA17C31607$11.06
0.0044121 Eth
$829.18
75.729 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0006%
97
Uniswap V3 (Optimism)
0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6$11.00
0.0043881 Eth
$760.24
755.073 0X0B2C639C533813F4AA9D7837CAF62653D097FF85
0.0060%
98
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0$11.00
0.0043904 Eth
$708.97
63.745 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0005%
99
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063$11.04
0.0044066 Eth
$382.68
34.961 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0003%
100
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X7130D2A12B9BCBFAE4F2634D864A1EE1CE3EAD9C$10.93
0.0043704 Eth
$312.69
28.186 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0002%

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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