ETH Price: $2,435.23 (+4.75%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

721,363 ( 0.013%)

Market

Price

$11.17 @ 0.004587 ETH (+7.20%)

Onchain Market Cap

$11,170,000,000.00

Circulating Supply Market Cap

$7,001,653,273.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
zoomerdev.eth
Balance
2.339810767200335906 LINK

Value
$26.14 ( ~0.0107341003819475 Eth) [0.0000%]
0x5a9e792143bf2708b4765c144451dca54f559a19
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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 10054.55% |ETH 0.0003846 1092.67%

Market

Volume (24H):$376,521,161.00
Market Capitalization:$7,001,653,273.00
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$11.19
0.0045813 Eth
$23,402,179.00
2,156,556.400 LINK
15.6715%
2
WhiteBIT
LINK-USDT$11.21
0.0045895 Eth
$19,577,690.00
1,746,656.200 LINK
12.6928%
3
Coinbase Exchange
LINK-USD$11.19
0.0045855 Eth
$15,324,588.00
1,369,000.200 LINK
9.9484%
4
Bybit
LINK-USDT$11.21
0.0045913 Eth
$12,678,237.00
1,171,456.301 LINK
8.5129%
5
HTX
LINK-USDT$11.19
0.0045867 Eth
$11,880,420.00
1,099,833.758 LINK
7.9924%
6
Bitget
LINK-USDT$11.19
0.0045811 Eth
$9,052,977.00
838,393.958 LINK
6.0926%
7
Slex
LINK-USDT$11.18
0.0045822 Eth
$5,741,899.00
531,863.840 LINK
3.8650%
8
P2B
LINK-USDT$11.21
0.0045888 Eth
$4,954,860.00
442,100.720 LINK
3.2127%
9
Biconomy.com
LINK-USDT$11.20
0.0045886 Eth
$4,375,007.00
404,906.030 LINK
2.9424%
10
OKX
LINK-USDT$11.22
0.0045942 Eth
$3,978,957.00
367,275.749 LINK
2.6690%
11
Azbit
LINK-USDT$11.21
0.0045916 Eth
$3,556,805.00
327,036.200 LINK
2.3765%
12
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$11.13
0.0045592 Eth
$3,473,728.00
311,945.797 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.2669%
13
DigiFinex
LINK-USDT$11.19
0.0045811 Eth
$3,162,994.00
282,699.430 LINK
2.0544%
14
KuCoin
LINK-USDT$11.22
0.0045956 Eth
$2,847,915.00
253,735.350 LINK
1.8439%
15
XT.COM
LINK-USDT$11.21
0.0045917 Eth
$2,184,180.00
201,241.970 LINK
1.4624%
16
ProBit Global
LINK-USDT$11.21
0.0045887 Eth
$1,965,299.00
175,367.182 LINK
1.2744%
17
CoinW
LINK-USDT$11.21
0.0045888 Eth
$1,926,375.00
171,887.780 LINK
1.2491%
18
AscendEX (BitMax)
LINK-USDT$11.22
0.0045960 Eth
$1,791,708.00
159,633.000 LINK
1.1600%
19
Trubit
LINK-USDT$11.19
0.0045836 Eth
$1,777,592.00
163,342.460 LINK
1.1870%
20
Coinstore
LINK-USDT$11.21
0.0045934 Eth
$1,550,173.00
143,023.390 LINK
1.0393%
21
BYDFi
LINK-USDT$11.16
0.0045948 Eth
$1,156,222.00
103,631.330 LINK
0.7531%
22
FMCPAY
LINK-USDT$11.18
0.0045812 Eth
$968,868.00
89,669.371 LINK
0.6516%
23
Dex-Trade
LINK-USDT$11.21
0.0045917 Eth
$812,021.00
72,452.850 LINK
0.5265%
24
WhiteBIT
LINK-BTC$11.20
0.0045853 Eth
$778,687.00
69,534.130 LINK
0.5053%
25
Bitvavo
LINK-EUR$11.22
0.0045955 Eth
$775,215.00
69,078.548 LINK
0.5020%
26
FMCPAY
LINK-BTC$11.19
0.0045831 Eth
$642,778.00
58,590.400 LINK
0.4258%
27
Azbit
LINK-ETH$11.20
0.0045886 Eth
$616,591.00
55,196.608 LINK
0.4011%
28
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.20
0.0045859 Eth
$597,975.00
54,084.797 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.3930%
29
Bithumb
LINK-KRW$11.20
0.0045875 Eth
$515,313.00
45,997.052 LINK
0.3343%
30
tanX
LINK-USDC$11.12
0.0046011 Eth
$490,763.00
45,301.360 LINK
0.3292%
31
WhiteBIT
LINK-EUR$11.17
0.0045753 Eth
$461,768.00
41,340.060 LINK
0.3004%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.17
0.0045752 Eth
$439,639.00
39,447.832 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.2867%
33
FMCPAY
LINK-ETH$11.20
0.0045896 Eth
$436,876.00
39,271.200 LINK
0.2854%
34
BigONE
LINK-USDT$11.15
0.0045637 Eth
$405,262.00
36,360.450 LINK
0.2642%
35
PointPay
LINK-USDT$11.19
0.0045813 Eth
$385,923.00
35,535.787 LINK
0.2582%
36
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.17
0.0045742 Eth
$353,335.00
31,783.987 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.2310%
37
CoinEx
LINK-USDT$11.20
0.0045881 Eth
$339,547.00
31,469.265 LINK
0.2287%
38
EXMO
LINK-USDT$11.20
0.0045847 Eth
$332,059.00
29,657.867 LINK
0.2155%
39
Coinbase Exchange
LINK-EUR$11.19
0.0045855 Eth
$321,061.00
28,681.330 LINK
0.2084%
40
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.19
0.0045872 Eth
$317,102.00
28,574.840 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2077%
41
ProBit Global
LINK-BTC$11.21
0.0045902 Eth
$295,908.00
26,395.690 LINK
0.1918%
42
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.19
0.0045846 Eth
$288,652.00
25,744.519 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1871%
43
LATOKEN
LINK-USDT$11.21
0.0045895 Eth
$281,655.00
25,128.061 LINK
0.1826%
44
Phemex
LINK-USDT$11.21
0.0045913 Eth
$272,515.00
24,316.780 LINK
0.1767%
45
BitMart
LINK-BTC$11.22
0.0045949 Eth
$181,745.00
16,204.160 LINK
0.1178%
46
LATOKEN
LINK-BTC$11.22
0.0045927 Eth
$156,876.00
13,985.943 LINK
0.1016%
47
Coinbase Exchange
LINK-GBP$11.20
0.0045900 Eth
$144,669.00
12,915.030 LINK
0.0939%
48
BitDelta
LINK-USDT$11.20
0.0045859 Eth
$140,646.00
13,012.000 LINK
0.0946%
49
Bitci TR
LINK-TRY$11.20
0.0045865 Eth
$108,152.00
9,984.120 LINK
0.0726%
50
BYDFi
LINK-USDC$11.18
0.0045954 Eth
$104,248.00
9,326.060 LINK
0.0678%
51
OKX
LINK-USDC$11.20
0.0045884 Eth
$93,199.00
8,723.728 LINK
0.0634%
52
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$11.19
0.0045846 Eth
$78,295.00
76,013.545 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.5524%
53
Slex
LINK-BTC$11.18
0.0045813 Eth
$71,968.00
6,528.900 LINK
0.0474%
54
WhiteBIT
LINK-TRY$11.25
0.0046093 Eth
$71,937.00
6,392.590 LINK
0.0465%
55
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$11.15
0.0045653 Eth
$69,551.00
6,434.202 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0468%
56
Bitkub
LINK-THB$11.17
0.0045771 Eth
$68,307.00
6,112.873 LINK
0.0444%
57
Slex
LINK-ETH$11.21
0.0045916 Eth
$66,592.00
5,992.500 LINK
0.0435%
58
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$11.17
0.0045759 Eth
$59,094.00
57,155.775 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.4153%
59
PointPay
LINK-BTC$11.20
0.0045878 Eth
$48,192.00
4,354.413 LINK
0.0316%
60
Bitso
LINK-USD$11.21
0.0045899 Eth
$42,438.00
3,787.180 LINK
0.0275%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$11.20
0.0045893 Eth
$42,211.00
3,893.463 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0283%
62
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$11.19
0.0045872 Eth
$36,596.00
35,492.546 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.2579%
63
GMO Japan
LINK-JPY$11.20
0.0045880 Eth
$32,087.00
2,865.200 LINK
0.0208%
64
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.20
0.0045879 Eth
$32,004.00
2,864.880 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0208%
65
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$11.17
0.0045752 Eth
$31,566.00
2,909.578 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0211%
66
EXMO
LINK-BTC$11.22
0.0045949 Eth
$30,209.00
2,692.076 LINK
0.0196%
67
Mercado Bitcoin
LINK-BRL$11.23
0.0046007 Eth
$30,028.00
2,674.405 LINK
0.0194%
68
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.16
0.0045731 Eth
$28,953.00
2,619.354 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0190%
69
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$11.23
0.0045970 Eth
$27,386.00
2,447.974 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0178%
70
Binance US
LINK-USDT$11.18
0.0045772 Eth
$20,538.00
1,837.362 LINK
0.0134%
71
Coinone
LINK-KRW$11.20
0.0045875 Eth
$18,778.24
1,676.155 LINK
0.0122%
72
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$11.25
0.0046049 Eth
$18,422.83
1,647.332 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0120%
73
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$11.21
0.0045879 Eth
$15,695.32
1,426.684 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0104%
74
Pangolin
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$11.23
0.0045992 Eth
$15,399.62
1,376.903 0X5947BB275C521040051D82396192181B413227A3
0.0100%
75
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$11.19
0.0045854 Eth
$14,555.28
1,342.699 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0098%
76
THENA FUSION
0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD$11.22
0.0045988 Eth
$12,389.70
20.183 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827
0.0001%
77
LFJ
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$11.23
0.0046012 Eth
$11,017.01
988.074 0X5947BB275C521040051D82396192181B413227A3
0.0072%
78
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$11.22
0.0045926 Eth
$5,848.84
491.756 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0036%
79
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$11.17
0.0045752 Eth
$5,699.62
5,538.620 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.0402%
80
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6$11.21
0.0045922 Eth
$5,270.50
479.539 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0035%
81
PancakeSwap V1 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$11.17
0.0045746 Eth
$5,097.53
438.719 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0032%
82
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955$11.18
0.0045781 Eth
$3,577.85
328.605 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0024%
83
zondacrypto
LINK-PLN$11.28
0.0046196 Eth
$2,715.17
240.651 LINK
0.0017%
84
Ramses V2
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.17
0.0045742 Eth
$2,480.35
221.894 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0016%
85
PancakeSwap V3 (Arbitrum)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.17
0.0045740 Eth
$2,321.90
208.745 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0015%
86
CoinEx
LINK-BTC$11.19
0.0045822 Eth
$2,073.92
188.428 LINK
0.0014%
87
CoinEx
LINK-USDC$11.17
0.0045743 Eth
$1,992.51
184.080 LINK
0.0013%
88
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F$11.18
0.0045774 Eth
$1,367.28
125.842 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0009%
89
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D$11.22
0.0045944 Eth
$1,129.72
104.061 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0008%
90
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$11.22
0.0045944 Eth
$1,016.28
92.039 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0007%
91
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X7F5C764CBC14F9669B88837CA1490CCA17C31607$11.24
0.0046036 Eth
$961.21
87.899 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0006%
92
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991$11.16
0.0045869 Eth
$880.26
76.706 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0006%
93
Uniswap V3 (Optimism)
0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6$11.23
0.0045968 Eth
$753.40
734.837 0X0B2C639C533813F4AA9D7837CAF62653D097FF85
0.0053%
94
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$11.34
0.0046586 Eth
$415.73
37.493 0X5947BB275C521040051D82396192181B413227A3
0.0003%
95
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F$11.19
0.0045965 Eth
$369.18
33.453 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0002%
96
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.19
0.0045867 Eth
$302.16
28.509 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0002%
97
Balancer V2 (Polygon)
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0.0045517 Eth
$252.98
22.902 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0002%
98
Uniswap V3 (Arbitrum One)
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$211.66
376.486 0X912CE59144191C1204E64559FE8253A0E49E6548
0.0027%
99
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$191.86
17.302 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0001%
100
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0.0045699 Eth
$143.35
13.020 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0001%

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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