ETH Price: $2,770.52 (+4.09%)
Gas: 0.72 Gwei

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

738,565 ( 0.074%)

Market

Price

$17.78 @ 0.006418 ETH (+2.27%)

Onchain Market Cap

$17,780,000,000.00

Circulating Supply Market Cap

$11,346,376,618.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0.007 LINK

Value
$0.12 ( ~4.33132299483265E-05 Eth) [0.0000%]
0x186bb7389755c9d20f93c788988edeae5b2594c3
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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 16063.64% |ETH 0.0003846 1568.75%

Market

Volume (24H):$390,409,627.00
Market Capitalization:$11,346,376,618.00
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
Bybit
LINK-USDT$17.78
0.0064189 Eth
$19,673,445.00
1,118,986.872 LINK
10.7193%
2
HTX
LINK-USDT$17.80
0.0064239 Eth
$18,353,345.00
1,041,531.398 LINK
9.9773%
3
Coinbase Exchange
LINK-USD$17.81
0.0064281 Eth
$13,560,776.00
761,456.350 LINK
7.2944%
4
Bitget
LINK-USDT$17.79
0.0064232 Eth
$12,812,035.00
726,734.065 LINK
6.9617%
5
Slex
LINK-USDT$17.79
0.0064233 Eth
$9,881,626.00
559,925.340 LINK
5.3638%
6
P2B
LINK-USDT$17.80
0.0064264 Eth
$7,821,051.00
439,331.180 LINK
4.2086%
7
Gate.io
LINK-USDT$17.78
0.0064171 Eth
$7,729,302.00
439,151.380 LINK
4.2069%
8
OKX
LINK-USDT$17.81
0.0064294 Eth
$7,125,946.00
405,000.719 LINK
3.8797%
9
Ourbit
LINK-USDT$17.79
0.0064246 Eth
$7,051,869.00
399,665.040 LINK
3.8286%
10
WEEX
LINK-USDT$17.77
0.0064188 Eth
$6,603,242.00
374,145.242 LINK
3.5841%
11
BVOX
LINK-USDT$17.80
0.0064254 Eth
$5,643,602.00
319,531.820 LINK
3.0610%
12
DigiFinex
LINK-USDT$17.81
0.0064297 Eth
$4,938,355.00
277,269.710 LINK
2.6561%
13
Deepcoin
LINK-USDT$17.80
0.0064264 Eth
$3,774,639.00
220,651.469 LINK
2.1137%
14
MEXC
LINK-EUR$17.78
0.0064217 Eth
$3,697,304.00
207,943.770 LINK
1.9920%
15
XT.COM
LINK-USDT$17.80
0.0064269 Eth
$3,639,276.00
206,294.100 LINK
1.9762%
16
FameEX
LINK-USDT$17.80
0.0064282 Eth
$3,637,720.00
206,230.044 LINK
1.9756%
17
MEXC
LINK-USDC$17.79
0.0064222 Eth
$3,551,062.00
199,580.700 LINK
1.9119%
18
Coinstore
LINK-USDT$17.77
0.0064174 Eth
$3,449,439.00
195,700.120 LINK
1.8747%
19
Binance
LINK-FDUSD$17.80
0.0064275 Eth
$3,330,625.00
188,811.840 LINK
1.8087%
20
KuCoin
LINK-USDT$17.80
0.0064264 Eth
$3,154,215.00
177,161.868 LINK
1.6971%
21
Bitunix
LINK-USDT$17.81
0.0064287 Eth
$2,722,078.00
152,901.160 LINK
1.4647%
22
Azbit
LINK-USDT$17.79
0.0064244 Eth
$2,219,165.00
125,795.286 LINK
1.2051%
23
BYDFi
LINK-USDT$17.78
0.0064220 Eth
$2,039,565.00
114,699.160 LINK
1.0988%
24
Kraken
LINK-USD$17.80
0.0064259 Eth
$1,980,296.00
111,254.266 LINK
1.0658%
25
BTSE
LINK-USDT$17.80
0.0064267 Eth
$1,930,740.00
108,451.532 LINK
1.0389%
26
Toobit
LINK-USDT$17.79
0.0064241 Eth
$1,767,277.00
100,100.400 LINK
0.9589%
27
Biconomy.com
LINK-USDT$17.78
0.0064210 Eth
$1,505,763.00
85,440.700 LINK
0.8185%
28
QMall
LINK-USDT$17.79
0.0064232 Eth
$1,501,386.00
85,101.637 LINK
0.8152%
29
FMCPAY
LINK-USDT$17.79
0.0064231 Eth
$1,359,635.00
76,932.504 LINK
0.7370%
30
CoinEx
LINK-USDT$17.77
0.0064157 Eth
$1,252,491.00
71,216.355 LINK
0.6822%
31
Dex-Trade
LINK-USDT$17.82
0.0064346 Eth
$1,203,131.00
67,504.920 LINK
0.6467%
32
FMCPAY
LINK-ETH$17.79
0.0064222 Eth
$972,818.00
54,221.760 LINK
0.5194%
33
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.77
0.0064166 Eth
$964,085.00
53,713.826 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5146%
34
Bitvavo
LINK-EUR$17.80
0.0064273 Eth
$865,298.00
48,606.074 LINK
0.4656%
35
FMCPAY
LINK-BTC$17.77
0.0064172 Eth
$789,307.00
44,661.800 LINK
0.4278%
36
Coinbase Exchange
LINK-EUR$17.76
0.0064120 Eth
$674,092.00
37,956.960 LINK
0.3636%
37
Bybit
LINK-USDC$17.72
0.0063970 Eth
$441,039.00
25,199.316 LINK
0.2414%
38
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$17.78
0.0064209 Eth
$436,069.00
24,489.843 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2346%
39
EXMO
LINK-USDT$17.81
0.0064293 Eth
$417,478.00
23,443.097 LINK
0.2246%
40
Coinbase Exchange
LINK-GBP$17.78
0.0064208 Eth
$399,511.00
22,464.920 LINK
0.2152%
41
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.77
0.0064129 Eth
$351,707.00
39,232.855 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3758%
42
Kraken
LINK-ETH$17.82
0.0064345 Eth
$349,175.00
19,590.536 LINK
0.1877%
43
BigONE
LINK-USDT$17.74
0.0064086 Eth
$343,554.00
19,361.580 LINK
0.1855%
44
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.75
0.0064101 Eth
$338,080.00
18,873.972 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1808%
45
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$17.81
0.0064283 Eth
$301,299.00
16,864.776 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1616%
46
BitMart
LINK-BTC$17.79
0.0064226 Eth
$278,449.00
15,651.400 LINK
0.1499%
47
WhiteBIT
LINK-BTC$17.78
0.0064186 Eth
$246,227.00
13,849.090 LINK
0.1327%
48
LATOKEN
LINK-BTC$17.78
0.0064183 Eth
$216,748.00
12,193.071 LINK
0.1168%
49
QMall
LINK-USDC$17.78
0.0064195 Eth
$213,683.00
12,086.804 LINK
0.1158%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$17.73
0.0064004 Eth
$208,537.00
11,800.698 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1130%
51
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.76
0.0064102 Eth
$181,816.00
10,105.346 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0968%
52
Bitci TR
LINK-TRY$17.89
0.0064596 Eth
$181,754.00
10,255.398 LINK
0.0982%
53
Slex
LINK-ETH$17.78
0.0064184 Eth
$181,274.00
10,066.290 LINK
0.0964%
54
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.73
0.0064004 Eth
$178,201.00
178,032.645 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.7055%
55
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$17.77
0.0064166 Eth
$133,665.00
7,558.219 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0724%
56
WEEX
LINK-USDC$17.78
0.0064207 Eth
$132,987.00
7,532.100 LINK
0.0722%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.79
0.0064213 Eth
$124,978.00
6,970.765 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0668%
58
BitStorage
LINK-ETH$17.78
0.0064194 Eth
$120,704.00
6,786.890 LINK
0.0650%
59
Hotcoin
LINK-BTC$17.78
0.0064229 Eth
$96,783.00
5,442.200 LINK
0.0521%
60
BYDFi
LINK-USDC$17.72
0.0064008 Eth
$86,073.00
4,857.440 LINK
0.0465%
61
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.84
0.0064389 Eth
$84,914.00
4,797.942 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0460%
62
GMO Japan
LINK-JPY$17.83
0.0064393 Eth
$84,413.00
4,733.000 LINK
0.0453%
63
BitMart
LINK-ETH$17.80
0.0064237 Eth
$81,287.00
4,567.500 LINK
0.0438%
64
KuCoin
LINK-USDC$17.76
0.0064090 Eth
$65,798.00
3,705.703 LINK
0.0355%
65
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.79
0.0064199 Eth
$44,714.00
2,492.325 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0239%
66
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$17.89
0.0064573 Eth
$41,195.00
2,319.978 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0222%
67
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$17.85
0.0064428 Eth
$40,200.00
2,243.149 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0215%
68
KuCoin
LINK-BTC$17.84
0.0064380 Eth
$40,165.00
2,251.872 LINK
0.0216%
69
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.77
0.0064166 Eth
$35,465.00
35,216.330 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3374%
70
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.74
0.0064022 Eth
$29,687.00
29,672.888 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.2843%
71
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$17.76
0.0064121 Eth
$24,557.00
1,381.347 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0132%
72
THENA FUSION
0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD$17.84
0.0064414 Eth
$23,626.00
32.226 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827
0.0003%
73
EXMO
LINK-BTC$17.82
0.0064347 Eth
$22,499.00
1,262.311 LINK
0.0121%
74
Uniswap V3 (BSC)
0XCF6BB5389C92BDDA8A3747DDB454CB7A64626C63-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD$17.83
0.0064363 Eth
$16,119.48
1,904.006 0XCF6BB5389C92BDDA8A3747DDB454CB7A64626C63
0.0182%
75
Dex-Trade
LINK-ETH$17.83
0.0064380 Eth
$14,026.42
786.570 LINK
0.0075%
76
CoinEx
LINK-USDC$17.83
0.0064364 Eth
$9,562.54
541.793 LINK
0.0052%
77
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0$17.77
0.0064146 Eth
$7,855.02
437.277 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0042%
78
Uniswap V3 (Arbitrum One)
0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.77
0.0064146 Eth
$6,553.74
26.517 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196
0.0003%
79
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955$17.77
0.0064165 Eth
$6,487.50
366.834 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0035%
80
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.78
0.0064167 Eth
$6,194.11
6,149.888 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.0589%
81
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F$17.73
0.0064004 Eth
$6,031.42
341.109 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0033%
82
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.77
0.0064168 Eth
$5,392.47
300.663 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0029%
83
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6$17.73
0.0064028 Eth
$5,044.30
285.579 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0027%
84
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$17.85
0.0064433 Eth
$3,563.04
197.744 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0019%
85
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.77
0.0064168 Eth
$3,233.80
3,215.167 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.0308%
86
CoinEx
LINK-BTC$17.86
0.0064468 Eth
$3,193.32
180.207 LINK
0.0017%
87
PancakeSwap V3 (Arbitrum)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.79
0.0064224 Eth
$3,184.36
177.025 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0017%
88
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B$17.79
0.0064254 Eth
$2,550.51
143.089 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0014%
89
Uniswap V4 (Polygon)
0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.73
0.0064052 Eth
$2,427.26
2,422.217 0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174
0.0232%
90
Uniswap V3 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.76
0.0064116 Eth
$2,271.83
9.185 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0001%
91
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$17.83
0.0064347 Eth
$1,787.02
99.716 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0010%
92
Retro
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.77
0.0064158 Eth
$1,413.71
78.892 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0008%
93
Uniswap V2 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0X6B175474E89094C44DA98B954EEDEAC495271D0F$17.78
0.0064229 Eth
$1,289.46
56.771 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0005%
94
LFJ
0X5947BB275C521040051D82396192181B413227A3-0XD036414FA2BCBB802691491E323BFF1348C5F4BA$17.87
0.0064542 Eth
$914.30
50.148 0X5947BB275C521040051D82396192181B413227A3
0.0005%
95
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$17.83
0.0064351 Eth
$739.06
41.140 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0004%
96
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D$17.85
0.0064438 Eth
$496.12
28.093 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0003%
97
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955$17.78
0.0064198 Eth
$468.19
24.230 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0002%
98
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$17.76
0.0064117 Eth
$383.35
21.476 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0002%
99
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B$17.83
0.0064361 Eth
$317.42
17.858 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0002%
100
KuCoin
LINK-KCS$17.81
0.0064301 Eth
$146.37
8.216 LINK
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

[{"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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