ETH Price: $3,314.84 (-0.59%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

730,523 ( 0.022%)

Market

Price

$25.33 @ 0.007641 ETH (+0.81%)

Onchain Market Cap

$25,330,000,000.00

Circulating Supply Market Cap

$16,164,939,324.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
Binance Dep: 0xDD694d9f0cfC66A088A29999e03088aC72721F22
Balance
0 LINK

Value
$0.00
0xdd694d9f0cfc66a088a29999e03088ac72721f22
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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 22927.27% |ETH 0.0003846 1886.74%

Market

Volume (24H):$539,110,561.00
Market Capitalization:$16,164,939,324.00
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
Websea
LINK-USDT$25.33
0.0076403 Eth
$65,005,584.00
0.000 LINK
0.0000%
2
Binance
LINK-USDT$25.37
0.0076545 Eth
$64,250,807.00
2,541,207.560 LINK
19.4058%
3
Coinbase Exchange
LINK-USD$25.36
0.0076475 Eth
$33,154,210.00
1,307,394.220 LINK
9.9838%
4
Bybit
LINK-USDT$25.33
0.0076393 Eth
$25,125,383.00
992,875.907 LINK
7.5820%
5
WEEX
LINK-USDT$25.32
0.0076369 Eth
$22,478,934.00
888,859.300 LINK
6.7877%
6
P2B
LINK-USDT$25.34
0.0076431 Eth
$13,768,791.00
543,449.100 LINK
4.1500%
7
HTX
LINK-USDT$25.36
0.0076476 Eth
$13,068,295.00
517,043.405 LINK
3.9484%
8
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$25.39
0.0076609 Eth
$10,771,189.00
428,688.402 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.2737%
9
OKX
LINK-USDT$25.37
0.0076504 Eth
$10,734,827.00
423,941.746 LINK
3.2374%
10
DigiFinex
LINK-USDT$25.33
0.0076404 Eth
$8,357,539.00
329,883.590 LINK
2.5191%
11
BVOX
LINK-USDT$25.38
0.0076536 Eth
$7,417,406.00
293,571.910 LINK
2.2418%
12
Deepcoin
LINK-USDT$25.35
0.0076435 Eth
$7,406,393.00
316,655.200 LINK
2.4181%
13
Gate.io
LINK-USDT$25.36
0.0076478 Eth
$6,395,554.00
252,989.400 LINK
1.9319%
14
Azbit
LINK-USDT$25.34
0.0076427 Eth
$6,373,992.00
252,182.691 LINK
1.9258%
15
XT.COM
LINK-USDT$25.34
0.0076431 Eth
$6,344,889.00
250,947.480 LINK
1.9163%
16
FameEX
LINK-USDT$25.33
0.0076416 Eth
$6,327,072.00
250,237.754 LINK
1.9109%
17
KuCoin
LINK-USDT$25.36
0.0076490 Eth
$6,014,530.00
237,121.321 LINK
1.8108%
18
Coinstore
LINK-USDT$25.35
0.0076482 Eth
$5,951,336.00
235,503.810 LINK
1.7984%
19
Bitunix
LINK-USDT$25.36
0.0076481 Eth
$5,344,965.00
210,789.550 LINK
1.6097%
20
BTSE
LINK-USDT$25.30
0.0076398 Eth
$4,203,613.00
166,140.539 LINK
1.2687%
21
CoinW
LINK-USDT$25.34
0.0076418 Eth
$3,992,027.00
157,554.000 LINK
1.2032%
22
BYDFi
LINK-USDT$25.28
0.0076379 Eth
$3,675,012.00
145,391.540 LINK
1.1103%
23
Coinbase Exchange
LINK-EUR$25.36
0.0076475 Eth
$3,340,698.00
131,739.650 LINK
1.0060%
24
Kraken
LINK-USD$25.34
0.0076406 Eth
$3,041,407.00
120,038.488 LINK
0.9167%
25
LATOKEN
LINK-USDT$25.31
0.0076341 Eth
$3,029,783.00
119,719.044 LINK
0.9142%
26
FMCPAY
LINK-USDT$25.36
0.0076465 Eth
$3,010,534.00
118,958.710 LINK
0.9084%
27
Bitvavo
LINK-EUR$25.36
0.0076529 Eth
$2,576,857.00
101,592.518 LINK
0.7758%
28
QMall
LINK-USDT$25.30
0.0076310 Eth
$2,493,389.00
98,564.751 LINK
0.7527%
29
Hotcoin
LINK-USDT$25.34
0.0076431 Eth
$2,273,355.00
89,700.480 LINK
0.6850%
30
Bitstamp
LINK-USD$25.37
0.0076506 Eth
$2,101,489.00
82,833.615 LINK
0.6326%
31
Dex-Trade
LINK-USDT$25.33
0.0076403 Eth
$2,061,611.00
81,395.494 LINK
0.6216%
32
FMCPAY
LINK-ETH$25.35
0.0076465 Eth
$1,688,001.00
66,976.960 LINK
0.5115%
33
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$25.25
0.0076136 Eth
$1,631,382.00
64,846.934 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4952%
34
Bitstamp
LINK-EUR$25.33
0.0076376 Eth
$1,441,720.00
56,924.587 LINK
0.4347%
35
FMCPAY
LINK-BTC$25.33
0.0076425 Eth
$1,409,876.00
55,685.200 LINK
0.4252%
36
CoinEx
LINK-USDT$25.28
0.0076303 Eth
$1,308,106.00
51,577.014 LINK
0.3939%
37
Coinbase Exchange
LINK-GBP$25.34
0.0076426 Eth
$1,284,886.00
50,698.770 LINK
0.3872%
38
OKX
LINK-USDC$25.31
0.0076321 Eth
$1,165,102.00
45,778.823 LINK
0.3496%
39
tanX
LINK-USDC$25.34
0.0076434 Eth
$1,090,876.00
43,074.740 LINK
0.3289%
40
PointPay
LINK-USDT$25.32
0.0076451 Eth
$969,339.00
38,336.194 LINK
0.2928%
41
Pionex
LINK-USDT$25.34
0.0076422 Eth
$886,839.00
35,074.410 LINK
0.2678%
42
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.23
0.0076095 Eth
$796,270.00
31,689.025 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2420%
43
WhiteBIT
LINK-TRY$25.45
0.0076762 Eth
$735,069.00
28,886.090 LINK
0.2206%
44
EXMO
LINK-USDT$25.36
0.0076481 Eth
$725,861.00
28,620.925 LINK
0.2186%
45
Phemex
LINK-USDT$25.34
0.0076415 Eth
$664,580.00
26,231.580 LINK
0.2003%
46
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$25.31
0.0076346 Eth
$507,646.00
20,068.218 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1532%
47
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$25.25
0.0076136 Eth
$494,231.00
19,634.359 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1499%
48
Coinbase Exchange
LINK-USDT$25.34
0.0076405 Eth
$467,285.00
18,443.280 LINK
0.1408%
49
WhiteBIT
LINK-BTC$25.33
0.0076502 Eth
$441,512.00
17,427.830 LINK
0.1331%
50
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$25.36
0.0076483 Eth
$441,494.00
17,441.984 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1332%
51
Bitbank
LINK-JPY$25.36
0.0076500 Eth
$437,341.00
17,245.643 LINK
0.1317%
52
Gemini
LINK-USD$25.32
0.0076370 Eth
$381,620.00
15,068.907 LINK
0.1151%
53
BigONE
LINK-USDT$25.28
0.0076355 Eth
$373,275.00
14,767.360 LINK
0.1128%
54
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$25.44
0.0076712 Eth
$371,748.00
30,292.425 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2313%
55
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.27
0.0076209 Eth
$371,658.00
14,742.253 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1126%
56
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.38
0.0076567 Eth
$343,091.00
13,592.389 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1038%
57
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$25.38
0.0076567 Eth
$317,981.00
316,478.108 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.4168%
58
BitMart
LINK-BTC$25.31
0.0076351 Eth
$303,049.00
11,973.180 LINK
0.0914%
59
QMall
LINK-USDC$25.34
0.0076449 Eth
$294,078.00
11,602.632 LINK
0.0886%
60
LATOKEN
LINK-BTC$25.32
0.0076369 Eth
$267,438.00
10,561.560 LINK
0.0807%
61
Coinbase Exchange
LINK-BTC$25.30
0.0076324 Eth
$263,224.00
10,403.640 LINK
0.0794%
62
Slex
LINK-ETH$25.33
0.0076401 Eth
$263,201.00
10,458.430 LINK
0.0799%
63
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$25.38
0.0076565 Eth
$221,102.00
8,748.949 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0668%
64
BitStorage
LINK-ETH$25.38
0.0076529 Eth
$208,888.00
8,231.090 LINK
0.0629%
65
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$25.36
0.0076499 Eth
$183,750.00
7,264.539 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0555%
66
GMO Japan
LINK-JPY$25.30
0.0076300 Eth
$165,692.00
6,548.600 LINK
0.0500%
67
Bitso
LINK-USD$25.38
0.0076521 Eth
$147,637.00
5,818.181 LINK
0.0444%
68
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$25.25
0.0076199 Eth
$111,308.00
4,399.869 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0336%
69
BitMart
LINK-ETH$25.33
0.0076411 Eth
$95,825.00
3,782.960 LINK
0.0289%
70
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$25.30
0.0076317 Eth
$93,932.00
3,725.986 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0285%
71
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$25.25
0.0076136 Eth
$91,035.00
91,014.668 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.6950%
72
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$25.26
0.0076191 Eth
$86,234.00
3,418.779 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0261%
73
Hotcoin
LINK-BTC$25.29
0.0076357 Eth
$79,742.00
3,152.700 LINK
0.0241%
74
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$25.17
0.0075888 Eth
$61,288.00
2,428.763 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0185%
75
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$25.36
0.0076513 Eth
$49,018.00
48,852.358 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.3731%
76
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$25.27
0.0076222 Eth
$40,784.00
1,610.245 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0123%
77
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$25.08
0.0075670 Eth
$33,244.00
1,288.201 0X5947BB275C521040051D82396192181B413227A3
0.0098%
78
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6$25.18
0.0075960 Eth
$30,067.00
1,189.926 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0091%
79
Dex-Trade
LINK-ETH$25.33
0.0076375 Eth
$27,257.00
1,076.240 LINK
0.0082%
80
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$25.17
0.0075894 Eth
$24,401.00
963.649 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0074%
81
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$25.25
0.0076199 Eth
$23,036.00
917.194 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0070%
82
Hotcoin
LINK-ETH$25.34
0.0076433 Eth
$22,925.00
904.610 LINK
0.0069%
83
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F$25.23
0.0076095 Eth
$22,911.00
910.823 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0070%
84
THENA FUSION
0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD$25.33
0.0076400 Eth
$20,248.00
26.899 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827
0.0002%
85
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955$25.33
0.0076425 Eth
$18,916.87
746.886 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0057%
86
Pangolin
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$25.34
0.0076413 Eth
$16,349.52
635.121 0X5947BB275C521040051D82396192181B413227A3
0.0049%
87
Uniswap V3 (Arbitrum One)
0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$25.25
0.0076184 Eth
$9,682.72
29.215 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196
0.0002%
88
Bitexen
LINK-TRY$25.20
0.0076015 Eth
$5,795.88
229.973 LINK
0.0018%
89
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B$25.29
0.0076341 Eth
$5,016.03
200.409 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0015%
90
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$25.25
0.0076184 Eth
$4,528.14
4,525.126 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.0346%
91
CoinEx
LINK-USDC$25.31
0.0076338 Eth
$3,708.08
145.998 LINK
0.0011%
92
PancakeSwap V3 (Arbitrum)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$25.39
0.0076570 Eth
$3,269.98
129.491 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0010%
93
CoinEx
LINK-BTC$25.31
0.0076334 Eth
$2,738.31
108.162 LINK
0.0008%
94
Ace
LINK-USDT$25.33
0.0076379 Eth
$2,682.40
106.150 LINK
0.0008%
95
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$25.25
0.0076182 Eth
$2,341.49
93.124 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0007%
96
Lydia Finance
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$25.21
0.0076046 Eth
$2,143.60
83.085 0X5947BB275C521040051D82396192181B413227A3
0.0006%
97
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$25.17
0.0075894 Eth
$1,912.80
75.756 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0006%
98
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC3C7D422809852031B44AB29EEC9F1EFF2A58756$25.33
0.0076474 Eth
$1,527.15
57.715 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0004%
99
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D$25.16
0.0075875 Eth
$1,359.81
53.574 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0004%
100
Retro
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.25
0.0076166 Eth
$796.75
31.696 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
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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