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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
720,970 ( 0.010%)
Market
Price
$12.15 @ 0.004603 ETH (+0.16%)
Onchain Market Cap
$12,150,000,000.00
Circulating Supply Market Cap
$7,614,541,489.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
22.88587514173449055 LINKValue
$278.06 ( ~0.10534067984161 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | LBank | LINK-USDT | $12.14 0.0046024 Eth | $38,414,419.00 3,164,617.180 LINK | 18.1139% |
2 | Binance | LINK-USDT | $12.16 0.0046031 Eth | $22,779,153.00 1,894,348.220 LINK | 10.8430% |
3 | Coinbase Exchange | LINK-USD | $12.15 0.0046056 Eth | $15,844,216.00 1,303,836.070 LINK | 7.4630% |
4 | Bybit | LINK-USDT | $12.16 0.0046076 Eth | $14,387,125.00 1,195,187.032 LINK | 6.8411% |
5 | WhiteBIT | LINK-USDT | $12.15 0.0046059 Eth | $14,095,143.00 1,159,790.250 LINK | 6.6385% |
6 | HTX | LINK-USDT | $12.15 0.0046056 Eth | $13,532,973.00 1,124,212.354 LINK | 6.4348% |
7 | Websea | LINK-USDT | $12.15 0.0046064 Eth | $10,076,827.00 0.000 LINK | 0.0000% |
8 | Bitget | LINK-USDT | $12.17 0.0046128 Eth | $9,183,857.00 762,240.345 LINK | 4.3630% |
9 | WEEX | LINK-USDT | $12.15 0.0046060 Eth | $5,482,932.00 455,680.350 LINK | 2.6083% |
10 | Biconomy.com | LINK-USDT | $12.14 0.0046017 Eth | $4,862,402.00 403,644.853 LINK | 2.3104% |
11 | P2B | LINK-USDT | $12.14 0.0046014 Eth | $4,663,103.00 384,232.030 LINK | 2.1993% |
12 | Azbit | LINK-USDT | $12.16 0.0046078 Eth | $4,635,895.00 385,116.830 LINK | 2.2044% |
13 | Slex | LINK-USDT | $12.15 0.0046048 Eth | $3,862,461.00 320,945.290 LINK | 1.8370% |
14 | BVOX | LINK-USDT | $12.14 0.0046034 Eth | $3,826,172.00 317,821.890 LINK | 1.8192% |
15 | OKX | LINK-USDT | $12.16 0.0046077 Eth | $3,396,862.00 282,574.424 LINK | 1.6174% |
16 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.22 0.0046324 Eth | $2,961,204.00 243,638.172 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.3946% |
17 | DigiFinex | LINK-USDT | $12.16 0.0046076 Eth | $2,929,251.00 240,944.310 LINK | 1.3791% |
18 | KuCoin | LINK-USDT | $12.16 0.0046081 Eth | $2,442,994.00 200,920.910 LINK | 1.1500% |
19 | Deepcoin | LINK-USDT | $12.15 0.0046062 Eth | $2,404,339.00 207,275.440 LINK | 1.1864% |
20 | Crypto.com Exchange | LINK-USDT | $12.15 0.0046067 Eth | $2,146,981.00 176,633.590 LINK | 1.0110% |
21 | XT.COM | LINK-USDT | $12.14 0.0046012 Eth | $2,131,962.00 177,308.740 LINK | 1.0149% |
22 | Trubit | LINK-USDT | $12.15 0.0046052 Eth | $2,079,014.00 172,549.260 LINK | 0.9876% |
23 | Upbit | LINK-KRW | $12.15 0.0046066 Eth | $2,067,129.00 170,069.573 LINK | 0.9735% |
24 | Gate.io | LINK-USDT | $12.15 0.0046063 Eth | $1,892,332.00 157,585.300 LINK | 0.9020% |
25 | AscendEX (BitMax) | LINK-USDT | $12.17 0.0046107 Eth | $1,736,385.00 142,729.100 LINK | 0.8170% |
26 | CoinW | LINK-USDT | $12.14 0.0045997 Eth | $1,687,419.00 139,037.090 LINK | 0.7958% |
27 | C-Patex | LINK-USDT | $12.14 0.0046018 Eth | $1,687,186.00 138,986.472 LINK | 0.7955% |
28 | Coinstore | LINK-USDT | $12.14 0.0046016 Eth | $1,661,375.00 138,148.900 LINK | 0.7907% |
29 | WhiteBIT | LINK-BTC | $12.15 0.0046029 Eth | $1,602,906.00 131,979.270 LINK | 0.7554% |
30 | Kraken | LINK-USD | $12.15 0.0046040 Eth | $1,361,729.00 112,094.344 LINK | 0.6416% |
31 | HashKey Global | LINK-USDT | $12.15 0.0046029 Eth | $1,354,962.00 112,170.592 LINK | 0.6420% |
32 | BYDFi | LINK-USDT | $12.16 0.0046046 Eth | $1,091,804.00 89,795.460 LINK | 0.5140% |
33 | Bitexen | LINK-TRY | $12.13 0.0045990 Eth | $1,026,763.00 84,625.060 LINK | 0.4844% |
34 | Bitexen | LINK-USDT | $12.14 0.0046004 Eth | $969,743.00 79,901.980 LINK | 0.4573% |
35 | FMCPAY | LINK-USDT | $12.15 0.0046048 Eth | $969,147.00 80,562.474 LINK | 0.4611% |
36 | Bitvavo | LINK-EUR | $12.14 0.0046025 Eth | $940,968.00 77,499.112 LINK | 0.4436% |
37 | FMFW.io | LINK-USDT | $12.16 0.0046081 Eth | $929,049.00 76,408.450 LINK | 0.4374% |
38 | Crypto.com Exchange | LINK-USD | $12.16 0.0046075 Eth | $926,919.00 76,258.260 LINK | 0.4365% |
39 | HitBTC | LINK-USDT | $12.16 0.0046082 Eth | $919,893.00 76,408.450 LINK | 0.4374% |
40 | Azbit | LINK-ETH | $12.16 0.0046077 Eth | $884,517.00 72,942.112 LINK | 0.4175% |
41 | Dex-Trade | LINK-USDT | $12.15 0.0046054 Eth | $770,187.00 63,396.470 LINK | 0.3629% |
42 | Bithumb | LINK-KRW | $12.16 0.0046093 Eth | $702,182.00 57,734.874 LINK | 0.3305% |
43 | CoinEx | LINK-USDT | $12.16 0.0046074 Eth | $607,681.00 50,263.352 LINK | 0.2877% |
44 | BigONE | LINK-USDT | $12.13 0.0045974 Eth | $589,380.00 48,585.840 LINK | 0.2781% |
45 | FMCPAY | LINK-BTC | $12.14 0.0046017 Eth | $564,976.00 46,768.200 LINK | 0.2677% |
46 | tanX | LINK-USDC | $12.17 0.0046057 Eth | $536,363.00 44,601.650 LINK | 0.2553% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.15 0.0046072 Eth | $522,115.00 43,609.195 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2496% |
48 | Bybit | LINK-USDC | $12.15 0.0046055 Eth | $494,562.00 41,109.132 LINK | 0.2353% |
49 | FMCPAY | LINK-ETH | $12.16 0.0046111 Eth | $454,527.00 37,359.840 LINK | 0.2138% |
50 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.14 0.0046008 Eth | $426,806.00 35,341.052 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2023% |
51 | Gemini | LINK-USD | $12.16 0.0046083 Eth | $344,875.00 28,363.794 LINK | 0.1624% |
52 | PointPay | LINK-USDT | $12.16 0.0046091 Eth | $336,178.00 27,962.992 LINK | 0.1601% |
53 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.21 0.0046268 Eth | $324,704.00 26,776.547 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1533% |
54 | EXMO | LINK-USDT | $12.15 0.0046053 Eth | $283,147.00 23,305.480 LINK | 0.1334% |
55 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.13 0.0045958 Eth | $272,799.00 22,462.542 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1286% |
56 | Phemex | LINK-USDT | $12.15 0.0046049 Eth | $259,372.00 21,349.870 LINK | 0.1222% |
57 | AscendEX (BitMax) | LINK-USD | $12.16 0.0046071 Eth | $208,118.00 17,120.600 LINK | 0.0980% |
58 | BitMart | LINK-BTC | $12.16 0.0046072 Eth | $184,204.00 15,152.400 LINK | 0.0867% |
59 | LATOKEN | LINK-BTC | $12.15 0.0046062 Eth | $169,621.00 13,958.228 LINK | 0.0799% |
60 | BitDelta | LINK-USDT | $12.14 0.0046004 Eth | $152,778.00 12,691.000 LINK | 0.0726% |
61 | BYDFi | LINK-USDC | $12.15 0.0046050 Eth | $132,580.00 10,907.810 LINK | 0.0624% |
62 | Coinbase Exchange | LINK-GBP | $12.14 0.0046035 Eth | $120,300.00 9,905.900 LINK | 0.0567% |
63 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $12.11 0.0045885 Eth | $104,166.00 8,608.825 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0493% |
64 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.17 0.0046137 Eth | $84,364.00 6,997.421 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0401% |
65 | Slex | LINK-BTC | $12.17 0.0046109 Eth | $80,543.00 6,655.700 LINK | 0.0381% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.14 0.0046004 Eth | $69,969.00 69,318.156 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.3968% |
67 | WhiteBIT | LINK-TRY | $12.15 0.0046050 Eth | $68,931.00 5,675.400 LINK | 0.0325% |
68 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.16 0.0046111 Eth | $68,243.00 67,175.438 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3845% |
69 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.14 0.0046032 Eth | $67,435.00 5,548.290 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0318% |
70 | Slex | LINK-ETH | $12.14 0.0046018 Eth | $57,168.00 4,711.980 LINK | 0.0270% |
71 | OKX | LINK-USDC | $12.17 0.0046141 Eth | $44,761.00 3,736.317 LINK | 0.0214% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.14 0.0046004 Eth | $42,760.00 3,559.257 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0204% |
73 | GMO Japan | LINK-JPY | $12.18 0.0046171 Eth | $34,011.00 2,792.900 LINK | 0.0160% |
74 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $12.11 0.0045898 Eth | $29,931.00 2,503.011 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0143% |
75 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.19 0.0046190 Eth | $29,479.00 29,074.429 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1664% |
76 | Bitso | LINK-USD | $12.17 0.0046141 Eth | $26,454.00 2,173.237 LINK | 0.0124% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.19 0.0046210 Eth | $22,326.00 1,863.438 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0107% |
78 | EXMO | LINK-BTC | $12.17 0.0046113 Eth | $21,623.00 1,777.193 LINK | 0.0102% |
79 | Binance US | LINK-USDT | $12.16 0.0046092 Eth | $19,619.01 1,613.573 LINK | 0.0092% |
80 | KuCoin | LINK-KCS | $12.14 0.0045996 Eth | $17,321.38 1,427.213 LINK | 0.0082% |
81 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.18 0.0046184 Eth | $16,949.96 1,395.427 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0080% |
82 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $12.17 0.0046123 Eth | $15,563.91 1,278.761 0X5947BB275C521040051D82396192181B413227A3 | 0.0073% |
83 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $12.09 0.0045826 Eth | $11,524.56 957.022 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0055% |
84 | Coinone | LINK-KRW | $12.17 0.0046123 Eth | $8,957.59 736.053 LINK | 0.0042% |
85 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X68F180FCCE6836688E9084F035309E29BF0A2095 | $12.16 0.0046091 Eth | $8,027.50 692.779 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0040% |
86 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.14 0.0046007 Eth | $7,551.67 7,436.894 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0426% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $12.15 0.0046042 Eth | $6,768.02 559.960 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0032% |
88 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $12.16 0.0046085 Eth | $5,987.05 490.230 0X5947BB275C521040051D82396192181B413227A3 | 0.0028% |
89 | Ramses V2 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.15 0.0046069 Eth | $5,198.67 429.701 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0025% |
90 | CoinEx | LINK-USDC | $12.20 0.0046237 Eth | $4,454.48 370.265 LINK | 0.0021% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $12.16 0.0046110 Eth | $3,764.82 313.062 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0018% |
92 | CoinEx | LINK-BTC | $12.13 0.0045992 Eth | $3,130.54 259.363 LINK | 0.0015% |
93 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.19 0.0046185 Eth | $2,080.89 173.335 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0010% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $12.13 0.0045991 Eth | $1,636.35 136.107 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0008% |
95 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.16 0.0046085 Eth | $1,612.96 133.170 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0008% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $12.19 0.0046224 Eth | $954.56 78.447 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0004% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $12.14 0.0045949 Eth | $702.10 57.673 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0003% |
98 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.14 0.0045949 Eth | $514.57 506.745 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0029% |
99 | Solidly V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.15 0.0046039 Eth | $275.33 22.688 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0001% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $12.12 0.0045876 Eth | $147.29 11.959 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
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
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"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"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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