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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
721,443 ( -0.004%)
Market
Price
$11.66 @ 0.004689 ETH (+3.07%)
Onchain Market Cap
$11,660,000,000.00
Circulating Supply Market Cap
$7,306,411,281.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | LBank | LINK-USDT | $11.61 0.0046691 Eth | $32,072,828.00 2,762,915.140 LINK | 17.5174% |
2 | Binance | LINK-USDT | $11.65 0.0046739 Eth | $21,286,412.00 1,875,689.220 LINK | 11.8922% |
3 | Coinbase Exchange | LINK-USD | $11.60 0.0046655 Eth | $15,521,493.00 1,338,059.720 LINK | 8.4836% |
4 | WhiteBIT | LINK-USDT | $11.61 0.0046708 Eth | $11,017,151.00 948,662.000 LINK | 6.0147% |
5 | Bybit | LINK-USDT | $11.61 0.0046697 Eth | $10,405,494.00 916,717.015 LINK | 5.8122% |
6 | Bitget | LINK-USDT | $11.59 0.0046630 Eth | $8,873,705.00 783,775.773 LINK | 4.9693% |
7 | HTX | LINK-USDT | $11.60 0.0046679 Eth | $7,989,408.00 704,986.158 LINK | 4.4698% |
8 | Azbit | LINK-USDT | $11.61 0.0046686 Eth | $5,339,598.00 471,529.620 LINK | 2.9896% |
9 | P2B | LINK-USDT | $11.63 0.0046702 Eth | $4,556,520.00 391,860.560 LINK | 2.4845% |
10 | WEEX | LINK-USDT | $11.61 0.0046682 Eth | $4,369,861.00 384,858.000 LINK | 2.4401% |
11 | BVOX | LINK-USDT | $11.60 0.0046662 Eth | $4,299,645.00 378,788.260 LINK | 2.4016% |
12 | Slex | LINK-USDT | $11.60 0.0046664 Eth | $3,742,257.00 329,824.200 LINK | 2.0912% |
13 | Biconomy.com | LINK-USDT | $11.61 0.0046708 Eth | $3,367,856.00 297,229.000 LINK | 1.8845% |
14 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.58 0.0046559 Eth | $3,291,970.00 285,456.800 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.8099% |
15 | OKX | LINK-USDT | $11.61 0.0046701 Eth | $3,054,199.00 268,583.839 LINK | 1.7029% |
16 | DigiFinex | LINK-USDT | $11.60 0.0046669 Eth | $2,787,072.00 240,173.560 LINK | 1.5227% |
17 | Trubit | LINK-USDT | $11.63 0.0046668 Eth | $2,719,224.00 239,514.220 LINK | 1.5186% |
18 | KuCoin | LINK-USDT | $11.61 0.0046705 Eth | $2,283,292.00 196,656.627 LINK | 1.2468% |
19 | Deepcoin | LINK-USDT | $11.60 0.0046655 Eth | $2,246,083.00 193,978.180 LINK | 1.2299% |
20 | Upbit | LINK-KRW | $11.57 0.0046536 Eth | $2,154,103.00 186,158.325 LINK | 1.1803% |
21 | XT.COM | LINK-USDT | $11.61 0.0046691 Eth | $2,041,299.00 179,795.740 LINK | 1.1399% |
22 | AscendEX (BitMax) | LINK-USDT | $11.62 0.0046755 Eth | $1,760,724.00 151,460.700 LINK | 0.9603% |
23 | CoinW | LINK-USDT | $11.61 0.0046715 Eth | $1,645,113.00 141,647.990 LINK | 0.8981% |
24 | C-Patex | LINK-USDT | $11.63 0.0046758 Eth | $1,497,221.00 128,791.407 LINK | 0.8166% |
25 | Gate.io | LINK-USDT | $11.61 0.0046683 Eth | $1,424,066.00 124,918.900 LINK | 0.7920% |
26 | Nonkyc.io | LINK-USDT | $11.67 0.0046950 Eth | $1,357,076.00 119,625.423 LINK | 0.7584% |
27 | Crypto.com Exchange | LINK-USDT | $11.61 0.0046704 Eth | $1,130,959.00 97,411.230 LINK | 0.6176% |
28 | BYDFi | LINK-USDT | $11.59 0.0046601 Eth | $1,079,643.00 93,172.180 LINK | 0.5907% |
29 | Azbit | LINK-ETH | $11.62 0.0046724 Eth | $975,779.00 84,736.527 LINK | 0.5372% |
30 | Bitvavo | LINK-EUR | $11.63 0.0046673 Eth | $930,379.00 80,001.560 LINK | 0.5072% |
31 | Hotcoin | LINK-USDT | $11.61 0.0046691 Eth | $895,438.00 77,139.200 LINK | 0.4891% |
32 | FMCPAY | LINK-USDT | $11.63 0.0046694 Eth | $874,158.00 77,100.238 LINK | 0.4888% |
33 | HashKey Global | LINK-USDT | $11.65 0.0046752 Eth | $774,757.00 68,647.325 LINK | 0.4352% |
34 | Dex-Trade | LINK-USDT | $11.62 0.0046626 Eth | $742,076.00 63,870.850 LINK | 0.4050% |
35 | Kraken | LINK-USD | $11.61 0.0046710 Eth | $681,838.00 58,720.034 LINK | 0.3723% |
36 | FMFW.io | LINK-USDT | $11.61 0.0046706 Eth | $640,215.00 55,139.860 LINK | 0.3496% |
37 | MEXC | LINK-USDT | $11.61 0.0046705 Eth | $635,587.00 54,732.880 LINK | 0.3470% |
38 | HitBTC | LINK-USDT | $11.66 0.0046826 Eth | $624,578.00 55,135.950 LINK | 0.3496% |
39 | LATOKEN | LINK-USDT | $11.63 0.0046676 Eth | $597,811.00 51,412.607 LINK | 0.3260% |
40 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.56 0.0046418 Eth | $589,749.00 51,406.536 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3259% |
41 | WhiteBIT | LINK-BTC | $11.63 0.0046765 Eth | $518,418.00 44,585.550 LINK | 0.2827% |
42 | tanX | LINK-USDC | $11.59 0.0046598 Eth | $505,810.00 44,607.520 LINK | 0.2828% |
43 | CoinEx | LINK-USDT | $11.62 0.0046715 Eth | $455,713.00 40,296.108 LINK | 0.2555% |
44 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.63 0.0046784 Eth | $444,461.00 38,640.655 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2450% |
45 | Bithumb | LINK-KRW | $11.57 0.0046551 Eth | $414,403.00 35,809.887 LINK | 0.2270% |
46 | FMCPAY | LINK-ETH | $11.64 0.0046737 Eth | $411,902.00 35,734.240 LINK | 0.2266% |
47 | EXMO | LINK-USDT | $11.60 0.0046671 Eth | $382,084.00 32,926.714 LINK | 0.2088% |
48 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.65 0.0046851 Eth | $365,421.00 31,854.778 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2020% |
49 | PointPay | LINK-USDT | $11.61 0.0046705 Eth | $356,492.00 31,439.169 LINK | 0.1993% |
50 | BigONE | LINK-USDT | $11.60 0.0046654 Eth | $283,646.00 24,454.340 LINK | 0.1550% |
51 | WhiteBIT | LINK-EUR | $11.57 0.0046526 Eth | $269,094.00 23,261.910 LINK | 0.1475% |
52 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.55 0.0046452 Eth | $249,139.00 21,707.100 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1376% |
53 | Phemex | LINK-USDT | $11.62 0.0046662 Eth | $231,860.00 19,957.150 LINK | 0.1265% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.66 0.0046916 Eth | $193,221.00 16,708.321 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1059% |
55 | Bybit | LINK-USDC | $11.62 0.0046730 Eth | $190,653.00 16,722.724 LINK | 0.1060% |
56 | BitMart | LINK-BTC | $11.66 0.0046824 Eth | $180,175.00 15,454.640 LINK | 0.0980% |
57 | Bitbank | LINK-JPY | $11.68 0.0046890 Eth | $151,163.00 12,940.937 LINK | 0.0820% |
58 | Hotcoin | LINK-BTC | $11.60 0.0046675 Eth | $127,900.00 11,021.890 LINK | 0.0699% |
59 | Hotcoin | LINK-ETH | $11.60 0.0046656 Eth | $125,517.00 10,820.860 LINK | 0.0686% |
60 | BitDelta | LINK-USDT | $11.64 0.0046708 Eth | $123,943.00 10,946.000 LINK | 0.0694% |
61 | Bitci TR | LINK-TRY | $11.59 0.0046494 Eth | $117,243.00 10,304.500 LINK | 0.0653% |
62 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.60 0.0046571 Eth | $101,356.00 8,847.362 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0561% |
63 | Slex | LINK-BTC | $11.65 0.0046761 Eth | $98,329.00 8,529.100 LINK | 0.0541% |
64 | Coinbase Exchange | LINK-ETH | $11.60 0.0046647 Eth | $90,651.00 7,816.030 LINK | 0.0496% |
65 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.63 0.0046784 Eth | $67,021.00 65,186.822 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.4133% |
66 | Slex | LINK-ETH | $11.63 0.0046776 Eth | $66,293.00 5,758.250 LINK | 0.0365% |
67 | PointPay | LINK-BTC | $11.63 0.0046775 Eth | $66,259.00 5,756.742 LINK | 0.0365% |
68 | BYDFi | LINK-USDC | $11.62 0.0046740 Eth | $63,604.00 5,474.040 LINK | 0.0347% |
69 | Bitget | LINK-EUR | $11.62 0.0046724 Eth | $61,471.00 5,437.270 LINK | 0.0345% |
70 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.66 0.0046916 Eth | $56,489.00 55,071.989 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.3492% |
71 | Coinbase Exchange | LINK-GBP | $11.66 0.0046798 Eth | $56,286.00 4,827.060 LINK | 0.0306% |
72 | WhiteBIT | LINK-TRY | $11.65 0.0046838 Eth | $51,804.00 4,448.340 LINK | 0.0282% |
73 | Bitkub | LINK-THB | $11.62 0.0046659 Eth | $43,359.00 3,732.337 LINK | 0.0237% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.66 0.0046916 Eth | $33,192.00 2,921.142 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0185% |
75 | Bitso | LINK-USD | $11.65 0.0046747 Eth | $33,024.00 2,835.780 LINK | 0.0180% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.66 0.0046916 Eth | $31,300.00 2,722.597 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0173% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.63 0.0046779 Eth | $29,536.00 2,561.861 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0162% |
78 | EXMO | LINK-BTC | $11.62 0.0046752 Eth | $29,332.00 2,523.366 LINK | 0.0160% |
79 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.58 0.0046460 Eth | $26,308.00 25,638.361 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1626% |
80 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.55 0.0046452 Eth | $15,738.63 1,395.057 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0088% |
81 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.58 0.0046503 Eth | $15,416.01 1,334.576 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0085% |
82 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $11.58 0.0046555 Eth | $14,630.77 23.245 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.62 0.0046752 Eth | $9,536.59 838.754 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0053% |
84 | Coinone | LINK-KRW | $11.60 0.0046666 Eth | $7,115.41 613.292 LINK | 0.0039% |
85 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.55 0.0046452 Eth | $4,924.75 4,816.100 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0305% |
86 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.63 0.0046694 Eth | $4,340.61 383.363 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0024% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.66 0.0046816 Eth | $4,319.11 374.544 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0024% |
88 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.56 0.0046508 Eth | $3,944.79 345.877 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0022% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.63 0.0046677 Eth | $2,595.93 224.068 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0014% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.63 0.0046778 Eth | $2,254.16 195.358 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0012% |
91 | CoinEx | LINK-USDC | $11.62 0.0046726 Eth | $2,148.94 189.820 LINK | 0.0012% |
92 | CoinEx | LINK-BTC | $11.58 0.0046589 Eth | $2,133.58 185.801 LINK | 0.0012% |
93 | Ramses V2 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.54 0.0046433 Eth | $1,862.17 162.585 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0010% |
94 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.60 0.0046546 Eth | $1,581.42 137.557 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0009% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.65 0.0046774 Eth | $1,161.50 102.077 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0006% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $11.60 0.0046639 Eth | $901.28 79.180 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0005% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $11.58 0.0046477 Eth | $641.65 56.603 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0004% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $11.64 0.0046720 Eth | $567.94 48.786 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0003% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.63 0.0046680 Eth | $260.52 22.612 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | Uniswap V3 (Arbitrum One) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.56 0.0046422 Eth | $156.76 274.477 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0017% |
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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