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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,672 ( 0.041%)
Market
Price
$21.93 @ 0.006468 ETH (-3.01%)
Onchain Market Cap
$21,930,000,000.00
Circulating Supply Market Cap
$13,836,631,016.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
258.03794826 LINKValue
$5,658.77 ( ~1.6690 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $21.92 0.0064788 Eth | $113,793,674.00 5,280,354.320 LINK | 20.8812% |
2 | Coinbase Exchange | LINK-USD | $21.89 0.0064570 Eth | $48,442,791.00 2,212,605.760 LINK | 8.7498% |
3 | Bybit | LINK-USDT | $21.90 0.0064594 Eth | $38,888,629.00 1,802,275.586 LINK | 7.1271% |
4 | WhiteBIT | LINK-USDT | $21.91 0.0064708 Eth | $24,303,173.00 1,109,143.730 LINK | 4.3861% |
5 | P2B | LINK-USDT | $21.91 0.0064703 Eth | $24,144,011.00 1,101,855.290 LINK | 4.3573% |
6 | Slex | LINK-USDT | $21.92 0.0064775 Eth | $21,327,982.00 990,622.240 LINK | 3.9174% |
7 | CoinW | LINK-USDT | $21.91 0.0064717 Eth | $21,085,235.00 962,351.430 LINK | 3.8056% |
8 | MEXC | LINK-USDT | $21.92 0.0064788 Eth | $21,027,326.00 959,148.620 LINK | 3.7930% |
9 | OKX | LINK-USDT | $21.90 0.0064594 Eth | $19,473,340.00 903,359.340 LINK | 3.5723% |
10 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.93 0.0064672 Eth | $16,360,697.00 745,943.935 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.9498% |
11 | DigiFinex | LINK-USDT | $21.91 0.0064613 Eth | $15,094,327.00 689,046.670 LINK | 2.7248% |
12 | FameEX | LINK-USDT | $21.92 0.0064773 Eth | $11,358,396.00 527,030.998 LINK | 2.0841% |
13 | XT.COM | LINK-USDT | $21.96 0.0064779 Eth | $11,328,944.00 525,828.100 LINK | 2.0794% |
14 | Azbit | LINK-USDT | $21.90 0.0064726 Eth | $11,320,979.00 525,373.863 LINK | 2.0776% |
15 | Coinstore | LINK-USDT | $21.92 0.0064796 Eth | $10,350,055.00 480,630.480 LINK | 1.9007% |
16 | HTX | LINK-USDT | $21.91 0.0064631 Eth | $9,571,145.00 444,845.488 LINK | 1.7591% |
17 | Bitunix | LINK-USDT | $21.91 0.0064689 Eth | $9,485,323.00 432,879.750 LINK | 1.7118% |
18 | Bitstamp | LINK-EUR | $21.94 0.0064714 Eth | $9,205,303.00 419,557.507 LINK | 1.6591% |
19 | BYDFi | LINK-USDT | $21.94 0.0064720 Eth | $7,563,659.00 344,726.050 LINK | 1.3632% |
20 | Biconomy.com | LINK-USDT | $21.92 0.0064715 Eth | $6,922,989.00 321,314.402 LINK | 1.2706% |
21 | Binance | LINK-FDUSD | $21.97 0.0064886 Eth | $6,447,689.00 298,401.260 LINK | 1.1800% |
22 | KuCoin | LINK-USDT | $21.94 0.0064708 Eth | $6,326,246.00 288,364.199 LINK | 1.1403% |
23 | LATOKEN | LINK-USDT | $21.92 0.0064770 Eth | $5,440,452.00 248,173.825 LINK | 0.9814% |
24 | LBank | LINK-USDT | $21.96 0.0064801 Eth | $4,820,774.00 219,511.010 LINK | 0.8681% |
25 | QMall | LINK-USDT | $21.90 0.0064674 Eth | $4,666,326.00 216,697.900 LINK | 0.8569% |
26 | Binance | LINK-USDC | $21.90 0.0064595 Eth | $4,321,690.00 200,962.410 LINK | 0.7947% |
27 | Dex-Trade | LINK-USDT | $21.93 0.0064808 Eth | $3,887,595.00 177,276.124 LINK | 0.7010% |
28 | Kraken | LINK-USD | $21.95 0.0064734 Eth | $3,805,913.00 173,422.204 LINK | 0.6858% |
29 | Bitvavo | LINK-EUR | $21.90 0.0064714 Eth | $3,518,795.00 160,684.414 LINK | 0.6354% |
30 | Coinbase Exchange | LINK-GBP | $21.91 0.0064726 Eth | $2,797,913.00 127,682.770 LINK | 0.5049% |
31 | CoinEx | LINK-USDT | $21.95 0.0064752 Eth | $2,580,266.00 119,809.105 LINK | 0.4738% |
32 | Bybit | LINK-USDC | $21.92 0.0064647 Eth | $2,494,967.00 116,406.310 LINK | 0.4603% |
33 | Hotcoin | LINK-USDT | $21.94 0.0064724 Eth | $2,411,081.00 109,880.530 LINK | 0.4345% |
34 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.89 0.0064584 Eth | $2,276,380.00 103,427.411 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4090% |
35 | Dcoin | LINK-USDT | $21.89 0.0064692 Eth | $2,133,055.00 97,432.000 LINK | 0.3853% |
36 | PointPay | LINK-USDT | $22.11 0.0065211 Eth | $1,847,166.00 85,794.210 LINK | 0.3393% |
37 | Kraken | LINK-USDT | $21.90 0.0064602 Eth | $1,764,942.00 80,586.760 LINK | 0.3187% |
38 | Coinbase Exchange | LINK-EUR | $21.91 0.0064715 Eth | $1,730,732.00 78,995.620 LINK | 0.3124% |
39 | EXMO | LINK-USDT | $21.98 0.0064824 Eth | $1,710,043.00 77,812.306 LINK | 0.3077% |
40 | Coinbase Exchange | LINK-ETH | $21.93 0.0064767 Eth | $1,708,366.00 77,888.230 LINK | 0.3080% |
41 | Phemex | LINK-USDT | $21.93 0.0064817 Eth | $1,396,430.00 63,668.540 LINK | 0.2518% |
42 | tanX | LINK-USDC | $21.93 0.0064763 Eth | $1,003,245.00 46,530.680 LINK | 0.1840% |
43 | Coinbase Exchange | LINK-USDT | $21.94 0.0064720 Eth | $982,773.00 44,791.465 LINK | 0.1771% |
44 | WhiteBIT | LINK-BTC | $21.91 0.0064689 Eth | $963,822.00 43,999.790 LINK | 0.1740% |
45 | BitStorage | LINK-USDT | $21.93 0.0064800 Eth | $930,907.00 42,445.280 LINK | 0.1679% |
46 | Binance | LINK-TRY | $22.01 0.0065031 Eth | $921,522.00 42,377.270 LINK | 0.1676% |
47 | EarnBIT | LINK-USDT | $21.83 0.0064496 Eth | $910,277.00 42,330.749 LINK | 0.1674% |
48 | Bitbank | LINK-JPY | $21.99 0.0064942 Eth | $780,100.00 35,470.269 LINK | 0.1403% |
49 | WhiteBIT | LINK-TRY | $22.02 0.0065029 Eth | $772,622.00 35,086.950 LINK | 0.1388% |
50 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.90 0.0064606 Eth | $770,645.00 35,171.145 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1391% |
51 | GMO Japan | LINK-JPY | $22.07 0.0065095 Eth | $740,129.00 33,538.200 LINK | 0.1326% |
52 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.09 0.0065181 Eth | $646,257.00 29,077.736 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1150% |
53 | Gemini | LINK-USD | $21.95 0.0064746 Eth | $528,679.00 24,084.345 LINK | 0.0952% |
54 | itBit | LINK-USD | $21.93 0.0064720 Eth | $525,206.00 23,949.194 LINK | 0.0947% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.89 0.0064578 Eth | $494,311.00 22,641.709 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0895% |
56 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.92 0.0064661 Eth | $478,542.00 35,528.310 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1405% |
57 | BitMart | LINK-BTC | $21.92 0.0064653 Eth | $400,333.00 18,263.560 LINK | 0.0722% |
58 | Slex | LINK-ETH | $21.92 0.0064679 Eth | $381,598.00 17,515.850 LINK | 0.0693% |
59 | Coinbase Exchange | LINK-BTC | $21.94 0.0064738 Eth | $369,646.00 16,844.360 LINK | 0.0666% |
60 | BigONE | LINK-USDT | $21.94 0.0064724 Eth | $363,774.00 16,578.490 LINK | 0.0656% |
61 | OKX | LINK-USDC | $21.90 0.0064600 Eth | $317,151.00 14,774.620 LINK | 0.0584% |
62 | WhiteBIT | LINK-EUR | $21.97 0.0064903 Eth | $308,954.00 14,061.390 LINK | 0.0556% |
63 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.89 0.0064603 Eth | $299,509.00 296,837.398 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.1738% |
64 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.85 0.0064469 Eth | $278,907.00 12,731.918 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0503% |
65 | LATOKEN | LINK-BTC | $21.89 0.0064639 Eth | $267,537.00 12,222.945 LINK | 0.0483% |
66 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $22.04 0.0065002 Eth | $248,112.00 11,395.558 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0451% |
67 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.84 0.0064433 Eth | $223,797.00 221,497.043 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.8759% |
68 | Bitci TR | LINK-TRY | $22.11 0.0065191 Eth | $220,505.00 10,181.940 LINK | 0.0403% |
69 | BitStorage | LINK-ETH | $21.91 0.0064649 Eth | $218,471.00 9,973.180 LINK | 0.0394% |
70 | KuCoin | LINK-USDC | $21.94 0.0064722 Eth | $204,098.00 9,301.247 LINK | 0.0368% |
71 | PointPay | LINK-BTC | $22.10 0.0065159 Eth | $203,198.00 9,401.355 LINK | 0.0372% |
72 | BitMart | LINK-ETH | $21.92 0.0064655 Eth | $180,065.00 8,215.040 LINK | 0.0325% |
73 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $22.04 0.0065018 Eth | $168,959.00 7,724.003 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0305% |
74 | Kraken | LINK-GBP | $21.90 0.0064592 Eth | $160,533.00 7,330.982 LINK | 0.0290% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.84 0.0064457 Eth | $143,149.00 6,543.717 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0259% |
76 | Bitso | LINK-USD | $21.88 0.0064573 Eth | $142,881.00 6,530.209 LINK | 0.0258% |
77 | Mercado Bitcoin | LINK-BRL | $22.10 0.0065217 Eth | $100,898.00 4,565.001 LINK | 0.0181% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.89 0.0064556 Eth | $94,847.00 4,331.680 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0171% |
79 | Binance US | LINK-USDT | $21.94 0.0064721 Eth | $89,681.00 4,087.012 LINK | 0.0162% |
80 | EXMO | LINK-BTC | $22.12 0.0065239 Eth | $88,340.00 3,994.160 LINK | 0.0158% |
81 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.93 0.0064715 Eth | $85,318.00 3,900.916 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0154% |
82 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.93 0.0064691 Eth | $82,749.00 3,825.001 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0151% |
83 | Hotcoin | LINK-BTC | $21.93 0.0064698 Eth | $81,457.00 3,713.750 LINK | 0.0147% |
84 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $21.88 0.0064598 Eth | $74,721.00 3,363.166 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0133% |
85 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.90 0.0064585 Eth | $57,282.00 57,033.619 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2255% |
86 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $22.05 0.0065030 Eth | $56,550.00 2,588.084 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0102% |
87 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.92 0.0064661 Eth | $51,149.00 3,797.177 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0150% |
88 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $22.04 0.0065022 Eth | $49,626.00 2,221.781 0X5947BB275C521040051D82396192181B413227A3 | 0.0088% |
89 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $22.06 0.0065080 Eth | $42,799.00 1,956.448 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0077% |
90 | Bitexen | LINK-TRY | $21.80 0.0064368 Eth | $40,070.00 1,838.192 LINK | 0.0073% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $21.92 0.0064680 Eth | $31,221.00 1,428.943 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0057% |
92 | Hotcoin | LINK-ETH | $21.95 0.0064821 Eth | $27,983.00 1,274.650 LINK | 0.0050% |
93 | zondacrypto | LINK-USDC | $21.91 0.0064668 Eth | $21,584.00 985.125 LINK | 0.0039% |
94 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $21.93 0.0064698 Eth | $18,909.69 24.456 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $21.88 0.0064568 Eth | $16,466.82 757.878 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0030% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $21.85 0.0064468 Eth | $14,189.49 653.667 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0026% |
97 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.92 0.0064753 Eth | $13,715.16 13,512.076 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0534% |
98 | Biswap V3 | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $21.89 0.0064600 Eth | $9,201.52 412.989 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0016% |
99 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $21.93 0.0064686 Eth | $8,399.16 388.199 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0015% |
100 | Ace | LINK-USDT | $21.91 0.0064694 Eth | $4,457.34 206.670 LINK | 0.0008% |
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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