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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,391 ( 0.016%)
Market
Price
$21.25 @ 0.006356 ETH (-9.24%)
Onchain Market Cap
$21,250,000,000.00
Circulating Supply Market Cap
$13,421,139,088.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.5 LINKValue
$10.63 ( ~0.00317964791721974 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $21.23 0.0063541 Eth | $103,623,825.00 4,716,100.430 LINK | 21.7370% |
2 | Coinbase Exchange | LINK-USD | $21.26 0.0063661 Eth | $43,138,828.00 2,029,489.470 LINK | 9.3541% |
3 | Bybit | LINK-USDT | $21.22 0.0063530 Eth | $32,035,810.00 1,468,139.000 LINK | 6.7668% |
4 | WhiteBIT | LINK-USDT | $21.25 0.0063639 Eth | $28,189,171.00 1,326,542.080 LINK | 6.1142% |
5 | OKX | LINK-USDT | $21.25 0.0063609 Eth | $20,735,721.00 941,131.911 LINK | 4.3378% |
6 | MEXC | LINK-USDT | $21.23 0.0063536 Eth | $20,212,977.00 952,285.850 LINK | 4.3892% |
7 | CoinW | LINK-USDT | $21.25 0.0063631 Eth | $18,133,680.00 853,509.650 LINK | 3.9339% |
8 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.19 0.0063455 Eth | $14,813,100.00 672,609.780 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 3.1001% |
9 | DigiFinex | LINK-USDT | $21.23 0.0063567 Eth | $13,412,196.00 631,631.840 LINK | 2.9113% |
10 | HTX | LINK-USDT | $21.23 0.0063561 Eth | $10,493,109.00 477,726.356 LINK | 2.2019% |
11 | FameEX | LINK-USDT | $21.24 0.0063575 Eth | $10,351,667.00 471,105.385 LINK | 2.1714% |
12 | Azbit | LINK-USDT | $21.26 0.0063655 Eth | $10,323,039.00 469,774.873 LINK | 2.1652% |
13 | XT.COM | LINK-USDT | $21.23 0.0063546 Eth | $10,221,013.00 464,668.060 LINK | 2.1417% |
14 | Coinstore | LINK-USDT | $21.22 0.0063559 Eth | $9,363,531.00 426,604.970 LINK | 1.9663% |
15 | Bitunix | LINK-USDT | $21.19 0.0063485 Eth | $8,308,287.00 391,960.940 LINK | 1.8066% |
16 | Biconomy.com | LINK-USDT | $21.23 0.0063546 Eth | $7,070,221.00 321,757.772 LINK | 1.4830% |
17 | BYDFi | LINK-USDT | $21.34 0.0063758 Eth | $6,541,608.00 306,471.780 LINK | 1.4126% |
18 | BTSE | LINK-USDT | $21.19 0.0063460 Eth | $5,885,580.00 277,782.977 LINK | 1.2803% |
19 | Binance | LINK-FDUSD | $21.30 0.0063684 Eth | $5,731,159.00 260,293.530 LINK | 1.1997% |
20 | LATOKEN | LINK-USDT | $21.29 0.0063678 Eth | $4,932,880.00 231,653.744 LINK | 1.0677% |
21 | KuCoin | LINK-USDT | $21.24 0.0063592 Eth | $4,636,079.00 218,222.690 LINK | 1.0058% |
22 | LBank | LINK-USDT | $21.18 0.0063437 Eth | $4,524,686.00 213,671.030 LINK | 0.9848% |
23 | QMall | LINK-USDT | $21.26 0.0063632 Eth | $4,194,332.00 191,034.873 LINK | 0.8805% |
24 | Hotcoin | LINK-USDT | $21.21 0.0063517 Eth | $3,997,651.00 188,508.670 LINK | 0.8689% |
25 | Binance | LINK-USDC | $21.23 0.0063543 Eth | $3,946,776.00 179,860.810 LINK | 0.8290% |
26 | Kraken | LINK-USD | $21.25 0.0063610 Eth | $3,681,821.00 173,258.335 LINK | 0.7986% |
27 | Dex-Trade | LINK-USDT | $21.30 0.0063696 Eth | $3,368,922.00 158,154.711 LINK | 0.7290% |
28 | Bitvavo | LINK-EUR | $21.31 0.0063708 Eth | $3,187,623.00 149,615.448 LINK | 0.6896% |
29 | CoinEx | LINK-USDT | $21.19 0.0063486 Eth | $2,410,980.00 110,034.753 LINK | 0.5072% |
30 | Bybit | LINK-USDC | $21.24 0.0063581 Eth | $2,210,905.00 102,889.235 LINK | 0.4742% |
31 | Dcoin | LINK-USDT | $21.25 0.0063595 Eth | $2,135,470.00 100,513.000 LINK | 0.4633% |
32 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.20 0.0063500 Eth | $2,005,317.00 90,892.007 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4189% |
33 | PointPay | LINK-USDT | $21.29 0.0063678 Eth | $1,661,113.00 75,666.173 LINK | 0.3488% |
34 | Coinbase Exchange | LINK-ETH | $21.24 0.0063581 Eth | $1,552,379.00 73,085.820 LINK | 0.3369% |
35 | Coinbase Exchange | LINK-GBP | $21.21 0.0063537 Eth | $1,495,691.00 70,502.030 LINK | 0.3250% |
36 | EXMO | LINK-USDT | $21.24 0.0063563 Eth | $1,477,434.00 69,574.844 LINK | 0.3207% |
37 | Coinbase Exchange | LINK-EUR | $21.27 0.0063712 Eth | $1,362,960.00 64,069.600 LINK | 0.2953% |
38 | Phemex | LINK-USDT | $21.23 0.0063542 Eth | $1,224,572.00 57,693.130 LINK | 0.2659% |
39 | WhiteBIT | LINK-BTC | $21.26 0.0063591 Eth | $1,125,030.00 52,907.920 LINK | 0.2439% |
40 | tanX | LINK-USDC | $21.25 0.0063629 Eth | $1,049,923.00 47,952.110 LINK | 0.2210% |
41 | Coinbase Exchange | LINK-USDT | $21.18 0.0063452 Eth | $1,021,285.00 48,217.236 LINK | 0.2222% |
42 | Kraken | LINK-USDT | $21.24 0.0063573 Eth | $973,781.00 45,850.343 LINK | 0.2113% |
43 | EarnBIT | LINK-USDT | $21.22 0.0063530 Eth | $957,356.00 43,510.237 LINK | 0.2005% |
44 | WhiteBIT | LINK-TRY | $21.37 0.0064001 Eth | $908,163.00 42,495.480 LINK | 0.1959% |
45 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.18 0.0063406 Eth | $831,495.00 37,671.180 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1736% |
46 | BitStorage | LINK-USDT | $21.20 0.0063497 Eth | $803,752.00 37,920.330 LINK | 0.1748% |
47 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $21.14 0.0063312 Eth | $750,018.00 33,751.819 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1556% |
48 | Gemini | LINK-USD | $21.28 0.0063702 Eth | $741,903.00 34,865.471 LINK | 0.1607% |
49 | Bitbank | LINK-JPY | $21.29 0.0063764 Eth | $736,556.00 34,597.320 LINK | 0.1595% |
50 | Binance | LINK-TRY | $21.44 0.0064105 Eth | $691,214.00 31,378.140 LINK | 0.1446% |
51 | BigONE | LINK-USDT | $21.19 0.0063504 Eth | $617,326.00 29,126.870 LINK | 0.1342% |
52 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.19 0.0063455 Eth | $548,984.00 42,706.830 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1968% |
53 | itBit | LINK-USD | $21.27 0.0063669 Eth | $541,208.00 25,444.660 LINK | 0.1173% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.21 0.0063489 Eth | $527,937.00 24,191.992 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1115% |
55 | Binance | LINK-EUR | $21.31 0.0063736 Eth | $509,426.00 22,907.940 LINK | 0.1056% |
56 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $21.17 0.0063394 Eth | $473,037.00 21,320.206 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0983% |
57 | GMO Japan | LINK-JPY | $21.35 0.0063916 Eth | $464,198.00 21,739.500 LINK | 0.1002% |
58 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.18 0.0063406 Eth | $390,838.00 17,591.510 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0811% |
59 | HashKey Exchange | LINK-USD | $21.35 0.0063823 Eth | $387,036.00 17,108.447 LINK | 0.0789% |
60 | Slex | LINK-ETH | $21.23 0.0063541 Eth | $384,512.00 17,553.940 LINK | 0.0809% |
61 | WhiteBIT | LINK-EUR | $21.25 0.0063636 Eth | $380,226.00 17,893.720 LINK | 0.0825% |
62 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.21 0.0063490 Eth | $362,918.00 387,566.955 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.7863% |
63 | BitMart | LINK-BTC | $21.24 0.0063577 Eth | $362,132.00 17,051.660 LINK | 0.0786% |
64 | QMall | LINK-USDC | $21.31 0.0063700 Eth | $331,239.00 15,123.324 LINK | 0.0697% |
65 | Bitbegin | LINK-USDT | $21.33 0.0063728 Eth | $308,916.00 14,184.667 LINK | 0.0654% |
66 | OKX | LINK-USDC | $21.24 0.0063564 Eth | $290,170.00 13,335.642 LINK | 0.0615% |
67 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $21.22 0.0063565 Eth | $284,459.00 12,752.102 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0588% |
68 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $21.19 0.0063436 Eth | $277,341.00 291,783.326 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.3449% |
69 | Coinbase Exchange | LINK-BTC | $21.19 0.0063492 Eth | $238,136.00 11,238.000 LINK | 0.0518% |
70 | Bitci TR | LINK-TRY | $21.50 0.0064395 Eth | $226,474.00 10,249.460 LINK | 0.0472% |
71 | BitStorage | LINK-ETH | $21.22 0.0063557 Eth | $205,562.00 9,686.610 LINK | 0.0446% |
72 | LATOKEN | LINK-BTC | $21.18 0.0063437 Eth | $202,476.00 9,558.668 LINK | 0.0441% |
73 | Bitso | LINK-USD | $21.35 0.0063787 Eth | $154,798.00 7,250.131 LINK | 0.0334% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $21.23 0.0063533 Eth | $152,222.00 6,913.896 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0319% |
75 | BitMart | LINK-ETH | $21.24 0.0063563 Eth | $150,999.00 7,110.840 LINK | 0.0328% |
76 | PointPay | LINK-BTC | $21.29 0.0063667 Eth | $150,745.00 6,907.272 LINK | 0.0318% |
77 | Bitkub | LINK-THB | $21.37 0.0063842 Eth | $138,648.00 6,488.455 LINK | 0.0299% |
78 | KuCoin | LINK-USDC | $21.17 0.0063380 Eth | $137,064.00 6,473.241 LINK | 0.0298% |
79 | Hotcoin | LINK-BTC | $21.21 0.0063526 Eth | $135,646.00 6,395.430 LINK | 0.0295% |
80 | Kraken | LINK-GBP | $21.25 0.0063616 Eth | $124,062.00 5,837.481 LINK | 0.0269% |
81 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $21.26 0.0063658 Eth | $109,444.00 4,930.283 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0227% |
82 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $21.36 0.0063979 Eth | $102,983.00 4,695.845 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0216% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $21.23 0.0063559 Eth | $100,162.00 4,573.053 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0211% |
84 | Mercado Bitcoin | LINK-BRL | $21.51 0.0064373 Eth | $93,608.00 4,352.742 LINK | 0.0201% |
85 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $21.18 0.0063406 Eth | $81,079.00 3,647.257 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0168% |
86 | Binance US | LINK-USDT | $21.20 0.0063487 Eth | $74,212.00 3,501.114 LINK | 0.0161% |
87 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $21.20 0.0063487 Eth | $69,836.00 73,888.928 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3406% |
88 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $21.29 0.0063735 Eth | $67,284.00 3,071.397 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0142% |
89 | EXMO | LINK-BTC | $21.30 0.0063762 Eth | $65,428.00 3,071.517 LINK | 0.0142% |
90 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $21.23 0.0063565 Eth | $58,813.00 2,752.167 0X5947BB275C521040051D82396192181B413227A3 | 0.0127% |
91 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $21.20 0.0063494 Eth | $55,078.00 2,501.767 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0115% |
92 | Hotcoin | LINK-ETH | $21.24 0.0063620 Eth | $47,322.00 2,227.840 LINK | 0.0103% |
93 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $21.16 0.0063353 Eth | $34,751.00 2,683.279 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0124% |
94 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $21.19 0.0063455 Eth | $29,759.00 1,358.232 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0063% |
95 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $21.07 0.0063108 Eth | $28,109.00 1,291.481 0X5947BB275C521040051D82396192181B413227A3 | 0.0060% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $21.22 0.0063582 Eth | $26,816.00 1,230.850 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0057% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $21.19 0.0063436 Eth | $23,059.00 1,038.654 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0048% |
98 | zondacrypto | LINK-USDC | $21.36 0.0063768 Eth | $18,665.17 873.685 LINK | 0.0040% |
99 | Bitexen | LINK-TRY | $21.23 0.0063435 Eth | $15,847.71 746.499 LINK | 0.0034% |
100 | KuCoin | LINK-KCS | $21.22 0.0063505 Eth | $13,832.66 652.012 LINK | 0.0030% |
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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