ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,280 (0.00%)
Market
Price
$11.77 @ 0.004484 ETH (+4.94%)
Onchain Market Cap
$11,770,000,000.00
Circulating Supply Market Cap
$7,377,718,636.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $11.77 0.0044903 Eth | $28,226,662.00 2,445,213.690 LINK | 14.0989% |
2 | WhiteBIT | LINK-USDT | $11.72 0.0044858 Eth | $20,703,861.00 1,766,230.560 LINK | 10.1840% |
3 | Coinbase Exchange | LINK-USD | $11.77 0.0044870 Eth | $17,329,250.00 1,472,949.420 LINK | 8.4929% |
4 | HTX | LINK-USDT | $11.75 0.0044843 Eth | $16,258,408.00 1,407,654.373 LINK | 8.1164% |
5 | Bybit | LINK-USDT | $11.79 0.0045004 Eth | $10,888,619.00 941,804.533 LINK | 5.4304% |
6 | Bitget | LINK-USDT | $11.76 0.0044859 Eth | $9,517,458.00 824,197.841 LINK | 4.7523% |
7 | Gate.io | LINK-USDT | $11.76 0.0044883 Eth | $7,058,555.00 609,817.210 LINK | 3.5162% |
8 | Upbit | LINK-KRW | $11.81 0.0045081 Eth | $6,095,622.00 516,001.005 LINK | 2.9752% |
9 | OKX | LINK-USDT | $11.75 0.0044847 Eth | $5,585,919.00 483,764.619 LINK | 2.7894% |
10 | Azbit | LINK-USDT | $11.75 0.0044840 Eth | $4,984,988.00 431,721.630 LINK | 2.4893% |
11 | Slex | LINK-USDT | $11.76 0.0044839 Eth | $4,938,169.00 427,579.470 LINK | 2.4654% |
12 | BTSE | LINK-USDT | $11.77 0.0044934 Eth | $4,734,484.00 402,082.861 LINK | 2.3184% |
13 | BVOX | LINK-USDT | $11.78 0.0044889 Eth | $4,427,420.00 383,453.250 LINK | 2.2110% |
14 | Biconomy.com | LINK-USDT | $11.78 0.0044938 Eth | $3,573,648.00 309,243.130 LINK | 1.7831% |
15 | CoinW | LINK-USDT | $11.76 0.0044873 Eth | $2,931,073.00 249,266.920 LINK | 1.4373% |
16 | Bitunix | LINK-USDT | $11.77 0.0044836 Eth | $2,914,213.00 247,778.610 LINK | 1.4287% |
17 | XT.COM | LINK-USDT | $11.77 0.0044874 Eth | $2,837,652.00 245,698.480 LINK | 1.4167% |
18 | Hotcoin | LINK-USDT | $11.78 0.0044910 Eth | $2,486,549.00 211,002.340 LINK | 1.2166% |
19 | KuCoin | LINK-USDT | $11.76 0.0044872 Eth | $2,472,279.00 210,198.780 LINK | 1.2120% |
20 | Trubit | LINK-USDT | $11.72 0.0044912 Eth | $2,385,568.00 206,694.290 LINK | 1.1918% |
21 | Kraken | LINK-USD | $11.76 0.0044895 Eth | $2,278,501.00 193,673.369 LINK | 1.1167% |
22 | Coinstore | LINK-USDT | $11.77 0.0044912 Eth | $2,017,680.00 174,574.170 LINK | 1.0066% |
23 | LBank | LINK-USDT | $11.76 0.0044841 Eth | $1,996,172.00 169,793.900 LINK | 0.9790% |
24 | Bitvavo | LINK-EUR | $11.73 0.0044720 Eth | $1,896,815.00 161,763.455 LINK | 0.9327% |
25 | ProBit Global | LINK-USDT | $11.78 0.0044926 Eth | $1,891,314.00 160,556.648 LINK | 0.9258% |
26 | AscendEX (BitMax) | LINK-USDT | $11.75 0.0044827 Eth | $1,764,571.00 150,217.100 LINK | 0.8661% |
27 | Binance | LINK-BTC | $11.78 0.0044910 Eth | $1,731,598.00 148,768.430 LINK | 0.8578% |
28 | Bithumb | LINK-KRW | $11.83 0.0045158 Eth | $1,470,969.00 124,290.903 LINK | 0.7167% |
29 | BYDFi | LINK-USDT | $11.75 0.0044845 Eth | $1,379,056.00 117,339.240 LINK | 0.6766% |
30 | WhiteBIT | LINK-BTC | $11.78 0.0044937 Eth | $1,207,087.00 102,507.560 LINK | 0.5911% |
31 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.74 0.0044760 Eth | $1,094,317.00 94,973.141 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.5476% |
32 | HashKey Global | LINK-USDT | $11.77 0.0044875 Eth | $1,076,661.00 93,654.578 LINK | 0.5400% |
33 | BigONE | LINK-USDT | $11.79 0.0044953 Eth | $1,006,655.00 85,383.080 LINK | 0.4923% |
34 | Dex-Trade | LINK-USDT | $11.77 0.0044881 Eth | $950,698.00 80,794.730 LINK | 0.4659% |
35 | Azbit | LINK-ETH | $11.77 0.0044893 Eth | $921,405.00 79,944.250 LINK | 0.4610% |
36 | CoinEx | LINK-USDT | $11.78 0.0044886 Eth | $844,932.00 73,078.339 LINK | 0.4214% |
37 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.68 0.0044548 Eth | $648,554.00 56,295.511 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3246% |
38 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.73 0.0044754 Eth | $601,539.00 52,281.225 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3015% |
39 | LATOKEN | LINK-USDT | $11.71 0.0044856 Eth | $536,245.00 45,809.153 LINK | 0.2641% |
40 | tanX | LINK-USDC | $11.75 0.0044870 Eth | $483,042.00 41,813.220 LINK | 0.2411% |
41 | PointPay | LINK-USDT | $11.73 0.0044957 Eth | $429,262.00 37,109.858 LINK | 0.2140% |
42 | Gemini | LINK-USD | $11.77 0.0044874 Eth | $412,581.00 35,068.436 LINK | 0.2022% |
43 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.73 0.0044748 Eth | $366,038.00 31,644.522 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1825% |
44 | KickEX | LINK-USDT | $11.80 0.0044952 Eth | $359,543.00 30,481.508 LINK | 0.1758% |
45 | ProBit Global | LINK-BTC | $11.78 0.0044918 Eth | $353,583.00 30,021.428 LINK | 0.1731% |
46 | LATOKEN | LINK-BTC | $11.76 0.0044901 Eth | $345,034.00 29,329.692 LINK | 0.1691% |
47 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.74 0.0044808 Eth | $340,408.00 29,662.795 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1710% |
48 | EXMO | LINK-USDT | $11.69 0.0044598 Eth | $337,074.00 28,842.415 LINK | 0.1663% |
49 | Phemex | LINK-USDT | $11.78 0.0044916 Eth | $331,197.00 28,122.040 LINK | 0.1621% |
50 | Bybit | LINK-USDC | $11.77 0.0044911 Eth | $328,714.00 28,467.323 LINK | 0.1641% |
51 | BYDFi | LINK-USDC | $11.74 0.0044944 Eth | $281,865.00 24,018.000 LINK | 0.1385% |
52 | Coinbase Exchange | LINK-USDT | $11.68 0.0044535 Eth | $274,398.00 23,498.682 LINK | 0.1355% |
53 | EarnBIT | LINK-USDT | $11.77 0.0044873 Eth | $266,764.00 23,098.742 LINK | 0.1332% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.79 0.0044970 Eth | $251,611.00 21,804.578 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1257% |
55 | WhiteBIT | LINK-EUR | $11.79 0.0044983 Eth | $227,389.00 19,290.610 LINK | 0.1112% |
56 | Binance | LINK-EUR | $11.77 0.0044862 Eth | $220,623.00 19,074.230 LINK | 0.1100% |
57 | BitMart | LINK-BTC | $11.77 0.0044911 Eth | $203,286.00 17,271.600 LINK | 0.0996% |
58 | Binance | LINK-ETH | $11.76 0.0044849 Eth | $175,047.00 15,195.020 LINK | 0.0876% |
59 | Bitbank | LINK-JPY | $11.75 0.0044834 Eth | $171,112.00 14,564.595 LINK | 0.0840% |
60 | BitDelta | LINK-USDT | $11.77 0.0044877 Eth | $154,342.00 13,393.000 LINK | 0.0772% |
61 | WhiteBIT | LINK-TRY | $11.78 0.0044967 Eth | $147,990.00 12,560.070 LINK | 0.0724% |
62 | OKX | LINK-USDC | $11.75 0.0044852 Eth | $144,027.00 12,469.089 LINK | 0.0719% |
63 | GMO Japan | LINK-JPY | $11.69 0.0044582 Eth | $139,727.00 11,957.800 LINK | 0.0689% |
64 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $11.73 0.0044759 Eth | $125,236.00 10,860.256 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0626% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.77 0.0044906 Eth | $110,166.00 108,346.952 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.6247% |
66 | Slex | LINK-BTC | $11.77 0.0044922 Eth | $101,415.00 8,721.200 LINK | 0.0503% |
67 | Bitkub | LINK-THB | $11.74 0.0044799 Eth | $87,373.00 7,443.352 LINK | 0.0429% |
68 | KuCoin | LINK-USDC | $11.78 0.0044954 Eth | $78,910.00 6,696.880 LINK | 0.0386% |
69 | Bitso | LINK-USD | $11.79 0.0044993 Eth | $73,759.00 6,255.252 LINK | 0.0361% |
70 | Binance US | LINK-USDT | $11.71 0.0044815 Eth | $71,480.00 6,105.992 LINK | 0.0352% |
71 | Slex | LINK-ETH | $11.75 0.0044825 Eth | $69,774.00 6,060.560 LINK | 0.0349% |
72 | Binance | LINK-BNB | $11.77 0.0044870 Eth | $66,310.00 5,797.875 LINK | 0.0334% |
73 | PointPay | LINK-BTC | $11.78 0.0044906 Eth | $64,637.00 5,550.977 LINK | 0.0320% |
74 | Binance | LINK-TRY | $11.79 0.0044969 Eth | $63,743.00 5,494.120 LINK | 0.0317% |
75 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.69 0.0044532 Eth | $59,831.00 59,013.039 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3403% |
76 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.74 0.0044779 Eth | $59,641.00 5,175.657 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0298% |
77 | Kraken | LINK-GBP | $11.72 0.0044712 Eth | $59,447.00 5,073.747 LINK | 0.0293% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.77 0.0044906 Eth | $39,167.00 3,388.616 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0195% |
79 | Binance | LINK-BRL | $11.65 0.0044380 Eth | $38,245.00 3,338.520 LINK | 0.0192% |
80 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $11.76 0.0044866 Eth | $37,833.00 3,305.466 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0191% |
81 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.74 0.0044799 Eth | $37,826.00 3,281.204 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0189% |
82 | Mercado Bitcoin | LINK-BRL | $11.60 0.0044273 Eth | $37,244.00 3,210.249 LINK | 0.0185% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.77 0.0044903 Eth | $33,528.00 2,892.822 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0167% |
84 | EXMO | LINK-BTC | $11.77 0.0044920 Eth | $30,668.00 2,605.333 LINK | 0.0150% |
85 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.77 0.0044920 Eth | $30,288.00 2,625.951 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0151% |
86 | Bitcointry | LINK-USDT | $11.75 0.0044843 Eth | $28,508.00 2,471.928 LINK | 0.0143% |
87 | HTX | LINK-BTC | $11.81 0.0045056 Eth | $27,786.00 2,407.033 LINK | 0.0139% |
88 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.72 0.0044717 Eth | $25,666.00 25,291.303 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1458% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.76 0.0044833 Eth | $24,680.00 2,131.390 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0123% |
90 | Coinone | LINK-KRW | $11.73 0.0044727 Eth | $22,778.00 1,942.481 LINK | 0.0112% |
91 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $11.73 0.0044744 Eth | $22,332.00 1,930.447 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0111% |
92 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.74 0.0044814 Eth | $22,156.00 21,851.288 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1260% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.75 0.0044745 Eth | $19,222.35 1,668.028 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0096% |
94 | Nonkyc.io | LINK-BTC | $11.72 0.0044708 Eth | $17,913.88 1,539.688 LINK | 0.0089% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD93F7E271CB87C23AAA73EDC008A79646D1F9912 | $11.74 0.0044785 Eth | $14,747.04 1,276.681 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0074% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.71 0.0044670 Eth | $9,451.52 817.993 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0047% |
97 | Uniswap V2 (Ethereum) | 0XDFC5964141C018485B4D017634660F85AA667714-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $11.75 0.0044735 Eth | $9,425.69 470,424.524 0XDFC5964141C018485B4D017634660F85AA667714 | 2.7124% |
98 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $11.73 0.0044765 Eth | $8,309.70 12.470 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.77 0.0044906 Eth | $8,127.71 695.031 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0040% |
100 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.70 0.0044652 Eth | $7,903.42 722.321 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0042% |
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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