ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
729,923 ( -0.005%)
Market
Price
$24.93 @ 0.007579 ETH (-5.39%)
Onchain Market Cap
$24,930,000,000.00
Circulating Supply Market Cap
$15,906,043,214.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.92 0.0075780 Eth | $86,040,688.00 3,359,517.100 LINK | 19.3562% |
2 | Coinbase Exchange | LINK-USD | $24.94 0.0075816 Eth | $43,506,299.00 1,744,438.600 LINK | 10.0508% |
3 | Bybit | LINK-USDT | $24.93 0.0075749 Eth | $29,103,368.00 1,135,837.403 LINK | 6.5443% |
4 | Slex | LINK-USDT | $24.94 0.0075788 Eth | $25,708,618.00 1,006,854.050 LINK | 5.8011% |
5 | P2B | LINK-USDT | $24.92 0.0075763 Eth | $17,519,723.00 703,167.110 LINK | 4.0514% |
6 | HTX | LINK-USDT | $24.92 0.0075752 Eth | $15,941,724.00 623,060.423 LINK | 3.5898% |
7 | OKX | LINK-USDT | $24.93 0.0075750 Eth | $15,246,776.00 595,945.638 LINK | 3.4336% |
8 | Gate.io | LINK-USDT | $24.92 0.0075757 Eth | $12,018,238.00 466,389.540 LINK | 2.6872% |
9 | DigiFinex | LINK-USDT | $24.93 0.0075746 Eth | $11,029,202.00 442,442.340 LINK | 2.5492% |
10 | WhiteBIT | LINK-USDT | $24.93 0.0075760 Eth | $10,709,668.00 429,544.940 LINK | 2.4749% |
11 | Binance | LINK-FDUSD | $24.92 0.0075710 Eth | $8,805,538.00 343,063.280 LINK | 1.9766% |
12 | MEXC | LINK-USDT | $24.94 0.0075803 Eth | $8,602,082.00 344,936.870 LINK | 1.9874% |
13 | XT.COM | LINK-USDT | $24.95 0.0075795 Eth | $8,594,822.00 335,606.040 LINK | 1.9336% |
14 | Azbit | LINK-USDT | $24.93 0.0075755 Eth | $8,554,769.00 334,123.447 LINK | 1.9251% |
15 | Coinstore | LINK-USDT | $24.85 0.0075517 Eth | $7,838,357.00 306,159.610 LINK | 1.7640% |
16 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.94 0.0075821 Eth | $7,350,032.00 292,204.360 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.6836% |
17 | KuCoin | LINK-USDT | $24.94 0.0075771 Eth | $7,309,906.00 293,144.393 LINK | 1.6890% |
18 | Bitunix | LINK-USDT | $24.92 0.0075754 Eth | $6,727,870.00 269,904.450 LINK | 1.5551% |
19 | Binance | LINK-USDC | $24.95 0.0075846 Eth | $6,067,234.00 236,199.760 LINK | 1.3609% |
20 | Kraken | LINK-USD | $24.95 0.0075837 Eth | $5,646,307.00 226,313.233 LINK | 1.3039% |
21 | CoinW | LINK-USDT | $24.93 0.0075783 Eth | $5,392,164.00 216,305.320 LINK | 1.2463% |
22 | Hotcoin | LINK-USDT | $24.92 0.0075745 Eth | $5,132,271.00 205,975.540 LINK | 1.1868% |
23 | BYDFi | LINK-USDT | $24.94 0.0075803 Eth | $4,696,673.00 188,332.960 LINK | 1.0851% |
24 | LBank | LINK-USDT | $24.95 0.0075795 Eth | $4,096,308.00 164,212.080 LINK | 0.9461% |
25 | LATOKEN | LINK-USDT | $24.94 0.0075798 Eth | $4,070,686.00 163,243.811 LINK | 0.9405% |
26 | QMall | LINK-USDT | $24.91 0.0075735 Eth | $3,440,160.00 134,397.253 LINK | 0.7743% |
27 | Bitvavo | LINK-EUR | $24.99 0.0075986 Eth | $3,065,894.00 122,685.258 LINK | 0.7069% |
28 | Coinbase Exchange | LINK-EUR | $25.00 0.0075959 Eth | $3,024,464.00 120,986.700 LINK | 0.6971% |
29 | FMCPAY | LINK-USDT | $24.91 0.0075744 Eth | $3,022,657.00 118,540.678 LINK | 0.6830% |
30 | Dex-Trade | LINK-USDT | $24.90 0.0075682 Eth | $2,660,330.00 106,855.900 LINK | 0.6157% |
31 | WhiteBIT | LINK-BTC | $24.94 0.0075847 Eth | $2,290,780.00 91,836.640 LINK | 0.5291% |
32 | CoinEx | LINK-USDT | $24.89 0.0075684 Eth | $2,269,421.00 88,143.120 LINK | 0.5078% |
33 | Coinbase Exchange | LINK-GBP | $24.94 0.0075821 Eth | $1,853,815.00 74,318.970 LINK | 0.4282% |
34 | FMCPAY | LINK-ETH | $24.92 0.0075752 Eth | $1,650,861.00 65,727.520 LINK | 0.3787% |
35 | WhiteBIT | LINK-TRY | $25.05 0.0076117 Eth | $1,632,848.00 65,179.180 LINK | 0.3755% |
36 | FMCPAY | LINK-BTC | $24.93 0.0075753 Eth | $1,470,323.00 58,008.700 LINK | 0.3342% |
37 | Kraken | LINK-EUR | $24.98 0.0075937 Eth | $1,362,610.00 54,543.574 LINK | 0.3143% |
38 | PointPay | LINK-USDT | $24.93 0.0075810 Eth | $1,262,813.00 49,222.139 LINK | 0.2836% |
39 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.80 0.0075352 Eth | $1,252,422.00 49,861.516 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2873% |
40 | tanX | LINK-USDC | $24.91 0.0075744 Eth | $1,210,186.00 47,412.590 LINK | 0.2732% |
41 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.95 0.0075791 Eth | $1,123,329.00 44,787.635 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2580% |
42 | OKX | LINK-USDC | $24.92 0.0075731 Eth | $964,932.00 37,929.085 LINK | 0.2185% |
43 | EXMO | LINK-USDT | $24.95 0.0075829 Eth | $939,810.00 37,673.396 LINK | 0.2171% |
44 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.90 0.0075672 Eth | $918,160.00 36,583.664 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2108% |
45 | Phemex | LINK-USDT | $24.92 0.0075743 Eth | $904,354.00 36,295.510 LINK | 0.2091% |
46 | Gemini | LINK-USD | $24.97 0.0075859 Eth | $859,647.00 34,433.828 LINK | 0.1984% |
47 | Trubit | LINK-USDT | $24.96 0.0075839 Eth | $767,946.00 30,123.820 LINK | 0.1736% |
48 | BigONE | LINK-USDT | $24.89 0.0075656 Eth | $733,323.00 29,465.130 LINK | 0.1698% |
49 | Bitbank | LINK-JPY | $25.02 0.0076043 Eth | $723,761.00 28,931.479 LINK | 0.1667% |
50 | Binance | LINK-EUR | $25.01 0.0076026 Eth | $700,954.00 27,279.410 LINK | 0.1572% |
51 | EarnBIT | LINK-USDT | $24.93 0.0075771 Eth | $695,329.00 27,192.464 LINK | 0.1567% |
52 | Nonkyc.io | LINK-USDT | $25.00 0.0075985 Eth | $678,055.00 26,390.938 LINK | 0.1521% |
53 | Bybit | LINK-USDC | $24.91 0.0075703 Eth | $643,815.00 25,217.723 LINK | 0.1453% |
54 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.80 0.0075352 Eth | $637,631.00 25,022.909 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1442% |
55 | Binance | LINK-TRY | $25.03 0.0076114 Eth | $598,706.00 23,276.610 LINK | 0.1341% |
56 | WhiteBIT | LINK-EUR | $25.02 0.0076033 Eth | $544,855.00 21,774.610 LINK | 0.1255% |
57 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $24.92 0.0075722 Eth | $541,838.00 21,206.910 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1222% |
58 | QMall | LINK-USDC | $24.91 0.0075746 Eth | $479,242.00 18,673.870 LINK | 0.1076% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.94 0.0075791 Eth | $416,029.00 16,522.288 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0952% |
60 | Coinbase Exchange | LINK-USDT | $24.93 0.0075774 Eth | $414,742.00 16,637.969 LINK | 0.0959% |
61 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.95 0.0075803 Eth | $411,364.00 423,712.165 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.4413% |
62 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.97 0.0075861 Eth | $400,028.00 15,843.581 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0913% |
63 | LATOKEN | LINK-BTC | $24.94 0.0075808 Eth | $382,593.00 15,342.116 LINK | 0.0884% |
64 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.94 0.0075821 Eth | $360,140.00 29,200.325 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1682% |
65 | Bitkub | LINK-THB | $25.12 0.0076339 Eth | $348,694.00 13,878.489 LINK | 0.0800% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.95 0.0075794 Eth | $317,353.00 327,269.485 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.8856% |
67 | BitMart | LINK-BTC | $24.93 0.0075759 Eth | $291,650.00 11,697.560 LINK | 0.0674% |
68 | itBit | LINK-USD | $24.93 0.0075780 Eth | $289,276.00 11,603.549 LINK | 0.0669% |
69 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.97 0.0075860 Eth | $283,728.00 11,011.623 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0634% |
70 | Bitci TR | LINK-TRY | $25.11 0.0076354 Eth | $261,066.00 10,185.830 LINK | 0.0587% |
71 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.95 0.0075802 Eth | $246,887.00 9,594.261 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0553% |
72 | Slex | LINK-ETH | $24.94 0.0075831 Eth | $236,587.00 9,387.870 LINK | 0.0541% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.92 0.0075705 Eth | $207,128.00 8,222.192 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0474% |
74 | Coinbase Exchange | LINK-BTC | $24.93 0.0075741 Eth | $200,382.00 8,038.640 LINK | 0.0463% |
75 | Hotcoin | LINK-BTC | $24.96 0.0075842 Eth | $191,392.00 7,667.170 LINK | 0.0442% |
76 | GMO Japan | LINK-JPY | $24.93 0.0075839 Eth | $185,513.00 7,440.800 LINK | 0.0429% |
77 | bitcastle | LINK-USDT | $24.92 0.0075744 Eth | $185,498.00 7,252.360 LINK | 0.0418% |
78 | BitStorage | LINK-ETH | $24.95 0.0075814 Eth | $159,205.00 6,380.920 LINK | 0.0368% |
79 | BYDFi | LINK-USDC | $24.91 0.0075738 Eth | $149,129.00 5,986.190 LINK | 0.0345% |
80 | Binance US | LINK-USDT | $24.87 0.0075591 Eth | $145,682.00 5,858.562 LINK | 0.0338% |
81 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $24.85 0.0075542 Eth | $138,156.00 6,638.479 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0382% |
82 | PointPay | LINK-BTC | $24.91 0.0075755 Eth | $132,662.00 5,212.198 LINK | 0.0300% |
83 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.87 0.0075592 Eth | $126,415.00 4,914.219 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0283% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.80 0.0075352 Eth | $116,005.00 120,122.879 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6921% |
85 | Mercado Bitcoin | LINK-BRL | $25.05 0.0076147 Eth | $109,893.00 4,386.857 LINK | 0.0253% |
86 | BitMart | LINK-ETH | $24.92 0.0075734 Eth | $104,035.00 4,174.080 LINK | 0.0240% |
87 | Coinbase Exchange | LINK-ETH | $24.81 0.0075414 Eth | $94,698.00 3,816.900 LINK | 0.0220% |
88 | Bitso | LINK-USD | $24.87 0.0075563 Eth | $93,865.00 3,774.556 LINK | 0.0217% |
89 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | $24.83 0.0075493 Eth | $78,888.00 959.947 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0055% |
90 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.79 0.0075316 Eth | $70,992.00 2,802.781 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0161% |
91 | Hotcoin | LINK-ETH | $24.96 0.0075825 Eth | $60,671.00 2,431.020 LINK | 0.0140% |
92 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.99 0.0075936 Eth | $58,229.00 2,306.431 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0133% |
93 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.93 0.0075767 Eth | $48,355.00 1,919.713 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0111% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $24.92 0.0075726 Eth | $47,837.00 1,806.747 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0104% |
95 | Gemini | LINK-BTC | $24.87 0.0075568 Eth | $26,166.00 1,052.132 LINK | 0.0061% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.94 0.0075791 Eth | $24,247.00 963.586 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0056% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $24.94 0.0075774 Eth | $23,714.00 923.167 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0053% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $24.84 0.0075455 Eth | $22,828.00 896.708 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0052% |
99 | Dex-Trade | LINK-ETH | $24.93 0.0075820 Eth | $21,302.00 854.310 LINK | 0.0049% |
100 | HTX | LINK-BTC | $24.82 0.0075452 Eth | $16,767.89 654.727 LINK | 0.0038% |
Contract Source Code Verified (Exact Match)
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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