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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
730,115 ( 0.018%)
Market
Price
$24.99 @ 0.007478 ETH (-3.59%)
Onchain Market Cap
$24,990,000,000.00
Circulating Supply Market Cap
$15,953,413,738.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
10.12551783 LINKValue
$253.04 ( ~0.0757169431122345 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $25.02 0.0075013 Eth | $76,994,302.00 3,056,792.290 LINK | 21.8268% |
2 | Coinbase Exchange | LINK-USD | $24.99 0.0074939 Eth | $42,144,549.00 1,686,321.590 LINK | 12.0410% |
3 | Slex | LINK-USDT | $24.99 0.0074927 Eth | $25,498,477.00 1,012,936.900 LINK | 7.2328% |
4 | Bybit | LINK-USDT | $25.02 0.0075023 Eth | $24,242,707.00 961,641.424 LINK | 6.8665% |
5 | P2B | LINK-USDT | $25.01 0.0074987 Eth | $16,107,827.00 644,135.830 LINK | 4.5994% |
6 | HTX | LINK-USDT | $25.01 0.0075004 Eth | $14,127,241.00 561,029.247 LINK | 4.0060% |
7 | OKX | LINK-USDT | $25.01 0.0075001 Eth | $13,647,915.00 541,838.559 LINK | 3.8690% |
8 | Binance | LINK-FDUSD | $24.98 0.0074874 Eth | $7,731,823.00 307,285.680 LINK | 2.1941% |
9 | WhiteBIT | LINK-USDT | $24.95 0.0074779 Eth | $7,698,284.00 308,607.690 LINK | 2.2036% |
10 | XT.COM | LINK-USDT | $25.00 0.0074970 Eth | $7,667,594.00 304,347.890 LINK | 2.1732% |
11 | Azbit | LINK-USDT | $24.98 0.0074897 Eth | $7,644,617.00 303,438.780 LINK | 2.1667% |
12 | KuCoin | LINK-USDT | $25.00 0.0074959 Eth | $7,124,239.00 284,995.999 LINK | 2.0350% |
13 | Coinstore | LINK-USDT | $25.00 0.0074957 Eth | $6,869,926.00 272,770.990 LINK | 1.9477% |
14 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $25.00 0.0074959 Eth | $6,759,514.00 267,174.736 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.9077% |
15 | Bitunix | LINK-USDT | $24.98 0.0074907 Eth | $6,105,412.00 244,422.380 LINK | 1.7453% |
16 | CoinW | LINK-USDT | $25.03 0.0075022 Eth | $4,813,990.00 192,352.100 LINK | 1.3735% |
17 | BYDFi | LINK-USDT | $24.99 0.0074927 Eth | $4,257,355.00 170,376.640 LINK | 1.2166% |
18 | Hotcoin | LINK-USDT | $24.98 0.0074892 Eth | $3,873,517.00 155,071.310 LINK | 1.1073% |
19 | Kraken | LINK-USD | $24.76 0.0074248 Eth | $3,777,371.00 152,543.508 LINK | 1.0892% |
20 | LBank | LINK-USDT | $25.01 0.0074987 Eth | $3,733,575.00 149,299.020 LINK | 1.0661% |
21 | LATOKEN | LINK-USDT | $24.99 0.0074942 Eth | $3,599,627.00 144,050.710 LINK | 1.0286% |
22 | FMCPAY | LINK-USDT | $24.99 0.0074932 Eth | $3,311,787.00 131,685.100 LINK | 0.9403% |
23 | Coinbase Exchange | LINK-EUR | $25.05 0.0075122 Eth | $3,169,078.00 126,517.830 LINK | 0.9034% |
24 | QMall | LINK-USDT | $24.99 0.0074948 Eth | $3,157,564.00 125,338.451 LINK | 0.8950% |
25 | Dex-Trade | LINK-USDT | $25.02 0.0075033 Eth | $2,469,309.00 98,689.210 LINK | 0.7047% |
26 | Bitvavo | LINK-EUR | $25.04 0.0075064 Eth | $1,977,561.00 78,972.537 LINK | 0.5639% |
27 | WhiteBIT | LINK-BTC | $24.95 0.0074814 Eth | $1,865,926.00 74,788.080 LINK | 0.5340% |
28 | Coinbase Exchange | LINK-GBP | $24.98 0.0074914 Eth | $1,683,218.00 67,378.590 LINK | 0.4811% |
29 | FMCPAY | LINK-ETH | $24.98 0.0074902 Eth | $1,585,742.00 62,662.720 LINK | 0.4474% |
30 | FMCPAY | LINK-BTC | $25.00 0.0074961 Eth | $1,476,803.00 58,792.600 LINK | 0.4198% |
31 | CoinEx | LINK-USDT | $25.00 0.0074950 Eth | $1,463,091.00 57,923.214 LINK | 0.4136% |
32 | WhiteBIT | LINK-TRY | $25.09 0.0075221 Eth | $1,318,068.00 52,539.830 LINK | 0.3752% |
33 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.98 0.0074889 Eth | $1,142,191.00 45,259.649 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3232% |
34 | tanX | LINK-USDC | $25.00 0.0074958 Eth | $1,082,861.00 42,941.220 LINK | 0.3066% |
35 | PointPay | LINK-USDT | $24.98 0.0074890 Eth | $1,015,450.00 40,220.679 LINK | 0.2872% |
36 | Gemini | LINK-USD | $24.99 0.0074916 Eth | $924,474.00 37,000.567 LINK | 0.2642% |
37 | EXMO | LINK-USDT | $25.02 0.0075040 Eth | $876,175.00 35,012.425 LINK | 0.2500% |
38 | OKX | LINK-USDC | $25.00 0.0074954 Eth | $840,564.00 33,490.464 LINK | 0.2391% |
39 | Phemex | LINK-USDT | $25.00 0.0074950 Eth | $837,553.00 33,504.460 LINK | 0.2392% |
40 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.00 0.0074954 Eth | $808,942.00 31,847.397 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2274% |
41 | Trubit | LINK-USDT | $24.99 0.0074947 Eth | $759,756.00 30,153.600 LINK | 0.2153% |
42 | Kraken | LINK-EUR | $24.87 0.0074585 Eth | $657,533.00 26,433.786 LINK | 0.1887% |
43 | EarnBIT | LINK-USDT | $25.00 0.0074974 Eth | $638,640.00 25,361.913 LINK | 0.1811% |
44 | Bitbank | LINK-JPY | $25.06 0.0075149 Eth | $604,468.00 24,120.983 LINK | 0.1722% |
45 | BigONE | LINK-USDT | $25.04 0.0075083 Eth | $562,797.00 22,475.750 LINK | 0.1605% |
46 | Binance | LINK-EUR | $25.08 0.0075177 Eth | $558,111.00 22,139.970 LINK | 0.1581% |
47 | Binance | LINK-TRY | $25.12 0.0075321 Eth | $543,470.00 21,459.900 LINK | 0.1532% |
48 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.99 0.0074919 Eth | $524,828.00 20,777.129 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1484% |
49 | WhiteBIT | LINK-EUR | $25.01 0.0074995 Eth | $507,548.00 20,293.270 LINK | 0.1449% |
50 | QMall | LINK-USDC | $25.10 0.0075261 Eth | $400,073.00 15,842.869 LINK | 0.1131% |
51 | Kraken | LINK-XBT | $24.79 0.0074331 Eth | $371,705.00 14,994.016 LINK | 0.1071% |
52 | Coinbase Exchange | LINK-USDT | $25.07 0.0075180 Eth | $340,822.00 13,595.906 LINK | 0.0971% |
53 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.02 0.0075028 Eth | $335,325.00 13,299.689 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0950% |
54 | LATOKEN | LINK-BTC | $24.98 0.0074914 Eth | $318,582.00 12,751.944 LINK | 0.0911% |
55 | BitMart | LINK-BTC | $24.98 0.0074893 Eth | $304,473.00 12,190.200 LINK | 0.0870% |
56 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $24.98 0.0074923 Eth | $300,168.00 11,872.364 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0848% |
57 | Coinbase Exchange | LINK-BTC | $24.99 0.0074942 Eth | $293,519.00 11,743.960 LINK | 0.0839% |
58 | Kraken | LINK-USDT | $24.79 0.0074339 Eth | $288,821.00 11,649.352 LINK | 0.0832% |
59 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.02 0.0074993 Eth | $246,520.00 250,431.497 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.7882% |
60 | Bitci TR | LINK-TRY | $25.21 0.0075604 Eth | $246,357.00 9,738.440 LINK | 0.0695% |
61 | BitDelta | LINK-USDT | $24.99 0.0074940 Eth | $244,739.00 9,694.000 LINK | 0.0692% |
62 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $24.99 0.0074947 Eth | $242,916.00 19,816.086 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1415% |
63 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.36 0.0076048 Eth | $235,739.00 235,426.684 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.6810% |
64 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $25.00 0.0074944 Eth | $203,879.00 8,064.955 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0576% |
65 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.98 0.0074906 Eth | $179,009.00 7,080.019 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0506% |
66 | BitStorage | LINK-ETH | $25.09 0.0075179 Eth | $175,416.00 6,990.290 LINK | 0.0499% |
67 | GMO Japan | LINK-JPY | $25.28 0.0075815 Eth | $169,636.00 6,709.100 LINK | 0.0479% |
68 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.03 0.0075049 Eth | $162,580.00 6,424.403 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0459% |
69 | Hotcoin | LINK-BTC | $25.00 0.0074972 Eth | $140,384.00 5,614.700 LINK | 0.0401% |
70 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $25.04 0.0075077 Eth | $139,513.00 6,695.709 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0478% |
71 | Coinbase Exchange | LINK-ETH | $25.13 0.0075351 Eth | $133,577.00 5,315.560 LINK | 0.0380% |
72 | BYDFi | LINK-USDC | $25.01 0.0074999 Eth | $111,829.00 4,471.000 LINK | 0.0319% |
73 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $25.07 0.0075182 Eth | $110,983.00 4,367.531 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0312% |
74 | Kraken | LINK-GBP | $24.78 0.0074302 Eth | $109,064.00 4,401.218 LINK | 0.0314% |
75 | BitMart | LINK-ETH | $24.99 0.0074944 Eth | $106,007.00 4,241.340 LINK | 0.0303% |
76 | Bitkub | LINK-THB | $25.18 0.0075499 Eth | $105,065.00 4,172.884 LINK | 0.0298% |
77 | Mercado Bitcoin | LINK-BRL | $25.11 0.0075312 Eth | $102,768.00 4,092.048 LINK | 0.0292% |
78 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.96 0.0074847 Eth | $86,316.00 87,438.589 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6243% |
79 | Binance US | LINK-USDT | $25.01 0.0074987 Eth | $83,853.00 3,353.143 LINK | 0.0239% |
80 | Kraken | LINK-USDC | $24.80 0.0074385 Eth | $70,846.00 2,856.389 LINK | 0.0204% |
81 | KuCoin | LINK-USDC | $24.98 0.0074910 Eth | $68,707.00 2,750.347 LINK | 0.0196% |
82 | Bitso | LINK-USD | $25.00 0.0074984 Eth | $68,664.00 2,746.028 LINK | 0.0196% |
83 | Kanga | LINK-PLN | $25.22 0.0075633 Eth | $68,527.00 0.000 LINK | 0.0000% |
84 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $25.02 0.0075009 Eth | $61,939.00 2,458.471 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0176% |
85 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $25.12 0.0075329 Eth | $47,347.00 1,872.180 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0134% |
86 | Hotcoin | LINK-ETH | $24.99 0.0074932 Eth | $42,991.00 1,720.450 LINK | 0.0123% |
87 | Kraken | LINK-ETH | $25.02 0.0075018 Eth | $39,248.00 1,568.723 LINK | 0.0112% |
88 | Dex-Trade | LINK-ETH | $24.99 0.0074918 Eth | $24,363.00 975.110 LINK | 0.0070% |
89 | OKX | LINK-EUR | $25.17 0.0075455 Eth | $24,049.00 957.336 LINK | 0.0068% |
90 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $25.04 0.0075075 Eth | $21,365.00 28.574 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $25.09 0.0075228 Eth | $20,281.00 796.123 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0057% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $25.02 0.0075039 Eth | $18,891.11 750.748 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0054% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $24.97 0.0074872 Eth | $18,149.78 721.542 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0052% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $25.05 0.0075118 Eth | $17,934.52 709.206 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0051% |
95 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $25.10 0.0075257 Eth | $14,298.72 555.355 0X5947BB275C521040051D82396192181B413227A3 | 0.0040% |
96 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $25.02 0.0075017 Eth | $12,708.60 503.293 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0036% |
97 | KuCoin | LINK-KCS | $24.98 0.0074917 Eth | $12,055.70 482.547 LINK | 0.0034% |
98 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $24.98 0.0074902 Eth | $9,446.48 28.165 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0002% |
99 | Gemini | LINK-BTC | $25.18 0.0075504 Eth | $8,133.83 323.007 LINK | 0.0023% |
100 | Bitexen | LINK-TRY | $24.88 0.0074613 Eth | $7,096.73 285.216 LINK | 0.0020% |
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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