ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,405 ( 0.000%)
Market
Price
$20.50 @ 0.006142 ETH (-1.10%)
Onchain Market Cap
$20,500,000,000.00
Circulating Supply Market Cap
$12,927,434,049.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.001579059583807692 LINKValue
$0.03 ( ~8.98802878678545E-06 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Coinbase Exchange | LINK-USD | $20.50 0.0061354 Eth | $36,253,897.00 1,768,655.310 LINK | 12.2046% |
2 | Slex | LINK-USDT | $20.48 0.0061288 Eth | $20,551,299.00 1,024,512.170 LINK | 7.0696% |
3 | WhiteBIT | LINK-USDT | $20.49 0.0061351 Eth | $19,328,779.00 943,435.670 LINK | 6.5102% |
4 | Bitget | LINK-USDT | $20.50 0.0061404 Eth | $17,712,599.00 882,024.417 LINK | 6.0864% |
5 | Bybit | LINK-USDT | $20.49 0.0061369 Eth | $15,391,739.00 767,117.773 LINK | 5.2935% |
6 | CoinW | LINK-USDT | $20.51 0.0061286 Eth | $14,249,375.00 694,918.960 LINK | 4.7953% |
7 | MEXC | LINK-USDT | $20.51 0.0061375 Eth | $14,198,090.00 692,393.870 LINK | 4.7779% |
8 | OKX | LINK-USDT | $20.48 0.0061336 Eth | $10,396,882.00 518,072.272 LINK | 3.5750% |
9 | DigiFinex | LINK-USDT | $20.49 0.0061387 Eth | $10,137,920.00 494,697.820 LINK | 3.4137% |
10 | HTX | LINK-USDT | $20.51 0.0061430 Eth | $8,335,213.00 415,631.994 LINK | 2.8681% |
11 | XT.COM | LINK-USDT | $20.47 0.0061242 Eth | $7,918,220.00 394,986.060 LINK | 2.7256% |
12 | Azbit | LINK-USDT | $20.50 0.0061382 Eth | $7,885,774.00 393,301.359 LINK | 2.7140% |
13 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $20.50 0.0061415 Eth | $7,794,710.00 387,538.265 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.6742% |
14 | Coinstore | LINK-USDT | $20.53 0.0061381 Eth | $7,198,652.00 359,196.880 LINK | 2.4786% |
15 | Binance | LINK-FDUSD | $20.48 0.0061236 Eth | $6,624,143.00 330,011.550 LINK | 2.2772% |
16 | Bitunix | LINK-USDT | $20.49 0.0061367 Eth | $6,217,471.00 303,469.160 LINK | 2.0941% |
17 | Biconomy.com | LINK-USDT | $20.49 0.0061386 Eth | $5,164,282.00 257,534.409 LINK | 1.7771% |
18 | BYDFi | LINK-USDT | $20.50 0.0061398 Eth | $5,022,946.00 245,060.970 LINK | 1.6910% |
19 | Binance | LINK-USDC | $20.51 0.0061378 Eth | $4,306,996.00 214,878.630 LINK | 1.4828% |
20 | LBank | LINK-USDT | $20.47 0.0061270 Eth | $4,001,769.00 195,490.550 LINK | 1.3490% |
21 | BTSE | LINK-USDT | $20.48 0.0061350 Eth | $3,968,926.00 193,788.718 LINK | 1.3372% |
22 | LATOKEN | LINK-USDT | $20.49 0.0061348 Eth | $3,831,947.00 187,009.463 LINK | 1.2905% |
23 | QMall | LINK-USDT | $20.47 0.0061197 Eth | $3,098,498.00 154,743.977 LINK | 1.0678% |
24 | KuCoin | LINK-USDT | $20.48 0.0061324 Eth | $2,958,247.00 144,455.040 LINK | 0.9968% |
25 | Kraken | LINK-USD | $20.48 0.0061340 Eth | $2,906,879.00 141,908.281 LINK | 0.9792% |
26 | Hotcoin | LINK-USDT | $20.47 0.0061288 Eth | $2,673,344.00 130,617.180 LINK | 0.9013% |
27 | Dex-Trade | LINK-USDT | $20.51 0.0061341 Eth | $2,517,578.00 122,734.760 LINK | 0.8469% |
28 | CoinEx | LINK-USDT | $20.50 0.0061375 Eth | $2,085,250.00 104,004.812 LINK | 0.7177% |
29 | Dcoin | LINK-USDT | $20.46 0.0061210 Eth | $1,819,900.00 88,929.000 LINK | 0.6137% |
30 | Bitvavo | LINK-EUR | $20.53 0.0061397 Eth | $1,764,038.00 85,919.574 LINK | 0.5929% |
31 | PointPay | LINK-USDT | $20.48 0.0061212 Eth | $1,128,770.00 56,427.428 LINK | 0.3894% |
32 | EXMO | LINK-USDT | $20.47 0.0061309 Eth | $1,076,335.00 52,570.828 LINK | 0.3628% |
33 | Phemex | LINK-USDT | $20.47 0.0061266 Eth | $906,773.00 44,299.750 LINK | 0.3057% |
34 | tanX | LINK-USDC | $20.54 0.0061471 Eth | $830,623.00 41,330.110 LINK | 0.2852% |
35 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $20.52 0.0061425 Eth | $825,924.00 40,945.723 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2825% |
36 | Bitstamp | LINK-EUR | $20.53 0.0061511 Eth | $823,813.00 40,118.742 LINK | 0.2768% |
37 | Bitbank | LINK-JPY | $20.51 0.0061425 Eth | $794,753.00 38,744.597 LINK | 0.2674% |
38 | WhiteBIT | LINK-BTC | $20.47 0.0061207 Eth | $751,211.00 36,693.990 LINK | 0.2532% |
39 | Bybit | LINK-USDC | $20.47 0.0061319 Eth | $720,261.00 35,859.388 LINK | 0.2474% |
40 | BitStorage | LINK-USDT | $20.47 0.0061288 Eth | $658,383.00 32,162.230 LINK | 0.2219% |
41 | Coinbase Exchange | LINK-EUR | $20.50 0.0061386 Eth | $655,788.00 31,984.500 LINK | 0.2207% |
42 | Binance | LINK-EUR | $20.48 0.0061231 Eth | $627,083.00 31,238.840 LINK | 0.2156% |
43 | WhiteBIT | LINK-TRY | $20.61 0.0061752 Eth | $621,980.00 30,171.370 LINK | 0.2082% |
44 | Gemini | LINK-USD | $20.49 0.0061370 Eth | $604,571.00 29,509.676 LINK | 0.2036% |
45 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $20.52 0.0061429 Eth | $591,771.00 43,428.118 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2997% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $20.45 0.0061234 Eth | $574,253.00 28,706.677 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1981% |
47 | Binance | LINK-TRY | $20.58 0.0061560 Eth | $540,901.00 26,864.420 LINK | 0.1854% |
48 | GMO Japan | LINK-JPY | $20.56 0.0061527 Eth | $514,367.00 25,020.000 LINK | 0.1727% |
49 | HashKey Exchange | LINK-USD | $20.53 0.0061450 Eth | $501,709.00 24,941.246 LINK | 0.1721% |
50 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $20.47 0.0061288 Eth | $499,015.00 24,430.248 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1686% |
51 | Coinbase Exchange | LINK-USDT | $20.47 0.0061292 Eth | $490,106.00 23,945.242 LINK | 0.1652% |
52 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $20.53 0.0061440 Eth | $482,980.00 474,020.724 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.2710% |
53 | EarnBIT | LINK-USDT | $20.46 0.0061255 Eth | $473,167.00 23,647.374 LINK | 0.1632% |
54 | KuCoin | LINK-USDC | $20.51 0.0061414 Eth | $428,619.00 20,899.418 LINK | 0.1442% |
55 | BigONE | LINK-USDT | $20.51 0.0061392 Eth | $404,729.00 19,730.190 LINK | 0.1361% |
56 | Kraken | LINK-ETH | $20.51 0.0061417 Eth | $392,536.00 19,138.580 LINK | 0.1321% |
57 | Bitbegin | LINK-USDT | $20.50 0.0061379 Eth | $387,889.00 19,321.750 LINK | 0.1333% |
58 | Slex | LINK-ETH | $20.49 0.0061326 Eth | $350,521.00 17,477.310 LINK | 0.1206% |
59 | QMall | LINK-USDC | $20.51 0.0061451 Eth | $344,207.00 17,193.899 LINK | 0.1186% |
60 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $20.49 0.0061350 Eth | $341,016.00 16,980.083 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1172% |
61 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $20.52 0.0061442 Eth | $327,501.00 16,217.042 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1119% |
62 | Coinbase Exchange | LINK-BTC | $20.51 0.0061421 Eth | $311,230.00 15,173.450 LINK | 0.1047% |
63 | BitMart | LINK-BTC | $20.48 0.0061350 Eth | $280,106.00 13,676.500 LINK | 0.0944% |
64 | WhiteBIT | LINK-EUR | $20.43 0.0061210 Eth | $278,624.00 13,635.330 LINK | 0.0941% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $20.45 0.0061243 Eth | $274,312.00 269,981.036 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.8630% |
66 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $20.46 0.0061233 Eth | $274,029.00 13,456.432 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0929% |
67 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $20.56 0.0061535 Eth | $261,629.00 13,006.846 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0898% |
68 | BitDelta | LINK-USDT | $20.49 0.0061317 Eth | $205,623.00 10,242.000 LINK | 0.0707% |
69 | Coinbase Exchange | LINK-ETH | $20.55 0.0061501 Eth | $187,328.00 9,116.570 LINK | 0.0629% |
70 | Coinbase Exchange | LINK-GBP | $20.44 0.0061192 Eth | $183,416.00 8,974.050 LINK | 0.0619% |
71 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $20.52 0.0061428 Eth | $124,381.00 6,170.299 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0426% |
72 | BitMart | LINK-ETH | $20.50 0.0061357 Eth | $120,316.00 5,870.080 LINK | 0.0405% |
73 | OKX | LINK-USDC | $20.47 0.0061286 Eth | $104,719.00 5,214.797 LINK | 0.0360% |
74 | BitStorage | LINK-ETH | $20.47 0.0061295 Eth | $104,600.00 5,109.100 LINK | 0.0353% |
75 | LATOKEN | LINK-BTC | $20.53 0.0061393 Eth | $102,327.00 4,983.169 LINK | 0.0344% |
76 | Hotcoin | LINK-BTC | $20.51 0.0061424 Eth | $95,532.00 4,657.260 LINK | 0.0321% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $20.45 0.0061234 Eth | $94,003.00 4,674.262 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0323% |
78 | BYDFi | LINK-USDC | $20.49 0.0061364 Eth | $90,530.00 4,419.270 LINK | 0.0305% |
79 | Kraken | LINK-GBP | $20.39 0.0061049 Eth | $82,437.00 4,043.566 LINK | 0.0279% |
80 | Binance US | LINK-USDT | $20.48 0.0061316 Eth | $81,897.00 3,998.353 LINK | 0.0276% |
81 | Bitkub | LINK-THB | $20.38 0.0061029 Eth | $79,484.00 3,899.958 LINK | 0.0269% |
82 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $20.45 0.0061234 Eth | $76,402.00 3,758.110 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0259% |
83 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $20.53 0.0061439 Eth | $72,049.00 3,566.372 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0246% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $20.48 0.0061337 Eth | $70,410.00 3,510.152 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0242% |
85 | EXMO | LINK-BTC | $20.50 0.0061403 Eth | $62,045.00 3,025.866 LINK | 0.0209% |
86 | Bitso | LINK-USD | $20.48 0.0061254 Eth | $54,808.00 2,676.473 LINK | 0.0185% |
87 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $20.50 0.0061394 Eth | $51,075.00 2,509.607 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0173% |
88 | Mercado Bitcoin | LINK-BRL | $20.66 0.0061862 Eth | $47,208.00 2,284.725 LINK | 0.0158% |
89 | Hotcoin | LINK-ETH | $20.47 0.0061254 Eth | $34,212.00 1,671.460 LINK | 0.0115% |
90 | zondacrypto | LINK-PLN | $20.30 0.0060768 Eth | $34,026.00 1,676.406 LINK | 0.0116% |
91 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $20.34 0.0060919 Eth | $32,634.00 2,408.869 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0166% |
92 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $20.43 0.0061195 Eth | $27,322.00 1,354.372 0X5947BB275C521040051D82396192181B413227A3 | 0.0093% |
93 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $20.32 0.0060841 Eth | $26,998.00 1,345.677 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0093% |
94 | CoinEx | LINK-USDC | $20.42 0.0061158 Eth | $21,567.00 1,073.181 LINK | 0.0074% |
95 | zondacrypto | LINK-USDC | $20.52 0.0061374 Eth | $19,356.34 943.394 LINK | 0.0065% |
96 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $20.39 0.0061070 Eth | $16,782.60 16,615.594 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1147% |
97 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $20.50 0.0061415 Eth | $15,595.31 760.992 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0053% |
98 | Dex-Trade | LINK-ETH | $20.48 0.0061306 Eth | $13,952.36 681.120 LINK | 0.0047% |
99 | Bitexen | LINK-TRY | $20.42 0.0060996 Eth | $7,040.32 344.855 LINK | 0.0024% |
100 | Ace | LINK-USDT | $20.45 0.0061206 Eth | $3,326.16 165.410 LINK | 0.0011% |
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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