ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
725,405 ( -0.267%)
Market
Price
$19.77 @ 0.006133 ETH (-3.82%)
Onchain Market Cap
$19,770,000,000.00
Circulating Supply Market Cap
$12,486,427,912.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.28685325274207336 LINKValue
$5.67 ( ~0.0017589238579112 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Coinbase Exchange | LINK-USD | $19.80 0.0061401 Eth | $42,573,784.00 2,149,756.840 LINK | 10.6063% |
2 | Bitget | LINK-USDT | $19.80 0.0061355 Eth | $23,562,482.00 1,185,360.663 LINK | 5.8483% |
3 | MEXC | LINK-USDT | $19.77 0.0061298 Eth | $22,451,968.00 1,135,606.170 LINK | 5.6028% |
4 | P2B | LINK-USDT | $19.81 0.0061422 Eth | $21,832,362.00 1,101,857.220 LINK | 5.4363% |
5 | Slex | LINK-USDT | $19.78 0.0061293 Eth | $19,906,115.00 999,026.510 LINK | 4.9289% |
6 | Bybit | LINK-USDT | $19.78 0.0061300 Eth | $18,691,386.00 940,653.560 LINK | 4.6409% |
7 | Gate.io | LINK-USDT | $19.79 0.0061330 Eth | $14,702,003.00 742,094.100 LINK | 3.6613% |
8 | DigiFinex | LINK-USDT | $19.79 0.0061319 Eth | $13,300,135.00 672,113.260 LINK | 3.3160% |
9 | OKX | LINK-USDT | $19.78 0.0061278 Eth | $13,075,352.00 658,578.912 LINK | 3.2493% |
10 | HTX | LINK-USDT | $19.80 0.0061368 Eth | $11,969,342.00 600,996.060 LINK | 2.9652% |
11 | XT.COM | LINK-USDT | $19.82 0.0061399 Eth | $10,929,479.00 550,241.770 LINK | 2.7147% |
12 | FameEX | LINK-USDT | $19.78 0.0061299 Eth | $10,874,213.00 547,450.843 LINK | 2.7010% |
13 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.80 0.0061355 Eth | $10,701,253.00 547,313.802 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.7003% |
14 | Azbit | LINK-USDT | $19.76 0.0061253 Eth | $10,559,153.00 531,019.881 LINK | 2.6199% |
15 | Coinstore | LINK-USDT | $19.76 0.0061209 Eth | $9,390,472.00 472,835.140 LINK | 2.3328% |
16 | Biconomy.com | LINK-USDT | $19.81 0.0061389 Eth | $9,344,857.00 464,254.580 LINK | 2.2905% |
17 | CoinW | LINK-USDT | $19.82 0.0061413 Eth | $8,369,125.00 422,263.790 LINK | 2.0833% |
18 | Bitunix | LINK-USDT | $19.78 0.0061314 Eth | $8,156,373.00 412,335.562 LINK | 2.0344% |
19 | Binance | LINK-FDUSD | $19.71 0.0061110 Eth | $7,306,757.00 367,600.800 LINK | 1.8136% |
20 | Hotcoin | LINK-USDT | $19.78 0.0061332 Eth | $7,050,820.00 356,472.270 LINK | 1.7587% |
21 | KuCoin | LINK-USDT | $19.79 0.0061329 Eth | $6,487,721.00 327,799.554 LINK | 1.6173% |
22 | BYDFi | LINK-USDT | $19.81 0.0061376 Eth | $6,070,603.00 306,483.600 LINK | 1.5121% |
23 | LATOKEN | LINK-USDT | $19.81 0.0061373 Eth | $5,426,516.00 273,981.874 LINK | 1.3518% |
24 | LBank | LINK-USDT | $19.78 0.0061296 Eth | $5,345,990.00 270,225.650 LINK | 1.3332% |
25 | QMall | LINK-USDT | $19.78 0.0061302 Eth | $4,305,180.00 216,988.377 LINK | 1.0706% |
26 | BTSE | LINK-USDT | $19.80 0.0061339 Eth | $3,961,201.00 200,102.228 LINK | 0.9873% |
27 | Kraken | LINK-USD | $19.78 0.0061297 Eth | $3,838,871.00 194,063.514 LINK | 0.9575% |
28 | Dex-Trade | LINK-USDT | $19.80 0.0061375 Eth | $3,517,896.00 177,680.730 LINK | 0.8766% |
29 | FMCPAY | LINK-USDT | $19.79 0.0061324 Eth | $2,716,387.00 136,750.917 LINK | 0.6747% |
30 | ProBit Global | LINK-USDT | $19.79 0.0061365 Eth | $2,420,979.00 122,331.332 LINK | 0.6036% |
31 | Dcoin | LINK-USDT | $19.76 0.0061254 Eth | $2,299,475.00 116,373.000 LINK | 0.5742% |
32 | Bitvavo | LINK-EUR | $19.74 0.0061181 Eth | $2,263,686.00 114,651.422 LINK | 0.5657% |
33 | EXMO | LINK-USDT | $19.77 0.0061230 Eth | $2,058,546.00 104,136.383 LINK | 0.5138% |
34 | CoinEx | LINK-USDT | $19.80 0.0061328 Eth | $1,885,126.00 95,059.724 LINK | 0.4690% |
35 | PointPay | LINK-USDT | $19.72 0.0061252 Eth | $1,612,870.00 81,083.902 LINK | 0.4000% |
36 | Coinbase Exchange | LINK-EUR | $19.79 0.0061309 Eth | $1,439,346.00 72,727.420 LINK | 0.3588% |
37 | BigONE | LINK-USDT | $19.71 0.0061062 Eth | $1,400,178.00 71,025.380 LINK | 0.3504% |
38 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.70 0.0061033 Eth | $1,355,116.00 69,537.505 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3431% |
39 | Phemex | LINK-USDT | $19.81 0.0061376 Eth | $1,271,852.00 64,211.380 LINK | 0.3168% |
40 | Kraken | LINK-EUR | $19.81 0.0061394 Eth | $1,261,557.00 63,674.022 LINK | 0.3142% |
41 | FMCPAY | LINK-ETH | $19.78 0.0061284 Eth | $1,171,138.00 59,787.520 LINK | 0.2950% |
42 | FMCPAY | LINK-BTC | $19.77 0.0061276 Eth | $1,166,250.00 58,920.900 LINK | 0.2907% |
43 | tanX | LINK-USDC | $19.79 0.0061319 Eth | $971,219.00 48,807.180 LINK | 0.2408% |
44 | BitStorage | LINK-USDT | $19.78 0.0061313 Eth | $886,264.00 44,808.390 LINK | 0.2211% |
45 | Coinbase Exchange | LINK-ETH | $19.75 0.0061191 Eth | $795,836.00 40,299.520 LINK | 0.1988% |
46 | Gemini | LINK-USD | $19.81 0.0061398 Eth | $785,620.00 39,649.456 LINK | 0.1956% |
47 | Coinbase Exchange | LINK-GBP | $19.80 0.0061350 Eth | $781,755.00 39,474.340 LINK | 0.1948% |
48 | Coinbase Exchange | LINK-BTC | $19.78 0.0061326 Eth | $724,481.00 36,627.280 LINK | 0.1807% |
49 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.82 0.0061385 Eth | $685,826.00 34,424.684 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1698% |
50 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.81 0.0061373 Eth | $670,364.00 34,033.384 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1679% |
51 | ProBit Global | LINK-BTC | $19.79 0.0061310 Eth | $651,945.00 32,950.101 LINK | 0.1626% |
52 | Bitbank | LINK-JPY | $19.80 0.0061399 Eth | $625,593.00 31,588.675 LINK | 0.1559% |
53 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.80 0.0061352 Eth | $604,074.00 606,426.206 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.9919% |
54 | EarnBIT | LINK-USDT | $19.78 0.0061302 Eth | $594,017.00 29,947.559 LINK | 0.1478% |
55 | itBit | LINK-USD | $19.81 0.0061409 Eth | $579,092.00 29,232.308 LINK | 0.1442% |
56 | GMO Japan | LINK-JPY | $19.78 0.0061286 Eth | $577,028.00 29,175.100 LINK | 0.1439% |
57 | Bybit | LINK-USDC | $19.80 0.0061349 Eth | $573,904.00 29,004.659 LINK | 0.1431% |
58 | Koinpark | LINK-USDT | $19.76 0.0061241 Eth | $559,235.00 28,301.996 LINK | 0.1396% |
59 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.81 0.0061373 Eth | $558,526.00 560,315.108 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.7644% |
60 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.81 0.0061373 Eth | $535,498.00 27,371.965 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1350% |
61 | Bitbegin | LINK-USDT | $19.78 0.0061280 Eth | $513,235.00 25,781.378 LINK | 0.1272% |
62 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.81 0.0061372 Eth | $491,411.00 25,089.491 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1238% |
63 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.77 0.0061226 Eth | $460,842.00 23,401.853 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1155% |
64 | OKX | LINK-USDC | $19.78 0.0061289 Eth | $455,782.00 22,992.694 LINK | 0.1134% |
65 | Coinbase Exchange | LINK-USDT | $19.78 0.0061313 Eth | $390,870.00 19,761.869 LINK | 0.0975% |
66 | Binance | LINK-TRY | $19.78 0.0061328 Eth | $379,997.00 19,165.440 LINK | 0.0946% |
67 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.82 0.0061376 Eth | $301,992.00 15,429.127 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0761% |
68 | BitDelta | LINK-USDT | $19.79 0.0061324 Eth | $283,979.00 14,303.000 LINK | 0.0706% |
69 | Hotcoin | LINK-BTC | $19.77 0.0061306 Eth | $272,280.00 13,771.770 LINK | 0.0679% |
70 | BitMart | LINK-BTC | $19.81 0.0061367 Eth | $271,888.00 13,725.100 LINK | 0.0677% |
71 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.89 0.0061629 Eth | $245,983.00 19,079.162 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0941% |
72 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.80 0.0061353 Eth | $219,411.00 11,211.802 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0553% |
73 | Bitci TR | LINK-TRY | $19.63 0.0060964 Eth | $198,539.00 9,940.050 LINK | 0.0490% |
74 | LATOKEN | LINK-BTC | $19.76 0.0061275 Eth | $197,829.00 10,009.381 LINK | 0.0494% |
75 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $19.75 0.0061187 Eth | $184,131.00 9,440.800 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0466% |
76 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.77 0.0061301 Eth | $173,191.00 8,720.002 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0430% |
77 | Bitkub | LINK-THB | $19.82 0.0061449 Eth | $166,811.00 8,415.093 LINK | 0.0415% |
78 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $19.70 0.0061034 Eth | $166,468.00 8,465.816 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0418% |
79 | Slex | LINK-ETH | $19.76 0.0061264 Eth | $161,153.00 8,245.340 LINK | 0.0407% |
80 | PointPay | LINK-BTC | $19.70 0.0061161 Eth | $156,519.00 7,931.287 LINK | 0.0391% |
81 | BitStorage | LINK-ETH | $19.77 0.0061274 Eth | $140,981.00 7,129.570 LINK | 0.0352% |
82 | Binance | LINK-BRL | $19.86 0.0061568 Eth | $136,922.00 6,794.440 LINK | 0.0335% |
83 | Binance US | LINK-USDT | $19.81 0.0061351 Eth | $134,335.00 6,780.483 LINK | 0.0335% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $19.84 0.0061451 Eth | $121,478.00 122,167.615 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6027% |
85 | BTCMarkets | LINK-AUD | $19.82 0.0061440 Eth | $113,951.00 5,749.946 LINK | 0.0284% |
86 | KuCoin | LINK-USDC | $19.78 0.0061286 Eth | $112,473.00 5,686.750 LINK | 0.0281% |
87 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.75 0.0061179 Eth | $103,688.00 5,199.669 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0257% |
88 | BitMart | LINK-ETH | $19.80 0.0061347 Eth | $101,339.00 5,117.380 LINK | 0.0252% |
89 | Hotcoin | LINK-ETH | $19.76 0.0061282 Eth | $94,595.00 4,786.430 LINK | 0.0236% |
90 | Kraken | LINK-GBP | $19.75 0.0061192 Eth | $94,211.00 4,770.788 LINK | 0.0235% |
91 | Bitso | LINK-USD | $19.78 0.0061302 Eth | $84,726.00 4,284.426 LINK | 0.0211% |
92 | CoinEx | LINK-USDC | $19.82 0.0061421 Eth | $58,746.00 2,948.354 LINK | 0.0145% |
93 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.76 0.0061241 Eth | $54,220.00 2,746.324 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0135% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.84 0.0061479 Eth | $42,224.00 2,146.766 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0106% |
95 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $19.76 0.0061247 Eth | $41,332.00 2,207.967 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0109% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $19.80 0.0061345 Eth | $38,660.00 1,951.804 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0096% |
97 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.81 0.0061366 Eth | $28,791.00 2,227.185 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0110% |
98 | HTX | LINK-BTC | $19.75 0.0061209 Eth | $22,199.00 1,124.526 LINK | 0.0055% |
99 | Dex-Trade | LINK-ETH | $19.77 0.0061295 Eth | $20,240.00 1,023.590 LINK | 0.0051% |
100 | Bitexen | LINK-TRY | $19.70 0.0061093 Eth | $19,986.13 1,014.524 LINK | 0.0050% |
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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