ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,703 ( -0.002%)
Market
Price
$12.93 @ 0.004433 ETH (+4.86%)
Onchain Market Cap
$12,930,000,000.00
Circulating Supply Market Cap
$8,105,540,464.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | LINK-USDT | $12.96 0.0044426 Eth | $46,767,348.00 3,608,312.520 LINK | 15.0593% |
2 | Binance | LINK-USDT | $12.99 0.0044528 Eth | $43,323,379.00 3,443,659.590 LINK | 14.3721% |
3 | Coinbase Exchange | LINK-USD | $12.95 0.0044396 Eth | $23,400,684.00 1,806,723.610 LINK | 7.5404% |
4 | HTX | LINK-USDT | $12.96 0.0044431 Eth | $13,363,041.00 1,064,579.393 LINK | 4.4430% |
5 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.96 0.0044425 Eth | $12,109,974.00 949,530.395 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 3.9629% |
6 | MEXC | LINK-USDT | $12.89 0.0044188 Eth | $11,273,947.00 874,858.640 LINK | 3.6512% |
7 | BTSE | LINK-USDT | $12.92 0.0044316 Eth | $9,590,423.00 742,401.092 LINK | 3.0984% |
8 | Bitget | LINK-USDT | $12.97 0.0044440 Eth | $9,436,155.00 751,519.274 LINK | 3.1365% |
9 | P2B | LINK-USDT | $12.97 0.0044437 Eth | $9,125,822.00 703,839.590 LINK | 2.9375% |
10 | Bybit | LINK-USDT | $12.98 0.0044492 Eth | $8,091,290.00 644,239.255 LINK | 2.6887% |
11 | Gate.io | LINK-USDT | $12.97 0.0044446 Eth | $7,597,003.00 604,477.100 LINK | 2.5228% |
12 | Slex | LINK-USDT | $12.95 0.0044369 Eth | $7,443,057.00 592,304.140 LINK | 2.4720% |
13 | Hotcoin | LINK-USDT | $12.94 0.0044391 Eth | $6,564,233.00 507,228.680 LINK | 2.1169% |
14 | OKX | LINK-USDT | $12.97 0.0044454 Eth | $5,992,500.00 475,663.881 LINK | 1.9852% |
15 | Bitunix | LINK-USDT | $12.93 0.0044352 Eth | $5,628,662.00 435,237.130 LINK | 1.8165% |
16 | DigiFinex | LINK-USDT | $12.99 0.0044507 Eth | $5,625,012.00 433,104.050 LINK | 1.8076% |
17 | Ourbit | LINK-USDT | $12.94 0.0044380 Eth | $4,821,436.00 383,544.850 LINK | 1.6007% |
18 | Azbit | LINK-USDT | $12.93 0.0044308 Eth | $4,771,030.00 381,494.780 LINK | 1.5922% |
19 | Upbit | LINK-KRW | $12.90 0.0044217 Eth | $4,745,554.00 367,829.374 LINK | 1.5351% |
20 | CoinW | LINK-USDT | $12.98 0.0044474 Eth | $4,339,224.00 334,423.160 LINK | 1.3957% |
21 | XT.COM | LINK-USDT | $12.96 0.0044440 Eth | $4,317,938.00 343,264.700 LINK | 1.4326% |
22 | Biconomy.com | LINK-USDT | $12.96 0.0044415 Eth | $3,940,466.00 313,499.640 LINK | 1.3084% |
23 | Binance | LINK-FDUSD | $12.91 0.0044273 Eth | $3,605,042.00 285,840.220 LINK | 1.1930% |
24 | Coinstore | LINK-USDT | $12.91 0.0044310 Eth | $3,097,595.00 246,263.580 LINK | 1.0278% |
25 | KuCoin | LINK-USDT | $12.96 0.0044429 Eth | $2,510,721.00 193,729.594 LINK | 0.8085% |
26 | ProBit Global | LINK-USDT | $12.95 0.0044375 Eth | $2,439,847.00 188,455.713 LINK | 0.7865% |
27 | LBank | LINK-USDT | $12.95 0.0044399 Eth | $2,426,584.00 187,336.660 LINK | 0.7818% |
28 | BYDFi | LINK-USDT | $12.91 0.0044276 Eth | $2,186,494.00 169,331.010 LINK | 0.7067% |
29 | LATOKEN | LINK-USDT | $12.96 0.0044440 Eth | $2,084,287.00 160,785.815 LINK | 0.6710% |
30 | WhiteBIT | LINK-BTC | $12.95 0.0044382 Eth | $1,919,237.00 148,226.470 LINK | 0.6186% |
31 | Trubit | LINK-USDT | $12.93 0.0044384 Eth | $1,839,832.00 146,507.200 LINK | 0.6114% |
32 | AscendEX (BitMax) | LINK-USDT | $12.90 0.0044201 Eth | $1,802,724.00 139,771.100 LINK | 0.5833% |
33 | Bitvavo | LINK-EUR | $12.94 0.0044363 Eth | $1,538,998.00 118,907.602 LINK | 0.4963% |
34 | Dex-Trade | LINK-USDT | $12.95 0.0044374 Eth | $1,482,395.00 114,507.040 LINK | 0.4779% |
35 | Binance | LINK-USDC | $12.97 0.0044439 Eth | $1,478,462.00 117,736.460 LINK | 0.4914% |
36 | Bithumb | LINK-KRW | $12.88 0.0044154 Eth | $1,300,915.00 101,003.577 LINK | 0.4215% |
37 | HashKey Global | LINK-USDT | $12.98 0.0044489 Eth | $1,102,337.00 88,070.750 LINK | 0.3676% |
38 | Azbit | LINK-ETH | $12.90 0.0044228 Eth | $949,774.00 74,559.772 LINK | 0.3112% |
39 | CoinEx | LINK-USDT | $12.95 0.0044394 Eth | $890,695.00 70,723.133 LINK | 0.2952% |
40 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.97 0.0044459 Eth | $873,055.00 68,266.587 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2849% |
41 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.94 0.0044354 Eth | $866,384.00 67,991.860 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2838% |
42 | BigONE | LINK-USDT | $12.96 0.0044433 Eth | $833,025.00 64,271.540 LINK | 0.2682% |
43 | tanX | LINK-USDC | $12.90 0.0044195 Eth | $725,099.00 57,771.130 LINK | 0.2411% |
44 | WhiteBIT | LINK-TRY | $12.94 0.0044370 Eth | $722,515.00 55,815.940 LINK | 0.2329% |
45 | AscendEX (BitMax) | LINK-BTC | $12.98 0.0044487 Eth | $672,137.00 51,777.700 LINK | 0.2161% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.89 0.0044178 Eth | $610,843.00 47,793.155 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1995% |
47 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.97 0.0044450 Eth | $543,800.00 42,800.941 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1786% |
48 | itBit | LINK-USD | $12.95 0.0044389 Eth | $496,698.00 38,355.062 LINK | 0.1601% |
49 | ProBit Global | LINK-BTC | $12.96 0.0044433 Eth | $483,339.00 37,291.811 LINK | 0.1556% |
50 | PointPay | LINK-USDT | $12.97 0.0044437 Eth | $481,119.00 38,236.831 LINK | 0.1596% |
51 | Phemex | LINK-USDT | $12.92 0.0044282 Eth | $467,632.00 36,190.080 LINK | 0.1510% |
52 | LATOKEN | LINK-BTC | $12.98 0.0044482 Eth | $401,911.00 30,966.497 LINK | 0.1292% |
53 | KickEX | LINK-USDT | $12.97 0.0044464 Eth | $393,322.00 30,321.025 LINK | 0.1265% |
54 | EXMO | LINK-USDT | $12.97 0.0044460 Eth | $376,864.00 29,058.535 LINK | 0.1213% |
55 | Coinbase Exchange | LINK-EUR | $12.96 0.0044439 Eth | $370,631.00 28,597.890 LINK | 0.1194% |
56 | WhiteBIT | LINK-EUR | $12.94 0.0044352 Eth | $360,233.00 27,835.010 LINK | 0.1162% |
57 | Bitbank | LINK-JPY | $13.00 0.0044562 Eth | $287,005.00 22,076.518 LINK | 0.0921% |
58 | Bybit | LINK-USDC | $12.98 0.0044478 Eth | $286,601.00 22,781.255 LINK | 0.0951% |
59 | Binance | LINK-EUR | $12.96 0.0044422 Eth | $285,646.00 22,714.750 LINK | 0.0948% |
60 | EarnBIT | LINK-USDT | $12.94 0.0044381 Eth | $283,225.00 22,465.135 LINK | 0.0938% |
61 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $12.97 0.0044434 Eth | $261,855.00 20,734.933 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0865% |
62 | BYDFi | LINK-USDC | $12.91 0.0044295 Eth | $248,128.00 19,214.170 LINK | 0.0802% |
63 | BitMart | LINK-BTC | $12.97 0.0044440 Eth | $216,858.00 16,723.240 LINK | 0.0698% |
64 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $12.97 0.0044456 Eth | $215,849.00 17,146.144 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0716% |
65 | Slex | LINK-ETH | $12.96 0.0044406 Eth | $215,811.00 16,933.070 LINK | 0.0707% |
66 | Gemini | LINK-USD | $12.95 0.0044383 Eth | $214,585.00 16,570.264 LINK | 0.0692% |
67 | Coinbase Exchange | LINK-GBP | $12.95 0.0044397 Eth | $207,090.00 15,994.260 LINK | 0.0668% |
68 | GMO Japan | LINK-JPY | $12.95 0.0044435 Eth | $183,242.00 14,147.100 LINK | 0.0590% |
69 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.96 0.0044420 Eth | $181,733.00 176,411.881 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.7363% |
70 | BitDelta | LINK-USDT | $12.96 0.0044425 Eth | $177,839.00 14,188.000 LINK | 0.0592% |
71 | Binance | LINK-TRY | $12.94 0.0044358 Eth | $156,235.00 12,475.750 LINK | 0.0521% |
72 | Bitkub | LINK-THB | $12.96 0.0044451 Eth | $155,297.00 11,986.840 LINK | 0.0500% |
73 | OKX | LINK-USDC | $12.96 0.0044422 Eth | $152,562.00 12,164.041 LINK | 0.0508% |
74 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $12.94 0.0044345 Eth | $137,573.00 10,773.422 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0450% |
75 | Bitci TR | LINK-TRY | $12.98 0.0044490 Eth | $128,228.00 10,227.520 LINK | 0.0427% |
76 | Uniswap V2 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.92 0.0044303 Eth | $122,003.00 9,693.734 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0405% |
77 | Slex | LINK-BTC | $12.96 0.0044401 Eth | $116,315.00 9,195.100 LINK | 0.0384% |
78 | Coinbase Exchange | LINK-ETH | $12.96 0.0044417 Eth | $105,271.00 8,123.810 LINK | 0.0339% |
79 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.94 0.0044351 Eth | $90,759.00 87,042.563 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3633% |
80 | PointPay | LINK-BTC | $12.96 0.0044404 Eth | $80,752.00 6,384.710 LINK | 0.0266% |
81 | Bitso | LINK-USD | $12.92 0.0044273 Eth | $80,204.00 6,209.844 LINK | 0.0259% |
82 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $12.93 0.0044325 Eth | $78,781.00 6,310.424 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0263% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $12.95 0.0044416 Eth | $73,369.00 5,824.064 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0243% |
84 | Coinbase Exchange | LINK-BTC | $12.98 0.0044485 Eth | $66,622.00 5,132.500 LINK | 0.0214% |
85 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $12.94 0.0044354 Eth | $60,364.00 58,803.918 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2454% |
86 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $12.94 0.0044358 Eth | $59,676.00 4,743.788 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0198% |
87 | Kanga | LINK-PLN | $12.99 0.0044513 Eth | $56,988.00 0.000 LINK | 0.0000% |
88 | Mercado Bitcoin | LINK-BRL | $12.93 0.0044303 Eth | $55,246.00 4,274.012 LINK | 0.0178% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $12.94 0.0044366 Eth | $52,377.00 4,101.786 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0171% |
90 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $12.92 0.0044276 Eth | $51,274.00 4,062.107 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0170% |
91 | Uniswap V3 (Ethereum) | 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $12.94 0.0044334 Eth | $46,194.00 141,453.663 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23 | 0.5904% |
92 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $12.85 0.0044057 Eth | $44,436.00 3,497.305 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0146% |
93 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $12.91 0.0044258 Eth | $39,182.00 38,045.046 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1588% |
94 | KuCoin | LINK-USDC | $12.94 0.0044363 Eth | $35,427.00 2,737.602 LINK | 0.0114% |
95 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $12.89 0.0044180 Eth | $32,332.00 2,534.578 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0106% |
96 | Binance US | LINK-USDT | $12.96 0.0044409 Eth | $28,553.00 2,203.876 LINK | 0.0092% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $12.96 0.0044419 Eth | $26,768.00 2,101.824 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0088% |
98 | Coinone | LINK-KRW | $12.84 0.0044019 Eth | $24,890.00 1,937.869 LINK | 0.0081% |
99 | Independent Reserve | LINK-AUD | $12.85 0.0044203 Eth | $24,583.00 1,913.150 LINK | 0.0080% |
100 | KuCoin | LINK-BTC | $12.95 0.0044406 Eth | $23,426.00 1,808.513 LINK | 0.0075% |
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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