ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,170 ( 0.044%)
Market
Price
$22.65 @ 0.006756 ETH (-0.28%)
Onchain Market Cap
$22,650,000,000.00
Circulating Supply Market Cap
$14,300,281,694.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
30.953829299201767199 LINKValue
$701.10 ( ~0.209116050111617 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $22.62 0.0067680 Eth | $96,276,545.00 4,214,816.640 LINK | 18.3079% |
2 | WhiteBIT | LINK-USDT | $22.59 0.0067431 Eth | $38,478,041.00 1,703,523.870 LINK | 7.3996% |
3 | Coinbase Exchange | LINK-USD | $22.57 0.0067265 Eth | $38,284,555.00 1,695,957.950 LINK | 7.3667% |
4 | Bitget | LINK-USDT | $22.57 0.0067281 Eth | $25,932,563.00 1,134,148.477 LINK | 4.9264% |
5 | MEXC | LINK-USDT | $22.57 0.0067481 Eth | $24,308,149.00 1,077,054.490 LINK | 4.6784% |
6 | Slex | LINK-USDT | $22.60 0.0067421 Eth | $22,643,014.00 991,249.310 LINK | 4.3057% |
7 | Bybit | LINK-USDT | $22.58 0.0067330 Eth | $21,244,423.00 929,708.272 LINK | 4.0384% |
8 | P2B | LINK-USDT | $22.63 0.0067641 Eth | $19,211,623.00 849,049.270 LINK | 3.6880% |
9 | OKX | LINK-USDT | $22.57 0.0067289 Eth | $19,129,543.00 837,423.762 LINK | 3.6375% |
10 | CoinW | LINK-USDT | $22.57 0.0067260 Eth | $16,452,907.00 728,898.950 LINK | 3.1661% |
11 | Gate.io | LINK-USDT | $22.55 0.0067233 Eth | $15,739,910.00 687,717.920 LINK | 2.9872% |
12 | DigiFinex | LINK-USDT | $22.58 0.0067334 Eth | $12,739,611.00 564,075.970 LINK | 2.4502% |
13 | HTX | LINK-USDT | $22.58 0.0067302 Eth | $11,234,248.00 492,210.080 LINK | 2.1380% |
14 | XT.COM | LINK-USDT | $22.59 0.0067342 Eth | $9,639,962.00 421,951.340 LINK | 1.8328% |
15 | Azbit | LINK-USDT | $22.63 0.0067461 Eth | $9,567,197.00 418,782.397 LINK | 1.8191% |
16 | Coinstore | LINK-USDT | $22.58 0.0067318 Eth | $8,478,007.00 371,416.730 LINK | 1.6133% |
17 | Bitunix | LINK-USDT | $22.61 0.0067358 Eth | $7,826,813.00 345,943.730 LINK | 1.5027% |
18 | BTSE | LINK-USDT | $22.56 0.0067259 Eth | $7,029,788.00 311,641.274 LINK | 1.3537% |
19 | Biconomy.com | LINK-USDT | $22.65 0.0067713 Eth | $6,647,198.00 290,906.820 LINK | 1.2636% |
20 | BYDFi | LINK-USDT | $22.70 0.0067803 Eth | $6,141,326.00 270,599.680 LINK | 1.1754% |
21 | Hotcoin | LINK-USDT | $22.56 0.0067251 Eth | $6,082,703.00 269,658.790 LINK | 1.1713% |
22 | Binance | LINK-FDUSD | $22.62 0.0067398 Eth | $5,846,173.00 255,429.960 LINK | 1.1095% |
23 | LATOKEN | LINK-USDT | $22.59 0.0067351 Eth | $4,653,118.00 205,987.121 LINK | 0.8947% |
24 | LBank | LINK-USDT | $22.61 0.0067414 Eth | $4,429,212.00 195,932.880 LINK | 0.8511% |
25 | Kraken | LINK-USD | $22.56 0.0067258 Eth | $4,026,855.00 178,518.284 LINK | 0.7754% |
26 | QMall | LINK-USDT | $22.61 0.0067399 Eth | $3,898,774.00 170,664.803 LINK | 0.7413% |
27 | KuCoin | LINK-USDT | $22.60 0.0067374 Eth | $3,709,602.00 164,170.566 LINK | 0.7131% |
28 | Dex-Trade | LINK-USDT | $22.59 0.0067346 Eth | $3,114,783.00 137,905.509 LINK | 0.5990% |
29 | FMCPAY | LINK-USDT | $22.61 0.0067373 Eth | $3,094,955.00 135,639.343 LINK | 0.5892% |
30 | Bitvavo | LINK-EUR | $22.61 0.0067362 Eth | $2,504,405.00 110,782.706 LINK | 0.4812% |
31 | Dcoin | LINK-USDT | $22.67 0.0067760 Eth | $2,404,952.00 106,075.000 LINK | 0.4608% |
32 | Coinbase Exchange | LINK-GBP | $22.61 0.0067345 Eth | $2,248,734.00 99,452.770 LINK | 0.4320% |
33 | PointPay | LINK-USDT | $22.58 0.0067311 Eth | $1,570,387.00 68,730.585 LINK | 0.2985% |
34 | EXMO | LINK-USDT | $22.58 0.0067330 Eth | $1,531,832.00 67,826.239 LINK | 0.2946% |
35 | FMCPAY | LINK-ETH | $22.59 0.0067290 Eth | $1,459,113.00 63,902.560 LINK | 0.2776% |
36 | FMCPAY | LINK-BTC | $22.60 0.0067329 Eth | $1,400,327.00 62,129.700 LINK | 0.2699% |
37 | WhiteBIT | LINK-BTC | $22.63 0.0067630 Eth | $1,332,379.00 58,871.940 LINK | 0.2557% |
38 | WhiteBIT | LINK-TRY | $22.76 0.0068013 Eth | $1,314,631.00 57,764.830 LINK | 0.2509% |
39 | CoinEx | LINK-USDT | $22.61 0.0067473 Eth | $1,268,430.00 55,667.598 LINK | 0.2418% |
40 | Bybit | LINK-USDC | $22.58 0.0067314 Eth | $1,208,261.00 52,916.719 LINK | 0.2299% |
41 | Coinbase Exchange | LINK-USDT | $22.56 0.0067225 Eth | $1,156,100.00 51,244.531 LINK | 0.2226% |
42 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.60 0.0067375 Eth | $1,077,231.00 79,890.743 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3470% |
43 | Phemex | LINK-USDT | $22.59 0.0067294 Eth | $1,024,573.00 45,345.870 LINK | 0.1970% |
44 | BigONE | LINK-USDT | $22.63 0.0067408 Eth | $961,423.00 42,479.220 LINK | 0.1845% |
45 | tanX | LINK-USDC | $22.61 0.0067425 Eth | $951,188.00 41,610.620 LINK | 0.1807% |
46 | Bitbank | LINK-JPY | $22.67 0.0067575 Eth | $931,825.00 41,111.277 LINK | 0.1786% |
47 | EarnBIT | LINK-USDT | $22.59 0.0067452 Eth | $920,692.00 40,246.325 LINK | 0.1748% |
48 | Coinbase Exchange | LINK-EUR | $22.62 0.0067378 Eth | $882,126.00 38,993.980 LINK | 0.1694% |
49 | BitStorage | LINK-USDT | $22.67 0.0067742 Eth | $757,713.00 33,427.820 LINK | 0.1452% |
50 | Gemini | LINK-USD | $22.61 0.0067395 Eth | $748,812.00 33,125.425 LINK | 0.1439% |
51 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.59 0.0067297 Eth | $740,989.00 32,492.962 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1411% |
52 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $22.58 0.0067331 Eth | $734,607.00 745,211.543 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.2370% |
53 | itBit | LINK-USD | $22.62 0.0067371 Eth | $576,746.00 25,497.170 LINK | 0.1108% |
54 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $22.54 0.0067158 Eth | $564,760.00 24,772.791 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1076% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.61 0.0067351 Eth | $539,914.00 23,506.263 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1021% |
56 | Binance | LINK-EUR | $22.61 0.0067378 Eth | $518,367.00 22,693.780 LINK | 0.0986% |
57 | Binance | LINK-TRY | $22.69 0.0067627 Eth | $515,485.00 22,419.720 LINK | 0.0974% |
58 | Koinpark | LINK-USDT | $22.57 0.0067281 Eth | $489,447.00 21,688.663 LINK | 0.0942% |
59 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $22.74 0.0067801 Eth | $469,676.00 20,582.274 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0894% |
60 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.56 0.0067258 Eth | $453,439.00 19,920.506 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0865% |
61 | WhiteBIT | LINK-EUR | $22.59 0.0067465 Eth | $440,250.00 19,487.000 LINK | 0.0846% |
62 | HashKey Exchange | LINK-USD | $22.63 0.0067398 Eth | $422,391.00 18,362.339 LINK | 0.0798% |
63 | GMO Japan | LINK-JPY | $22.62 0.0067398 Eth | $416,940.00 18,433.700 LINK | 0.0801% |
64 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $22.80 0.0067917 Eth | $389,483.00 16,984.088 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0738% |
65 | Slex | LINK-ETH | $22.58 0.0067317 Eth | $388,690.00 17,031.410 LINK | 0.0740% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $22.58 0.0067267 Eth | $384,748.00 389,177.597 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.6905% |
67 | BitMart | LINK-BTC | $22.57 0.0067289 Eth | $330,539.00 14,645.120 LINK | 0.0636% |
68 | QMall | LINK-USDC | $22.61 0.0067330 Eth | $291,603.00 12,750.095 LINK | 0.0554% |
69 | BitDelta | LINK-USDT | $22.59 0.0067294 Eth | $274,963.00 12,054.000 LINK | 0.0524% |
70 | OKX | LINK-USDC | $22.58 0.0067328 Eth | $253,808.00 11,115.116 LINK | 0.0483% |
71 | Bitci TR | LINK-TRY | $22.81 0.0067924 Eth | $233,129.00 10,162.760 LINK | 0.0441% |
72 | Hotcoin | LINK-BTC | $22.57 0.0067277 Eth | $209,596.00 9,288.230 LINK | 0.0403% |
73 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.64 0.0067478 Eth | $192,870.00 8,418.263 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0366% |
74 | Coinbase Exchange | LINK-BTC | $22.61 0.0067343 Eth | $191,914.00 8,487.900 LINK | 0.0369% |
75 | LATOKEN | LINK-BTC | $22.59 0.0067367 Eth | $175,180.00 7,753.560 LINK | 0.0337% |
76 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $22.58 0.0067314 Eth | $170,384.00 7,502.179 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0326% |
77 | Bitbegin | LINK-USDT | $22.59 0.0067453 Eth | $161,358.00 7,146.775 LINK | 0.0310% |
78 | BitStorage | LINK-ETH | $22.63 0.0067407 Eth | $146,067.00 6,455.680 LINK | 0.0280% |
79 | BitMart | LINK-ETH | $22.57 0.0067299 Eth | $128,050.00 5,672.600 LINK | 0.0246% |
80 | PointPay | LINK-BTC | $22.57 0.0067274 Eth | $124,117.00 5,501.407 LINK | 0.0239% |
81 | Bitso | LINK-USD | $22.64 0.0067436 Eth | $108,526.00 4,794.421 LINK | 0.0208% |
82 | Bitkub | LINK-THB | $22.78 0.0067924 Eth | $106,491.00 4,674.174 LINK | 0.0203% |
83 | KuCoin | LINK-USDC | $22.56 0.0067282 Eth | $103,148.00 4,571.162 LINK | 0.0199% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $22.62 0.0067374 Eth | $102,919.00 4,511.332 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0196% |
85 | Binance US | LINK-USDT | $22.62 0.0067379 Eth | $101,812.00 4,500.341 LINK | 0.0195% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $22.71 0.0067639 Eth | $101,046.00 4,418.526 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0192% |
87 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $22.66 0.0067495 Eth | $91,939.00 93,193.406 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4048% |
88 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $22.60 0.0067375 Eth | $81,989.00 6,135.605 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0267% |
89 | Hotcoin | LINK-ETH | $22.58 0.0067314 Eth | $74,609.00 3,303.970 LINK | 0.0144% |
90 | KuCoin | LINK-BTC | $22.57 0.0067302 Eth | $74,366.00 3,294.652 LINK | 0.0143% |
91 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $22.60 0.0067372 Eth | $68,353.00 2,991.527 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0130% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $22.57 0.0067237 Eth | $68,171.00 2,988.428 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0130% |
93 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $22.67 0.0067520 Eth | $58,922.00 2,587.669 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0112% |
94 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $22.55 0.0067235 Eth | $57,599.00 2,528.399 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0110% |
95 | Mercado Bitcoin | LINK-BRL | $22.61 0.0067411 Eth | $53,189.00 2,352.361 LINK | 0.0102% |
96 | Nonkyc.io | LINK-BTC | $22.65 0.0067524 Eth | $43,858.00 1,946.874 LINK | 0.0085% |
97 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $22.82 0.0067966 Eth | $42,997.00 1,898.774 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0082% |
98 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $22.62 0.0067452 Eth | $36,002.00 1,574.777 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0068% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $22.70 0.0067665 Eth | $23,549.00 1,036.660 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0045% |
100 | Bitexen | LINK-TRY | $22.50 0.0067140 Eth | $16,941.62 753.126 LINK | 0.0033% |
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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