ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,318 ( 0.003%)
Market
Price
$10.89 @ 0.004373 ETH (-0.59%)
Onchain Market Cap
$10,890,000,000.00
Circulating Supply Market Cap
$6,827,451,659.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $10.90 0.0043749 Eth | $14,830,803.00 1,350,711.630 LINK | 10.5091% |
2 | WhiteBIT | LINK-USDT | $10.89 0.0043731 Eth | $13,230,923.00 1,214,730.950 LINK | 9.4511% |
3 | Ecxx | LINK-USDT | $10.88 0.0043686 Eth | $9,948,154.00 914,672.320 LINK | 7.1166% |
4 | HTX | LINK-USDT | $10.90 0.0043749 Eth | $8,791,655.00 801,322.671 LINK | 6.2346% |
5 | Bitget | LINK-USDT | $10.90 0.0043753 Eth | $8,341,386.00 760,481.062 LINK | 5.9169% |
6 | Coinbase Exchange | LINK-USD | $10.90 0.0043776 Eth | $7,885,784.00 723,532.820 LINK | 5.6294% |
7 | Bybit | LINK-USDT | $10.90 0.0043760 Eth | $4,509,672.00 410,512.676 LINK | 3.1940% |
8 | Azbit | LINK-USDT | $10.87 0.0043646 Eth | $4,340,191.00 396,100.700 LINK | 3.0818% |
9 | BTSE | LINK-USDT | $10.89 0.0043730 Eth | $3,491,280.00 320,668.214 LINK | 2.4949% |
10 | Poloniex | LINK-USDT | $10.90 0.0043805 Eth | $3,328,935.00 303,308.287 LINK | 2.3599% |
11 | WEEX | LINK-USDT | $10.87 0.0043689 Eth | $3,104,748.00 282,721.810 LINK | 2.1997% |
12 | P2B | LINK-USDT | $10.88 0.0043686 Eth | $3,075,485.00 282,777.340 LINK | 2.2001% |
13 | BVOX | LINK-USDT | $10.89 0.0043705 Eth | $2,965,821.00 270,139.212 LINK | 2.1018% |
14 | Biconomy.com | LINK-USDT | $10.88 0.0043707 Eth | $2,950,721.00 269,076.020 LINK | 2.0935% |
15 | Ourbit | LINK-USDT | $10.86 0.0043680 Eth | $2,598,794.00 236,730.800 LINK | 1.8419% |
16 | Slex | LINK-USDT | $10.90 0.0043767 Eth | $2,560,084.00 233,189.060 LINK | 1.8143% |
17 | Upbit | LINK-KRW | $10.99 0.0044129 Eth | $2,480,593.00 225,682.273 LINK | 1.7559% |
18 | Trubit | LINK-USDT | $10.91 0.0043821 Eth | $2,314,682.00 210,536.760 LINK | 1.6381% |
19 | OKX | LINK-USDT | $10.89 0.0043747 Eth | $2,313,506.00 210,950.175 LINK | 1.6413% |
20 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.98 0.0044067 Eth | $1,924,207.00 174,172.396 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.3551% |
21 | DigiFinex | LINK-USDT | $10.90 0.0043758 Eth | $1,894,126.00 173,785.960 LINK | 1.3521% |
22 | AscendEX (BitMax) | LINK-USDT | $10.87 0.0043628 Eth | $1,705,307.00 156,930.800 LINK | 1.2210% |
23 | C-Patex | LINK-USDT | $10.89 0.0043727 Eth | $1,563,937.00 143,656.764 LINK | 1.1177% |
24 | LBank | LINK-USDT | $10.88 0.0043684 Eth | $1,536,759.00 141,247.770 LINK | 1.0990% |
25 | CoinW | LINK-USDT | $10.90 0.0043748 Eth | $1,530,637.00 140,478.720 LINK | 1.0930% |
26 | Deepcoin | LINK-USDT | $10.90 0.0043750 Eth | $1,526,097.00 140,730.740 LINK | 1.0949% |
27 | XT.COM | LINK-USDT | $10.88 0.0043700 Eth | $1,481,920.00 135,009.300 LINK | 1.0504% |
28 | Niza Global | LINK-USD | $10.87 0.0043662 Eth | $1,283,542.00 116,875.428 LINK | 0.9093% |
29 | Kraken | LINK-USD | $10.87 0.0043663 Eth | $1,270,515.00 116,875.428 LINK | 0.9093% |
30 | Toobit | LINK-USDT | $10.87 0.0043691 Eth | $1,236,719.00 112,663.640 LINK | 0.8766% |
31 | Bitunix | LINK-USDT | $10.88 0.0043704 Eth | $1,226,544.00 112,701.680 LINK | 0.8769% |
32 | KuCoin | LINK-USDT | $10.90 0.0043767 Eth | $1,185,597.00 108,804.106 LINK | 0.8465% |
33 | HashKey Global | LINK-USDT | $10.90 0.0043786 Eth | $1,099,562.00 100,772.229 LINK | 0.7841% |
34 | Coinstore | LINK-USDT | $10.89 0.0043687 Eth | $1,090,093.00 99,342.150 LINK | 0.7729% |
35 | Crypto.com Exchange | LINK-USDT | $10.90 0.0043762 Eth | $1,035,782.00 95,025.130 LINK | 0.7393% |
36 | Binance | LINK-BTC | $10.90 0.0043747 Eth | $819,403.00 74,483.610 LINK | 0.5795% |
37 | Azbit | LINK-ETH | $10.89 0.0043773 Eth | $797,656.00 72,657.927 LINK | 0.5653% |
38 | FMCPAY | LINK-USDT | $10.88 0.0043686 Eth | $777,533.00 70,852.401 LINK | 0.5513% |
39 | MEXC | LINK-USDT | $10.90 0.0043741 Eth | $753,728.00 69,151.340 LINK | 0.5380% |
40 | BYDFi | LINK-USDT | $10.91 0.0043804 Eth | $695,168.00 63,719.300 LINK | 0.4958% |
41 | Crypto.com Exchange | LINK-USD | $10.90 0.0043750 Eth | $662,545.00 60,800.690 LINK | 0.4731% |
42 | HitBTC | LINK-USDT | $10.90 0.0043756 Eth | $640,785.00 58,417.110 LINK | 0.4545% |
43 | FMFW.io | LINK-USDT | $10.90 0.0043819 Eth | $636,925.00 58,427.620 LINK | 0.4546% |
44 | Bitvavo | LINK-EUR | $10.89 0.0043711 Eth | $635,312.00 58,357.106 LINK | 0.4540% |
45 | Bithumb | LINK-KRW | $10.98 0.0044090 Eth | $627,293.00 57,145.599 LINK | 0.4446% |
46 | FameEX | LINK-USDT | $10.89 0.0043736 Eth | $589,970.00 53,738.585 LINK | 0.4181% |
47 | WhiteBIT | LINK-BTC | $10.90 0.0043750 Eth | $578,671.00 53,090.110 LINK | 0.4131% |
48 | Gate.io | LINK-USDT | $10.88 0.0043714 Eth | $541,954.00 49,329.260 LINK | 0.3838% |
49 | CoinEx | LINK-USDT | $10.89 0.0043704 Eth | $527,067.00 48,028.134 LINK | 0.3737% |
50 | tanX | LINK-USDC | $10.90 0.0043761 Eth | $437,234.00 39,855.080 LINK | 0.3101% |
51 | LATOKEN | LINK-USDT | $10.90 0.0043727 Eth | $284,591.00 26,118.473 LINK | 0.2032% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.90 0.0043778 Eth | $243,850.00 22,252.299 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1731% |
53 | PointPay | LINK-USDT | $10.88 0.0043729 Eth | $238,926.00 21,758.226 LINK | 0.1693% |
54 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.86 0.0043628 Eth | $238,518.00 21,737.882 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1691% |
55 | Bit2Me | LINK-EUR | $10.87 0.0043659 Eth | $224,823.00 20,607.567 LINK | 0.1603% |
56 | Pionex | LINK-USDT | $10.90 0.0043734 Eth | $198,892.00 18,118.620 LINK | 0.1410% |
57 | BigONE | LINK-USDT | $10.92 0.0043838 Eth | $196,665.00 18,007.840 LINK | 0.1401% |
58 | BitMart | LINK-BTC | $10.88 0.0043716 Eth | $194,273.00 17,849.160 LINK | 0.1389% |
59 | LATOKEN | LINK-BTC | $10.89 0.0043700 Eth | $169,977.00 15,613.534 LINK | 0.1215% |
60 | EXMO | LINK-USDT | $10.90 0.0043745 Eth | $162,336.00 14,898.776 LINK | 0.1159% |
61 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.93 0.0043898 Eth | $141,076.00 12,880.208 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1002% |
62 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.89 0.0043747 Eth | $134,665.00 12,306.304 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0957% |
63 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.89 0.0043728 Eth | $125,443.00 11,389.612 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0886% |
64 | BitDelta | LINK-USDT | $10.88 0.0043687 Eth | $120,806.00 11,014.000 LINK | 0.0857% |
65 | Bitci TR | LINK-TRY | $10.99 0.0044112 Eth | $115,201.00 10,423.360 LINK | 0.0811% |
66 | WhiteBIT | LINK-TRY | $10.96 0.0043991 Eth | $103,325.00 9,430.530 LINK | 0.0734% |
67 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $10.87 0.0043645 Eth | $100,546.00 9,206.461 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0716% |
68 | Coinbase Exchange | LINK-BTC | $10.90 0.0043776 Eth | $92,991.00 8,528.910 LINK | 0.0664% |
69 | Slex | LINK-ETH | $10.90 0.0043783 Eth | $69,150.00 6,291.980 LINK | 0.0490% |
70 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.86 0.0043639 Eth | $62,271.00 63,019.051 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.4903% |
71 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.86 0.0043652 Eth | $56,189.00 56,756.085 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4416% |
72 | BYDFi | LINK-USDC | $10.86 0.0043648 Eth | $50,252.00 4,626.530 LINK | 0.0360% |
73 | Slex | LINK-BTC | $10.85 0.0043636 Eth | $49,886.00 4,535.900 LINK | 0.0353% |
74 | OKX | LINK-USDC | $10.88 0.0043691 Eth | $46,330.00 4,219.956 LINK | 0.0328% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.86 0.0043639 Eth | $37,561.00 3,407.645 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0265% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.89 0.0043731 Eth | $33,982.00 3,104.424 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0242% |
77 | GMO Japan | LINK-JPY | $10.90 0.0043760 Eth | $33,594.00 3,083.400 LINK | 0.0240% |
78 | Binance US | LINK-USDT | $10.89 0.0043692 Eth | $23,717.00 2,178.687 LINK | 0.0170% |
79 | EXMO | LINK-BTC | $10.91 0.0043788 Eth | $22,500.00 2,062.981 LINK | 0.0161% |
80 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.91 0.0043825 Eth | $20,659.00 1,881.533 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0146% |
81 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.89 0.0043726 Eth | $19,190.25 19,395.659 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1509% |
82 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.86 0.0043628 Eth | $16,386.95 1,491.723 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0116% |
83 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $10.86 0.0043628 Eth | $16,367.60 1,495.945 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0116% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.86 0.0043628 Eth | $13,063.92 13,276.291 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1033% |
85 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.90 0.0043745 Eth | $11,353.57 1,032.428 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0080% |
86 | BTCMarkets | LINK-AUD | $10.92 0.0043843 Eth | $9,159.33 839.108 LINK | 0.0065% |
87 | TokoCrypto | LINK-USDT | $10.91 0.0043772 Eth | $8,288.94 760.095 LINK | 0.0059% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $10.86 0.0043639 Eth | $4,551.22 413.373 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0032% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.92 0.0043857 Eth | $4,065.39 370.257 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0029% |
90 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $10.92 0.0043871 Eth | $3,927.33 358.031 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0028% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $10.86 0.0043621 Eth | $3,422.62 311.774 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0024% |
92 | CoinEx | LINK-BTC | $10.93 0.0043886 Eth | $2,560.88 231.579 LINK | 0.0018% |
93 | CoinEx | LINK-USDC | $10.87 0.0043638 Eth | $1,985.85 180.740 LINK | 0.0014% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $10.90 0.0043763 Eth | $1,138.01 101.875 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0008% |
95 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.91 0.0043805 Eth | $943.01 85.531 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0007% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $10.86 0.0043651 Eth | $919.13 84.665 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0007% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $10.88 0.0043715 Eth | $178.44 16.387 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
98 | Uniswap V3 (Ethereum) | 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $10.93 0.0043917 Eth | $173.93 1.208 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9 | 0.0000% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $10.89 0.0043750 Eth | $129.65 11.810 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | CEX.IO | LINK-USDT | $10.90 0.0043771 Eth | $18.43 1.678 LINK | 0.0000% |
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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