ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,634 ( 0.021%)
Market
Price
$11.10 @ 0.004453 ETH (+7.87%)
Onchain Market Cap
$11,100,000,000.00
Circulating Supply Market Cap
$6,943,895,488.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
55.81585398 LINKValue
$619.56 ( ~0.248565300674789 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | LINK-USDT | $11.16 0.0044571 Eth | $34,255,332.00 3,069,636.310 LINK | 16.3702% |
2 | Binance | LINK-USDT | $11.07 0.0044481 Eth | $27,070,416.00 2,530,487.460 LINK | 13.4949% |
3 | Coinbase Exchange | LINK-USD | $11.16 0.0044561 Eth | $15,150,163.00 1,357,906.560 LINK | 7.2416% |
4 | HTX | LINK-USDT | $11.16 0.0044580 Eth | $11,974,603.00 1,124,377.850 LINK | 5.9962% |
5 | Bitget | LINK-USDT | $11.15 0.0044529 Eth | $9,524,135.00 893,956.388 LINK | 4.7674% |
6 | Bybit | LINK-USDT | $11.15 0.0044532 Eth | $7,975,832.00 746,329.700 LINK | 3.9801% |
7 | BTSE | LINK-USDT | $11.16 0.0044554 Eth | $6,082,339.00 545,207.373 LINK | 2.9076% |
8 | Gate.io | LINK-USDT | $11.13 0.0044462 Eth | $5,849,720.00 542,009.400 LINK | 2.8905% |
9 | Slex | LINK-USDT | $11.15 0.0044541 Eth | $5,506,960.00 516,522.810 LINK | 2.7546% |
10 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.13 0.0044440 Eth | $5,407,175.00 491,750.526 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.6225% |
11 | P2B | LINK-USDT | $11.15 0.0044542 Eth | $5,263,435.00 471,927.100 LINK | 2.5168% |
12 | OKX | LINK-USDT | $11.14 0.0044511 Eth | $4,857,050.00 454,333.058 LINK | 2.4229% |
13 | Azbit | LINK-USDT | $11.12 0.0044415 Eth | $4,418,195.00 414,738.290 LINK | 2.2118% |
14 | Hotcoin | LINK-USDT | $11.12 0.0044670 Eth | $3,873,641.00 348,474.380 LINK | 1.8584% |
15 | DigiFinex | LINK-USDT | $11.16 0.0044581 Eth | $3,775,378.00 338,170.810 LINK | 1.8034% |
16 | Ourbit | LINK-USDT | $11.16 0.0044591 Eth | $3,506,508.00 328,748.860 LINK | 1.7532% |
17 | Biconomy.com | LINK-USDT | $11.15 0.0044517 Eth | $3,469,093.00 325,511.510 LINK | 1.7359% |
18 | Upbit | LINK-KRW | $11.16 0.0044584 Eth | $3,378,326.00 302,584.313 LINK | 1.6137% |
19 | Bitunix | LINK-USDT | $11.15 0.0044554 Eth | $3,332,375.00 298,888.460 LINK | 1.5940% |
20 | CoinW | LINK-USDT | $11.08 0.0044534 Eth | $2,997,872.00 270,557.830 LINK | 1.4429% |
21 | XT.COM | LINK-USDT | $11.10 0.0044543 Eth | $2,732,659.00 255,339.700 LINK | 1.3617% |
22 | Trubit | LINK-USDT | $11.15 0.0044563 Eth | $2,154,004.00 200,925.030 LINK | 1.0715% |
23 | LBank | LINK-USDT | $11.18 0.0044653 Eth | $1,935,472.00 173,131.110 LINK | 0.9233% |
24 | C-Patex | LINK-USDT | $11.12 0.0044433 Eth | $1,898,304.00 170,700.594 LINK | 0.9103% |
25 | Coinstore | LINK-USDT | $11.05 0.0044529 Eth | $1,875,851.00 175,571.930 LINK | 0.9363% |
26 | AscendEX (BitMax) | LINK-USDT | $11.18 0.0044651 Eth | $1,789,263.00 160,085.400 LINK | 0.8537% |
27 | KuCoin | LINK-USDT | $11.16 0.0044601 Eth | $1,490,155.00 133,505.686 LINK | 0.7120% |
28 | BYDFi | LINK-USDT | $11.17 0.0044621 Eth | $1,397,387.00 125,108.740 LINK | 0.6672% |
29 | Bithumb | LINK-KRW | $11.17 0.0044609 Eth | $1,269,607.00 113,640.556 LINK | 0.6060% |
30 | Binance | LINK-BTC | $11.09 0.0044524 Eth | $1,257,720.00 114,114.490 LINK | 0.6086% |
31 | Binance | LINK-FDUSD | $11.20 0.0044740 Eth | $1,237,258.00 114,909.710 LINK | 0.6128% |
32 | WhiteBIT | LINK-BTC | $11.16 0.0044600 Eth | $1,170,492.00 104,860.590 LINK | 0.5592% |
33 | Bitvavo | LINK-EUR | $11.11 0.0044546 Eth | $1,037,789.00 93,443.046 LINK | 0.4983% |
34 | Dex-Trade | LINK-USDT | $11.14 0.0044501 Eth | $955,181.00 85,704.976 LINK | 0.4571% |
35 | HashKey Global | LINK-USDT | $11.09 0.0044499 Eth | $841,002.00 79,509.804 LINK | 0.4240% |
36 | Azbit | LINK-ETH | $11.12 0.0044521 Eth | $835,104.00 76,229.762 LINK | 0.4065% |
37 | BigONE | LINK-USDT | $11.16 0.0044570 Eth | $698,033.00 62,557.150 LINK | 0.3336% |
38 | Binance | LINK-USDC | $11.05 0.0044376 Eth | $694,494.00 65,016.880 LINK | 0.3467% |
39 | AscendEX (BitMax) | LINK-BTC | $11.22 0.0044813 Eth | $615,497.00 54,870.200 LINK | 0.2926% |
40 | LATOKEN | LINK-USDT | $11.07 0.0044613 Eth | $528,737.00 47,769.405 LINK | 0.2548% |
41 | EXMO | LINK-USDT | $11.16 0.0044572 Eth | $501,755.00 44,953.205 LINK | 0.2397% |
42 | CoinEx | LINK-USDT | $11.14 0.0044512 Eth | $496,957.00 46,219.314 LINK | 0.2465% |
43 | tanX | LINK-USDC | $11.11 0.0044569 Eth | $480,099.00 45,060.080 LINK | 0.2403% |
44 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.11 0.0044380 Eth | $423,388.00 38,598.378 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2058% |
45 | PointPay | LINK-USDT | $11.15 0.0044529 Eth | $343,433.00 31,991.520 LINK | 0.1706% |
46 | WhiteBIT | LINK-TRY | $11.13 0.0044724 Eth | $336,144.00 30,208.450 LINK | 0.1611% |
47 | WhiteBIT | LINK-EUR | $11.11 0.0044386 Eth | $326,265.00 29,369.940 LINK | 0.1566% |
48 | Bybit | LINK-USDC | $11.16 0.0044576 Eth | $306,970.00 28,810.269 LINK | 0.1536% |
49 | Gemini | LINK-USD | $11.15 0.0044521 Eth | $306,271.00 27,468.272 LINK | 0.1465% |
50 | Phemex | LINK-USDT | $11.16 0.0044590 Eth | $298,969.00 26,791.100 LINK | 0.1429% |
51 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.13 0.0044451 Eth | $270,717.00 24,627.324 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1313% |
52 | LATOKEN | LINK-BTC | $11.04 0.0044364 Eth | $243,777.00 22,072.297 LINK | 0.1177% |
53 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.99 0.0043904 Eth | $228,860.00 21,043.949 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1122% |
54 | BitStorage | LINK-USDT | $11.09 0.0044506 Eth | $225,746.00 20,356.880 LINK | 0.1086% |
55 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.16 0.0044551 Eth | $218,046.00 19,843.785 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1058% |
56 | BitMart | LINK-BTC | $11.14 0.0044508 Eth | $207,529.00 18,627.560 LINK | 0.0993% |
57 | Coinbase Exchange | LINK-GBP | $11.16 0.0044575 Eth | $201,180.00 18,024.580 LINK | 0.0961% |
58 | BYDFi | LINK-USDC | $11.07 0.0044444 Eth | $200,530.00 18,121.690 LINK | 0.0966% |
59 | Slex | LINK-ETH | $11.17 0.0044623 Eth | $195,780.00 17,856.260 LINK | 0.0952% |
60 | Coinbase Exchange | LINK-EUR | $11.12 0.0044417 Eth | $186,542.00 16,769.310 LINK | 0.0894% |
61 | BitDelta | LINK-USDT | $11.15 0.0044541 Eth | $165,935.00 15,578.000 LINK | 0.0831% |
62 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.20 0.0044723 Eth | $164,433.00 14,962.053 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0798% |
63 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.16 0.0044565 Eth | $136,283.00 131,073.066 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.6990% |
64 | Binance | LINK-ETH | $11.06 0.0044413 Eth | $133,449.00 12,194.710 LINK | 0.0650% |
65 | OKX | LINK-USDC | $11.17 0.0044618 Eth | $123,512.00 11,466.966 LINK | 0.0612% |
66 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.06 0.0044189 Eth | $119,549.00 10,974.890 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0585% |
67 | Binance | LINK-EUR | $11.16 0.0044551 Eth | $114,476.00 10,736.780 LINK | 0.0573% |
68 | Bitci TR | LINK-TRY | $11.10 0.0044525 Eth | $110,107.00 10,297.970 LINK | 0.0549% |
69 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $11.13 0.0044440 Eth | $110,043.00 10,327.977 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0551% |
70 | Slex | LINK-BTC | $11.15 0.0044544 Eth | $77,907.00 7,078.200 LINK | 0.0377% |
71 | Binance | LINK-TRY | $11.13 0.0044666 Eth | $77,427.00 7,189.050 LINK | 0.0383% |
72 | Bitkub | LINK-THB | $11.15 0.0044540 Eth | $76,101.00 6,826.794 LINK | 0.0364% |
73 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.12 0.0044419 Eth | $71,862.00 69,116.561 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3686% |
74 | GMO Japan | LINK-JPY | $11.17 0.0044601 Eth | $71,375.00 6,389.800 LINK | 0.0341% |
75 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.11 0.0044380 Eth | $53,024.00 4,960.263 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0265% |
76 | Binance | LINK-BRL | $11.16 0.0044565 Eth | $52,517.00 4,823.870 LINK | 0.0257% |
77 | Kraken | LINK-GBP | $11.04 0.0044067 Eth | $51,553.00 4,671.175 LINK | 0.0249% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.16 0.0044565 Eth | $50,072.00 4,665.158 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0249% |
79 | Mercado Bitcoin | LINK-BRL | $11.15 0.0044541 Eth | $37,391.00 3,351.973 LINK | 0.0179% |
80 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.99 0.0043904 Eth | $33,841.00 32,909.542 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1755% |
81 | Binance | LINK-BNB | $11.09 0.0044523 Eth | $31,677.00 2,918.623 LINK | 0.0156% |
82 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.13 0.0044477 Eth | $30,577.00 2,779.697 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0148% |
83 | KuCoin | LINK-USDC | $11.17 0.0044625 Eth | $28,694.00 2,569.309 LINK | 0.0137% |
84 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $11.14 0.0044466 Eth | $26,487.00 2,400.169 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0128% |
85 | Binance US | LINK-USDT | $11.08 0.0044255 Eth | $24,665.00 2,226.938 LINK | 0.0119% |
86 | EXMO | LINK-BTC | $11.19 0.0044699 Eth | $24,591.00 2,197.790 LINK | 0.0117% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.11 0.0044502 Eth | $18,881.84 1,728.808 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0092% |
88 | Nonkyc.io | LINK-BTC | $11.13 0.0044690 Eth | $18,054.94 1,648.568 LINK | 0.0088% |
89 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.11 0.0044380 Eth | $17,639.20 16,988.442 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0906% |
90 | CoinEx | LINK-BTC | $11.13 0.0044425 Eth | $17,445.53 1,568.387 LINK | 0.0084% |
91 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $11.11 0.0044380 Eth | $14,461.27 1,317.867 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0070% |
92 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.18 0.0044631 Eth | $13,699.55 1,227.501 0X5947BB275C521040051D82396192181B413227A3 | 0.0065% |
93 | Coinone | LINK-KRW | $11.19 0.0044682 Eth | $12,974.95 1,159.710 LINK | 0.0062% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.08 0.0044263 Eth | $12,159.43 1,111.481 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0059% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.13 0.0044564 Eth | $11,125.64 1,034.630 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0055% |
96 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD93F7E271CB87C23AAA73EDC008A79646D1F9912 | $11.05 0.0044139 Eth | $11,013.24 981.302 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0052% |
97 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.08 0.0044248 Eth | $9,039.12 807.420 0X5947BB275C521040051D82396192181B413227A3 | 0.0043% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.16 0.0044572 Eth | $7,535.54 685.042 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0037% |
99 | HTX | LINK-BTC | $11.07 0.0044206 Eth | $5,608.13 506.738 LINK | 0.0027% |
100 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $11.10 0.0044509 Eth | $211.20 19.648 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0001% |
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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