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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,983 ( 0.022%)
Market
Price
$19.24 @ 0.006975 ETH (-1.14%)
Onchain Market Cap
$19,240,000,000.00
Circulating Supply Market Cap
$12,276,245,802.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
111.08835293 LINKValue
$2,137.34 ( ~0.77484684300391 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $19.21 0.0069739 Eth | $93,789,896.00 4,965,529.730 LINK | 22.0833% |
2 | Coinbase Exchange | LINK-USD | $19.25 0.0069761 Eth | $43,602,121.00 2,265,280.610 LINK | 10.0744% |
3 | Bybit | LINK-USDT | $19.21 0.0069640 Eth | $34,692,421.00 1,840,495.882 LINK | 8.1853% |
4 | HTX | LINK-USDT | $19.23 0.0069710 Eth | $20,785,090.00 1,102,347.901 LINK | 4.9025% |
5 | P2B | LINK-USDT | $19.23 0.0069713 Eth | $19,291,051.00 1,003,282.090 LINK | 4.4619% |
6 | Slex | LINK-USDT | $19.20 0.0069606 Eth | $16,207,125.00 858,856.250 LINK | 3.8196% |
7 | Gate.io | LINK-USDT | $19.22 0.0069665 Eth | $13,545,508.00 718,230.720 LINK | 3.1942% |
8 | OKX | LINK-USDT | $19.24 0.0069743 Eth | $13,265,954.00 703,807.023 LINK | 3.1301% |
9 | DigiFinex | LINK-USDT | $19.22 0.0069653 Eth | $12,026,130.00 625,768.610 LINK | 2.7830% |
10 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.16 0.0069443 Eth | $10,531,602.00 552,223.533 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.4559% |
11 | MEXC | LINK-USDT | $19.23 0.0069665 Eth | $9,491,331.00 493,694.180 LINK | 2.1956% |
12 | XT.COM | LINK-USDT | $19.25 0.0069718 Eth | $9,284,293.00 491,828.320 LINK | 2.1873% |
13 | KuCoin | LINK-USDT | $19.24 0.0069722 Eth | $8,155,247.00 423,975.363 LINK | 1.8856% |
14 | Coinstore | LINK-USDT | $19.21 0.0069583 Eth | $7,678,463.00 406,939.980 LINK | 1.8098% |
15 | BTSE | LINK-USDT | $19.24 0.0069710 Eth | $7,309,267.00 379,815.042 LINK | 1.6892% |
16 | Binance | LINK-USDC | $19.21 0.0069702 Eth | $7,247,210.00 382,066.500 LINK | 1.6992% |
17 | Bitunix | LINK-USDT | $19.22 0.0069697 Eth | $6,824,139.00 355,104.690 LINK | 1.5793% |
18 | CoinW | LINK-USDT | $19.17 0.0069632 Eth | $6,325,922.00 330,061.480 LINK | 1.4679% |
19 | Hotcoin | LINK-USDT | $19.24 0.0069688 Eth | $5,688,011.00 295,661.940 LINK | 1.3149% |
20 | Kraken | LINK-USD | $19.24 0.0069743 Eth | $5,633,254.00 292,742.257 LINK | 1.3019% |
21 | Azbit | LINK-USDT | $19.25 0.0069728 Eth | $5,504,573.00 291,588.061 LINK | 1.2968% |
22 | BYDFi | LINK-USDT | $19.22 0.0069661 Eth | $5,312,204.00 276,384.000 LINK | 1.2292% |
23 | Binance | LINK-FDUSD | $19.26 0.0069844 Eth | $5,029,411.00 264,372.420 LINK | 1.1758% |
24 | LATOKEN | LINK-USDT | $19.22 0.0069650 Eth | $4,677,855.00 243,326.363 LINK | 1.0822% |
25 | Bitvavo | LINK-EUR | $19.22 0.0069645 Eth | $4,295,858.00 223,506.050 LINK | 0.9940% |
26 | QMall | LINK-USDT | $19.23 0.0069698 Eth | $3,826,088.00 202,746.990 LINK | 0.9017% |
27 | Dex-Trade | LINK-USDT | $19.23 0.0069713 Eth | $3,047,929.00 158,515.600 LINK | 0.7050% |
28 | Coinbase Exchange | LINK-EUR | $19.26 0.0069807 Eth | $2,480,421.00 128,795.670 LINK | 0.5728% |
29 | FMCPAY | LINK-USDT | $19.25 0.0069731 Eth | $2,349,690.00 124,502.572 LINK | 0.5537% |
30 | Biconomy.com | LINK-USDT | $19.21 0.0069707 Eth | $1,809,694.00 95,926.790 LINK | 0.4266% |
31 | CoinEx | LINK-USDT | $19.22 0.0069626 Eth | $1,530,152.00 81,346.439 LINK | 0.3618% |
32 | PointPay | LINK-USDT | $19.22 0.0069679 Eth | $1,479,123.00 78,468.596 LINK | 0.3490% |
33 | Coinbase Exchange | LINK-GBP | $19.24 0.0069715 Eth | $1,377,141.00 71,559.820 LINK | 0.3183% |
34 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.21 0.0069583 Eth | $1,358,162.00 70,986.369 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3157% |
35 | FMCPAY | LINK-ETH | $19.22 0.0069660 Eth | $1,285,694.00 67,208.640 LINK | 0.2989% |
36 | FMCPAY | LINK-BTC | $19.19 0.0069566 Eth | $1,141,651.00 60,048.900 LINK | 0.2671% |
37 | Phemex | LINK-USDT | $19.23 0.0069660 Eth | $1,066,618.00 55,473.660 LINK | 0.2467% |
38 | EXMO | LINK-USDT | $19.25 0.0069739 Eth | $944,604.00 49,064.374 LINK | 0.2182% |
39 | Trubit | LINK-USDT | $19.17 0.0069603 Eth | $852,965.00 45,200.110 LINK | 0.2010% |
40 | tanX | LINK-USDC | $19.20 0.0069556 Eth | $828,777.00 43,782.530 LINK | 0.1947% |
41 | Gemini | LINK-USD | $19.21 0.0069628 Eth | $782,998.00 40,757.526 LINK | 0.1813% |
42 | BitStorage | LINK-USDT | $19.20 0.0069604 Eth | $777,871.00 40,518.500 LINK | 0.1802% |
43 | Bybit | LINK-USDC | $19.24 0.0069716 Eth | $750,256.00 39,808.697 LINK | 0.1770% |
44 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $19.25 0.0069738 Eth | $729,720.00 38,723.809 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1722% |
45 | BigONE | LINK-USDT | $19.31 0.0069967 Eth | $720,591.00 37,313.000 LINK | 0.1659% |
46 | Coinbase Exchange | LINK-USDT | $19.20 0.0069552 Eth | $641,470.00 33,414.352 LINK | 0.1486% |
47 | Binance | LINK-TRY | $19.27 0.0069805 Eth | $611,326.00 32,257.900 LINK | 0.1435% |
48 | Binance | LINK-EUR | $19.20 0.0069739 Eth | $594,732.00 31,478.250 LINK | 0.1400% |
49 | QMall | LINK-USDC | $19.21 0.0069655 Eth | $582,231.00 30,730.631 LINK | 0.1367% |
50 | Coinbase Exchange | LINK-ETH | $19.22 0.0069659 Eth | $579,395.00 30,149.020 LINK | 0.1341% |
51 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.20 0.0069562 Eth | $578,747.00 17,745.018 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0789% |
52 | GMO Japan | LINK-JPY | $19.27 0.0069789 Eth | $560,637.00 29,099.700 LINK | 0.1294% |
53 | EarnBIT | LINK-USDT | $19.26 0.0069775 Eth | $551,073.00 29,239.844 LINK | 0.1300% |
54 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.21 0.0069583 Eth | $530,490.00 27,720.845 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1233% |
55 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.24 0.0069715 Eth | $529,407.00 27,610.517 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1228% |
56 | Bitbank | LINK-JPY | $19.30 0.0069908 Eth | $522,454.00 27,071.595 LINK | 0.1204% |
57 | Coinbase Exchange | LINK-BTC | $19.19 0.0069513 Eth | $496,655.00 25,881.250 LINK | 0.1151% |
58 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.27 0.0069796 Eth | $486,408.00 25,551.605 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1136% |
59 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.18 0.0069470 Eth | $465,801.00 24,364.240 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1084% |
60 | LATOKEN | LINK-BTC | $19.22 0.0069629 Eth | $413,822.00 21,532.159 LINK | 0.0958% |
61 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.17 0.0069454 Eth | $402,506.00 20,888.445 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0929% |
62 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.14 0.0069321 Eth | $384,080.00 378,406.599 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.6829% |
63 | OKX | LINK-USDC | $19.22 0.0069635 Eth | $367,277.00 19,497.904 LINK | 0.0867% |
64 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.21 0.0069606 Eth | $356,071.00 18,626.094 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0828% |
65 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.26 0.0069764 Eth | $351,308.00 18,631.066 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0829% |
66 | itBit | LINK-USD | $19.24 0.0069715 Eth | $332,083.00 17,260.027 LINK | 0.0768% |
67 | Slex | LINK-ETH | $19.21 0.0069641 Eth | $310,502.00 16,233.140 LINK | 0.0722% |
68 | BitDelta | LINK-USDT | $19.25 0.0069722 Eth | $286,159.00 15,151.000 LINK | 0.0674% |
69 | WhiteBIT | LINK-TRY | $19.23 0.0069728 Eth | $260,716.00 13,557.960 LINK | 0.0603% |
70 | Bitkub | LINK-THB | $19.17 0.0069443 Eth | $253,038.00 13,199.399 LINK | 0.0587% |
71 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.21 0.0069670 Eth | $218,086.00 11,549.251 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0514% |
72 | Hotcoin | LINK-BTC | $19.25 0.0069722 Eth | $209,164.00 10,867.710 LINK | 0.0483% |
73 | bitcastle | LINK-USDT | $19.25 0.0069731 Eth | $189,573.00 10,046.620 LINK | 0.0447% |
74 | BYDFi | LINK-USDC | $19.17 0.0069455 Eth | $179,864.00 9,382.260 LINK | 0.0417% |
75 | PointPay | LINK-BTC | $19.24 0.0069716 Eth | $156,197.00 8,194.177 LINK | 0.0364% |
76 | BitStorage | LINK-ETH | $19.22 0.0069631 Eth | $152,282.00 7,922.470 LINK | 0.0352% |
77 | KuCoin | LINK-USDC | $19.27 0.0069850 Eth | $150,852.00 7,828.123 LINK | 0.0348% |
78 | WhiteBIT | LINK-BTC | $19.28 0.0069860 Eth | $148,829.00 7,717.510 LINK | 0.0343% |
79 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.20 0.0069560 Eth | $139,499.00 7,400.379 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0329% |
80 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.24 0.0069726 Eth | $139,313.00 15,050.416 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0669% |
81 | Mercado Bitcoin | LINK-BRL | $19.29 0.0069897 Eth | $125,730.00 6,516.241 LINK | 0.0290% |
82 | Bitso | LINK-USD | $19.18 0.0069481 Eth | $124,301.00 6,480.472 LINK | 0.0288% |
83 | Kraken | LINK-GBP | $19.18 0.0069519 Eth | $118,115.00 6,157.845 LINK | 0.0274% |
84 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $19.23 0.0069649 Eth | $113,286.00 5,958.725 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0265% |
85 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $19.16 0.0069410 Eth | $77,153.00 4,021.735 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0179% |
86 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $19.15 0.0069353 Eth | $70,554.00 3,703.285 0X5947BB275C521040051D82396192181B413227A3 | 0.0165% |
87 | Binance US | LINK-USDT | $19.19 0.0069510 Eth | $65,364.00 3,406.982 LINK | 0.0152% |
88 | Hotcoin | LINK-ETH | $19.23 0.0069691 Eth | $58,189.00 3,026.520 LINK | 0.0135% |
89 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $19.21 0.0069583 Eth | $57,300.00 56,178.817 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2498% |
90 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $19.20 0.0069581 Eth | $49,791.00 2,640.791 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0117% |
91 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.19 0.0069538 Eth | $43,127.00 2,259.691 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0100% |
92 | CoinEx | LINK-USDC | $19.30 0.0069923 Eth | $38,203.00 2,049.878 LINK | 0.0091% |
93 | Indodax | LINK-IDR | $19.26 0.0069938 Eth | $29,331.00 1,523.045 LINK | 0.0068% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $19.28 0.0069856 Eth | $21,577.00 1,708.948 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0076% |
95 | Dex-Trade | LINK-ETH | $19.21 0.0069616 Eth | $20,205.00 1,051.540 LINK | 0.0047% |
96 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $19.24 0.0069725 Eth | $19,639.74 30.669 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
97 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $19.32 0.0069983 Eth | $19,245.36 1,015.474 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0045% |
98 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.23 0.0069652 Eth | $17,426.50 17,066.028 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0759% |
99 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $19.21 0.0069569 Eth | $16,472.62 862.562 0X5947BB275C521040051D82396192181B413227A3 | 0.0038% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.14 0.0069317 Eth | $16,433.92 856.325 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0038% |
Contract Source Code Verified (Exact Match)
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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