ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
735,013 ( 0.001%)
Market
Price
$19.49 @ 0.007160 ETH (+4.34%)
Onchain Market Cap
$19,490,000,000.00
Circulating Supply Market Cap
$12,450,221,992.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | LINK-USDT | $19.46 0.0071480 Eth | $63,691,603.00 3,304,289.310 LINK | 18.7182% |
2 | ![]() | LINK-USDT | $19.48 0.0071447 Eth | $35,821,506.00 1,838,704.140 LINK | 10.4159% |
3 | ![]() | LINK-USD | $19.46 0.0071427 Eth | $34,798,790.00 1,788,589.100 LINK | 10.1320% |
4 | ![]() | LINK-USDT | $19.47 0.0071508 Eth | $26,399,462.00 1,370,915.356 LINK | 7.7660% |
5 | ![]() | LINK-USDT | $19.47 0.0071501 Eth | $19,745,479.00 1,029,275.038 LINK | 5.8306% |
6 | ![]() | LINK-USDT | $19.46 0.0071472 Eth | $12,965,166.00 666,279.730 LINK | 3.7743% |
7 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.54 0.0071756 Eth | $10,916,485.00 562,856.476 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 3.1885% |
8 | ![]() | LINK-USDT | $19.46 0.0071479 Eth | $9,472,305.00 491,451.753 LINK | 2.7840% |
9 | ![]() | LINK-USDT | $19.46 0.0071468 Eth | $6,665,268.00 345,003.140 LINK | 1.9544% |
10 | ![]() | LINK-USDC | $19.47 0.0071475 Eth | $6,507,335.00 337,208.630 LINK | 1.9102% |
11 | ![]() | LINK-USDT | $19.46 0.0071464 Eth | $6,381,237.00 331,066.270 LINK | 1.8754% |
12 | ![]() | LINK-USDT | $19.47 0.0071463 Eth | $5,674,694.00 291,444.750 LINK | 1.6510% |
13 | ![]() | LINK-USDT | $19.51 0.0071505 Eth | $5,641,702.00 292,961.040 LINK | 1.6596% |
14 | ![]() | LINK-USDT | $19.46 0.0071462 Eth | $5,632,503.00 289,444.209 LINK | 1.6396% |
15 | ![]() | LINK-USDT | $19.47 0.0071494 Eth | $5,064,103.00 260,064.450 LINK | 1.4732% |
16 | ![]() | LINK-USDT | $19.61 0.0071779 Eth | $5,057,986.00 257,985.790 LINK | 1.4614% |
17 | ![]() | LINK-FDUSD | $19.46 0.0071381 Eth | $4,598,667.00 238,837.370 LINK | 1.3530% |
18 | ![]() | LINK-USDT | $19.48 0.0071531 Eth | $4,316,013.00 221,532.710 LINK | 1.2549% |
19 | ![]() | LINK-USD | $19.47 0.0071482 Eth | $3,935,189.00 202,166.397 LINK | 1.1452% |
20 | ![]() | LINK-USDT | $19.61 0.0071784 Eth | $3,734,602.00 193,666.557 LINK | 1.0971% |
21 | ![]() | LINK-USDT | $19.44 0.0071387 Eth | $3,595,686.00 184,939.850 LINK | 1.0476% |
22 | ![]() | LINK-USDT | $19.49 0.0071552 Eth | $3,205,909.00 164,511.320 LINK | 0.9319% |
23 | ![]() | LINK-USDT | $19.45 0.0071414 Eth | $3,169,331.00 162,927.343 LINK | 0.9230% |
24 | ![]() | LINK-USDT | $19.48 0.0071531 Eth | $2,575,182.00 133,607.781 LINK | 0.7569% |
25 | ![]() | LINK-EUR | $19.50 0.0071606 Eth | $2,567,084.00 131,628.540 LINK | 0.7457% |
26 | ![]() | LINK-USDT | $19.45 0.0071434 Eth | $2,072,669.00 107,755.365 LINK | 0.6104% |
27 | ![]() | LINK-USDT | $19.49 0.0071581 Eth | $2,060,845.00 105,726.530 LINK | 0.5989% |
28 | ![]() | LINK-USDC | $19.46 0.0071424 Eth | $1,945,765.00 99,989.680 LINK | 0.5664% |
29 | ![]() | LINK-EUR | $19.48 0.0071514 Eth | $1,935,293.00 99,329.359 LINK | 0.5627% |
30 | ![]() | LINK-USDT | $19.47 0.0071470 Eth | $1,699,194.00 87,601.782 LINK | 0.4962% |
31 | ![]() | LINK-GBP | $19.47 0.0071505 Eth | $1,663,721.00 85,428.720 LINK | 0.4839% |
32 | ![]() | LINK-USDT | $19.48 0.0071516 Eth | $1,571,274.00 81,740.640 LINK | 0.4630% |
33 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.50 0.0071601 Eth | $1,471,629.00 76,400.781 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4328% |
34 | ![]() | LINK-ETH | $19.56 0.0071637 Eth | $1,266,286.00 65,766.400 LINK | 0.3726% |
35 | ![]() | LINK-BTC | $19.47 0.0071504 Eth | $1,080,586.00 55,982.000 LINK | 0.3171% |
36 | ![]() | LINK-USDT | $19.47 0.0071474 Eth | $1,004,916.00 52,125.217 LINK | 0.2953% |
37 | ![]() | LINK-USDC | $19.48 0.0071528 Eth | $823,013.00 42,895.400 LINK | 0.2430% |
38 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.50 0.0071603 Eth | $774,372.00 40,388.252 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2288% |
39 | ![]() | LINK-USDT | $19.46 0.0071442 Eth | $751,395.00 39,160.140 LINK | 0.2218% |
40 | ![]() | LINK-USDT | $19.48 0.0071550 Eth | $726,899.00 37,312.452 LINK | 0.2114% |
41 | ![]() | LINK-USDT | $19.48 0.0071524 Eth | $682,715.00 35,042.610 LINK | 0.1985% |
42 | ![]() | LINK-BTC | $19.46 0.0071450 Eth | $652,113.00 33,510.274 LINK | 0.1898% |
43 | ![]() | LINK-EUR | $19.51 0.0071637 Eth | $648,677.00 33,669.610 LINK | 0.1907% |
44 | ![]() | LINK-USD | $19.48 0.0071557 Eth | $643,695.00 33,040.050 LINK | 0.1872% |
45 | ![]() | LINK-BTC | $19.47 0.0071463 Eth | $598,461.00 30,736.290 LINK | 0.1741% |
46 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $19.45 0.0071398 Eth | $583,096.00 30,230.745 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1713% |
47 | ![]() | LINK-JPY | $19.56 0.0071855 Eth | $579,462.00 29,619.785 LINK | 0.1678% |
48 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.46 0.0071445 Eth | $579,404.00 574,685.700 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 3.2555% |
49 | ![]() | LINK-USDT | $19.43 0.0071302 Eth | $571,968.00 29,443.610 LINK | 0.1668% |
50 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.45 0.0071420 Eth | $563,485.00 29,159.207 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1652% |
51 | ![]() | LINK-TRY | $19.61 0.0071799 Eth | $543,835.00 28,308.340 LINK | 0.1604% |
52 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.54 0.0071760 Eth | $541,999.00 28,237.505 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1600% |
53 | ![]() | LINK-USDC | $19.57 0.0071669 Eth | $500,210.00 25,939.647 LINK | 0.1469% |
54 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.49 0.0071565 Eth | $489,608.00 25,218.620 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1429% |
55 | ![]() | LINK-USDT | $19.48 0.0071514 Eth | $446,759.00 23,194.798 LINK | 0.1314% |
56 | ![]() | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.54 0.0071756 Eth | $406,621.00 39,809.428 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2255% |
57 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.49 0.0071545 Eth | $394,871.00 20,422.061 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1157% |
58 | ![]() | LINK-USDC | $19.48 0.0071536 Eth | $391,467.00 20,324.052 LINK | 0.1151% |
59 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.40 0.0071248 Eth | $344,150.00 17,899.217 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1014% |
60 | ![]() | LINK-USDC | $19.46 0.0071474 Eth | $266,454.00 13,791.758 LINK | 0.0781% |
61 | ![]() | LINK-BTC | $19.46 0.0071461 Eth | $266,294.00 13,682.100 LINK | 0.0775% |
62 | ![]() | LINK-USDT | $19.46 0.0071461 Eth | $230,533.00 12,009.000 LINK | 0.0680% |
63 | ![]() | LINK-BTC | $19.46 0.0071472 Eth | $225,134.00 11,567.583 LINK | 0.0655% |
64 | ![]() | LINK-TRY | $19.46 0.0071446 Eth | $196,589.00 10,275.140 LINK | 0.0582% |
65 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.54 0.0071756 Eth | $189,837.00 9,789.717 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0555% |
66 | ![]() | LINK-JPY | $19.46 0.0071240 Eth | $185,590.00 9,537.700 LINK | 0.0540% |
67 | ![]() | LINK-TRY | $19.50 0.0071633 Eth | $159,791.00 8,344.430 LINK | 0.0473% |
68 | ![]() | LINK-BTC | $19.54 0.0071572 Eth | $151,454.00 7,752.700 LINK | 0.0439% |
69 | ![]() | LINK-USDC | $19.48 0.0071515 Eth | $141,352.00 7,254.440 LINK | 0.0411% |
70 | ![]() | LINK-GBP | $19.63 0.0072087 Eth | $139,192.00 7,090.808 LINK | 0.0402% |
71 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.45 0.0071413 Eth | $137,888.00 7,161.289 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0406% |
72 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.44 0.0071371 Eth | $128,819.00 6,676.865 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0378% |
73 | ![]() | LINK-ETH | $19.52 0.0071677 Eth | $114,955.00 5,889.040 LINK | 0.0334% |
74 | ![]() | LINK-ETH | $19.47 0.0071492 Eth | $105,713.00 5,430.140 LINK | 0.0308% |
75 | ![]() | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $19.50 0.0071601 Eth | $101,065.00 99,682.368 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.5647% |
76 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.55 0.0071790 Eth | $97,640.00 96,254.620 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5453% |
77 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $19.51 0.0071636 Eth | $97,002.00 5,031.725 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0285% |
78 | ![]() | LINK-USDC | $19.59 0.0071953 Eth | $91,660.00 4,678.127 LINK | 0.0265% |
79 | ![]() | LINK-PLN | $19.60 0.0071957 Eth | $85,415.00 0.000 LINK | 0.0000% |
80 | ![]() | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $19.38 0.0071146 Eth | $76,660.00 3,974.599 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0225% |
81 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.55 0.0071790 Eth | $74,087.00 3,820.537 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0216% |
82 | ![]() | LINK-ETH | $19.46 0.0071465 Eth | $69,406.00 3,565.880 LINK | 0.0202% |
83 | ![]() | LINK-USDT | $19.48 0.0071534 Eth | $57,892.00 2,971.512 LINK | 0.0168% |
84 | ![]() | LINK-USD | $19.50 0.0071514 Eth | $50,530.00 2,591.399 LINK | 0.0147% |
85 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.44 0.0071385 Eth | $46,195.00 2,430.686 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0138% |
86 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $19.50 0.0071600 Eth | $44,332.00 2,296.778 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0130% |
87 | ![]() | LINK-ETH | $19.47 0.0071460 Eth | $42,933.00 2,205.150 LINK | 0.0125% |
88 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $19.55 0.0071774 Eth | $38,697.00 2,006.704 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0114% |
89 | ![]() | LINK-BTC | $19.54 0.0071738 Eth | $37,495.00 1,919.060 LINK | 0.0109% |
90 | ![]() | LINK-BTC | $19.50 0.0071598 Eth | $37,124.00 1,903.950 LINK | 0.0108% |
91 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.50 0.0071615 Eth | $33,862.00 1,751.216 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0099% |
92 | ![]() | LINK-IDR | $19.59 0.0071960 Eth | $23,495.00 1,199.235 LINK | 0.0068% |
93 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.54 0.0071758 Eth | $23,168.00 1,193.951 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0068% |
94 | ![]() | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $19.45 0.0071416 Eth | $22,430.00 30.239 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
95 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.47 0.0071484 Eth | $16,580.10 16,417.958 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0930% |
96 | ![]() | LINK-ETH | $19.51 0.0071506 Eth | $14,249.02 730.510 LINK | 0.0041% |
97 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $19.46 0.0071444 Eth | $13,954.58 724.553 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0041% |
98 | ![]() | LINK-TRY | $19.30 0.0070858 Eth | $12,212.60 632.819 LINK | 0.0036% |
99 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $19.57 0.0071871 Eth | $12,105.84 628.182 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0036% |
100 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $19.54 0.0071747 Eth | $9,598.02 495.503 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0028% |
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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