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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,892 ( 0.014%)
Market
Price
$18.72 @ 0.006908 ETH (-5.10%)
Onchain Market Cap
$18,720,000,000.00
Circulating Supply Market Cap
$11,984,494,977.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | LINK-USDT | $18.75 0.0069216 Eth | $87,581,260.00 4,607,574.310 LINK | 22.4036% |
2 | ![]() | LINK-USD | $18.72 0.0069189 Eth | $42,167,532.00 2,252,539.090 LINK | 10.9526% |
3 | ![]() | LINK-USDT | $18.75 0.0069213 Eth | $34,699,919.00 1,825,168.118 LINK | 8.8746% |
4 | ![]() | LINK-USDT | $18.73 0.0069135 Eth | $19,152,554.00 1,008,578.299 LINK | 4.9041% |
5 | ![]() | LINK-USDT | $18.68 0.0069051 Eth | $17,430,195.00 932,979.970 LINK | 4.5365% |
6 | ![]() | LINK-USDT | $18.73 0.0069142 Eth | $15,890,675.00 833,926.480 LINK | 4.0548% |
7 | ![]() | LINK-USDT | $18.74 0.0069161 Eth | $11,801,374.00 621,353.493 LINK | 3.0212% |
8 | ![]() | LINK-USDT | $18.73 0.0069134 Eth | $10,872,244.00 580,458.140 LINK | 2.8224% |
9 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $18.66 0.0068943 Eth | $10,637,523.00 567,717.679 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.7604% |
10 | ![]() | LINK-USDT | $18.73 0.0069146 Eth | $10,380,432.00 554,097.230 LINK | 2.6942% |
11 | ![]() | LINK-USDT | $18.72 0.0069198 Eth | $8,767,358.00 461,322.230 LINK | 2.2431% |
12 | ![]() | LINK-USDT | $18.75 0.0069238 Eth | $8,227,770.00 438,701.672 LINK | 2.1331% |
13 | ![]() | LINK-USDT | $18.73 0.0069202 Eth | $7,224,090.00 380,232.700 LINK | 1.8488% |
14 | ![]() | LINK-USDT | $18.74 0.0069096 Eth | $7,171,883.00 382,677.901 LINK | 1.8607% |
15 | ![]() | LINK-USDT | $18.75 0.0069237 Eth | $6,164,563.00 328,923.520 LINK | 1.5993% |
16 | ![]() | LINK-USD | $18.75 0.0069219 Eth | $5,921,545.00 315,796.042 LINK | 1.5355% |
17 | ![]() | LINK-USDT | $18.70 0.0069126 Eth | $5,800,687.00 310,146.260 LINK | 1.5080% |
18 | ![]() | LINK-USDT | $18.73 0.0069218 Eth | $5,578,614.00 297,769.770 LINK | 1.4479% |
19 | ![]() | LINK-USDC | $18.73 0.0069126 Eth | $5,392,452.00 284,004.930 LINK | 1.3809% |
20 | ![]() | LINK-USDT | $18.72 0.0069133 Eth | $5,197,571.00 273,457.407 LINK | 1.3296% |
21 | ![]() | LINK-USDT | $18.72 0.0069110 Eth | $4,829,260.00 257,918.850 LINK | 1.2541% |
22 | ![]() | LINK-USDT | $18.68 0.0069053 Eth | $4,416,873.00 236,391.809 LINK | 1.1494% |
23 | ![]() | LINK-EUR | $18.75 0.0069238 Eth | $3,882,658.00 207,021.022 LINK | 1.0066% |
24 | ![]() | LINK-USDT | $18.74 0.0069207 Eth | $3,524,282.00 185,647.594 LINK | 0.9027% |
25 | ![]() | LINK-USDT | $18.71 0.0069161 Eth | $2,762,228.00 147,599.950 LINK | 0.7177% |
26 | ![]() | LINK-USDT | $18.71 0.0069144 Eth | $2,278,221.00 119,819.782 LINK | 0.5826% |
27 | ![]() | LINK-EUR | $18.75 0.0069208 Eth | $1,972,683.00 105,220.860 LINK | 0.5116% |
28 | ![]() | LINK-USDT | $18.73 0.0069215 Eth | $1,735,928.00 91,250.670 LINK | 0.4437% |
29 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $18.67 0.0068962 Eth | $1,554,421.00 82,860.842 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4029% |
30 | ![]() | LINK-USDT | $18.70 0.0069127 Eth | $1,498,238.00 79,172.958 LINK | 0.3850% |
31 | ![]() | LINK-GBP | $18.69 0.0069048 Eth | $1,457,595.00 77,976.100 LINK | 0.3791% |
32 | ![]() | LINK-USDT | $18.75 0.0069216 Eth | $1,394,490.00 73,507.354 LINK | 0.3574% |
33 | ![]() | LINK-ETH | $18.70 0.0069093 Eth | $1,263,105.00 67,342.240 LINK | 0.3274% |
34 | ![]() | LINK-BTC | $18.72 0.0069172 Eth | $1,091,352.00 57,435.800 LINK | 0.2793% |
35 | ![]() | LINK-USDT | $18.67 0.0069016 Eth | $965,684.00 51,711.210 LINK | 0.2514% |
36 | ![]() | LINK-USDT | $18.76 0.0069267 Eth | $900,209.00 47,974.881 LINK | 0.2333% |
37 | ![]() | LINK-USDC | $18.72 0.0069121 Eth | $855,768.00 44,726.640 LINK | 0.2175% |
38 | ![]() | LINK-USDT | $18.75 0.0069212 Eth | $855,005.00 44,917.910 LINK | 0.2184% |
39 | ![]() | LINK-ETH | $18.71 0.0069073 Eth | $841,155.00 44,735.310 LINK | 0.2175% |
40 | ![]() | LINK-USD | $18.79 0.0069360 Eth | $797,033.00 42,413.617 LINK | 0.2062% |
41 | ![]() | LINK-USDC | $18.74 0.0069171 Eth | $706,783.00 37,265.914 LINK | 0.1812% |
42 | ![]() | LINK-USDT | $18.69 0.0069088 Eth | $704,920.00 37,711.820 LINK | 0.1834% |
43 | ![]() | LINK-USDT | $18.82 0.0069501 Eth | $702,006.00 37,304.770 LINK | 0.1814% |
44 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $18.68 0.0069002 Eth | $677,746.00 35,848.857 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1743% |
45 | ![]() | LINK-EUR | $18.80 0.0069366 Eth | $589,483.00 30,937.520 LINK | 0.1504% |
46 | ![]() | LINK-USDT | $18.72 0.0069161 Eth | $561,798.00 30,012.113 LINK | 0.1459% |
47 | ![]() | LINK-TRY | $18.73 0.0069015 Eth | $559,334.00 29,266.780 LINK | 0.1423% |
48 | ![]() | LINK-USDT | $18.72 0.0069152 Eth | $553,043.00 29,198.857 LINK | 0.1420% |
49 | ![]() | LINK-ETH | $18.84 0.0069534 Eth | $537,716.00 28,546.560 LINK | 0.1388% |
50 | ![]() | LINK-JPY | $18.74 0.0069266 Eth | $532,990.00 28,437.160 LINK | 0.1383% |
51 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $18.79 0.0069383 Eth | $507,531.00 26,672.943 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1297% |
52 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.67 0.0068951 Eth | $489,464.00 26,076.398 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1268% |
53 | ![]() | LINK-JPY | $18.68 0.0069039 Eth | $437,329.00 23,412.700 LINK | 0.1138% |
54 | ![]() | LINK-USDC | $18.78 0.0069209 Eth | $430,136.00 22,672.553 LINK | 0.1102% |
55 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $18.70 0.0069082 Eth | $397,023.00 21,225.596 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1032% |
56 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.68 0.0069002 Eth | $381,978.00 388,477.243 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.8889% |
57 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.71 0.0069115 Eth | $374,274.00 19,937.463 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0969% |
58 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $18.67 0.0068962 Eth | $347,754.00 18,359.910 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0893% |
59 | ![]() | LINK-USD | $18.71 0.0069145 Eth | $323,113.00 17,269.558 LINK | 0.0840% |
60 | ![]() | LINK-BTC | $18.78 0.0069354 Eth | $310,537.00 16,539.220 LINK | 0.0804% |
61 | ![]() | LINK-USDC | $18.71 0.0069041 Eth | $306,717.00 16,293.787 LINK | 0.0792% |
62 | ![]() | LINK-BTC | $18.78 0.0069186 Eth | $303,338.00 16,155.001 LINK | 0.0786% |
63 | ![]() | LINK-ETH | $18.72 0.0069118 Eth | $298,075.00 15,876.540 LINK | 0.0772% |
64 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.74 0.0069171 Eth | $292,315.00 15,558.835 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0757% |
65 | ![]() | LINK-USDT | $18.73 0.0069218 Eth | $272,536.00 14,326.000 LINK | 0.0697% |
66 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $18.71 0.0069128 Eth | $264,430.00 14,091.822 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0685% |
67 | ![]() | LINK-TRY | $18.72 0.0069051 Eth | $254,657.00 13,605.860 LINK | 0.0662% |
68 | ![]() | LINK-BTC | $18.74 0.0069176 Eth | $248,730.00 13,271.340 LINK | 0.0645% |
69 | ![]() | LINK-THB | $18.76 0.0069346 Eth | $239,256.00 12,750.487 LINK | 0.0620% |
70 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $18.66 0.0068978 Eth | $208,357.00 10,993.368 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0535% |
71 | ![]() | LINK-BTC | $18.72 0.0069108 Eth | $201,911.00 10,783.100 LINK | 0.0524% |
72 | ![]() | LINK-ETH | $18.70 0.0069044 Eth | $191,085.00 10,216.440 LINK | 0.0497% |
73 | ![]() | LINK-USDC | $18.69 0.0069004 Eth | $187,820.00 10,048.510 LINK | 0.0489% |
74 | ![]() | LINK-USD | $18.75 0.0069296 Eth | $187,486.00 9,998.779 LINK | 0.0486% |
75 | ![]() | LINK-USDC | $18.68 0.0068956 Eth | $177,311.00 9,490.230 LINK | 0.0461% |
76 | ![]() | LINK-BTC | $18.77 0.0069273 Eth | $149,061.00 7,942.180 LINK | 0.0386% |
77 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $18.70 0.0069071 Eth | $135,727.00 7,145.756 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0347% |
78 | ![]() | LINK-BRL | $18.82 0.0069488 Eth | $118,461.00 6,293.635 LINK | 0.0306% |
79 | ![]() | LINK-BTC | $18.75 0.0069210 Eth | $107,484.00 5,684.417 LINK | 0.0276% |
80 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $18.71 0.0069128 Eth | $103,723.00 5,487.013 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0267% |
81 | ![]() | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $18.84 0.0069608 Eth | $76,246.00 4,052.905 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0197% |
82 | ![]() | LINK-ETH | $18.72 0.0069106 Eth | $69,233.00 3,697.800 LINK | 0.0180% |
83 | ![]() | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $18.57 0.0068569 Eth | $63,877.00 3,434.799 0X5947BB275C521040051D82396192181B413227A3 | 0.0167% |
84 | ![]() | LINK-BTC | $18.81 0.0069453 Eth | $59,276.00 3,150.555 LINK | 0.0153% |
85 | ![]() | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $18.67 0.0068962 Eth | $58,176.00 59,221.274 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2880% |
86 | ![]() | LINK-ETH | $18.70 0.0069113 Eth | $57,041.00 3,050.190 LINK | 0.0148% |
87 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $18.80 0.0069395 Eth | $48,590.00 2,550.666 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0124% |
88 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $18.83 0.0069555 Eth | $48,174.00 2,541.190 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0124% |
89 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $18.72 0.0069087 Eth | $46,029.00 2,452.144 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0119% |
90 | ![]() | LINK-IDR | $18.75 0.0069226 Eth | $36,045.00 1,922.071 LINK | 0.0093% |
91 | ![]() | LINK-BTC | $18.79 0.0069352 Eth | $28,636.00 1,524.047 LINK | 0.0074% |
92 | ![]() | LINK-ETH | $18.69 0.0069031 Eth | $25,793.00 1,379.960 LINK | 0.0067% |
93 | ![]() | LINK-TRY | $18.59 0.0068545 Eth | $25,568.00 1,375.705 LINK | 0.0067% |
94 | ![]() | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $18.77 0.0069295 Eth | $21,552.00 34.832 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
95 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $18.80 0.0069429 Eth | $19,561.53 1,029.895 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0050% |
96 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $18.79 0.0069335 Eth | $19,026.89 1,595.653 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0078% |
97 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $18.68 0.0069002 Eth | $18,043.11 961.862 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0047% |
98 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.70 0.0069095 Eth | $16,189.56 16,414.612 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.0798% |
99 | ![]() | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $18.74 0.0069213 Eth | $14,909.33 802.141 0X5947BB275C521040051D82396192181B413227A3 | 0.0039% |
100 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $18.69 0.0069011 Eth | $14,682.04 770.125 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0037% |
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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