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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
733,392 ( 0.033%)
Market
Price
$18.81 @ 0.007022 ETH (+2.19%)
Onchain Market Cap
$18,810,000,000.00
Circulating Supply Market Cap
$12,002,265,333.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | LINK-USDT | $18.82 0.0070405 Eth | $85,885,018.00 4,669,843.480 LINK | 22.6521% |
2 | ![]() | LINK-USD | $18.88 0.0070565 Eth | $35,038,895.00 1,856,365.290 LINK | 9.0047% |
3 | ![]() | LINK-USDT | $18.88 0.0070570 Eth | $31,421,446.00 1,712,278.083 LINK | 8.3058% |
4 | ![]() | LINK-USDT | $18.90 0.0070633 Eth | $18,079,567.00 977,063.384 LINK | 4.7395% |
5 | ![]() | LINK-USDT | $18.87 0.0070550 Eth | $16,996,041.00 900,595.710 LINK | 4.3685% |
6 | ![]() | LINK-USDT | $18.79 0.0070344 Eth | $15,727,892.00 848,211.360 LINK | 4.1144% |
7 | ![]() | LINK-USDT | $18.90 0.0070635 Eth | $10,899,911.00 576,825.470 LINK | 2.7980% |
8 | ![]() | LINK-USDT | $18.87 0.0070552 Eth | $10,700,186.00 580,540.870 LINK | 2.8160% |
9 | ![]() | LINK-USDT | $18.87 0.0070559 Eth | $10,378,955.00 566,753.440 LINK | 2.7492% |
10 | ![]() | LINK-USDT | $18.89 0.0070659 Eth | $9,025,654.00 477,720.290 LINK | 2.3173% |
11 | ![]() | LINK-USDT | $18.86 0.0070531 Eth | $8,516,775.00 463,026.080 LINK | 2.2460% |
12 | ![]() | LINK-USDT | $18.83 0.0070399 Eth | $7,319,704.00 397,604.690 LINK | 1.9287% |
13 | ![]() | LINK-USDT | $18.86 0.0070533 Eth | $6,953,503.00 368,675.817 LINK | 1.7883% |
14 | ![]() | LINK-USDT | $18.90 0.0070645 Eth | $6,201,538.00 328,066.810 LINK | 1.5914% |
15 | ![]() | LINK-USDT | $18.87 0.0070581 Eth | $6,190,521.00 328,023.740 LINK | 1.5912% |
16 | ![]() | LINK-USDC | $18.91 0.0070688 Eth | $6,072,840.00 331,127.730 LINK | 1.6062% |
17 | ![]() | LINK-FDUSD | $18.85 0.0070503 Eth | $5,833,680.00 316,336.290 LINK | 1.5345% |
18 | ![]() | LINK-USDT | $18.86 0.0070546 Eth | $5,753,608.00 305,018.370 LINK | 1.4796% |
19 | ![]() | LINK-USDT | $18.89 0.0070606 Eth | $5,672,561.00 300,342.560 LINK | 1.4569% |
20 | ![]() | LINK-USDT | $18.84 0.0070557 Eth | $4,924,472.00 261,344.130 LINK | 1.2677% |
21 | ![]() | LINK-USD | $18.88 0.0070596 Eth | $4,478,308.00 237,145.617 LINK | 1.1503% |
22 | ![]() | LINK-USDT | $18.88 0.0070576 Eth | $4,188,589.00 221,863.824 LINK | 1.0762% |
23 | ![]() | LINK-EUR | $18.82 0.0070452 Eth | $4,023,476.00 213,767.803 LINK | 1.0369% |
24 | ![]() | LINK-EUR | $18.90 0.0070664 Eth | $3,884,601.00 205,496.670 LINK | 0.9968% |
25 | ![]() | LINK-USDT | $18.86 0.0070552 Eth | $3,496,756.00 190,224.698 LINK | 0.9227% |
26 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $18.85 0.0070457 Eth | $3,020,848.00 161,439.740 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.7831% |
27 | ![]() | LINK-USDT | $18.87 0.0070550 Eth | $2,865,865.00 151,858.072 LINK | 0.7366% |
28 | ![]() | LINK-USDT | $18.82 0.0070450 Eth | $2,747,038.00 145,982.760 LINK | 0.7081% |
29 | ![]() | LINK-USDT | $18.87 0.0070552 Eth | $2,451,825.00 132,797.537 LINK | 0.6442% |
30 | ![]() | LINK-GBP | $18.88 0.0070587 Eth | $1,985,518.00 105,192.390 LINK | 0.5103% |
31 | ![]() | LINK-USDT | $18.87 0.0070585 Eth | $1,559,816.00 84,494.210 LINK | 0.4099% |
32 | ![]() | LINK-ETH | $18.87 0.0070551 Eth | $1,356,659.00 72,338.560 LINK | 0.3509% |
33 | ![]() | LINK-USDT | $18.85 0.0070514 Eth | $1,307,868.00 71,104.473 LINK | 0.3449% |
34 | ![]() | LINK-USDT | $18.84 0.0070450 Eth | $1,300,873.00 70,376.160 LINK | 0.3414% |
35 | ![]() | LINK-BTC | $18.85 0.0070605 Eth | $1,109,089.00 59,789.900 LINK | 0.2900% |
36 | ![]() | LINK-USDT | $18.86 0.0070522 Eth | $966,548.00 52,192.170 LINK | 0.2532% |
37 | ![]() | LINK-USDT | $18.87 0.0070552 Eth | $960,291.00 50,883.210 LINK | 0.2468% |
38 | ![]() | LINK-USDT | $18.88 0.0070590 Eth | $894,268.00 47,356.674 LINK | 0.2297% |
39 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $18.89 0.0070608 Eth | $844,056.00 46,089.582 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2236% |
40 | ![]() | LINK-USDT | $18.81 0.0070370 Eth | $842,766.00 44,797.145 LINK | 0.2173% |
41 | ![]() | LINK-USDC | $18.89 0.0070637 Eth | $813,775.00 43,990.440 LINK | 0.2134% |
42 | ![]() | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $18.89 0.0070649 Eth | $804,239.00 85,378.626 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.4141% |
43 | ![]() | LINK-USDT | $18.89 0.0070662 Eth | $783,579.00 41,475.310 LINK | 0.2012% |
44 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.89 0.0070608 Eth | $778,647.00 41,610.338 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2018% |
45 | ![]() | LINK-JPY | $18.92 0.0070747 Eth | $750,371.00 39,650.633 LINK | 0.1923% |
46 | ![]() | LINK-USDT | $18.88 0.0070589 Eth | $719,489.00 38,101.900 LINK | 0.1848% |
47 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $18.88 0.0070573 Eth | $637,139.00 33,626.566 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1631% |
48 | ![]() | LINK-TRY | $18.91 0.0070718 Eth | $610,868.00 32,303.400 LINK | 0.1567% |
49 | ![]() | LINK-TRY | $18.84 0.0070474 Eth | $597,231.00 32,345.060 LINK | 0.1569% |
50 | ![]() | LINK-EUR | $18.91 0.0070700 Eth | $539,320.00 29,365.730 LINK | 0.1424% |
51 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.86 0.0070514 Eth | $523,024.00 27,959.123 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1356% |
52 | ![]() | LINK-USDC | $18.89 0.0070606 Eth | $520,836.00 28,282.742 LINK | 0.1372% |
53 | ![]() | LINK-USDT | $18.90 0.0070659 Eth | $503,343.00 27,318.191 LINK | 0.1325% |
54 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $18.76 0.0070139 Eth | $498,495.00 27,403.672 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1329% |
55 | ![]() | LINK-USDC | $18.87 0.0070574 Eth | $484,773.00 26,423.073 LINK | 0.1282% |
56 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.89 0.0070608 Eth | $472,677.00 460,481.904 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.2337% |
57 | ![]() | LINK-BTC | $18.85 0.0070517 Eth | $415,183.00 22,021.140 LINK | 0.1068% |
58 | ![]() | LINK-USD | $18.83 0.0070424 Eth | $398,144.00 21,512.748 LINK | 0.1044% |
59 | ![]() | LINK-USD | $18.91 0.0070684 Eth | $385,213.00 20,371.431 LINK | 0.0988% |
60 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.90 0.0070640 Eth | $326,856.00 17,481.983 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0848% |
61 | ![]() | LINK-EUR | $18.84 0.0070445 Eth | $309,082.00 16,401.490 LINK | 0.0796% |
62 | ![]() | LINK-ETH | $18.86 0.0070507 Eth | $307,639.00 16,394.210 LINK | 0.0795% |
63 | ![]() | LINK-USDT | $18.87 0.0070585 Eth | $292,428.00 15,861.000 LINK | 0.0769% |
64 | ![]() | LINK-USDC | $18.87 0.0070546 Eth | $286,283.00 15,450.829 LINK | 0.0749% |
65 | ![]() | LINK-BTC | $18.89 0.0070627 Eth | $274,716.00 14,540.980 LINK | 0.0705% |
66 | ![]() | LINK-ETH | $18.89 0.0070626 Eth | $263,545.00 13,949.740 LINK | 0.0677% |
67 | ![]() | LINK-BTC | $18.88 0.0070579 Eth | $246,968.00 13,080.999 LINK | 0.0635% |
68 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $18.89 0.0070649 Eth | $241,634.00 13,225.700 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0642% |
69 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $18.89 0.0070613 Eth | $219,617.00 11,897.602 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0577% |
70 | ![]() | LINK-ETH | $18.87 0.0070580 Eth | $211,337.00 11,200.140 LINK | 0.0543% |
71 | ![]() | LINK-BTC | $18.87 0.0070569 Eth | $200,773.00 10,640.460 LINK | 0.0516% |
72 | ![]() | LINK-USD | $18.79 0.0070190 Eth | $194,005.00 10,322.491 LINK | 0.0501% |
73 | ![]() | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $18.85 0.0070457 Eth | $184,418.00 179,328.320 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.8699% |
74 | ![]() | LINK-USDC | $18.75 0.0070201 Eth | $180,230.00 9,611.640 LINK | 0.0466% |
75 | ![]() | LINK-JPY | $18.85 0.0070487 Eth | $171,249.00 9,083.000 LINK | 0.0441% |
76 | ![]() | LINK-BTC | $18.85 0.0070476 Eth | $159,250.00 8,450.300 LINK | 0.0410% |
77 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $18.85 0.0070471 Eth | $158,684.00 8,591.331 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0417% |
78 | ![]() | LINK-USDC | $18.90 0.0070648 Eth | $157,591.00 8,338.971 LINK | 0.0405% |
79 | ![]() | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $18.81 0.0070307 Eth | $156,706.00 8,424.763 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0409% |
80 | ![]() | LINK-TRY | $18.90 0.0070683 Eth | $139,783.00 7,517.930 LINK | 0.0365% |
81 | ![]() | LINK-GBP | $18.80 0.0070284 Eth | $131,903.00 7,015.780 LINK | 0.0340% |
82 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $18.89 0.0070649 Eth | $129,709.00 7,073.291 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0343% |
83 | ![]() | LINK-EUR | $18.81 0.0070320 Eth | $128,283.00 6,884.890 LINK | 0.0334% |
84 | ![]() | LINK-THB | $18.78 0.0070294 Eth | $115,786.00 6,165.981 LINK | 0.0299% |
85 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.77 0.0070181 Eth | $109,258.00 107,044.345 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5192% |
86 | ![]() | LINK-ETH | $18.88 0.0070589 Eth | $83,254.00 4,409.040 LINK | 0.0214% |
87 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.87 0.0070543 Eth | $69,391.00 3,707.184 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0180% |
88 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $18.88 0.0070590 Eth | $66,972.00 3,632.368 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0176% |
89 | ![]() | LINK-USDT | $18.85 0.0070475 Eth | $56,932.00 3,019.956 LINK | 0.0146% |
90 | ![]() | LINK-ETH | $18.86 0.0070522 Eth | $55,145.00 2,924.420 LINK | 0.0142% |
91 | ![]() | LINK-TRY | $18.72 0.0070101 Eth | $33,476.00 1,787.841 LINK | 0.0087% |
92 | ![]() | LINK-ETH | $18.89 0.0070606 Eth | $30,112.00 1,594.250 LINK | 0.0077% |
93 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $18.84 0.0070438 Eth | $29,654.00 1,567.485 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0076% |
94 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $18.82 0.0070388 Eth | $27,995.00 1,467.898 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0071% |
95 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $18.73 0.0070024 Eth | $24,996.00 1,362.083 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0066% |
96 | ![]() | LINK-BRL | $18.95 0.0070850 Eth | $23,680.00 1,249.540 LINK | 0.0061% |
97 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.88 0.0070605 Eth | $22,697.00 22,067.295 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1070% |
98 | ![]() | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $18.84 0.0070432 Eth | $21,465.00 31.704 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
99 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $18.87 0.0070577 Eth | $21,435.00 1,167.096 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0057% |
100 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $18.84 0.0070412 Eth | $17,206.90 940.745 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0046% |
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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