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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,586 ( -0.003%)
Market
Price
$19.42 @ 0.006903 ETH (-2.65%)
Onchain Market Cap
$19,420,000,000.00
Circulating Supply Market Cap
$12,392,378,570.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | ![]() | LINK-USDT | $19.39 0.0069061 Eth | $111,772,909.00 5,695,750.270 LINK | 24.6909% |
2 | ![]() | LINK-USD | $19.37 0.0069008 Eth | $53,608,255.00 2,767,020.480 LINK | 11.9949% |
3 | ![]() | LINK-USDT | $19.39 0.0068975 Eth | $39,927,586.00 2,038,767.454 LINK | 8.8380% |
4 | ![]() | LINK-USDT | $19.43 0.0069226 Eth | $18,738,189.00 957,384.360 LINK | 4.1502% |
5 | ![]() | LINK-USDT | $19.36 0.0068870 Eth | $17,226,593.00 879,213.333 LINK | 3.8114% |
6 | ![]() | LINK-USDT | $19.43 0.0069053 Eth | $13,426,747.00 691,190.790 LINK | 2.9963% |
7 | ![]() | LINK-USDT | $19.42 0.0069090 Eth | $12,344,653.00 631,154.540 LINK | 2.7360% |
8 | ![]() | LINK-USDT | $19.40 0.0068967 Eth | $12,272,777.00 625,159.492 LINK | 2.7100% |
9 | ![]() | LINK-USDT | $19.37 0.0068869 Eth | $11,189,451.00 569,509.130 LINK | 2.4688% |
10 | ![]() | LINK-USDT | $19.41 0.0069090 Eth | $9,723,219.00 494,256.323 LINK | 2.1426% |
11 | ![]() | LINK-USDT | $19.41 0.0069205 Eth | $9,354,184.00 476,984.900 LINK | 2.0677% |
12 | ![]() | LINK-USDT | $19.38 0.0068981 Eth | $9,071,490.00 468,101.940 LINK | 2.0292% |
13 | ![]() | LINK-USDC | $19.40 0.0068973 Eth | $8,523,337.00 436,134.200 LINK | 1.8906% |
14 | ![]() | LINK-USDT | $19.38 0.0068898 Eth | $8,368,316.00 431,759.831 LINK | 1.8717% |
15 | ![]() | LINK-USDT | $19.38 0.0069008 Eth | $8,130,422.00 419,450.900 LINK | 1.8183% |
16 | ![]() | LINK-USDT | $19.37 0.0068982 Eth | $7,441,978.00 384,262.370 LINK | 1.6658% |
17 | ![]() | LINK-USDT | $19.39 0.0069047 Eth | $6,984,572.00 360,225.442 LINK | 1.5616% |
18 | ![]() | LINK-FDUSD | $19.46 0.0069290 Eth | $6,922,182.00 352,640.240 LINK | 1.5287% |
19 | ![]() | LINK-USDT | $19.42 0.0069124 Eth | $6,242,613.00 321,465.130 LINK | 1.3935% |
20 | ![]() | LINK-USDT | $19.43 0.0069167 Eth | $5,866,462.00 301,998.180 LINK | 1.3092% |
21 | ![]() | LINK-USDT | $19.38 0.0068903 Eth | $5,536,503.00 285,716.357 LINK | 1.2386% |
22 | ![]() | LINK-USD | $19.40 0.0068970 Eth | $5,341,146.00 275,365.650 LINK | 1.1937% |
23 | ![]() | LINK-USDT | $19.38 0.0068981 Eth | $4,591,523.00 234,053.447 LINK | 1.0146% |
24 | ![]() | LINK-EUR | $19.41 0.0069058 Eth | $4,039,859.00 208,080.650 LINK | 0.9020% |
25 | ![]() | LINK-USDT | $19.40 0.0068974 Eth | $3,617,912.00 186,512.990 LINK | 0.8085% |
26 | ![]() | LINK-EUR | $19.42 0.0069142 Eth | $2,498,213.00 128,632.252 LINK | 0.5576% |
27 | ![]() | LINK-USDT | $19.41 0.0069047 Eth | $2,222,228.00 113,777.576 LINK | 0.4932% |
28 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.44 0.0069136 Eth | $1,867,926.00 93,898.564 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4070% |
29 | ![]() | LINK-USDT | $19.38 0.0069025 Eth | $1,778,734.00 90,695.464 LINK | 0.3932% |
30 | ![]() | LINK-GBP | $19.39 0.0069040 Eth | $1,766,680.00 91,124.050 LINK | 0.3950% |
31 | ![]() | LINK-USDT | $19.39 0.0069040 Eth | $1,758,965.00 89,737.910 LINK | 0.3890% |
32 | ![]() | LINK-USDT | $19.40 0.0068996 Eth | $1,433,093.00 73,388.278 LINK | 0.3181% |
33 | ![]() | LINK-ETH | $19.41 0.0069087 Eth | $1,371,174.00 68,983.120 LINK | 0.2990% |
34 | ![]() | LINK-USDT | $19.37 0.0068966 Eth | $1,223,969.00 63,182.960 LINK | 0.2739% |
35 | ![]() | LINK-USDT | $19.43 0.0069100 Eth | $1,186,059.00 61,052.793 LINK | 0.2647% |
36 | ![]() | LINK-BTC | $19.44 0.0069289 Eth | $1,154,925.00 59,324.700 LINK | 0.2572% |
37 | ![]() | LINK-ETH | $19.45 0.0069226 Eth | $1,000,877.00 49,962.710 LINK | 0.2166% |
38 | ![]() | LINK-USDT | $19.37 0.0068990 Eth | $961,040.00 49,617.138 LINK | 0.2151% |
39 | ![]() | LINK-USDT | $19.37 0.0068989 Eth | $895,313.00 46,224.590 LINK | 0.2004% |
40 | ![]() | LINK-TRY | $19.47 0.0069355 Eth | $887,935.00 45,601.710 LINK | 0.1977% |
41 | ![]() | LINK-USDC | $19.39 0.0069008 Eth | $868,949.00 44,331.760 LINK | 0.1922% |
42 | ![]() | LINK-USD | $19.39 0.0068994 Eth | $836,465.00 43,138.091 LINK | 0.1870% |
43 | ![]() | LINK-USDT | $19.37 0.0069008 Eth | $820,335.00 41,994.290 LINK | 0.1820% |
44 | ![]() | LINK-ETH | $19.47 0.0069233 Eth | $810,492.00 41,626.570 LINK | 0.1804% |
45 | ![]() | LINK-JPY | $19.48 0.0069374 Eth | $765,453.00 39,286.865 LINK | 0.1703% |
46 | ![]() | LINK-USDT | $19.38 0.0068977 Eth | $724,705.00 37,396.150 LINK | 0.1621% |
47 | ![]() | LINK-TRY | $19.40 0.0068958 Eth | $708,404.00 36,078.840 LINK | 0.1564% |
48 | ![]() | LINK-USDC | $19.40 0.0069062 Eth | $690,635.00 35,332.588 LINK | 0.1532% |
49 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.38 0.0069027 Eth | $639,402.00 32,157.599 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1394% |
50 | ![]() | LINK-USDT | $19.41 0.0069083 Eth | $580,219.00 29,594.840 LINK | 0.1283% |
51 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.38 0.0069004 Eth | $539,942.00 27,793.898 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1205% |
52 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.41 0.0069125 Eth | $536,176.00 27,095.719 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1175% |
53 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.35 0.0068921 Eth | $496,131.00 501,924.644 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.1758% |
54 | ![]() | LINK-EUR | $19.44 0.0069219 Eth | $477,894.00 24,401.550 LINK | 0.1058% |
55 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.44 0.0069136 Eth | $475,138.00 24,385.017 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1057% |
56 | ![]() | LINK-USDC | $19.38 0.0068906 Eth | $439,039.00 22,284.381 LINK | 0.0966% |
57 | ![]() | LINK-BTC | $19.36 0.0068854 Eth | $377,327.00 19,486.130 LINK | 0.0845% |
58 | ![]() | LINK-USD | $19.41 0.0069106 Eth | $377,222.00 19,434.415 LINK | 0.0842% |
59 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.57 0.0069580 Eth | $351,001.00 17,630.998 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0764% |
60 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.40 0.0069077 Eth | $340,918.00 17,222.154 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0747% |
61 | ![]() | LINK-ETH | $19.39 0.0069043 Eth | $326,195.00 16,427.970 LINK | 0.0712% |
62 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.38 0.0068999 Eth | $324,057.00 16,311.500 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0707% |
63 | ![]() | LINK-BNB | $19.40 0.0068980 Eth | $260,831.00 13,320.626 LINK | 0.0577% |
64 | ![]() | LINK-BTC | $19.39 0.0069042 Eth | $243,862.00 12,576.500 LINK | 0.0545% |
65 | ![]() | LINK-THB | $19.49 0.0069391 Eth | $235,641.00 12,091.357 LINK | 0.0524% |
66 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.35 0.0068937 Eth | $232,143.00 11,886.657 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0515% |
67 | ![]() | LINK-USDC | $19.39 0.0068938 Eth | $231,583.00 11,941.457 LINK | 0.0518% |
68 | ![]() | LINK-ETH | $19.38 0.0069029 Eth | $220,454.00 11,375.310 LINK | 0.0493% |
69 | ![]() | LINK-BTC | $19.38 0.0069037 Eth | $217,723.00 11,233.110 LINK | 0.0487% |
70 | ![]() | LINK-JPY | $19.43 0.0069203 Eth | $204,985.00 10,548.100 LINK | 0.0457% |
71 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $19.35 0.0068916 Eth | $191,470.00 9,789.722 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0424% |
72 | ![]() | LINK-USDC | $19.43 0.0069208 Eth | $186,431.00 9,597.420 LINK | 0.0416% |
73 | ![]() | LINK-BTC | $19.36 0.0068960 Eth | $184,524.00 9,530.960 LINK | 0.0413% |
74 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.42 0.0069023 Eth | $176,511.00 8,985.714 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0390% |
75 | ![]() | LINK-EUR | $19.53 0.0069576 Eth | $173,632.00 8,888.870 LINK | 0.0385% |
76 | ![]() | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.35 0.0068790 Eth | $154,373.00 16,613.386 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.0720% |
77 | ![]() | LINK-BTC | $19.39 0.0069060 Eth | $137,922.00 7,086.502 LINK | 0.0307% |
78 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $19.44 0.0069116 Eth | $137,355.00 7,056.683 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0306% |
79 | ![]() | LINK-USD | $19.44 0.0069209 Eth | $117,136.00 6,024.422 LINK | 0.0261% |
80 | ![]() | LINK-ETH | $19.39 0.0069024 Eth | $77,072.00 3,975.780 LINK | 0.0172% |
81 | ![]() | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $19.44 0.0069136 Eth | $76,027.00 76,662.908 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3323% |
82 | ![]() | LINK-BTC | $19.40 0.0068980 Eth | $75,167.00 3,873.606 LINK | 0.0168% |
83 | ![]() | LINK-ETH | $19.38 0.0069040 Eth | $60,845.00 3,139.030 LINK | 0.0136% |
84 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.49 0.0069411 Eth | $56,455.00 2,852.273 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0124% |
85 | ![]() | LINK-USDC | $19.35 0.0068816 Eth | $48,430.00 2,480.702 LINK | 0.0108% |
86 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $19.42 0.0069023 Eth | $48,231.00 2,467.268 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0107% |
87 | ![]() | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.40 0.0069043 Eth | $43,711.00 44,472.888 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1928% |
88 | ![]() | LINK-USDT | $19.43 0.0069081 Eth | $39,329.00 2,024.375 LINK | 0.0088% |
89 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.38 0.0069025 Eth | $37,040.00 1,904.854 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0083% |
90 | ![]() | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.42 0.0069159 Eth | $36,241.00 1,814.236 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0079% |
91 | ![]() | LINK-ETH | $19.38 0.0068926 Eth | $29,039.00 1,498.080 LINK | 0.0065% |
92 | ![]() | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $19.58 0.0069711 Eth | $28,136.00 1,449.557 0X5947BB275C521040051D82396192181B413227A3 | 0.0063% |
93 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $19.46 0.0069311 Eth | $26,206.00 2,104.504 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0091% |
94 | ![]() | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $19.43 0.0069202 Eth | $23,744.00 38.458 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
95 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $19.48 0.0069345 Eth | $22,594.00 1,152.957 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0050% |
96 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $19.48 0.0069329 Eth | $21,889.00 1,097.930 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0048% |
97 | ![]() | LINK-TRY | $19.24 0.0068511 Eth | $21,090.00 1,095.988 LINK | 0.0048% |
98 | ![]() | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.43 0.0069148 Eth | $19,659.02 991.606 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0043% |
99 | ![]() | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $19.41 0.0069032 Eth | $19,033.63 973.774 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0042% |
100 | ![]() | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $19.49 0.0069415 Eth | $18,018.86 924.080 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0040% |
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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