Interpret a UUID

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UUID: 
Your input:                      66f5667f-8f9c-4852-8ef3-5c99447199b1

Various notations:

URN:                             urn:uuid:66f5667f-8f9c-4852-8ef3-5c99447199b1
URI:                             uuid:66f5667f-8f9c-4852-8ef3-5c99447199b1
Microsoft GUID syntax:           {66F5667F-8F9C-4852-8EF3-5C99447199B1}
C++ struct syntax:               { 0x66f5667f, 0x8f9c, 0x4852, { 0x8e, 0xf3, 0x5c, 0x99, 0x44, 0x71, 0x99, 0xb1 } }

As OID (ISO/ITU-T 128 bits):     2.25.136855447212603953952765094972577913265
As OID (Microsoft):              1.2.840.113556.1.8000.2554.26357.26239.36764.18514.36595.6068548.7444913
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.7418948659219023954.10300678586074503601
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.1727358591.2409384018.2398313625.1148295601
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.26357.26239.36764.18514.36595.23705.17521.39345

Interpretation of the UUID:

Variant:                         [0b10_] RFC 4122 (Leach-Mealling-Salz)
Version:                         [0x4] Random
Random bits:                     01100110 11110101 01100110 01111111 10001111 10011100 ????1000 01010010
                                 ??001110 11110011 01011100 10011001 01000100 01110001 10011001 10110001
Random bytes:                    [0x66f5667f8f9c?852?ef35c99447199b1]