Interpret a UUID

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UUID: 
Your input:                      21afc9aa-5f34-4dd1-a812-130bb54ac346

Various notations:

URN:                             urn:uuid:21afc9aa-5f34-4dd1-a812-130bb54ac346
URI:                             uuid:21afc9aa-5f34-4dd1-a812-130bb54ac346
Microsoft GUID syntax:           {21AFC9AA-5F34-4DD1-A812-130BB54AC346}
C++ struct syntax:               { 0x21afc9aa, 0x5f34, 0x4dd1, { 0xa8, 0x12, 0x13, 0x0b, 0xb5, 0x4a, 0xc3, 0x46 } }

As OID (ISO/ITU-T 128 bits):     2.25.44777266073728087616858272049721426758
As OID (Microsoft):              1.2.840.113556.1.8000.2554.8623.51626.24372.19921.43026.1248181.4899654
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.2427380457754873297.12110763288959828806
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.565168554.1597263313.2819756811.3041575750
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.8623.51626.24372.19921.43026.4875.46410.49990

Interpretation of the UUID:

Variant:                         [0b10_] RFC 4122 (Leach-Mealling-Salz)
Version:                         [0x4] Random
Random bits:                     00100001 10101111 11001001 10101010 01011111 00110100 ????1101 11010001
                                 ??101000 00010010 00010011 00001011 10110101 01001010 11000011 01000110
Random bytes:                    [0x21afc9aa5f34?dd1?812130bb54ac346]