Interpret a UUID

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UUID: 
Your input:                      ef273fb6-956f-4f43-8ffe-658aca8f9ccd

Various notations:

URN:                             urn:uuid:ef273fb6-956f-4f43-8ffe-658aca8f9ccd
URI:                             uuid:ef273fb6-956f-4f43-8ffe-658aca8f9ccd
Microsoft GUID syntax:           {EF273FB6-956F-4F43-8FFE-658ACA8F9CCD}
C++ struct syntax:               { 0xef273fb6, 0x956f, 0x4f43, { 0x8f, 0xfe, 0x65, 0x8a, 0xca, 0x8f, 0x9c, 0xcd } }

As OID (ISO/ITU-T 128 bits):     2.25.317889282827656191095486208422855023821
As OID (Microsoft):              1.2.840.113556.1.8000.2554.61223.16310.38255.20291.36862.6654666.9411789
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.17232812552580190019.10375842238286503117
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.4012326838.2507099971.2415814026.3398409421
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.61223.16310.38255.20291.36862.25994.51855.40141

Interpretation of the UUID:

Variant:                         [0b10_] RFC 4122 (Leach-Mealling-Salz)
Version:                         [0x4] Random
Random bits:                     11101111 00100111 00111111 10110110 10010101 01101111 ????1111 01000011
                                 ??001111 11111110 01100101 10001010 11001010 10001111 10011100 11001101
Random bytes:                    [0xef273fb6956f?f43?ffe658aca8f9ccd]