Interpret a UUID

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UUID: 
Your input:                      a581d1b8-89cb-4ffb-a3d0-f5f549ba0baa

Various notations:

URN:                             urn:uuid:a581d1b8-89cb-4ffb-a3d0-f5f549ba0baa
URI:                             uuid:a581d1b8-89cb-4ffb-a3d0-f5f549ba0baa
Microsoft GUID syntax:           {A581D1B8-89CB-4FFB-A3D0-F5F549BA0BAA}
C++ struct syntax:               { 0xa581d1b8, 0x89cb, 0x4ffb, { 0xa3, 0xd0, 0xf5, 0xf5, 0x49, 0xba, 0x0b, 0xaa } }

As OID (ISO/ITU-T 128 bits):     2.25.219996679243496413612760479558352374698
As OID (Microsoft):              1.2.840.113556.1.8000.2554.42369.53688.35275.20475.41936.16119113.12192682
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.11926043878769774587.11804205057190792106
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.2776748472.2311802875.2748380661.1236929450
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.42369.53688.35275.20475.41936.62965.18874.2986

Interpretation of the UUID:

Variant:                         [0b10_] RFC 4122 (Leach-Mealling-Salz)
Version:                         [0x4] Random
Random bits:                     10100101 10000001 11010001 10111000 10001001 11001011 ????1111 11111011
                                 ??100011 11010000 11110101 11110101 01001001 10111010 00001011 10101010
Random bytes:                    [0xa581d1b889cb?ffb?3d0f5f549ba0baa]