Interpret a UUID

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UUID: 
Your input:                      81243210-5604-4031-80c3-ec2bd0801d55

Various notations:

URN:                             urn:uuid:81243210-5604-4031-80c3-ec2bd0801d55
URI:                             uuid:81243210-5604-4031-80c3-ec2bd0801d55
Microsoft GUID syntax:           {81243210-5604-4031-80C3-EC2BD0801D55}
C++ struct syntax:               { 0x81243210, 0x5604, 0x4031, { 0x80, 0xc3, 0xec, 0x2b, 0xd0, 0x80, 0x1d, 0x55 } }

As OID (ISO/ITU-T 128 bits):     2.25.171658349557913033903506824529614740821
As OID (Microsoft):              1.2.840.113556.1.8000.2554.33060.12816.22020.16433.32963.15477712.8396117
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.9305617775798272049.9278519330239159637
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.2166632976.1443119153.2160323627.3498057045
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.33060.12816.22020.16433.32963.60459.53376.7509

Interpretation of the UUID:

Variant:                         [0b10_] RFC 4122 (Leach-Mealling-Salz)
Version:                         [0x4] Random
Random bits:                     10000001 00100100 00110010 00010000 01010110 00000100 ????0000 00110001
                                 ??000000 11000011 11101100 00101011 11010000 10000000 00011101 01010101
Random bytes:                    [0x812432105604?031?0c3ec2bd0801d55]