Interpret a UUID

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UUID: 
Your input:                      645e37e3-4a7d-4022-b0d0-2e5c55ea4990

Various notations:

URN:                             urn:uuid:645e37e3-4a7d-4022-b0d0-2e5c55ea4990
URI:                             uuid:645e37e3-4a7d-4022-b0d0-2e5c55ea4990
Microsoft GUID syntax:           {645E37E3-4A7D-4022-B0D0-2E5C55EA4990}
C++ struct syntax:               { 0x645e37e3, 0x4a7d, 0x4022, { 0xb0, 0xd0, 0x2e, 0x5c, 0x55, 0xea, 0x49, 0x90 } }

As OID (ISO/ITU-T 128 bits):     2.25.133412009023568261992956823732113525136
As OID (Microsoft):              1.2.840.113556.1.8000.2554.25694.14307.19069.16418.45264.3038293.15354256
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.7232279500950421538.12740734319944419728
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.1683896291.1249722402.2966433372.1441417616
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.25694.14307.19069.16418.45264.11868.21994.18832

Interpretation of the UUID:

Variant:                         [0b10_] RFC 4122 (Leach-Mealling-Salz)
Version:                         [0x4] Random
Random bits:                     01100100 01011110 00110111 11100011 01001010 01111101 ????0000 00100010
                                 ??110000 11010000 00101110 01011100 01010101 11101010 01001001 10010000
Random bytes:                    [0x645e37e34a7d?022?0d02e5c55ea4990]