Interprete a UUID

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UUID: 
Your input:                      817e5831-b202-8d14-87e9-5ce32bd83b97

Various notations:

URN:                             urn:uuid:817e5831-b202-8d14-87e9-5ce32bd83b97
URI:                             uuid:817e5831-b202-8d14-87e9-5ce32bd83b97
Microsoft GUID syntax:           {817E5831-B202-8D14-87E9-5CE32BD83B97}
C++ struct syntax:               { 0x817e5831, 0xb202, 0x8d14, { 0x87, 0xe9, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.172126429649746036263976881336396299159
As OID (Microsoft):              1.2.840.113556.1.8000.2554.33150.22577.45570.36116.34793.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.9330992448421399828.9793460995456777111
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.2172540977.2986511636.2280217827.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.33150.22577.45570.36116.34793.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0x817e5831b202d1407e95ce32bd83b97]
Custom data block1 (32 bit):     [0x817e5831]
Custom data block2 (16 bit):     [0xb202]
Custom data block3 (12 bit):     [0xd14]
Custom data block4 (14 bit):     [0x07e9]
Custom data block5 (48 bit):     [0x5ce32bd83b97]

Interpretation of HickelSOFT "SQL Server Sortable Custom UUID", Version 3

Random 16 bits:                  [0x817e] 0b1000000101111110
Milliseconds:                    [0x58] 345 (deviation -2ms..2ms)
Seconds:                         [0x31] 49
Minute of day:                   [0x02b2] 690 (11:29)
Day of year:                     [0x14d] 333 (Day=29, Month=11)
Unused 2 bits:                   [0] 0b00
Year:                            [0x7e9] 2025
Signature:                       [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time:                   2025-11-29 11:29:49'345 (deviation -2ms..2ms)