Interpret a UUID

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UUID:
Your input:                      54efd535-2d00-880b-87ea-5ce32bd83b97

Various notations:

URN:                             urn:uuid:54efd535-2d00-880b-87ea-5ce32bd83b97
URI:                             uuid:54efd535-2d00-880b-87ea-5ce32bd83b97
Microsoft GUID syntax:           {54EFD535-2D00-880B-87EA-5CE32BD83B97}
C++ struct syntax:               { 0x54efd535, 0x2d00, 0x880b, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.112900434961388416085458900554188602263
As OID (Microsoft):              1.2.840.113556.1.8000.2554.21743.54581.11520.34827.34794.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.6120344842984785931.9793742470433487767
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.1425003829.755009547.2280283363.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.21743.54581.11520.34827.34794.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0x54efd5352d0080b07ea5ce32bd83b97]
Custom data block1 (32 bit):     [0x54efd535]
Custom data block2 (16 bit):     [0x2d00]
Custom data block3 (12 bit):     [0x80b]
Custom data block4 (14 bit):     [0x07ea]
Custom data block5 (48 bit):     [0x5ce32bd83b97]

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

Random 16 bits:                  [0x54ef] 0b0101010011101111
Milliseconds:                    [0xd5] 834 (deviation -2ms..2ms)
Seconds:                         [0x35] 53
Minute of day:                   [0x002d] 45 (00:44)
Day of year:                     [0x0b8] 184 (Day=3, Month=7)
Unused 2 bits:                   [0] 0b00
Year:                            [0x7ea] 2026
Signature:                       [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time:                   2026-07-03 00:44:53'834 (deviation -2ms..2ms)

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