Interpret a UUID
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Your input: cdf0ed00-a103-8f00-87ea-5ce32bd83b97
Various notations:
URN: urn:uuid:cdf0ed00-a103-8f00-87ea-5ce32bd83b97
URI: uuid:cdf0ed00-a103-8f00-87ea-5ce32bd83b97
Microsoft GUID syntax: {CDF0ED00-A103-8F00-87EA-5CE32BD83B97}
C++ struct syntax: { 0xcdf0ed00, 0xa103, 0x8f00, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }
As OID (ISO/ITU-T 128 bits): 2.25.273742697362863566688914434756951161751
As OID (Microsoft): 1.2.840.113556.1.8000.2554.52720.60672.41219.36608.34794.6087467.14171031
As OID (Waterjuice 2x64 bits): 1.3.6.1.4.1.54392.1.14839621359142932224.9793742470433487767
As OID (Waterjuice 4x32 bits): 1.3.6.1.4.1.54392.2.3455118592.2701364992.2280283363.735591319
As OID (Waterjuice 8x16 bits): 1.3.6.1.4.1.54392.3.52720.60672.41219.36608.34794.23779.11224.15255
Interpretation of the UUID:
Variant: [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version: [0x8] Custom implementation
Custom data: [0xcdf0ed00a103f0007ea5ce32bd83b97]
Custom data block1 (32 bit): [0xcdf0ed00]
Custom data block2 (16 bit): [0xa103]
Custom data block3 (12 bit): [0xf00]
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: [0xcdf0] 0b1100110111110000
Milliseconds: [0xed] 928 (deviation -2ms..2ms)
Seconds: [0x00] 0
Minute of day: [0x03a1] 929 (15:28)
Day of year: [0x00f] 15 (Day=15, Month=1)
Unused 2 bits: [0] 0b00
Year: [0x7ea] 2026
Signature: [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time: 2026-01-15 15:28:00'928 (deviation -2ms..2ms)