Interpret a UUID
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Your input: 9d4bb40f-bc01-800c-87ea-5ce32bd83b97
Various notations:
URN: urn:uuid:9d4bb40f-bc01-800c-87ea-5ce32bd83b97
URI: uuid:9d4bb40f-bc01-800c-87ea-5ce32bd83b97
Microsoft GUID syntax: {9D4BB40F-BC01-800C-87EA-5CE32BD83B97}
C++ struct syntax: { 0x9d4bb40f, 0xbc01, 0x800c, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }
As OID (ISO/ITU-T 128 bits): 2.25.209081869682957994598975836316065348503
As OID (Microsoft): 1.2.840.113556.1.8000.2554.40267.46095.48129.32780.34794.6087467.14171031
As OID (Waterjuice 2x64 bits): 1.3.6.1.4.1.54392.1.11334350866879709196.9793742470433487767
As OID (Waterjuice 4x32 bits): 1.3.6.1.4.1.54392.2.2638984207.3154214924.2280283363.735591319
As OID (Waterjuice 8x16 bits): 1.3.6.1.4.1.54392.3.40267.46095.48129.32780.34794.23779.11224.15255
Interpretation of the UUID:
Variant: [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version: [0x8] Custom implementation
Custom data: [0x9d4bb40fbc0100c07ea5ce32bd83b97]
Custom data block1 (32 bit): [0x9d4bb40f]
Custom data block2 (16 bit): [0xbc01]
Custom data block3 (12 bit): [0x00c]
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: [0x9d4b] 0b1001110101001011
Milliseconds: [0xb4] 705 (deviation -2ms..2ms)
Seconds: [0x0f] 15
Minute of day: [0x01bc] 444 (07:23)
Day of year: [0x0c0] 192 (Day=11, 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: 2026-07-11 07:23:15'705 (deviation -2ms..2ms)
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