Time-based UUID (version 1)
ID uuid_v1
DatatypeNot PIIidentifierDraft
This record is a draft: it has not been reviewed yet and may be incomplete or wrong. Do not rely on it for compliance decisions. Help improve it (see CONTRIBUTING.md).
UUID of version 1 under RFC 9562. It holds a 60-bit count of 100-nanosecond intervals since 15 October 1582, a clock sequence and a 48-bit node ID. The node ID is usually the IEEE 802 MAC address of the generating host, so the value reveals when and on which machine it was made. The version digit, the first digit of the third group, is 1. RFC 9562 recommends version 7 instead of versions 1 and 6 where possible.
- Parent datatype
- Universally unique identifier (UUID)
uuid - Categories
- Universal unique identifiers
- Countries
- Global (not tied to a country)
- Languages
- Common to most languages
- Quality
- 80/100 · missing: mapping (Wikidata, Schema.org, ...), detector coverage
- Metacrafter rules
- no detection rule yet
- Supported by tools
- no tool record lists this type yet
Regular expression
^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-1[0-9A-Fa-f]{3}-[89ABab][0-9A-Fa-f]{3}-[0-9A-Fa-f]{12}$Python re syntax.
Examples
| Value | Description |
|---|---|
| C232AB00-9414-11EC-B3C8-9F6BDECED846 | UUIDv1 test vector of RFC 9562 (Appendix A.1) |
| a8098c1a-f86e-11da-bd1a-00112444be1e | uuid1() output in the Python uuid module documentation |
| 1EC9414C-232A-6B00-B3C8-9F6BDECED846 invalid | The same time and node as UUIDv6 (RFC 9562, Appendix A.5) |
| 919108f7-52d1-4320-9bac-f847db4148a8 invalid | UUIDv4 |
Translations
| Language | Name | Description |
|---|---|---|
| Russian | UUID версии 1 (на основе времени) |
Sources
Use this record
- Page URL:
http://registry.apicrafter.io/datatype/uuid_v1 - JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
- Improve it: edit
data/datatypes/any/identifiers/uuid_v1.yamlon GitHub