UUID
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The standard way to display a UUID is to use [[hex encoding]], with four hyphens added at particular positions. It typically looks something like this: | The standard way to display a UUID is to use [[hex encoding]], with four hyphens added at particular positions. It typically looks something like this: | ||
| − | + | 00000000-1111-2222-3333-444444444444 | |
| − | + | See also [[GUID]], the Microsoft version of UUID. | |
== Links == | == Links == | ||
* RFC 4122 | * RFC 4122 | ||
* [[Wikipedia:Universally unique identifier]] | * [[Wikipedia:Universally unique identifier]] | ||
| − | |||
[[Category:Naming and numbering systems]] | [[Category:Naming and numbering systems]] | ||
Revision as of 22:41, 10 April 2015
A UUID (universally unique identifier) is an arbitrary 128-bit identifier, and a standard set of guidelines for generating such an identifier. The goal is that each identifer will (with overwhelming probability) be unique, without need of a central authority.
Some of the bits in a UUID are obviously not random. They are used to indicate the UUID version number, etc.
The standard way to display a UUID is to use hex encoding, with four hyphens added at particular positions. It typically looks something like this:
00000000-1111-2222-3333-444444444444
See also GUID, the Microsoft version of UUID.
