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ivanpanch
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doc/uuid/introduction.adoc
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:idprefix: introduction_
A UUID, or Universally unique identifier, is intended to uniquely identify information in a distributed environment without significant central coordination.
A UUID, or universally unique identifier, is intended to uniquely identify information in a distributed environment without significant central coordination.
It can be used to tag objects with very short lifetimes, or to reliably identify very persistent objects across a network.
A formal definition for UUID can be found in https://datatracker.ietf.org/doc/rfc4122/[RFC 4122] and https://datatracker.ietf.org/doc/rfc9562/[RFC 9562].
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UUIDs identify audio or video streams in the Advanced Systems Format (ASF).
UUIDs are also a basis for OIDs (object identifiers), and URNs (uniform resource name).
An attractive feature of UUIDs when compared to alternatives is their relative small size, of 128-bits, or 16-bytes.
An attractive feature of UUIDs when compared to alternatives is their relative small size, of 128 bits, or 16 bytes.
Another is that the creation of UUIDs does not require a centralized authority.
When UUIDs are generated by one of the defined mechanisms, they are either guaranteed to be unique, different from all other generated UUIDs