2021-12-14T23:31:41Z
The UUID is a 128-(actually 122, after you remove the control bits)-bit identifier that is particularly useful for naming things when you don't want to spend time coming up with a name for them. By various mechanisms, not the least of which being their size, UUIDs are all but guaranteed to be unique. Hence the name.
universally unique identifier
Universally Unique Identifier
urn:uuid:32453ea5-50cb-4ee1-a1f9-c03c0693fdda
urn:uuid:797e83d7-a86f-4838-b5c5-0ec20855197d
UUID