https://en.wikipedia.org/wiki/Universally_unique_identifier
Universally unique identifier - Wikipedia
universally unique identifierwikipedia
https://datatracker.ietf.org/doc/html/rfc4122?ref=volkandogan.net
RFC 4122 - A Universally Unique IDentifier (UUID) URN Namespace
A Universally Unique IDentifier (UUID) URN Namespace (RFC 4122, ; obsoleted by RFC 9562)
universally unique identifierrfcuuidurnnamespace
https://manpages.ubuntu.com/manpages/resolute/man3/Catmandu%3A%3AFix%3A%3Auuid.3pm.html
Ubuntu Manpage: Catmandu::Fix::uuid - create a Globally/Universally Unique Identifier
create a Globally/Universally Unique Identifier
ubuntumanpagecatmandufixuuid