The use case I’m thinking of is creating these structures locally and then storing it (either in JSON or Core Data) so I can use the UUID to get an identifier and then store it so that it does persist with the data later but I understand the point you’re making @iressler. For Core Data you might be able to use the objectID, but I have a vague recollection that the objectID can change between initial creation and when it is stored to the persistent store (i.e., SQLite).

Thanks Rich. It sounds like my understanding is correct other than I need the step at the end when booted into Big Sur to remove the beta profile. I'll give it a try soon when I have time.