[GorsyGentle]

Not gonna lie, UUIDs are awful and I agree with that being a requirement. My personal favorite is actually Amazon's ID system. The fact that at a glance I know what type/class of resource something is phenomenal.

Looking at you Azure. You GUID dumpster-fire of an API.

[atonse]

I also like Stripe's prefixes. like sk_ or card_ etc.

Removes any ambiguity.