Good luck! Let us know if you find out anything. 
I recall reading elsewhere that the first model, the “smart tag“ not the “smart tag plus,” did appear to be using the same UUID for all tags. But I don’t know if that’s true for the plus.
Information in this forum has been that the tags offer very little information in the smartthings API, so you wouldn’t expect to see anything in the IDE about them.
I think @orangebucket May have done some research into what’s available.