This all makes sense to me, and it seems like we have some consensus in related discussions. The open question about how to implement variant identifiers in various vendors that don't explicitly carry such a concept seems like an implementation concern that can be relatively easily dealt with by vendors in their providers and associated doc (hashing or mapping of some other attribute associated with a flag value).
This all makes sense to me, and it seems like we have some consensus in related discussions. The open question about how to implement variant identifiers in various vendors that don't explicitly carry such a concept seems like an implementation concern that can be relatively easily dealt with by vendors in their providers and associated doc (hashing or mapping of some other attribute associated with a flag value).