I'm suggesting blockchains for the data dictionaries and ontologies, catalogs, schemas, service billing codes, etc. because they need to be looked up and verified often, but written much less often. Clinical PHI doesn't need blockchains (other than for say, identity potentially), but I think the actual standards, APIs, and practices may benefit from it.
I still don't see the point. There is generally a single trusted source for code systems, ontologies, data standarda, etc. You can download local copies of anything that you need to frequently access.
