> "For instance: in the following contexts expand the CURIE to the chembl webpage, in these other contexts, expand to the (sometimes unresolvable) HTTP URI, in these other contexts, expand to the wikidata page for the entity. "

This context-specific expansion is of course not to preclude the use of content negotiation, when that is actually provided. However, it is often useful to point, for instance, to HTML from provider A versus from provider B.

Was this helpful? We welcome any feedback or questions about the overall approach.

Also, we are collecting evidence of identifier pain; we welcome anyone to add their scenarios to it. 

Best wishes,