> in the Linked Data context, what is the difference between > "identifier" and "hyperlink"? Last time I checked, URIs were opaque > and there was no such distinction.
A link has at least two parts: a source and a destination (and probably others, such as a type or direction). An identifier can be part of a hyperlink, as source or destination (or even as type). So hyperlinks are closer to triples than to identifiers. Ruben