How about a(nother) community-built database of bibliographic data?
One that is not limited to books or scientific journal articles, but does aim to identify the related people, organisations, perhaps even rooms in which conferences were held. That aims to connect the dots rather than re-mint URIs for everything that already has a URI, but recognises the possibility that referenced items may change over time.
I’m sure I can’t pull this off overnight by myself, but let me try to at least see if there is interest. Comments and ideas are welcome.