"Compile millions of links to old (but still copyrighted) works, with a countdown
field (in days) until they enter in the public domain..."
Sounds a bit like:
"ARROW infrastructure allows streamlining the process of identification of authors,
publishers and other rightholders of a work, including whether it is orphan, in or out of
copyright or if it is still commercially available..."
http://www.arrow-net.eu/presenting-arrow-system
Michael