Integrating, navigating, and analysing open Eprint archives through open citation linking (the OpCit project)

The Los Alamos Eprint Archive (LANL) is a public repository for a growing p roportion of the current research literature in physics. The Open Citation- linking Project (OpCit) is making this resource still more powerful and use ful for its current physicist users by connecting each paper to each paper it cites; this can be extended to all the rest of the disciplines in other open archives designed to be interoperable through compliance with the Sant a Fe Convention. A citation-linked online digital corpus also allows powerf ul new forms of online informetric analysis that go far beyond static citat ion analysis, measuring researchers' usage of all phases of the literature, from pre-refereeing preprint to post-refereeing postprint, from download t o citation, yielding an embryology of learned inquiry.