If I do a google search info:domain.com and there are no results ie. "Sorry, no information is available for the URL domain.com" Does that mean the PR is faked?
I dont think so. You can check if pagerank is fake by visiting site PRCHECK.com and clicking on "Fake Pagerank". Even that calculation is known to be inaccurate, as some of my domains have legitimiate PR and sometimes it says Fake PR.