[CogDisco]

What would be your plan for papers that cite another one because they are doing a literature review or something akin to "Paper X is wrong"?

There's also a trickier problem in your simple binary flag: papers can have incorrect proofs of correct statements.

I'd love to see a Semantic Web approach where you don't cite papers but results in papers. So while a result in a paper might be wrong, you don't have to throw out all the results in all the papers citing this paper.