[meehow]

Right, it's a local, sharable copy. Actually Readability cuts off so much HTML, that it's quite possible that 2 users will generate the same hash even from very dynamic website.

[benj111]

Really?

What kind of hash are we talking about here? And generated from what?

I could imagine the opposite, generating 2 hashes from the 'same' article, due to different markup being stripped. Not what you suggest though.