Not quite the same thing but Rbutr (http://www.rbutr.com/) was features on HN a ...

		spobin on Nov 17, 2016 \| parent \| context \| favorite \| on: Ask HN: Anyone interested in building tools for sh... Not quite the same thing but Rbutr (http://www.rbutr.com/) was features on HN a while back. In their own words: "rbutr tells you when the webpage you are viewing has been disputed, rebutted or contradicted elsewhere on the internet."