The link was to www.churp.io which looks to me much more like a product than a research paper. One of the authors helpfully clarified below, but at least to me

The link was to www.churp.io which looks to me much more like a product than a research paper. One of the authors helpfully clarified below, but at least to me it was extremely unclear that this was the case - had it been more obvious I'd have phrased my original comment very differently. On second inspection one of the blue links does point to "full paper" but there's still lots of words that imply that it's a viable working product, which it really isn't.