Paperscape has been getting quite a bit of traffic in the past 12 hours. Thanks for your interest!
With all the traffic, we have encountered one mild bug. When you click on a paper your browser sends the location of the click to our servers, which then return the associated paper id, if one exists at that location. On rare occasions it is possible to request a paper at a
(NaN,NaN) location (yes, I know, that’s strange!), and this was causing issues with our server looking for that location. Consequently, search and clicking on papers was down for a few hours.
It should be fixed now. Please, let us know if you run into any problems.