Sorry about this. That was my screwup.

There were (at least) two posts from arxiv.org on the front page at the time, and when I was updating the title on the other one I must have applied it to this one instead. I've fixed it now and re-upped it onto the front page so I can have its full exposure on the front page with its correct title.

I see the same, and there is a posting of that title (and linking to the correct paper) also on HN frontpage. wondering what's going on.

You're not alone. I saw that FHE paper earlier, so... what's going on?

Sorry for not responding earlier. This is probably a bug but it's super weird... I just emailed the mods about this.