https://hackerpaper.kaipfister.de/p/1606.03588/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=24923888urn:hackerpapers:mention:1606.03588:24923888Wed, 28 Oct 2020 20:41:37 GMT<p>The time being spent on Friendly Captcha is passive and can overlap with time being spent filling out a form. Great point! I wonder if an Argon variant would be more appropriate The creators of Argon2 actually also created a memory-hard proof-of-work function they call MTP (for &quot;Merkle Tree Proof&quot;, which is a terrible name, totally un-Googleable; I always have to search for the title of their paper, &quot;Egalitarian Computing&quot;): https://arxiv.org/pdf/1606.03588.pdf A bug bounty for it was sponsored by Zcoin, which is nice. Zcoin is actually considering moving away from it, but mainly because the…</p><p><a href="https://hackerpaper.kaipfister.de/p/1606.03588/">Paper and discussion history</a>. A mention is not an endorsement.</p>cs.CR