Maybe I'm missing something, but does this require the user to check their email and click a link every time they look to log into a site? If so, I'm wondering how this has been received by typical consumer, or if any of the overhead in terms of support tickets dealing with traditional passwords have still exists for magic links.<p>Magic seems like an interesting use-case in decentralized authentication. I haven't had a chance to look through the whitepaper, but I'm wondering if this takes advantage of zero-knowledge proofs as other decentralized auth providers have?