Re:Ask HN: What is the HN of Cryptocurrency?
by k00b on Wednesday August 11, 2021 @07:18PM
(#28149358)
The site however does use the Lightning Network to provide Sybil resistance. Upvotes/posts/comments cost 1 sat, ~1/2000 of a dollar. This helps gate the site allowing mostly Bitcoiners in and imports an incentive structure - those more like in person social interactions.
Rather than staking your reputation, you're staking Bitcoin. Rather than earning just reputation, you're earning Bitcoin (your earned karma/upvotes is Bitcoin you can withdrawal from SN at anytime).
There actually isn't a cost to using Lightning Login (lnurl-auth). It operates without really touching the Lightning Network, i.e. a channel. It just uses your Lightning wallet's key pair to authenticate you.
More on login: through the QR code (or lnurl string), I effectively send your wallet a randomly generated string, a challenge, it signs it using a deterministically derived key pair using my domain and your wallet key pair, then hits an endpoint on my server with the signature which authenticates you.