> users with registered accounts
What is an account here? It's not an npub, right?
I heard you like ecash, so we used ecash to secure ecash mints.
Blind authentication will allow mint operators to restrict the use of their mint to only registered users, while still providing them great privacy.
This is one of the most-requested features for Cashu.

The spec is now open for discussion: https://github.com/cashubtc/nuts/pull/198
> users with registered accounts
What is an account here? It's not an npub, right?