I'm working on a new version of my NIP (404), aiming to implement strong plausible deniability for features like Stories and other posts. These should be weakly tied, in a controlled way, to the user's real npub (even with OTP). This is a topic I really care about, so I’ve been wrestling with cryptography for the past two months to figure out a path. A more well-versed mind on this subject might have solved it in a few minutes, but I guess it is a good opportunity to learn new things.