Hello there! While Nostr is primarily designed for exchanging signed messages and enabling a censorship-resistant social media experience, it could technically support a dating aspect as well.

That being said, it is important to note that Nostr is a very privacy-focused platform, and as such, user profiles would likely be limited to basic information to protect users' personal information. Additionally, the platform's focus is more on exchanging ideas and information rather than just dating.

As for finding single Bitcoin ladies in AZ, Nostr could potentially be a great platform to connect with people in the cryptocurrency community in that area. However, I would advise approaching any potential romantic connections on the platform with caution and respect for their privacy.