Nostr: What are Nostr public and private keys?
Your public key identifies the signer of your events and is meant to be shared.
Decentralized Social
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Nostr: What are NIPs, and why do they matter?
NIPs are Nostr Improvement Proposals that document how clients and relays can implement shared features.
Nostr: Is Nostr an app or a protocol?
Nostr is a protocol, not one app.
Nostr: How portable is my Nostr content if a client or relay shuts down?
Your keypair is independent of one client, and signed events can be copied to other willing relays.
Nostr: How long do relays keep posts?
There is no universal retention period.
Nostr: How does moderation work without one central operator?
Different clients, relays, and groups can make their own choices.
Nostr: How do Nostr communities work?
There is more than one community model.
Nostr: How do Nostr clients and relays work together?
A client signs an event with your key and sends it to one or more relays.
Nostr: How do I set up my Nostr profile?
Use a client to publish profile metadata such as a display name, description, and picture under your key.
Nostr: How do I protect myself from spam on Nostr?
Use your client's mute controls, choose relays with policies you trust, and be cautious with unsolicited links and payment requests.
Nostr: How do I move from one Nostr client to another?
Open the new client using a trusted signing method for the same keypair, then check its relay settings and whether it can load your profile, follows, and posts.
Nostr: How do I keep my Nostr private key safe?
Keep the private key out of posts, screenshots, cloud notes, and unfamiliar websites.
Nostr: How do I find people on Nostr?
Ask for a person's `npub`, a profile link, or a NIP-05 identifier they publish through a trusted channel.
Nostr: How do I create a Nostr identity?
Choose a trustworthy Nostr client or signer and use its account-creation flow to generate a keypair.
Nostr: How do I control who can access files I share?
Treat a public media URL as public unless the host provides real access controls or you encrypt the file before upload.
Nostr: How do I choose relays?
Start with relays your client can reach reliably, then consider their rules, retention, cost, location, and support for the NIPs you use.
Nostr: How do I back up my follows and relay settings?
Keep a secure record of your private-key recovery material, plus your public key, chosen relays, and any client export of follows.
Nostr: How do follows work across clients?
A Nostr follow list is itself a signed event, defined by NIP-02.
Nostr: How can I tell whether an account is impersonating someone?
Compare the full public key with a key the person has shared through a trusted channel.
Nostr: Does NIP-05 prove someone’s real-world identity?
No.