50 Nostr Questions
Fifty Nostr questions linked to guides on identities, relays, security, and use.
Decentralized Social
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Nostr: Why do features work in one Nostr client but not another?
Clients choose which NIPs to implement and how to present them.
Nostr: Why are some of my posts missing?
Your client may be reading different relays from the ones that accepted your post, a relay may have rejected or deleted it, or the client may not display that event kind.
Nostr: Where are images and videos in Nostr posts stored?
Often the post contains a URL to media stored on a separate file host rather than embedding the file inside every relay event.
Nostr: What is the difference between read and write relays?
Write relays are where you generally publish your events.
Nostr: What is the difference between legacy DMs and NIP-17 messages?
Older Nostr direct messages commonly used the legacy NIP-04 approach.
Nostr: What is remote signing, and when is it useful?
NIP-46 lets a client communicate with a separate signer, sometimes called a bunker, to request signatures.
Nostr: What is Nostr?
Nostr is an open protocol for publishing signed messages through independently operated relays.
Nostr: What is NIP-07 browser signing?
NIP-07 describes a `window.nostr` interface that a browser extension or similar signer can expose to Nostr web apps.
Nostr: What is a Nostr zap?
A zap is a Lightning payment with Nostr events that let clients show the payment in context.
Nostr: What is a Nostr signer?
A signer is software or a device that approves and creates cryptographic signatures for your Nostr events.
Nostr: What is a Nostr relay?
A relay is a server that receives events from clients and answers event queries.
Nostr: What is a Nostr event?
An event is the basic Nostr data object.
Nostr: What is a NIP-05 identifier?
A NIP-05 identifier resembles an email address, such as `name@example.com`, but it is a web-domain lookup that maps a name to a Nostr public key.
Nostr: What happens when I mute or block someone?
Muting usually changes what your client shows you; it does not revoke another person's public key or prevent all relays from storing their events.
Nostr: What happens if I lose my private key?
If you lose the private key and every backup or signer that holds it, you cannot sign new events as that public key.
Nostr: What does it take to secure a relay?
Keep its server and relay software updated, restrict administration, monitor storage and abuse, and publish clear access rules.
Nostr: What do `npub` and `nsec` mean?
`npub` is a human-readable encoding of a Nostr public key, suitable for sharing.
Nostr: What can relays learn about encrypted messages?
A relay can see that a client connected, which events it submitted or requested, and some timing and routing information.
Nostr: What can a relay learn about my activity?
A relay receives the signed events you publish to it, the filters you request, and the connection that carries those requests.