Specifications about #nostr

The nostr: URI scheme, which turns a NIP-19 entity into a link any client can open.

Kind 30818, wiki articles addressed by a normalised subject, where several people are expected to write about the same one.

The bech32 forms of keys, ids and pointers: npub, nsec, note, nprofile, nevent and naddr.

Calendar events, date-based and time-based, and the RSVPs that answer them.

The COUNT verb, which asks a relay how many events match a filter instead of asking for the events themselves.

Kind 1337, a code snippet carrying its language, its filename, its extension and its runtime.

Kind 1068, a poll with its options, its type and its deadline, answered on the relays it names.

The expiration tag, a timestamp after which relays and clients should treat an event as gone.

Proof of work over an event id, mined with a nonce tag and measured in leading zero bits.

Kind 4, encrypted direct messages built on a shared secret and aes-256-cbc, superseded by NIP-17.

End-to-end encrypted group messaging built on the MLS protocol, superseded by Marmot.

Kind 6, the repost, which carries the reposted note in its content and points at it with an e tag.

Kind 38383, peer-to-peer trade orders shared across platforms so that their separate liquidity pools into one.

A Cashu wallet whose proofs and spending history live encrypted on relays, so it follows its owner between clients.

Kind 30315, a short-lived status: what someone is doing, or what they are listening to.

The fields and tags that became conventions without a NIP of their own, from display_name to the alt tag.

Kinds 1222 and 1244, short voice messages whose content is the URL of an audio file.

How a Nostr client uses Blossom for media: reading a user's server list, and uploading to the servers it names.

The window.nostr object a browser extension exposes, letting a web page read a public key and have events signed without ever seeing the private key.

How kind 1 notes thread: the markers on e tags that name the root and the parent, and the q tags that cite another event.