All specifications

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

Paying one Lightning invoice from several mints at once, all of them or none.

How a server returns NIP-94 file metadata alongside a blob descriptor, so a client can publish the file without recomputing it.

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.

Response caching on the critical endpoints, so a wallet can safely replay a request that a network error interrupted.

How a wallet asks the mint to reissue blind signatures it once received, so a lost wallet can be restored.

How a wallet asks the mint whether a proof is unspent, pending, or already spent.

Kind 2003, a torrent index carrying the info hash, the file list and the trackers needed to rebuild a magnet link.

How to show a token too large for a static QR code as an animated one, using the UR protocol.

The swap operation, where a wallet hands proofs to the mint and receives new blind signatures in return.

Kind 27235, an ephemeral event signed to authorise a single HTTP request.

The content-warning tag, which asks a client to hide an event until the reader chooses to see it.

The subject tag, which gives a note a heading the way an email has one.

The old #[index] notation for mentioning events and pubkeys inside a note, replaced by NIP-27.