All specifications

The imeta tag, which describes a media URL found in the content: its dimensions, its mime type, its hash and its fallbacks.

How an ecash mint announces itself and its capabilities, and how users recommend the mints they trust.

Gift wraps: a rumor sealed to its recipient, then wrapped again under a throwaway key, so relays see only the wrapper.

ncryptsec, a private key encrypted under a password, with scrypt deciding how expensive guessing it is.

This NIP defines event kinds for geocaching on Nostr. These events allow users to create, share, and log geocaches in a decentralized manner.

This spec defines an addressable event kind for publishing music playlists on Nostr. Tracks can be referenced either by Nostr-native coordinates (a tags) or by...

How two devices speak Nostr over Bluetooth Low Energy, emulating the websocket protocol within its limits.

The alt tag, a plain text summary so a client that does not know a kind can still show something for it.

The delegation tag, which let one key authorise another to sign events on its behalf.

Deriving a key from a BIP39 mnemonic along the m/44'/1237' path.

Kind 1040, which carries an OpenTimestamps proof that another event existed before a given Bitcoin block.

36787: Music Track (addressable)

Kind 9, a chat message, whose replies are further kind 9 events quoting their parent.

Kind 30078, where an application stores data it has no intention of sharing with any other.

Kind 11, a forum thread with a title, whose replies are NIP-22 comments rather than nested notes.

Kind 30166, relay discovery events published by monitors, describing what a relay claims to be and whether it answers.

The proxy tag, which links an event bridged from another protocol back to the object it came from.

Podcast episodes published as events, so a feed stops depending on one URL staying alive.

This spec defines the method for notifying another npub that you have made a monetary payment to one of their payto URI addresses or zap wallets, and the method for the recipient to attest to the receipt of the payment/tip or zap. The attested-to payment notification or zap receipt can then be rendered in threads as superchats.

Remove gatekeepers from email. Use Nostr as transport instead of SMTP between users.