Specifications about #nip

How a client on Android asks a signer application on the same device to sign, so it never handles the private key.

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.

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.

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.

Kind 31234, an encrypted draft of an unsigned event of any kind, stored on relays for its author alone.

Kind 30023, long-form articles written in Markdown, addressable so their author can revise them in place.

The emoji tag, which maps a shortcode written in the content to an image URL.

How to write a mention inside content: a nostr: URI in the text, and nothing else demanded of the reader.