nostrdocs

range	description	NIP
1000-9999	Regular Events	16
10000-19999	Replaceable Events	16
20000-29999	Ephemeral Events	16
30000-39999	Parameterized Replaceable Events	33

name	value	other parameters	NIP
`a`	coordinates to an event	relay URL	23, 33
`alt`	Alt tag	--	31
`d`	identifier	--	33
`e`	event id (hex)	relay URL, marker	01, 10
`g`	geohash	--	12
`i`	identity	proof	39
`p`	pubkey (hex)	relay URL	01
`r`	a reference (URL, etc)	--	12
`t`	hashtag	--	12
`amount`	millisats	--	57
`bolt11`	`bolt11` invoice	--	57
`challenge`	challenge string	--	42
`content-warning`	reason	--	36
`delegation`	pubkey, conditions, delegation token	--	26
`description`	badge description	--	58
`description`	invoice description	--	57
`emoji`	shortcode	image URL	30
`expiration`	unix timestamp (string)	--	40
`image`	image URL	dimensions in pixels	23, 58
`lnurl`	`bech32` encoded `lnurl`	--	57
`name`	badge name	--	58
`nonce`	random	--	13
`preimage`	hash of `bolt11` invoice	--	57
`published_at`	unix timestamp (string)	--	23
`relay`	relay url	--	42
`relays`	relay list	--	57
`subject`	subject	--	14
`summary`	article summary	--	23
`thumb`	badge thumbnail	dimensions in pixels	58
`title`	article title	--	23
`zap`	profile name	type of value	57

type	description	NIP
`AUTH`	used to send authentication events	40
`CLOSE`	used to stop previous subscriptions	01
`COUNT`	used to request event counts	45
`EVENT`	used to publish events	01
`REQ`	used to request events and subscribe to new updates	01

type	description	NIP
`AUTH`	used to send authentication challenges	40
`COUNT`	used to send requested event counts to clients	45
`EOSE`	used to notify clients all stored events have been sent	01
`EVENT`	used to send events requested to clients	01
`NOTICE`	used to send human-readable messages to clients	01
`OK`	used to notify clients if an EVENT was successful	20