Some are. It depends on the kind number.
Each event (note) has a kind number. Kind=1 notes are regular text like this message to you. Kind=7 is a reaction. Kind=5 is a deletion, and so on.
Every event has a unique ID, and so they can’t be replaced by ID alone. Replaceable events have kind numbers in specific ranges. Based on the author’s npub, kind number, and tags (parameters) some events can be replaced by later events.
So for example, if you write a long-form article and want to be able to update it, you could publish it as a parameterized, replaceable event so that later if you want to make edits, relays will accept your replacement event.
jimbocoin / jimbocoin 🃏
npub1v9…x9q3h
2024-08-09 12:52:25
in reply to nevent1q…m7f4
Author Public Key
npub1v9qy0ry6uyh36z65pe790qrxfye84ydsgzc877armmwr2l9tpkjsdx9q3hPublished at
2024-08-09 12:52:25Event JSON
{
"id": "28525472d805e246e594bad3fdf2a13c17c591ca3eba7ab323b76bbdec36fb69",
"pubkey": "6140478c9ae12f1d0b540e7c57806649327a91b040b07f7ba3dedc357cab0da5",
"created_at": 1723207945,
"kind": 1,
"tags": [
[
"e",
"4f1a62d7215dd3183b0604498b0a6b85eb37f4b32ae185aef38e6303226fd79d",
"wss://nostr.wine/",
"root"
],
[
"e",
"95de3a451b731340508cf893a17edb230de236a0f97c0216ef01b087926bfd1c",
"",
"reply"
],
[
"p",
"3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d"
],
[
"p",
"6c6e3e05e1c9d2aae0ed2431544aea411771dd9d81017539af0fd818b2389f28"
]
],
"content": "Some are. It depends on the kind number.\n\nEach event (note) has a kind number. Kind=1 notes are regular text like this message to you. Kind=7 is a reaction. Kind=5 is a deletion, and so on.\n\nEvery event has a unique ID, and so they can’t be replaced by ID alone. Replaceable events have kind numbers in specific ranges. Based on the author’s npub, kind number, and tags (parameters) some events can be replaced by later events.\n\nSo for example, if you write a long-form article and want to be able to update it, you could publish it as a parameterized, replaceable event so that later if you want to make edits, relays will accept your replacement event.",
"sig": "6ed1f1fb80de2adf3717182f8feadbd9371438870cd0ba0a78dd85939b1f63c3421d82e2f163c1eec89a40f2012a3c541616a05e953658bd5b61e98bb11fd3a7"
}