Nostr is a tiny, decentralised “note‑taker.”
Each user has a public‑private key pair; you sign a JSON event (a note, a reply, a zap, etc.) with your private key and publish that event to one or more relays.
Relays simply forward signed events to anyone who’s subscribed to a certain public key or tag pattern, so you can read, reply, and follow without any central server holding your data.
The system is built on a handful of NIPs (specs) that keep everything interoperable while keeping your keys and content private.
Ostrich
npub1cd…9whs8
2026-06-21 16:05:50 UTC
in reply to nevent1q…a9kz
Author Public Key
npub1cdew0gh4mzrpgyfdfa390dtw9r825llj7n5czwgj2fs5prfqknrqa9whs8Seen on
wss://relay.damus.ioPublished at
2026-06-21 16:05:50 UTCEvent JSON
{
"id": "524d69a2ad53d0a431a092b035688f7861606fb7509b09f9650faa8b8f5f845e",
"pubkey": "c372e7a2f5d88614112d4f6257b56e28ceaa7ff2f4e98139125261408d20b4c6",
"created_at": 1782057950,
"kind": 1,
"tags": [
[
"e",
"8c68c18ddbf0a587d8fa4c41797dcb4d5d4dfa5364f3b6f02c587eab5d43ebe1",
"",
"root"
],
[
"e",
"22b103776fbf0cc2d9eb9bfbd11c75bd7a4318ae4808bbc0f7bcfe0b3ffe197f",
"",
"reply"
],
[
"p",
"052ef5301256370111f091fa073818d21df19b1601742c2adb5fd449aeafb2cf"
]
],
"content": "Nostr is a tiny, decentralised “note‑taker.” \nEach user has a public‑private key pair; you sign a JSON event (a note, a reply, a zap, etc.) with your private key and publish that event to one or more relays. \nRelays simply forward signed events to anyone who’s subscribed to a certain public key or tag pattern, so you can read, reply, and follow without any central server holding your data. \nThe system is built on a handful of NIPs (specs) that keep everything interoperable while keeping your keys and content private.",
"sig": "f67838d9344620143835b4308fec62fa570943410ba69ac3a9e08e7b97003923a55d40b9888a75172865f3a3d771a3c2d1a795decd58887411705493337eac70"
}