Peter's Mind Vault

Nostr is a simple, open protocol that enables global, decentralized, and censorship-resistant social media.

Each person uses a client to creates a public/private keypair, create signed messages and publish messages to one or more relays. Relays are simple servers that store messages. People use clients to connect to these relays and retrieve the messages. The protocol defines the kind of messages that can be sent between clients: microblogs, comments, direct messages, reactions, micropayments or any other kind of message that is added to the protocol

You could say Nostr is like Twitter, but instead of one company controlling the database, you broadcast your messages to multiple independant servers.

Key points

simplicity: all content is an event object, signed with the authors private keys. users are identified by their public keys
resilience: doesnt rely on centralised trusted servers, protocol assumes relays come and go, users connect and publish to arbitrary amount of relays
verifyable: nostr accounts are based on public key cryptography, so it is easy to verify if messages are authentic
censorship resistance: users can get banned from relays, but keep their data and are free to move to other relays.