Nostr yog dab tsi? Lub network decentralized raws li cryptographic keypairs thiab uas tsis yog phooj ywg-rau-peer, nws yog super yooj yim thiab scalable thiab yog li ntawd muaj caij nyoog ua hauj lwm. Lub social network uas daws teeb meem Mastodon thiab Scuttlebutt network.