# Blossom nostr integration Blossom uses nostr for public / private key identities. Users are expected to sign "Client Authentication" events to prove their identity when uploading or deleting blobs ## User Server Discovery Users can publish a kind `10063` event with a list of `r` tags indicating where other users should look to find their published blobs ### Example ```json { "kind": 10063, "content": "", "tags": [ ["r", "https://cdn.self.hosted"], ["r", "https://cdn.satellite.earth"] ], "created_at": 1708454797, "id": "...", "sig": "..." } ```