idsera on Nostr: How to know?

{ "id": "d454adcb09e979684bc1a12c85a2622f8bdb5e6d57ab8e9cd293631f2178cd3f", "pubkey": "619af6a60b3fe4c733aaca061c522cc9c7cf1d87ef4c908facc5ed936d3bdf23", "created_at": 1745593742, "kind": 1, "tags": [ [ "e", "9738148544961dd0a276858c84ca255bd4a1d4379359bafbff6ef64b210e096c", "wss://nostr.wine/", "root", "9be0be0e64d38a29a9cec9a5c8ef5d873c2bfa5362a4b558da5ff69bc3cbb81e" ], [ "e", "236314a00c2aa23b007da84497738ad5e21568e45c9f74004d2dffd176dcf655", "wss://nostr.mom/", "reply", "8125b911ed0e94dbe3008a0be48cfe5cd0c0b05923cfff917ae7e87da8400883" ], [ "p", "8125b911ed0e94dbe3008a0be48cfe5cd0c0b05923cfff917ae7e87da8400883" ], [ "client", "jumble" ] ], "content": "How to know?\n\nhttps://video.nostr.build/549c346fbed1a7c49876c54b2a15e981895faa1f2696288f64f353afa7824a08.mp4", "sig": "40d11901fceb6366cdc97874be167f1ee1217df9c1a916369ae7b48cbce22cab06a4e65a6be3571c632de166067b909c75fb50d51c176b0debcc395d130d102f" }