Secp256k1 on Nostr: whut?

{ "id": "5c64ae4ddab9884a64e515934f4826eb48b9b6a88facf3e30452e3ddd8da6adf", "pubkey": "c9d40f349a98b0bc2d1602db503532e2d98724073b914dc8771c463983b4dcb7", "created_at": 1725252567, "kind": 1, "tags": [ [ "e", "62e7996e0f36d72c00e068a48e1c6aa14e36871815451aea4c36ac5f4c0aa3bc", "wss://relay.primal.net", "root" ], [ "e", "e716c97be1389d8054cb5030e5d4ec7cbf3f7073cd4b443d6a33498516c80064", "wss://relay.primal.net", "reply" ], [ "p", "c9d40f349a98b0bc2d1602db503532e2d98724073b914dc8771c463983b4dcb7" ], [ "p", "61066504617ee79387021e18c89fb79d1ddbc3e7bff19cf2298f40466f8715e9" ] ], "content": "whut?", "sig": "764c2c8e62e2017c8f86ffd44284fbf0d6c3025fd31ee64834924ac76bf243e572b881ef7a0490ec7f86e3c6bb950ed4b2c0d2721e069bf31618c0166118cc9f" }