Bitcake on Nostr: whats pv?

{ "id": "b918586037c1da2d2dd0e6c685507547cb2522e17b5ed0d025672484f3658e6b", "pubkey": "34000141410c08cdc5f7b838c1458673653936a8e2890673ac4e937b6c753e9e", "created_at": 1675477751, "kind": 1, "tags": [ [ "e", "5ed1e816d4ae7b9ce0b0f771c5a6ab5c13eabb76909e09081f8721e6f4e798a5" ], [ "p", "c9b19ffcd43e6a5f23b3d27106ce19e4ad2df89ba1031dd4617f1b591e108965" ] ], "content": "whats pv?", "sig": "b21b19739faf703d81550a1437fefaa4c42a9c18e46f7f773f0b239c65ec18f6cc4f67464b026e33a77c706cb4b992ab2717a17a9b8832cd4eaeb1217892b222" }