HasH on Nostr: I don’t get it?

{ "id": "b32248ad44d77907ba5a3d3403637b4dd33b2c30cd61756a42aee06a7f5540e3", "pubkey": "1b2f284171d79a904b28654540d76eb104a31373b532da32decae1f576bb70fa", "created_at": 1764650404, "kind": 1, "tags": [ [ "e", "38e17829d3b532a316085e228f8bb2f7517ecef564b16186da1deac399856209", "wss://offchain.pub", "root" ], [ "p", "472f440f29ef996e92a186b8d320ff180c855903882e59d50de1b8bd5669301e", "", "mention" ], [ "p", "7f177706ad6e0aea75a9e3345d9ffdae67676faff249be657b596375e1ced391", "", "mention" ], [ "p", "04c915daefee38317fa734444acee390a8269fe5810b2241e5e6dd343dfbecc9", "", "mention" ], [ "p", "cedab81be42ef47dbde653f4ba7ab25ac3aa32cfc2b672ee0f89c0faf882f13e", "", "mention" ] ], "content": "I don’t get it?", "sig": "61b15aac2da675b722ee9930d75c30c9e76bdee2ca21f9c8c6a9615cb2f81d27ef72fd07dda4220897a3f3b980eb5d9244c1e20453d74f2ebeb3cc3f62056fa3" }