Puzzles on Nostr: $9 wrench attack

{ "id": "5daf404111ceba083ad0944644adf404c65fa065c5f847ff340335a06887aadb", "pubkey": "50de492cfe5472450df1a0176fdf6d915e97cb5d9f8d3eccef7d25ff0a8871de", "created_at": 1740413891, "kind": 1, "tags": [ [ "imeta", "url https://image.nostr.build/30bdc84dded9a522d148a9fab49bf709e5a462958f239c7c2b61b4d23ff69b7c.jpg", "blurhash eFG[vKM|xtR%t6~pM|RjWAay%2t7a#RjWAxut6t7ofRjkBoeWBoft7", "dim 4284x5712" ], [ "r", "https://image.nostr.build/30bdc84dded9a522d148a9fab49bf709e5a462958f239c7c2b61b4d23ff69b7c.jpg" ] ], "content": "$9 wrench attack https://image.nostr.build/30bdc84dded9a522d148a9fab49bf709e5a462958f239c7c2b61b4d23ff69b7c.jpg ", "sig": "ec48231e9759d88c7c1c0af60b55c016e44bb9ba6f424521459f05b21939540dd96af5b23e04f3674ba7d4c27758f2e7662f1a86538c526617e9418a424ef90a" }