theosintvault/osint-investigation-notebook — reverse-engineered prompt

Build me a simple investigation notebook that runs entirely in the browser and keeps everything on the user’s device. I want it to feel like a local first logbook for OSINT or digital investigation work, where someone can record leads as they develop, keep a clear timeline of subject pivots, and save evidence details in one place. Each entry should let me store notes, source URLs, and a cryptographic hash for the evidence so I can preserve what I found.

The big requirement is privacy and offline use. Nothing should be sent anywhere, and it should still work with no internet once it is loaded. Use browser storage so the data persists between sessions, and make it work best in Chromium based browsers. Keep the interface clean and fast, like something I can open during a live investigation and keep updating in real time without worrying about syncing or accounts. If you need details, check current browser storage docs online.