If you look, there is a single json with that hash and update info. The rest is for additional features. For example: when searching you need to find info fast when having more than a million files that include movies and books. So there is another json there which includes text from videos and summaries from PDF books to ease finding them inside an ocean of files. 1 TB memory cards are cheap nowadays, so we needed a way to search things at level offline with delays. Difficult to get simpler than two or three files as you see there.