Hope this is reasonably on-topic: what is the Hook’s structure of the link-to-markdown-file called? The non-human-readable string of letters and numbers…
Not:
[MyPhoto](file://Users/daa/photo.jpg)
but instead:
[MyPhoto](hook://file/3GZV7efgn?p=VXNlcnMvYW15b3VuZw==&n=photo.jpg)