This may not be in the MVP. If possible, carry over provenance information along with selected text, so that is automatically included in the wiki you are creating. For browsers displaying local files, allow only relative links.

This goes along with author attribution tracking. As there, the easier it is to do, the more likely people are to do it, and therefore to allow the system to track attribution easily.

I don’t know whether selecting text from a browser automatically includes URL information or not. If not, then perhaps all distributed wiki sites could include that in the client-side code? I would not include editing history with this. Editing history can be kept at the source server.

In principle, I would guess this would depend on the DOM.

Fedwiki allows something similar, but its document model is incompatible with the DOM on the rest of the web.