Why does a Tor post show an ID on mouse-over?
Anons are still asking this question and nobody has provided an answer yet. I guess you dweebs are not very good at sleuthing out a tech question when you can't just ask Google. Not meaning to demean the anons but there does seem to be a dearth of tech expertise on this board. Anyway, enough of that.
Two things can happen when you mouse over a post number. If the post is in the same bread then the data is already in memory so the post can be shown right away. If the post is from a different bread then the data is NOT already present so it has to be retrieved somehow. This is done by fetching the JSON format for the bread in question because this loads much faster than the HTML and doesn't require a lot of complicated parsing to extract the post info from the data stream.
You can verify this by opening the network monitor tool in your web browser. Mouse over one of Q's posts at the top of the bread and see what gets loaded in. For Q's first post, this url will appear:
https://8kun.top/qresearch/res/16504556.json
You can load that link right now in your browser and get a nicely formatted data structure. Click on the arrows to open the top item if it is not already open. Go to item #365 and open that. See that the data point called "id" does NOT show "000000".
The HTML page format has the ID zeroed out but not the JSON. I don't know where the ID actually comes from. Perhaps it is the bread salt which is used to mask the ID so that it is not the same for every bread.