I assume this information is tracked, since StackOverflow shows me the questions I have upvoted (when going to their question page, I can undo the upvote). I couldn't find any api call that gives this information, and I couldn't find it in the creative commons data dump.
I assume this is not shown for "security" purposes (i.e. this kind of information is not supposed to be advertised), but I figured I'd make sure that I wasn't just missing something.
Is there a way to get that information? Or is it (purposefully) not shown?