But even if you look past the technicals, the example of the AP being a trusted source for who won the super bowl has issues. What if the AP announces team a won, but then 2 months later it comes out that team a cheated and the NFL retroactively changes the winner (similar to lance armstrong getting wins taken away, or in some years the tour determined there was no winner because there was so much doping.). Is the expectation that the AP will update their page which says who won?
While I will concede the example I give above is an extreme edge case, I would also argue that “who won the super bowl” is also an overly simple example.
I suppose you'd have to write your resolution as "apnews.com will at some point publish a page with the <title> tag containing '49ers', 'win', 'Super Bowl'" and hope the possibility of some sort of retraction would be priced into the market.
While I will concede the example I give above is an extreme edge case, I would also argue that “who won the super bowl” is also an overly simple example.