RE: What is the difference?
I don't thinnk there's any real definite answer.
The Alberta Bowzone apparently will count for the next world record archery buck, assuming the Zaft buck is accepted, and could very well produce the next world record after that. You and I can't hunt there, however, so is it really a "world record"? Sure it is, just seems funny is all, especially since the area of Saskatchewan where the Hanson buck came from is not open to nonresidents either. There's you B&C "world record". The areas producing the most record class animals cannot be hunted, even by lottery, by US residents.
As for the Pennsylvania example, perhaps they thought a bass trapped in a private pond is't going anywhere, but a big old buck has undoubtably crossed many, many property lines in his lifetime.
Good question.
"In heaven, even the fish have antlers"