This is actually common knowledge.
Hip Hop, who was Kanye's manager around the time, said Kanye was sending beat CD's all over the place trying to sell his beats. "Never Change" was a beat he was sending to all the labels and local artists, but nobody wanted to pay him for it. He even had a version with him rapping over it. He was so broke when he did this beat that he couldn't even pay to send it to NY for Jay. So Hip Hop had to Western Union him the money to get him to send over some of the tracks.
Kanye was always giving mad people the same beats. He's talked about that a lot. And whoever paid first would be the one who got to keep it. Hov paid for it and it placed, so it's his track now.