Energy bounty (looking for sources)

I have a question concerning energy bounty.
In evaluation criteria it’s written

If the source fits the criteria, then it will be added to a source register with the name of the source, who
identified it, and when. This source register will help reduce duplication risk.

But on the website, You provide only the list of the states with a number. How can we know if our source was 1. Correct 2. Which sources are already “booked”?

Best regards,