The clear solution is to give each LP different revenue numbers. That will make it trivial to identify the leaker.
What if you give everyone the same numbers in a different order? Or one spelling mistake in each release?
send notice to LP #1. subtract value from sending that note. send new value on a note to lp #2. subtract cost... put a note on all notes that they may be an hour out of date but represent the values as accurately as the law demands for that day.