Producers usually become the default traffic manager once the room starts moving. That means they also inherit the paperwork problem.
The fastest way to collect splits is to keep the workflow inside the session while the facts are still fresh: title, contributors, roles, percentages, signatures, and recipient delivery.
If the room is not ready to sign on the spot, the next-best path is invite-based completion with a clear audit trail. The critical point is to avoid losing the structured record.
For releases, publishing admin, and sync licensing, clean split documentation is not optional. It is a dependency.