Thanks for the post! Could you walk through the use case a bit more? Typically, objects will be in the baseline as a result of actions by users who do have permissions to edit the relevant "referencing" objects – broadly speaking topics and maps being those that most refer to other objects. So it would be good to hear about the specific use case – how the outcome that you'd be looking to achieve fits in your general flow and involved users for publications.
(Also this may help spark ideas from other Community members who have solved similar problems in different ways.)