[Zope] how can you tell who created an object in Zope?

[Chalu Kim]

I have started building asset management/role-based publishing system
for multimedia application. It struck me that I could not tell who
created objects in the first place. I see in undoable_transaction
"user_name" by following UndoForm.

I was building author into a few Z classes we fashioned for each
multimedia type. Then, why bother because I have seen in UndoForm the
user name of each undoable action. So, I backed out and started looking
to see if there is pre-built in Zope. 

What I would like is to be able to tell who created an object? Is there
an easy way to do this?

Perhaps, I need to stare at undoLog?