I submit articles for publication to various aviation enthusiast magazines. ALL photos were marked on back with name of submitter but not copyright.
All agreements are verbal.
The way the question is asked, might require writing a treatise to explain all the aspects. The creator has a basic right. A loss of the physical article does not change the legal status but can muddy the waters if care is not taken. I submit articles for publication to various aviation enthusiast magazines. ALL photos were marked on back with name of submitter but not copyright.