Can users delete proofs once they are uploaded?

The ability for users to delete proofs after uploading depends on the permissions set within the platform. In many systems, certain features, including the deletion of proofs, may be regulated by user roles and permissions. For instance, a user with administrative privileges might have the ability to delete any proof, whereas other users may have limited capabilities to delete proofs, possibly restricted to their own uploads or subject to prior agreement from project leads or owners. This framework allows organizations to manage content more effectively and prevents unauthorized deletions that could disrupt workflows or data integrity.

The other options suggest limitations that don't encompass the complete variety of scenarios that can occur regarding permissions in many platforms, thus providing an oversight on how user roles interact with the feature of proof deletion.