Answer

Metadata records will be retained (and public) in UltraViolet and GitHub even if files are removed. That said, if it becomes necessary to remove files from your deposit (e.g. due to retraction, unintentional violation of policy), then you should make a request for removal to the UltraViolet service team at uv@nyu.edu. Be sure to include the reasoning behind removing the files from your deposit. Information about the reasons for withdrawal and date of removal will be added to the metadata record, which will remain public forever.