Knowing when a file was uploaded to Nextcloud

Hi, we’re developing some software for a client that uses Nextcloud to store a lot of different files across their different clients. They have a software requirement for us to automatically find and process new files as they are added to Nextcloud. We are using the Webdav API’s search endpoint for this. We want to use this search endpoint to give us a list of all files in Nextcloud of type PDF that were newly added to Nextcloud in the past X minutes. We were trying to use the file creation date field for this but recently learned that this is the original creation date of the file and doesn’t actually give us any indication as to when it was added to Nextcloud. Is there another date field we can use for this or some other option for us so that we can limit the search to only return files that were added to Nextcloud after a certain date and time?

Thank you for your help

Perhaps it works with the admin_audit app?

That’s an interesting thought, but our application will be running on a different network so we wouldn’t have access to any of the audit logs. Our communication to Nextcloud at this point needs to be through one of the APIs.