The mirrors are updated at least hourly from the main distribution database to ensure no stale, removed or corrected data is presented to users.</p> Rights to view, rectify and delete data <p>After proving <strong>ownership</strong> of the IP addresses and domain names, users of the Self Service function can view the currently stored data (without internal history data), and request changes (fix errors and omissions, delete data and so forth).</p> <p>