Abstract: The present disclosure relates to improved systems, methods, apparatuses, and techniques providing data backup, restoration, and verification functions. In certain embodiments, a backup storage platform provides backup services for files stored on the client servers. The backup storage platform can execute verification functions that verify the integrities of the backup copies by determining whether the backup copies have become corrupted, determining whether the backup copies are restorable, and determining whether the backup copies include the most current or contemporaneous information.