Patent ID: 8631235

Claim:
A system for storing data on a virtual file system using write once read many (WORM) protection, the system comprising: a WORM server in communication with one or more storage devices; a controller in communication with the WORM server; a first time stamping process for creating a first time stamp for a data object based on instructions applied by the controller for storage on the WORM server; and a second time stamping process for creating a second time stamp for the data object for storage on the WORM server, including: executing a hash function on a previously created time stamp to produce a new hash value; processing the new hash value with a digital signature algorithm different from a digital signature algorithm previously used to process a previously produced hash value with respect to the previously created time stamp, to produce a digital signature; and combining the digital signature and hash value to produce a new time stamp to be recorded along with the previously created time stamp.