Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 1, 2022
Patent Application Number
16446556
Date Filed
June 19, 2019
Patent Citations
Patent Primary Examiner
A database management system stores an entry in a journal. The journal, upon storage of the entry, comprises a leaf node with a hash value based at least in part on the entry, and a hierarchy of interior nodes based at least in part upon the leaf node. In response to a request to delete the entry, the entry is deleted but the hash value is retained. A cryptographic proof of a second entry stored in the journal is based at least in part on the retained hash value.
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