The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Jan. 02, 2019
International Business Machines Corporation, Armonk, NY (US);
Jason K. Resch, Chicago, IL (US);
Vita Bortnikov, Haifa, IL;
Michele Martino Franceshini, Croton on Hudson, NY (US);
Ravi V. Khadiwala, Bartlett, IL (US);
Michael E. Factor, Haifa, IL;
Roberta Jo Cochrane, Mount Kisco, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A method of integrating a distributed ledger represented by a blockchain with a distributed storage network (DSN) begins by sending a proof of existence request to the DSN, the proof of existence request including an object name, an object version, a start time and an end time. The method continues by reading the object metadata for the sent object name. The method continues by checking a revision history from object metadata associated with the sent object name to ensure the object existed by the start time through the end time with no deletions and, if the object did not exist by the start time through the end time with no deletions, rejecting the proof of existence request and returning an error response. If the object did exist by the start time on through the end time with no deletions, the method continues by producing and returning an attestation comprising verification information related to the object.