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.

Date of Patent:
Aug. 02, 2022

Filed:

Dec. 04, 2020
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Hiroshi Horii, Tokyo, JP;

Kohichi Kamijoh, Tokyo, JP;

Kiyokuni Kawachiya, Kanagawa, JP;

Shohei Ohsawa, Tokyo, JP;

Hironori Takeuchi, Kanagawa-ken, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/23 (2019.01); G06F 16/11 (2019.01); G06F 16/21 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2358 (2019.01); G06F 16/128 (2019.01); G06F 16/219 (2019.01); G06F 16/2365 (2019.01); G06F 16/2379 (2019.01); G06F 2201/84 (2013.01);
Abstract

Verified snapshots are generated by obtaining, from one of a plurality of first nodes, a difference between a common data at a first time point and the common data at a second time point that is different from the first time point, generating a first snapshot of the common data at the first time point based on the difference, obtaining a hash of the common data at the first time point from one of the plurality of first nodes, and verifying the first snapshot at the first time point with the hash of the common data at the first time point.


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