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:
May. 20, 2025
Filed:
Mar. 07, 2022
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Digital Solutions Corporation, Kawasaki, JP;
Kotaro Endo, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA DIGITAL SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
A tampering validation method according to an embodiment includes: calculating a block hash based on other block hashes of a plurality of other blocks and unique information and generating a blockchain to which a block containing the calculated block hash is connected; in response to reception of a validation request for a validation block contained in the blockchain, generating a certificate used for recalculation of recalculation blocks containing block hashes that are dependent on a block hash of the validation block, for the other block hashes; and in response to reception of the certificate, validating the validation block by recalculating block hashes of the recalculation blocks using the certificate.