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:
Apr. 21, 2025
Filed:
Dec. 08, 2022
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2021.12);
U.S. Cl.
CPC ...
H04L 9/50 (2022.04);
Abstract
Provided is a method of managing a data history and a device performing the method. The method of managing the data history includes generating second data based on first data, calculating a second hash value for the second data based on the second data and a first hash value for the first data, and storing the second hash value on a blockchain network to verify the second data, and a history of the first data is verified using the first hash value stored on the blockchain network.