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. 19, 2025
Filed:
Sep. 14, 2022
Nanjing University, Jiangsu, CN;
Matrictime Digital Technology Co., Ltd, Nanjing, CN;
Hua-Lei Yin, Nanjing, CN;
Chen-Xun Weng, Nanjing, CN;
Yao Fu, Nanjing, CN;
Zeng-Bing Chen, Nanjing, CN;
NANJING UNIVERSITY, Nanjing, CN;
MATRICTIME DIGITAL TECHNOLOGY CO., LTD, Nanjing, CN;
Abstract
Method for confirming ownership of digital assets based on hash algorithm and method for tracing to a source of digital assets based on hash algorithm are provided. Entities involved in confirming the ownership of digital assets include an original user, a CA authentication center and a digital asset authentication center. The process of confirming the ownership includes generating a one-time CA certificate by the original user, authenticating the digital assets by the digital asset authorization center and the original user, generating an ownership confirming document by the original user, creating a quantum digital signature by a three-party, and the like. The method for tracing includes generating subsidiary documents in real time, constructing a unique identity for a digital asset at an accessing moment, traceability analysis, and so on.