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:
Oct. 25, 2022
Filed:
Jan. 09, 2020
Digital Transaction Limited, Hong Kong, CN;
Ian Yuan Yuan Huang, Hong Kong, CN;
Eric Zhiqiang Ma, Hong Kong, CN;
Eternal Paradise Limited, Mahe, SC;
Abstract
One example embodiment of the present invention is a method for conducting an imperative removal of at least one data record among peers to support ability to forget in blockchain. Each peer participating to a blockchain system has its own copy of a blockchain in a blockchain system. The method includes depositing the at least one data record to its designated data storage system by at least one peer; storing a cryptographic hashing pointer as a data item in a first block of its own copy of the blockchain by each peer; storing a deletion item in a second block of its own copy of the blockchain by each peer; and deleting the data record from the designated data storage system by each peer when the deletion item for the data record is found on the blockchain.