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. 22, 2023
Filed:
May. 31, 2019
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/23 (2019.01); G06F 16/245 (2019.01); G06F 16/22 (2019.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); H04L 9/06 (2006.01); H04L 9/00 (2022.01);
U.S. Cl.
CPC ...
G06F 16/2379 (2019.01); G06F 16/2246 (2019.01); G06F 16/245 (2019.01); H04L 9/0637 (2013.01); H04L 9/0869 (2013.01); H04L 9/3221 (2013.01); H04L 9/3263 (2013.01); H04L 9/50 (2022.05);
Abstract
An example operation may include one or more of generating, by an executing client, a blockchain transaction comprising an anonymous rating, a proof, a nullifier, and a root node value, receiving, by a smart contract, the blockchain transaction, the anonymous rating related to an authorizing client, verifying the proof with the root node value and the nullifier, verifying that the root node value is a current or a previous merkle tree root node value, adding the anonymous rating to a shared ledger, marking the nullifier as used, and storing the marked nullifier to the shared ledger.