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:
Jul. 12, 2022
Filed:
Jan. 26, 2021
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Hansong Xiao, Zhejiang, CN;
Dongxu Li, Zhejiang, CN;
Wenhu Kan, Zhejiang, CN;
Ping Zhang, Zhejiang, CN;
Zhen Sun, Zhejiang, CN;
Jinming Duan, Zhejiang, CN;
Liangrong Lin, Zhejiang, CN;
Wei Chen, Zhejiang, CN;
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Abstract
One or more implementations of the present specification provide an invoice invalidation method and apparatus based on a blockchain, and an electronic device. The method includes: receiving an invalidation request that is initiated by an invoice invalidation party for a target invoice recorded in the blockchain; in response to the invalidation request, determining whether the invoice invalidation party has authority to invalidate the target invoice; and in response to that the invoice invalidation party has the authority to invalidate the target invoice, invoking an invoice invalidation logic provided in a smart contract deployed in a blockchain network of the blockchain to invalidate the target invoice.