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:
Sep. 21, 2021
Filed:
Jan. 27, 2021
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Hansong Xiao, Zhejiang, CN;
Ping Zhang, Zhejiang, CN;
Wenhu Kan, Zhejiang, CN;
Qin Liu, Zhejiang, CN;
Liangrong Lin, Zhejiang, CN;
Fuxi Deng, Zhejiang, CN;
Yixiang Zhang, Zhejiang, CN;
Rui Chen, Zhejiang, CN;
Jinming Duan, Zhejiang, CN;
Advanced New Technologies Co., Ltd., George Town, KY;
Abstract
One or more implementations of the present specification provide an invoice access method and apparatus based on a blockchain, and an electronic device. The method includes: receiving an access request initiated by an access user for a target invoice by using a client, the target invoice being encrypted and stored in the blockchain; determining, in response to the access request, whether the access user has an authority to access the target invoice; and in response to that the access user has the authority to access the target invoice, invoking decryption logic provided in a predetermined smart contract to decrypt ciphertext data of the target invoice stored in the blockchain, and returning decrypted plaintext data of the target invoice to the client.