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:
Mar. 01, 2022
Filed:
Jun. 08, 2021
Alipay (Hangzhou) Information Technology Co., Ltd., Zhejiang, CN;
ALIPAY (HANGZHOU) INFORMATION TECHNOLOGY CO., LTD., Hangzhou, CN;
Abstract
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing blockchain-based private transactions are provided. One of the methods includes transmitting, at a first blockchain node of a number (N) of blockchain nodes that are involved in a private transaction, the private transaction to each of a plurality of second blockchain nodes of the N blockchain nodes, wherein N is at least four, at least (N−F) signatures certifying the private transaction respectively from at least (N−F) blockchain nodes of the first and second blockchain nodes, wherein F is a largest integer no more than (N−1)/2; and submitting, at the first blockchain node, a hash value of the private transaction in association with the at least (N−F) signatures to one or more blockchain nodes of a public blockchain for adding into the public blockchain.