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:
Jun. 02, 2020
Filed:
Dec. 17, 2019
Alibaba Group Holding Limited, Grand Cayman, KY;
Dayi Yang, Hangzhou, CN;
Alibaba Group Holding Limited, Grand Cayman, KY;
Abstract
Consensus methods, systems, and apparatus, including computer programs encoded on computer storage media, are provided. One of the methods is to be implemented on a blockchain maintained by a number (N) of nodes. One of the nodes acts as a primary node and the other (N−1) nodes act as backup nodes. The method includes: detecting a change in a current height H of the blockchain; determining the primary node based on a parameter P and the number of nodes N, wherein the parameter P is proportional to the current height H of the blockchain; in response to determining that the one of the N nodes is the primary node, executing a PBFT normal operation protocol as the primary node; and in response to determining that the one of the N nodes is not the primary node, executing the PBFT normal operation protocol as one of the backup nodes.