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:
Apr. 14, 2026
Filed:
Mar. 03, 2022
Digital Currency Institute, the People's Bank of China, Beijing, CN;
Changchun Mu, Beijing, CN;
Gang Di, Beijing, CN;
Youcai Qian, Beijing, CN;
Qingjie Chen, Beijing, CN;
Jinzhao Du, Beijing, CN;
Digital Currency Institute, The People's Bank of China, Beijing, CN;
Abstract
Provided are a method and apparatus for generating a random number in a blockchain, wherein the method includes: a first random number and a first digest value of the first random number are locally generated by a first node in a blockchain; the first node submits the first digest value to a smart contract; the smart contract broadcasts a first service; the smart contract determines a second node from the at least one blockchain node; when the first service ends, the first node submits the first random number to the smart contract; when the smart contract verifies that the first random number corresponds to the first digest value, the smart contract generates a second random number based on a second digest value of the second node and the first random number; and a second service is started based on the second random number.