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:
Dec. 28, 2021
Filed:
Dec. 30, 2020
Alipay (Hangzhou) Information Technology Co., Ltd., Zhejiang, CN;
Alipay (Hangzhou) Information Technology Co., Ltd., Zhejiang, CN;
Abstract
Disclosed herein are methods, systems, and apparatus for processing blockchain-based guarantee information. One of the methods includes receiving a cyphertext of a digital document specifying a guarantee from a first computing device associated with a guarantor and one or more zero-knowledge proofs (ZKPs) related to one or more values associated with the guarantee; verifying that the one or more ZKPs are correct; storing the first cyphertext to a blockchain based on performing a consensus algorithm; receiving a first message from the first computing device associated with the guarantor, the first message including a request to cancel the guarantee; storing the request to cancel the guarantee in the blockchain; sending a second message to a second computing device associated with the beneficiary or a representative of the beneficiary; and receiving a third message from the second computing device associated with the beneficiary or the representative of the beneficiary.