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:
Nov. 07, 2023
Filed:
Sep. 22, 2022
Hangzhou Vastchain Technology Co. , Ltd, Hangzhou, CN;
Xiao Luo, Hangzhou, CN;
Xiji Cheng, Hangzhou, CN;
Jian Zhao, Hangzhou, CN;
Zhiwen Zhang, Hangzhou, CN;
Saiwei Song, Hangzhou, CN;
HANGZHOU VASTCHAIN TECHNOLOGY CO., LTD, Hangzhou, CN;
Abstract
A blockchain-based supervision system of hazardous chemical production includes: a collection layer, for collecting production data information, wherein a collection device in the collection layer sets a TEE to encrypt or hash the collected production data information; a data layer, for uplinking a hash certificate of the production data information through an alliance chain, wherein the collection layer communicates with the data layer; a blockchain, for deploying a file uplink contract and encrypting and storing a file on a privacy computing server after the file is connected to the trusted environment; and a privacy computing system, for forming a metadata market of the data from file description information, recording the metadata information of the collected data. A data user applies for the right of use to a production enterprise that produces the data, and after obtaining authorization, the data user performs various applications on the privacy computing system.