Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and medium for on-chain product data based on blockchain and smart contracts

A smart contract and product data technology, applied in data processing applications, digital transmission systems, instruments, etc., can solve problems that hinder the development of product data on the chain, and achieve the effect of improving effectiveness, improving efficiency, and ensuring security

Active Publication Date: 2021-11-23
CENT SOUTH UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, what data is valid on the blockchain? How to protect some data that needs to be hidden after being uploaded to the chain? Who should manage the data on the chain? What about some data that can be shared? These problems have seriously hindered the development of product data on-chain

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and medium for on-chain product data based on blockchain and smart contracts
  • A method and medium for on-chain product data based on blockchain and smart contracts
  • A method and medium for on-chain product data based on blockchain and smart contracts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a method for chaining product data based on blockchain and smart contracts, such as figure 1 shown, including:

[0045] Step 1. The management center deploys the smart contract on the blockchain to obtain the smart contract address Addr, and the length of the address is 20 bytes. The functions of the smart contract mainly include management of companies with data uploaded to the chain, management of nodes that query data on the chain, and storage of information such as the address of the product data company and the encrypted key. In this embodiment, the functions of the smart contract include:

[0046] Function 1: Enterprises apply to store certain types of product data on the blockchain;

[0047] Function 2: To authorize enterprises that apply for data on-chain, allowing enterprises to store certain types of data on the blockchain, and allowing enterprises to query the product data that the enterprise has already put on the chain;

[0048] F...

Embodiment 2

[0079]This embodiment provides a computer-readable storage medium on which a computer program is stored. It is characterized in that, when the computer program is executed by a processor, the product data storage based on blockchain and smart contract described in Embodiment 1 is realized. chain method.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and medium for chaining product data based on blockchain and smart contracts. The method is as follows: the management center deploys a smart contract; the enterprise acquires a blockchain address on the blockchain; Apply for data on-chain; the management center authorizes the enterprise applying for data on-chain in the smart contract; the authorized enterprise enters the basic information of the data to be on-chain into the smart contract; the management center generates a key for encrypting product data, And encrypt it and store it in the smart contract; the authorized enterprise stores the product data on the blockchain according to the label information format stipulated in the product data on-chain protocol; query the product data that the enterprise has already put on the chain. The invention not only improves the authenticity and effectiveness of the uplink data, but also ensures the security of the uplink data. In addition, the fixed-format tag information defined by the protocol can improve the efficiency of uplink data access.

Description

technical field [0001] The invention belongs to the specific application technical field of block chain, and specifically relates to a method and medium for uploading product data based on block chain and smart contract. Background technique [0002] Today, when product quality and product safety are paid more and more attention, product traceability has become the focus of people's attention. Product traceability monitors the entire life cycle of products to meet consumers' awareness of product anti-counterfeiting, price, safety, etc., to meet the certification requirements of distribution channels for the implementation of product distribution standards, and to meet the needs of enterprises for consumer behavior analysis and regional market analysis. Monitor and integrate strategic needs. At present, the mainstream product traceability system mainly relies on the central database managed by relevant government departments or a core enterprise. The records of product data ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08H04L9/08G06Q40/04G06Q30/00
CPCH04L63/0428H04L67/1097H04L9/0861G06Q30/0185G06Q40/04H04L9/50
Inventor 钟增胜张辰琦吴岱霖杨璐白东英谈宜育周芳芳赵颖施荣华
Owner CENT SOUTH UNIV