Block chain-based information query method and system

A technology of information query and block chain, which is applied in the field of communication and product certification, can solve the problems that the barcode itself and its internal information do not have security protection, the certification and tracking system is not perfect, and it is easy to be illegally used and tampered with. Safe and reliable effect

Inactive Publication Date: 2018-10-26
林清华
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  • Abstract
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Problems solved by technology

[0003] However, the current product authentication and tracking system in the market is not perfect, it can only verify the authenticity of the product and whethe

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  • Block chain-based information query method and system

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0025] Such as figure 1 As shown, a block chain-based information query method provided by the present invention includes

[0026] Block chain establishment steps: establish a block chain to back up the specified information corresponding to each product label in the central database. The blockchain includes key nodes and participating nodes. Key nodes have their own server systems to independently store ledgers. Participating nodes are public nodes with designated IP addresses. Key nodes are key part...

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Abstract

The invention provides a block chain-based information query method and system. The method comprises the steps that block chains are built to backup designated information corresponding to each product tag in a central database; the designated information is added into the corresponding block chains according to numbers of the product tags; and after a seal QR code of one product tag is scanned for the first time, the scanning date and time are recorded in the corresponding block chain and the central database, and the corresponding block chain is closed. According to the method and system, the block chains are combined with the product tags, and whether or not products are used, open or invalid can be queried; the condition that some block chain and tag are used in other products is prevented; and the condition that anyone or even the central database tampers data is prevented, information addition is unidirectional, operation is finished after the seal tag is scanned, and therefore the data is more secure and more reliable.

Description

technical field [0001] The present invention relates to the technical field of communication and product authentication, in particular, to an information query method and system based on blockchain. Background technique [0002] Product certification and tracking refers to the use of barcodes to mark barcode labels for major components in the automated product assembly line and various processing processes. After being collected and decoded by the barcode reader, the barcode information is entered into the database of the computer service. Each product and major component will have a unique barcode. No matter where the product is sent, a record will be kept. If there is a problem, just read the barcode on the product, and all the relevant data of the product can be called out in the database, which greatly facilitates the quality tracking and after-sales service of the product. [0003] However, the current product authentication and tracking system in the market is not p...

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Application Information

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IPC IPC(8): G06K17/00G06Q30/00G06F17/30
CPCG06K17/0025G06Q30/018
Inventor 林清华
Owner 林清华
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