Agricultural product supply chain traceability system and method based on block chain

Abstract

The invention provides an agricultural product supply chain traceability system and method based on a block chain, which mainly solves the technical problems that the traceability speed decreases greatly with the increase of information in the block chain and the traceability accuracy is low. The main steps are as follows: a function selection module sends a source initiation request; the functionselection module sends a source initiation request. The data uplink module responds to the request of starting source and sends the result of starting source. The display module displays the result of starting source; the function selection module judges whether the selling point sells the agricultural products to the consumers or not; the data uplink module receives the new traceability requestsent by the function selection module and sends the traceability request to the traceability module. Information exchange is carried out between traceability module and data uplink module; the data uplink module obtains the added traceability result and sends it to the display module. The display module displays the added traceability results; the traceability module responds to the traceability request sent by the function selection module and sends the traceability result; the display module displays the traceability results.

Description

technical field [0001] The invention belongs to the field of block chain and agricultural technology, and relates to a traceability system and method of an agricultural product supply chain based on block chain. Background technique [0002] Blockchain is a chained data structure that combines data blocks in a sequential manner in chronological order, and is a non-tamperable and non-forgeable distributed ledger that is cryptographically guaranteed. Its most basic concept , is to use block chain data structure to verify and store data, use distributed node consensus algorithm to generate and update data, use cryptography to ensure the security of data transmission and access, and use smart contracts composed of automated script codes to program A brand-new distributed infrastructure and computing method for operating and operating data, with the characteristics of decentralization, immutable information, and privacy protection. [0003] The supply chain of agricultural produ...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and propose a blockchain-based agricultural product supply chain traceability system and method, which is used to solve the problem that the traceability existing in the prior art increases with the increase of information in the blockchain. However, the technical problems of a large decline and low retrospective accuracy

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