Aquatic product circulation tracking system and method based on block chain

Abstract

The invention provides an aquatic product circulation tracking system based on block chain, It is used to generate circulation records of aquatic products from fishing, transportation to dining table,and establish decentralized credit mechanism to ensure that the circulation records can not be tampered with and the circulation time of each batch of aquatic products can be traced with a small granularity of time, so as to meet the demand of keeping fresh and alive of aquatic products. At that same time, the invention reduce the time delay and communication overhead of the circulation record and the inquiry, and is convenient for the use of the general consumers.

Description

technical field [0001] The present invention relates to blockchain application technology, in particular to a blockchain-based aquatic product circulation tracking system and method. Background technique [0002] In recent years, food safety incidents have occurred frequently, and a series of quality and safety issues such as bird flu, clenbuterol, melamine, and rice cadmium exceeding the standard have triggered a crisis of consumer trust and are also a major challenge in the country's work in building and developing an honest society. The problem of food quality and safety has become increasingly prominent. Aquatic products such as fish, shrimp, crab, and seafood are important sources of nutrition to enrich people's dining tables, and their safety and quality issues have also received more and more attention. Aquatic products have high protein content and are prone to deterioration. They have requirements for keeping alive or fresh in the circulation process. According to m...

AI Technical Summary

Problems solved by technology

[0007] Since the application of blockchain technology can ensure that the data in the whole link cannot be tampered with and cannot be replaced, then the application of blockchain technology to the aquatic product circulation tracking system can solve the lack of credit of the existing central database and the poor reliability of circulation records , information collection and uploading lags behind and cannot guarantee timeliness, etc.

[0008] However, blockchain technology also has some defects of its own. For example, due to the irreversible nature of blockchain technology, data such as circulation records loaded into the blockchain cannot be changed or revoked. The transaction situation is relatively common, and the perishable nature of aquatic products also requires a certain ability to change the previous circulation records

In addition, there is a delay in transaction accounting in blockchain technology. Taking Bitcoin as an example, the validity of the current transaction needs to be recognized by most nodes, but affected by network transmission, most nodes on the network know that this The transaction has to wait until the next bookkeeping cycle (Bitcoin is controlled at about 10 minutes), and there are still small probability events in the blockchain technology, that is, when two or more nodes compete for bookkeeping power on the network at the same time, then in There will be two or more blockchain branches in the network. At this time, the data recorded by which branch is valid, you have to wait for the next bookkeeping cycle, and finally the longest blockchain branch will determine ; Therefore, the transaction data of the blockchain is delayed

Moreover, each node participating in the blockchain must have a complete account book locally, which requires tracing every record, which leads to a large amount of data that the nodes participating in the blockchain need to process. For example, the node first When joining the blockchain for the first time, it is necessary to download all transaction records in history to work normally, which will inevitably consume a lot of time and communication resources

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