A food and medicine traceability system and method based on a block chain
A blockchain and food technology, applied in the blockchain field, can solve problems such as hidden dangers to people's life safety and social impact
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Embodiment 1
[0027] refer to figure 1 ,Such as figure 1 As shown, a blockchain-based food and drug traceability system includes:
[0028] Information recording module: In the links of food and drug production, shipment and distribution, blockchain is introduced to record the operation information of these important links;
[0029] Data on-chain module: Use signature and encryption technology to record the content, call the blockchain smart contract to realize blockchain data on-chain, synchronization, consensus, and eliminate human intervention;
[0030] Retrieval module: scan food and drug anti-counterfeiting QR codes, call the blockchain data retrieval service, and retrieve traceability information on the blockchain;
[0031] The information recording module is the entry point of the business data on-chain. At these entry points, the core and important on-chain data information is recorded to provide data sources for the data on-chain module; the data on-chain module uses smart contrac...
Embodiment 2
[0033] refer to figure 2 ,Such as figure 2 As shown, a blockchain-based food and drug traceability method includes the following steps:
[0034] S1, the information recording module introduces the blockchain in the links of food and drug production, shipment and distribution, and records the operation information of these important links;
[0035] S2, the data chaining module uses signature and encryption technology to record the content, and calls the blockchain smart contract to realize blockchain data chaining, synchronization, and consensus, eliminating human intervention;
[0036] S3, the retrieval module scans the anti-counterfeit QR code of food and drug, calls the blockchain data retrieval service, and retrieves the traceability information on the blockchain.
[0037] The step S1 specifically includes: the information recording module introduces the block chain in the link of food and drug production, shipment, and distribution, records the operation information in...
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