Meat individual full-chain traceability method and system based on digital identification
By generating unique feature vectors for individual meat products as 'digital passports' and storing them in the blockchain, the problems of easy forgery and interruption in traditional meat traceability are solved, achieving accurate traceability of individual meat products and the immutability of data, which is suitable for large-scale commercial applications.
Patent Information
- Application Number
- CN202511760333.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-02-27
AI Technical Summary
Traditional meat traceability methods are prone to forgery and interruption, making it impossible to achieve precise traceability at the individual level. Furthermore, data stored in a centralized database is at risk of being tampered with, which reduces the credibility of traceability information.
Multimodal detection is used to generate unique feature vectors for individual meat products as 'digital passports', which are then stored in the blockchain to achieve tamper-proof information recording. The traceability problem is solved by associating and segmenting meat products with digital passports.
Ensuring the uniqueness of individual meat samples and the immutability of traceability data enables precise traceability of cut meat products, demonstrating feasibility for large-scale commercial application.
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of food traceability and blockchain technology, in particular to a meat individual whole-chain traceability method and system based on "digital passport". BACKGROUND
[0002] Traditional meat traceability relies on batch-managed two-dimensional codes or RFID tags. These physical identifiers are easily damaged, lost or maliciously replaced, resulting in interrupted or distorted traceability information. More importantly, when meat is divided, it is difficult to accurately associate the divided parts with the original individual, i.e., it is difficult to achieve "individual-level" accurate traceability. In addition, the data of existing traceability systems are mostly stored in centralized databases, which are at risk of being tampered with, reducing the credibility of traceability information. SUMMARY
[0003] The present application aims to provide a meat individual whole-chain traceability method and system based on "digital passport" to solve the problems of easy forgery, easy interruption, inability to associate divided meat, and low data reliability of traditional traceability methods.
[0004] Technical solution: A meat individual whole-chain traceability method based on "digital passport", comprising: S1. In the slaughtering link, multi-modal detection is performed on the carcass of livestock, spectral and texture features are extracted, a simplified feature vector representing the uniqueness of the individual is generated, and then a "digital passport" identifier of the individual is generated; S2. Bind the "digital passport" identifier with the individual information and store it in the blockchain to ensure that the information cannot be tampered with; S3. In the division link, the information of the divided main part meat is associated with the corresponding "digital passport" and recorded; S4. In the circulation link, the "digital passport" of large bulk primal meat can be verified by rapid feature comparison, and the "digital passport" and whole-chain information of pre-packaged meat can be queried by scanning the two-dimensional code.
[0005] Beneficial effects: The present application generates a non-reproducible "digital passport" using the biological characteristics of meat itself, ensuring the uniqueness and authenticity of the identity from the source. The blockchain technology ensures the non-tamperability of the traceability data. The "main passport associated with parts" mode ingeniously solves the traceability problem of divided meat, ensuring traceability accuracy and feasibility for large-scale commercial applications.
Claims
1. A method for full-chain traceability of individual meat products based on a "digital passport," characterized in that, Includes the following steps: In the slaughtering process, a unique digital passport is created for each individual meat sample. The digital passport is generated based on biometric data obtained from non-destructive testing of the individual carcass. The digital passport and its associated individual information are stored on the blockchain network. In subsequent processing and distribution stages, the segmented products or distribution units will be associated with the digital passport, and the association will be recorded on the blockchain; In the traceability process, the characteristics or scanned identifiers of the meat product to be inspected are verified to retrieve the corresponding digital passport and full-chain circulation information on the blockchain.
2. The method according to claim 1, characterized in that, The biometric data is a 64-dimensional feature vector extracted by fusing near-infrared spectroscopy and macro images.
3. The method according to claim 1, characterized in that, The digital passport generates a unique identifier using a hash algorithm.
4. The method according to claim 1, characterized in that, The blockchain network is a consortium blockchain, with nodes including regulatory agencies, slaughterhouses, and large distribution companies.
5. The method according to claim 1, characterized in that, The association of the segmented products is achieved by binding the meat information of the part with the digital passport ID and recording it on the blockchain.