A method for anti-counterfeiting and traceability of items realized by using blockchain and its smart contracts

Abstract

The invention discloses an anti-counterfeiting and traceability method for items realized by using blockchain and its smart contract. At the production end, the producer publishes a transaction of deploying the smart contract to the blockchain, and obtains the hash value returned by the blockchain— , then attach the hash value 1 to the surface of the item, then take image 1 of the specified area on the surface of the item, then publish the transaction of deploying image 1 to the blockchain, obtain the hash value 2 returned by the blockchain, and pass it to Smart contract: After the item reaches the consumer through the circulation link, the consumer obtains hash value 1 from the surface of the item, then obtains hash value 2 through the blockchain and smart contract, and then obtains image 1, and then takes an image of the designated area on the surface of the item Second, then identify and compare image 1 and image 2, and realize the consistency verification of the items through the consistency identification and comparison of the images, so as to realize the anti-counterfeiting and traceability of the items.

Description

technical field [0001] The present invention relates to the fields of information processing technology and anti-counterfeiting technology, in particular to an article anti-counterfeiting and traceability method realized by using a block chain and its smart contract. Background technique [0002] In order to distinguish whether the items in circulation have been swapped, people use technologies such as QR codes and RFID. For some circulating items, there is another way to verify whether the item received by the receiver or consumer and the item sent by the sender or producer are the same item through the identification and comparison of the image of the item, which requires the receipt of the item The conditions for the sender of the item to take the image of the item are consistent with the conditions for the sender of the item to take the image of the item, and the sender of the item can transmit the image of the item taken by it to the receiver of the item through a chann...

AI Technical Summary

Problems solved by technology

[0003] Blockchain technology is a collection of computer information technology applications such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. From the perspective of data, the blockchain combines data blocks in a sequential manner in chronological order. A chained data structure, which is characterized by decentralization, openness and transparency, unalterability, and unforgeability. Blockchain technology has broad application prospects in product fidelity and traceability systems, although the application of blockchain technology can guarantee data Anti-counterfeiting and traceability in the circulation process, but there is still a key problem in applying blockchain technology to physical fidelity, anti-counterfeiting and traceability, that is, how to ensure that the physical object corresponding to the data has not been replaced or forged In kind, there is no existing technology that has a good solution for this

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