关键词: 区块链, Fabric, 医药, 防伪溯源

Abstract: This paper presents a blockchain-based medical anti-counterfeiting traceability system which can solve the problems of centralization and effortlessness to falsify, incomplete information memory and information security in the current medical anti-counterfeiting traceability system. The system is created in the platform of the Hyperledger’s Fabric blockchain, and the system of computer environment is equipped with three organizations：pharmaceutical factory, dealer, and hospital. The chaincode is developed by using the Go language, combines with traceability function of the medicine in the chaincode, uses Node. js to write the client program and initiate the query request. Finally, the accounts of authenticated user can be used to query the drug information on the webpages, and the time of query response is 22?ms on average. The characters of unchangeable modification of data, time stamp and transaction traceability in blockchain can be well applied to the medical anti-counterfeiting traceability system which makes the system traceability function more complete, and consumers can get all traceability information, including production information, logistics information and use information of drugs.

Key words: blockchain, Fabric, medical, anti-counterfeiting traceability