Research On The Traceability System Of China's Pharmaceutical Cold Chain Logistics Based On Blockchain

The traceability of pharmaceutical cold chain logistics is limited by the existence of centralized units such as system servers,databases,etc.,which is susceptible to data tampering or malicious attacks.It is difficult to fully guarantee the accuracy and authenticity of data information,making drug traceability meaningless.Recently,blockchain technology has gained active research and application in all walks of life including logistics industry due to its advantages of decentralization,timestamp,tamper proof,etc.,which can effectively solve all kinds of disadvantages of traditional centralized traceability method and prevent data attack and malicious tampering.This thesis describes the background and significance of pharmaceutical cold chain logistics traceability.After the introduction of pharmaceutical cold chain logistics and blockchain technology,it analyzes the general situation of existing pharmaceutical cold chain logistics traceability.By comparing the feasibility and advantages of applying blockchain to logistics information traceability,a pharmaceutical cold chain logistics traceability system based on blockchain technology is proposed.Through the analysis of the process of vaccine cold chain logistics,this thesis designs and implements the tracing system of medicine cold chain logistics based on Ethereum as the development platform,and verifies its function.The research of this thesis shows that the application of blockchain technology in pharmaceutical cold chain logistics information traceability is feasible.Thanks to the good technical characteristics of blockchain,the system effectively solves the problems such as high degree of traditional traceability centralization and poor data security.With the demand of industry traceability system and the in-depth research of blockchain technology in the future,the pharmaceutical cold chain logistics traceability system based on blockchain is expected to be more perfect and gradually accepted by the market.