Vaccinating the global population against Covid-19 is one of the biggest supply chain management challenges humanity has ever faced. Rapid supply of Covid-19 vaccines is essential for successful global immunization, but its effectiveness depends on a transparent supply chain that can be monitored. In this research, we have proposed an approach based on blockchain technology, which is used to ensure seamless distribution of the Covid-19 vaccine with transparency, data integrity, and full traceability of the supply chain to reduce risk, ensure safety, and immutability. A vaccine supply chain needs to update the status of the vaccine at every stage, and any problem in the supply and distribution path can lead to irreparable damage. Currently, the research conducted on the use of blockchain in supply chains is still in the early stages. In this paper, the use of blockchain technology to monitor the vaccine supply and distribution system will be investigated. A model close to reality of today's vaccine supply chains in developing countries is considered and then a new intelligent system for vaccine monitoring in the vaccine supply chain is designed based on the considered model. Also, smart contracts based on a blockchain network is designed to check consumer vaccination records as well as vaccine circulation from beginning to end. The implementation and design of the vaccine supply chain is done using smart contracts on the Ethereum blockchain network. Additionally, the system has been tested on both local networks, the HardHat suite and Rinkbey's test network. The system has also been developed to work seamlessly when it is using an integrated IoT chip that can automatically update a batch's location, temperature, and other physical conditions periodically.

为全球人口接种新冠肺炎疫苗是最大的疫苗之一 供应链管理是人类面临的前所未有的挑战。快速供应 新冠肺炎疫苗对成功的全球免疫至关重要，但其 有效性取决于可监控的透明供应链。在……里面 这项研究，我们提出了一种基于区块链技术的方法， 用于确保新冠肺炎疫苗与 供应链的透明度、数据完整性和完全可追溯性 降低风险，确保安全，一成不变。疫苗供应链需要 在每个阶段更新疫苗的状态，以及供应中的任何问题 而分配路径可能会导致不可挽回的损害。目前，这项研究 对区块链在供应链中的使用进行的研究还处于早期阶段 舞台。本文利用区块链技术对疫苗进行监控 将对供应和分配系统进行调查。贴近现实的典范 今天发展中国家的疫苗供应链的情况 疫苗供应链中疫苗监测的一种新型智能系统是 根据所考虑的模型进行设计。此外，基于 区块链网络旨在检查消费者的疫苗接种记录以及 疫苗流通自始至终。该系统的实现与设计 疫苗供应链使用以太区块链上的智能合同完成 网络。此外，该系统已经在两个本地网络上进行了测试 Hardhat套房和Rinkbey的测试网络。该系统还被开发为 使用集成物联网芯片时可以无缝工作，该芯片可以自动 更新批次的位置、温度和其他物理条件 定期。