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With the development of the times, the existing social security system can no longer meet people&#x2019;s needs in terms of providing transparent, distributed sharing, tamper-proof, traceable, consensus trust and trustworthy services. Furthermore, they are centralized and subject to a single point of control and failure. In this context, we propose a consortium blockchain-based solution to establish and improve social security informatization to meet the above challenges. In this article, we present specific business situations for three important social security services. Namely, apply for social insurance, apply for social assistance and social benefits online. Our proposed solution also provides a multi-party trust and data sharing mechanism, and also demonstrates the integration of blockchain and Interplanetary File System (IPFS) storage systems to facilitate the security of approval documents, photos and videos related to the processing of social security services Accessibility and traceability. It also introduces the implementation and testing details of the algorithm in the smart contract, and expounds how to apply it in the automatic approval of social security business to reduce the workload of existing manual review. Finally, by comparing with the existing system, it is discussed that our solution has great advantages in promoting the online processing of social security business, and the safe access and traceability of approval documents, photos and videos.

Blockchain-Enabled Social Security Services Using Smart Contracts