Exploration and Practice of Blockchain Universal On-Chain Data Structure in Business Systems

Blockchain, with its distributed, transparent, and tamper resistant characteristics, can effectively build a trust and collaboration network when facing data assetization, which is the process of transforming data into valuable assets. Blockchain can perfectly meet the needs of data confirmation, orderly circulation, and transparent supervision in various domains and scenarios. At the same time, the demand for blockchain technology for important business data applications in various industries is also increasing rapidly. However, from classic scenarios of blockchain applications, such as cryptocurrency and smart contracts, it has been found that the structure of transaction data stored on blockchain is relatively simplified and standardized. The difficulty of implementing solutions to enable blockchain to carry various complex business data with different formats and requirements can be imagined. Therefore, in the practice of blockchain technology in general business systems, the design of on-chain data structures, which are the ways to encode and store business data on blockchain, often becomes crucial and challenging. By practicing the scenario of "infectious disease report card" certificate storage and query, which is a use case of blockchain for public health management, we attempt to summarize a universal uplink structure to guide general business systems in implementing key business data blockchain solutions effectively and efficiently.