Building an Enterprise Smart Financial and Tax System based on 'Blockchain + Big Data

This article discusses the construction and application of an ex-ante tax source control system based on "blockchain + big data". The system uses big data technology to collect relevant tax data from different links and completely records it in each block to ensure the consistency of the original data. At the same time, through the setting of public keys and private keys, the identity verification and data privacy protection of each participating subject are guaranteed. The system utilizes the non-tamperability of blockchain technology and the data analysis capabilities of big data technology to achieve precise supervision of tax-paying enterprises. Through the participation of financial institutions, complete recording and safe storage of transaction processes are ensured. This article analyzes the operating process and advantages of the system in detail, and looks forward to its application prospects in tax management.