External data verification and tracing method based on vehicle insurance business

Abstract

This invention discloses an external data verification and tracing method based on auto insurance business, belonging to the field of auto insurance business technology. The method includes the following steps: S1, acquiring external data from auto insurance business to form an initial dataset and establishing a master data mapping table; S2, locating verification data blocks based on the master data mapping table, forming verification evidence and writing it into a blockchain smart contract; S3, responding to a tracing request from auto insurance business, extracting verification evidence from the blockchain smart contract, parsing it to obtain an encrypted index, and reproducing local verification values; S4, when the encrypted index and the reproduced local verification values ​​form a continuous verification chain, a complete flow path is formed; S5, when the continuous verification chain is broken, locking the data tampering location based on the timestamp and data association structure and generating a tampering trajectory map. Through steps S1-S5, this invention significantly improves the verification accuracy of multi-source heterogeneous auto insurance data, ensuring the immutability of data operation records.

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