Data asset value evaluation method based on block chain

Abstract

The invention relates to the technical field of data asset value evaluation, and discloses a block chain-based data asset value evaluation method. According to the method, data assets are registered on a block chain, a unique identifier is generated, and an original transaction event flow and an external attribute declaration flow are asynchronously collected based on the unique identifier. The event flow is recombined through an event traceability mechanism, a complete and ordered ownership transfer sequence is constructed, and the traceability of the asset circulation history is realized. The declaration stream is synchronously parsed to obtain quality, permission, and legal status assertions. And performing space-time alignment and association verification on the transaction sequence and the declaration to form a trusted asset state snapshot after cross verification. Based on the snapshot, an on-chain value discovery smart contract is started to execute dynamic estimation, a quantitative value index is calculated, and a confidence interval is delimited. And packaging the indexes and the intervals into a structured evaluation report, and binding the structured evaluation report with a non-tampering record on the chain for output. According to the method, through multi-source data fusion verification, the dynamism and credibility of value evaluation are improved.

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