Data auditing method and device based on Merkel tree and block chain

By employing a data auditing method based on Merkle trees and blockchain, and utilizing global indexing and hash calculation, the problem of trust deficiency in cross-institutional data collaboration is solved. This enables efficient verification of data authenticity and integrity without exposing the full amount of data, and establishes a decentralized trust mechanism.

CN121585378AActive Publication Date: 2026-02-27BEIJING QU CREATIVE TECH CO LTD
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Patent Information

Application Number
CN202610100024.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-26
Publication Date
2026-02-27
Estimated Expiration
2046-01-26

AI Technical Summary

Technical Problem

In cross-agency data collaboration scenarios, data users cannot verify the full amount of data claimed by data providers, leading to a lack of trust. Existing solutions are costly or infringe on privacy and cannot effectively prevent data providers from exaggerating the scale by maliciously omitting data.

Method used

The data auditing method based on Merkle trees and blockchain is adopted. By introducing a continuous and unique global index, combined with hash calculation and blockchain notarization, it ensures that the verification of a single data item is precisely bound to the scale of the entire data. The auditor only needs to verify based on its own data and the index and proof provided by the provider.

Benefits of technology

It enables efficient and reliable verification of data authenticity and integrity without exposing the full data content, establishes a decentralized trust mechanism, ensures data sovereignty and privacy, and provides credible comparison benchmarks and evidence storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a data auditing method and device based on a Merkel tree and a block chain. The method comprises the following steps: sending a data auditing request comprising first data to a second server, so that the second server determines a global index of the first data in total data of the second server and Merkel proof of the global index based on the data auditing request; receiving a global index and Merkel proof sent by the second server, calculating a first Hash value of the first data according to a Hash calculation mode which is the same as a leaf Hash value in the Merkel tree, and calculating a first root Hash value based on the first Hash value and the Merkel proof; and acquiring a second root hash value corresponding to the global index from the block chain, comparing the first root hash value with the second root hash value, and if the first root hash value is consistent with the second root hash value, determining that the data audit is passed. According to the scheme, the integrity and authenticity of the data are verified while the data privacy is protected.
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Citation Information

Patent Citations

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