Data value voucher and verification proving and recording method and device based on block chain

Abstract

The invention relates to a block chain-based data value voucher and verification proving and recording method and device. The method comprises the steps of receiving a data value voucher and a verification certificate; extracting an independent verification identifier and a value proof identifier; obtaining a first hash value according to the block chain node and the independent verification identifier, and obtaining a second hash value according to the trust probe type and a neighbor block chain node connected with the block chain node; constructing a vector matrix by taking the first hash value as a row vector and the second hash value as a transposition vector, and querying whether a record path which is the same as the vector matrix exists or not by taking the independent verification identifier and the vector matrix as a record path; if the same recording path exists, acquiring a recording path address and a port key, and recording the certificate and the vector matrix by taking the independent verification identifier as a starting point and taking the sum of the first hash value and the second hash value as an end point under the recording path based on the recording path address and the port key, so the security of certification and recording of data value vouchers and verification can be improved.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a proof and recording method and device for data value certificates and verifications based on block chains. Background technique [0002] In the era of big data, data has become a new economic asset class like currency or gold. Massive data itself has certain value. Of course, according to the classification of data, the value of data is also different. The value of data is usually expressed by data value certificate and verification, so the proof and record of data value certificate and verification are particularly important. important. In related technologies, but in the current system of recording and proving data value certificates and verifications, since large-scale data needs to share resources with each other, data value certificates and verifications are also used for transactions on a large scale, so that data value The security of credentials and verification ...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of this disclosure is to provide a proof and recording method and device for data value certificate and verification based on blockchain, so as to solve the problems in related technologies Issues with low security of recorded data value credentials and verification

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