Electronic archive file evidence storage and verification method and system based on block chain
A technology for electronic archives and verification systems, applied in transmission systems, electrical components, digital transmission systems, etc., can solve the problems of easy forgery, difficulty in keeping secrets, and difficulty in tracing the source of electronic archives, so as to improve service convenience, increase output, and change operation The effect of the system
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Embodiment 1
[0051] Embodiment 1: The method of depositing and verifying encrypted electronic archive files using blockchain technology is as follows:
[0052] The secure storage sub-chain system calls the interface provided by the system described in the present invention through the smart contract to submit the file meta information and chain ID. Creation time, file type, file size, archive file hash, etc., and then submit the archive meta information and chain ID to the production node;
[0053]The production node receives the archive meta information and chain ID for verification, and extracts the version number, hash value of the previous block, Merkle tree root value, and timestamp information to generate a "block header"; the production node receives the archive meta information and the archive file Data verification is performed after the package is completed, and a new "block data" is assembled after verifying the data. The new block contains "block header" and "block data"; the p...
Embodiment 2
[0056] Embodiment 2: The method of depositing and verifying non-encrypted electronic archives using blockchain technology is as follows:
[0057] The archives demand department or the supervision department calls the interface provided by the system described in the present invention through the smart contract in the safe storage sub-chain system to submit and verify the meta-information of the archive. , file number, package hash value, name of the file in the package, file creation time, file type, file size, file hash, etc. are stored in the file meta information list, and then the file meta information is submitted to the production node together;
[0058] The production node of the deposit and verification platform receives the file meta information and verification application, and performs information verification with the received file meta information and the original file meta information and chain ID;
[0059] The deposit and verification system synchronizes the nod...
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