Credible block data dynamic deleting method

Abstract

The invention discloses a credible block data dynamic deleting method, which comprises the following steps of S1, when any node in a blockchain system generates a new block, searching a deletion pointon the blockchain of a current node for generating the new block; S2, retrieving and deleting deletable data in all blocks in a preset deletion period according to the deletion point, and combining the blocks without the deletable data to obtain a compressed block; S3, embedding the compressed block into a new block generated by the current node to obtain a combined block; S4, broadcasting the generated new block to other nodes by the current node, and repeatedly executing the steps S1 to S3 to delete the blockchain corresponding to each node to obtain a combined block by other nodes; and S5,repeatedly executing the steps S1 to S4, and continuously and dynamically deleting the block data according to the generation period of the new block; the deletion method provided by the invention has periodicity and continuity, and the blockchain system can automatically and continuously execute data deletion in a long-term operation process to release a storage space.

Description

technical field [0001] The invention belongs to the technical field of distributed systems, and more specifically relates to a credible blockchain dynamic pruning method. Background technique [0002] With the increasing frequency of transactions in the blockchain and the large-scale popularization of blockchain applications, the amount of information in the block will continue to increase. The current blockchain adopts a chain structure for storage. The mining machine stores the hash value of the parent block and packs other information into the current block. The current block spreads, accepts, and verifies in the network, and finally completes the Block consensus. The blockchain depends on the parent block during verification, and the parent block depends on the parent block of the upper level. If the previous data in the entire blockchain is tampered with, it will cause the parent block to be abnormal, resulting in subsequent mine On-board consensus could not be comple...

AI Technical Summary

Problems solved by technology

[0006] Aiming at at least one defect or improvement requirement of the prior art, the present invention provides a credible method for dynamically deleting block data, which realizes dynamic deletion of block chain data while retaining the characteristics of the original block chain. Pruning, the purpose of which is to solve the problem of tight storage space of complete block data and difficult synchronization caused by the increase of block data

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