Block chain-based data verification method, device, equipment and readable storage medium

Abstract

The embodiment of this application discloses a blockchain-based data verification method, device, device, and readable storage medium. The method includes: the main chain node obtains the data uplink request sent by the side chain node at the first moment; The chain request includes the first block parameters of the side chain block at the first moment; the side chain block refers to the block in the side block chain to which the side chain node belongs; the main chain node according to the first block parameters to generate the main chain block, and add the main chain block to the main blockchain to which the main chain node belongs; when the block verification request sent by the side chain node is obtained at the second moment, the main chain node obtains the block The second block parameter carried by the verification request; the second block parameter refers to the block parameter of the side chain block at the second moment; the second moment is greater than the first moment; according to the main chain block and the second block Parameters to verify the block exception of the side chain block. By adopting this application, the reliability of data in the expanded blockchain can be guaranteed.

Description

technical field [0001] The present application relates to the field of Internet technology, and in particular to a blockchain-based data verification method, device, equipment and readable storage medium. Background technique [0002] With the rapid development of network technology and the emphasis of enterprises on data security, blockchain has received great attention and application. As a new application mode of computer technology, blockchain is essentially a decentralized database, which is a series of associated data blocks (blocks) generated by cryptographic methods. Each data block contains The information of a batch of network transactions is used to verify the validity of the information (anti-counterfeiting) and generate the next block, thereby generating a data chain that cannot be tampered with. [0003] In the existing technology, for a credible blockchain, its storage space is limited. When the number of blocks continues to increase, the available storage sp...

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Problems solved by technology

[0003] In the existing technology, for a credible blockchain, its storage space is limited. When the number of blocks continues to increase, the available storage space corresponding to the credible blockchain may be insufficient. When the capacity is expanded, it is necessary to expand the capacity, such as expanding the capacity to obtain the expanded block chain; in order to ensure the efficiency of the expansion, the private chain is usually used as the expanded block chain, but the credibility of the private chain is weak, and the data in the private chain is easy to be tampered with, resulting in expansion. The reliability of data in the blockchain cannot be guaranteed

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