Block chain data synchronous migration method

Abstract

The invention discloses a block chain data synchronous migration method. The method comprises the following steps: a first block chain network and a second block chain network are established; each alliance member reaches a consensus: importing transaction data in a first blockchain network into a second blockchain network as other chain historical transactions, and deploying a synchronization contract in the second blockchain network; an API Sever is established between the first block chain network and the second block chain network, and after the API Sever analyzes the transaction of the first block chain network, transaction information T (n) is read from blocks of the first block chain network through an SDK; and the transaction information T (n) of the first block chain network is submitted to the second block chain network through the synchronization contract as the content of the new transaction in sequence, and data synchronization of the first block chain network and the second block chain network is completed. By synchronizing contract migration data and providing a function of querying other chain historical transactions, the credibility and flexibility of synchronous migration of block chain data are improved.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a method for synchronous migration of block chain data. Background technique [0002] Blockchain technology is an emerging technology in which several computing devices participate in "bookkeeping" to maintain a complete distributed database. The corresponding data storage has the characteristics of decentralization, openness and transparency, plus time stamps and corresponding encryption mechanisms, so that transaction records can be traced and cannot be tampered with, and promote the trust relationship in various transaction links. The field of multi-party collaboration has the prospect of wide application. [0003] With the rapid development of blockchain technology, due to version upgrades, technical architecture adjustments, or changes in upper-level business systems, the original data cannot be identified or new requirements cannot be met. [0004] There are two comm...

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Problems solved by technology

[0003] With the rapid development of blockchain technology, due to version upgrades, technical architecture adjustments, or changes in upper-level business systems, the original data cannot be identified or new requirements cannot be met.

[0004] There are two commonly used methods in the existing technology, one of which is cross-chain, the original blockchain system and the new blockchain system are used as two independent chains, and the original data is called through the cross-chain, although this This method ensures the security and traceability of data, but this method is slow in efficiency. There are two systems that need to be maintained, and the workload and complexity are doubled.

[0005] Another method is to migrate the data in the original blockchain system to the upgraded blockchain system to avoid the problem of data storage incompatibility, and the method of data migration usually resorts to two blockchains The third-party service organization jointly recognized by the system migrates the ledger data on the original blockchain to the third-party service organization, and the third-party service organization migrates the ledger data to the new blockchain, but the whole process needs to rely on the third-party Three-party service organization, low efficiency and low security of data migration

[0006] At the same time, due to the characteristics of the blockchain system, the time stamp of the data in the new blockchain system will be updated to the time stamp at the time of migration instead of the time stamp when the business occurred. This technical problem will also cause the blockchain system to serious trust issues

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