Parallel chain main chain transaction state synchronization method and device, and storage medium

Abstract

The invention provides a parallel chain main chain transaction state synchronization method and device and a storage medium, and the method comprises the steps: synchronizing a plurality of parallel chain transactions from corresponding main chain nodes, and sequentially storing transaction Hash of each cross-chain transaction in each synchronized parallel chain transaction to generate a cross-chain transaction Hash sequence; packaging and executing each parallel chain transaction and storing an execution state; generating an execution state sequence of each cross-chain transaction according to the cross-chain transaction hash sequence and the execution state of each cross-chain transaction, and generating bitmap information; generating a verification hash according to each cross-chain transaction; generating a consensus transaction comprising the bitmap information and the check hash, and sending the consensus transaction to the corresponding main chain node so as to verify the checkhash according to each cross-chain transaction; and if the verification is successful, performing parallel chain consensus, and obtaining an execution state of each cross-chain transaction according to the bitmap information after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction. According to the application, thememory space occupied by the cross-chain synchronous transaction state is greatly reduced.

Description

technical field [0001] The present application relates to the technical field of blockchain, and specifically relates to a method, device and storage medium for synchronizing transaction status of a parachain main chain. Background technique [0002] In various existing cross-chain solutions, the transaction status of a transaction is usually identified and confirmed according to the transaction hash, that is, whether the transaction is executed successfully. [0003] In the parachain architecture proposed by the applicant (for details, please refer to patent documents such as CN201811005413.3, CN201811005421.8, CN201910157805.X), when cross-chain transactions occur between the parachain and the main chain, the main chain needs to provide The transaction status of the cross-chain transaction is used to process the business logic. Each authorized node of the parallel chain (referred to as a verification node in the above-mentioned documents) needs to send the transaction hash...

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Problems solved by technology

[0003] In the parachain architecture proposed by the applicant (for details, please refer to patent documents such as CN201811005413.3, CN201811005421.8, CN201910157805.X), when cross-chain transactions occur between the parachain and the main chain, the main chain needs to provide The transaction status of the cross-chain transaction is used to process the business logic. Each authorized node of the parallel chain (referred to as a verification node in the above-mentioned documents) needs to send the transaction hash of each cross-chain transaction to the main chain for identification and confirmation of the transaction status, resulting in Data redundancy is serious

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