Blockchain data processing method, apparatus, and device, computer-readable storage medium, and computer program product

An electronic device acting as a local consensus node in a local consensus network, the electronic device comprising a processor and a memory,

• the memory being connected to the processor, the memory being configured to store a computer program, and the processor being configured to invoke the computer program, to enable the electronic device to perform a blockchain data processing method including:
• packaging a local consensus transaction, a main chain binding height, and a main chain read dataset into a local consensus block, the local consensus transaction being a service transaction executed in the local consensus network, wherein the local consensus network is deployed in a service network of a multi-layer chain network, and a core consensus network comprising a core consensus node is deployed in the multi-layer chain network and independent of the service network, and the main chain binding height being a block height of a first global consensus block, the first global consensus block being synchronized from a main chain of the core consensus node when packaging the local consensus transaction, the main chain read dataset being obtained by clearing from a first global contract state and being used for executing the local consensus transaction, and the first global contract state being a read dataset that is read when a global consensus transaction in the first global consensus block is executed;
• broadcasting the local consensus block to a local verification node, the local verification node being configured to obtain a voting consensus result corresponding to a transaction execution result of the local consensus transaction when a synchronized block height is greater than or equal to the main chain binding height, and a synchronized read dataset is consistent with the main chain read dataset, and the local verification node being a consensus node other than the local consensus node in the local consensus network;
• and
• when determining that consensus is reached based on the voting consensus result returned by the local verification node, uploading the local consensus block to a local consensus sub-chain corresponding to the local consensus network, and writing the local consensus block into a local consensus ledger database.

A non-transitory computer-readable storage medium, storing a computer program, the computer program that, when executed by a processor of an electronic device acting as a local consensus node in a local consensus network, enabling the electronic device to perform a blockchain data processing method including:

• packaging a local consensus transaction, a main chain binding height, and a main chain read dataset into a local consensus block, the local consensus transaction being a service transaction executed in the local consensus network, wherein the local consensus network is deployed in a service network of a multi-layer chain network, and a core consensus network comprising a core consensus node is deployed in the multi-layer chain network and independent of the service network, and the main chain binding height being a block height of a first global consensus block, the first global consensus block being synchronized from a main chain of the core consensus node when packaging the local consensus transaction, the main chain read dataset being obtained by clearing from a first global contract state and being used for executing the local consensus transaction, and the first global contract state being a read dataset that is read when a global consensus transaction in the first global consensus block is executed;
• broadcasting the local consensus block to a local verification node, the local verification node being configured to obtain a voting consensus result corresponding to a transaction execution result of the local consensus transaction when a synchronized block height is greater than or equal to the main chain binding height, and a synchronized read dataset is consistent with the main chain read dataset, and the local verification node being a consensus node other than the local consensus node in the local consensus network;
• and
• when determining that consensus is reached based on the voting consensus result returned by the local verification node, uploading the local consensus block to a local consensus sub-chain corresponding to the local consensus network, and writing the local consensus block into a local consensus ledger database.