Data processing method and apparatus based on hierarchical chain network

A data processing method based on a hierarchical chain network, the method being performed by a target verification node, the hierarchical chain network comprising a verification network, a service network, and a consensus network, both the verification network and the service network being deployed at a service layer of the hierarchical chain network, the consensus network being deployed at a consensus layer independent of the service layer, a blockchain maintained by the consensus network being configured to store service data of a service submitted by a service node in the service network, M verification nodes being deployed in the verification network, M being a positive integer, the target verification node being comprised in the M verification nodes, and the method comprising:

• obtaining a data location request that carries a target service data identifier and that is forwarded by a verification execution node based on a second node mapping identifier,
• the verification execution node being comprised in the M verification nodes,
• the data location request being a request transmitted by a first service node for target service data corresponding to the target service data identifier,
• the first service node being any service node in the service network,
• the verification execution node being configured to:
• determine a first node mapping identifier of the verification execution node from a mapping space corresponding to the verification network in response to the target service data identifier being identified from the data location request, and
• perform, in a first order obtained by sorting node mapping identifiers in the mapping space in ascending order, data verification on the target service data identifier based on a resource location table associated with a first node address of the verification execution node, to obtain a first data verification result,
• the mapping space comprising node mapping identifiers respectively corresponding to the M verification nodes,
• the node mapping identifiers being obtained by respectively mapping node addresses of the M verification nodes to the mapping space,
• the resource location table being for recording an adjacent node mapping identifier greater than the first node mapping identifier,
• an adjacent node address corresponding to the adjacent node mapping identifier being for storing a service data identifier of the service data that is synchronized from the blockchain,
• the data verification result being for indicating whether the service data identifier obtained through synchronization comprises the target service data identifier,
• the first data verification result being for indicating the verification execution node to:
• in response to the service data identifier obtained through synchronization not comprising the target service data identifier,
• obtain a node routing list maintained by the verification execution node, and
• determine, as the second node mapping identifier, a routing node mapping identifier, among K routing node mapping identifiers recorded in the node routing list, that is found in a second order opposite to the first order and that has a shortest distance from the target service data identifier,
• K being a positive integer greater than 1, and K being less than or equal to a spatial influence parameter of the mapping space;
• and
• performing data verification on the target service data based on a second node address corresponding to the second node mapping identifier in response to determining, based on the data location request, that the second node mapping identifier is a node mapping identifier with a shortest distance from the target service data identifier in the first order.

A data processing apparatus based on a hierarchical chain network, the apparatus running on a verification execution node, the hierarchical chain network comprising a verification network, a service network, and a consensus network, both the verification network and the service network being deployed at a service layer of the hierarchical chain network, the consensus network being deployed at a consensus layer independent of the service layer, a blockchain maintained by the consensus network being configured to store service data of a service submitted by a service node in the service network, M verification nodes being deployed in the verification network, M being a positive integer, the verification execution node being comprised in the M verification nodes, and the apparatus comprising:

• a memory operable to store computer-readable instructions;
• and
• a processor circuitry operable to read the computer-readable instructions, the processor circuitry when executing the computer-readable instructions is configured to:
• obtain a data location request transmitted by a first service node in the service network for target service data;
• determine a first node mapping identifier of the verification execution node from a mapping space corresponding to the verification network in response to a target service data identifier of the target service data being identified from the data location request, the mapping space comprising node mapping identifiers respectively corresponding to the M verification nodes, and the node mapping identifiers being obtained by respectively mapping node addresses of the M verification nodes to the mapping space;
• perform, in a first order obtained by sorting the node mapping identifiers in ascending order, data verification on the target service data identifier based on a resource location table associated with a first node address of the verification execution node, to obtain a first data verification result,
• the resource location table being for recording an adjacent node mapping identifier greater than the first node mapping identifier,
• an adjacent node address corresponding to the adjacent node mapping identifier being for storing a service data identifier of the service data that is synchronized from the blockchain, and
• the data verification result being for indicating whether the service data identifier obtained through synchronization comprises the target service data identifier;
• obtain a node routing list corresponding to the verification execution node in response to the first data verification result indicating that the service data identifier obtained through synchronization does not comprise the target service data identifier,
• the node routing list being for recording K routing node mapping identifiers, the routing node mapping identifier being a node mapping identifier of a verification node that has a preset distance from the first node mapping identifier in the mapping space, K being a positive integer greater than 1, and K being less than or equal to a spatial influence parameter of the mapping space;
• determine, as a second node mapping identifier, a routing node mapping identifier among the K routing node mapping identifiers that is found in a second order opposite to the first order and that has a shortest distance from the target service data identifier in the mapping space;
• and
• transmit a data location request to a target verification node corresponding to the second node mapping identifier, to enable the target verification node to perform data verification on the target service data.