A cross-subject unique voucher time sequence strong binding record system for four types of service platforms of express, e-commerce, take-out and housekeeping

Abstract

The application discloses a cross-subject unique voucher time sequence strong binding record system for four service platforms of express, e-commerce, take-out and housekeeping, and relates to the technical field of block chain trusted record storage. The system comprises four fixed nodes, a voucher generation unit, a time sequence strong binding unit, an integrity checking unit and a four-element forced checking unit. The previous voucher complete data is forced as the input of the next voucher to form a time sequence strong binding chain which cannot be skipped, paralleled or replaced. The platform operation, service provision, user and supervision four types of nodes are required to be independently checked and all passed to take effect. Only the original data hash digest is read without modification, conversion or mapping, and the system is deployed with non-intrusive middleware. The application solves the technical problems of easy forgery of the four platform vouchers, difficulty in cross-subject verification and uncontrollability of the process, has unique technical features, avoids existing patents, accurately locks the four platforms, has a high authorization rate, cannot be bypassed and can force the platform to comply with rectification.

Description

1. Technical Field This invention relates to the fields of blockchain trusted evidence storage and cross-entity data interaction technology, specifically to a unique credential time-series strongly bound record system for four types of service platforms: express delivery, e-commerce, food delivery, and housekeeping. 2. Background Technology Currently, four types of service platforms—express delivery, e-commerce, food delivery, and housekeeping—face problems such as easily tampered credentials, difficulties in cross-entity verification, uncontrollable processes, and potential conflicts with existing patents. This invention addresses these issues by employing strong temporal binding, mandatory four-element verification, and non-intrusive deployment, thus avoiding existing patents and effectively targeting these four platforms. 3. Summary of the Invention 3.1 Technical Solution The system includes four types of fixed nodes, a voucher generation unit, a time-series strongly bound unit, an integrity verification unit, and a quaternary mandatory verification unit.

[0004] 1. Four types of fixed nodes: platform operation nodes, service provider nodes, user nodes, and regulatory verification nodes, which are independently deployed and data isolated.

[0005] 2. Voucher Generation Unit: Generates a globally unique identifier based on asymmetric encryption, extracts the hash digest of the original data, and generates a service voucher.

[0006] 3. Time-bound unit: The complete data of the previous voucher must be used as the input of the next voucher. It cannot be skipped, cannot be parallelized, and cannot be substituted.

[0007] 4. Integrity verification unit: Node-by-node hash verification; any abnormal node will cause the entire chain to fail.

[0008] 5. Quadruple Mandatory Verification Unit: All four types of nodes must pass verification; none can be missing, otherwise the voucher is invalid.

[0009] 6. Non-intrusive middleware: It only reads raw data, without writing to, modifying, or intruding on the platform system.

[0010] 3.2 Implementation details of time-bound strong binding technology Strong temporal binding is achieved through smart contract state locks. The system maintains a state lock for each process node, and subsequent nodes must query the state of the previous node; if the previous node is incomplete or invalid, the smart contract directly refuses to allow the subsequent node to generate a certificate, returning the error code ERR_PREV_NODE_NOT_COMPLETED. This mechanism technically enforces that processes cannot be skipped or parallelized.

[0011] 3.3 Quadruple Check Communication Protocol The four types of nodes broadcast the verification results via a P2P network, using the gRPC protocol; the verification results are recorded on the blockchain as signed transactions; the smart contract collects the results from the four types of nodes, and if all are consistent, the transaction is valid; if any fails, it is marked as invalid; offline nodes use a timeout retransmission mechanism (30 seconds).

[0012] 3.4 Non-intrusive Middleware Implementation It adopts a read-only RESTful API interface, configures a read-only database account, and receives data change events through Kafka / RabbitMQ; it does not write, modify, or intrude on the platform system. Figure 1 This is a schematic diagram of the overall architecture of the system of the present invention. The diagram includes: platform operation nodes, service provider nodes, user nodes, regulatory verification nodes, and a cross-entity unique credential time-series strong binding system; each node is connected to the system by bidirectional arrows, indicating data interaction, verification and synchronization relationships, reflecting the technical characteristics of independent deployment, data isolation and collaborative verification of the four types of nodes. Figure 2 This is a schematic diagram of the time-bound process of this invention. The service process shown in the diagram is as follows: Initiation → Order Acceptance → Execution → Delivery → Confirmation → Archiving; each step is connected by a one-way arrow, indicating that the previous node must complete the next node before it can be executed, reflecting the technical characteristics of time-bound, non-skippable, and non-parallel.

Claims

1. A cross-entity unique credential time-series strong binding record system for four types of service platforms: express delivery, e-commerce, food delivery, and housekeeping, characterized in that... include: Four types of fixed nodes: platform operation nodes, service provider nodes, user nodes, and regulatory verification nodes; The credential generation unit is used to generate globally unique service credentials, which include a unique identifier, a subject identifier, a timestamp, and a hash digest of the original data. The time-bound unit is used to chain service credentials together in the order of the service process. The complete data of the previous credential must be used as the input item of the next credential. It cannot be skipped, cannot be parallelized, and cannot be substituted. The integrity verification unit is used to perform node-by-node hash verification of the time-series chain. Any tampering, missing, or replacement of any node will cause the entire chain to fail. The quaternary mandatory verification unit is used to require four types of nodes to verify independently. The verification results of the four types of nodes must be consistent, and none of them can be missing. Otherwise, the certificate is invalid.

2. The system according to claim 1, characterized in that, The service credentials include: Express delivery waybill voucher, e-commerce order voucher, food delivery voucher, housekeeping service voucher.

3. The system according to claim 1, characterized in that, The timing chain includes: Initiate → Accept Order → Execute → Deliver → Confirm → Archive; If the previous node is not completed, the next node cannot generate a voucher; if the previous node is invalid, the next node will automatically become invalid.

4. The system according to claim 1, characterized in that, The original data hash digest: It is taken directly from the platform's raw data, without modification, conversion, mapping, or processing; It is used only for credential binding and verification and does not participate in any data calculations.

5. The system according to claim 1, characterized in that, The quaternion forced check is as follows: The platform's operational node verification process is compliant; The service provides node verification operations to ensure authenticity. User node verification result confirmed; The regulatory verification nodes validate the legality of the data. All four types of nodes must pass; if any node fails, the entire chain is invalid.

6. The system according to claim 1, characterized in that, When verification fails: Automatically generate non-deletable exception markers; Synchronize to four types of nodes; Permanently stored on the blockchain, immutable.

7. The system according to claim 1, characterized in that, The time-series chain is automatically synchronized to the judicial evidence storage chain, generating legally valid certificates.

8. The system according to claim 1, characterized in that, The entire time-series chain can be queried through a unique identifier, and cross-verification of four types of nodes is supported.

9. The system according to claim 1, characterized in that, The status of the voucher is updated automatically, and a change in status requires confirmation from all four types of nodes.

10. The system according to claim 1, characterized in that, The system is deployed independently as a non-intrusive middleware, only reading, not writing, modifying, or intruding on the platform system.

11. The system according to claim 1, characterized in that, When the system is used for a courier platform, the time chain further includes: Pickup point, sorting point, transit point, delivery point, and signature point; Each node is strongly bound sequentially; if the previous node fails to complete the binding, the certificate for the next node cannot be generated.

12. The system according to claim 1, characterized in that, When the system is used on an e-commerce platform, the time-series chain further includes: Order placement node, order acceptance node, inventory preparation node, shipment node, and receipt node; Each node is strongly bound sequentially, and the complete data of the previous node's voucher is used as the input voucher for the next node.

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