CN110598479B - A data processing method, device and computer readable storage medium - Google Patents

Abstract

An embodiment of the present invention provides a data processing method, device and computer-readable storage medium, wherein the method includes: obtaining a business approval request submitted by a user through a user terminal, the business approval request carries the user's on-chain address, obtaining summary information of first production and operation data related to the user from a first node of a blockchain network according to the user's on-chain address, receiving second production and operation data related to the user sent by an electronic invoice service provider when receiving a notification from the user terminal, after verifying the second production and operation data using the summary information of the first production and operation data, determining the approval result of the business approval request according to the second production and operation data, so as to quickly verify the production and operation data provided by the enterprise and prevent the user from tampering with the production and operation data, thereby ensuring the authenticity and legality of the data provided by the user and reducing the risk during business approval.

Description

A data processing method, device and computer readable storage medium

Technical Field

The present invention relates to the field of computer technology, and in particular to a data processing method, device and computer-readable storage medium.

Background technique

At present, domestic financial institutions have a relatively simple credit investigation method for small and micro enterprises, which basically relies on the information provided by the enterprises themselves and bank statements. In this way, suppliers can easily forge sales records and create false bank statements. At the same time, invoices are used as an economic method for financial quotas. Fake invoices have also become a tool for bad companies to forge credit investigations, and the authenticity and legitimacy of the data used for credit investigations cannot be guaranteed.

Summary of the invention

The embodiments of the present invention provide a data processing method, device and computer-readable storage medium, which can quickly verify the production and operation data provided by the enterprise, prevent users from tampering with the production and operation data, thereby ensuring the authenticity and legality of the data provided by the user and reducing the risk during business approval.

A first aspect of an embodiment of the present invention provides a data processing method, which is applied to a business approval platform, including:

Obtaining a service approval request submitted by a user through a user terminal, wherein the service approval request carries the on-chain address of the user;

Obtain summary information of first production and operation data related to the user from a first node of the blockchain network according to the on-chain address of the user;

Receiving second production and operation data related to the user sent by the electronic invoice service provider when receiving a notification from the user terminal;

After the second production and operation data is verified by using the summary information of the first production and operation data, the approval result of the business approval request is determined according to the second production and operation data.

A second aspect of an embodiment of the present invention provides a data processing method, which is applied to a blockchain network, wherein the blockchain network includes multiple nodes, including:

Receive a data acquisition request sent by the business approval platform, where the data acquisition request carries the user's on-chain address;

Query summary information of first production and operation data related to the user from the blockchain according to the on-chain address of the user;

The summary information of the first production and operation data is sent to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determines the approval result of the business approval request submitted by the user according to the second production and operation data.

A third aspect of an embodiment of the present invention provides a data processing device, which is applied to a business approval platform, including:

An acquisition unit, configured to acquire a service approval request submitted by a user through a user terminal, wherein the service approval request carries an on-chain address of the user;

The acquisition unit is further used to acquire summary information of first production and operation data related to the user from a first node of the blockchain network according to the on-chain address of the user;

A receiving unit, configured to receive second production and operation data related to the user sent by the electronic invoice service provider when receiving a notification from the user terminal;

A determination unit is used to determine the approval result of the business approval request according to the second production and operation data after the second production and operation data is verified by using the summary information of the first production and operation data.

A fourth aspect of an embodiment of the present invention provides a data processing device, which is applied to a blockchain network, wherein the blockchain network includes multiple nodes, including:

A receiving unit, used to receive a data acquisition request sent by the business approval platform, wherein the data acquisition request carries the user's on-chain address;

A query unit, configured to query summary information of first production and operation data related to the user from the blockchain according to the on-chain address of the user;

A sending unit is used to send summary information of the first production and operation data to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determines the approval result of the business approval request submitted by the user according to the second production and operation data.

A fifth aspect of an embodiment of the present invention provides a server, including: a processor and a memory, wherein the processor is used to execute the data processing method described in the first aspect.

A sixth aspect of an embodiment of the present invention provides a node device, including: a processor and a memory, wherein the processor is used to execute the data processing method described in the second aspect above.

A seventh aspect of an embodiment of the present invention provides a computer storage medium, in which program instructions are stored. When the program instructions are executed, they are used to implement the data processing method described in the first aspect or the second aspect above.

In an embodiment of the present invention, the business approval platform obtains a business approval request submitted by a user through a user terminal, the business approval request carries the user's on-chain address, and obtains summary information of the first production and operation data related to the user from the first node of the blockchain network according to the user's on-chain address, and receives the second production and operation data related to the user sent by the electronic invoice service provider when receiving the notification from the user terminal, and after verifying the second production and operation data using the summary information of the first production and operation data, determines the approval result of the business approval request according to the second production and operation data. The production and operation data provided by the enterprise can be quickly verified to prevent users from tampering with the production and operation data, thereby ensuring the authenticity and legality of the data provided by the user.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG. 1a is a schematic diagram of the architecture of a business approval system provided by an embodiment of the present invention;

FIG1b is a schematic diagram of the structure of a blockchain provided by an embodiment of the present invention;

FIG1c is a schematic diagram of a process of generating a new block provided by an embodiment of the present invention;

FIG2 is a schematic diagram of a data processing method provided by an embodiment of the present invention;

FIG3 is a schematic diagram of another data processing method provided by an embodiment of the present invention;

FIG4 is a schematic diagram of the structure of a data processing device provided by an embodiment of the present invention;

5 is a schematic diagram of the structure of another data processing device provided by an embodiment of the present invention;

6 is a schematic diagram of the structure of a server provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of the structure of a node device provided by an embodiment of the present invention.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In response to the current problems of enterprises creating false cash flow, forging sales records, and using fake invoices to cause bad credit, and being unable to guarantee the authenticity and legality of the data used for credit investigation, the embodiments of the present invention provide a data processing method that can quickly verify the production and operation data provided by the enterprise through blockchain electronic invoices, ensure the authenticity and legality of the data provided by the enterprise, and reduce the risk during business approval.

Please refer to FIG. 1a, which is a schematic diagram of the architecture of a business approval system provided by an embodiment of the present invention. The business approval system includes a blockchain network 10, a user terminal 102, a business approval platform 103 and an electronic invoice service provider 104, wherein:

The blockchain network 10 refers to a network for sharing data between nodes, and the blockchain network may include multiple nodes 101. Each node 101 can receive input information when performing normal work, and maintain the shared data (i.e., blockchain) in the blockchain network based on the received input information. In order to ensure the information intercommunication within the blockchain network, there can be an information connection between each node, and peer-to-peer (P2P) communication can be achieved between any two nodes, and P2P communication can be performed specifically through a wired communication link or a wireless communication link. For example, when any node in the blockchain network receives input information, other nodes obtain the input information according to the consensus algorithm, and store the input information as data in the shared data, so that the data stored on all nodes in the blockchain network are consistent.

The user terminal 102, the business approval platform 103 and the electronic invoice service provider 104 can access the blockchain network and communicate with the nodes in the blockchain network, for example, to initiate data acquisition to the nodes, upload transaction data to the blockchain, etc. The user terminal 102 can be a smart phone, a tablet computer, a laptop computer, a desktop computer, a car-mounted smart terminal, etc., and the business approval platform 103 can be a loan platform, a financial institution, etc., which is not limited in the embodiment of the present invention.

It should be noted that the number of nodes shown in FIG. 1a is merely schematic. Any number of nodes may be deployed according to actual needs. The user terminal 102 , the business approval platform 103 , and the electronic invoice service provider 104 may communicate with the same node in the blockchain network, or may communicate with different nodes in the blockchain network respectively.

Among them, for each node in the blockchain network, there is a node identifier corresponding to it, and each node in the blockchain network can store the node identifiers of other nodes in the blockchain network, so that the generated blocks can be broadcast to other nodes in the blockchain network according to the node identifiers of other nodes. Each node can maintain a node identifier list as shown in the following table, and the node name and node identifier are stored in the node identifier list accordingly. Among them, the node identifier can be an Internet Protocol (IP) address and any other information that can be used to identify the node. The table only uses the IP address as an example for illustration.

Node Name Node ID Node 1 117.114.151.174 Node 2 117.116.189.145 … … Node N 119.123.789.258

Among them, each node in the blockchain network stores an identical blockchain. The blockchain consists of multiple blocks. See Figure 1b. The blockchain consists of multiple blocks. The genesis block includes a block header and a block body. The block header stores input information feature values, version numbers, timestamps, and difficulty values, and the block body stores input information. The next block of the genesis block uses the genesis block as the parent block. The next block also includes a block header and a block body. The block header stores the input information feature values of the current block, the block header feature values, version numbers, timestamps, and difficulty values of the parent block, and so on. The block data stored in each block in the blockchain is associated with the block data stored in the parent block, ensuring the security of the input information in the block.

Among them, when generating each block in the blockchain, see Figure 1c. When the node where the blockchain is located receives the input information, it verifies the input information. After completing the verification, it stores the input information in the memory pool and updates the hash tree used to record the input information. After that, the update timestamp is updated to the time when the input information is received, and different random numbers are tried, and the eigenvalue calculation is performed multiple times, so that the calculated eigenvalue can satisfy the following formula:

SHA256(SHA256(version+prev_hash+merkle_root+ntime+nbits+x))<TARGET

Among them, SHA256 is the eigenvalue algorithm used to calculate the eigenvalue; version (version number) is the version information of the relevant block protocol in the blockchain; prev_hash is the block header eigenvalue of the parent block of the current block; merkle_root is the eigenvalue of the input information; ntime is the update time of the update timestamp; nbits is the current difficulty, which is a fixed value within a period of time and is determined again after exceeding the fixed time period; x is a random number; TARGET is the eigenvalue threshold, which can be determined based on nbits.

In this way, when the random number that satisfies the above formula is calculated, the information can be stored accordingly, the block header and block body can be generated, and the current block can be obtained. Subsequently, the node where the blockchain is located sends the newly generated block to other nodes in the blockchain network according to the node identification of other nodes in the blockchain network. Other nodes verify the newly generated block and add the newly generated block to the blockchain stored in them after the verification is completed.

In some feasible implementations, a node 101 of the blockchain network can receive a data acquisition request sent by the business approval platform 103, the data acquisition request carries the user's on-chain address, and queries the summary information of the first production and operation data related to the user from the blockchain according to the user's on-chain address. Node 101 sends the summary information of the first production and operation data to the business approval platform 103, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider 104, and after the verification is passed, determines the approval result of the business approval request submitted by the user according to the second production and operation data, and can quickly verify the production and operation data provided by the enterprise, thereby ensuring the authenticity and legality of the production and operation data provided by the enterprise, and significantly reducing the risk during business approval.

In some feasible implementations, a node 101 of the blockchain network can broadcast the business approval results and the records of the business approval platform 103 viewing the production and operation data of the user terminal 102 to other nodes in the blockchain network. After the other nodes have passed consensus verification on the business approval results and the records of the business approval platform 103 viewing the production and operation data of the user terminal 102, the node 101 writes the business approval results into the block, so that the business approval results and the records of the business approval platform 103 viewing the production and operation data of the user terminal 102 can be uploaded to the chain, effectively preventing tampering and ensuring the validity and traceability of the business approval results.

The implementation details of the technical solution of the embodiment of the present invention are described in detail below:

Please refer to FIG. 2, which is a flow chart of a data processing method provided by the business approval system shown in FIG. 1a according to an embodiment of the present invention. The data processing method according to the embodiment of the present invention is mainly described from the perspective of the business approval platform. The data processing method is applied to the business approval platform, which may specifically be a loan platform, a financial institution, etc. The data processing method includes the following steps:

201. Obtain a service approval request submitted by a user through a user terminal, where the service approval request carries the on-chain address of the user.

The business approval request may specifically be a loan request.

Specifically, the business approval platform obtains the on-chain address of the user from the business approval request submitted by the user terminal, and the on-chain address includes summary information of the public key corresponding to the user terminal.

202. Obtain summary information of first production and operation data related to the user from a first node of the blockchain network according to the on-chain address of the user.

Specifically, the first production and operation data includes one or more of the user's operating cost expenditure, sales revenue and bill information. The bill information may refer to the blockchain electronic invoice issued during the production and operation process. In order to ensure the privacy of transactions on the blockchain, the on-chain data provides a blurred hash value (i.e., summary information) and does not provide the specific transaction object and identity. Therefore, the business approval platform obtains the summary information of the user's first production and operation data from the first node of the blockchain network through the on-chain address provided by the user.

In some feasible implementations, the specific implementation method of the business approval platform obtaining summary information of the first production and operation data related to the user from the first node of the blockchain network according to the user's on-chain address is: sending a data acquisition request to the first node of the blockchain network, the data acquisition request carries the user's on-chain address, and receiving the summary information of the first production and operation data related to the user sent by the first node, the summary information of the first production and operation data is obtained by the first node from the blockchain according to the user's on-chain address.

203. Receive second production and operation data related to the user sent by the electronic invoice service provider when receiving a notification from the user terminal.

Specifically, the user sends a notification request to the electronic invoice service provider through the user terminal. After receiving the notification request, the electronic invoice service provider sends the second production and operation data related to the user to the business approval platform. That is, the business approval platform receives the second production and operation data related to the user sent by the electronic invoice service provider. The above-mentioned second production and operation data includes the user's transaction amount, number of transactions, time, refund and other data.

204. After the second production and operation data is verified by using the summary information of the first production and operation data, the approval result of the business approval request is determined according to the second production and operation data.

Specifically, the business approval platform uses the summary information of the first production data and the summary information of the second production and operation data to verify, and then determines the approval result of the business approval request provided by the user based on the second production and operation data. The approval result includes information such as whether to issue a loan and the amount of loan granted.

In some feasible implementations, the specific implementation method of verifying the second production and operation data by using the summary information of the first production and operation data is as follows: the business approval platform obtains the summary information of the second production and operation data, matches the summary information of the second production and operation data with the summary information of the first production and operation data, and if the summary information of the second production and operation data matches the summary information of the first production and operation data, it is determined that the second production and operation data has been verified. By verifying the second production and operation data by using the summary information of the first production and operation data of the user, it can be ensured that the production and operation data provided by the enterprise is verified, thereby ensuring the authenticity and legality of the production and operation data provided by the enterprise.

It should be noted that the "match" here refers to the consistency of summary information.

For example, a financial institution (corresponding to the above-mentioned business approval platform) receives a loan request from an enterprise (corresponding to the above-mentioned business approval request), which includes the on-chain address of the enterprise. The financial institution obtains summary information of the first production and operation data related to the enterprise from the first node of the blockchain network through the on-chain address, where the first production and operation data includes operating cost expenditure, sales revenue and bill information. At the same time, the financial institution also receives the second production and operation data about the enterprise sent by the electronic invoice service provider, and the second production and operation data includes the user's transaction amount, number of transactions, time, refund and other data. Then the financial institution compares the first production and operation data summary information with the second production and operation data summary information. If the summary information corresponding to the two data is consistent, the loan is approved.

In some feasible implementations, after determining the approval result of the business approval request according to the second production and operation data, the approval result is sent to the second node of the blockchain network so that the second node writes the approval result into the blockchain. The specific implementation method is as follows: the business approval platform sends the approval result to the second node of the blockchain network and checks the production and operation data behavior of the enterprise. The node verifies the approval result. After the verification is completed, the approval result is stored in the memory pool and the hash tree used to record the input information is updated; then, the update timestamp is updated to the time when the approval result is received, and different random numbers are tried, and the characteristic value calculation is performed multiple times. The random number that meets the conditions is calculated, and the information can be stored accordingly, and the block header and block body are generated to obtain the block containing the approval result. Subsequently, the node where the blockchain is located sends the newly generated block containing the approval result to other nodes in the blockchain network where it is located according to the node identification of other nodes in the blockchain network, and other nodes verify the approval result block. If the verification passes, the approval result block is added to the blockchain stored therein. By uploading the approval results to the blockchain, data tampering can be prevented, ensuring the validity and traceability of the approval results. At the same time, the lending behavior will also be put on the chain to prevent a company from applying for multiple loans at the same time.

It should be noted that the first node and the second node of the above blockchain network can be the same node, different nodes, or multiple nodes. At the same time, the present invention not only performs chain operations on the approval results, but also includes chain operations on the behavior of viewing enterprise-related data on the business approval platform. The specific chain process, such as the chain process for approval results, will not be repeated here.

In an embodiment of the present invention, the business approval platform obtains a business approval request submitted by a user through a user terminal, the business approval request carries the user's on-chain address, and then obtains summary information of the first production and operation data related to the user from the first node of the blockchain network according to the user's on-chain address, and simultaneously receives the second production and operation data related to the user sent by the electronic invoice service provider when receiving the notification of the user terminal, and after verifying the second production and operation data using the summary information of the first production and operation data, determines the approval result of the business approval request according to the second production and operation data. The production and operation data provided by the enterprise can be quickly verified to ensure the authenticity and legality of the production and operation data provided by the enterprise, and reduce the risk during business approval.

Please refer to FIG3, which is a flow chart of another data processing method provided by the business approval system shown in FIG1a according to an embodiment of the present invention. The data processing method according to the embodiment of the present invention is mainly described from the blockchain network side. The data processing method is applied to the blockchain network, and the blockchain network includes multiple nodes. The data processing method includes the following steps:

301. Receive a data acquisition request sent by the business approval platform, where the data acquisition request carries the user's on-chain address.

302. Query summary information of first production and operation data related to the user from the blockchain according to the on-chain address of the user.

In some feasible implementations, the nodes of the blockchain network obtain the public key and digital signature corresponding to the user terminal, wherein the digital signature is obtained by encrypting the private key corresponding to the public key. The blockchain node uses the public key to decrypt the address on the chain to obtain the hash value (i.e., summary information), and verifies whether the digital signature is valid. If the digital signature is valid, the node queries the summary information of the first production and operation data related to the user from the blockchain. The digital signature confirmation is issued by the sender's signature, and encryption is to ensure the confidentiality of the data.

For example, when a blockchain node receives a data acquisition request from a financial institution, it uses the on-chain address of the enterprise in the data acquisition request to obtain the enterprise's corresponding public key and digital signature, then uses the public key to decrypt it, obtains summary information, and then verifies whether the digital signature is valid. If the digital signature is valid, the node queries the blockchain for summary information of the first production and operation data related to the enterprise.

303. Send summary information of the first production and operation data to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determine the approval result of the business approval request submitted by the user according to the second production and operation data.

Specifically, the node sends summary information of the first production and operation data obtained according to the above-mentioned user chain address to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determines the approval result of the business approval request submitted by the user based on the second production and operation data.

In the embodiment of the present invention, the blockchain node queries the summary information of the first production and operation data related to the user from the blockchain according to the user's on-chain address, and sends the summary information of the first production and operation data to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, the approval result of the business approval request submitted by the user is determined according to the second production and operation data. In this way, the production and operation data of the user can be obtained quickly and accurately, thereby ensuring the authenticity and legality of the production and operation data provided by the enterprise.

Please refer to Figure 4, which is a schematic diagram of the structure of a data processing device provided in an embodiment of the present invention. The data processing device described in this embodiment is applied to a business approval platform, and includes:

An acquisition unit 401 is used to acquire a service approval request submitted by a user through a user terminal, wherein the service approval request carries an on-chain address of the user;

The acquisition unit 401 is further configured to acquire summary information of first production and operation data related to the user from a first node of the blockchain network according to the on-chain address of the user;

The receiving unit 402 is used to receive the second production and operation data related to the user sent by the electronic invoice service provider when receiving the notification from the user terminal;

The determination unit 403 is used to determine the approval result of the business approval request according to the second production and operation data after the second production and operation data is verified by using the summary information of the first production and operation data.

Optionally, the first production and operation data includes one or more of the user's operating cost expenditure, sales revenue and bill information.

Optionally, the device further includes: a matching unit 404, wherein:

The acquisition unit 401 is further used to acquire summary information of the second production and operation data;

The matching unit 404 is used to match the summary information of the second production and operation data with the summary information of the first production and operation data;

The determining unit 403 is configured to determine that verification of the second production and operation data has passed if the summary information of the second production and operation data matches the summary information of the first production and operation data.

Optionally, the device further includes: a sending unit 405, wherein:

The sending unit 405 is used to send a data acquisition request to the first node of the blockchain network, where the data acquisition request carries the on-chain address of the user;

The receiving unit is used to receive summary information of first production and operation data related to the user sent by the first node, where the summary information of the first production and operation data is obtained by the first node from querying the blockchain according to the on-chain address of the user.

Optionally, the sending unit 405 is specifically configured to:

Send the approval result to a second node of the blockchain network so that the second node writes the approval result into the blockchain.

Optionally, the user's on-chain address includes summary information of the public key corresponding to the user terminal.

In this embodiment, the acquisition unit 401 acquires the business approval request submitted by the user through the user terminal, and the business approval request carries the on-chain address of the user, and then acquires the summary information of the first production and operation data related to the user from the first node of the blockchain network according to the on-chain address of the user, and at the same time, the receiving unit 402 receives the second production and operation data related to the user sent by the electronic invoice service provider when receiving the notification of the user terminal, and the determination unit 403 determines the approval result of the business approval request according to the second production and operation data after verifying the second production and operation data by using the summary information of the first production and operation data. The production and operation data provided by the enterprise can be quickly verified to ensure the authenticity and legality of the production and operation data provided by the enterprise, and reduce the risk of business approval.

Please refer to Figure 5, which is a schematic diagram of the structure of another data processing device provided in an embodiment of the present invention. The data processing device described in this embodiment is applied to a blockchain network, and the blockchain network includes multiple nodes, including:

A receiving unit 501 is used to receive a data acquisition request sent by a business approval platform, wherein the data acquisition request carries the user's on-chain address;

A query unit 502, configured to query summary information of first production and operation data related to the user from the blockchain according to the on-chain address of the user;

The sending unit 503 is used to send the summary information of the first production and operation data to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determine the approval result of the business approval request submitted by the user according to the second production and operation data.

It can be understood that the functions of each unit of the data processing device of this embodiment can be specifically implemented according to the method in the above method embodiment, and its specific implementation process can refer to the relevant description of the above method embodiment, which will not be repeated here.

Please refer to Figure 6, which is a schematic diagram of the structure of a server provided in an embodiment of the present invention. The server described in this embodiment is applied to a business approval platform, and includes: a processor 601, a network interface 602, and a memory 603. Among them, the processor 601, the network interface 602, and the memory 603 can be connected via a bus or other means. The embodiment of the present invention takes the connection via a bus as an example.

Among them, the processor 601 (or central processing unit (CPU)) is the computing core and control core of the server. The network interface 602 may optionally include a standard wired interface, a wireless interface (such as WI-FI, a mobile communication interface, etc.), which is controlled by the processor 601 for sending and receiving data. The memory 603 (Memory) is a memory device of the server, which is used to store programs and data. It can be understood that the memory 603 here can be a high-speed RAM memory, or a non-volatile memory (non-volatile memory), such as at least one disk storage; optionally, it can also be at least one storage device located away from the aforementioned processor 601. The memory 603 provides a storage space, which stores the operating system and executable program code of the server, which may include but is not limited to: Windows system (an operating system), Linux (an operating system) system, etc., and the present invention is not limited to this.

In the embodiment of the present invention, the processor 601 performs the following operations by running the executable program code in the memory 603:

Obtaining a service approval request submitted by a user through a user terminal, wherein the service approval request carries the on-chain address of the user;

Obtain summary information of first production and operation data related to the user from a first node of the blockchain network according to the on-chain address of the user;

Receiving second production and operation data related to the user sent by the electronic invoice service provider when receiving a notification from the user terminal;

After the second production and operation data is verified by using the summary information of the first production and operation data, the approval result of the business approval request is determined according to the second production and operation data.

Optionally, one or more of the user's operating cost expenditure, sales revenue and bill information.

Optionally, the processor 601 is configured to:

Obtain summary information of the second production and operation data;

matching the summary information of the second production and operation data with the summary information of the first production and operation data;

If the summary information of the second production and operation data matches the summary information of the first production and operation data, it is determined that the verification of the second production and operation data has passed.

Optionally, the specific manner in which the processor 601 obtains summary information of the first production and operation data related to the user from the first node of the blockchain network according to the on-chain address of the user is:

Sending a data acquisition request to a first node of the blockchain network, wherein the data acquisition request carries the on-chain address of the user;

Receive summary information of first production and operation data related to the user sent by the first node, where the summary information of the first production and operation data is obtained by the first node from querying the blockchain according to the on-chain address of the user.

Optionally, the processor 601 is used to send the approval result to a second node of the blockchain network, so that the second node writes the approval result into the blockchain.

Optionally, the user's on-chain address includes summary information of the public key corresponding to the user terminal.

In a specific implementation, the processor 601, network interface 602 and memory 603 described in the embodiment of the present invention can execute the implementation method described in the flow of a data processing method provided in Figure 2 of the embodiment of the present invention, and can also execute the implementation method described in a data processing device provided in Figure 4 of the embodiment of the present invention, which will not be repeated here.

Please refer to Figure 7, which is a schematic diagram of the structure of a node device provided in an embodiment of the present invention. The node device described in this embodiment includes: a processor 701, a network interface 702, and a memory 703. The processor 701, the network interface 702, and the memory 703 may be connected via a bus or other means, and the embodiment of the present invention takes the connection via a bus as an example.

Among them, the processor 701 (or central processing unit (CPU)) is the computing core and control core of the node device. The network interface 702 may optionally include a standard wired interface, a wireless interface (such as WI-FI, a mobile communication interface, etc.), which is controlled by the processor 701 for sending and receiving data. The memory 703 (Memory) is a memory device of the node device, which is used to store programs and data. It can be understood that the memory 703 here can be a high-speed RAM memory, or a non-volatile memory (non-volatile memory), such as at least one disk storage; optionally, it can also be at least one storage device located away from the aforementioned processor 701. The memory 703 provides a storage space, which stores the operating system and executable program code of the node device, which may include but is not limited to: Windows system (an operating system), Linux (an operating system) system, etc., and the present invention is not limited to this.

In the embodiment of the present invention, the processor 701 performs the following operations by running the executable program code in the memory 703: receiving a data acquisition request sent by the business approval platform, the data acquisition request carrying the user's on-chain address; querying summary information of the first production and operation data related to the user from the blockchain according to the user's on-chain address;

The summary information of the first production and operation data is sent to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determines the approval result of the business approval request submitted by the user according to the second production and operation data.

In a specific implementation, the processor 701, network interface 702 and memory 703 described in the embodiment of the present invention can execute the implementation method described in the flow of a data processing method provided in Figure 3 of the embodiment of the present invention, and can also execute the implementation method described in a data processing device provided in Figure 5 of the embodiment of the present invention, which will not be repeated here.

A computer-readable storage medium is also provided in an embodiment of the present invention. The computer-readable storage medium stores a computer program. The computer program includes program instructions. When the program instructions are executed by a processor, the steps performed in the above data processing embodiment can be executed.

A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims (8)

1. A data processing method, characterized in that it is applied to a business approval platform in a business approval system, wherein the business approval system includes a blockchain network, a user terminal, the business approval platform, and an electronic invoice service provider, and the method includes: Obtaining a service approval request submitted by the user through the user terminal, wherein the service approval request carries the on-chain address of the user; wherein the on-chain address of the user includes summary information of the public key corresponding to the user terminal; Obtain summary information of first production and operation data related to the user from the first node of the blockchain network according to the on-chain address of the user; wherein the first production and operation data includes the operating cost expenditure and sales revenue of the user; Receiving second production and operation data related to the user sent by the electronic invoice service provider when receiving a notification from the user terminal; wherein the second production and operation data includes the transaction amount, number of transactions, time and refund of the user; After the second production and operation data is verified using the summary information of the first production and operation data, the approval result of the business approval request is determined based on the second production and operation data; wherein, the verification of the second production and operation data is passed, including: the summary information of the second production and operation data matches the summary information of the first production and operation data. 2. The method according to claim 1, characterized in that after the second production and operation data is verified by using the summary information of the first production and operation data, before determining the approval result of the business approval request according to the second production and operation data, the method further comprises: Obtain summary information of the second production and operation data; matching the summary information of the second production and operation data with the summary information of the first production and operation data; If the summary information of the second production and operation data matches the summary information of the first production and operation data, it is determined that the verification of the second production and operation data has passed. 3. The method according to claim 1, characterized in that the step of obtaining summary information of first production and operation data related to the user from the first node of the blockchain network according to the on-chain address of the user comprises: Sending a data acquisition request to a first node of the blockchain network, wherein the data acquisition request carries the on-chain address of the user; Receive summary information of first production and operation data related to the user sent by the first node, where the summary information of the first production and operation data is obtained by the first node from querying the blockchain according to the on-chain address of the user. 4. The method according to claim 1, characterized in that after determining the approval result of the business approval request according to the second production and operation data, the method further comprises: Send the approval result to a second node of the blockchain network so that the second node writes the approval result into the blockchain. 5. A data processing method, characterized in that it is applied to a blockchain network in a business approval system, the blockchain network includes multiple nodes, the business approval system includes the blockchain network, a user terminal, a business approval platform and an electronic invoice service provider, and the method includes: Receive a data acquisition request sent by the business approval platform, wherein the data acquisition request carries the user's on-chain address; wherein the user's on-chain address includes summary information of the public key corresponding to the user terminal; According to the on-chain address of the user, query summary information of first production and operation data related to the user from the blockchain; wherein the first production and operation data includes the operating cost expenditure and sales revenue of the user; Send summary information of the first production and operation data to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, determine the approval result of the business approval request submitted by the user according to the second production and operation data; wherein, the second production and operation data includes the transaction amount, number of transactions, time and refund of the user; the verification is passed, including: the summary information of the second production and operation data matches the summary information of the first production and operation data. 6. A data processing device, characterized in that it is applied to a business approval platform in a business approval system, wherein the business approval system includes a blockchain network, a user terminal, the business approval platform, and an electronic invoice service provider, and the device includes: An acquisition unit, configured to acquire a service approval request submitted by a user through the user terminal, wherein the service approval request carries the on-chain address of the user; wherein the on-chain address of the user includes summary information of the public key corresponding to the user terminal; The acquisition unit is further used to acquire summary information of first production and operation data related to the user from the first node of the blockchain network according to the on-chain address of the user; wherein the first production and operation data includes the operating cost expenditure and sales revenue of the user; A receiving unit, configured to receive second production and operation data related to the user sent by the electronic invoice service provider when receiving a notification from the user terminal; wherein the second production and operation data includes the transaction amount, number of transactions, time and refund of the user; A determination unit is used to determine the approval result of the business approval request based on the second production and operation data after the second production and operation data is verified by using the summary information of the first production and operation data; wherein, the verification of the second production and operation data is passed, including: the summary information of the second production and operation data matches the summary information of the first production and operation data. 7. A data processing device, characterized in that it is applied to a blockchain network in a business approval system, the blockchain network includes multiple nodes, the business approval system includes the blockchain network, a user terminal, a business approval platform and an electronic invoice service provider, and the device includes: A receiving unit, configured to receive a data acquisition request sent by the business approval platform, wherein the data acquisition request carries the user's on-chain address; wherein the user's on-chain address includes summary information of the public key corresponding to the user terminal; A query unit, configured to query summary information of first production and operation data related to the user from the blockchain according to the on-chain address of the user; wherein the first production and operation data includes the operating cost expenditure and sales revenue of the user; A sending unit is used to send summary information of the first production and operation data to the business approval platform, so that the business approval platform uses the summary information of the first production and operation data to verify the second production and operation data provided by the electronic invoice service provider, and after the verification is passed, the business approval platform determines the approval result of the business approval request submitted by the user according to the second production and operation data; wherein, the second production and operation data includes the transaction amount, number of transactions, time and refund of the user; the verification is passed, including: the summary information of the second production and operation data matches the summary information of the first production and operation data. 8. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the method according to any one of claims 1 to 4 or 5.