CN115393082A - A blockchain-based transaction data reconciliation processing method and device - Google Patents

Abstract

The invention provides a transaction data reconciliation processing method and device based on a block chain, relates to the technical field of the block chain, and can be used in the financial field or other technical fields. The method comprises the following steps: acquiring a business account checking file and a link transaction statement file; determining a target service account checking file and a target link transaction statement file corresponding to the same transaction according to the pre-configuration information; the target business reconciliation file and the target link transaction list file respectively comprise hash values of the attributes of the checking elements which are arranged according to a preset sequence; and comparing every two hash values respectively corresponding to the target business reconciliation file and the target chain transaction list file one by one in sequence according to the preset sequence, and determining a transaction data reconciliation processing result according to a comparison result. The device performs the above method. The method and the device provided by the embodiment of the invention can improve the accuracy and the applicability of the account checking of the transaction data.

Description

A blockchain-based transaction data reconciliation processing method and device

technical field

The present invention relates to the technical field of blockchain, in particular to a transaction data reconciliation processing method and device based on blockchain.

Background technique

Traditional reconciliation refers to the inspection and verification of relevant data in the account book in order to ensure the correctness and reliability of the account book records in accounting, and the confirmation of transactions within a certain period by both parties, usually on the next day. The statement is for the checking party to download.

All cross-application data interactions should theoretically be reconciled. Reconciliation can be divided into information flow reconciliation and capital flow reconciliation. Information flow reconciliation is generally used for reconciliation between systems, such as reconciliation between the payment data of the payment system and the business data of the business system, to ensure the consistency of capital transactions and business transactions. Fund flow reconciliation refers to the fund transaction reconciliation between the payment system and the bank or third-party payment system.

During the interaction between the blockchain and the business system, it is necessary to reconcile the business system and the transaction data stored on the blockchain. Based on the high technical threshold of the blockchain itself, developers are required to have high professional skills, which limits the use of developers to a certain extent. Therefore, how to improve the accuracy and applicability of transaction data reconciliation has become a technology that needs to be solved urgently. question.

Contents of the invention

In view of the problems in the prior art, the embodiments of the present invention provide a transaction data reconciliation processing method and device based on blockchain, which can at least partly solve the problems in the prior art.

On the one hand, the present invention proposes a transaction data reconciliation processing method based on blockchain, including:

Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data;

Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value;

Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result.

Wherein, said determining the transaction data reconciliation processing result according to the comparison result includes:

If it is determined that the comparison results of pairwise comparisons of all hash values are the same, then it is determined that the transaction data reconciliation processing results are consistent;

If it is determined that there is at least one group of hash values whose pairwise comparison results are not the same, it is determined that the transaction data reconciliation processing result is inconsistent.

Wherein, the pre-configuration information includes a transaction number; correspondingly, the determination of the target business reconciliation file and the transaction list file on the target chain corresponding to the same transaction according to the pre-configuration information includes:

According to the transaction number, the target business reconciliation file and the transaction list file on the target chain corresponding to the same transaction are determined.

Wherein, before the step of determining the target business reconciliation file corresponding to the same transaction and the transaction list file on the target chain according to the pre-configuration information, the transaction data reconciliation processing method based on the block chain also includes:

Perform transaction error data detection on the business reconciliation file and the on-chain transaction list file.

Wherein, the detection of transaction error data on the business reconciliation file and the on-chain transaction list file includes:

Obtain the intersection data between the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; the intersection data is the data with the same field name in the business reconciliation file corresponding to the same transaction and the transaction list file on the chain;

Comparing the field content information of all the same fields in the intersection data, if it is determined that all the comparison results are consistent, then it is determined that there is no transaction error data in the intersection data.

Wherein, the transaction data reconciliation processing method based on the block chain also includes:

If it is determined that there is at least one group of inconsistent comparison results, then it is determined that there is first type of transaction error data in the intersection data; the first type of transaction error data is transaction error data whose content of comparison information is inconsistent.

Wherein, the detection of transaction error data on the business reconciliation file and the on-chain transaction list file includes:

Obtain the unilateral data between the business reconciliation file and the on-chain transaction list file; the unilateral data exists in the business reconciliation file and does not exist in the on-chain transaction list file The data corresponding to the field name of ; and the data corresponding to the field name that does not exist in the business reconciliation file and exists in the on-chain transaction list file;

It is determined that the second type of transaction error data exists in the unilateral data; the second type of transaction error data is transaction error data with missing fields.

On the one hand, the present invention proposes a transaction data reconciliation processing device based on blockchain, including:

An acquisition unit, configured to acquire a business reconciliation file and an on-chain transaction list file; the on-chain transaction list file includes transaction data and world state data in the block;

A determining unit, configured to determine a target business reconciliation file and a target on-chain transaction list file corresponding to the same transaction according to pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include The hash value of the check element attribute;

The reconciliation unit is used to compare the hash values corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset order, and determine the transaction data pair according to the comparison result. Account processing results.

In another aspect, an embodiment of the present invention provides an electronic device, including: a processor, a memory, and a bus, wherein,

The processor and the memory communicate with each other through the bus;

The memory stores program instructions executable by the processor, and the processor calls the program instructions to perform the following methods:

Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data;

Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value;

Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result.

An embodiment of the present invention provides a non-transitory computer-readable storage medium, including:

The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to perform the following method:

Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data;

Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value;

Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result.

The blockchain-based transaction data reconciliation processing method and device provided by the embodiments of the present invention obtain business reconciliation files and on-chain transaction list files; the on-chain transaction list files include transaction data and world state data in blocks ; Determine the target business reconciliation file and target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include check element attributes arranged in a preset order hash value; according to the preset sequence, compare the hash values corresponding to the target business reconciliation file and the target chain transaction list file one by one, and determine the transaction data reconciliation according to the comparison result The processing results can improve the accuracy and applicability of transaction data reconciliation.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work. In the attached picture:

Fig. 1 is a schematic flowchart of a transaction data reconciliation processing method based on blockchain provided by an embodiment of the present invention.

Fig. 2 is a schematic diagram illustrating incremental data and stock data transmission provided by an embodiment of the present invention.

Fig. 3 is a schematic diagram of signaling interaction of a blockchain-based transaction data reconciliation processing method provided by an embodiment of the present invention.

Fig. 4 is an explanatory schematic diagram of a ledger provided by an embodiment of the present invention.

Fig. 5 is an explanatory schematic diagram of a ledger provided by another embodiment of the present invention.

FIG. 6 is a schematic diagram illustrating node synchronization provided by an embodiment of the present invention.

Fig. 7 is a schematic illustration of a ledger provided by another embodiment of the present invention.

Fig. 8 is a schematic diagram of signaling interaction of a blockchain-based transaction data reconciliation processing method provided by another embodiment of the present invention.

Fig. 9 is a schematic diagram illustrating transaction error data detection provided by an embodiment of the present invention.

Fig. 10 is a schematic flowchart of a transaction data reconciliation processing method based on blockchain provided by another embodiment of the present invention.

Fig. 11 is a schematic flowchart of a transaction data reconciliation processing method based on blockchain provided by another embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a block chain-based transaction data reconciliation processing device provided by an embodiment of the present invention.

FIG. 13 is a schematic diagram of the physical structure of the electronic device provided by the embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

The related terms of the embodiments of the present invention are described as follows:

Reconciliation basis and standards:

First of all, the business system needs to clarify the basis and standards for reconciliation. Such as the issuance, freezing, transfer-in, and transfer-out of digital credit certificates, the basis for reconciliation is the instruction number. Reconciliation standards can be set as commitments to users. For example: the issuance of digital credit certificates, if the result to the user is failure, but the data credit certificates are successfully issued on the chain, the digital certificates on the chain need to be cancelled. If the result to the user is success, but not on the chain, it needs to be reissued. During data verification, if the results of each link are inconsistent, the final result needs to be aligned with the user's commitment.

Reconciliation timing:

It is divided into online reconciliation and day-end reconciliation. Online reconciliation is divided into real-time reconciliation and quasi-real-time reconciliation.

Real-time reconciliation can be guaranteed by strong consistency through timeout retry and other methods.

Quasi-real-time reconciliation is usually implemented asynchronously. If the order fails to return, a task will be initiated asynchronously to refund. If the refund is unsuccessful, multiple retries will be made to replenish the order.

Day-end reconciliation is generally realized through scheduled tasks, and there are many methods of batch reconciliation, and various business applications can be used freely.

Reconciliation method:

One-way reconciliation: Generally, third-party payment institutions or bank statements are used to reconcile with its own system to prevent the problem of missing orders;

Two-way reconciliation: Two-way checking of the flow between two applications, such as the order and financial system, not only to ensure that the financial system has a successful record of payment, but also the order system is successful; it is also necessary to ensure that the order system records successful records, and the financial system is also successful .

The business system can use one-way or two-way reconciliation to conduct account reconciliation according to the actual situation.

Fig. 1 is a schematic flow diagram of a transaction data reconciliation processing method based on blockchain provided by an embodiment of the present invention. As shown in Fig. 1, the transaction data reconciliation processing method based on blockchain provided by an embodiment of the present invention includes :

Step S1: Obtain the business reconciliation file and the on-chain transaction list file; the on-chain transaction list file includes the transaction data in the block and the world state data.

Step S2: Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include checks arranged in a preset order The hash value of the feature attribute.

Step S3: Compare the hash values corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset order, and determine the transaction data reconciliation processing result according to the comparison result .

In the above step S1, the device obtains the business reconciliation file and the on-chain transaction list file; the on-chain transaction list file includes transaction data and world state data in the block. The apparatus may be a computer device for executing the method, for example, may include a server, specifically, a blockchain reconciliation node server in the blockchain server, and the like. It should be noted that the acquisition and analysis of data related to the embodiment of the present invention is authorized by the user. As shown in Figure 2, in terms of verification, it supports the verification of daily incremental detailed data and regular asset information verification. Incremental checks can locate problem data in a timely manner, and regular checks can discover unknown potential problems.

As shown in Figure 3, a brief description of the batch reconciliation process:

(1) Blockchain: Two data export services are added. One is to export the transaction data in the block generated on the day of T day to a file and send it to the blockchain reconciliation node. The second is to regularly export world state data according to business needs.

(2) Business application: The business application generates the business reconciliation file of T day at the end of the day, and transfers the file to the blockchain reconciliation node through the blockchain storage node agent, or FTPs the file to the reconciliation node.

(3) Blockchain: The blockchain adds data reconciliation nodes. According to the batch job configuration table, the reconciliation node regularly obtains the corresponding business reconciliation file and on-chain transaction list file from the blockchain storage node, and imports them into the business order table and on-chain transaction table respectively to start the reconciliation process.

(4) Process the verification process of the core.

(5) Return the reconciliation result file to the business application side.

illustrate:

1. Business application reconciliation file name specification: The business application names the generated reconciliation file according to a unified specification, which must include information such as organization id, table name, and date.

2. Data transmission service scheduling Provide optional scheduling of data transmission component services, such as ftp, or an agent specially used for file transmission. Alliance institutions can complete the storage and transmission of data by themselves according to actual needs.

After obtaining the business reconciliation file and the on-chain transaction list file, the on-chain and off-chain block data synchronization can be performed:

As shown in Figure 4, a brief description of the ledger is as follows:

The ledger (ledger) consists of two main parts, one is the blockchain (Block chain) and the other is the world state (World State). The blockchain is a series of connected account pages (block Block) in the ledger that are used to record transactions. The world state is a key-value database used to store transaction execution state. That is, the blockchain records the history of transactions, and the state of the world records the current status of transactions. The ledger records the general ledger of all node transactions, distributed and stored in each node, and the ledger seen by each node is complete, true, and exactly the same.

As shown in Figure 5, the account book is described in detail as follows:

A block consists of a block header (Block Header) and a transaction set (Block Transaction). The block header contains: the hash value and block number of the previous block, etc. The transaction set includes information such as the request parameters of each transaction, the read and write set after the contract is executed, and the return value of the contract.

Since the blockchain records the history of transactions, the history of transactions can be extracted from the block. Considering the versatility of reconciliation, it is considered to realize flexible data reconciliation by synchronizing the data of the entire block to the off-chain. Blocks can be synchronized by listening and other methods.

The stock method gets all the blocks of the current peer node. For incremental blocks, the incrementally generated blocks are obtained by registering a "block listener". In order to prevent the leakage of monitoring caused by the collapse of the synchronization node in the incremental mode, the sequence number continuity of the block is checked. As shown in Figure 6, for example, block4, if there is a missing block in the middle, the block information of the missing block number is obtained through the block acquisition interface.

The relevant configuration content of the block synchronization job is shown in Table 1:

Table 1

content item describe Is it required? sync block number Last synced block number Yes working date Today's working day T Yes

Blocks can be generated when they meet one of the following three conditions:

① Generate blocks every few seconds (default 2 seconds);

②Blocks are produced when several transactions are completed;

③When the transaction size reaches the specified size, a block is generated.

It can be seen that a block may contain the data of T and T+1 days. When synchronizing the data of T day, write the transaction of T day into the reconciliation file of T day, when it is detected that the current block contains the data of T+1 day, then write the data of T+1 day into In the reconciliation file on T+1 day. A block contains the data of T day and T+1 day. After the synchronization of the current block is completed, the synchronization of the data of T day is completed.

After the on-chain and off-chain block data is synchronized, the stock data can also be checked, including:

It is aimed at the situation that needs to be checked at the end of the month or by quarter or year. Such data requires the business application side to write relevant data into the world state database in the smart contract. When writing smart contracts, the business system should determine the data structure of the product log to be registered on the chain. The product log must contain the unique business primary key of the transaction, and the primary key is consistent with the unique business primary key of the order information in the business application system. The product log information is recorded on the chain, and the corresponding key value must include the product type and unique business primary key, and the field information that needs to be reconciled is stored in the corresponding record value. The blockchain derives corresponding data from the world state database. Generally speaking, there is a one-to-one relationship between world state data and business data, and there is no situation where there are multiple records in a business primary key.

In this type of job configuration, it is necessary to provide information such as the table name and check field attributes in the world state. As shown in table 2:

Table 2

After checking the stock data, extract the ledger transaction data:

In the transaction set of block data, the unique transaction number (which can be a compound key) is generally included in the endorsement request input parameter of the transaction, and the transaction time is included in the transaction header. The information to be checked may partially exist in the request parameters and partially exist in the execution result read and write concentration.

As shown in Figure 7, in the application system, part of the information in the order table corresponds to the endorsement request information on the chain, and part of it corresponds to the read-write set information of the block, so it is necessary to check the attributes and sources of the job definition check. When extracting transaction information from a block, analyze the transaction data in the block according to the rules defined by the job. If a unique transaction number (which can be a compound key) exists in multiple blocks, select the latest synchronized block transaction to overwrite.

Check job configuration:

In the reconciliation job configuration, provide reconciliation-related information configuration. Contains job organization ID, channel name, unique transaction number, check field attributes and other information, as shown in Table 3:

table 3

As shown in Figure 8, the underlying accounting nodes of the blockchain contain block data and world state data. The business data on the chain writes the transaction information into the bottom layer of the blockchain in the smart contract, and the blockchain synchronizes the blocks at the end of the day, and analyzes the transaction information in the block, and the parsed results are exported to the blockchain transaction log file In , the exported information includes business id, transaction unique id, and transaction hash value. After the file is exported, it is uploaded to the blockchain reconciliation node, and the reconciliation node obtains the file for processing. In addition, the world state database of the blockchain will be updated when the contract is executed. This type of data saves the latest state of business data, and the corresponding data is exported according to the configuration requirements of business operations.

After extracting the ledger transaction data, it also includes:

Perform transaction error data detection on the business reconciliation file and the on-chain transaction list file.

As shown in Figure 9, specifically include:

Obtain the intersection data between the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; the intersection data is the data with the same field name in the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; the field name It can be configured in pre-configured information. For example, the field names in the business reconciliation file include A, B, C, and D, and the field names in the on-chain transaction list file include A, B, D, and E. In the business reconciliation file, A The data a1 in and the data a2 in A in the on-chain transaction list file, as well as the data b1 in B in the business reconciliation file and the data b2 in B in the on-chain transaction list file are the above intersection data. The intersection data corresponds to the common part of the two circles in Figure 9.

Comparing the field content information of all the same fields in the intersection data, if it is determined that all the comparison results are consistent, then it is determined that there is no transaction error data in the intersection data. Referring to the above example, compare a1 with a2, and compare b1 with b2. If the comparison results of a1 and a2 are consistent, and the comparison results of b1 and b2 are consistent, then it is determined that there is no transaction error data in the intersection data. That is, it corresponds to the case where the common parts of the two circles are consistent in FIG. 9 .

If it is determined that there is at least one group of inconsistent comparison results, then it is determined that there is first type of transaction error data in the intersection data; the first type of transaction error data is transaction error data whose content of comparison information is inconsistent.

Referring to the above example, if the comparison results of a1 and a2 are consistent, and the comparison results of b1 and b2 are inconsistent, then it is determined that B is the first type of transaction error data, that is, corresponding to Figure 9, the common part of the two circles is A , the inconsistent part is B.

Obtain the unilateral data between the business reconciliation file and the on-chain transaction list file; the unilateral data exists in the business reconciliation file and does not exist in the on-chain transaction list file The data corresponding to the field name of the business reconciliation file; and the data corresponding to the field name that does not exist in the business reconciliation file and exists in the on-chain transaction list file; referring to the above example, the unilateral data of the business reconciliation file corresponds to C c1 and the unilateral data of the on-chain transaction list file are e2 corresponding to E.

It is determined that the second type of transaction error data exists in the unilateral data; the second type of transaction error data is transaction error data with missing fields. The above c2 (c2 corresponding to the missing field C in the on-chain transaction list file) and e1 (c1 corresponding to the missing field e in the business reconciliation file) are the second type of transaction error data.

For the above-mentioned first type of transaction error data, the following coping strategies can be adopted:

The remote service interface is provided by the business application and configured in the error handling job. The interface includes the order number and transaction data on the chain, and the error processing job of the reconciliation platform calls this interface. When the interface is processed, if the business order is failed and the status on the chain is successful, the status of the update order is successful; if the business order is successful and the transaction on the chain is failed, the status of the update order is failed. The application defines the service interface for updating.

For the above-mentioned second type of transaction error data, the following coping strategies can be adopted:

The complement set on the transaction side of the chain is a long-term error, that is, this part of the data exists on the chain, but it is not found in the successful data set of the business order system. The reason for this part of the error data may be cross-day transactions, the system level of orders dropped orders and so on. This kind of data is placed on one side first, and the reconciliation will be performed on T+1 day.

Complementary set on the business application side, that is, this part of data exists in the business order but does not exist on the chain. The cause of this part of the error may be caused by cross-day transactions. This kind of data is placed on one side first, and the reconciliation will be performed on T+1 day. On T+1 day, there will be long-term transactions on the chain.

Wait until T+1 day, the error processing job will traverse the difference data of the previous few days, if they are consistent, then level; if still not found, the remote service interface can be defined by the business application in the error job definition to make up the order, if the application does not configuration, the error handling is initiated by the application itself.

The error handling job configuration is shown in Table 4:

Table 4

In the above step S2, the device determines the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include Sequentially ordered hashes of attributes of the checked features. Checking element attributes can be understood as information data to be reconciled configured in the pre-configured information according to user needs, and the preset order can be configured in the pre-configured information according to user needs. The attributes of the checking elements may be calculated sequentially according to the above preset order to obtain the hash values respectively corresponding to the attributes of each checking element.

The target business reconciliation file and the target on-chain transaction list file may also include a transaction number, through which the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction can be determined.

As shown in Figure 10, the configuration information flow according to business needs is described as follows:

Considering the variety of different business matching elements, in order to avoid repeated development, the business application determines the properties of the checking elements and configures them in the checking job. When a transaction is initiated, each check attribute and attribute value are recorded in the application system and the relevant request message and read-write set on the chain, and the mapping relationship between the attributes on the chain and the attribute of the application system is configured through the job definition.

When the business party trades on the chain, it initiates the transaction through the smart contract and writes it on the chain. When writing the smart contract, the business system should determine the data structure to be registered on the chain, which must include the unique transaction number of the transaction, and the number is consistent with the The unique transaction number of the order information is the same.

The structure of the reconciliation file (the target business reconciliation file and the transaction list file on the target chain) is shown in Table 5:

table 5

Since the hash is mainly for the hash code in a transaction, the probability of hash collision is relatively low, and a simple and efficient hash algorithm can be constructed to generate the hash value.

When checking, the business party provides the transaction order information file, and the blockchain provides the block transaction file on the chain. The order file and the block transaction table are associated through a unique transaction number, and the hash value corresponding to the same transaction number of the two tables is checked. Is it consistent.

In the above step S3, the device compares the hash values corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset order, and determines the transaction data according to the comparison result Reconciliation processing results. An example is as follows: the hash values arranged in sequence in the target business reconciliation file are recorded as H1, H2...HM; the hash values arranged in sequence in the transaction list file on the target chain are recorded as h1, h2...hM, first H1 and h1 Compare, then compare H2 with h2, and so on, and finally compare HM with hM.

As shown in Figure 11, the determination of the transaction data reconciliation processing result according to the comparison result includes:

If it is determined that the comparison results of pairwise comparisons of all hash values are the same, it is determined that the transaction data reconciliation processing results are consistent; referring to the above example, if the comparison results of pairwise comparisons of H1, H2...HM and h1, h2...hM are the same If they are the same, it is determined that the transaction data reconciliation processing results are consistent.

If it is determined that there is at least one group of hash values whose pairwise comparison results are not the same, it is determined that the transaction data reconciliation processing result is inconsistent. Referring to the above example, if there is at least one group of comparison results among H1, H2...HM and h1, h2...hM that are not the same, it is determined that the transaction data reconciliation processing result is inconsistent.

Embodiments of the present invention have the following beneficial effects:

1. For decentralized applications, provide a complete reconciliation construction solution between the blockchain and the application system. By extracting transaction data from the block and supporting the verification of incremental transaction information, and by extracting transaction data from the world state database to support regular verification of stock assets, the consistency of business systems and transaction data on the chain is finally achieved, avoiding network , system bugs and other issues lead to data inconsistencies between the two parties.

2. Versatility: The reconciliation file data generated on the chain stores the hash value of the unique id of the transaction and the corresponding verification elements. When the business system generates the reconciliation business file, it generates the verification of the transaction according to the same hash algorithm The hash value of the elements, so as to shield the various consistent reconciliation logics of different business systems, completely decoupled from the business logic, and realize a general solution.

3. Security: The reconciliation file data generated on the chain stores the unique ID of the transaction and the hash value of the corresponding verification elements, which does not involve the leakage of sensitive business information and ensures the security of business data.

4. Small amount of network transmission: Since the files of both sides of the reconciliation only contain the transaction id and hash value, the size of the traditional reconciliation file is greatly reduced, and the network transmission traffic is reduced.

5. The hash algorithm used can support a certain degree of hash collision. When there are multiple input values corresponding to the same hash code, the attacker cannot determine which input value shall prevail, thereby protecting the security of business information .

6. In the transaction error processing operation, it supports the transaction replenishment order processing. The verification information of the transaction is stored in the blockchain. When there is an inconsistency in the verification, the business system can call the relevant blockchain query interface to obtain the transaction information on the blockchain in the corresponding replenishment service.

The transaction data reconciliation processing method based on the block chain provided by the embodiment of the present invention obtains the business reconciliation file and the transaction list file on the chain; the transaction list file on the chain includes the transaction data in the block and the world state data; according to The pre-configuration information determines the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction; the target business reconciliation file and the target on-chain transaction list file respectively include hashes of attributes of the verification elements arranged in a preset order. Greek value: compare the hash values corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset order, and determine the transaction data reconciliation processing result according to the comparison result , can improve the accuracy and applicability of transaction data reconciliation.

Further, the determining the transaction data reconciliation processing result according to the comparison result includes:

If it is determined that the comparison results of pairwise comparisons of all hash values are the same, then it is determined that the transaction data reconciliation processing results are consistent; refer to the above description, and will not repeat them here.

If it is determined that there is at least one group of hash values whose pairwise comparison results are not the same, it is determined that the transaction data reconciliation processing result is inconsistent. Reference may be made to the above description, and details are not repeated here.

The blockchain-based transaction data reconciliation processing method provided by the embodiment of the present invention can further improve the accuracy of transaction data reconciliation.

Further, the pre-configuration information includes a transaction number; correspondingly, determining the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configuration information includes:

According to the transaction number, the target business reconciliation file and the transaction list file on the target chain corresponding to the same transaction are determined. Reference may be made to the above description, and details are not repeated here.

The transaction data reconciliation processing method based on the block chain provided by the embodiment of the present invention can be accurately associated with the target business reconciliation file and the transaction list file on the target chain.

Further, before the step of determining the target business reconciliation file and the target chain transaction list file corresponding to the same transaction according to the pre-configuration information, the block chain-based transaction data reconciliation processing method also includes:

Perform transaction error data detection on the business reconciliation file and the on-chain transaction list file. Reference may be made to the above description, and details are not repeated here.

The transaction data reconciliation processing method based on the blockchain provided by the embodiment of the present invention can further improve the accuracy and applicability of the transaction data reconciliation by performing transaction error data detection in advance.

Further, the detection of transaction error data on the business reconciliation file and the on-chain transaction list file includes:

Obtain the intersection data between the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; the intersection data is the data with the same field name in the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; refer to The above description will not be repeated here.

Comparing the field content information of all the same fields in the intersection data, if it is determined that all the comparison results are consistent, then it is determined that there is no transaction error data in the intersection data. Reference may be made to the above description, and details are not repeated here.

The blockchain-based transaction data reconciliation processing method provided by the embodiment of the present invention can accurately detect transaction error data.

Further, the transaction data reconciliation processing method based on the block chain also includes:

If it is determined that there is at least one group of inconsistent comparison results, then it is determined that there is first type of transaction error data in the intersection data; the first type of transaction error data is transaction error data whose content of comparison information is inconsistent. Reference may be made to the above description, and details are not repeated here.

The blockchain-based transaction data reconciliation processing method provided by the embodiment of the present invention can accurately detect transaction error data.

Further, the detection of transaction error data on the business reconciliation file and the on-chain transaction list file includes:

Obtain the unilateral data between the business reconciliation file and the on-chain transaction list file; the unilateral data exists in the business reconciliation file and does not exist in the on-chain transaction list file The data corresponding to the field name of the ; and the data corresponding to the field name that does not exist in the business reconciliation file and exists in the on-chain transaction list file; you can refer to the above description, and will not repeat it.

It is determined that the second type of transaction error data exists in the unilateral data; the second type of transaction error data is transaction error data with missing fields. Reference may be made to the above description, and details are not repeated here.

The blockchain-based transaction data reconciliation processing method provided by the embodiment of the present invention can accurately detect transaction error data.

It should be noted that the blockchain-based transaction data reconciliation processing method provided by the embodiment of the present invention can be used in the financial field, and can also be used in any technical field other than the financial field. The application field of the transaction data reconciliation processing method is not limited.

Fig. 12 is a schematic structural diagram of a block chain-based transaction data reconciliation processing device provided by an embodiment of the present invention. As shown in Fig. 12, the block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention includes An acquisition unit 1201, a determination unit 1202 and an account reconciliation unit 1203, wherein:

The obtaining unit 1201 is used to obtain the business reconciliation file and the transaction list file on the chain; the transaction list file on the chain includes the transaction data in the block and the world state data; the determination unit 1202 is used to determine the The target business reconciliation file and the target on-chain transaction list file; the target business reconciliation file and the target on-chain transaction list file respectively include the hash values of the check element attributes arranged in a preset order; the reconciliation unit 1203 uses Then compare the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determine the transaction data reconciliation processing result according to the comparison result.

Specifically, the obtaining unit 1201 in the device is used to obtain the business reconciliation file and the transaction list file on the chain; the transaction list file on the chain includes the transaction data in the block and the world state data; the determination unit 1202 is used to The information determines the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction; the target business reconciliation file and the target on-chain transaction list file respectively include the hash value of the check element attributes arranged in a preset order The reconciliation unit 1203 is used to compare the hash values corresponding to the target business reconciliation file and the target chain transaction list file one by one according to the preset order, and determine the transaction data according to the comparison result Reconciliation processing results.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention obtains the business reconciliation file and the transaction list file on the chain; the transaction list file on the chain includes the transaction data in the block and the world state data; according to The pre-configuration information determines the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction; the target business reconciliation file and the target on-chain transaction list file respectively include hashes of attributes of the verification elements arranged in a preset order. Greek value: compare the hash values corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset order, and determine the transaction data reconciliation processing result according to the comparison result , can improve the accuracy and applicability of transaction data reconciliation.

Further, the reconciliation unit 1203 is specifically used for:

If it is determined that the comparison results of pairwise comparisons of all hash values are the same, then it is determined that the transaction data reconciliation processing results are consistent;

If it is determined that there is at least one group of hash values whose pairwise comparison results are not the same, it is determined that the transaction data reconciliation processing result is inconsistent.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention can further improve the accuracy of transaction data reconciliation.

Further, the pre-configuration information includes a transaction number; correspondingly, the determining unit 1202 is specifically configured to:

According to the transaction number, the target business reconciliation file and the transaction list file on the target chain corresponding to the same transaction are determined.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention can be accurately associated with the target business reconciliation file and the transaction list file on the target chain.

Further, before the step of determining the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configuration information, the block chain-based transaction data reconciliation processing device is also used for:

Perform transaction error data detection on the business reconciliation file and the on-chain transaction list file.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention can further improve the accuracy and applicability of transaction data reconciliation by performing transaction error data detection in advance.

Further, the transaction data reconciliation processing device based on blockchain is also specifically used for:

Obtain the intersection data between the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; the intersection data is the data with the same field name in the business reconciliation file corresponding to the same transaction and the transaction list file on the chain;

Comparing the field content information of all the same fields in the intersection data, if it is determined that all the comparison results are consistent, then it is determined that there is no transaction error data in the intersection data.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention can accurately detect transaction error data.

Further, the transaction data reconciliation processing device based on blockchain is also specifically used for:

If it is determined that there is at least one group of inconsistent comparison results, then it is determined that there is first type of transaction error data in the intersection data; the first type of transaction error data is transaction error data whose content of comparison information is inconsistent.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention can accurately detect transaction error data.

Further, the transaction data reconciliation processing device based on blockchain is also specifically used for:

Obtain the unilateral data between the business reconciliation file and the on-chain transaction list file; the unilateral data exists in the business reconciliation file and does not exist in the on-chain transaction list file The data corresponding to the field name of ; and the data corresponding to the field name that does not exist in the business reconciliation file and exists in the on-chain transaction list file;

It is determined that the second type of transaction error data exists in the unilateral data; the second type of transaction error data is transaction error data with missing fields.

The block chain-based transaction data reconciliation processing device provided by the embodiment of the present invention can accurately detect transaction error data.

The embodiment of the present invention provides an embodiment of a block chain-based transaction data reconciliation processing device that can specifically be used to execute the processing procedures of the above-mentioned method embodiments, and its functions will not be repeated here. You can refer to the detailed description of the above-mentioned method embodiments .

FIG. 13 is a schematic diagram of the physical structure of an electronic device provided by an embodiment of the present invention. As shown in FIG. 13 , the electronic device includes: a processor (processor) 1301, a memory (memory) 1302, and a bus 1303;

Wherein, the processor 1301 and the memory 1302 complete mutual communication through the bus 1303;

The processor 1301 is configured to invoke program instructions in the memory 1302 to execute the methods provided by the above method embodiments, for example including:

Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data;

Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value;

Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result.

This embodiment discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by the computer, the computer The methods provided by the above-mentioned method embodiments can be implemented, for example, including:

Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data;

Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value;

Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result.

This embodiment provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program causes the computer to execute the methods provided in the foregoing method embodiments, for example, including:

Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data;

Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value;

Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

In the description of this specification, descriptions referring to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", "examples", "specific examples", or "some examples" etc. mean It means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (10)

1. A transaction data reconciliation processing method based on blockchain, characterized in that, comprising: Obtain the business reconciliation file and the chain transaction list file; the chain transaction list file includes the transaction data in the block and the world state data; Determine the target business reconciliation file and the target on-chain transaction list file corresponding to the same transaction according to the pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include attributes of check elements arranged in a preset order hash value; Comparing the hash values respectively corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset sequence, and determining the transaction data reconciliation processing result according to the comparison result. 2. The transaction data reconciliation processing method based on block chain according to claim 1, wherein said determining the transaction data reconciliation processing result according to the comparison result comprises: If it is determined that the comparison results of pairwise comparisons of all hash values are the same, then it is determined that the transaction data reconciliation processing results are consistent; If it is determined that there is at least one group of hash values whose pairwise comparison results are not the same, it is determined that the transaction data reconciliation processing result is inconsistent. 3. The transaction data reconciliation processing method based on blockchain according to claim 1, wherein the preconfigured information includes a transaction number; correspondingly, the target business corresponding to the same transaction is determined according to the preconfigured information Reconciliation files and transaction list files on the target chain, including: According to the transaction number, the target business reconciliation file and the transaction list file on the target chain corresponding to the same transaction are determined. 4. The transaction data reconciliation processing method based on block chain according to any one of claims 1 to 3, characterized in that, the target business reconciliation file and the target chain corresponding to the same transaction are determined according to the pre-configured information Before the step of the transaction list file, the transaction data reconciliation processing method based on the block chain also includes: Perform transaction error data detection on the business reconciliation file and the on-chain transaction list file. 5. The transaction data reconciliation processing method based on blockchain according to claim 4, wherein the detection of transaction error data on the business reconciliation file and the transaction list file on the chain comprises: Obtain the intersection data between the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; the intersection data is the data with the same field name in the business reconciliation file corresponding to the same transaction and the transaction list file on the chain; Comparing the field content information of all the same fields in the intersection data, if it is determined that all the comparison results are consistent, then it is determined that there is no transaction error data in the intersection data. 6. The transaction data reconciliation processing method based on block chain according to claim 5, characterized in that, the transaction data reconciliation processing method based on block chain also includes: If it is determined that there is at least one group of inconsistent comparison results, then it is determined that there is first type of transaction error data in the intersection data; the first type of transaction error data is transaction error data whose content of comparison information is inconsistent. 7. The transaction data reconciliation processing method based on blockchain according to claim 4, wherein the detection of transaction error data on the business reconciliation file and the on-chain transaction list file includes: Obtain the unilateral data between the business reconciliation file and the on-chain transaction list file; the unilateral data exists in the business reconciliation file and does not exist in the on-chain transaction list file The data corresponding to the field name of ; and the data corresponding to the field name that does not exist in the business reconciliation file and exists in the on-chain transaction list file; It is determined that the second type of transaction error data exists in the unilateral data; the second type of transaction error data is transaction error data with missing fields. 8. A blockchain-based transaction data reconciliation processing device, characterized in that it comprises: An acquisition unit, configured to acquire a business reconciliation file and an on-chain transaction list file; the on-chain transaction list file includes transaction data and world state data in the block; A determining unit, configured to determine a target business reconciliation file and a target on-chain transaction list file corresponding to the same transaction according to pre-configured information; the target business reconciliation file and the target on-chain transaction list file respectively include The hash value of the check element attribute; The reconciliation unit is used to compare the hash values corresponding to the target business reconciliation file and the target on-chain transaction list file one by one according to the preset order, and determine the transaction data pair according to the comparison result. Account processing results. 9. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, characterized in that, when the processor executes the computer program, any one of claims 1 to 7 is realized. A step of said method. 10. A computer-readable storage medium, on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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