HK1246893B - Method and device for writing business data in block chain system - Google Patents

Description

A method and device for writing business data into a blockchain system

Technical Field

The present application relates to the field of computer technology, and in particular to a method and apparatus for writing business data into a blockchain system.

Background Art

With the development of computer technology, blockchain technology (also known as distributed ledger technology) has become popular for its advantages such as decentralization, openness, transparency, immutability and trustworthiness. It has been widely used in many fields such as smart contracts, securities trading, e-commerce, Internet of Things, social communications, file storage, proof of existence, identity authentication, equity crowdfunding, etc.

When implementing a business system based on blockchain technology, the business system (also known as a blockchain system because it uses blockchain technology) needs to write business data to the blockchain. After receiving the business data to be written to the blockchain (also known as transactions in blockchain technology), the blockchain system executes these transactions in chronological order using a first-in-first-out queue, completing operations such as transaction verification, execution, and data entry.

In existing technologies, to fully and rationally utilize a blockchain system's computing resources, a blockchain system may integrate multiple different types of services and treat these different types of service data equally, chronologically. However, in some cases, this chronological approach to transaction execution fails to meet application requirements. For example, when processing information with varying levels of confidentiality, a blockchain system may receive transactions tailored to each level. In these cases, information with different levels of confidentiality may need to be isolated to prevent the leakage of higher-level information and ensure information security. Therefore, when specialized controls are required for a particular service, existing approaches to writing blockchain service data fail to meet application requirements.

Therefore, there is an urgent need for a business data writing method that can meet the business processing requirements of different types of business data in a blockchain system that is connected to multiple business types.

Summary of the Invention

The embodiments of the present application provide a method and apparatus for writing business data into a blockchain system, thereby meeting the processing requirements of different types of business data in the blockchain system.

The embodiments of this application adopt the following technical solutions:

This embodiment of the present application provides a method for writing business data into a blockchain system, wherein the blockchain system includes at least one blockchain, and the method includes:

Receive a blockchain business data write request, wherein the blockchain business data write request includes business feature information of the business data to be added to the chain;

Determining a blockchain that matches the business data to be added to the chain based on the blockchain data record table and the business characteristic information of the business data to be added to the chain; wherein the blockchain data record table records the business type identification information of the blockchain, which is used to reflect the business characteristic information of the business data that has been added to the chain in the blockchain;

The execution result of the business data to be entered into the chain is written into the blockchain that matches the business data to be entered into the chain.

Preferably, in the method provided in the embodiment of the present application, determining a blockchain that matches the business data to be added to the chain based on the blockchain data record table and the business feature information of the business data to be added to the chain includes:

When first business type identification information that meets the first preset condition is found in the blockchain data record table, the blockchain corresponding to the first business type identification information is determined as the blockchain that matches the business data to be added to the chain;

Among them, satisfying the first preset condition includes: the first business type identification information matches the business feature information of the business data to be linked.

Preferably, in the method provided in the embodiment of the present application, the service feature information is taken as 2 to the power of N, where N is 0 or a positive integer;

The business type identification information of the blockchain is taken as the sum of different business feature information of the business data that has been entered into the blockchain.

Preferably, in the method provided in the embodiment of the present application, the first service type identification information matches the service feature information of the service data to be in-linked, specifically:

If the logical AND operation of the value of the first business type identification information and the value of the business characteristic information of the to-be-linked business data is equal to the value of the business characteristic information of the to-be-linked business data, then the first business type identification information matches the business characteristic information of the to-be-linked business data.

Preferably, in the method provided in the embodiment of the present application, determining a blockchain that matches the business data to be added to the chain based on the blockchain data record table and the business feature information of the business data to be added to the chain, further includes:

When the first business type identification information that meets the first preset condition is not found in the blockchain data record table, the blockchain corresponding to the preset second business type identification information is determined as the blockchain that matches the business data to be entered into the chain.

Preferably, in the method provided in the embodiment of the present application, the blockchain data record table further records blockchain status information, and then, the first business type identification information satisfies the first preset condition and further includes:

The status information of the blockchain corresponding to the first business type identification information is a valid status.

Preferably, in the method provided in the embodiment of the present application, the blockchain data record table further records the last block hash value and the corresponding timestamp of the blockchain, and then writing the execution result of the business data to be entered into the blockchain that matches the business data to be entered into the chain includes:

Extract the last block hash value and corresponding timestamp corresponding to the blockchain that matches the business data to be added to the chain;

Writing the execution result of the business data to be entered into the chain, the last block hash value and the corresponding timestamp into a new block in the blockchain;

The hash value and corresponding timestamp of the new block are updated into the blockchain data record table as the new last block hash value and corresponding timestamp.

Preferably, in the method provided in the embodiment of the present application, the blockchain system includes a blockchain as a main chain. After receiving the blockchain business data write request, the method further includes:

When the second preset condition is met, a new blockchain is added to the blockchain system as a side chain, and a record corresponding to the new blockchain and its business type identification information is added to the blockchain data record table.

Preferably, in the method provided in the embodiment of the present application, satisfying the second preset condition includes:

The business characteristic information of the business data to be added to the blockchain contained in the blockchain business data write request matches the preset business characteristic information; and/or

The concurrent number of received blockchain business data write requests reaches a preset threshold; and/or

The scheduled time for adding a new blockchain as a sidechain has arrived.

Preferably, in the method provided in the embodiment of the present application, the blockchain system includes a blockchain as a main chain and at least one blockchain as a side chain. Then, after receiving the blockchain business data write request, the method further includes:

When the third preset condition is met, the blockchain serving as the side chain is terminated in the blockchain system, and a record corresponding to the terminated blockchain is updated in the blockchain data record table.

Preferably, in the method provided in the embodiment of the present application, satisfying the third preset condition includes:

The concurrent number of received blockchain business data write requests is less than a preset threshold; and/or

The side chain's validity period has arrived.

Preferably, in the method provided in the embodiment of the present application, updating the record corresponding to the terminated blockchain in the blockchain data record table includes:

Deleting the records corresponding to the terminated blockchain; or

When the state information of the terminated blockchain is recorded in the blockchain data record table, the state information of the terminated blockchain is modified to an invalid state.

An embodiment of the present application further provides a device for writing business data into a blockchain system, wherein the blockchain system includes at least one blockchain, and the device includes:

A request receiving module, configured to receive a blockchain business data write request, wherein the blockchain business data write request includes business feature information of the business data to be added to the chain;

An entry blockchain determination module is configured to determine a blockchain that matches the business data to be entered into the chain based on the blockchain data record table and the business characteristic information of the business data to be entered into the chain; wherein the blockchain data record table records the business type identification information of the blockchain, and the business type identification information is used to reflect the business characteristic information of the business data that has been entered into the chain in the blockchain;

The on-chain module is used to write the execution result of the business data to be on-chain into the blockchain that matches the business data to be on-chain.

At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

In an embodiment of the present application, after the blockchain system receives a blockchain business data write request including business feature information of the business data to be added to the chain, since the blockchain data record table records the business type identification information of the blockchain, and this identification information can reflect the business feature information of the business data already added to the chain in the blockchain, therefore, based on the blockchain data record table and the business feature information of the business data to be added to the chain, the blockchain that matches the business data to be added to the chain can be determined, so that the execution result of the business data to be added to the chain can be written to the matching blockchain. Using the technical solution of the embodiment of the present application, a matching blockchain can be selected based on the business feature information of the business data to be added to the chain to complete the addition, and a blockchain data record table can be established to record each blockchain corresponding to the business type, thereby making it possible to process different types of business data differently, thereby meeting the processing requirements of different types of business data in the blockchain system.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

FIG1 is a flow chart of a method for writing business data into a blockchain system according to an embodiment of the present application;

FIG2 is a flow chart of a second method for writing business data into a blockchain system according to an embodiment of the present application;

FIG3 is a schematic diagram of a blockchain system in this application that separates a blockchain side chain;

FIG4 is another schematic diagram of a blockchain side chain separated from the blockchain system in this application;

FIG5 is a schematic diagram of the blockchain system in this application terminating a blockchain side chain;

FIG6 is a schematic diagram of the structure of an apparatus for writing business data into a blockchain system provided by an embodiment of the present application.

DETAILED DESCRIPTION

To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

The following describes in detail the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

The present application provides a method for writing business data into a blockchain system, wherein the blockchain system includes at least one blockchain. If the blockchain system includes only one blockchain, this blockchain can be considered the blockchain system's main chain, and the execution results of all business data accessed by the blockchain system are written to this main chain by default. In specific implementations, based on the transaction processing requirements of the blockchain system, the business data to be entered into the blockchain is executed in the order in which the blockchain business data write requests are received, and is written to the main chain in chronological order.

If a blockchain system contains multiple blockchains, one of them serves as the main chain of the blockchain system, and the remaining blockchains serve as side chains of the blockchain system. In the blockchain system referred to in the embodiment of the present application, there is a main chain. In the absence of special configuration, the execution results of all types of business data accessed by the blockchain system are written to the main chain by default. When necessary, the blockchain system can be divided into one or more side chains, each of which processes business data of one or more different business types. Then, based on the business feature information of the business data, a certain type or certain types of business data with special processing requirements can be allocated to the side chain for processing, without affecting the processing of business data of other business types written to the main chain and written to other side chains (if any), thereby meeting the business processing requirements of different types of business data. The following will describe in detail the implementation process of the embodiment of the present application.

As shown in FIG1 , the method for writing business data into a blockchain system provided in an embodiment of the present application may specifically include:

S101: Receive a blockchain business data write request, where the blockchain business data write request includes business feature information of the business data to be added to the blockchain;

S102: Determine a blockchain that matches the business data to be added to the blockchain based on the blockchain data record table and the business feature information in the blockchain business data request; wherein the blockchain data record table records the business type identification information of the blockchain, and the business type identification information is used to reflect the business feature information of the business data that has been added to the blockchain;

S103: Writing the execution result of the business data to be added to the blockchain that matches the business data to be added to the blockchain.

The blockchain system executes the blockchain business data write request (also called transaction in the blockchain technology system, abbreviated as tx) received in step S101, which is used to request the execution of the business data to be entered into the chain, so as to write the execution result of the business data to be entered into the chain into the blockchain in the blockchain system. The above request contains relevant information about the business data to be entered into the chain, such as the business feature information of the business data to be entered into the chain. The business feature information of the business data to be entered into the chain is used to reflect the type of business data to be entered into the chain, so as to distinguish business data of different business types. In an embodiment of the present application, the type of business data can be divided according to a variety of different dimensions. For example, it can be divided according to the processing method involved in the business data, such as contract-type business, transfer-type business, etc.; it can also be divided according to the confidentiality level of the information involved in the business data, such as top secret, confidential, secret, etc.

In the embodiment of the present application, the business characteristic information of the business data can be represented by characters such as A, B, C, and D, as long as different types of business data can be distinguished. Assuming that the blockchain system includes three side chains, which are respectively used to process type A and type D businesses (which can be represented as [A, D]), type B and type D businesses (which can be represented as [B, C]), and type D businesses (which can be represented as [D]), when determining the blockchain that matches the business data to be added to the chain, the blockchain data record table can be traversed, and the business characteristic information of the business data to be added to the chain (which can be represented as characters such as A, B, C, and D here) can be matched with the business type identification information of the blockchain recorded in the blockchain data record table (which can be represented as [A, D], [B, C], and [D] here) to determine the blockchain to which the business data to be added should be written, thereby realizing the subsequent addition operation.

A preferred embodiment of this application is to represent service feature information as a power of 2, where the parameter N is 0 or a positive integer. This representation of service feature information offers the advantage that when a side chain simultaneously accesses service data of multiple different service types, the service feature information is represented as a power of 2, i.e., ^2N (N ≥ 0), making it easier to calculate the service type identification information corresponding to the side chain and perform subsequent logical operations. The following text further illustrates the process of calculating the service type identification information and performing logical operations.

In addition to the business feature information of the business data to be added to the chain, the blockchain business data write request may also include information signed by the business initiator (also known as the transaction initiator) using the private key, which is used in conjunction with the public key for verification when the blockchain system processes the business data corresponding to the request: if the verification is successful, it means that the transaction is legal and is allowed to access the current blockchain system and proceed to the subsequent chain-in steps; otherwise, the transaction will be rejected.

After receiving a request to write blockchain business data, the blockchain system can save the business data (also known as the transaction) to be added to the chain to the local cache (which can be understood as the blockchain system's transaction pool) for subsequent processing. When caching, the transaction model table structure shown in Table 1 can be used to record information related to the business data to be added to the chain.

Table 1 Example of transaction model table structure

After receiving a blockchain business data write request, the blockchain system executes step S102 to determine a blockchain that matches the business data to be added to the chain based on the blockchain data record table and the business characteristic information of the business data to be added to the chain. For side chains in the blockchain system, the business type identification information of the blockchain recorded in the blockchain data record table can be determined based on the business characteristic information of one or more business data written to the side chain. Therefore, the business type identification information of the side chain can reflect the business characteristic information of the business data already added to the chain in the side chain. For the main chain in the blockchain system, its business type identification information can be represented by a preset identifier, such as "*", as long as it can be clearly distinguished from the business type identification information of the side chain and does not confuse the conclusion when performing subsequent logical operations with the value of the business characteristic information of the business data to be added to the chain.

For example, let's take the business characteristic information above, expressed as 2 raised to the power of N, or 2 ^N (N ≥ 0). If a blockchain sidechain A contains two types of business data, then the business type identification information for blockchain sidechain A can be determined based on the business characteristic information of these two types of business data. Specifically, assume that the business characteristic information value of the first type of business data is 2 ⁰ (in this case, the value of N is 0), corresponding to the seller business; and the business characteristic information value of the second type of business data is 2 ¹ (in this case, the value of N is 1), corresponding to the mobile phone authentication business. In this example, the business type identification information for blockchain sidechain A can be taken as the sum of the business characteristic information values of the two types of business data written into sidechain A, namely 2 ⁰ + 2 ¹ , which can be expressed as a decimal number and recorded as 3.

Since the blockchain data record table presents the correspondence between the blockchain and the business type of the business data written into the blockchain (the business type is reflected by the business type identification information that can reflect the business characteristic information of the business data that has been entered into the chain), therefore, executing step S102 can search and determine the blockchain that matches the business data to be entered into the chain in the blockchain data record table based on the business characteristic information of the business data to be entered into the chain (the business characteristic information can represent the business type of the business data to be entered into the chain), and then execute step S103 to complete the entry of the business data to be entered into the chain.

Specifically, when executing step S102, the following method may be preferably adopted:

When first business type identification information that meets the first preset condition is found in the blockchain data record table, the blockchain corresponding to the first business type identification information is determined as the blockchain that matches the business data to be added to the chain;

The first business type identification information satisfies the first preset condition, which includes: the first business type identification information matches the business feature information of the to-be-linked business data.

Given that a correspondence between blockchains and business type identification information has been established in the blockchain data record table, it can reflect what types of business data are connected to the blockchain. Therefore, if the business feature information of the business data to be entered into the chain matches the first business type identification information recorded in the blockchain data record table, the matching blockchain can be determined for the business data to be entered into the chain, that is, it can be determined which blockchain the business data of this type should be written into.

Furthermore, when determining whether the aforementioned first preset condition is met, that is, determining whether the first business type identification information matches the business characteristic information of the business data to be added to the chain, the following method can be used: if the logical AND operation of the value of the first business type identification information and the value of the business characteristic information of the business data to be added to the chain equals the value of the business characteristic information of the business data to be added to the chain, then the first business type identification information matches the business characteristic information of the business data to be added to the chain. Specifically, a logical AND operation can be performed on the value of the business characteristic information of the business data to be added to the chain with each business type identifier recorded in the blockchain data record table one by one until the first business type identification information is found such that the value of the logical AND operation equals the value of the aforementioned business characteristic information. Alternatively, the logical expression "value of business characteristic information & value of first business type identification information == value of business characteristic information" can be calculated to determine whether the result is true. In this case, the first business type identification information for which the logical expression evaluates to "true" is determined to match the business characteristic information of the business data to be added to the chain.

Continuing with the above example, assume that the received business data to be added to the chain is a mobile phone authentication business, and the value of the business feature information corresponding to the business data to be added to the chain is 2 ¹ (the value of N is 1 in this case). Performing a logical AND operation on the current business feature information value 2 ¹ and the value of the business type identification information recorded in the blockchain data record table shows that when the business feature information value 2 ¹ is binary ANDed with the value 3 (2 ⁰ + 2 ¹ ) of the business type identification information of blockchain side chain A, the result is 2, which is equal to the business feature information value 2 ^1. Therefore, the business type identification information of blockchain side chain A can be used as the first business type identification information that matches the business feature information of the business data to be added to the chain, thereby determining blockchain side chain A as the blockchain that matches the business data to be added to the chain, indicating that the business data to be added to the chain should be written to blockchain side chain A.

When performing a binary AND operation, the service type identification information represented in decimal form is first converted into a binary string, and then the operation is performed according to the calculation principle of the binary AND operation: 0 & 0 = 0, 0 & 1 = 0, 1 & 0 = 0, 1 & 1 = 1, thereby obtaining the operation result. For example, the operation process in the above example can be refined as follows:

2&3→10&11＝10→2＝2 ¹

There are various ways to implement the aforementioned process of searching for matching first business type identification information on a computer. For example, an SQL statement can be used to select the first business type identification information from the blockchain data record table that satisfies the condition "business feature information value & business type identification information value == business feature information value" and evaluates to "true." Alternatively, the data from the blockchain data record table can be extracted into memory and the search performed through a program's loop comparison. This loop comparison process can be further optimized, for example by partitioning the business type identification information in the blockchain data record table and placing records that meet the condition "business type identification information value % 2 == 0" (i.e., where the business type identification information value is a multiple of 2) into a hash table. Records that are not multiples of 2 can be placed in a loop queue for traversal, thereby reducing the number of loops and improving search efficiency.

When implementing step S102 using the above specific steps, it is possible that the blockchain data record table cannot find the first business type identification information that meets the above first preset condition. In this case, it can be understood that the blockchain system does not include a side chain that accesses business data such as the business data to be added to the chain. In this case, the blockchain corresponding to the preset second business type identification information can be directly determined as the blockchain that matches the business data to be added to the chain. In specific implementations, the preset second business type identification information can be the identifier corresponding to the main chain, such as "*", so that the blockchain that matches the business data to be added to the chain is determined as the main chain in the blockchain system, and the execution results of the business data to be added to the chain that are not assigned to the side chain for processing are written to the above main chain.

In an embodiment of the present application, in addition to recording the business type identification information corresponding to the blockchain, the blockchain data record table may also record the status information of the blockchain. The status information of the blockchain is used to reflect whether the blockchain is valid, that is, whether the corresponding blockchain can receive newly added blocks. For the main chain in the blockchain system, the status information of the main chain usually remains valid at all times, otherwise the blockchain system may not operate normally. For the side chain in the blockchain system, when the business type corresponding to the side chain is allowed to be accessed to the side chain (that is, the business type reflected by the business type identifier of the side chain), the status information of the side chain is valid; when the business type corresponding to the side chain is not allowed to be accessed to the side chain, the status information of the side chain is invalid.

When determining a blockchain that matches the business data to be added to the chain based on the blockchain data record table, in addition to considering the compatibility between the blockchain's business type identification information and the business characteristics of the business data to be added to the chain, the validity of the blockchain itself must also be considered. If the blockchain status information recorded in the blockchain data record table is invalid, the business data to be added to the chain should not be written to such an invalid blockchain. Therefore, when determining the first business type identification information, it is also required that the status information of the blockchain corresponding to the first business type identification information is valid.

In specific implementation, it is usually required that two conditions are met at the same time, that is, the first business type identification information satisfies the first preset condition, including: the first business type identification information matches the business characteristic information of the business data to be included in the chain, and the status information of the blockchain corresponding to the first business type identification information is in a valid state. In the specific implementation of the judgment process, the order of judging the two conditions can be interchanged, and the embodiments of the present application do not limit it. In other words, you can first judge the status information of the blockchain recorded in the block data record table, and then only look for the blockchain that matches the business data to be included in the chain in the blockchain whose status information is in a valid state; you can also first look for the first business type identification information that matches the business characteristic information of the business data to be included in the chain in the block data record table, and then judge whether the status information of the blockchain corresponding to the first business type identification information is in a valid state. If valid, determine that the corresponding blockchain is a blockchain that matches the business data to be included in the chain.

In an embodiment of the present application, the above-mentioned blockchain data record table can also record the last block hash value and the corresponding timestamp of the blockchain, for example, using the table structure shown in Table 2 below for recording.

Table 2 Blockchain data record table structure example

Based on the blockchain data record table given in Table 2, when the blockchain system executes step S103 to write the execution result of the business data to be added to the blockchain that matches the business data to be added to the blockchain, the following steps may be specifically included, see Figure 2:

S1031: Extract the last block hash value and corresponding timestamp corresponding to the blockchain that matches the business data to be added to the chain;

S1032: Write the execution result of the business data to be entered into the chain, the final block hash value and the corresponding timestamp into a new block in the blockchain;

S1033: Update the new block's hash value and corresponding timestamp as the new last block's hash value and corresponding timestamp into the blockchain data record table.

In the above implementation process, if the same type of business data is connected to multiple side chains at the same time, multiple business type identification information that meets the first preset condition may be found in the blockchain data record table. In this case, the business data to be connected to the chain may need to be connected to multiple matching blockchains, and the last block hash value and corresponding timestamp of these blockchains in the blockchain data record table must be updated.

The following example illustrates this situation. Assume that a blockchain system integrates multiple types of business data. In addition to the seller business with a business feature information value of ²⁰ and the mobile phone authentication business with a business feature information value of ²¹ mentioned in the above example, this also includes a mobile phone registration business with a business feature information value of ²² (in this case, the value of N is 2). It should be noted that the correspondence between the business feature information values of all business types integrated into the blockchain system and their corresponding actual businesses is typically pre-set by the blockchain system developer, as shown in Table 3. When new types need to be integrated into the blockchain system, new correspondences can be added to meet system expansion needs. Typically, when configuring business feature information, business feature information values are assigned to various business types in an incrementing fashion based on the natural number N, as shown in Table 3.

Table 3 Example of corresponding table of service characteristic information

Business Type Description Business characteristic information Seller Business Mobile phone authentication service Mobile phone registration service Refund business ······

Assuming that the blockchain system connects the seller business and mobile phone authentication business to side chain one, and connects the seller business and mobile phone registration business to side chain two, the blockchain data record table is shown in Table 4:

Table 4 Blockchain data record example

Business type identification information The last block hash value Status information Timestamp * Code*-1 1 2017/2/13 3 Code3-1 1 2017/2/15 5 Code5-1 1 2017/2/14 ······

When the business data to be added to the chain is a seller business and the value of its business characteristic information is 1, then according to the method of the aforementioned embodiment, the two blockchains with business type identification information 3 and 5 both meet the requirements of the first preset condition. Therefore, the seller business will be added to the two blockchain side chains with business type identification information 3 and 5 simultaneously or successively, and the last block hash values of the two blockchains will be updated accordingly. For example, the hash value Code3-1 is updated to the hash value Code3-2, and the hash value Code5-1 is updated to the hash value Code5-2. The timestamp corresponding to the block hash value is also updated accordingly with the generation of the new block.

In this example, when the business data to be added to the chain is a refund business and the value of its business characteristic information is 8 (2 ³ ), according to the method of the aforementioned embodiment, the business type identification information that meets the first preset condition cannot be found in the blockchain data record table, indicating that the blockchain system has not established a side chain to handle this type of business. Therefore, the execution result of the business data to be added to the chain is written to the main chain (the business type identification information is "*"), and the last block hash value and corresponding timestamp of the main chain are updated accordingly, for example, Code*-1 is updated to Code*-2.

The above details various implementations of how to determine the matching blockchain for incoming business data based on the blockchain data record table to complete the on-chain process. The following will focus on different approaches to handling blockchains in a blockchain system and their impact on the blockchain data record table under different circumstances.

After the blockchain system receives the blockchain business data write request, the method provided in the embodiment of the present application may further include:

When the second pre-set condition is met, a new blockchain is added to the blockchain system as a sidechain, and a record corresponding to the new blockchain and its business type identifier is added to the blockchain data record table. As shown in Figures 3 and 4, the blockchain system can, under certain conditions, create a sidechain to process business data with business feature information values of 1 and 2. The business type identifier of this sidechain is 3. For example, when launching a campaign to encourage users to authenticate their phones, such as "Get points with mobile phone authentication," it is foreseeable that the concurrent volume of mobile phone authentication services will be high. If all of this is handled by the main chain in the blockchain system, processing delays may occur or resource competition may occur with the processing of other types of services. In this case, a sidechain can be created to offload the mobile phone authentication service (with business feature information value of 2) to this sidechain for execution, thereby meeting the processing needs of different types of business data in the blockchain system, especially the special processing requirements of certain types of business data.

Specifically, the second preset condition can be that the business characteristic information of the business data to be added to the blockchain, included in the blockchain business data write request, matches the preset business characteristic information. In this case, the blockchain system can pre-set certain business types to be added to the sidechain. When the newly received business data to be added to the chain belongs to this type, its business characteristic information will match the preset business characteristic information. As a result, the new blockchain can be added to the blockchain system as a sidechain, and a row is added to the blockchain data record table shown in Table 4 to record it.

In addition, the above-mentioned operation of adding a side chain can also be performed when the concurrent number of received blockchain business data write requests reaches a preset threshold and/or when the preset time for adding a new blockchain as a side chain arrives.

In addition to the aforementioned operation of adding a sidechain, when a third preset condition is met, such as when the number of concurrent blockchain business data write requests received is less than a preset threshold and/or the sidechain's expiration time has expired, the blockchain system can also terminate the blockchain serving as a sidechain, and update the record corresponding to the terminated blockchain in the blockchain data record table. For example, as shown in Figure 5, the blockchain system can terminate a blockchain's sidechain under certain conditions. For example, in Figure 5, the sidechain with business type identification information of 3 will be terminated. After the sidechain is terminated, the business data of the two types of business characteristics with business characteristics information of 1 and 2 will no longer be written to the terminated sidechain, but will be merged and processed by the main chain.

More specifically, when updating the records corresponding to the terminated blockchain in the blockchain data record table, various methods can be used. For example, the records corresponding to the terminated blockchain can be deleted, or the status information of the terminated blockchain can be modified to be invalid. Taking the blockchain data record table shown in Table 4 as an example, assuming that the blockchain with the business type identification information of 5 is to be terminated, the value of the status information corresponding to the blockchain can be set to "0".

In addition to the method for writing business data into a blockchain system described in detail above, an embodiment of the present application also provides a device for writing business data into a blockchain system. The blockchain system includes at least one blockchain. Referring to FIG6 , the device includes:

A request receiving module 101 is configured to receive a blockchain business data write request, wherein the blockchain business data write request includes business feature information of the business data to be added to the blockchain;

The blockchain entry determination module 102 is configured to determine a blockchain that matches the business data to be entered into the blockchain based on the blockchain data record table and the business characteristic information of the business data to be entered into the blockchain. The blockchain data record table records the business type identification information of the blockchain, and the business type identification information is used to reflect the business characteristic information of the business data that has been entered into the blockchain.

The on-chain module 103 is used to write the execution results of the business data to be on-chain into the blockchain that matches the business data to be on-chain.

The aforementioned blockchain inclusion determination module 102, which may also be referred to as a data routing module, is configured to determine, based on the rules reflected in the blockchain data record table, to which blockchain the business data to be included should be routed for inclusion.

The blockchain system referred to in this application can be understood as a series of data blocks generated using cryptographic methods. Each data block contains information about a network transaction, which is used to verify the validity of the information and generate the next block. The blocks are stored in a chain-like manner. Based on the characteristics of chain storage, embodiments of this application can fork and aggregate business data according to the business type of the business data, thereby allocating different storage and computing resources, or expanding additional logic to meet the different processing requirements of business data of different business types.

In the method and apparatus provided in the embodiments of the present application, after the blockchain system receives a blockchain business data write request including business feature information of the business data to be added to the chain, since the blockchain data record table records the business type identification information of the blockchain, and this identification information can reflect the business feature information of the business data already added to the chain in the blockchain, therefore, based on the blockchain data record table and the business feature information of the business data to be added to the chain, a blockchain that matches the business data to be added to the chain can be determined, so that the execution result of the business data to be added to the chain can be written to the matching blockchain. By adopting the technical solution of the embodiments of the present application, a matching blockchain can be selected based on the business feature information of the business data to be added to the chain to complete the addition, and a blockchain data record table can be established to record each blockchain corresponding to the business type, thereby making it possible to process different types of business data differently, thereby meeting the processing requirements of different types of business data in the blockchain system.

It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

The present invention is described with reference to the flowcharts and/or block diagrams of the methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of processes and/or boxes in the flowchart and/or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

Memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and/or non-volatile memory in the form of read-only memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims (13)

1. A method for writing business data into a blockchain system, the blockchain system comprising at least one blockchain, the method comprising: Receive a blockchain business data write request, wherein the blockchain business data write request includes business characteristic information of the business data to be added to the chain, and the business characteristic information of the business data to be added to the chain is used to reflect the business type of the business data to be added to the chain. Based on the blockchain data record table and the business characteristic information of the business data to be added to the blockchain, a blockchain that matches the business data to be added to the blockchain is determined; wherein, the blockchain data record table records the business type identification information of the blockchain, which is used to reflect the business characteristic information of the business data already added to the blockchain. Write the execution result of the business data to be added to the blockchain into the blockchain that matches the business data to be added to the blockchain; Specifically, determining the blockchain that matches the business data to be added to the blockchain, based on the blockchain data record table and the business characteristic information of the business data to be added to the blockchain, includes: Traverse the blockchain data record table and match the business characteristic information of the business data to be added to the blockchain with the business type identification information of the blockchain recorded in the blockchain data record table to determine the blockchain that matches the business data to be added to the blockchain. 2. The method according to claim 1, determining the blockchain that matches the business data to be added to the blockchain based on the blockchain data record table and the business characteristic information of the business data to be added to the blockchain, includes: When a first business type identifier that meets the first preset condition is found in the blockchain data record table, the blockchain corresponding to the first business type identifier is determined as the blockchain that matches the business data to be added to the blockchain. Among them, satisfying the first preset condition includes: the first business type identification information matches the business characteristic information of the business data to be added to the chain. 3. According to the method of claim 2, the business feature information is taken as a power of 2, where N is 0 or a positive integer; the business type identification information of the blockchain is taken as the sum of different business feature information of the business data that have been added to the blockchain. 4. According to the method of claim 3, the first business type identification information is matched with the business characteristic information of the business data to be added to the chain, specifically as follows: If the logical AND operation between the value of the first business type identifier and the value of the business feature information of the business data to be added to the chain is equal to the value of the business feature information of the business data to be added to the chain, then the first business type identifier matches the business feature information of the business data to be added to the chain. 5. The method according to claim 2, further comprising determining a blockchain that matches the business data to be added to the blockchain based on the blockchain data record table and the business characteristic information of the business data to be added to the blockchain, and further comprising: When no first business type identifier information that meets the first preset condition is found in the blockchain data record table, the blockchain corresponding to the preset second business type identifier information is determined as the blockchain that matches the business data to be added to the blockchain. 6. According to claim 2, if the blockchain data record table further records blockchain status information, then the first business type identifier information satisfying the first preset condition further includes: The status information of the blockchain corresponding to the first business type identifier information is in a valid state. 7. According to any one of claims 1 to 6, if the blockchain data record table further records the last block hash value and corresponding timestamp of the blockchain, then writing the execution result of the business data to be added to the blockchain into the blockchain that matches the business data to be added to the blockchain includes: Extract the last block hash value and corresponding timestamp of the blockchain that matches the business data to be added to the chain; The execution result of the business data to be added to the chain, the hash value of the last block, and the corresponding timestamp are written into a new block in the blockchain; The hash value and corresponding timestamp of the new block are updated in the blockchain data record table as the new last block hash value and corresponding timestamp. 8. The method according to any one of claims 1 to 6, wherein the blockchain system includes a blockchain as the main chain, and after receiving a blockchain business data write request, the method further includes: When the second preset condition is met, a new blockchain is added as a sidechain in the blockchain system, and a record corresponding to the new blockchain and its business type identification information is added to the blockchain data record table. 9. The method according to claim 8, wherein satisfying the second preset condition includes: The business characteristic information of the blockchain business data to be written to the chain contained in the blockchain business data writing request matches the preset business characteristic information; and/or The number of concurrent blockchain business data write requests received reaches a preset threshold; and/or The pre-defined time for adding a new blockchain as a sidechain has arrived. 10. The method according to any one of claims 1 to 6, wherein the blockchain system includes one blockchain as the main chain and at least one blockchain as a side chain, then after receiving the blockchain business data write request, the method further includes: When the third preset condition is met, the blockchain serving as a sidechain is terminated in the blockchain system, and the record corresponding to the terminated blockchain is updated in the blockchain data record table. 11. The method according to claim 10, wherein satisfying the third preset condition includes: The number of concurrent blockchain business data write requests received is less than a preset threshold; and/or The effective time for the sidechain has arrived. 12. The method of claim 10, updating the record corresponding to the terminated blockchain in the blockchain data record table, comprising: Delete the record corresponding to the terminated blockchain; or, When the blockchain data record table contains the status information of a terminated blockchain, the status information of the terminated blockchain is modified to an invalid state. 13. An apparatus for writing business data into a blockchain system, the blockchain system comprising at least one blockchain, the apparatus comprising: The request receiving module is used to receive a blockchain business data writing request. The blockchain business data writing request includes business characteristic information of the business data to be added to the chain. The business characteristic information of the business data to be added to the chain is used to reflect the business type of the business data to be added to the chain. The blockchain entry determination module is used to determine the blockchain that matches the business data to be entered into the blockchain based on the blockchain data record table and the business characteristic information of the business data to be entered into the blockchain; wherein, the blockchain data record table records the business type identification information of the blockchain, and the business type identification information is used to reflect the business characteristic information of the business data already entered into the blockchain. The on-chain module is used to write the execution result of the business data to be on-chain into the blockchain that matches the business data to be on-chain; The blockchain entry determination module is used for: Traverse the blockchain data record table and match the business characteristic information of the business data to be added to the blockchain with the business type identification information of the blockchain recorded in the blockchain data record table to determine the blockchain that matches the business data to be added to the blockchain.