WO2021012903A1

WO2021012903A1 - Data storage method and apparatus, computer device, and storage medium

Info

Publication number: WO2021012903A1
Application number: PCT/CN2020/099213
Authority: WO
Inventors: 刘恩科; 王梦寒
Original assignee: 平安科技（深圳）有限公司
Priority date: 2019-07-25
Filing date: 2020-06-30
Publication date: 2021-01-28
Also published as: CN110569240B; CN110569240A

Abstract

A data storage method, relating to the field of block chain technology. Said method comprises: storing into a current block data to be recorded, the current block containing a current block generation time and a current identification value corresponding to the current block; querying a target end block associated with the current block, and extracting a current block chain according to the target end block; acquiring a block connection time range corresponding to the current block chain, and querying whether the current block generation time is within the block connection time range; when the current block generation time is not within the block connection time range, acquiring an identification value to be queried corresponding to the target end block, contained in the current block; changing the identification value to be queried into a pre-stored target value, and calculating, according to the target value and the data to be recorded, a target identification value corresponding to the current block; and changing the current identification value to the target identification value, so that the current block serves as an initial block, and generating an update block chain according to the initial block.

Description

Data storage method, device, computer equipment and storage medium

Cross references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on July 25, 2019, the application number is 2019106775779, and the application name is "Data storage methods, devices, computer equipment and storage media", the entire contents of which are incorporated by reference In this application.

Technical field

This application relates to the field of computer technology, in particular to a data storage method, device, computer equipment and storage medium.

Background technique

With the development of computer technology, more and more businesses can be handled through computers, and in order to ensure the transparency of the corresponding business data and the inability to tamper with, more and more business data is stored and interacted through the blockchain.

However, the inventor realizes that traditionally, all data is stored sequentially according to the traditional blockchain storage method. Due to the large amount of data involved, the sequential storage requires high processing speed for different node servers. Therefore, in order to ensure Storage efficiency requires continuous upgrade of node servers, and data storage costs are high.

Summary of the invention

According to various embodiments disclosed in the present application, a data storage method, device, computer equipment, and storage medium are provided.

A data storage method includes:

Store the data to be recorded in the current block, the current block includes the block generation time and the current identification value corresponding to the current block;

Query the target ending block associated with the current block, and extract the current blockchain according to the target ending block;

Get the block connection time range corresponding to the current blockchain, and query whether the current block generation time is within the block connection time range;

When the current block generation time is not within the block connection time range, obtain the identification value to be queried corresponding to the target ending block contained in the current block;

Change the identification value to be queried to a pre-stored target value, and calculate the target identification value corresponding to the current block according to the target value and the data to be recorded; and

Change the current identification value to the target identification value, make the current block as the initial block, and generate and update the blockchain based on the initial block.

A data storage device includes:

The current block receiving module is used to store the data to be recorded in the current block, the current block includes the current block generation time and the current identification value corresponding to the current block;

The extraction module is used to query the target ending block associated with the current block, and extract the current blockchain according to the target ending block;

The first obtaining module is used to obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range;

The second obtaining module is used to obtain the identification value to be queried corresponding to the target ending block contained in the current block when the current block generation time is not within the block connection time range;

The calculation module is used to change the identification value to be queried into the target value, and calculate the target identification value corresponding to the current block according to the pre-stored target value and the data to be recorded; and

The modification module is used to change the current identification value to the target identification value, making the current block as the initial block, and generating and updating the blockchain according to the initial block.

A computer device, including a memory and one or more processors, the memory stores computer readable instructions, when the computer readable instructions are executed by the processor, the one or more processors execute The following steps:

Query the target ending block associated with the current block, and extract the current blockchain based on the target ending block;

One or more computer-readable storage media storing computer-readable instructions. When the computer-readable instructions are executed by one or more processors, the one or more processors execute the following steps:

Change the current identification value to the target identification value, make the current block as the initial block, and generate an updated blockchain based on the initial block.

The above-mentioned data storage methods, devices, computer equipment and storage media are not single-chain storage, and there is no need to continuously upgrade the hardware to reduce costs.

The details of one or more embodiments of the application are set forth in the following drawings and description. Other features and advantages of this application will become apparent from the description, drawings and claims.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Fig. 1 is an application scenario diagram of a data storage method according to one or more embodiments.

Fig. 2 is a schematic flowchart of a data storage method according to one or more embodiments.

FIG. 3 is a schematic flowchart of a block deletion step according to one or more embodiments.

Fig. 4 is a structural block diagram of a data storage device according to one or more embodiments.

Fig. 5 is an internal structure diagram of a computer device according to one or more embodiments.

Detailed ways

In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.

The data storage method provided in this application can be applied to the application environment as shown in FIG. 1. The blockchain system 100 includes different nodes, which may include a recording node 102, an endorsing node 104, etc. The blockchain system 100 stores the data to be recorded in the current block through the recording node 102 included therein. Contains the current block generation time and the current identification value corresponding to the current block, and then obtains the block connection time corresponding to the current blockchain through the recording node 102, and compares the current block generation time with the block connection time. When the current zone When the block generation time exceeds the block connection time, the recording node 102 extracts the identification value to be queried corresponding to the target ending block corresponding to the current block contained in the current block, and the recording node 102 changes the identification value to be queried Is the pre-stored target value, and then the recording node 102 calculates the target identification value corresponding to the current block according to the target value and the data to be recorded, and changes the current identification value to the target identification value so that the current block is the initial block and is based on the initial Block generation updates the blockchain, where the recording node 102 and the endorsing node 104 can use independent servers, and the blockchain system 100 can be a distributed storage system that includes different nodes, and can connect blocks generated by different nodes. Form a blockchain.

In one of the embodiments, as shown in FIG. 2, a data storage method is provided. Taking the method applied to the recording node 102 in FIG. 1 as an example for description, the method includes the following steps:

S202: Store the data to be recorded in the current block, where the current block includes the block generation time and the current identification value corresponding to the current block.

Specifically, the data to be recorded refers to data that needs to be stored in the blockchain to avoid data tampering. The data to be recorded can be corresponding business data, transaction data, insurance data, or environmental data. The block generation time refers to the specific time of recording the generated blocks included in the block generated by the node, that is, according to the time, different blocks can be connected in sequence to generate a blockchain. The current identification value refers to the identification value calculated from the stored data and the information of the blocks that need to be connected to each other in the current block according to the corresponding encryption algorithm. It may be that the current identification value is the recording node according to the hash algorithm and The current hash value corresponding to the current block obtained by calculating the data to be recorded and the hash value of the block to be connected, where the block to be connected can be the ending block of different blockchains stored in the blockchain system .

Specifically, the recording node in the blockchain system receives the block generation instruction, and executes the query according to the block generation to the current system time, and then the recording node queries the ending block in all the stored blockchains as the pending connection Block, and then the recording node can extract the generation time of the block to be connected from different blocks to be connected, and then the recording node calculates the difference according to the generation time of the block to be connected and the instruction receiving time of the block generation instruction received, and select The block to be connected with the smallest difference is regarded as the target end block, and then the recording node can first query the detailed data contained in the target end block, and calculate the end hash value of the target end block. According to the end hash value and the waiting block To record data, the recording node uses a hash algorithm to calculate the current identification value corresponding to the current block, and then when the recording node stores the data to be recorded in the current block and calculates the current identification value, it can also record the current system time as the block Generation time. Therefore, the recording node in the blockchain system stores the data to be recorded in the current block. The current block includes the block generation time and the current identification value corresponding to the current block. Among them, the record node refers to the node included in the blockchain system that can record data. It can be that the record node is the node included in the blockchain system to generate different blocks, so that the generated block is sent to the endorsement node Endorsement is performed, that is, sent to the endorsing node for verification.

S204: Query the target ending block associated with the current block, and extract the current blockchain according to the target ending block.

Specifically, the target end block refers to the block with the smallest difference between the generation time and the current system time that receives the block generation instruction, which is selected from the end blocks contained in different stored blockchains. The current block chain refers to the block chain that is stored in different nodes in the block chain system and queries whether the current block is connected to the end block according to the block connection time range.

Specifically, the recording node in the blockchain system queries the selected target end block as the target end block associated with the current block according to the received block generation instruction time, and then selects the block containing the target end block The chain is the current blockchain. It can be that the recording node in the blockchain system extracts the ending block from all the stored blockchains as the block to be connected, and then the recording node calculates the difference between the generation time of the block to be connected and the instruction receiving time. The block to be connected with the smallest difference is selected as the target ending block, so the recording node queries the target ending block associated with the current associated block, and the recording node uses the blockchain containing the target ending block as the current blockchain .

S206: Obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range.

Specifically, the block connection time range refers to the time range of the block stored in the current blockchain, that is, only when the current block generation time is within this time range, can the current block be compared with the current block chain. The target ending block is connected. Specifically, the recording node in the blockchain system obtains the block connection time range corresponding to the current blockchain, and then the current block generation time of the current block obtained by the recording node storing the data to be recorded will query the current zone Whether the block generation time is within the block connection time range.

It can be that the recording node in the blockchain system obtains the initial block contained in the current blockchain, queries the initial block generation time of the initial block, and then the recording node extracts the year information according to the initial block generation time. The year information obtains the block connection time range of the current blockchain, and then records whether the node queries whether the current block generation time is within the block connection time range. For example, the recording node queries the initial block contained in the current blockchain, and then extracts the initial block generation time of the initial block, and the recording node extracts the year information from the initial block generation time, then the year information is Block connection time range, that is, the year information extracted by the recording node from the initial block generation time corresponding to the initial block is 2018, and the block connection time range of the current blockchain obtained by the recording node is 2018 From January 2010 to December 2018, the record node in the blockchain system queries whether the current block generation time falls within the current blockchain block connection time range.

S208: When the current block generation time is not within the block connection time range, extract the identification value to be queried corresponding to the target ending block contained in the current block.

Specifically, the identification value to be queried refers to the end block hash value corresponding to the end block, that is, the end block hash value generated by the recording node that records the end block according to the corresponding encryption algorithm. Specifically, when the record node in the blockchain system queries that the current block generation time is not within the block connection time range, it queries the pending block contained in the current block and corresponds to the target ending block of the current blockchain. Query the identification value.

It can be that when the record node in the blockchain system finds that the block generation time is not within the block connection time range, the current block needs to be used as the initial block, that is, the block needs to be stored in a new area In the blockchain, the record node in the blockchain system queries the field to be queried that is contained in the current block and corresponds to the target ending block of the current blockchain, and then the record node in the blockchain system queries the pending field. The corresponding hash value in the query field is used as the identification value to be queried. For example, when the recording node in the blockchain system queries that the block generation time is not within the block connection time range, the recording node queries the current block corresponding to the target ending block of the current blockchain. The query field, that is, the indication that the current block is queried, the hash value of the target ending block can be found, such as "pre hash", and the blockchain system can query the corresponding hash through the field to be queried The value is the identification value to be queried.

S210: Change the identification value to be queried to a pre-stored target value, and calculate the target identification value corresponding to the current block according to the target value and the data to be recorded.

Specifically, the target value refers to the preset value of the hash value of the ending block contained in the current block as the initial block when the current block is the initial block, and the target value is pre-stored in different nodes The default value. The target identification value refers to the hash value of the current block obtained by recalculating the hash value of the ending block in the current block. Specifically, when the record node in the blockchain system finds that the block generation time of the current block is not within the block connection time range corresponding to the current block chain, the current block does not need to be connected to the current block chain. The ending blockchain, that is, the current block needs to be used as the initial block, that is, the record node in the blockchain system queries the identification value to be queried in the current block, and then queries the pre-stored in the record node, and The target value corresponding to the initial block, change the identification value to be queried to the target value, and then the recording node can directly calculate the hash value corresponding to the current block according to the encryption algorithm, according to the modified target value and the data to be recorded, as the target identification value .

For example, if the record node in the blockchain system finds that the block generation time of the current block is January 2019, and the block connection time range is from January 2018 to December 2018, the block generation time of the current block is If the time is not within the range of the block connection, the current block is used as the initial block to generate a new block chain. The block generation time of the block in the new block chain is from January 2019 to December 2019 Therefore, if the current block is used as the initial block, the hash value of the target ending block contained in the current block is changed according to the pre-stored target value. If the target value is 0, the hash value of the target ending block will be changed. The hope value is changed to 0, and then the record node in the blockchain system can use a hash algorithm, such as the SHA-256 algorithm (secure hash algorithm) for calculation, to obtain the hash value of the current block as the initial block, as Target identification value. It should be noted that the hash algorithm can also use other algorithms, such as the SHA-512, SHA-224 algorithm, or MD algorithm in the secure hash algorithm.

S212: Change the current identification value to the target identification value, so that the current block is used as the initial block, and generate and update the blockchain according to the initial block.

Specifically, updating the block chain refers to a new block chain whose block connection time is different from the different block chains stored in the block chain system. When the recording node changes the current identification value to the target identification value, the current block is used as the initial block, and the recording node in the blockchain system will change the current identification value contained in the current block to the target identification value. The current block is used as the initial block, and according to the generation time of the initial block, the update block connection time range corresponding to the update block chain is obtained. When the block chain system generates a new block through the recording node, it can be based on The generation time of the new block is connected with the initial block to generate a new block chain.

In this embodiment, in the process of storing data, not all data is generated according to the traditional block chain in a unified connection to generate a single block chain to avoid low processing efficiency when the amount of data is too large , Can improve processing efficiency, and avoid the need to upgrade hardware products in order to improve processing efficiency, and save costs. In addition, because the data to be recorded will involve different business data, such as environmental data, environmental data is used for environmental monitoring. The single-chain method of storage causes a large amount of unused data cannot be deleted, so the applicability is not strong, and storage according to the block connection time can enhance the applicability.

In one of the embodiments, please refer to Figure 3, which provides a schematic flow diagram of the block deletion step. The block deletion step is to change the current identification value to the target identification value, so that the current block is used as the initial block, and according to the initial block Block generation After updating the blockchain, it includes: extracting the blockchain generation time corresponding to different blockchains and obtaining the current system time; calculating the data storage duration according to the blockchain generation time and the current system time; when the data storage duration exceeds When the preset duration is set, the block to be deleted corresponding to the data storage duration exceeding the preset duration is queried, and the block to be deleted is deleted.

Specifically, the block chain generation time refers to the generation time of different block chains stored in the block chain system, and the block chain generation time may be a detailed year, etc. Data storage duration is the length of time that different blockchains are stored in the blockchain system. Blocks to be deleted refer to different blocks included in the blockchain whose data storage time exceeds the preset time.

Specifically, different blockchains stored in different nodes in the blockchain system correspond to the block connection time range, the block chain generation time represented by the block connection time range is extracted, and the record node in the blockchain system obtains Store the block chain generation time of different block chains, and obtain the current system time, and then calculate the difference between the block chain generation time of different block chains and the current system time. The difference is the data storage time, and then The record node in the blockchain system obtains the pre-stored preset duration, compares the data storage duration with the preset duration, selects the blockchain whose data storage duration exceeds the preset duration, and includes the blockchain As the block to be deleted, the block to be deleted is deleted.

It can be that the record node in the blockchain system obtains the block connection time range corresponding to different blockchains. For example, the block connection time range corresponding to the four blockchains is obtained. The block connection time range is January 2015. To December 2015, January 2016 to December 2016, January 2017 to December 2017 and January 2018 to December 2018, and then extract each blockchain according to the time range of the block connection The corresponding block chain generation time can be obtained according to the year information contained in the block connection time range. For example, the block chain generation time is 2015, 2016, 2017 and 2018, and then the district The record node in the blockchain system obtains the current system time as 2019, and the record node in the blockchain system calculates the data storage duration based on the generation time of different blockchains and the current system time, that is, the data storage duration of the aforementioned blockchain Respectively 4 years, 3 years, 2 years and 1 year, the record node in the blockchain system obtains the preset duration, which is 3 years, and then compares the data storage duration with the preset duration. When the data is stored When the duration exceeds the preset duration, the block in the blockchain is regarded as the block to be deleted, and the block to be deleted is deleted. Moreover, in this embodiment, different nodes in the blockchain system may store blockchains at different times, and the preset duration may be set according to different application scenarios.

In this embodiment, the recording node in the blockchain system stores different blockchains according to the corresponding storage time. The recording node in the blockchain system can calculate the data storage duration according to the generation time of the blockchain and the current system time. When the data storage duration exceeds the preset duration, the query data storage duration exceeds the to-be-deleted block corresponding to the preset duration, and the to-be-deleted block is deleted, that is, the space resource can be stored.

In one of the embodiments, you can continue to refer to Figure 3, query the block to be deleted corresponding to the data storage duration exceeding the preset duration, and delete the block to be deleted, including: query the data storage duration corresponding to the data storage duration exceeding the preset duration The initial block to be deleted is searched for the related block to be deleted connected to the initial block to be deleted; the initial block to be deleted and the related block to be deleted are deleted.

Specifically, the initial block to be deleted refers to the initial block in the blockchain corresponding to the data storage duration exceeding the preset duration. The associated block to be deleted refers to a different block connected to the initial block sequence in the blockchain corresponding to the data storage duration exceeding the preset duration. Specifically, when the record node in the blockchain system queries that the data storage duration corresponding to the different blockchains for storage exceeds the preset duration, query the to-be-deleted blockchain corresponding to the data storage duration that exceeds the preset duration , And then query the initial block to be deleted contained in the blockchain to be deleted, and then query other blocks connected to the initial block to be deleted according to the initial block to be deleted, and the other connected blocks are related blocks to be deleted , And then use the initial block to be deleted and the associated block to be deleted as the block to be deleted, and delete the block to be deleted.

It can be that when the record node in the blockchain system queries that the storage duration of the data corresponding to different blockchains in the storage exceeds the preset duration, then query the blockchain to be deleted corresponding to the data storage duration that exceeds the preset duration. Then query the field to be queried contained in the block chain to be deleted, and then query the block whose identification value to be queried corresponding to the field to be queried is the target value as the initial block to be deleted, and then query the target identification corresponding to the initial block to be queried Value, the next block is queried according to the target identification value, until the end block contained in the blockchain to be deleted is queried, then all the blocks queried sequentially according to the target identification value are regarded as the associated blocks to be deleted, and then The initial block to be deleted and the associated block to be deleted are deleted.

For example, when the record node in the blockchain system queries that the storage duration of data corresponding to different blockchains exceeds the preset duration, it will query the blockchain to be deleted corresponding to the data storage duration that exceeds the preset duration, then Query the query field of the previous block contained in each block in the blockchain to be deleted, and then query the field to be queried, such as "pre hash", and then query the hash value corresponding to the field to be queried. When the block with a hash value of 0 corresponding to this field is queried as the initial block to be deleted, the record node in the blockchain system queries the hash value of the current block corresponding to the initial block to be deleted, and then queries Other blocks in the block chain to be deleted contain the hash value of the current block as the next block, until the end block of the block chain to be deleted is queried, and the hash value corresponding to the initial block to be deleted The related block found by the value query is regarded as the related block to be deleted, and both the initial block to be deleted and the related block to be deleted are deleted.

In this embodiment, the recording node in the blockchain system can delete the blockchain whose data storage duration exceeds the preset duration, avoiding the need to expand storage resources and thus the need to continuously upgrade hardware products and reduce costs.

In one of the embodiments, referring to Figure 3, after querying the associated block to be deleted connected to the initial block to be deleted, it includes: obtaining the first generation time contained in the associated block to be deleted, and obtaining the initial The second generation time included in the block; determine whether the difference between the first generation time and the second generation time is within the preset difference range; when the difference is not within the preset difference range, output verification information.

Specifically, the first generation time refers to the generation time of the block included in the associated block to be deleted. The second generation time refers to the generation time of the block included in the initial block to be deleted. When the record node in the blockchain system finds the associated block to be deleted, it needs to verify again whether it is the to-be-deleted block. When the record node in the blockchain system queries the to-be-deleted associated block, it obtains the to-be-deleted association The first generation time included in the block, and then the second generation time included in the initial block to be deleted is obtained, and the difference between the first generation time and the second generation time is calculated, and when the difference is obtained, the difference is queried Whether it is within the preset difference range, when it is within the preset difference range, the associated block to be deleted can be used as the block to be deleted together with the initial block to be deleted, when the difference is not within the preset difference range When the time, the corresponding check information is output, and you can check whether the wrong block is found.

For example, the preset time range can be within 1 year, then the first generation time contained in the associated block to be deleted is obtained, and the second generation time contained in the initial block to be deleted is obtained, then the first generation time and the first generation time are calculated. 2. Generate the difference in time and query whether the difference is within the preset time range. When it is within the preset time range, the associated block to be deleted can be deleted as the block to be deleted together with the initial block to be deleted , When it is not within the preset time range, the corresponding verification information is output. The verification information can output the block identification value of the related block to be deleted within the preset time range, etc., query whether the wrong block is queried, etc. .

In addition, when the record node in the blockchain system queries the initial block to be deleted and the associated block to be deleted, it obtains the first generation time corresponding to the associated block to be deleted, and obtains the location of the initial block to be deleted. The second generation time is calculated according to the first generation time and the current system time to obtain the storage duration of the associated block, query whether the storage duration of the associated block exceeds the preset time, and then calculate the initial area based on the second generation time and the current system time Block storage duration, and query whether the initial block storage duration exceeds the preset duration, and then when the associated block storage duration and the initial block storage duration exceed the preset duration, then calculate the first generation time and the second generation time The difference, when any one of the associated block storage duration and the initial block storage duration exceeds the preset duration, the verification information is directly output, such as the corresponding block identification.

In this embodiment, when the recording node in the blockchain system selects the initial block to be deleted and the associated block to be deleted, further verification can be performed to ensure the accuracy of the blockchain deletion.

In one of the embodiments, obtaining the block connection time range corresponding to the current blockchain, and querying whether the block generation time is after the current block connection time range, includes: when the current block generation time is within the block connection time When it is within the range, the target end block in the current blockchain corresponding to the current block connection time range is obtained; the current block is connected with the target end block.

In one of the embodiments, connecting the current block with the target ending block includes: sending the current block to the endorsing node for verification; receiving the verification result of the endorsing node verifying the current block; when the verification result is verification When passed, the current block is connected with the target ending block.

In one of the embodiments, obtaining the block connection time range corresponding to the current blockchain and querying whether the current block generation time is within the block connection time range includes: when the current block generation time is within the block connection time When it is within the range, the target ending block in the current blockchain corresponding to the current block connection time range is obtained: the current block is sent to the endorsing node through the recording node for verification; the endorsing node is received by the recording node to perform the current block The verification result of the verification; when the verification result is passed, the current block is connected with the target ending block.

Specifically, the endorsing node refers to the node server included in the blockchain system that can verify and sign the generated block. When the generated block is endorsed by the endorsing node, the block can be combined with The ending block in the block chain to be connected is connected, that is, the current block enters the chain.

Specifically, when the recording node in the blockchain system finds that the block generation time is within the block connection time range, the current block can be directly connected to the current blockchain. The recording node in the blockchain system obtains the target ending block in the current blockchain. The recording node generates the current block according to the data to be recorded and the identification to be queried. The current block contains the current identification value, and the current block Generation time and data to be recorded, etc., query the current block generation time within the block connection time range, the recording node will send the generated current block to the endorsing node, and when the endorsing node receives the current block, it will get it through the endorsing node Go to the identity of the recording node and query whether the identity is a trusted identity, that is, the identity can be matched with a pre-stored trusted identity. When the matching is successful, the identity of the recording node is acceptable The verification logic of the data to be recorded is obtained through the endorsement node, such as whether the query data contains false data, etc., the data to be recorded is verified by the verification logic to be recorded, and then the verification logic of the recording node The data verification generates the verification result, that is, when the identification of the recording node and the data to be recorded are verified, the verification result is passed. When the verification result is verified, the recording node connects the current block with the target ending block, and That is, the target ending block points to the current block, and the current block is used as the ending block in the current blockchain.

In this embodiment, when the block generation time is within the block connection time range, the current block can be connected to the ending block, and the current block needs to be verified by the endorsement node before the connection, so as to ensure the generation The accuracy and security of the block.

In one of the embodiments, the following takes the storage of environmental protection data as an example. Among them, for the blockchain system, different node servers may be included, such as the server corresponding to the recording node, and the server corresponding to the recording node may be different The server of the environmental protection agency, the server corresponding to the enterprise that monitors environmental data, can also be regarded as the environmental protection agency record node and the enterprise record node. The corresponding data can be the environmental data of the monitored enterprise. In addition, the blockchain system can also Contains the server corresponding to the endorsement node to endorse the environmental data of the monitored enterprise.

Specifically, the enterprise record node records and detects the corresponding environmental data as an example for further explanation. The enterprise record node generates the current block according to the environmental data. The current block can contain the block generation time and the end block that needs to be connected. The hash value and the hash value of the current block, and the enterprise record node included in the blockchain system can query the block connection time range corresponding to the current block chain. For example, the block connection time range is from January 2018 to In December 2018, that is, when the current block generation time is within this time range, the connection is made. The enterprise record node queries that the current block generation time is January 1, 2019, and the block generation time is not in the zone. Within the block connection time range, the current block needs to be stored in the new blockchain, so the hash value of the ending block in the current block is modified to 0, so that the hash value of the current block is recalculated. The current block is used as the initial block to generate an update block chain, and the block connection time range corresponding to the update block chain is from January 2019 to December 2019.

When generating and updating the blockchain, the enterprise record node can query the blockchains that store different environmental protection times, that is, query different blockchain generation times. The blockchain generation time can be based on the block connection time range The year of the data storage is determined, and the data storage duration is calculated according to the current system time and the generation time of the blockchain, and then the entire blockchain whose data storage duration exceeds the preset duration is deleted, such as the entire blockchain whose data storage duration exceeds 3 years To delete, that is, due to the real-time nature of environmental protection data, the reference value of environmental protection data over 3 years is low. When the blockchain system deletes the corresponding blockchain, you can first query the corresponding initial block to be deleted. Then query the related block to be deleted, and verify whether the generation time difference between the related block to be deleted and the initial block to be deleted is within the preset time range, for example, whether it is within the year corresponding to the block chain generation time. In the year corresponding to the block chain generation time, the associated block to be deleted and the initial block to be deleted are deleted as the block to be deleted.

In addition, for example, when the block generation time of the current block queried by the enterprise record node is March 2018, then the block generation time is within the block connection time range, and the block can be directly connected to the block time The target ending block in the blockchain ranging from January 2018 to December 2018 is connected, and before the connection, the enterprise record node can verify the current block through the endorsement node, such as verifying whether the environmental protection data contained therein There is fraud, such as environmental protection data with repeated date data, etc., to verify whether the identity of the recording node is a credible and true identity. When the verification is passed, the current block can be connected to the end block. It should be noted that the data in this embodiment may also be business data of other services to be processed.

It should be understood that, although the various steps in the flowchart of FIGS. 2-3 are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless specifically stated in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least some of the steps in Figure 2-3 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. These sub-steps or stages The execution order of is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.

In one of the embodiments, as shown in FIG. 4, a data storage device is provided, including: a current block receiving module 410, a first obtaining module 420, a second obtaining module 430, a calculation module 440, and a modification module 450, among them:

The current block receiving module 410 is configured to store the data to be recorded in the current block. The current block includes the generation time of the current block and the current identification value corresponding to the current block.

The extraction module 420 is used for querying the target ending block associated with the current block, and extracting the current blockchain according to the target ending block.

The first obtaining module 430 is configured to obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range.

The second obtaining module 440 is configured to obtain the identification value to be queried corresponding to the target ending block contained in the current block when the current block generation time is not within the block connection time range.

The calculation module 450 is configured to change the identification value to be queried into a pre-stored target value, and calculate the target identification value corresponding to the current block according to the target value and the data to be recorded.

The modification module 460 is used to change the current identification value to the target identification value, so that the current block is used as the initial block, and the block chain is generated and updated according to the initial block.

In one of the embodiments, the data storage device 400 may further include:

The extraction module is used to extract the block chain generation time corresponding to different block chains and obtain the current system time.

The duration calculation module is used to calculate the data storage duration according to the generation time of the blockchain and the current system time.

The delete module is used to query the block to be deleted corresponding to the data storage duration exceeding the preset time when the data storage duration exceeds the preset duration, and delete the block to be deleted.

In one of the embodiments, deleting the module includes:

The query unit is used to query the initial block to be deleted corresponding to the data storage duration exceeding the preset time length, and query the associated block to be deleted connected to the initial block to be deleted.

The deleting unit is used to delete the initial block to be deleted and the associated block to be deleted.

In one of the embodiments, the deletion unit may include:

The time obtaining subunit is used to obtain the first generation time contained in the associated block to be deleted, and obtain the second generation time contained in the initial block to be deleted.

The judging subunit is used to judge whether the difference between the first generation time and the second generation time is within a preset difference range.

The output subunit is used to output the verification information when the difference is not within the preset difference range.

In one of the embodiments, the data storage device 400 may further include:

The end block obtaining module is used to obtain the target end block in the current blockchain corresponding to the current block connection time range when the current block generation time is within the block connection time range.

The connection module is used to connect the current block with the target ending block.

In one of the embodiments, the connection module may include:

The verification result receiving unit is used to send the current block to the endorsement node for verification. It is also used to receive the verification result that the endorsing node verifies the current block.

The connecting unit is used to connect the current block with the target ending block when the verification result is passed.

For the specific definition of the data storage device, please refer to the above definition of the data storage method, which will not be repeated here. Each module in the above-mentioned data storage device can be implemented in whole or in part by software, hardware, and a combination thereof. The foregoing modules may be embedded in the form of hardware or independent of the processor in the computer device, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the foregoing modules.

In one of the embodiments, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. 5. The computer equipment includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor of the computer device is used to provide calculation and control capabilities. The memory of the computer device includes a non-volatile or volatile storage medium and internal memory. The non-volatile or volatile storage medium stores an operating system, computer readable instructions, and a database. The internal memory provides an environment for the operation of the operating system and computer-readable instructions in the non-volatile storage medium. The computer equipment database is used to store data. The network interface of the computer equipment is used to communicate with external terminals through a network connection. The computer-readable instructions are executed by the processor to realize a data storage method.

Those skilled in the art can understand that the structure shown in FIG. 5 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may Including more or fewer parts than shown in the figure, or combining some parts, or having a different arrangement of parts.

A computer device including a memory and one or more processors, and computer-readable instructions are stored in the memory. When the computer-readable instructions are executed by the processor, the one or more processors perform the following steps: store data to be recorded To the current block, the current block contains the generation time of the current block and the current identification value corresponding to the current block. Query the target ending block associated with the current block, and extract the current blockchain based on the target ending block. Get the block connection time range corresponding to the current blockchain, and query whether the current block generation time is within the block connection time range. When the current block generation time is not within the block connection time range, the identification value to be queried corresponding to the target ending block contained in the current block is obtained. The identification value to be queried is changed to the target value, and the target identification value corresponding to the current block is calculated according to the target value and the data to be recorded. And change the current identification value to the target identification value, make the current block as the initial block, and generate and update the blockchain based on the initial block.

In one of the embodiments, when the processor executes the computer-readable instruction, the current identification value is changed to the target identification value, so that the current block is used as the initial block, and after the block chain is generated and updated according to the initial block, it includes: extracting Blockchain generation time corresponding to different blockchains, and get the current system time. Calculate the data storage duration based on the generation time of the blockchain and the current system time. When the data storage duration exceeds the preset duration, the block to be deleted corresponding to the data storage duration exceeding the preset duration is queried, and the block to be deleted is deleted.

In one of the embodiments, when the processor executes the computer-readable instructions, the processor can query the block to be deleted corresponding to the data storage duration that exceeds the preset duration, and delete the block to be deleted, including: querying the data that exceeds the preset duration The initial block to be deleted corresponding to the storage duration is stored, and the associated block to be deleted connected to the initial block to be deleted is queried. And delete the initial block to be deleted and the associated block to be deleted.

In one of the embodiments, after the processor executes the computer-readable instruction to query the associated block to be deleted connected to the initial block to be deleted, the method includes: obtaining the first generation time contained in the associated block to be deleted, and obtaining The second generation time contained in the initial block to be deleted. It is determined whether the difference between the first generation time and the second generation time is within a preset difference range. And when the difference is not within the preset difference range, the verification information is output.

In one of the embodiments, when the processor executes the computer-readable instructions, it obtains the block connection time range corresponding to the current blockchain, and queries whether the current block generation time is after the block connection time range, including: When the block generation time is within the block connection time range, the target ending block in the current blockchain corresponding to the current block connection time range is obtained. And connect the current block with the target ending block.

In one of the embodiments, when the processor executes the computer-readable instruction, the connection between the current block and the target ending block includes: sending the current block to the endorsing node for verification. Receive the verification result of the endorsement node verifying the current block. And when the verification result is that the verification is passed, the current block is connected with the target ending block.

One or more computer-readable storage media storing computer-readable instructions. When the computer-readable instructions are executed by one or more processors, the one or more processors execute the following steps: store the data to be recorded in the current area Block, the current block contains the current block generation time and the current identification value corresponding to the current block. Query the target ending block associated with the current block, and extract the current blockchain based on the target ending block. Get the block connection time range corresponding to the current blockchain, and query whether the current block generation time is within the block connection time range. When the current block generation time is not within the block connection time range, the identification value to be queried corresponding to the target ending block contained in the current block is obtained. The identification value to be queried is changed to a pre-stored target value, and the target identification value corresponding to the current block is calculated according to the target value and the data to be recorded. And change the current identification value to the target identification value, make the current block as the initial block, and generate and update the blockchain based on the initial block.

In one of the embodiments, when the computer-readable instruction is executed by the processor, the current identification value is changed to the target identification value, so that the current block is used as the initial block, and after the block chain is generated and updated according to the initial block, it includes: Extract the block chain generation time corresponding to different block chains, and get the current system time. Calculate the data storage duration based on the generation time of the blockchain and the current system time. And when the data storage duration exceeds the preset duration, the block to be deleted corresponding to the data storage duration exceeding the preset duration is queried, and the block to be deleted is deleted.

In one of the embodiments, when the computer-readable instruction is executed by the processor, the query block to be deleted corresponding to the data storage duration exceeding the preset duration is realized, and the block to be deleted is deleted, including: querying the block to be deleted that exceeds the preset duration The initial block to be deleted corresponding to the data storage time, and the related block to be deleted connected to the initial block to be deleted is queried. And delete the initial block to be deleted and the associated block to be deleted.

In one of the embodiments, after the computer-readable instruction is executed by the processor to query the associated block to be deleted connected to the initial block to be deleted, the method includes: obtaining the first generation time included in the associated block to be deleted, and Obtain the second generation time contained in the initial block to be deleted. It is determined whether the difference between the first generation time and the second generation time is within a preset difference range. And when the difference is not within the preset difference range, the verification information is output.

In one of the embodiments, when the computer-readable instructions are executed by the processor, the block connection time range corresponding to the current blockchain is obtained, and the query whether the current block generation time is within the block connection time range, including: When the current block generation time is within the block connection time range, the target end block in the current blockchain corresponding to the current block connection time range is obtained. And connect the current block with the target ending block.

In one of the embodiments, when the computer-readable instruction is executed by the processor, the connection between the current block and the end block is realized, including: sending the current block to the endorsing node for verification. Receive the verification result of the endorsement node verifying the current block. And when the verification result is that the verification is passed, the current block is connected with the target ending block.

Persons of ordinary skill in the art can understand that all or part of the processes in the methods of the foregoing embodiments can be implemented by instructing relevant hardware through computer-readable instructions. The computer-readable instructions can be stored in a computer-readable storage. In the medium, when the computer-readable instructions are executed, they may include the processes of the foregoing method embodiments. Wherein, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and/or volatile memory. Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not a limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, they should It is considered as the range described in this specification.

The above-mentioned embodiments only express a few implementation modes of the present application, and their description is relatively specific and detailed, but they should not be understood as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A data storage method, including:

Storing the data to be recorded in a current block, the current block including the current block generation time and the current identification value corresponding to the current block;

Query the target ending block associated with the current block, and extract the current blockchain according to the target ending block;

Obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range;

When the current block generation time is not within the block connection time range, acquiring the identification value to be queried corresponding to the target end block included in the current block;

Changing the identification value to be queried to a pre-stored target value, and calculating the target identification value corresponding to the current block according to the target value and the data to be recorded; and

The current identification value is changed to the target identification value, so that the current block is used as an initial block, and an update blockchain is generated according to the initial block.
The method according to claim 1, wherein the changing the current identification value to the target identification value makes the current block an initial block, and an update blockchain is generated according to the initial block After that, the method further includes:

Extract the block chain generation time corresponding to different block chains, and obtain the current system time;

Calculate the data storage duration according to the generation time of the blockchain and the current system time; and

When the data storage duration exceeds the preset duration, query the block to be deleted corresponding to the data storage duration that exceeds the preset duration, and delete the block to be deleted.
The method according to claim 2, wherein the querying the block to be deleted corresponding to the data storage duration exceeding the preset duration, and deleting the block to be deleted comprises:

Query the initial block to be deleted corresponding to the data storage duration that exceeds the preset duration, and query the associated block to be deleted connected to the initial block to be deleted; and

The initial block to be deleted and the associated block to be deleted are deleted.
The method according to claim 3, wherein, after the query of the associated block to be deleted connected to the initial block to be deleted, the method further comprises:

Obtaining the first generation time contained in the associated block to be deleted, and obtaining the second generation time contained in the initial block to be deleted;

Determine whether the difference between the first generation time and the second generation time is within a preset difference range; and

When the difference value is not within the preset difference value range, output verification information.
The method according to claim 1, wherein said obtaining the block connection time range corresponding to the current block chain, and querying whether the current block generation time is after the block connection time range, The method also includes:

When the current block generation time is within the block connection time range, acquiring the target end block in the current blockchain corresponding to the current block connection time range; and

Connecting the current block with the target ending block.
The method according to claim 5, wherein the connecting the current block with the target ending block comprises:

Sending the current block to the endorsing node for verification;

Receiving the verification result of the endorsing node verifying the current block; and

When the verification result is that the verification is passed, the current block is connected with the target ending block.
A data storage device includes:

The current block receiving module is configured to store the data to be recorded in the current block, the current block including the generation time of the current block and the current identification value corresponding to the current block;

The extraction module is used to query the target ending block associated with the current block, and extract the current blockchain according to the target ending block;

The first obtaining module is configured to obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range;

The second obtaining module is configured to obtain the identification value to be queried corresponding to the target ending block contained in the current block when the current block generation time is not within the block connection time range;

A calculation module, configured to change the identification value to be queried into a pre-stored target value, and calculate the target identification value corresponding to the current block according to the target value and the data to be recorded; and

The modification module is used to change the current identification value to the target identification value, so that the current block is used as the initial block, and an update blockchain is generated according to the initial block.
The device according to claim 7, wherein the data storage device comprises:

The extraction module is used to extract the block chain generation time corresponding to different block chains, and obtain the current system time;

The duration calculation module is used to calculate the data storage duration according to the generation time of the blockchain and the current system time; and

The deleting module is configured to, when the data storage duration exceeds the preset duration, query the block to be deleted corresponding to the data storage duration exceeding the preset duration, and delete the block to be deleted.
A computer device includes a memory and one or more processors. The memory stores computer-readable instructions. When the computer-readable instructions are executed by the one or more processors, the one or more Each processor performs the following steps:

Storing the data to be recorded in a current block, the current block including the current block generation time and the current identification value corresponding to the current block;

Query the target ending block associated with the current block, and extract the current blockchain according to the target ending block;

Obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range;

When the current block generation time is not within the block connection time range, acquiring the identification value to be queried corresponding to the target end block included in the current block;

Changing the identification value to be queried to a pre-stored target value, and calculating the target identification value corresponding to the current block according to the target value and the data to be recorded; and

The current identification value is changed to the target identification value, so that the current block is used as the initial block, and an update blockchain is generated according to the initial block.
The computer device according to claim 9, wherein the processor further executes the following steps when executing the computer readable instruction:

Extract the block chain generation time corresponding to different block chains, and obtain the current system time;

Calculate the data storage duration according to the generation time of the blockchain and the current system time; and

When the data storage duration exceeds the preset duration, query the block to be deleted corresponding to the data storage duration that exceeds the preset duration, and delete the block to be deleted.
The computer device according to claim 10, wherein the processor further executes the following steps when executing the computer-readable instructions:

Query the initial block to be deleted corresponding to the data storage duration that exceeds the preset duration, and query the associated block to be deleted connected to the initial block to be deleted; and

The initial block to be deleted and the associated block to be deleted are deleted.
The computer device according to claim 11, wherein the processor further executes the following steps when executing the computer readable instruction:

Obtaining the first generation time contained in the associated block to be deleted, and obtaining the second generation time contained in the initial block to be deleted;

Determine whether the difference between the first generation time and the second generation time is within a preset difference range; and

When the difference value is not within the preset difference value range, output verification information.
The computer device according to claim 9, wherein the processor further executes the following steps when executing the computer readable instruction:

When the current block generation time is within the block connection time range, acquiring the target end block in the current blockchain corresponding to the current block connection time range; and

Connecting the current block with the target ending block.
The computer device according to claim 13, wherein the processor further executes the following steps when executing the computer readable instruction:

Sending the current block to the endorsing node for verification;

Receiving the verification result of the endorsing node verifying the current block; and

When the verification result is that the verification is passed, the current block is connected with the target ending block.
One or more computer-readable storage media storing computer-readable instructions, which when executed by one or more processors, cause the one or more processors to perform the following steps:

Storing the data to be recorded in a current block, the current block including the current block generation time and the current identification value corresponding to the current block;

Query the target ending block associated with the current block, and extract the current blockchain according to the target ending block;

Obtain the block connection time range corresponding to the current block chain, and query whether the current block generation time is within the block connection time range;

When the current block generation time is not within the block connection time range, acquiring the identification value to be queried corresponding to the target ending block contained in the current block;

Changing the identification value to be queried to a pre-stored target value, and calculating the target identification value corresponding to the current block according to the target value and the data to be recorded; and

The current identification value is changed to the target identification value, so that the current block is used as an initial block, and an update blockchain is generated according to the initial block.
The storage medium according to claim 15, wherein the following steps are further performed when the computer-readable instructions are executed by the processor:

Extract the block chain generation time corresponding to different block chains, and obtain the current system time;

Calculate the data storage duration according to the generation time of the blockchain and the current system time; and

When the data storage duration exceeds the preset duration, query the block to be deleted corresponding to the data storage duration that exceeds the preset duration, and delete the block to be deleted.
The storage medium according to claim 16, wherein the following steps are further performed when the computer-readable instructions are executed by the processor:

Query the initial block to be deleted corresponding to the data storage duration that exceeds the preset duration, and query the associated block to be deleted connected to the initial block to be deleted; and

The initial block to be deleted and the associated block to be deleted are deleted.
The storage medium according to claim 17, wherein the following steps are further performed when the computer-readable instructions are executed by the processor:

Obtaining the first generation time contained in the associated block to be deleted, and obtaining the second generation time contained in the initial block to be deleted;

Determine whether the difference between the first generation time and the second generation time is within a preset difference range; and

When the difference value is not within the preset difference value range, output verification information.
The storage medium according to claim 15, wherein the following steps are further performed when the computer-readable instructions are executed by the processor:

When the current block generation time is within the block connection time range, acquiring the target end block in the current blockchain corresponding to the current block connection time range; and

Connecting the current block with the target ending block.
The storage medium according to claim 19, wherein the following steps are further performed when the computer-readable instructions are executed by the processor:

Sending the current block to the endorsing node for verification;

Receiving the verification result of the endorsing node verifying the current block; and

When the verification result is that the verification is passed, the current block is connected with the target ending block.