CN116662453A - Blockchain-based digital asset storage method - Google Patents

Abstract

The invention relates to the technical field of computers, in particular to a digital asset storage method based on a blockchain, which comprises the following steps: receiving uplink data, and acquiring a latest data block corresponding to the uplink data stored on a blockchain network; determining difference data according to the uplink data and the latest data block; calculating the data quantity of the difference data, and determining the number n of the needed nodes according to the calculated data quantity; acquiring historical data of uplink data, and determining a historical storage node according to the historical data; selecting n storage nodes from a blockchain network according to the history storage nodes; the difference data is uploaded to the selected n storage nodes. The invention determines the difference data, only updates and stores the difference data, and reduces the occupation of the block; meanwhile, the occupation of the whole block network is further reduced by selecting storage nodes and distributing storage capacity, and the storage of digital assets is optimized.

Description

Blockchain-based digital asset storage method

technical field

The invention relates to the field of computer technology, in particular to a blockchain-based digital asset storage method.

Background technique

Blockchain is a decentralized distributed storage technology. It uses network consensus algorithms to realize mutual recognition of information, and uses distributed storage to solve data security problems caused by data concentration. It can solve many of the current centralized storage technologies. question.

According to different forms, assets can be divided into tangible assets and intangible assets. Intangible assets include patents, franchises, goodwill, trademarks, trade names, and software. Most intangible assets are stored in the form of data information. In order to ensure the security of digital assets, using blockchain technology to store digital assets is an optimal option at present.

However, when using blockchain technology to store digital assets, due to frequent changes in digital asset data, there are many and complicated data to be uploaded to the chain, which consumes a lot of storage resources on the blockchain network. How to use blockchain technology to store digital assets while reducing the storage occupation of the blockchain network is a problem that needs to be solved.

Contents of the invention

Based on this, it is necessary to provide a blockchain-based digital asset storage method for the above-mentioned problems.

The present invention is achieved in this way, a method for storing digital assets based on blockchain, the method for storing digital assets based on blockchain includes:

Receive the uplink data, and obtain the latest data block corresponding to the uplink data stored on the blockchain network;

Determine difference data according to the uplink data and the latest data block;

Calculate the data volume of the difference data, and determine the required number of nodes n according to the calculated data volume;

Obtain the historical data of the uplink data, and determine the historical storage node according to the historical data;

Selecting n storage nodes from the blockchain network according to the historical storage nodes;

Upload the difference data to the selected n storage nodes.

Compared with the prior art, the present invention has the following beneficial effects: by determining the difference data, only the difference data is updated and stored, which reduces the block occupation; at the same time, by selecting storage nodes and allocating storage capacity, the occupation of the entire block network is further reduced , optimizing the storage of digital assets. Different from the whole network storage method of the general block chain technology, the present invention uses the block chain network at the same time, each time the storage update of the data is carried out on different storage node combinations, realizing the distribution of storage blocks, and at the same time reducing The storage space required by the node is reduced, and the storage occupancy of the optimized blockchain network is reduced.

Description of drawings

Fig. 1 is a flowchart of a blockchain-based digital asset storage method provided in an embodiment;

Fig. 2 is a block diagram of the internal structure of a computer device in one embodiment.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

It can be understood that the terms "first", "second" and the like used in the present invention may be used to describe various elements herein, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first xx script could be termed a second xx script, and, similarly, a second xx script could be termed a first xx script, without departing from the scope of the present invention.

As shown in Figure 1, in one embodiment, a blockchain-based digital asset storage method is proposed, and the blockchain-based digital asset storage method includes:

Receive the uplink data, and obtain the latest data block corresponding to the uplink data stored on the blockchain network;

Determine difference data according to the uplink data and the latest data block;

Calculate the data volume of the difference data, and determine the required number of nodes n according to the calculated data volume;

Obtain the historical data of the uplink data, and determine the historical storage node according to the historical data;

Selecting n storage nodes from the blockchain network according to the historical storage nodes;

Upload the difference data to the selected n storage nodes.

In this embodiment, for digital assets, the on-chain data mainly includes information such as the name, number, status, and attribution of the digital assets, all of which exist in the form of digitization. Usually, these data are packaged to generate a data packet. After receiving the data packet that needs to be uploaded to the chain, the local upload node optimizes the chain storage process of digital assets by executing the storage method provided by the present invention.

In this embodiment, it can be understood that the latest data block corresponding to the on-chain data stored on the blockchain network refers to a data block on the blockchain network that belongs to the same data asset as the data to be on-chain. In the blockchain network, data is stored in the form of data blocks. The data blocks here are essentially data packets, which are called data blocks only because they are used on the blockchain network.

In this embodiment, the difference data is determined according to the uplink data and the latest data block, and the determined difference data is uploaded. This method reduces the amount of data that needs to be uploaded, and reduces the occupation of the storage resources of the blockchain network by the uploaded data.

In this embodiment, after the amount of data to be uploaded is determined, the required number of nodes is determined according to the amount of data, and some storage nodes are selected from historical storage nodes and unused nodes to store difference data. The present invention utilizes the basic principle of the block chain network to realize the local block storage mode on the block chain network, which reduces the occupation of block chain network resources by the same piece of data.

Compared with the prior art, the present invention has the following beneficial effects: by determining the difference data, only the difference data is updated and stored, which reduces the block occupation; at the same time, by selecting storage nodes and allocating storage capacity, the occupation of the entire block network is further reduced , optimizing the storage of digital assets. Different from the whole network storage method of the general block chain technology, the present invention uses the block chain network at the same time, each time the storage update of the data is carried out on different storage node combinations, realizing the distribution of storage blocks, and at the same time reducing The storage space required by the node is reduced, and the storage occupancy of the optimized blockchain network is reduced.

As an optional solution of the present invention, the determining difference data according to the uplink data and the latest data block includes:

According to the digital asset type corresponding to the uplink data, call the corresponding division template;

According to the called template, the contents of the uplink data and the latest data block are divided;

Compare the results of the on-chain data and the latest data content division, and determine the difference items and the difference content of each difference item;

Extract difference items and difference content in difference items, and pack the extraction results to generate difference data.

In this embodiment, for each type of digital asset, a corresponding division template is preset. The division template consists of several items and item content. The specific item type corresponds to the type of digital asset. For example, for patent assets, Items can include bibliographic items such as patent name, patent number, publication number, etc.

In this embodiment, according to the called template, the uplink data and the latest data block are respectively filled into the division module to obtain two templates filled with content, and then the two templates filled with content are compared to find the difference Items and determine the content of difference items, ignore the same content, and reduce the amount of data that needs to be stored.

As an optional solution of the present invention, the determination of the required number of nodes n according to the calculated amount of data includes:

Determine the minimum and maximum capacity of each data block;

Select an intermediate value based on the determined minimum capacity and maximum capacity;

The required number of nodes n is obtained from the ratio of the calculated data amount of the difference data to the intermediate value.

In this embodiment, the minimum capacity and maximum capacity of each data block belong to the basic parameters of the blockchain network, which are used to standardize the storage of data blocks, which can be directly obtained from the management node of the blockchain network or the local upload node acquisition, which is not described in detail in the present invention.

As an optional solution of the present invention, the acquiring historical data of the uplink data, and determining the historical storage node according to the historical data include:

Extract the asset identifier from the on-chain data;

Query the on-chain record from the directory item of the storage node according to the asset identifier;

The historical storage nodes storing the digital assets corresponding to the uplink data are determined from the uplink records.

In this embodiment, the asset identifier may be information such as asset name and code name that can uniquely locate the digital asset. The uplink information is recorded in the management node. Local nodes (nodes that need to upload data) can query the uplink record of the corresponding asset and the basic information on which nodes the data is stored by visiting the management node.

As an optional solution of the present invention, the selection of n storage nodes from the blockchain network according to the historical storage nodes includes:

Select n1 historical storage nodes from the blockchain network according to the set ratio a;

According to the set ratio b, select n2 storage nodes from the area chain network that do not store the asset data corresponding to the on-chain data;

where a+b=1, n1+n2=n, and , /> The amount of storage required for the i-th historical storage node, /> is the storage capacity required by the jth storage node that does not store the asset data corresponding to the uplink data, /> is the amount of difference data.

In this embodiment, a and b are set constants, usually a and b can be between 0.4-0.6. It can be understood that n1=n*a; n2=n*b.

As an optional solution of the present invention, the required number n1 of historical storage nodes is obtained by multiplying the total amount of storage nodes n and the set ratio a;

Obtain the data volume of asset data corresponding to the uplink data stored by all historical storage nodes, and select n1 historical storage nodes from all historical storage nodes according to the acquired stored data volume;

Allocate the storage ratio for the selected historical storage node.

In this embodiment, instead of storing all the data in all historical nodes, some historical storage nodes are selected from some historical storage nodes for data storage, so as to realize distributed storage within the blockchain network, without allowing certain Each node stores all the data, but uses the entire network for decentralized storage. For each part of the decentralized storage, multiple nodes are used for storage. The basic principle of the blockchain network is used, and improvements and optimizations are made on this basis.

As an optional solution of the present invention, the selection of n1 historical storage nodes from all historical storage nodes according to the acquired stored data volume includes:

Sort each historical storage node from high to low according to the amount of stored data;

The sorting is divided into n1 segments, and a historical storage node is randomly selected from each segment to obtain n1 historical storage nodes.

In this embodiment, the number of nodes in each segment is kept as consistent as possible during division, so as to ensure the randomness of selection.

As an optional solution of the present invention, the allocation of storage ratios for selected historical storage nodes includes:

Calculate the average storage capacity of each segment;

The storage ratio of each historical storage node is obtained by using the average storage capacity of the segment where the selected historical storage node is located as the distribution coefficient.

In this embodiment, it can be understood that the storage capacity ratio of each historical storage node can be obtained after the average storage capacity is normalized. This is a common data processing method, which will not be described in detail in the present invention.

As an optional solution of the present invention, uploading the difference data to the selected n storage nodes also includes:

The amount of data stored by the historical storage node is determined from the difference data according to a set ratio.

In this embodiment, the difference data can be stored in the history storage node and the newly selected node according to the ratio of 50%, and the specific value of this ratio will not affect the effect of the present invention, which is not specifically limited in the present invention.

Figure 2 shows a diagram of the internal structure of a computer device in one embodiment. As shown in FIG. 2 , the computer equipment includes a processor, a memory, a network interface, an input device, and a display screen connected through a system bus. Wherein, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program. When the computer program is executed by the processor, the processor can realize the blockchain-based digital asset storage provided by the embodiment of the present invention. method. A computer program may also be stored in the internal memory, and when the computer program is executed by the processor, the processor may execute the blockchain-based digital asset storage method provided by the embodiment of the present invention. The display screen of the computer equipment may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment may be a touch layer covered on the display screen, or a button, a trackball or a touch pad provided on the casing of the computer equipment, or It can be an external keyboard, touchpad or mouse.

Those skilled in the art can understand that the structure shown in Figure 2 is only a block diagram of a partial structure related to the solution of the present invention, and does not constitute a limitation to the computer equipment on which the solution of the present invention is applied. The specific computer equipment can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components.

In one embodiment, a computer device is provided, the computer device includes a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executes the computer The following steps are implemented in the program:

Receive the uplink data, and obtain the latest data block corresponding to the uplink data stored on the blockchain network;

determining difference data according to the uplink data and the latest data block;

Calculate the data volume of the difference data, and determine the required number of nodes n according to the calculated data volume;

Obtain the historical data of the uplink data, and determine the historical storage node according to the historical data;

Selecting n storage nodes from the blockchain network according to the historical storage nodes;

Upload the difference data to the selected n storage nodes.

In one embodiment, a computer-readable storage medium is provided. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the processor is made to perform the following steps:

Receive the uplink data, and obtain the latest data block corresponding to the uplink data stored on the blockchain network;

Determine difference data according to the uplink data and the latest data block;

Calculate the data volume of the difference data, and determine the required number of nodes n according to the calculated data volume;

Obtain the historical data of the uplink data, and determine the historical storage node according to the historical data;

Selecting n storage nodes from the blockchain network according to the historical storage nodes;

Upload the difference data to the selected n storage nodes.

It should be understood that although the various steps in the flow charts of the embodiments of the present invention are shown sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in each embodiment may include multiple sub-steps or multiple stages, these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, the sub-steps or stages The order of execution 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.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a non-volatile computer-readable storage medium When the program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any reference to memory, storage, database or other media used in the various embodiments provided by the present invention may include non-volatile and/or volatile memory. Nonvolatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not 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 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-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (9)

1. A blockchain-based digital asset storage method, the blockchain-based digital asset storage method comprising:

receiving uplink data, and acquiring a latest data block corresponding to the uplink data stored on a blockchain network;

determining difference data according to the uplink data and the latest data block;

calculating the data quantity of the difference data, and determining the number n of the needed nodes according to the calculated data quantity;

acquiring historical data of uplink data, and determining a historical storage node according to the historical data;

selecting n storage nodes from a blockchain network according to the history storage nodes;

the difference data is uploaded to the selected n storage nodes.

2. The blockchain-based digital asset storage method of claim 1, wherein the determining difference data from the uplink data and the latest data block comprises:

calling a corresponding dividing template according to the digital asset type corresponding to the uplink data;

respectively dividing the content of the uplink data and the latest data block according to the called template;

comparing the uplink data with the latest data content division result to determine difference items and difference contents of the difference items;

and extracting the difference item and the difference content in the difference item, and packaging the extraction result to generate difference data.

3. The blockchain-based digital asset storage method of claim 1, wherein the determining the required number of nodes n based on the calculated amount of data comprises:

determining a minimum capacity and a maximum capacity of each data block;

selecting an intermediate value according to the determined minimum capacity and maximum capacity;

and obtaining the needed node number n from the ratio of the calculated data quantity of the difference data to the intermediate value.

4. The blockchain-based digital asset storage method of claim 1, wherein the acquiring historical data of the uplink data, determining a historian storage node from the historical data, comprises:

extracting asset identification from the uplink data;

inquiring a uplink record from a catalog item of a storage node according to the asset identification;

and determining a history storage node for storing the digital asset corresponding to the uplink data by the uplink record.

5. The blockchain-based digital asset storage method of claim 1, wherein the selecting n storage nodes from a blockchain network according to the historic storage nodes comprises:

selecting n1 history storage nodes from the blockchain network according to the set proportion a;

selecting n2 storage nodes which do not store asset data corresponding to the uplink data from a regional chain network according to the set proportion b;

wherein a+b=1, n1+n2=n, and，/>memory required for the ith history storage node, +.>For the j-th storage amount required by the storage node not storing the asset data corresponding to the uplink data,/the storage amount required by the storage node is->Is the data amount of the difference data.

6. The blockchain-based digital asset storage method of claim 5, wherein the selecting n1 historian storage nodes from the blockchain network according to the set proportion a comprises:

obtaining the number n1 of the needed history storage nodes by the product of the set total number n of the storage nodes and the set proportion a;

acquiring the data quantity of the asset data which is stored by all the history storage nodes and corresponds to the uplink data, and selecting n1 history storage nodes from all the history storage nodes according to the acquired stored data quantity;

and distributing a storage proportion for the selected history storage node.

7. The blockchain-based digital asset storage method of claim 6, wherein the selecting n1 history storage nodes from all history storage nodes based on the amount of stored data acquired comprises:

ordering the history storage nodes from high to low according to the stored data volume;

dividing the ordering into n1 segments, and randomly selecting one history storage node from each segment to obtain n1 history storage nodes.

8. The blockchain-based digital asset storage method of claim 7, wherein the assigning storage proportions to the selected historian storage nodes comprises:

calculating an average storage amount of each segment;

and taking the average storage capacity of the segment where the selected history storage node is located as the distribution coefficient to obtain the storage proportion of each history storage node.

9. The blockchain-based digital asset storage method of claim 1, wherein the uploading of differential data to the selected n storage nodes further comprises:

the amount of data stored by the history storage node is determined from the difference data according to the set proportion.