WO2020000770A1

WO2020000770A1 - Block chain-based method and apparatus for querying pledge information, and computer device

Info

Publication number: WO2020000770A1
Application number: PCT/CN2018/109667
Authority: WO
Inventors: 万晓辉
Original assignee: 平安科技（深圳）有限公司
Priority date: 2018-06-28
Filing date: 2018-10-10
Publication date: 2020-01-02
Also published as: CN109242481A

Abstract

Embodiments of the present application relate to the technical field of communications, and provided are a block chain-based method and apparatus for querying pledge information, and a computer device. By using the traceable and non-tampering characteristics of information of a block chain, the problem of property loss of both parties of a transaction caused by untrue and unreliable pledge information is fundamentally solved. The method comprises: first, obtaining pledge information sent by an information source, and packaging the pledge information as a block; next, uploading the block to a block chain; then, receiving a pledge information query request of a requestor, and verifying query authority of the requestor to obtain a verification result; and accordingly, outputting pledge information corresponding to the verification result according to the verification result.

Description

Method, device and computer equipment for querying pledge information based on blockchain

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 28, 2018, with application number 201810687326.4, and the invention name is "blockchain-based method, device and computer equipment for querying pledge information", the entire contents of which are incorporated by reference Incorporated in this application.

Technical field

The present application relates to the field of communication technology, and in particular, to a method, a device, and a computer device for querying pledge information based on a blockchain.

Background technique

Pledges, usually in the form of pawns, are given to pawn shops. Traditional pledge transactions are mainly transactions between pledged property holders and financial business companies, and centralized management of pledge information.

Traditional such pledged transactions have no third-party supervision throughout the transaction process. Pledged information can be tampered with and deleted in various ways, and the authenticity and reliability of the pledged information is poor. Therefore, in the traditional pledge transaction business, there are multiple collaterals such as real estate, vehicles, land, etc. in different banks, financial business companies, etc., resulting in property loss of both parties to the pledge transaction.

Therefore, how to ensure the authenticity and reliability of the pledged information in the process of pledged transactions is an urgent problem to be solved.

Application content

In view of this, the embodiments of the present application provide a method, device, and computer equipment for querying pledge information based on the blockchain. The use of the characteristics of blockchain information to trace back and cannot be tampered with, fundamentally solves the problem that the pledge information is not authentic and reliable And cause the property loss of both parties to the transaction.

In a first aspect, an embodiment of the present application provides a method for querying pledge information based on a blockchain. The method includes:

Obtaining the pledge information sent by the information source, and packaging the pledge information into blocks;

Upload the block to the blockchain;

Receiving a pledge information query request from a requester, verifying the query authority of the requester, and obtaining a verification result;

According to the verification result, pledge information corresponding to the verification result is output.

In a second aspect, the present application provides a device for querying pledge information based on a blockchain. The device includes:

A processing unit, configured to obtain the pledge information sent by the information source, and package the pledge information into blocks;

A transmission unit for uploading the block to a blockchain;

A verification unit, configured to receive the requested pledge information query request, verify the query authority of the requester, and obtain a verification result;

An output unit is configured to output pledge information corresponding to the verification result according to the verification result.

According to a third aspect, the present application provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the first Steps of the method for querying pledge information based on a blockchain according to any one of the aspects.

According to a fourth aspect, the present application provides a computer non-volatile readable storage medium including computer-readable instructions. When the computer reads and executes the computer-readable instructions, the computer is caused to execute any one of the first aspects. Steps of the method for querying pledge information based on the blockchain.

In the technical solution provided in the embodiments of the present application, the pledged information in the blockchain is stored decentralized and distributed to each node, which is open. Part of the information in the blockchain is open to all nodes, and the information is highly transparent. The pledged information uploaded to the blockchain is stored in a chain after cryptographic processing. The information is traceable but cannot be tampered with, thereby ensuring the authenticity and reliability of the pledged information on the blockchain. In addition, when querying the pledged information, First verify the sender's verification of the sender's verification request for querying pledge information. Based on the verification result, output the corresponding pledge information. By setting the pledge information in the blockchain, you can set the query permission. According to the different query permissions, output the corresponding The pledged information further guarantees that the pledged information will not be tampered with maliciously, and the security of the pledged information is guaranteed. This application makes use of the highly transparent and immutable information of the blockchain and the authority function set to fundamentally solve the problem of property loss of both parties to the transaction due to the untrue and reliable pledged information.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings based on these drawings without paying creative labor.

FIG. 1 is a schematic flowchart of a method for querying pledge information based on a blockchain according to an embodiment of the present application;

2 is a schematic flowchart of another method for querying pledge information based on a blockchain according to an embodiment of the present application;

3 is a schematic flowchart of another method for querying pledge information based on a blockchain according to an embodiment of the present application;

4 is a schematic flowchart of another method for querying pledge information based on a blockchain according to an embodiment of the present application;

5 is a functional block diagram of a device for querying pledge information based on a blockchain according to an embodiment of the present application;

FIG. 6 is a functional block diagram of another blockchain-based query pledge information device according to an embodiment of the present application; FIG.

FIG. 7 is a block diagram of a computer device according to an embodiment of the present application.

detailed description

In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

In order to solve the problem that the pledged information can be tampered and deleted, which makes the transaction information poor in reliability, which leads to the property loss of both parties to the pledged transaction, this application proposes a method for querying pledged information based on the blockchain. As shown,

The method for querying pledge information based on the blockchain provided in this application includes:

102. Obtain the pledge information sent by the information source, and package the pledge information into blocks.

Among them, the pledge information involved in this application may include, but is not limited to: pledger information, fund provider information, pledged item information, pledged item evaluation value, value evaluation date, evaluation agency information, pledged date, pledged item pledge number, etc.

104. Upload the block to a blockchain.

After the block is generated and packaged, the block is broadcasted on the entire network, so that all nodes in the block chain can receive the block, thereby achieving decentralized and distributed storage to ensure that when the block chain is After any of the nodes fail, they can run through other non-fault nodes.

Among them, the nodes in the above-mentioned blockchain may include, but are not limited to, various financial business companies, banks, vehicle management bureaus, housing management bureaus, and the like. If the nodes in the above blockchain only include various financial business companies, banks, vehicle management bureaus, housing management bureaus and other financial institutions, the blockchain is an industry alliance chain; if the above blockchain also includes individuals, the The blockchain is a public chain. Among them, the alliance chain is a model for reaching alliances between companies and companies, organizations and organizations. Related companies or organizations want to join or launch the alliance chain only after authorization. The public chain is developed for anyone, and everyone can participate in the public chain.

For example, after a relevant financial institution joins the alliance chain as a node, it needs to follow the alliance's data sharing regulations and upload its own pledged data to the alliance chain. At the same time, the node obtains certain permissions to query other pledged data in the alliance chain, so that it can Realize the sharing of pledged data to avoid multiple pledges.

106. Receive a pledge information query request from the requester, verify the query authority of the requester, and obtain a verification result.

In this application, the block chain stores user identity information and the configuration relationship of query authority. The implementation of step 106 may be: obtaining the identity information of the requester; and using the identity information with the configuration relationship in the block chain. The comparison is performed to find the query authority corresponding to the identity information, and then the query authority of the requester is determined.

The following uses the public chain scenario as an example to introduce the implementation process of step 106.

The public chain includes financial management institutions and individuals, and the configuration relationship of the query authority specified by the public chain is: financial institutions have the highest query authority and can query all pledged information recorded in the public chain; individuals have the lowest query authority, Allows to query the pledge information related to itself recorded in this public chain. Based on this, the implementation of step 106 is: first, the identity information of the requester is parsed from the pledged information query request, for example, the identity information is a digital signature of the requester, and then, whether the identity information is a financial institution or an individual, If the requester is identified as a financial institution, it is determined that the requester has the highest query authority; if the requestor is identified as an individual, it is determined that the requester has the lowest query authority, and only the user's own pledge information can be queried.

108. According to the verification result, output pledge information corresponding to the verification result.

In order to avoid the leakage of private information and other people's malicious access to important data, by setting the query authority, you can query the pledge information only after obtaining the query authority; if you do not authorize the query authority, you will not be able to query the pledge information, thereby further ensuring the information Safety and reliability.

In a specific embodiment, the pledge information includes authority part information and public part information. Among them, the authority part information may include some private information, important data generated during the pledge transaction, etc. These authority part information can be queried only after being authorized. The public part of the information includes some summary information, which can be queried by all participants in the blockchain. Specifically, when verifying that the node has the query authority, output the authority part information and the public part information to the node; if the query authority is not authorized, you can only view the public part information, that is, when verifying that the node does not have the query authority, only to the node The node outputs public information.

In the technical solution provided in the embodiments of the present application, the pledged information in the blockchain is stored decentralized and distributed to each node, which is open. Part of the information in the blockchain is open to all nodes, and the information is highly transparent. The pledged information uploaded to the blockchain is stored in a chain after cryptographic processing. The information is traceable but cannot be tampered with, thereby ensuring the authenticity and reliability of the pledged information on the blockchain. In addition, when querying the pledged information, First, verify the sender's verification of the sender's verification request for querying the pledged information. Based on the verification result, output the corresponding pledged information. By setting the pledged information in the blockchain with the querying authority, according to the different querying authority, output the corresponding The pledged information further guarantees that the pledged information will not be tampered with maliciously, and the security of the pledged information is guaranteed. This application makes use of the highly transparent and immutable information of the blockchain and the authority function set to fundamentally solve the problem of property loss of both parties to the transaction due to the untrue and reliable pledged information.

Further, in combination with the above method, in order to facilitate quickly knowing whether the pledge corresponding to the pledge information can be pledged, this application provides an implementation manner, as shown in FIG. 2, in step 108 according to the verification result, the output and the verification are output. After the pledge information corresponding to the result, the method further includes:

109A. Determine the number of pledges corresponding to the pledge information according to the pledge information.

Specifically, the pledge information sent by the information source includes information on the number of pledges corresponding to the pledge. Therefore, after obtaining the pledge information from the blockchain, the pledge information is parsed from the pledge information to include the information on the number of pledges to obtain the pledge. Corresponding number of pledges. Alternatively, if the pledge information sent by the information source does not include the number of pledges, after obtaining the pledge information from the blockchain, a statistical algorithm can be used to count the pledge dates contained in the pledge information, so that the pledges can be obtained according to statistics. The number of dates, and this number is determined as the corresponding number of pledges.

109B. When the number of pledges is greater than 1, determine whether the pledged object corresponding to the pledge information meets a preset multiple pledge condition according to the pledge information, and obtain a judgment result.

It should be noted that the preset multiple pledge conditions are determined by relevant laws and / or related policies. When the relevant laws or policies change, the corresponding preset multiple pledge conditions also change accordingly. Based on this, the preset multiple pledge conditions in this application can be that the personnel of the relevant department always pay attention to relevant laws or related policies, and then enter the corresponding preset multiple pledge conditions in time; or, the preset multiple pledge conditions in this application can also be The execution subject is obtained through arithmetic processing according to the relevant laws and / or related policies collected in real time.

In this application, when the number of pledges is greater than 1, it indicates that the pledge corresponding to the pledge information has been pledged multiple times. Therefore, in order to avoid economic disputes between the transaction parties in this transaction, the pledge date and funds provided in the pledge information can be provided. Information such as party information, pledged loan repayment situation, total amount of pledged loans, etc., to determine whether it meets the preset multiple pledge conditions, and trigger the corresponding operation based on the judgment result obtained after the judgment operation is performed.

109C. According to the judgment result, output corresponding prompt information.

It is determined that the pledged object does not meet the preset multiple pledge conditions, and the first prompt information is output, wherein the first reminder information is mainly used to prompt that the pledged object cannot be pledged again; if based on the pledge information and preset multiple pledge conditions, it is determined that When the pledge corresponding to the pledge information meets the preset multiple pledge conditions, a second prompt message is output, and the second prompt information is mainly used to prompt permission to be pledged again.

Further, in order to prevent users from tampering with the information in the blockchain, for the implementation of step 102, this application proposes another implementation manner. The flowchart is shown in FIG. 3,

Step 102 specifically includes:

1021: Obtain the pledge information sent by the information source.

1022. Obtain the existence certificate and time stamp of the pledge information.

Among them, the existence proof of the pledge information is a hash value or a digest value of the pledge information. Specifically, the existence proof of the pledged information is obtained by using a hash algorithm to map a binary value corresponding to the pledged information to a fixed-length binary value, and the fixed-length binary value is a hash value.

Among them, the time stamp is a character sequence used to identify the transaction time, which is unique and is the authentication of each transaction record. Specifically, the time stamp is obtained as follows: the current time is obtained, and the current time is used as the time stamp.

What needs to be explained here is that the existence proof of the pledge information and the time stamp obtaining process have no logical sequence. The existence proof of the pledge information and the timestamp can be obtained simultaneously; or the existence proof of the pledge information can be obtained first. Secondly, get the timestamp; or, you can get the timestamp first, and then get the existence proof of the pledged information.

In addition, the existence proof of the pledged information is that the hash value has unique and compact data. Even if a piece of information changes only one letter of the information, the hash value obtained by processing the hash algorithm will be different. Therefore, the existence of the pledged information and the uniqueness of the timestamp are used to realize the tamperability of the pledged information and ensure the authenticity and reliability of the pledged information.

1023. Generate a block according to the pledge information, a proof of existence of the pledge information, and a time stamp.

A block includes a block header and a block body. The existence proof, time stamp and other information of the pledge information are added to the block header, and all transaction records generated during the creation of the block, that is, the pledge information is encapsulated in the block body.

Further, in order to avoid the problem of inaccurate pledge information caused by uploading illegal pledge information, the present application further provides another implementation manner. The flowchart is shown in FIG. 4. The method uploads the block to the district during execution. Before the blockchain, this also included:

103. Verify whether the block is valid.

In a specific embodiment, a digital signature is a value encrypted using a public key. The value is unique and can be used to confirm identity information. Therefore, verifying whether a block is valid can be done by verifying the signature of the block. Determine whether the block is valid. When the signature of the block is verified, the block is valid; when the signature of the block is not verified, the block is invalid.

In another specific embodiment, the validity of the block is verified by a digital certificate. Among them, the digital certificate is also a series of numbers that identify the identity information of each node in the blockchain. It can be used to identify the legality of the data. The validity of the block can be verified by verifying the digital certificate. When the digital certificate passes the verification, It means that the block is valid; when the digital certificate fails to verify, it means that the block is invalid.

In combination with the above two specific embodiments, by verifying the digital signature or digital certificate of the block, the identity of the person who uploaded the block can be identified, thereby determining whether the identity of the person who uploaded the block is legal, and whether the block is illegally uploaded.

104. If the block is verified to be valid, upload the area to the blockchain.

After verifying that the block is valid, it indicates that the information in the block is authentic and reliable, allowing the block to be uploaded to the blockchain, and because the blockchain is a chain storage structure connected in chronological order, Therefore, the block will be added to the end of the blockchain.

It is added that if the verification of the block is invalid, indicating that there is inaccurate information in the block, the block will not be uploaded to the blockchain. In addition, in order to facilitate users to know whether the block was successfully uploaded to the blockchain, after verifying that the block is invalid, it can also output a prompt message that the block is invalid, or a prompt message that the block illegal upload failed.

In combination with the above-mentioned method for querying pledge information based on the blockchain, the present application further provides a device for implementing each step in the above method.

Please refer to FIG. 5, which is a functional block diagram of a blockchain-based query pledge information device provided by this application. The device specifically includes:

A processing unit 21, configured to obtain pledge information sent by an information source, and package the pledge information into blocks;

A transmission unit 22, configured to upload the block to a blockchain;

The verification unit 23 is configured to receive a pledged information query request from a requester, verify the query authority of the requester, and obtain a verification result. The blockchain stores the user identity information and the configuration relationship of the query authority, and the requestor is received. The pledged information query request to verify the query authority of the requester and obtain the verification result includes: parsing the identity information of the requester from the pledged information query request; according to the identity information of the requester and the configuration Relationship to determine the query authority of the requester.

The output unit 24 is configured to output pledge information corresponding to the verification result according to the verification result.

Optionally, as shown in FIG. 6, the device in this application further includes:

A determining unit 25, configured to determine the number of pledges corresponding to the pledge information according to the pledge information;

A judging unit 26, configured to determine whether the pledged object corresponding to the pledge information meets a preset multiple pledge condition when the number of pledges is greater than one, and obtain a judgment result according to the pledge information;

The output unit 24 is further configured to output corresponding prompt information according to the determination result.

Optionally, the processing unit 21 in this application is specifically configured to:

Obtain the pledge information sent by the information source;

Obtaining the existence proof and time stamp of the pledge information;

Generate a block according to the pledge information, a proof of existence of the pledge information, and a time stamp.

Optionally, in this application,

The verification unit 23 is further configured to verify whether the block is valid. Wherein, the verification unit may be specifically used to verify the digital signature of the block when verifying whether the block is valid; or it may be used to verify the digital certificate of the block.

It should be noted that the above-mentioned device can implement the steps in the method for querying pledge information based on the blockchain proposed by the present application. For the specific description of the above-mentioned method for executing the method for querying the pledge information based on the blockchain, please refer to the above description of Relevant descriptions of the chain query pledge information method.

In the technical solution proposed in this application, the pledged information in the blockchain is stored decentralized and distributed to each node, which is open. Part of the information in the blockchain is open to all nodes. The information is highly transparent and uploaded to The pledged information on the blockchain is stored in a chain after cryptographic processing. The information is traceable but cannot be tampered with, thereby ensuring the authenticity and reliability of the pledged information on the blockchain. In addition, when querying the pledged information, The sender who sends the pledge information query request verifies the query authority. Based on the verification result, the corresponding pledge information is output. The query authority is set for the pledge information in the blockchain. According to the query authority, the corresponding pledge information is output. , Thereby further ensuring that the pledged information will not be tampered with maliciously, and the security of the pledged information is guaranteed. This application makes use of the highly transparent and immutable information of the blockchain and the authority function set to fundamentally solve the problem of property loss of both parties to the transaction due to the untrue and reliable pledged information.

Please refer to FIG. 7, which is a block diagram of a computer device provided by the present application. As shown in FIG. 7, the computer device includes a memory 31, a processor 32, and stored in the memory 31 and can be processed in the process. A computer program running on the processor 32, and when the processor 32 executes the computer program, any one of the foregoing methods for querying pledge information based on a blockchain is implemented.

This application proposes a technical solution. The pledged information in the blockchain is decentralized and distributed to each node. It is open. Part of the information in the blockchain is open to all nodes. The information is highly transparent and uploaded to the district. The pledged information on the blockchain is stored in a chain after cryptographic processing. The information is traceable but cannot be tampered with, thereby ensuring the authenticity and reliability of the pledged information on the blockchain. In addition, when querying the pledged information, The sender of the pledge information query request verifies the permission of the query. Based on the verification result, the corresponding pledge information is output. By setting the query permission on the pledge information in the blockchain, the corresponding pledge information is output according to the different query permissions. Thereby, it is further ensured that the pledged information cannot be maliciously tampered with, and the security of the pledged information is guaranteed. This application makes use of the highly transparent and immutable information of the blockchain and the authority function set to fundamentally solve the problem of property loss of both parties to the transaction due to the untrue and reliable pledged information.

This application provides a computer non-volatile readable storage medium, including computer-readable instructions. When the computer reads and executes the computer-readable instructions, the computer is caused to execute the method according to any one of the foregoing.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

Claims

A method for querying pledge information based on a blockchain is characterized in that the method includes:

Obtaining pledge information from an information source, and packaging the pledge information into blocks;

Upload the block to the blockchain;

Receiving a pledge information query request from a requester, verifying the query authority of the requester, and obtaining a verification result;

According to the verification result, pledge information corresponding to the verification result is output.
The method according to claim 1, wherein after the output of pledge information corresponding to the verification result according to the verification result, the method further comprises:

Determining the number of pledges corresponding to the pledge information according to the pledge information;

When the number of pledges is greater than 1, judging whether the pledge corresponding to the pledge information meets the preset multiple pledge conditions according to the pledge information, and obtain a judgment result;

According to the determination result, corresponding prompt information is output.
The method according to claim 1, wherein the obtaining the pledge information of the information source and packaging the pledge information into blocks comprises:

Obtaining pledge information of the information source;

Obtaining the existence proof and time stamp of the pledge information;

Generating the block according to the pledge information, the existence certificate of the pledge information, and a time stamp.
The method according to claim 1, wherein before the uploading the block to a blockchain, the method further comprises:

Verify the digital signature of the block to determine whether the block is valid; or,

Verify the digital certificate of the block to determine if the block is valid.
The method according to claim 1, characterized in that the block chain stores user identity information and a configuration relationship of query authority, and receives a request for a pledge information query from a requester, and verifies the query authority of the requester To get verification results, including:

Parse the identity information of the requester from the pledge information query request;

Determining the query authority of the requester according to the identity information of the requester and the configuration relationship.
A device for querying pledge information based on a blockchain is characterized in that the device includes:

A processing unit, configured to obtain the pledge information sent by the information source, and package the pledge information into blocks;

A transmission unit for uploading the block to a blockchain;

A verification unit, configured to receive a pledge information query request from a requester, verify the query authority of the requester, and obtain a verification result;

An output unit is configured to output pledge information corresponding to the verification result according to the verification result.
The device according to claim 6, further comprising:

A determining unit, configured to determine the number of pledges corresponding to the pledge information according to the pledge information;

A judging unit, configured to determine whether the pledged object corresponding to the pledge information meets preset preset pledge conditions and obtain a judgment result when the number of pledges is greater than one;

The output unit is further configured to output corresponding prompt information according to the determination result.
The apparatus according to claim 6, wherein the processing unit is specifically configured to:

Obtaining the pledge information sent by the information source;

Obtaining the existence proof and time stamp of the pledge information;

Generating the block according to the pledge information, the existence certificate of the pledge information, and a time stamp.
The device according to claim 6, wherein:

The verification unit is further configured to verify the digital signature of the block to determine whether the block is valid; or verify the digital certificate of the block to determine whether the block is valid.
The device according to claim 6, wherein the block chain stores user identity information and a configuration relationship of query authority, and the verification unit is specifically configured to:

Parse the identity information of the requester from the pledge information query request;

Determining the query authority of the requester according to the identity information of the requester and the configuration relationship.
A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program,

The processor is configured to obtain pledge information from an information source and package the pledge information into blocks;

The processor is further configured to upload the block to a blockchain;

The processor is further configured to receive a pledge information query request from a requester, verify the query authority of the requester, and obtain a verification result;

The processor is further configured to output pledge information corresponding to the verification result according to the verification result.
The computer device according to claim 11, wherein after the output of the pledge information corresponding to the verification result according to the verification result, the processor is further configured to execute:

Determining the number of pledges corresponding to the pledge information according to the pledge information;

When the number of pledges is greater than 1, judging whether the pledge corresponding to the pledge information meets the preset multiple pledge conditions according to the pledge information, and obtain a judgment result;

According to the determination result, corresponding prompt information is output.
The computer device according to claim 11, wherein when the processor is configured to obtain pledge information from an information source and package the pledge information into blocks, the processor specifically executes:

Obtaining pledge information of the information source;

Obtaining the existence proof and time stamp of the pledge information;

Generating the block according to the pledge information, the existence certificate of the pledge information, and a time stamp.
The computer device according to claim 11, wherein before the uploading the block to a blockchain, the processor is further configured to:

Verify the digital signature of the block to determine whether the block is valid; or,

Verify the digital certificate of the block to determine if the block is valid.
The device according to claim 11, wherein the block chain stores user identity information and a configuration relationship of query authority, and the processing unit is configured to receive a pledge information query request from a requester and verify the request The query authority of the user, when the verification result is obtained, the specific execution is performed:

Parse the identity information of the requester from the pledge information query request;

Determining the query authority of the requester according to the identity information of the requester and the configuration relationship.
A computer non-volatile readable storage medium has a computer program stored thereon, which is characterized in that when the program is executed by a processor, the following steps are implemented:

Obtaining pledge information from an information source, and packaging the pledge information into blocks;

Upload the block to the blockchain;

Receiving a pledge information query request from a requester, verifying the query authority of the requester, and obtaining a verification result;

According to the verification result, pledge information corresponding to the verification result is output.
The computer non-volatile readable storage medium according to claim 16, wherein after the output of pledge information corresponding to the verification result according to the verification result, the computer program is executed by a processor , The following steps are also implemented:

Determining the number of pledges corresponding to the pledge information according to the pledge information;

When the number of pledges is greater than 1, judging whether the pledge corresponding to the pledge information meets the preset multiple pledge conditions according to the pledge information, and obtain a judgment result;

According to the determination result, corresponding prompt information is output.
The computer non-volatile readable storage medium according to claim 16, wherein the obtaining the pledge information of the information source and packaging the pledge information into blocks comprises:

Obtaining pledge information of the information source;

Obtaining the existence proof and time stamp of the pledge information;

The block is generated according to the pledge information, a proof of existence of the pledge information, and a time stamp.
The computer non-volatile readable storage medium according to claim 16, wherein before the uploading the block to a blockchain, when the computer program is executed by a processor, the following steps are further implemented: :

Verify the digital signature of the block to determine whether the block is valid; or,

Verify the digital certificate of the block to determine if the block is valid.
The computer non-volatile readable storage medium according to claim 16, wherein the block chain stores user identity information and a configuration relationship of query authority, and the pledge information query request of the requester is received, Verifying the query authority of the requester and obtaining the verification result, including:

Parse the identity information of the requester from the pledge information query request;

Determining the query authority of the requester according to the identity information of the requester and the configuration relationship.