CN117714062A

CN117714062A - Asset information processing method, device, equipment and medium based on block chain

Info

Publication number: CN117714062A
Application number: CN202211102593.3A
Authority: CN
Inventors: 陈自民
Original assignee: Tenpay Payment Technology Co Ltd
Current assignee: Tenpay Payment Technology Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2024-03-15

Abstract

The embodiment of the application provides a method, a device, equipment and a medium for processing asset information based on a blockchain, wherein the method comprises the following steps: acquiring asset information sent by an asset holder, and sending a first identity verification request to a blockchain node so that the blockchain node determines a first identity verification result of the asset holder based on a first digital identity; receiving a first identity verification result returned by the block chain node, and if the first identity verification result indicates that the identity is legal, packaging the asset information into to-be-uplink data corresponding to a first digital identity; sending a first uplink request to a blockchain node to enable the blockchain node to add data to be uplink to the blockchain; receiving first uplink success prompt information and publishing asset information in a content publishing platform; and acquiring a viewing instruction aiming at the asset information, and acquiring communication information of an asset holder corresponding to the asset information. By adopting the embodiment of the application, the risk of the asset information being transmitted by mistake can be reduced.

Description

Asset information processing method, device, equipment and medium based on block chain

Technical Field

The present disclosure relates to the field of blockchain technologies, and in particular, to a blockchain-based asset information processing method, apparatus, device, and medium.

Background

In the current scenario of asset trading, the trade between an asset holder and an asset demander is operated based on a content distribution platform, for example, the asset holder needs to be authorized to a third party (e.g., an intermediary) who distributes the asset information of the asset holder to the content distribution platform, and the asset demander determines whether to satisfy own demand based on the asset information in the content distribution platform, that is, the asset holder and the asset demander are in information transfer by the third party. However, in this transaction scenario, the third party may miss or change part of the content in the asset information that the asset holder wants to issue, so that the asset information actually issued by the third party to the content issue platform may be different from the asset information actually wanted to issue by the asset holder, resulting in an excessively high risk of the asset information being erroneously transferred.

Disclosure of Invention

The embodiment of the application provides an asset information processing method, device, equipment and medium based on a blockchain, which can reduce the risk of asset information being transmitted by mistake and reduce the message barrier between a content release platform and an asset demander.

An aspect of an embodiment of the present application provides a method for processing asset information based on a blockchain, including:

acquiring asset information corresponding to an asset holder, and sending a first identity verification request for the asset holder to a block link point so that the block link point determines a first identity verification result of the asset holder based on a first digital identity carried by the first identity verification request;

receiving a first identity verification result returned by the block chain node, and if the first identity verification result indicates that the identity is legal, packaging the asset information into to-be-uplink data corresponding to a first digital identity;

sending a first uplink request carrying data to be uplink to a block link point, so that the block link point adds the data to be uplink carried in the first uplink request to a block chain;

receiving uplink success prompt information returned by the block chain node, and publishing asset information in a content publishing platform based on the uplink success prompt information;

and acquiring a viewing instruction for the asset information, and acquiring communication information of an asset holder corresponding to the asset information based on the second digital identity associated with the viewing instruction.

An aspect of an embodiment of the present application provides an asset information processing device based on a blockchain, including:

The asset information acquisition module is used for acquiring asset information corresponding to an asset holder and sending a first identity verification request aiming at the asset holder to the block chain link point so as to enable the block chain link point to determine a first identity verification result of the asset holder based on a first digital identity carried by the first identity verification request;

the packaging module is used for receiving a first identity verification result returned by the blockchain node, and if the first identity verification result indicates that the identity is legal, the asset information is packaged into to-be-uplink data corresponding to the first digital identity;

the first sending module is used for sending a first uplink request carrying data to be uplink to the block chain link point so that the block chain link point can add the data to be uplink carried in the first uplink request to the block chain;

the asset release module is used for receiving the first uplink success prompt information returned by the blockchain node and releasing asset information in the content release platform based on the first uplink success prompt information;

the communication information acquisition module is used for acquiring a viewing instruction for the asset information and acquiring the communication information of the asset holder corresponding to the asset information based on the second digital identity identifier associated with the viewing instruction.

Wherein, the encapsulation module includes:

the digital signature generation unit is used for encrypting the asset information if the first identity verification result indicates that the identity is legal, and generating a digital signature corresponding to the asset information;

the hash value acquisition unit is used for acquiring the hash value of the digital signature and packaging the hash value into the data to be uplink corresponding to the first digital identity.

Wherein, communication information acquisition module includes:

the verification request sending unit is used for obtaining a checking instruction of the asset demand party for asset information, sending a second identity verification request for the asset demand party to the block link point, so that the block link point determines a second identity verification result of the asset demand party based on a second digital identity carried by the second identity verification request;

the information acquisition unit is used for receiving a second identity verification result returned by the blockchain node, and if the second identity verification result indicates that the identity is legal, the communication information of the asset holder corresponding to the asset information is acquired.

Wherein the information acquisition unit includes:

the permission acquisition subunit is used for acquiring the inquiry permission range associated with the asset information based on the first uplink success prompt information if the second identity verification result indicates that the identity is legal;

And the information acquisition subunit is used for determining that the asset demand party has the information inquiry authority aiming at the asset holder if the inquiry authority range comprises the second digital identity mark, and acquiring the communication information of the asset holder.

Wherein the apparatus further comprises:

the protocol generation module is used for acquiring transaction confirmation information corresponding to the asset information and generating an initial asset transfer protocol corresponding to the asset information based on the transaction confirmation information; the initial asset transfer protocol is determined jointly by the asset holder and the asset demander;

the signature adding module is used for adding first signature information corresponding to the asset holder and second signature information corresponding to the asset demand party in the initial asset transfer protocol to obtain a target asset transfer protocol;

and the second sending module is used for sending a second uplink request carrying the target asset transfer protocol to the block chain link point so that the block chain link point adds the target asset transfer protocol carried in the second uplink request to the block chain.

Wherein the apparatus further comprises:

the state setting module is used for acquiring an update instruction aiming at the asset information, setting the asset information in the content release platform to be in a locking state, and acquiring candidate asset information based on the update instruction;

The third sending module is used for sending a third uplink request carrying the candidate asset information to the block chain link point so that the block chain link point adds the candidate asset information carried in the third uplink request to the block chain;

and the updating module is used for receiving second uplink success prompt information returned by the blockchain node and updating the asset information in the locked state in the content release platform into candidate asset information based on the second uplink success prompt information.

Wherein the apparatus further comprises:

the identity registration module is used for submitting an initial digital identity file corresponding to the asset holder to the block chain node so that the block chain node signs the initial digital identity file when determining that the asset holder meets identity legitimacy and generates a first digital identity file;

the registration result receiving module is used for acquiring an identity registration result returned by the block link point and storing a first digital identity mark carried in the identity registration result into the database; the identity registration result is used for indicating that the first digital identity file is successfully stored in the blockchain, and the first digital identity identifier is associated with the first digital identity file.

An aspect of the embodiments of the present application provides a computer device, including a memory and a processor, where the memory is connected to the processor, and the memory is used to store a computer program, and the processor is used to call the computer program, so that the computer device performs the method provided in the foregoing aspect of the embodiments of the present application.

An aspect of the present application provides a computer readable storage medium, in which a computer program is stored, the computer program being adapted to be loaded and executed by a processor, to cause a computer device having a processor to perform the method provided in the above aspect of the embodiments of the present application.

According to one aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the method provided in the above aspect.

In the embodiment of the application, the first identity verification request for the asset holder is sent to the block link point by acquiring the asset information corresponding to the asset holder, so that the block link point determines a first identity verification result of the asset holder based on the first digital identity carried by the first identity verification request; then receiving a first identity verification result returned by the block chain node, and if the first identity verification result indicates that the identity is legal, packaging the asset information into to-be-uplink data corresponding to a first digital identity; and sending a first uplink request carrying data to be uplink to the block chain link point so that the block chain link point adds the data to be uplink carried in the first uplink request to the block chain, thereby preventing the asset information from being tampered maliciously and being beneficial to improving the safety of the asset information; further, receiving uplink success prompt information returned by the block chain node, and publishing asset information in the content publishing platform based on the uplink success prompt information; and further, a viewing instruction aiming at the asset information can be obtained, and the communication information of the asset holder corresponding to the asset information is obtained based on the second digital identity associated with the viewing instruction, so that the asset demander can directly interact with the asset holder based on the communication information, the risk of the asset information being transmitted by mistake can be reduced, and the message barrier between the content release platform and the asset demander can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present application;

FIG. 2 is a block chain architecture diagram provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a hierarchical structure of a blockchain network provided in an embodiment of the present application;

FIG. 4 is a flowchart of a method for processing asset information based on blockchain according to an embodiment of the present application;

FIG. 5 is a timing diagram of a blockchain-based asset information processing method provided by embodiments of the present application;

FIG. 6 is a timing diagram of another blockchain-based asset information processing method provided by embodiments of the present application;

FIG. 7 is a schematic diagram of a block chain based asset information processing device according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of a computer device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Embodiments of the present application relate to blockchain techniques. The block chain is a set of basic framework which is decentralized and has the characteristic of distributed storage, in particular to a data structure which is formed by using blocks in a mode similar to a linked list according to a time sequence, can safely store data which have a precedence relationship and can be verified in a system, and ensures that the data cannot be tampered or counterfeited in a cryptography mode; the blockchain may be considered a distributed ledger, and the informational data contained within each block on the blockchain is ledger data of the distributed ledger.

The blockchain underlying platform may include processing modules such as basic services, smart contracts, and operations management. The basic service module is deployed on all block chain node devices, is used for verifying the validity of a service request, recording the service request on a storage after the effective request is identified, and for a new service request, the basic service firstly analyzes interface adaptation and authenticates the interface adaptation, encrypts service information (identification management) through an identification algorithm, and transmits the encrypted service information to a shared account book (network communication) completely and consistently, and records and stores the service information; the intelligent contract module is responsible for registering and issuing contracts, triggering contracts and executing contracts, a developer can define contract logic through a certain programming language, issue the contract logic to a blockchain (contract registering), invoke keys or other event triggering execution according to the logic of contract clauses to complete the contract logic, and simultaneously provide a function of registering contract upgrading; the operation management module is mainly responsible for deployment in the product release process, modification of configuration, contract setting, cloud adaptation and visual output of real-time states in product operation, for example: alarms, managing network conditions, managing node device health status, etc.

The embodiment of the application also relates to cloud storage (cloud storage), wherein the cloud storage is a new concept which extends and develops in the concept of cloud computing, and the distributed cloud storage system refers to a storage system which integrates a large number of storage devices (storage devices are also called storage nodes) of different types in a network through application software or application interfaces to work cooperatively through functions such as cluster application, grid technology, distributed storage file systems and the like, and provides data storage and service access functions for the outside. The storage system may be a blockchain system as referred to above, i.e., the digital identity of the asset holder, the asset information published by the asset holder, and the digital identity of the asset demander may all be stored in the blockchain system.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present application. The network architecture may include an electronic device 10, a first user device 20, a second user device 30, and a blockchain network 40. Wherein the electronic device 10, the first user device 20, and the second user device 30 refer to devices outside the blockchain network 40. Specifically, the electronic device 10 may refer to a device used by a content distribution platform that may interact with blockchain nodes on the blockchain network 40; the first user device 20 may refer to a device used by the asset holder; the second user device 30 may refer to a device used by the asset demander. The blockchain network 40 may be comprised of a plurality of blockchain links, the number of blockchain nodes included in the blockchain network 40 is not limited in this application.

Fig. 1 illustrates 6 blockchain nodes, where each blockchain node in the blockchain network is networked in a Peer-to-Peer (P2P) manner, and the blockchain nodes may communicate with each other according to a P2P protocol. Each block link point in the block chain network commonly follows a broadcasting mechanism and a consensus mechanism, so that the non-falsifiability and the non-falsifiability of data on the block chain are commonly ensured, and the characteristics of decentralization, trust removal and the like of the block chain are realized.

Referring to fig. 2, fig. 2 is a schematic block chain structure according to an embodiment of the present application. As shown in fig. 2, a blockchain may be made up of a series of data blocks, which may also be referred to as data blocks. The starting block comprises a block head and a block main body, wherein the block head stores an input information characteristic value, a version number, a time stamp and a difficulty value, and the block main body stores input information; the next block of the starting block takes the starting block as a father block, the next block also comprises a block head and a block main body, the block head stores the input information characteristic value of the current block, the block head characteristic value, the version number, the timestamp and the difficulty value of the father block, and the like, so that the block data stored in each block in the block chain are associated with the block data stored in the father block, thereby ensuring the safety of the input information in the block. In addition, after a data block is created, a consensus process needs to be performed in the blockchain network, and when the data block consensus is successful, the data block is allowed to be added to the blockchain; the data blocks in the blockchain may be concatenated in order of creation time stamps from small to large in a chained structure. The blockchain is a distributed ledger, and the information data contained in each block on the blockchain is ledger data of the distributed ledger.

The electronic device 10, the first user device 20, the second user device 30, and the blockchain node in the blockchain network 40 may be a user terminal, or may be a server, or may be a system formed by the user terminal and the server, which is not limited in this application. Personal computers (personal computer, PCs), smart phones, tablet computers, notebook computers, palm computers, mobile internet devices (mobile internet device, MIDs), wearable devices (e.g., smart watches, smart bracelets, etc.), smart voice interaction devices, smart appliances (e.g., smart televisions, etc.), vehicle-mounted devices, and the like.

The server may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content delivery networks (content delivery network, CDN), basic cloud computing services such as big data and artificial intelligent platforms, and the like.

Wherein a communication connection may be established between the electronic device 10, the first user device 20, the second user device 30, and a blockchain node in the blockchain network 40. For example, the electronic device 10 may receive asset information sent by the first user device 20 corresponding to the asset holder and send the asset information to the blockchain node in the blockchain network 40, such that the blockchain node adds the asset information to the blockchain; the electronic device 10 may also receive a view request for asset information from a second user device 30 corresponding to the asset demander, and request, from the blockchain link point, to obtain, based on the view request, communication information associated with the first digital identity of the asset holder on the blockchain, and so on. In addition, to ensure data interworking between the various blockchain nodes in the blockchain network 40, a communication connection may exist between each blockchain node, for example, a communication connection may exist between blockchain node 1 and blockchain node 2, and a communication connection may also exist between blockchain node 1 and blockchain node 3. It should be understood that the above communication connection is not limited to a connection manner, and may be directly or indirectly connected through a wired communication manner, or may be directly or indirectly connected through a wireless communication manner, and the like, and may be specifically determined according to an actual application scenario, which is not limited herein.

In order to solve the above problem, the first digital identity corresponding to the asset holder and the second digital identity corresponding to the asset requester may be obtained by registering the decentralized digital identities of the asset holder and the asset requester by means of a decentralized identity authentication system (Decentralized Identity, DID). In the decentralizing identity authentication system, a trusted upper-level organization can sign a decentralizing digital identity file (DID Document) of a lower-level organization, and the authenticated decentralizing digital identity file (namely the decentralizing digital identity file signed by the upper-level organization) is stored in a uplink manner; if the correctness of the decentralised digital identity of the subordinate mechanism needs to be verified, the decentralised digital identity file in the blockchain can be directly inquired for verification; the above-mentioned mode can make the issue of the decentralized digital identity from upper layer mechanism to lower layer mechanism in turn. The method comprises the steps of displaying the public key information corresponding to a subordinate mechanism in a decentralised digital identity file of the subordinate mechanism, namely binding the decentralised digital identity of the subordinate mechanism with the public key information of the subordinate mechanism.

It will be appreciated that the above-mentioned superordinate and subordinate authorities can both be understood as registering objects of decentralised digital identities in a decentralised identity authentication system. Specifically, in the embodiments of the present application, the superior institution may be a trusted authority or the like, and the inferior institution may be considered as an asset holder and an asset demander. In the embodiment of the application, based on the decentralization identity authentication system, only the decentralization digital identity files of the asset holder and the asset demander, namely the first digital identity corresponding to the asset holder and the second digital identity corresponding to the asset demander, are required to be stored in a chain mode, so that the fact that the identity data of the asset holder and the identity data of the asset demander are true and reliable can be guaranteed, meanwhile, the identity data of each object can be protected from being disclosed, and the fact that the data of each object are owned by the user can be guaranteed.

In the embodiment of the application, the off-center avatar authentication system can be implemented independently or by relying on a blockchain. If a decentralised identity authentication system relies on a blockchain implementation, the decentralised identity authentication system may be said to be associated with the blockchain. When the method is implemented, the centralized digital identity can be expressed in the form of a character string, and the first digital identity corresponding to the asset holder is described by taking the centralized digital identity as an example, and the first digital identity can be expressed by a character string of 'bid: sample: 123123123123 abcabs'. Wherein the prefix did is fixed and may be used to indicate that the string is an off-center avatar identity; "sample" means the DID method that can be used to define and manipulate the above-described de-centralized digital identity; "123123123123 abcabebc" may be represented as a unique identification string under the "example" method, typically corresponding to a pair of public and private keys held by an object corresponding to an identity. The decentralised digital identity files are in one-to-one relation with the decentralised digital identity files, the decentralised digital identity files can comprise DID metadata and DID public keys, the DID public keys can be used for digital signature or encryption operation and the like, and the DID public keys can be used for checking the decentralised digital identity marks. Optionally, the decentralized digital identity identifier may be stored by the object itself, and the decentralized digital identity file may be stored in a blockchain to ensure its correctness, where the decentralized digital identity identifier may be used as index information of the decentralized digital identity file. The generation, querying, updating, etc. of the decentralized digital identification and the decentralized digital identification file may be both responsible for the intelligent contract.

For example, assuming that the asset holder who issues an asset information with an decentralized digital identity signature and a DID identifier (i.e., a first digital identity identifier), other objects can perform validity verification on the decentralized identity digital signature by only finding the DID public key of the asset holder who issues an asset three from the blockchain according to the DID identifier (i.e., the first digital identity identifier), and if the verification passes, it can prove that the sender of the asset information is the person who holds the DID private key of the asset holder who issues an asset three, i.e., the asset holder who issues an asset three.

Referring to fig. 3, fig. 3 is a schematic diagram of a hierarchical structure of a blockchain network according to an embodiment of the present application. As shown in FIG. 3, in conjunction with the off-center avatar authentication system, the hierarchical mechanism of the blockchain network may be composed of an application layer, a service interface layer, and a persistence layer.

The application layer may include, among other things, a decentralised digital identity Issuer (DID Issuer), a decentralised digital identity Holder (DID Holder), and a decentralised digital identity Verifier (DID Verifier). The de-centralized digital identity issuer may issue verifiable claims (Verifiable Claims, VC), which may refer to files formed by endorsing attributes for certain objects. A decentralised digital identity holder may refer to a holder of a verifiable claim, which can sign the held verifiable claim to form a verifiable expression (Verifiable Presentation, VP); the verifiable expression may be used to indicate the identity of itself to the de-centralized digital identity verifier. The de-centralized digital identity verifier may be used to verify the correctness of the verifiable expression.

The service interface layer may include a decentralised digital identity Resolver (DID resolution). The decentralized digital identity resolver may provide a digital identity resolving service, may query a corresponding decentralized digital identity file (e.g., DID Document) based on a decentralized digital identity (e.g., DID), and may also provide CRUD functions (e.g., create, find, update, delete, etc.) for the decentralized digital identity.

The persistence layer may include trusted blockchains and decentralised storage. The trusted blockchain may be used to store data for the various objects in the application layer (the decentralized digital identity issuer, the decentralized digital identity holder, the decentralized digital identity verifier, etc.), the decentralized digital identity file, the verifiable claims issued by the decentralized digital identity issuer, the verifiable representations generated by the decentralized digital identity holder, etc. Decentralised storage may refer to distributed storage, where data may be stored scattered across multiple independent devices, i.e., where data storage may be engaged by numerous blockchain nodes.

In embodiments of the present application, the de-centralized digital identity issuer may be a trusted authority, such as an official authority or the like; the decentralised digital identity holder may be an asset holder or an asset demander etc. In the embodiment of the application, the asset holder can apply for registering the centralized digital identity to the centralized identity authentication system through the content publishing platform, the centralized identity authentication system registers the centralized digital identity for the asset holder based on the information (such as name, contact information and the like) of the asset holder so as to obtain a first digital identity corresponding to the asset holder and a first digital identity file corresponding to the first digital identity, and a mapping relation can be established between the first digital identity and the first digital identity file corresponding to the first digital identity and the communication information of the asset holder; and then adding the first digital identity mark and the corresponding first digital identity file thereof, the communication information of the asset holder and the corresponding mapping relation to the blockchain for storage. The asset holder issues the asset information on the content issuing platform, and the content issuing platform can submit the first digital identity of the asset holder to the decentralised digital identity issuer, and analyze the first digital identity through the decentralised digital identity analyzer in the service interface layer as shown in fig. 3, so that the corresponding first digital identity file can be queried from the blockchain based on the analysis result. When the decentralised digital identity issuer confirms that the digital identity of the asset holder is correct based on the first digital identity file, identity legal information can be returned to the content issuing platform, so that the content issuing platform sends a first uplink request carrying asset information to the block chain link point, and the block chain link point adds the asset information to the block chain based on the first uplink request; after the asset information is successfully uploaded, the asset information is displayed in the content distribution platform. Therefore, the asset holder can be guaranteed to be published in real name when publishing the asset information, and the asset information can be prevented from being tampered maliciously, so that the authenticity of the asset information can be improved.

Alternatively, the decentralised digital identity issuer may issue a Verifiable Claim (VC) for the asset holder to apply for a verifiable claim, such as an identity card issued by an official, a communication, an asset holder, etc. Wherein the format of the verifiable claims may include claim metadata, claims, and proof (proof); the claim metadata may include information of the decentralised digital identity issuer, date of issue, type of claim, etc.; a claim may refer to one or more descriptions of a principal (e.g., an asset holder), such as a claim of an asset holder may include information of the asset holder (information of name, contact, etc.), asset name, asset number, etc.; the certificate may hold a digital signature of the de-centralized digital identity issuer for verifying the correctness and origin of the verifiable claim, etc. The verifiable statement may be stored in a particular software application, or may be kept by the holder (e.g., the asset holder) itself, or may be stored to a blockchain for storage as personal privacy data.

Similarly, the asset demander can also apply for registering the decentralised digital identity to the decentralised identity authentication system through the content publishing platform, the decentralised identity authentication system registers the decentralised digital identity for the asset demander based on information (such as name, contact information and the like) of the asset demander, obtains a second digital identity corresponding to the asset demander and a second digital identity file corresponding to the second digital identity, and adds the second digital identity and the second digital identity file corresponding to the second digital identity to the blockchain for storage. The asset demander can browse the asset information published by the asset holder on the content publication platform when there is an asset demand. When the content issuing platform acquires the viewing instruction for the asset information, the communication information held by the asset corresponding to the asset information can be acquired based on the second digital identity identifier associated with the viewing instruction, and the risk of the asset information being transmitted in error can be reduced, so that the message barrier between the content issuing platform and the asset demander can be reduced.

Referring to fig. 4, fig. 4 is a flowchart of a method for processing asset information based on blockchain according to an embodiment of the present application. It will be appreciated that the method may be performed by a computer device, which may be a server or user device used by a content distribution platform. As shown in fig. 4, the asset information processing method based on the blockchain may include at least the following steps S101 to S105:

step S101: and acquiring asset information corresponding to the asset holder, and sending a first identity verification request aiming at the asset holder to the block chain link point so as to enable the block chain link point to determine a first identity verification result of the asset holder based on a first digital identity carried by the first identity verification request.

An asset holder may be understood as an object holding an asset; assets may include, but are not limited to, property properties, whether tangible or intangible, such as property, shares, copyright, gold, ancient games, and the like. Asset information may be understood as rental or vending information that an asset holder publishes for one or more assets at a content publishing platform; the asset information may include information such as a first digital identification, an asset holder name, an asset type, an asset description, a price, etc. The first digital identity identification decentralizing identity authentication system distributes decentralizing digital identities for the asset holder, has global uniqueness, high availability resolvable property and encryption verifiability, and can be used for uniquely identifying the identity of the asset holder. The first authentication result is obtained by authenticating the asset holder based on the first digital identification.

Specifically, the asset holder may issue asset information on the content issue platform, and the content issue platform may acquire the first digital identity of the asset holder based on the asset information after receiving the asset information; and generating a first authentication request for the asset holder based on the first digital identification. The content distribution platform may send the first authentication request to the blockchain node, so that the blockchain node determines a first authentication result of the asset holder based on the first digital identity carried by the first authentication request, thereby verifying the authenticity of the identity information of the asset holder, that is, verifying whether the identity information of the asset holder is legal.

As shown in fig. 3, after receiving the asset information, the content publishing platform may send a first authentication request to a blockchain node in the blockchain network, so that the blockchain node parses the first digital identity through a de-centralized digital identity parser in a service interface layer as shown in fig. 3, and further may query a corresponding first digital identity file from the blockchain based on a parsing result. When the de-centralized digital identity issuer confirms that the digital identity of the asset holder is correct based on the first digital identity file, a first identity verification result indicating that the identity is legal may be returned to the content distribution platform. When the de-centralized digital identity issuer confirms that the digital identity of the asset holder is incorrect based on the first digital identity file, a first identity verification result indicating that the identity is illegal may be returned to the content distribution platform.

Step S102, a first identity verification result returned by the block chain node is received, and if the first identity verification result indicates that the identity is legal, the asset information is packaged into to-be-uplink data corresponding to the first digital identity.

The content publishing platform receives a first identity verification result returned by the blockchain node, and when the first identity verification result indicates that the identity is legal, the first digital identity is verified to be authenticated, that is, the identity information of the asset holder corresponding to the first digital identity is true. At this time, the content publishing platform may encapsulate the asset information into the data to be uplink corresponding to the first digital identity, so as to subsequently add the data to be uplink to the blockchain for storage.

Optionally, when the first identity verification result indicates that the identity is legal, the content publishing platform may encrypt the asset information to generate a digital signature corresponding to the asset information; and then obtaining a hash value of the digital signature, and packaging the hash value into data to be uplink corresponding to the first digital identity.

In particular, the content distribution platform may generate a key pair that includes an object private key that is managed by the content distribution platform itself or delegated to a particular service for management, and an object public key that is sent to the blockchain nodes to cause the blockchain nodes to notify all blockchain nodes in the blockchain network of the object public key. The content publishing platform can encrypt the asset information by adopting the generated object private key to generate a digital signature corresponding to the asset information. The content publishing platform can also adopt a hash algorithm to carry out hash calculation on the digital signature to obtain a hash value of the digital signature, and package the hash value into data to be uplink corresponding to the first digital identity. In the embodiment of the application, the asset information is signed and hashed, and then packaged into the data to be uplink corresponding to the first digital identity, so that the asset information can be prevented from being maliciously tampered in the uploading process, and the safety of the asset information can be improved.

It should be understood that before the content distribution platform uploads the first uplink request carrying the data to be uplink, the object public key and the encryption method for generating the digital signature are already notified to the blockchain node in the blockchain network by the hash algorithm corresponding to the hash value for generating the digital signature, if the asset information in the data to be uplink is tampered in the uploading process, the data to be uplink received by the blockchain link point is not the data to be uplink uploaded by the content distribution platform, and when the blockchain link point adopts the object public key to decrypt the digital signature in the data to be uplink, the solution cannot be performed. The hash algorithms may include, but are not limited to, SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512, among others.

Step S103: and sending a first uplink request carrying the data to be uplink to the block link point, so that the block link point adds the data to be uplink carried in the first uplink request to the block chain.

Specifically, the content publishing platform may send a first uplink request carrying data to be uplink to the blockchain link node, and after receiving the first uplink request, the blockchain node may add the data to be uplink carried in the first uplink request to the blockchain, and based on the characteristics of non-falsifiability and non-falsifiability of the blockchain, may prevent the asset information contained in the data to be uplink from being falsified maliciously, so as to improve the security of the asset information.

The implementation process of adding the data to be uplink to the blockchain may include the following description: packaging the data to be uplink into transaction data, and packaging the transaction data into data blocks according to the ordering of the transaction data in a transaction pool; the data block may contain a plurality of transactions in the transaction pool, that is, in addition to the transaction data corresponding to the data to be uplink, other transaction data may be packaged. The data blocks packaged in the block chain network can be broadcasted, so that block link points in the block chain network can perform consensus processing on the data blocks. In other words, each blockchain node participating in the data block consensus process can vote for the data block, and if the blockchain node recognizes the data block, the blockchain node can vote for the data block; if the blockchain node does not identify the data block, an anti-objection ticket may be cast for the data block. Each blockchain node participating in the consensus process, whether it votes against or for a block of data, needs to broadcast voting information so that each blockchain node in the blockchain network can collect the voting information for each blockchain node.

If the voting information is greater than or equal to the quantity threshold value, determining that the block consensus result corresponding to the data block is successful in consensus, and further adding the data block to the block chain; if the number of votes is smaller than the number threshold, it may be determined that the block consensus result corresponding to the data block is a consensus failure, that is, the uplink data to be uplink is stored in a failed state, and the uplink storage operation needs to be performed again. The number threshold may be determined by the number of blockchain nodes participating in the consensus in the blockchain network, and the consensus algorithm used, where the number threshold may be different.

It can be understood that the uplink storage process of the first digital identity file related to the foregoing is the same as the uplink storage process of the data to be uplink, and in this embodiment of the present application, only the data to be uplink is described as an example, and the uplink storage process of the remaining data is not repeated.

The uplink storage process of the data to be uplink may be understood as a process of consensus of a data block including the data to be uplink. The consensus process in the blockchain network is a process of keeping the distributed account book among the blockchain nodes consistent, all or part of the blockchain nodes in the blockchain network can participate in the consensus process, the blockchain nodes participating in the consensus form a consensus committee of the blockchain network together, and each blockchain node participating in the consensus is a member of the consensus committee. In other words, the consensus committee of the blockchain network includes a plurality of blockchain nodes that participate in the consensus, and the consensus process in the blockchain network is performed by the blockchain nodes in the consensus committee.

In particular, the consensus process in the blockchain network may be implemented based on a consensus algorithm that may include, but is not limited to: a Proof of Work (PoW) algorithm, a Proof of equity (PoS) algorithm, a stock authorization Proof (Delegated Proof of Stake, DPoS) algorithm, a practical bayer fault tolerance (Practical Byzantine Fault Tolerance, PBFT) algorithm, etc., to which the present application is not limited; each block link point in the consensus committee may perform a corresponding flow of the consensus process by running a consensus algorithm.

It should be noted that, at a certain block height of the blockchain, one or more consensus processes are required to agree among the blockchain nodes of the consensus committee. The block height is used to represent the number of blocks connected to the blockchain, and is an identifier of a block that can be used to indicate the position of the block in the blockchain; the block height of the starting block in the blockchain defaults to 0, the block height of the first block after the starting block is 1 (the first block is simply referred to as block 1), the block height of the second block after the starting block is 2 (the second block is simply referred to as block 2), and so on. For example, the block height of the current block of a blockchain is 100 (the current block may be simply referred to as block 100), which means that 100 blocks have been stacked above the starting block, i.e., the number of blocks on the blockchain formed from the starting block to block 100 is 101.

The consensus processing of a certain block height of a blockchain refers to the process of performing consensus processing on a block to be uplinked in a blockchain network when the blockchain is at the certain block height, and if the block to be uplinked is successful in consensus, the block is added to the blockchain, and the block height of the blockchain is +1. For example, the consensus process at block height 10 of a blockchain refers to a process of consensus processing a block to be uplinked (e.g., the aforementioned data block) in a blockchain network when the blockchain is at block height 10, and if the data block consensus is successful, the data block is added to the blockchain such that the block height of the blockchain is changed from 10 to 11. If the data block consensus fails, the data block may be discarded, a new block containing asset display data may be generated in the blockchain network, and a new round of the consensus process for block height 10 may be initiated. When a data block is added to the blockchain, it indicates that the data to be uplink in the data block is successfully stored to the blockchain.

Step S104: and receiving first uplink success prompt information returned by the block chain node, and publishing asset information in the content publishing platform based on the first uplink success prompt information.

Specifically, after storing the data to be uplinked including the asset information into the blockchain, the blockchain node may return first uplink success prompt information to the content publishing platform, where the first uplink success prompt information may be used to indicate that the data to be uplinked is successfully stored into the blockchain. Based on the characteristics of the block chain, the asset information also has the characteristic of non-falsification, and further after the first uplink success prompt information returned by the block chain link point is received, the asset information corresponding to the asset holder can be published on the content publishing platform, and at the moment, the authenticity and the credibility of the asset information corresponding to the asset holder published on the content publishing platform can be ensured.

Step S105: and acquiring a viewing instruction for the asset information, and acquiring communication information of an asset holder corresponding to the asset information based on the second digital identity associated with the viewing instruction.

The view instruction may be an instruction issued by an asset demander, who may understand an object that requires renting or purchasing an asset; the asset desiring party can browse the issued asset information through the content issuing platform, and after the asset desiring party has a demand for renting or purchasing an asset in a certain asset information, a viewing instruction can be sent to the content issuing platform, and the viewing instruction can be used for indicating that the asset desiring party wants to acquire the communication information of the asset holder. The communication information of the asset holder may be understood as a contact information of the asset holder, and may include, but is not limited to, a phone number, a mailbox, or account information of chat software, etc. It will be appreciated that the content distribution platform may obtain, based on the viewing instruction, a second digital identity of an issuer of the viewing instruction (hereinafter described as an asset demander), which may also uniquely identify the true identity of the asset demander, similar to the first digital identity.

Specifically, it may be appreciated that the communication information of the asset holder may be pre-stored on the blockchain, and a mapping relationship between the first digital identification of the asset holder and the communication information of the asset holder may be established, and the mapping relationship may be stored in the blockchain, so that the first digital identification may be used as index information for acquiring the communication information of the asset holder stored in the blockchain. The content issuing platform can take the acquired viewing instruction aiming at the asset information as a triggering condition for acquiring the communication information of the asset holder corresponding to the asset information. That is, after the content publishing platform obtains the viewing instruction for the asset information, the content publishing platform may obtain the first digital identity of the asset holder corresponding to the asset information based on the second digital identity associated with the viewing instruction, so as to obtain the communication information of the asset holder on the blockchain based on the first digital identity. Optionally, the content distribution platform may return the communication information of the asset holder to the asset holder, so that the asset demander may directly interact with the asset holder based on the communication information, and the risk of the asset information being erroneously transferred may be reduced, thereby helping to reduce a message barrier between the content distribution platform and the asset demander.

Referring to fig. 5, fig. 5 is a timing diagram of a method for processing asset information based on blockchain according to an embodiment of the present application. As shown in fig. 5, the asset information processing method in the blockchain-based asset information processing method may include at least the following steps S201 to S222:

step S201: and submitting an initial digital identity file corresponding to the asset holder.

Step S202: and when the asset holder is determined to meet the identity legitimacy, signing the initial digital identity file to generate a first digital identity file.

Step S203: and returning the identity registration result of the asset holder.

Step S204: and storing the first digital identity mark carried in the identity registration result into a database.

Before sending asset information to the content distribution platform, the asset holder first needs to apply for identity authentication to a blockchain node, which is a trusted authority such as an official authority, etc. In particular, the identity authentication process of the asset holder may include: the content publishing platform acquires real-name information of an asset holder and generates an initial digital identity file (DID file) corresponding to the asset holder based on the real-name information; the content issuing platform submits an initial digital identity file corresponding to the asset holder to a block chain node, and the block chain node signs the initial digital identity file when determining that the asset holder meets identity legitimacy to generate a first digital identity file. The condition of identity validity can be that the real name information of the asset holder corresponding to the initial digital identity file is correct, so that the initial digital identity file can be ensured to identify the real identity of the asset holder. After the first digital identity file is generated, the blockchain node can return an identity registration result corresponding to the asset holder to the content release platform, and after the content release platform acquires the identity registration result returned by the blockchain node, the first digital identity mark carried in the identity registration result can be stored in the database. The identity registration result may be used to indicate that the first digital identity file was successfully stored to the blockchain, and further may determine that the identity of the asset holder has been authenticated by the blockchain node. The database is a local database of the content distribution platform and can be used for storing digital identities corresponding to the asset holder or the asset demander. The first digital identity file corresponds to a first digital identity identifier, and the corresponding first digital identity file can be obtained from the blockchain based on the first digital identity identifier, that is, the first digital identity identifier can be used as index information for obtaining the first digital identity file stored in the blockchain. The first digital identity file may also contain an object public key corresponding to the asset holder, recovery public key information when the object public key is lost, and the like.

Optionally, if the identity verification mechanism determines that the identity verification result of the asset holder indicates that the identity is illegal, a prompt message of identity registration failure may be returned to the content publishing platform, where the prompt message is used to indicate that the asset holder needs to apply for identity verification to the blockchain node again.

Step S205: asset information is sent.

Step S206: a first authentication request is sent for an asset holder.

Step S207: and determining a first identity verification result of the asset holder based on the first digital identity carried by the first identity verification request.

Step S208: and returning a first identity verification result of the asset holder.

Step S209: and if the first identity verification result indicates that the identity is legal, the asset information is packaged into the data to be uplink corresponding to the first digital identity.

Step S210: and sending a first uplink request carrying data to be uplink.

Step S211: and adding the data to be uplink carried in the first uplink request to the block chain.

Step S212: and returning first uplink success prompt information.

Step S213: and publishing asset information in the content publishing platform based on the first uplink success prompt information.

The specific implementation manner of step S205 to step S213 may refer to step S101 to step S104 in the embodiment corresponding to fig. 4, and will not be described herein.

Step S214: and sending a viewing instruction for the asset information.

Step S215: a second authentication request is sent for the asset demander.

Step S216: and determining a second identity verification result of the asset demander based on the second digital identity carried by the second identity verification request.

Step S217: and returning a second authentication result of the asset demander.

Specifically, the asset demander can browse the published asset information through the content publishing platform, and after the asset demander has a demand for renting or purchasing an asset in certain asset information, a viewing instruction can be sent to the content publishing platform, wherein the viewing instruction can be used for indicating that the asset demander wants to acquire the communication information of the asset holder. After acquiring the checking instruction of the asset demander for the asset information, the content issuing platform can acquire the second digital identity of the asset demander based on the checking instruction; and generating a second authentication request for the asset demander based on the second digital identity. The content publishing platform may send the second authentication request to the blockchain node, so that the blockchain link point determines a second authentication result of the asset demander based on a second digital identity carried by the second authentication request, thereby verifying the authenticity of the identity information of the asset demander, that is, verifying whether the identity information of the asset demander is legal.

As shown in fig. 3, after receiving the asset information, the content publishing platform may send a second authentication request to a blockchain node in the blockchain network, so that the blockchain node parses the second digital identity through a de-centralized digital identity parser in a service interface layer as shown in fig. 3, and further may query a corresponding second digital identity file from the blockchain based on a parsing result. When the de-centralized digital identity issuer confirms that the digital identity of the asset demander is correct based on the second digital identity file, a second identity verification result for indicating that the identity is legal may be returned to the content distribution platform. When the de-centralized digital identity issuer confirms that the digital identity of the asset demander is incorrect based on the second digital identity file, a second identity verification result for indicating that the identity is illegal may be returned to the content distribution platform.

Step S218: and if the second identity verification result indicates that the identity is legal, acquiring the communication information of the asset holder corresponding to the asset information.

Specifically, when the second identity verification result indicates that the identity is legal, the second digital identity is verified to be authenticated, that is, the identity information of the asset demander corresponding to the second digital identity is true. At this time, the first digital identity of the asset holder corresponding to the asset information can be obtained, so that the communication information of the asset holder can be obtained on the blockchain based on the first digital identity, the asset demander can directly interact with the asset holder based on the communication information, the risk of the asset information being wrongly transferred can be reduced, and the message barrier between the content distribution platform and the asset demander can be reduced.

Alternatively, whether the asset demander has the information inquiry authority for the asset holder can be determined by judging whether the inquiry authority range associated with the asset information contains the second digital identification. Specifically, when the second identity verification result indicates that the identity is legal, acquiring a query authority range associated with the asset information based on the first uplink success prompt information; when the query authority range contains the second digital identity, determining that the asset demander has information query authority for the asset holder, and acquiring communication information of the asset holder.

It will be appreciated that after asset information is successfully stored in the blockchain, a query authority range may be set on the blockchain for the private data in the asset information, such that only objects within the query authority range have authority to read the private data of the asset information in the blockchain, and objects outside the query authority range do not have authority to read the private data of the asset information in the blockchain. That is, the asset information browsed by the asset demander on the content distribution platform does not include all the asset information, but only a part of the asset information, and does not include the privacy data of the asset information. For example, the asset demander can browse the content publishing platform to the basic information such as asset price information, asset description information and the like in the asset information, and does not contain the communication information, asset credential information and the like of the asset holder. The query permission range can be returned to the content distribution platform along with the first uplink success prompt message. The query scope of authority may be determined according to actual situations, for example, the query scope of authority may include a non-trusted object, a high school object, and so on.

When the second identity verification result indicates that the identity is legal, the query permission range associated with the asset information can be obtained based on the first uplink success prompt information so as to verify whether the asset requiring party has the information query permission of the obtaining asset holder. If the second digital identity corresponding to the asset demander belongs to the query authority range corresponding to the asset information, it can be determined that the asset demander corresponding to the second digital identity has the information query authority for the asset holder. At this time, the first digital identity of the asset holder corresponding to the asset information can be obtained, so that the communication information of the asset holder can be obtained on the blockchain based on the first digital identity, the asset demander can directly interact with the asset holder based on the communication information, the risk of the asset information being wrongly transferred can be reduced, and the message barrier between the content distribution platform and the asset demander can be reduced.

Step S219: transaction confirmation information corresponding to the asset information is obtained, and an initial asset transfer protocol corresponding to the asset information is generated based on the transaction confirmation information.

Step S220: and adding the first signature information corresponding to the asset holder and the second signature information corresponding to the asset demand party in the initial asset transfer protocol to obtain a target asset transfer protocol.

Step S221: a second uplink request carrying the target asset transfer protocol is sent.

Step S222: the target asset transfer protocol carried in the second uplink request is added to the blockchain.

Specifically, the transaction confirmation information can be sent to the content distribution platform by the asset holding direction or sent to the content distribution platform by the asset demand direction; the transaction confirmation information is used for confirming that the asset holder and the asset demander agree on the transaction of the asset information, and both sides confirm that the transaction is performed on the asset information. When the content publishing platform acquires the transaction confirmation information corresponding to the asset information, an initial asset transfer protocol corresponding to the asset information can be generated based on the transaction confirmation information, wherein the initial asset transfer protocol can be understood as a transaction contract generated for the asset information and is jointly determined by an asset holder and an asset demand party, that is, the initial asset transfer protocol is jointly negotiated by the asset holder and the asset demand party, and the two parties agree on the initial asset transfer protocol.

The asset holder can generate first signature information corresponding to the asset holder based on own object information (such as information of name, identification card number, first digital identification mark and the like), and send the first signature information to the content publishing platform; similarly, the asset demander can also generate second signature information corresponding to the asset holder based on own object information (such as information of name, identification card number, second digital identification mark and the like), and send the second signature information to the content publishing platform; and the content release platform can add the first signature information corresponding to the asset holder and the second signature information corresponding to the asset demand party in the initial asset transfer protocol to obtain the target asset transfer protocol, so that the target asset transfer protocol carries the first signature information corresponding to the asset holder and the second signature information corresponding to the asset demand party, and the safety of the target asset transfer protocol is improved.

After obtaining the target asset transfer protocol, the content publishing platform may send a second uplink request carrying the asset transfer protocol to be target to the blockchain node, and after receiving the second uplink request, the blockchain node may add the target asset transfer protocol carried in the second uplink request to the blockchain, and based on the non-tamperable and non-counterfeitable characteristics of the blockchain, may prevent the target asset transfer protocol from being tampered maliciously, so that the security of the target asset transfer protocol may be further improved.

It will be appreciated that the uplink storage procedure of the target asset transfer protocol may refer to the description of the uplink storage procedure of the data to be uplink, which is not described herein.

Alternatively, after the update instruction for the asset information is acquired, the asset information in the content distribution platform may be set to a locked state, and candidate asset information is acquired based on the update instruction; then a third uplink request carrying the candidate asset information may be sent to the block link point, such that the block link point adds the candidate asset information carried in the third uplink request to the block chain; and then, the second uplink success prompt information returned by the blockchain node can be received, and the asset information in the locked state in the content release platform is updated to be candidate asset information based on the second uplink success prompt information.

The update instruction may be used to indicate that the asset information is updated, for example, the update instruction may change price information in the asset information, change ownership of the asset information, or the like; the issuer of the update instruction may be the asset holder. A locked state is understood to mean that the asset information is not modifiable and otherwise related, and typically only viewable. Candidate asset information may be understood as asset information that is adjusted based on update instructions. The second uplink success hint information may be used to indicate that the candidate asset information was successfully stored to the blockchain.

Specifically, after obtaining the candidate asset information, the content publishing platform may send a third uplink request carrying the candidate asset information to the blockchain link node, and after receiving the third uplink request, the blockchain node may add the candidate asset information carried in the third uplink request to the blockchain, and based on the characteristics of non-falsifiability and non-falsifiability of the blockchain, may prevent the candidate asset information from being falsified maliciously, so that the security of the candidate asset information may be improved. After storing the candidate asset information to the blockchain, the blockchain node can return second uplink success prompt information to the content publishing platform; and updating the asset information in the locked state in the content release platform into candidate asset information based on the second uplink success prompt information by the content release platform, wherein at the moment, the information browsed by the asset demander or other objects on the content release platform is changed from the asset information in the locked state into the candidate asset information. It will be appreciated that the status of the candidate asset information is an unlocked status, i.e., it may be viewed, changed, and other related operations may be performed.

It can be appreciated that the uplink storage process of the candidate asset information may refer to the description of the uplink storage process of the data to be uplink, which is not described herein.

Referring to fig. 6, fig. 6 is a timing diagram of another asset information processing method based on blockchain according to an embodiment of the present application. As shown in fig. 6, the blockchain-based asset information processing method involves interactions between asset demander, asset holder, content distribution platform, off-center avatar authentication system, and blockchain; it is to be appreciated that in some examples, the off-center avatar authentication system may be integrated in a blockchain network. The implementation flow of the asset information processing method based on the blockchain may include the following steps S301 to S319:

and step 301, registering the identity of the content distribution platform.

Step S302, registering real name information of the asset holder.

Step S303, verifying real name information of the asset holder.

Specifically, the asset holder may send identity information (e.g., information such as a name, an identification card number, etc.) to the content distribution platform, so as to perform identity registration on the content distribution platform based on the identity information, thereby obtaining real name information corresponding to the asset holder through registration; the content publishing platform sends the real name information corresponding to the asset holder to the off-center avatar authentication system so that the off-center avatar authentication system verifies the real name information of the asset holder.

Step S304, register the first digital identity of the asset holder on the blockchain.

Step S305, returning the first digital identity of the asset holder and its corresponding on-chain address.

And step S306, returning prompt information of successful registration of the asset holder.

Specifically, after the de-centralized identity authentication system verifies the real name information of the asset holder, the de-centralized identity authentication system may assign a corresponding first digital identity to the asset holder, i.e. may register the first digital identity of the asset holder on the blockchain, where the first digital identity may uniquely identify the real identity of the asset holder. After the first digital identity is obtained, the decentralizing identity authentication system returns the first digital identity and the corresponding on-chain address thereof to the content release platform; further, the content distribution platform returns a registration success prompt to the asset holder, where the registration success prompt is used to register a first digital identity with the asset holder Fang Dishi.

Step S307, the asset information is sent to the content publishing platform.

Step S308, verifying the first digital identity of the asset holder.

Specifically, after the real name information of the asset holder is successfully verified, the asset holder sends asset information to the content publishing platform; the content distribution platform may send a carry-over authentication request to the off-center identity authentication system based on the asset information, so that the off-center identity authentication system determines an authentication result of the asset holder based on the first digital identity carried in the authentication request to verify the identity authenticity of the asset holder.

And step S309, asset information is stored in a uplink mode.

And step S310, returning the uplink success prompt information and publishing the asset information on the content publishing platform.

Specifically, when the identity verification result indicates that the identity is legal, the asset information is added to the blockchain for storage, and uplink success prompt information is returned to the content release platform, wherein the uplink success prompt information is used for prompting that the asset information is successfully uplink; after the asset information is successfully uploaded, the asset information may be published by the content publication platform. Thus, the authenticity of the asset information can be ensured based on the non-tamperability of the blockchain.

And step 311, registering the identity of the content distribution platform.

Step S312, registering real name information of the asset demander.

Step S313, verifying real name information of the asset demander.

Specifically, the asset requirement party can send identity information (such as name, identification card number and the like) to the content release platform so as to register the identity on the content release platform based on the identity information, thereby registering to obtain real name information corresponding to the asset requirement party; the content publishing platform sends the real name information corresponding to the asset demand side to the off-center avatar authentication system so that the off-center avatar authentication system can verify the real name information of the asset demand side.

Step S314, registering a second digital identity of the asset demander on the blockchain.

Step S315, the second digital identity of the asset demander and the corresponding on-chain address are returned.

Step S316, returning prompt information of successful registration of the asset holder.

Specifically, after the de-centralized identity authentication system verifies the real-name information of the asset demander, the de-centralized identity authentication system can distribute a corresponding second digital identity for the asset demander, namely, can register the second digital identity of the asset demander on the blockchain, and the second digital identity can uniquely identify the real identity of the asset demander. After the second digital identity is obtained, the decentralizing identity authentication system returns the second digital identity and the corresponding on-chain address thereof to the content publishing platform; further, the content publishing platform returns registration success prompt information to the asset demander, wherein the registration success prompt information is used for prompting the asset demander that the second digital identity is registered successfully.

Step S317: and sending a viewing instruction for the asset information to the content issuing platform.

Step S318: and acquiring communication information of the asset holder based on the viewing request.

Step S319: and returning communication information of the asset holder.

Specifically, after the asset demander has a demand for renting or purchasing an asset in certain asset information, a viewing instruction can be sent to the content issuing platform, wherein the viewing instruction can be used for indicating that the asset demander wants to acquire communication information of the asset holder; after receiving the checking instruction, the content issuing platform can acquire the asset information corresponding to the checking instruction, so as to acquire the asset holder corresponding to the asset information, so as to acquire the communication information corresponding to the asset holder, and return the communication information of the asset holder to the asset demander, so that the asset demander can directly interact with the asset holder, the risk of the asset information being transmitted by mistake can be reduced, and the message barrier between the content issuing platform and the asset demander can be reduced.

It will be appreciated that in particular embodiments of the present application, identity information (e.g., personal information) and communication information (e.g., cell phone number) of a user or organization may be involved, and that when the above embodiments of the present application are applied to particular products or technologies, permissions or consents of the relevant user need to be obtained, and collection, use and processing of relevant data is required to comply with relevant laws and regulations and standards of the relevant country and region.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an asset information processing device based on a blockchain according to an embodiment of the present application. It will be appreciated that the blockchain-based asset information processing device 1 may be applied in a computer device used by a content distribution platform, which may be a user terminal or a server. As shown in fig. 7, the blockchain-based asset information processing device 1 may include: the system comprises an asset information acquisition module 11, a packaging module 12, a first sending module 13, an asset publishing module 14 and a communication information acquisition module 15;

the asset information obtaining module 11 is configured to obtain asset information corresponding to an asset holder, and send a first authentication request for the asset holder to the block link point, so that the block link point determines a first authentication result of the asset holder based on a first digital identity carried by the first authentication request;

The packaging module 12 is configured to receive a first identity verification result returned by the blockchain node, and if the first identity verification result indicates that the identity is legal, package the asset information into to-be-uplink data corresponding to the first digital identity;

a first sending module 13, configured to send a first uplink request carrying data to be uplink to the block link point, so that the block link point adds the data to be uplink carried in the first uplink request to the block chain;

the asset issuing module 14 is configured to receive a first uplink success prompt message returned by the blockchain node, and issue asset information in the content issuing platform based on the first uplink success prompt message;

the communication information obtaining module 15 is configured to obtain a viewing instruction for the asset information, and obtain communication information of the asset holder corresponding to the asset information based on the second digital identity associated with the viewing instruction.

The specific function implementation manner of the asset information obtaining 11, the packaging module 12, the first sending module 13, the asset publishing module 14 and the communication information obtaining module 15 may refer to step S101-step S105 in the embodiment corresponding to fig. 4, and will not be described herein.

In one or more embodiments, the packaging module 12 includes: a digital signature generation unit 121 and a hash value acquisition unit 122;

A digital signature generating unit 121, configured to encrypt the asset information if the first identity verification result indicates that the identity is legal, and generate a digital signature corresponding to the asset information;

the hash value obtaining unit 122 is configured to obtain a hash value of the digital signature, and encapsulate the hash value into data to be uplink corresponding to the first digital identity.

The specific functional implementation manner of the digital signature generating unit 121 and the hash value obtaining unit 122 may refer to step S102 in the embodiment corresponding to fig. 4, and will not be described herein.

In one or more embodiments, the communication information acquisition module 15 includes: an authentication request transmitting unit 151 and an information acquiring unit 152;

a verification request sending unit 151, configured to obtain a viewing instruction of the asset demander for asset information, and send a second identity verification request for the asset demander to the block link point, so that the block link point determines a second identity verification result of the asset demander based on a second digital identity carried by the second identity verification request;

the information obtaining unit 152 is configured to receive a second authentication result returned by the blockchain node, and obtain communication information of the asset holder corresponding to the asset information if the second authentication result indicates that the identity is legal.

The specific functional implementation manner of the verification request sending unit 151 and the information obtaining unit 152 may refer to step S214-step S218 in the embodiment corresponding to fig. 5, and will not be described herein.

In one or more embodiments, the information acquisition unit 152 includes: a rights acquisition subunit 1521 and an information acquisition subunit 1522;

the permission obtaining subunit 1521 is configured to obtain, if the second identity verification result indicates that the identity is legal, a query permission range associated with the asset information based on the first uplink success prompt information;

the information obtaining subunit 1522 is configured to determine that the asset demander has the information query authority for the asset holder if the query authority range includes the second digital identifier, and obtain the communication information of the asset holder.

The specific functional implementation manner of the rights acquiring subunit 1521 and the information acquiring subunit 1522 may refer to step S214-step S218 in the embodiment corresponding to fig. 5, and will not be described herein.

In one or more embodiments, the blockchain-based asset information processing device 1 further includes: a protocol generation module 16, a signature addition module 17 and a second transmission module 18;

a protocol generation module 16, configured to obtain transaction confirmation information corresponding to the asset information, and generate an initial asset transfer protocol corresponding to the asset information based on the transaction confirmation information; the initial asset transfer protocol is determined jointly by the asset holder and the asset demander;

The signature adding module 17 is configured to add first signature information corresponding to the asset holder and second signature information corresponding to the asset demander to the initial asset transfer protocol, so as to obtain a target asset transfer protocol;

a second sending module 18 is configured to send a second uplink request carrying the target asset transfer protocol to the blockchain link point, so that the blockchain link point adds the target asset transfer protocol carried in the second uplink request to the blockchain.

The specific functional implementation manners of the protocol generation module 16, the signature adding module 17 and the second sending module 18 may refer to step S219-step S222 in the embodiment corresponding to fig. 5, and will not be described herein.

In one or more embodiments, the blockchain-based asset information processing device 1 further includes: a state setting module 19, a third transmitting module 20, and an updating module 21;

a state setting module 19, configured to acquire an update instruction for asset information, set the asset information in the content distribution platform to a locked state, and acquire candidate asset information based on the update instruction;

a third sending module 20, configured to send a third uplink request carrying candidate asset information to the block link point, so that the block link point adds the candidate asset information carried in the third uplink request to the block chain;

And the updating module 21 is configured to receive the second uplink success prompt information returned by the blockchain node, and update the asset information in the locked state in the content publishing platform to candidate asset information based on the second uplink success prompt information.

The specific functional implementation manners of the state setting module 19, the third sending module 20, and the updating module 21 may refer to step S219-step S222 in the embodiment corresponding to fig. 5, and will not be described herein.

In one or more embodiments, the blockchain-based asset information processing device 1 further includes: an identity registration module 22 and a registration result receiving module 23;

the identity registration module 22 is configured to submit an initial digital identity file corresponding to the asset holder to the blockchain node, so that the blockchain node signs the initial digital identity file when determining that the asset holder meets identity legitimacy, and generates a first digital identity file;

the registration result receiving module 23 is configured to obtain an identity registration result returned by the block link point, and store a first digital identity identifier carried in the identity registration result into the database; the identity registration result is used for indicating that the first digital identity file is successfully stored in the blockchain, and the first digital identity identifier is associated with the first digital identity file.

The specific functional implementation manner of the identity registration module 22 and the registration result receiving module 23 may refer to step S201-step S04 in the embodiment corresponding to fig. 5, and will not be described herein.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a computer device according to an embodiment of the present application. As shown in fig. 8, the computer device 1000 may be a user terminal or a server, which is not limited herein. For ease of understanding, this application will take a computer device as an example of a user terminal, and the computer device 1000 may include: processor 1001, network interface 1004, and memory 1005, in addition, the computer device 1000 may further comprise: a user interface 1003, and at least one communication bus 1002. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may also include a standard wired interface, a wireless interface, among others. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1004 may be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 1005 may also optionally be at least one storage device located remotely from the processor 1001. As shown in fig. 8, an operating system, a network communication module, a user interface module, and a device control application may be included in a memory 1005, which is a type of computer-readable storage medium.

The network interface 1004 in the computer device 1000 may also provide network communication functions, and the optional user interface 1003 may also include a Display screen (Display) and a Keyboard (Keyboard). In the computer device 1000 shown in FIG. 8, the network interface 1004 may provide network communication functions; while user interface 1003 is primarily used as an interface for providing input to a user; and the processor 1001 may be used to invoke a device control application stored in the memory 1005 to implement:

receiving asset information sent by an asset holder, acquiring a first digital identity of the asset holder based on the asset information, and performing identity verification on the asset holder based on the first digital identity to obtain a first identity verification result of the asset holder;

when the first identity verification result indicates that the identity is legal, sending a first uplink request carrying asset information to the block link point so that the block link point adds the asset information to the block chain based on the first uplink request;

displaying asset information, receiving a viewing request of an asset demand side for the asset information, acquiring communication information of an asset holder corresponding to a first digital identity on a blockchain based on the viewing request, and sending the communication information to the asset demand side.

It should be understood that the computer device 1000 described in the embodiments of the present application may perform the description of the method for processing the asset information based on the blockchain in the embodiment corresponding to any of fig. 4 to 6, and may also perform the description of the asset information processing device 1 based on the blockchain in the embodiment corresponding to fig. 7, which is not repeated herein. In addition, the description of the beneficial effects of the same method is omitted.

Furthermore, it should be noted here that: the embodiments of the present application further provide a computer readable storage medium, in which the aforementioned computer program executed by the asset information processing device 1 based on a blockchain is stored, and the computer program includes program instructions, when executed by a processor, can execute the description of the asset information processing method based on a blockchain in any of the foregoing embodiments corresponding to fig. 4 to 6, and therefore will not be described herein in detail. In addition, the description of the beneficial effects of the same method is omitted. For technical details not disclosed in the embodiments of the computer-readable storage medium according to the present application, please refer to the description of the method embodiments of the present application. As an example, program instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or, alternatively, across multiple computing devices distributed across multiple sites and interconnected by a communication network, where the multiple computing devices distributed across multiple sites and interconnected by the communication network may constitute a blockchain system.

In addition, it should be noted that: embodiments of the present application also provide a computer program product or computer program that may include computer instructions that may be stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer readable storage medium, and the processor can execute the computer instructions, so that the computer device performs the description of the blockchain-based asset information processing method in any of the foregoing embodiments corresponding to fig. 4 to 6, and thus, a detailed description thereof will not be provided herein. In addition, the description of the beneficial effects of the same method is omitted. For technical details not disclosed in the computer program product or the computer program embodiments related to the present application, please refer to the description of the method embodiments of the present application.

It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the described order of action, as some steps may take other order or be performed simultaneously according to the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program stored in a computer-readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.

The foregoing disclosure is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the claims herein, as the equivalent of the claims herein shall be construed to fall within the scope of the claims herein.

Claims

1. A blockchain-based asset information processing method, comprising:

acquiring asset information corresponding to an asset holder, and sending a first identity verification request aiming at the asset holder to a block chain link node so that the block chain node determines a first identity verification result of the asset holder based on a first digital identity carried by the first identity verification request;

Receiving the first identity verification result returned by the blockchain node, and if the first identity verification result indicates that the identity is legal, packaging the asset information into data to be uplink corresponding to the first digital identity;

sending a first uplink request carrying the data to be uplink to the block chain node so that the block chain link point adds the data to be uplink carried in the first uplink request to a block chain;

receiving first uplink success prompt information returned by the blockchain node, and publishing the asset information in a content publishing platform based on the first uplink success prompt information;

and acquiring a viewing instruction aiming at the asset information, and acquiring communication information of an asset holder corresponding to the asset information based on a second digital identity associated with the viewing instruction.

2. The method of claim 1, wherein if the first identity verification result indicates that the identity is legal, encapsulating the asset information into data to be uplink corresponding to the first digital identity, includes:

if the first identity verification result indicates that the identity is legal, encrypting the asset information to generate a digital signature corresponding to the asset information;

And acquiring a hash value of the digital signature, and packaging the hash value into data to be uplink corresponding to the first digital identity.

3. The method of claim 1, wherein the obtaining the viewing instruction for the asset information, based on the second digital identifier associated with the viewing instruction, obtains the communication information of the asset holder corresponding to the asset information, includes:

acquiring a checking instruction of an asset demander aiming at the asset information, and sending a second identity verification request aiming at the asset demander to the blockchain node so that the blockchain node determines a second identity verification result of the asset demander based on a second digital identity carried by the second identity verification request;

and receiving the second identity verification result returned by the blockchain node, and if the second identity verification result indicates that the identity is legal, acquiring the communication information of the asset holder corresponding to the asset information.

4. A method according to claim 3, wherein if the second authentication result indicates that the identity is legal, obtaining the communication information of the asset holder corresponding to the asset information includes:

If the second identity verification result indicates that the identity is legal, acquiring a query authority range associated with the asset information based on the first uplink success prompt information;

and if the query authority range comprises the second digital identity, determining that the asset requiring party has information query authority aiming at the asset holder, and acquiring communication information of the asset holder.

5. A method according to claim 3, characterized in that the method further comprises:

acquiring transaction confirmation information corresponding to the asset information, and generating an initial asset transfer protocol corresponding to the asset information based on the transaction confirmation information; the initial asset transfer protocol is determined jointly by the asset holder and the asset demander;

adding first signature information corresponding to the asset holder and second signature information corresponding to the asset demand party in the initial asset transfer protocol to obtain a target asset transfer protocol;

and sending a second uplink request carrying the target asset transfer protocol to the blockchain node to enable the blockchain node to add the target asset transfer protocol carried in the second uplink request to the blockchain.

6. The method according to claim 1, wherein the method further comprises:

acquiring an update instruction aiming at the asset information, setting the asset information in the content distribution platform to be in a locking state, and acquiring candidate asset information based on the update instruction;

sending a third uplink request carrying the candidate asset information to the blockchain link point to cause the blockchain link point to add the candidate asset information carried in the third uplink request to the blockchain;

and receiving second uplink success prompt information returned by the blockchain node, and updating the asset information in the locked state in the content release platform into the candidate asset information based on the second uplink success prompt information.

7. The method according to claim 1, wherein the method further comprises:

submitting an initial digital identity file corresponding to the asset holder to the blockchain node, so that the blockchain node signs the initial digital identity file when determining that the asset holder meets identity legitimacy, and generates the first digital identity file;

acquiring an identity registration result returned by the blockchain node, and storing a first digital identity carried in the identity registration result into a database; the identity registration result is used for indicating that the first digital identity file is successfully stored in the blockchain, and the first digital identity identifier is associated with the first digital identity file.

8. A blockchain-based asset information processing device, comprising:

the system comprises an asset information acquisition module, a block chain node and a data processing module, wherein the asset information acquisition module is used for acquiring asset information corresponding to an asset holder and transmitting a first identity verification request aiming at the asset holder to the block chain node so that the block chain node determines a first identity verification result of the asset holder based on a first digital identity carried by the first identity verification request;

the packaging module is used for receiving the first identity verification result returned by the blockchain node, and if the first identity verification result indicates that the identity is legal, the asset information is packaged into to-be-uplink data corresponding to the first digital identity;

the first sending module is used for sending a first uplink request carrying the data to be uplink to the blockchain node so that the blockchain link point adds the data to be uplink carried in the first uplink request to a blockchain;

the asset issuing module is used for receiving first uplink success prompt information returned by the blockchain node and issuing the asset information in the content issuing platform based on the first uplink success prompt information;

And the communication information acquisition module is used for acquiring a viewing instruction aiming at the asset information and acquiring the communication information of the asset holder corresponding to the asset information based on the second digital identity identifier associated with the viewing instruction.

9. A computer device comprising a memory and a processor;

the memory is connected to the processor for storing a computer program, the processor being adapted to invoke the computer program to cause the computer device to perform the method of any of claims 1 to 7.

10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program adapted to be loaded and executed by a processor to cause a computer device having the processor to perform the method of any of claims 1 to 7.