WO2021254328A1

WO2021254328A1 - Blockchain-based asset information processing method and system

Info

Publication number: WO2021254328A1
Application number: PCT/CN2021/100112
Authority: WO
Inventors: 苟喜霞
Original assignee: 京东科技信息技术有限公司; 京东科技控股股份有限公司
Priority date: 2020-06-16
Filing date: 2021-06-15
Publication date: 2021-12-23
Also published as: CN111784128A

Abstract

Provided are a blockchain-based asset information processing method and system. The method comprises: issuing a handover request of a target asset in a blockchain (301), so that a target asset holder node corresponding to the target asset and a target supervisor node corresponding to the target asset confirm the handover request; if first confirmation information sent by the target asset holder node and the target supervisor node is received, generating an asset handover protocol by means of a pre-configured smart contract, and issuing the asset handover protocol in the blockchain (303), so that the target asset holder node and the target supervisor node confirm the asset handover protocol; and if second confirmation information sent by the target asset holder node and the target supervisor node is received, updating asset information of the target asset in the blockchain (305).

Description

Asset information processing method and system based on blockchain

References to related applications

This disclosure requires all the rights and interests of the invention patent application filed with the State Intellectual Property Office of the People's Republic of China on June 16, 2020, with the application number 202010549969.X, titled "A blockchain-based asset information processing method and system" , And incorporate its entire content into this article by reference.

field

The present disclosure generally relates to the field of blockchain technology, and more specifically, to a blockchain-based asset information processing method and system.

background

In real life, when the real estate demander and the real estate holder are handing over the real estate, they usually need to rely on a certain "central point" to realize the real estate handover, that is, the "central point" needs to be the real estate demander and the real estate holder respectively. Party to convey the handover information. For example, in the process of real estate handover, the real estate demander generally finds real estate through a real estate agency, and the real estate owner usually releases real estate information through the real estate agency. The real estate demander and the real estate owner operate based on the real estate agency and do not directly transfer.

However, the centralized real estate transfer method not only increases the cost of real estate transfer, but also lacks effective supervision of all parties involved in the real estate transfer process. It may happen that the real estate transfer data is modified, which may lead to risks in the property transfer process.

Overview

On the one hand, the present disclosure relates to a blockchain-based asset information processing system, which includes: an asset demander node, an asset holder node, and a supervisor node;

The asset demander node is configured to issue a transfer request of the target asset in the blockchain;

The target asset holder node and the target supervisor node are configured to confirm the handover request, and after the confirmation is passed, send first confirmation information to the asset demander node, and the target asset holder node is The asset holder node corresponding to the target asset, and the target supervisor node is the supervisor node corresponding to the target asset;

The asset demander node is further configured to generate an asset handover agreement through a pre-configured smart contract when receiving the first confirmation information sent by the target asset holder node and the target supervisor node. Publishing the asset transfer agreement in the blockchain;

The target asset holder node and the target supervisor node are further configured to confirm the asset handover agreement, and after the confirmation is passed, send second confirmation information to the asset demander node; and

The asset demander node is further configured to update the asset information of the target asset in the blockchain when receiving second confirmation information sent by the target asset holder node and the target supervisor node.

In some embodiments, the asset demander node is further configured to send first identity verification information of the asset demander to the first authentication node in the blockchain, so that the first authentication node can The first identity verification information is verified; and if the first verification node passes the first identity verification information, it joins the blockchain and obtains an electronic signature distributed by the blockchain.

In some embodiments, the supervisor node is further configured to send second identity verification information of the supervisor to the second authentication node in the blockchain, so that the second authentication node can The identity verification information is verified; and if the second verification node passes the verification of the second identity verification information, it joins the blockchain and obtains an electronic signature distributed by the blockchain.

In some embodiments, the asset holder node is further configured to send asset information of the asset to be handed over to a third authentication node in the blockchain, so that the third authentication node can check the asset information Perform verification; and if the third authentication node passes the verification of the asset information, join the blockchain and obtain an electronic signature distributed by the blockchain.

In some embodiments, the asset demander node is further configured to, in response to an asset screening request, search for asset information that matches the target asset information carried in the asset screening request among multiple asset information contained in the blockchain , Get the asset information of the user's intention asset;

Output the asset information of the user's intended asset; and

In response to the asset selection request, a target asset is determined among the user's intended assets.

In some embodiments, the asset demander node is further configured to obtain the first asset information of the target asset from other nodes included in the blockchain except the target asset holder node And if the first asset information obtained from the other node is the same as the second asset information of the target asset obtained from the target asset holder node, execute the in-area Publish the transfer request step of the target asset in the block chain.

In some embodiments, the target supervisor node includes a fund depositor node that stores funds of the asset demander, wherein,

The asset demander node is configured to send a fund freezing request to the fund depositor node when receiving first confirmation information sent by the target asset holder node and the target supervisor node; and

The fund storage node is configured to freeze the funds of the asset demander, and after completing the asset transfer of the target asset, transfer the funds of the asset demander to the asset holder of the target asset.

On the other hand, the present disclosure also relates to a blockchain-based asset information processing method, which is applied to any asset demander node in the blockchain, and the blockchain further includes at least one asset holder node and At least one supervisor node, the method includes:

Publish the transfer request of the target asset in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request;

If the first confirmation message sent by the target asset holder node and the target supervisor node is received, an asset handover agreement is generated through a pre-configured smart contract, and the asset is released in the blockchain A handover agreement that enables the target asset holder node and the target supervisor node to confirm the asset handover agreement; and

If the second confirmation information sent by the target asset holder node and the target supervisor node is received, the asset information of the target asset in the blockchain is updated.

In some embodiments, before issuing the transfer request of the target asset in the blockchain, it further includes:

Obtain the current asset processing status of the target asset; and

If the current asset processing state is the preset handover available state, the step of issuing the handover request of the target asset in the blockchain is executed.

Obtain the first asset information of the target asset from nodes other than the node of the target asset holder included in the blockchain; and

If the first asset information obtained from the other node is the same as the second asset information of the target asset obtained from the target asset holder node, then execute the blockchain Publish the transfer request steps of the target asset in.

In response to the asset screening request, search for asset information that matches the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain asset information of the user's intended asset;

Output the asset information of the user's intended asset; and

In some embodiments, the asset information of the target asset is stored in the blockchain in the form of pictures, and the updating the asset information of the target asset in the blockchain includes:

Perform image recognition processing on the asset information of the target asset to obtain text information representing the asset information of the target asset; and

Change the information of the asset holder in the text information to the information of the asset demander.

In some embodiments, the target supervisor node includes a fund depositor node that stores funds of the asset demander, and the method further includes:

If the first confirmation message sent by the target asset holder node and the target supervisor node is received, send a fund freezing request to the fund depositor node, so that the fund depositor node freezes the asset demand After completing the transfer of the assets of the target asset, transfer the funds of the asset demander to the asset holder of the target asset.

In yet another aspect, the present disclosure also relates to a blockchain-based asset information processing device, which is applied to any asset demander node in the blockchain, and the blockchain further includes at least one asset holder node and at least one The supervisor node, the device includes:

The publishing module is configured to publish the transfer request of the target asset in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request;

The generation module is configured to generate an asset handover agreement through a pre-configured smart contract when receiving the first confirmation information sent by the target asset holder node and the target supervisor node, and record it on the blockchain Issue the asset transfer agreement in, so that the target asset holder node and the target supervisor node confirm the asset transfer agreement; and

The update module is configured to update the asset information of the target asset in the blockchain when the second confirmation information sent by the target asset holder node and the target supervisor node is received.

In some embodiments, the device further includes:

The first obtaining module is configured to obtain the current asset processing state of the target asset; and

The first triggering module is configured to trigger the release module to execute the handover request step of publishing the target asset in the blockchain when the current asset processing state is a preset handover available state.

In some embodiments, the device further includes:

The second acquisition module is configured to acquire the first asset information of the target asset from other nodes included in the blockchain except the target asset holder node; and

The second trigger module is configured to, when the first asset information obtained from the other node is the same as the second asset information of the target asset obtained from the target asset holder node, The release module is triggered to execute the handover request step of publishing the target asset in the blockchain.

In some embodiments, the device further includes:

The matching module is configured to, in response to the asset screening request, search for asset information matching the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain the asset information of the user's intended asset;

An output module configured to output asset information of the user's intended asset; and

The determining module is configured to determine a target asset among the user's intended assets in response to an asset selection request.

In some embodiments, the update module includes:

The image recognition sub-module is configured to perform image recognition processing on the asset information of the target asset when the asset information of the target asset is stored in the blockchain in the form of pictures to obtain text representing the asset information of the target asset Information; and

The change sub-module is configured to change the information of the asset holder in the text information to the information of the asset demander.

In some embodiments, the target supervisor node includes a fund depositor node storing funds of the asset demander, and the device further includes:

The sending module is configured to send a fund freezing request to the fund depositor node when receiving the first confirmation information sent by the target asset holder node and the target supervisor node, so that the fund depositor The node freezes the funds of the asset demander, and after completing the asset transfer of the target asset, transfers the funds of the asset demander to the asset holder of the target asset.

In another aspect, the present disclosure also relates to an electronic device, which includes a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete mutual communication through the communication bus;

Memory, configured to store computer programs; and

The processor is configured to implement any method described in the present disclosure when it is configured to execute the computer program stored in the memory.

In yet another aspect, the present disclosure also relates to a computer-readable storage medium, which stores a computer program that, when executed by a processor, implements any of the methods described in the present disclosure.

In another aspect, the present disclosure also relates to a computer program product containing instructions, which when run on a computer, enables the computer to implement any method described in the present disclosure when executed by the computer.

The beneficial effects of certain embodiments of the present disclosure are:

Publish the transfer request of the target asset in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request; if the target asset holder node and target supervisor are received The first confirmation message sent by the party node generates an asset transfer agreement through a pre-configured smart contract, and publishes the asset transfer agreement in the blockchain, so that the target asset holder node and the target supervisor node can perform the asset transfer agreement. Confirm; and if the second confirmation information sent by the target asset holder node and the target supervisor node is received, the asset information of the target asset in the blockchain is updated.

In some embodiments of the present disclosure, on the one hand, each node in the blockchain can realize information sharing in the asset information processing process, which improves the security of information storage; on the other hand, a blockchain-based asset information processing method "Decentralization" can be achieved. Asset holder nodes and asset demander nodes can establish an effective and open asset transfer agreement through the blockchain. The asset information processing efficiency is high and it is trustworthy; on the other hand, the district The block chain can ensure that the written asset information is not tampered with and has traceability, which further ensures the security of asset information processing.

Of course, implementing any product or method of the present disclosure does not necessarily need to achieve all the advantages described above at the same time.

Brief description of the drawings

In order to explain the technical solutions of the present disclosure more clearly, the following will briefly introduce the accompanying drawings needed in the description of the present disclosure. For those of ordinary skill in the art, they can also be based on These drawings acquire other drawings.

FIG. 1 shows a schematic diagram of the architecture of a blockchain system provided by an embodiment of the present disclosure;

Figure 2 shows a schematic diagram of the interaction of an asset demand side node joining the blockchain in an embodiment of the present disclosure;

Fig. 3 shows an interactive schematic diagram of an asset information processing process provided by an embodiment of the present disclosure;

Figure 4 shows a flowchart of a blockchain-based asset information processing method provided by an embodiment of the present disclosure;

Figure 5 shows a flowchart of another blockchain-based asset information processing method provided by an embodiment of the present disclosure;

FIG. 6 shows a flowchart of another blockchain-based asset information processing method provided by an embodiment of the present disclosure;

FIG. 7 shows a schematic structural diagram of a blockchain-based asset information processing device provided by an embodiment of the present disclosure; and

Fig. 8 shows a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure.

Detail

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

The embodiment of the present disclosure provides a blockchain-based asset information processing system. As shown in FIG. 1, it is a schematic structural diagram of the asset information processing system provided by the embodiment of the present disclosure. Among them, the blockchain 100 can include multiple nodes (101, 102, 103, 104...), each node (101, 102, 103, 104...) is equal, numbered 101, 102, 103, 104 is only used as a mark, and does not limit the order of each node.

The embodiments of the present disclosure can be applied to asset transaction scenarios. Assets can be items that can be traded. For example, assets can be real estate, real estate, motor vehicles, and the like. Each node (101, 102, 103, 104...) can be the terminal or server of multiple participants in the asset transaction process, and multiple participants can be: asset demander, asset holder, supervisor, certification party, etc. . Asset transactions can be performed based on the preset mechanism in the blockchain 100. Among them, the asset demander is the party that needs to obtain the asset, and accordingly, the asset holder is the party that holds the asset. Taking real estate transactions as an example, the supervisor can be the land registry, the asset demander and the asset holder’s respective lawyers, loan providers, loan investigators, etc. The authenticator can be the national resident identity information system, bank card management system, The national corporate credit information publicity system and the online file information verification system of the Housing Administration Bureau, etc.

Considering that asset transactions involve changes in asset ownership, acquiring personal information of asset demanders and asset holders, and other private information, each node (101, 102, 103, 104...) in the blockchain 100 needs to meet Only preset verification conditions can be added to the blockchain 100, and the preset verification conditions may be identity verification, permission verification, and so on.

The process of adding each node to the blockchain will be described below in conjunction with specific implementations. First, the process of adding the asset demand side node to the blockchain is explained. Wherein, the asset demander node can be configured to send the first authentication information of the asset demander to the first authentication node in the blockchain, so that the first authentication node verifies the first identity verification information; if the first authentication node verifies Pass the first identity verification information, join the block chain, and obtain the electronic signature distributed by the block chain.

As shown in FIG. 2, the interaction process of the asset demander node joining the blockchain may include: step 201, the asset demander node 210 sends the first authentication information of the asset demander to the first authentication node 220 in the blockchain 230 . Among them, the first identity verification information may be the personal information of the asset demander, for example, the personal information may be the name, ID number, telephone number, image containing the facial feature of the asset demander, bank card number, etc.

After the first authentication node 220 receives the first identity verification information sent by the asset demander node 210, step 202 is executed to verify the first identity verification information. Then, the first authentication node 220 may perform step 203 to determine whether the first identity verification information passes the verification. If the first identity verification information fails the verification, the first verification node 220 may execute step 204 to send verification failure information to the asset demander node 210 without performing subsequent processing. If the first identity verification information is verified, the first verification node 220 may perform step 205 to send verification success information to the asset demander node 210. After that, the asset demander node 210 may perform step 206 to generate a block containing the first identity verification information, and then send the block to the blockchain 230 in a transaction manner, thereby joining the blockchain 230.

The embodiment of the present disclosure provides a processing process for the asset demander node 210 to generate a block containing the first identity verification information, including: the asset demander node 210 can calculate the Hash (hash) value of the first identity verification information and the request timestamp . The request timestamp may be the timestamp when the first identity verification information is sent to the first authentication node 220, and the request timestamp may also be the timestamp when the verification success information is received. Then, the asset demander node 210 may generate a pair of random keys, and use the random key to encrypt the Hash value of the first identity verification information. After that, the asset demander node 210 may use the hash value of the first identity verification information as the key (key value), and the data obtained by the encryption process as the value (value) to generate a block containing the key and value.

In some embodiments, after joining the blockchain, the asset demander node 210 can store the key, value, and random key locally. The key can be used as the only certificate of the asset demander.

In some embodiments, the first authentication node 220 may verify the first identity verification information in various ways. In a feasible implementation manner, the first authentication node 220 may be based on the first identity verification information. Perform identity verification; in another feasible implementation manner, the first authentication node 220 may perform bank card binding verification based on the first identity verification information.

For example, the first authentication node 220 may be a server of the National Resident Identity Information System. When performing identity verification, the first identity verification information may include at least two of the name, the image containing the facial features of the asset requester, and the ID number. kind. The first authentication node 220 can verify whether the first identity verification information of the asset demander is correct through the national citizen identity information system and the first identity verification information. The first authentication node 220 may be the server of the bank card management system. When the bank card binding verification is performed, in addition to the bank card number, the first identity verification information may include name, ID number, phone number, and asset requirements. At least two of the feature images. The first authentication node 220 can verify whether the first identity verification information of the asset demander is bound to the bank card number through the bank card management system and the first identity verification information.

To further ensure the verification accuracy of the first identity verification information, the first verification node 220 may perform identity verification first, and then perform the bank card binding verification after the identity verification is passed, and then the bank card binding verification is passed. Then, the verification success message is sent to the asset demander node 210.

In some embodiments, the supervisor node can also be configured to send the second authentication information of the supervisor to the second authentication node in the blockchain, so that the second authentication node can verify the second identity authentication information; After the second authentication node verifies the second identity verification information, it joins the blockchain and obtains the electronic signature distributed by the blockchain. Among them, the second identity verification information may be the corporate information of the supervisor. For example, the corporate information may be at least two types of company name, business license, business license validity period, legal representative, contact phone number, and bank card number. The second authentication node may be a server of the national enterprise credit information publicity system.

The process that the supervisor node joins the blockchain based on the second identity verification information is similar to the process that the asset demander node joins the blockchain based on the first identity verification information, and will not be repeated here.

In some implementations, the asset demander may also be an enterprise or an administrative agency, and correspondingly, the first identity verification information may be the enterprise information of the asset demander. Similarly, the supervising party can also be an individual, and correspondingly, the second identity verification information can be the personal information of the supervising party.

In some embodiments, the asset holder node can also be configured to send asset information of the asset to be handed over to the third authentication node in the blockchain, so that the third authentication node can verify the asset information; if the third authentication node After verifying the asset information, join the blockchain and obtain the electronic signature distributed by the blockchain.

In some embodiments, the asset information may include asset processing status, asset type, asset location, asset supporting services, handover time, handover type, payment rules, and so on. Taking the asset as a real estate as an example, the asset processing status can be waiting to be rented, waiting to be sold, rented out and sold, etc.; the asset type can be two bedrooms and one living room, the orientation of the room, etc.; the handover time can be the first purchase date; the handover type can be Rental, sale, etc.; payment rules can be the proportion of the down payment to the total amount, the amount of the deposit, etc. The third authentication node may be a server of the online archive information verification system of the Housing Administration Bureau.

The process of adding a node of an asset holder to the blockchain is similar to the process of adding a node of the asset demanding side to the blockchain described above, and will not be repeated here.

In some embodiments, asset information such as asset transaction contracts and asset ownership certificates are stored in the asset holder node in the form of pictures. When joining the blockchain, the asset holder node can perform image recognition processing on the asset information stored in the form of a picture to obtain text information representing the asset information. Then, the asset holder node can calculate the Hash value based on the text information of the asset information and the request timestamp. As a result, the processing speed of asset information in the form of pictures such as asset transaction contracts and asset ownership certificates can be increased, thereby increasing the speed of block generation.

In some embodiments, the embodiments of the present disclosure also illustrate the process of asset information processing based on the blockchain. As shown in Figure 3, the interaction process of each node in the blockchain includes:

301. The asset demander node 310 can be configured to issue a transfer request of the target asset in the blockchain;

302. The target asset holder node 320 and the target supervisor node 330 may be configured to confirm the handover request, and after the confirmation is passed, send the first confirmation information to the asset demander node 310;

303. The asset demander node 310 can also be configured to generate an asset transfer agreement through a pre-configured smart contract when receiving the first confirmation information sent by the target asset holder node 320 and the target supervisor node 330, and then Issue an asset transfer agreement in the blockchain;

304. The target asset holder node 320 and the target supervisor node 330 are also configured to confirm the asset handover agreement, and after the confirmation is passed, send second confirmation information to the asset demander node 310; and

305. The asset demander node 310 may also be configured to update the asset information of the target asset in the blockchain when receiving the second confirmation information sent by the target asset holder node 320 and the target supervisor node 330.

In some embodiments, when the asset demander browses multiple asset information in the blockchain through the asset demander node 310, if the asset demander wants to hand over the desired target asset, the asset demander can perform the first A preset operation is performed so that the asset demander node 310 generates a transfer request for the target asset. The first preset operation may be to press and hold the asset information of the target asset, and the first preset operation may also be to click the preset handover icon with the asset information of the target asset selected. The processing process of the asset demander node 310 generating the transfer request of the target asset may refer to the processing process of the blockchain node generating the transaction request in the related technology, which will not be repeated here.

Smart contracts can be pre-configured in the blockchain, and the asset holder nodes and supervisor nodes corresponding to each asset can be recorded in the smart contract. The asset holder node corresponding to a certain asset can be the node of the asset holder holding the asset; the supervisor node corresponding to a certain asset can be the node of the supervisor who supervises the transfer process of the asset.

In some implementations, taking the asset as a real estate as an example, for real estate B in community A, the asset holder node corresponding to the real estate can be the mobile phone of the asset holder Xiaoming of real estate B, and the supervisory party corresponding to the real estate The node may be the server of the land registry in the area to which cell A belongs, the mobile phone of the lawyer 1 of the asset demander, the mobile phone of the lawyer 2 of the asset holder, the mobile phone of the loan provider of the asset demander, and the mobile phone of the loan investigator.

The asset demander node 310 can determine the asset holder node corresponding to the target asset through the smart contract, obtain the target asset holder node, and determine the supervisor node corresponding to the target asset through the smart contract, and obtain the target supervisor node, then, The asset demander node 310 may send a transfer request of the target asset to the target asset holder node and the target supervisor node.

In some embodiments, the transfer request of the target asset may carry the asset identification of the target asset, and the transfer request of the target asset may also carry the asset information of the target asset.

In some embodiments, the target asset holder node 320 may determine the asset information of the target asset based on the transfer request of the target asset. Then, the asset holder holding the target asset can confirm whether to participate in the transfer process of the target asset based on the asset information of the target asset. If the asset holder participates in the transfer processing of the target asset, the target asset holder node 320 can send the first confirmation message to the asset demander node 310; if the asset holder does not participate in the transfer processing of the target asset, the target asset holder The party node 320 may send the handover rejection information to the asset demander node 310.

The process for the target supervisor node 330 to confirm the handover request is similar to the process for the target asset holder node 320 to confirm the handover request, and will not be repeated here.

In some embodiments, if the asset demander node 310 receives the first confirmation information sent by the target asset holder node 320 and the target supervisor node 330, it indicates that the target asset holder node 320 and the target supervisor node 330 After confirming to participate in the transfer process of the target asset, the asset demander node 310 can generate an asset transfer agreement through a smart contract. After that, the asset demander node 310 may send an asset handover agreement to the target asset holder node 320 and the target supervisor node 330.

In some implementations, the asset transfer agreement can record the personal information of the asset demander, the personal information of the asset holder, the asset information of the target asset, the transfer time, the funds required to transfer the target asset, and the target supervisor’s Corporate information, etc.

If the asset demander node 310 receives the handover rejection message sent by the target asset holder node 320, or receives the handover rejection message sent by a target supervisor node 330, it indicates the parties involved in the target asset handover process The asset transfer is disapproved, or the participant does not have the authority to participate in the transfer process of the target asset. At this time, the asset demander node 310 may output the transfer failure information, which has prompted the asset demander that the asset cannot be transferred.

Since the asset demander node 310 generates the asset handover agreement after receiving the first confirmation information sent by the target asset holder node 320 and the target supervisory node 330, it can ensure that the target asset holder and the target supervisory party are both Have the authority to participate in the transfer process of the target asset, and the asset transfer process can be carried out effectively.

In some embodiments, after receiving the asset handover agreement, the target asset holder node 320 can confirm whether the asset handover agreement is compliant. If the asset handover agreement is compliant, the target asset holder node 320 can request the asset The party node 310 sends the second confirmation message. If the asset handover agreement is not compliant, the target asset holder node 320 may send a handover rejection message to the asset demander node 310.

In some implementations, the target asset holder node 320 can confirm whether the asset transfer agreement is compliant in multiple ways. For example, the target asset holder node 320 can be set with audit rules, and the target asset holder node 320 The compliance of the asset transfer agreement can be determined in accordance with the audit rules. Alternatively, the target asset holder node 320 can output the asset transfer agreement so that the asset holder of the target asset can manually review whether the asset transfer agreement is compliant, and then the target asset holder node 320 can obtain the manual review result, according to The manual review results determine whether the asset transfer agreement is compliant.

The process of the target supervisory node 330 confirming the asset handover agreement is similar to the process of the target asset holder node 320 confirming the asset handover agreement, and will not be repeated here.

In some embodiments, if the asset demander node 310 receives the second confirmation information sent by the target asset holder node 320 and the target supervisor node 330, it indicates that the target asset holder node 320 and the target supervisor node 330 A consensus is reached on the transfer agreement of the target asset, and then the asset demander node 310 can update the asset information of the target asset in the blockchain.

The asset demander node 310 can update the asset information of the target asset in the blockchain in a variety of ways. For example, if the asset is a real estate as an example, when the transfer type is sale, the asset demander node 310 can update the property owner of the target asset. Personal information is modified to the personal information of the asset demander. When the handover type is leased, the asset demander node 310 can modify the asset processing status of the target asset to leased, and record the lease end time.

If the asset demander node 310 receives the handover refusal message sent by a target asset holder node 320, or receives the handover refusal message sent by a target supervisor node 330, it indicates that the handover agreement of the target asset is not compliant At this time, the asset demander node 310 can output the handover failure information, which has prompted the asset demander that the asset cannot be handed over.

In some implementations, on the one hand, each node in the blockchain can realize information sharing in the asset information processing process, which improves the security of information storage; on the other hand, the asset information processing method based on the blockchain can achieve " “Decentralization” means that asset holder nodes and asset demand-side nodes can establish effective and open asset transfer agreements through the blockchain. Asset information processing efficiency is high and it is trustworthy. On the other hand, the blockchain can It is ensured that the written asset information is not tampered with and has traceability, which further ensures the security of asset information processing, thereby solving the problem of the lack of effective supervision of the existing asset handover process.

Based on the blockchain-based asset information processing system provided by the embodiments of the present disclosure, a distributed asset information processing solution that does not involve third parties such as asset intermediaries can be realized.

In some implementations, in the process of browsing asset information through the asset demander node, the asset demander can filter multiple asset information in the blockchain to determine the target asset to be handed over.

In some embodiments, the asset demander node can also be configured to respond to the asset screening request to find asset information that matches the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain the user's intention. Asset information of the asset. Output the asset information of the user's intended asset; in response to the asset selection request, determine the target asset in the user's intended asset.

In some embodiments, the asset information may include at least one of asset processing status, asset type, asset location, asset supporting services, handover time, handover type, and payment rules.

In some implementations, since the blockchain contains asset information of multiple assets, when the asset demander finds the intended asset through the asset demander node, it can perform a second preset operation so that the asset demander node can receive Asset screening request. The second preset operation may be to output the asset information of the intended asset in the preset search bar, and the second preset operation may also be to select the asset information of the intended asset from the various asset information contained in the preset screening page.

The asset demander node can determine the target asset information indicated by the asset screening request. Then, the asset demander node can search for asset information matching the target asset information among the asset information of multiple assets contained in the blockchain to obtain the user's intended asset Asset information. After that, the asset demander node can display the asset information of the user's intended asset on the preset display page.

When the asset demander browses the asset information of the user's intended asset, if it wants to handover an asset, the asset demander can perform the first preset operation so that the asset demander node receives the asset selection request. After that, the asset demander node can determine the asset indicated by the asset selection request to obtain the target asset.

In some embodiments, still taking the asset as a real estate as an example, the target asset information carried in the asset screening request may be: the asset location is in cell A, and the asset type is two rooms and one hall. The asset demand-side node can search for asset information of assets located in cell A and whose asset type is two rooms and one hall in the asset information of multiple assets contained in the blockchain.

In some implementations, the asset demander node can respond to the asset screening request and search for asset information that matches the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain the user's intended asset information. Asset information. Then, the asset demander node can output the asset information of the user's intended asset. Afterwards, in response to the asset selection request, the asset demander node can determine the target asset among the user's intended assets. Therefore, it is convenient for the asset demand side to quickly determine the target asset to be handed over.

In some embodiments, since the asset information of the same asset can be stored in multiple nodes of the blockchain, in order to ensure that the asset information of the target asset obtained from the node of the target asset holder is true and reliable, the asset demander The node can verify the consistency of the asset information of the target asset.

In some embodiments, the asset demander node can also be configured to obtain the first asset information of the target asset from other nodes included in the blockchain except the target asset holder node; if it is from other nodes The obtained first asset information is the same as the second asset information of the target asset obtained from the target asset holder node, and then the handover request step of publishing the target asset in the blockchain is executed.

In some embodiments, the asset demander node can obtain asset information of the target asset from at least two other nodes included in the blockchain, except for the target asset holder node, to obtain multiple asset information. In order to facilitate the distinction, the asset information of the target asset obtained from other nodes is called the first asset information, and the asset information of the target asset obtained from the node of the target asset holder is called the second asset information.

Then, the asset demand side node can compare the first asset information and the second asset information. If each of the first asset information is the same as the second asset information, it indicates that the second asset information has not been tampered with, and can be based on the second asset information Perform asset transfer. If any of the first asset information and the second asset information are not the same, it indicates that the second asset information has been tampered with, and the asset demander node can output prompt information indicating that the second asset information has been tampered with, without subsequent processing.

In some embodiments, the asset demander node may obtain the first asset information of the target asset from nodes other than the target asset holder node included in the blockchain. When the first asset information obtained from other nodes is the same as the second asset information of the target asset obtained from the target asset holder node, the asset demander node will publish the transfer of the target asset in the blockchain Therefore, the reliability of the asset information provided by the target asset provider can be ensured. In some implementations, because the blockchain can ensure that the written asset information is not tampered with and has traceability, it can ensure the security of asset information processing, which can solve the lack of effective supervision of the existing asset handover process. The problem.

In some implementations, the transfer of assets involves the exchange of the assets of the asset demander with the assets of the asset holder. Therefore, in order to ensure the successful realization of the asset transfer, it is also necessary to transfer the assets of the asset demander to the asset holder. The funds of the asset demander can be stored at the fund depositor, which can be a bank, Internet financial platform, etc., and the fund depositor node can be used as the target supervisor node.

In some embodiments, the asset demander node may be configured to send a fund freezing request to the fund depositor node when the first confirmation information sent by the target asset holder node and the target supervisor node is received. The fund depositor node can be configured to freeze the funds of the asset demander, and after completing the asset transfer of the target asset, transfer the funds of the asset demander to the asset holder of the target asset.

In some embodiments, the asset demander node may send a fund freezing request to the fund depositor node after receiving the first confirmation information sent by the target asset holder node and the target supervisor node. After receiving the fund freezing request, the fund storage node can freeze the funds of the asset demander.

After completing the asset transfer of the target asset, the asset demander node can calculate the amount of funds required to transfer the target asset according to the payment rules set in the smart contract. Then, the asset demander node can send the calculated amount to the fund depositor node. The resource provider can transfer the funds of the asset demander to the asset holder of the target asset according to this amount.

In some implementations, the resource provider node can freeze all the funds of the asset demander or part of the funds of the asset demander.

For example, when the transfer type is lease, the fund depositor node can freeze part of the asset demander's funds after receiving the fund freezing request, and use the frozen part of the funds as a deposit. When the rent payment date is reached, the asset demander node can calculate the amount of rent required to rent the target asset during the current lease period, and get 2k. Then, the asset demander node can send the calculated amount of 2k to the fund depositor node. The resource provider can transfer the 2k of the asset demander to the asset holder of the target asset.

In some embodiments, the asset demander node may send a fund freezing request to the fund depositor node when receiving the first confirmation information sent by the target asset holder node and the target supervisor node. The fund depositor node can freeze the funds of the asset demander after receiving the fund freezing request, and after completing the asset transfer of the target asset, transfer the funds of the asset demander to the asset holder of the target asset. As a result, it is possible to ensure the smooth transfer of funds between the asset demander and the asset holder during the asset handover process, thereby ensuring the security of asset information processing.

Based on the same technical concept, the embodiments of the present disclosure also provide a blockchain-based asset information processing method, which can be applied to any asset requester node in the blockchain. The following will describe in detail the blockchain-based asset information processing method provided by the embodiments of the present disclosure in conjunction with specific implementations, as shown in FIG. 4, which includes:

401. Publish the transfer request of the target asset in the blockchain;

402. If the first confirmation message sent by the target asset holder node and the target supervisor node is received, an asset handover agreement is generated through a pre-configured smart contract, and the asset handover agreement is issued in the blockchain;

403. If the second confirmation information sent by the target asset holder node and the target supervisor node is received, update the asset information of the target asset in the blockchain; and

For the specific processing procedures of 401 to 403, please refer to the processing procedures of the asset demand side node 310 in the above-mentioned 301 to 305, which will not be repeated here.

Using the blockchain-based asset information processing method provided by the embodiments of the present disclosure, on the one hand, each node in the blockchain can realize information sharing in the asset information processing process, which improves the security of information storage; on the other hand, it is based on the region. The asset information processing method of the block chain can be "decentralized". The asset holder node and the asset demander node can establish an effective and open asset transfer agreement through the blockchain, and the asset information processing efficiency is high, and it is trustworthy On the other hand, the blockchain can ensure that the written asset information is not tampered with and has traceability, which further guarantees the security of asset information processing, thus, it can solve the lack of effective supervision of the existing asset handover process problem.

In some embodiments, the asset information may include the asset processing status. After determining the target asset to be handed over, the asset demander node can determine whether to issue the transfer request of the target asset based on the current asset processing status of the target asset, as shown in Fig. As shown in 5, it includes:

501. Obtain the current asset processing status of the target asset;

502. If the current asset processing state is the preset handover state, issue a handover request for the target asset in the blockchain;

503. If the first confirmation message sent by the target asset holder node and the target supervisor node is received, an asset handover agreement is generated through a pre-configured smart contract, and the asset handover agreement is published in the blockchain; and

504. If the second confirmation information sent by the target asset holder node and the target supervisor node is received, update the asset information of the target asset in the blockchain.

For the specific processing procedures of 502 to 504, please refer to the processing procedures of 401 to 403, which will not be repeated here.

In some embodiments, the preset handover status may be for sale or for lease.

In some embodiments, the asset demand side node can obtain the asset information of the target asset from the blockchain, and the asset demand side node can use the asset processing state in the asset information as the current asset processing state. Then, the asset demander node can determine whether the current asset processing state is the preset handoverable state.

If the current asset processing state is not the preset handover state, the asset demander node can output a prompt message indicating that the target asset cannot be handed over.

In some implementations, the asset demander node can obtain the current asset processing state of the target asset. Then, the asset demander node can publish the target asset's status in the blockchain when the current asset processing state is the preset handoverable state. Handover request to handover the target asset. As a result, it can be ensured that the asset demand side node transfers the assets in the transferable state, thereby ensuring the effectiveness of the asset transfer.

In some embodiments, since the asset information of the same asset can be stored in multiple nodes of the blockchain, in order to ensure that the asset information of the target asset obtained from the node of the target asset holder is true and reliable, in the block Before issuing the transfer request of the target asset in the chain, the asset demand side node can verify the consistency of the asset information of the target asset. The verification process includes:

Step 1. Obtain the first asset information of the target asset from other nodes included in the blockchain except the target asset holder node corresponding to the target asset;

Step 2. Determine whether the first asset information obtained from other nodes is the same as the second asset information of the target asset obtained from the target asset holder node;

Step 3. If the first asset information obtained from other nodes is the same as the second asset information of the target asset obtained from the target asset holder node, then issue the transfer request of the target asset in the blockchain;

Step 4. If the first confirmation message sent by the target asset holder node and the target supervisor node is received, the asset transfer agreement is generated through the pre-configured smart contract, and the asset transfer agreement is published in the blockchain; and

Step 5. If the second confirmation information sent by the target asset holder node and the target supervisor node is received, the asset information of the target asset in the blockchain is updated.

The specific processing process of step 1 and step 2 can refer to the process of verifying the consistency of the asset information of the target asset by the asset demand side node on the system side, and the specific processing process of step 3 to step 5 can refer to the processing process of 401 to 403. I won't repeat them here.

In some implementations, the asset demander can filter multiple asset information in the blockchain to determine the target asset to be handed over during the process of browsing asset information through the asset demander node. The processing process includes :

Step I: In response to the asset screening request, search for asset information matching the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain the asset information of the user's intended asset;

Step II: Output the asset information of the user's intended asset; and

Step III: In response to the asset selection request, determine the target asset among the user's intended assets.

The processing process of step I, step II and step III can refer to the processing process of screening multiple asset information in the blockchain by the system-side asset demand side node, which will not be repeated here.

In some implementations, the asset demander node can respond to the asset screening request to find asset information that matches the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain the asset of the user's intended asset information. Then, the asset demander node can output the asset information of the user's intended asset. Afterwards, in response to the asset selection request, the asset demander node can determine the target asset among the user's intended assets. Therefore, it is convenient for the asset demand side to quickly determine the target asset to be handed over.

In some implementations, asset information such as asset transaction contracts and asset ownership certificates may be stored in the blockchain in the form of pictures. Based on this, the embodiments of the present disclosure provide an asset demander node to update the assets of the target asset in the blockchain. The implementation of information, as shown in Figure 6, can include:

601. Perform image recognition processing on the asset information of the target asset to obtain text information representing the asset information of the target asset; and

602. Change the information of the asset holder in the text information to the information of the asset demander.

In some embodiments, an image recognition algorithm can be preset in the asset demand side node, and the asset demand side node can perform image recognition processing on the asset information in the form of a picture through the image recognition algorithm to obtain text information representing the asset information of the target asset .

The image recognition algorithm may be any algorithm with an image recognition function in related technologies, which is not specifically limited in the embodiment of the present disclosure. The process of performing image recognition processing on asset information in the form of pictures through image recognition algorithms can refer to the processing process of performing image recognition on pictures through image recognition algorithms in related technologies, which will not be repeated here.

In some implementations, the asset demander node can perform image recognition processing on the asset information of the target asset to obtain text information representing the asset information of the target asset, and then change the asset holder’s information in the text information to asset demand Party’s information.

For example, the target asset is a real estate, and the asset information of the target asset is the property right certification document of the real estate. The asset demand side node performs image recognition processing on the property right certification document to obtain the text information recorded in the property right certification document. The information of the asset holder in the text message can be the name of the property owner "Xiao Ming". The asset demander node can change the name of the property owner "Xiaoming" to the name of the asset demander "Xiaohong".

As a result, the processing speed of asset information in the form of pictures such as asset transaction contracts and asset ownership certificates can be increased, thereby increasing the asset transaction speed.

In some embodiments, after the asset transfer of the target asset is completed, the asset demander node may also write the current transfer time into the asset information of the target asset to update the transaction record of the target asset.

In some implementation schemes, asset transactions involve the exchange of assets of the asset demander for the assets of the asset holder. Therefore, in order to ensure the successful realization of the asset handover, it is also necessary to transfer the assets of the asset demander to the asset holder. The funds of the asset demander can be stored at the fund depositor, which can be a bank, Internet financial platform, etc., and the fund depositor node can be used as the target supervisor node.

In the asset transaction process, the process by which the fund depositor node transfers the funds of the asset demander to the asset holder can include:

If the first confirmation message sent by the target asset holder node and the target supervisor node is received, a fund freezing request is sent to the fund storage node so that the fund storage node freezes the assets demander's funds and completes the target asset After the asset is handed over, the funds of the asset demander are transferred to the asset holder of the target asset.

Based on the same technical concept, the embodiments of the present disclosure also provide a blockchain-based asset information processing device, which is applied to any asset demander node in the blockchain, and the blockchain also includes at least one asset The holder node and at least one supervisor node, as shown in Figure 7, the device includes:

The issuing module 710 is configured to issue a transfer request of the target asset in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request;

The generating module 720 is configured to generate an asset handover agreement through a pre-configured smart contract when receiving the first confirmation information sent by the target asset holder node and the target supervisor node, and write it in the block Publish the asset transfer agreement in the chain, so that the target asset holder node and the target supervisor node confirm the asset transfer agreement; and

The update module 730 is configured to update the asset information of the target asset in the blockchain when receiving second confirmation information sent by the target asset holder node and the target supervisor node.

In some implementations, the transfer request of the target asset is issued in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request; if the target asset is received The first confirmation message sent by the holder node and the target supervisory node will generate an asset handover agreement through a pre-configured smart contract, and publish the asset handover agreement in the blockchain to enable the target asset holder node and the target to supervise The party node confirms the asset handover agreement; if the second confirmation message sent by the target asset holder node and the target supervisor node is received, the asset information of the target asset in the blockchain is updated.

On the one hand, each node in the blockchain can realize information sharing in the asset information processing process, which improves the security of information storage; on the other hand, the asset information processing method based on the blockchain can achieve “decentralization” and asset holdings. The party node and the asset demand side node can establish an effective and open asset transfer agreement through the blockchain, and the asset information processing efficiency is high, and it is trustworthy; on the other hand, the blockchain can ensure that the asset information written is not It has been tampered with and has traceability, which further ensures the security of asset information processing, thereby solving the problem of the lack of effective supervision of the existing asset handover process.

Based on the same technical concept, the embodiment of the present disclosure also provides an electronic device, as shown in FIG. The communication between each other is completed through the communication bus 804,

The memory 803 is configured to store computer programs; and

The processor 801 is configured to implement the above-mentioned block chain-based real estate information processing method when executing the computer program stored in the memory 803.

The communication bus mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used to indicate in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the above-mentioned electronic device and other devices.

The memory may include random access memory (Random Access Memory, RAM), and may also include non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk storage. In some embodiments, the memory may also be at least one storage device located far away from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (Network Processor, NP), etc.; it may also be a digital signal processor (Digital Signal Processor, DSP), a dedicated integrated Circuit (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

In yet another embodiment provided by the present disclosure, a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, any one of the above-mentioned blockchain-based Asset information processing method.

In another embodiment provided by the present disclosure, a computer program product containing instructions is also provided, which when running on a computer, causes the computer to execute any blockchain-based asset information processing method in the foregoing embodiments.

In the foregoing embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present disclosure are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is any such actual relationship or sequence between entities or operations. Moreover, the terms "including", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

The above are only specific implementations of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A blockchain-based asset information processing system, which includes: asset demander nodes, asset holder nodes, and supervisor nodes;

The asset demander node is configured to issue a transfer request of the target asset in the blockchain;

The target asset holder node and the target supervisor node are configured to confirm the handover request, and after the confirmation is passed, send first confirmation information to the asset demander node, and the target asset holder node is The asset holder node corresponding to the target asset, and the target supervisor node is the supervisor node corresponding to the target asset;

The asset demander node is further configured to generate an asset handover agreement through a pre-configured smart contract when receiving the first confirmation information sent by the target asset holder node and the target supervisor node. Publishing the asset transfer agreement in the blockchain;

The target asset holder node and the target supervisor node are further configured to confirm the asset handover agreement, and after the confirmation is passed, send second confirmation information to the asset demander node; and

The asset demander node is further configured to update the asset information of the target asset in the blockchain when receiving second confirmation information sent by the target asset holder node and the target supervisor node.
The system according to claim 1, wherein the asset demander node is further configured to send first identity verification information of the asset demander to the first authentication node in the blockchain, so that the first authentication The node verifies the first identity verification information; and if the first verification node passes the first identity verification information, it joins the blockchain and obtains an electronic signature distributed by the blockchain chapter.
The system according to claim 1 or 2, wherein the supervisor node is further configured to send second identity verification information of the supervisor to the second authentication node in the blockchain, so that the second authentication The node verifies the second identity verification information; and if the second verification node passes the second identity verification information, it joins the blockchain and obtains an electronic signature distributed by the blockchain chapter.
The system according to any one of claims 1 to 3, wherein the asset holder node is further configured to send asset information of the asset to be handed over to the third authentication node in the blockchain, so that The third authentication node verifies the asset information; and if the third authentication node passes the asset information verification, it joins the blockchain and obtains an electronic signature distributed by the blockchain .
The system according to any one of claims 1 to 4, wherein the asset demander node is further configured to, in response to an asset screening request, search for information related to the asset among multiple asset information contained in the blockchain. Filter the asset information that matches the target asset information carried in the request to obtain the asset information of the user's intended asset;

Output the asset information of the user's intended asset; and

In response to the asset selection request, a target asset is determined among the user's intended assets.
The system according to any one of claims 1 to 5, wherein the asset demander node is further configured to be selected from other nodes included in the blockchain except the target asset holder node , Obtain the first asset information of the target asset; and if the first asset information obtained from the other node is the same as the first asset information obtained from the target asset holder node Second, if the asset information is the same, execute the transfer request step of publishing the target asset in the blockchain.
The system according to any one of claims 1 to 6, wherein the target supervisor node includes a fund depositor node storing funds of an asset demander, wherein,

The asset demander node is configured to send a fund freezing request to the fund depositor node when receiving first confirmation information sent by the target asset holder node and the target supervisor node; and

The asset storage node is configured to freeze the funds of the asset demander, and after completing the asset transfer of the target asset, transfer the funds of the asset demander to the asset holder of the target asset.
A blockchain-based asset information processing method, which is applied to any asset demander node in the blockchain, and the blockchain further includes at least one asset holder node and at least one supervisor node, and the method includes :

Publish the transfer request of the target asset in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request;

If the first confirmation message sent by the target asset holder node and the target supervisor node is received, an asset handover agreement is generated through a pre-configured smart contract, and the asset is released in the blockchain A handover agreement that enables the target asset holder node and the target supervisor node to confirm the asset handover agreement; and

If the second confirmation information sent by the target asset holder node and the target supervisor node is received, the asset information of the target asset in the blockchain is updated.
The method according to claim 8, wherein, before issuing the transfer request of the target asset in the blockchain, the method further comprises:

Obtain the current asset processing status of the target asset; and

If the current asset processing state is the preset handover available state, the step of issuing the handover request of the target asset in the blockchain is executed.
The method according to claim 8 or 9, wherein, before issuing the transfer request of the target asset in the blockchain, the method further comprises:

Obtain the first asset information of the target asset from nodes other than the node of the target asset holder included in the blockchain; and

If the first asset information obtained from the other node is the same as the second asset information of the target asset obtained from the target asset holder node, then execute the blockchain Publish the transfer request steps of the target asset in.
The method according to any one of claims 8 to 10, wherein, before issuing the transfer request of the target asset in the blockchain, the method further comprises:

In response to the asset screening request, search for asset information that matches the target asset information carried in the asset screening request among multiple asset information contained in the blockchain to obtain asset information of the user's intended asset;

Output the asset information of the user's intended asset; and

In response to the asset selection request, a target asset is determined among the user's intended assets.
The method according to any one of claims 8 to 11, wherein the asset information of the target asset is stored in the blockchain in the form of pictures, and the asset information of the target asset in the blockchain is updated. Information, including:

Perform image recognition processing on the asset information of the target asset to obtain text information representing the asset information of the target asset; and

Change the information of the asset holder in the text information to the information of the asset demander.
The method according to any one of claims 8 to 12, wherein the target supervisor node comprises a fund depositor node storing funds of the asset demander, and the method further comprises:

If the first confirmation message sent by the target asset holder node and the target supervisor node is received, send a fund freezing request to the fund depositor node, so that the fund depositor node freezes the asset demand After completing the transfer of the assets of the target asset, transfer the funds of the asset demander to the asset holder of the target asset.
A block chain-based asset information processing device, which is applied to any asset demander node in the block chain, the block chain also includes at least one asset holder node and at least one supervisor node, and the device includes :

The publishing module is configured to publish the transfer request of the target asset in the blockchain, so that the target asset holder node corresponding to the target asset and the target supervisor node corresponding to the target asset confirm the transfer request;

The generation module is configured to generate an asset handover agreement through a pre-configured smart contract when receiving the first confirmation information sent by the target asset holder node and the target supervisor node, and record it on the blockchain Issue the asset transfer agreement in, so that the target asset holder node and the target supervisor node confirm the asset transfer agreement; and

The update module is configured to update the asset information of the target asset in the blockchain when the second confirmation information sent by the target asset holder node and the target supervisor node is received.
An electronic device, which includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete mutual communication through the communication bus;

The memory is configured to store a computer program; and

The processor is configured to implement the method according to any one of claims 8 to 13 when executing the computer program stored on the memory.
A computer-readable storage medium that stores a computer program that, when executed by a processor, implements the method described in any one of claims 8 to 13.