CN116566666A

CN116566666A - Block chain-based data processing method, system and device

Info

Publication number: CN116566666A
Application number: CN202310505599.3A
Authority: CN
Inventors: 祝贵可
Original assignee: Zhejiang eCommerce Bank Co Ltd
Current assignee: Zhejiang eCommerce Bank Co Ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-08-08

Abstract

The embodiment of the specification provides a data processing method, a system and a device based on a blockchain, wherein the data processing method based on the blockchain is applied to a blockchain node corresponding to a data provider, and comprises the following steps: determining item data corresponding to a target item; uploading the project data to a blockchain, and creating a data certificate according to a uplink result and the project data; constructing data use information according to the credit data and the data certificate corresponding to the data provider, and issuing the data use information on the blockchain; and responding to a selection request submitted by a data demand party for the published data use information, transferring the data certificate to the data demand party, and distributing the use permission of the project data for the data demand party.

Description

Block chain-based data processing method, system and device

Technical Field

The embodiment of the specification relates to the technical field of blockchains, in particular to a data processing method, a system and a device based on blockchains.

Background

With the development of internet technology, blockchains are being applied in more and more scenes; blockchains are novel application modes of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanisms, encryption algorithms, and the like. Blockchains are a kind of chained data structures that combine blocks of data in a sequential manner in time order, and cryptographically guaranteed, non-tamperable and non-counterfeitable distributed ledgers. Because the blockchain has the characteristics of decentralization, non-tamperability of information, autonomy and the like, the blockchain is also receiving more and more attention and application. Especially in the more important scene of data security requirement, can effectually prevent that data from being tampered through the blockchain to influence the normal operating of business. In the prior art, the use of blockchains is mostly applied to specific business scenes based on the characteristics of the blockchains, so as to realize the protection of data in the specific business scenes by combining the characteristics of the blockchains, but most of the application is only implemented in a shallow level, and is not applicable to business scenes with complex data and non-uniform data management, so that an effective scheme is needed to solve the problems.

Disclosure of Invention

In view of this, the present description embodiments provide a blockchain-based data processing method. One or more embodiments of the present specification are also directed to a blockchain-based data processing system, a blockchain-based data processing device, a computing device, a computer-readable storage medium, and a computer program that address the technical deficiencies of the prior art.

According to a first aspect of embodiments of the present disclosure, there is provided a data processing method based on a blockchain, applied to a blockchain node corresponding to a data provider, including:

determining item data corresponding to a target item;

uploading the project data to a blockchain, and creating a data certificate according to a uplink result and the project data;

constructing data use information according to the credit data and the data certificate corresponding to the data provider, and issuing the data use information on the blockchain;

and responding to a selection request submitted by a data demand party for the published data use information, transferring the data certificate to the data demand party, and distributing the use permission of the project data for the data demand party.

According to a second aspect of embodiments of the present disclosure, there is provided another blockchain-based data processing method applied to a blockchain node corresponding to a data demander, including:

Submitting a selection instruction aiming at data use information issued on a blockchain;

responding to the selection instruction to load application resources, creating a selection request according to the application resources and the selection instruction, and sending the selection request to a data provider corresponding to the data use information;

and under the condition that the data credentials fed back by the data provider for the selection request are received, acquiring item data corresponding to the data use information according to the data credentials.

According to a third aspect of embodiments of the present specification, there is provided a blockchain-based data processing system, comprising:

the data provider is used for determining project data corresponding to a target project, uploading the project data to a blockchain, creating a data certificate according to a uplink result and the project data, constructing data use information according to credit data corresponding to the data provider and the data certificate, and publishing the data use information on the blockchain;

the data demand party is used for submitting a selection instruction aiming at the data use information issued on the blockchain, loading application resources in response to the selection instruction, creating a selection request according to the application resources and the selection instruction, and sending the selection request to the data provider;

And the data provider is further used for responding to the selection request, transferring the data certificate to the data demander and distributing the use authority of the project data to the data demander.

According to a fourth aspect of embodiments of the present disclosure, there is provided a blockchain-based data processing apparatus, applied to a blockchain node corresponding to a data provider, including:

the determining data module is configured to determine item data corresponding to a target item;

a create credential module configured to upload the project data to a blockchain and create a data credential based on a result of the uplink and the project data;

the issuing information module is configured to construct data use information according to the credit data corresponding to the data provider and the data certificate and issue the data use information on the blockchain;

and the allocation authority module is configured to respond to a selection request submitted by a data demand party for the published data use information, transfer the data certificate to the data demand party and allocate the use authority of the project data for the data demand party.

According to a fifth aspect of embodiments of the present disclosure, there is provided another blockchain-based data processing apparatus for application to a blockchain node corresponding to a data demander, including:

A commit instruction module configured to commit select instructions for data usage information published on the blockchain;

the loading resource module is configured to load application resources in response to the selection instruction, create a selection request according to the application resources and the selection instruction, and send the selection request to a data provider corresponding to the data use information;

and the data acquisition module is configured to acquire project data corresponding to the data use information according to the data certificate under the condition that the data certificate fed back by the data provider for the selection request is received.

According to a sixth aspect of embodiments of the present specification, there is provided a computing device comprising:

a memory and a processor;

the memory is configured to store computer-executable instructions that, when executed by the processor, perform the steps of the blockchain-based data processing method described above.

According to a seventh aspect of embodiments of the present specification, there is provided a computer readable storage medium storing computer executable instructions which, when executed by a processor, implement the steps of the blockchain-based data processing method described above.

According to an eighth aspect of embodiments of the present specification, there is provided a computer program, wherein the computer program, when executed in a computer, causes the computer to perform the steps of the above-described blockchain-based data processing method.

According to the data processing method based on the blockchain, in order to realize unified management of project data associated with target projects, the data can be guaranteed to be unique to a user, the processing of the target projects can be more reasonably standardized, the project data corresponding to the target projects can be determined at a data provider, and the project data can be uploaded to the blockchain, so that the fact that the data cannot change is guaranteed by utilizing the non-tamperable characteristic of the blockchain; thereafter, to enable the data to be authorized for use by a party having a need for use, corresponding data credentials may be created from the data-on results and the project data to construct data-use information in conjunction with the credit data of the data provider for distribution over the blockchain. The method has the advantages that the party with the data use requirement can apply for the data certificate on the blockchain according to the requirement aiming at the issued data use information, so that after application, the data certificate is transferred to the data requiring party, the use authority of the project data is distributed to the data requiring party, the project data can be only authorized to the party with the data certificate, and the problem of multi-head use and multi-head trust is avoided.

Drawings

FIG. 1 is a schematic diagram of a blockchain-based data processing method provided in an embodiment of the present disclosure;

FIG. 2 is a flow chart of a blockchain-based data processing method provided by an embodiment of the present disclosure;

FIG. 3 is a flow chart of another blockchain-based data processing method provided by an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a block chain based data processing system according to one embodiment of the present disclosure;

FIG. 5 is a process flow diagram of a blockchain-based data processing system provided by one embodiment of the present description;

FIG. 6 is a schematic diagram of a block chain based data processing apparatus according to one embodiment of the present disclosure;

FIG. 7 is a schematic diagram of another block chain based data processing apparatus according to one embodiment of the present disclosure;

FIG. 8 is a block diagram of a computing device provided in one embodiment of the present description.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present description. This description may be embodied in many other forms than described herein and similarly generalized by those skilled in the art to whom this disclosure pertains without departing from the spirit of the disclosure and, therefore, this disclosure is not limited by the specific implementations disclosed below.

The terminology used in the one or more embodiments of the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of the specification. As used in this specification, one or more embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present specification refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that, although the terms first, second, etc. may be used in one or more embodiments of this specification to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be referred to as a second, and similarly, a second may also be referred to as a first, without departing from the scope of one or more embodiments of the present description. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

Furthermore, it should be noted that, user information (including, but not limited to, user equipment information, user personal information, etc.) and data (including, but not limited to, data for analysis, stored data, presented data, etc.) according to one or more embodiments of the present disclosure are information and data authorized by a user or sufficiently authorized by each party, and the collection, use, and processing of relevant data is required to comply with relevant laws and regulations and standards of relevant countries and regions, and is provided with corresponding operation entries for the user to select authorization or denial.

First, terms related to one or more embodiments of the present specification will be explained.

NFT: the Non-homogeneous Token is a trusted digital rights voucher with unique characteristics in a blockchain network, and is a data object capable of recording and processing multidimensional and complex attributes on the blockchain.

In this specification, a blockchain-based data processing method is provided, and this specification relates to a blockchain-based data processing system, a blockchain-based data processing apparatus, a computing device, and a computer-readable storage medium, which are described in detail in the following embodiments one by one.

In practical application, in loan service scenarios, such as business scenarios of winning a bid, contracting a bid, supplying a goods, etc., data of each party needs to be introduced and verification is carried out; however, with the current stricter data privacy and data security protection, and the data disconnection of the data demander and the data provider, the data use needs to be completed according to the specifications, so an effective scheme is needed to solve the above problems.

Referring to the schematic diagram shown in fig. 1, in order to realize unified management of item data associated with a target item, and ensure that a data party is unique, processing of the target item is more reasonably standardized, item data corresponding to the target item can be determined at a data provider, and uploading of the item data to a blockchain is realized, so that the situation that the data cannot change is ensured by utilizing the tamper-proof characteristic of the blockchain; thereafter, to enable the data to be authorized for use by a party having a need for use, corresponding data credentials may be created from the data-on results and the project data to construct data-use information in conjunction with the credit data of the data provider for distribution over the blockchain. The method has the advantages that the party with the data use requirement can apply for the data certificate on the blockchain according to the requirement aiming at the issued data use information, so that after application, the data certificate is transferred to the data requiring party, the use authority of the project data is distributed to the data requiring party, the project data can be only authorized to the party with the data certificate, and the problem of multi-head use and multi-head trust is avoided.

Referring to fig. 2, fig. 2 shows a flowchart of a blockchain-based data processing method according to an embodiment of the present disclosure, where the method is applied to a blockchain node corresponding to a data provider, and specifically includes the following steps.

Step S202, determining item data corresponding to the target item.

The data processing method based on the blockchain provided by the embodiment can be applied to a data application scene, for example, partial data owned by a data holder can be transferred to other parties for use, and data sharing can be completed through the data processing method based on the blockchain provided by the embodiment; or applied to enterprise purchasing scenarios, such as purchasing enterprises can transfer bidding data or purchasing agreements to other parties for providing subsequent business services, such as funding, etc., for enterprises having purchasing needs; still further or may be applied to a delivery scenario, such as where a goods demander may transfer a delivery contract or the like to other parties for use in providing subsequent business services, such as funds or goods or the like, to an enterprise having shopping needs.

In this embodiment, the data processing method based on the blockchain is described by taking enterprise purchasing as an example, and descriptions of other scenes can be referred to the same or corresponding descriptions of this embodiment, which are not described in detail herein. Accordingly, the data provider specifically refers to an enterprise with a purchasing requirement, and may also be a third party enterprise that provides purchasing services for the enterprise with the purchasing requirement, where the third party enterprise may assist the enterprise with the purchasing requirement in performing purchasing operations of the object. Correspondingly, the block chain link point is specifically a block chain node corresponding to the data provider, and the block chain to which the block chain link point belongs is a block chain corresponding to the data provider and a alliance chain formed by the block chains corresponding to the data demander, and is used for providing data processing service for the data provider and the data demander through the block chain.

Correspondingly, the target item specifically refers to an item with a data processing requirement, such as an enterprise purchasing item, a data sharing item, a supply item and the like, and the corresponding item data is data which corresponds to the target item and needs to be uploaded to a blockchain, such as in the enterprise purchasing item, the item data is enterprise marking showing data, enterprise purchasing contract data and the like; for example, the target item is a data sharing item, and the item data is data sharing contract data; for example, the target item is a supply item, and the item data is enterprise supply contract data; in practical applications, the project data may be set according to project requirements, which is not limited in this embodiment.

Based on the above, when the data provider has a data transfer requirement, the data provider can firstly determine the data to be transferred, namely, determine the project data corresponding to the target project associated with the data provider, so that the data can be conveniently uploaded to the blockchain through the corresponding blockchain node, and the data can be conveniently shared and transferred through the blockchain, thereby being convenient for other data consumers to use.

Step S204, uploading the project data to a blockchain, and creating a data certificate according to the uplink result and the project data.

Specifically, after determining the item data corresponding to the target item, in order to be convenient for other data consumers to use, the item data may be uploaded to the blockchain to publish the item data on the chain; on the basis, in order to avoid random sharing of the project data by the data demand party and thus influence the data security of the data provider, a data certificate of the project data which is uniquely corresponding to the project data can be created according to the uplink result of the project data and the project data, so that when the project data is used by the data demand party later, the data certificate can be applied first, and then the project data can be acquired for use based on the data certificate. While other data demander will not have the use right of the project data without holding the data credentials, thereby ensuring the security of the project data.

The data credential specifically refers to a unique credential corresponding to the item data after being uploaded to the blockchain, the data credential can be replaced by a transferable resource, and the item data can be used only by a data requiring party holding the data credential; it should be noted that the data certificate may also be transferred; wherein the data credential may be an NFT.

Further, in the process of data uplink, the uplink may be performed by adopting a hash calculation manner, and in this embodiment, the specific implementation manner is as follows:

carrying out hash operation on the item data to obtain a target hash value; uploading the target hash value to the blockchain, and determining uplink information corresponding to the project data according to an uplink result; and creating the data credential according to the uplink information and the project data.

Specifically, the target hash value specifically refers to a hash value obtained after performing hash operation on the project data; accordingly, the uplink information specifically refers to corresponding information after uploading the target hash value to the blockchain, including but not limited to the block height. For proving successful linking of project data.

Based on the above, when the project data is uplink, the project data can be firstly subjected to hash operation to obtain a target hash value; thereafter, the target hash value may be uploaded to the blockchain to determine uplink information corresponding to the project data according to the uplink result; and finally, creating a data certificate according to the uplink information and the project data so as to facilitate the subsequent use.

For example, when enterprise A has a purchase demand, enterprise A distributes the purchase order to enterprise B to assist in completing the purchase of the associated item. At this time, the enterprise B performs Hash operation on the purchase contract with the enterprise A, and uploads the Hash1 value to the alliance chain, and then in order to facilitate other institutions to perform subsequent business processing for the purchase, an NFT (network File transfer function) can be created according to the uplink result and the content of the purchase contract, so that the other institutions can obtain the purchase contract to perform purchase related processing in a manner of purchasing the NFT conveniently.

In conclusion, the project data is managed by adopting the hash operation and the data certificate creation mode, so that the project data can be more conveniently used on the premise of safety, and the data safety is ensured.

And step S206, constructing data use information according to the credit data corresponding to the data provider and the data certificate, and issuing the data use information on the blockchain.

Specifically, after the data credentials corresponding to the project data are determined, in order to facilitate other data requesters to apply for the project data according to their own needs, data usage information can be constructed according to credit data and data credentials corresponding to the data providers, so that the data usage information is published on the blockchain, thereby facilitating other data requesters to apply for the data credentials according to published contents, and the project data can be used after the application is successful.

The credit data specifically refers to credit data corresponding to the data provider and is used for representing credit security of the data provider, and the corresponding data use information specifically refers to application data credentials and management information of the project data and is used for standardizing conditions of the application data credentials and conditions of the use of the project data; for example, the resource to be transferred for applying the data certificate, the funds to be paid, the credit level to be reached, etc., and when the specific application is performed, the data usage information may be set according to the actual service scenario, and the embodiment is not limited in any way.

Further, in order to further ensure the security of the project data being used when the data usage information is issued, the data usage information may be constructed in combination with credit information, and in this embodiment, the specific implementation manner is as follows:

loading scoring data and compliance data corresponding to the data provider, and generating the credit data according to the scoring data and the compliance data; determining resource limit information and credit mark information according to the credit data and the data certificate; and constructing the data use information based on the resource amount information and the credit mark information, and publishing the data use information on the blockchain.

Specifically, the scoring data specifically refers to data obtained by scoring the data provider from different dimensions, and is used for representing comprehensive evaluation of the data provider; correspondingly, the compliance data specifically refers to credit investigation data corresponding to the data provider and is used for reasonably positioning data use information; correspondingly, the resource quota information specifically refers to resource quota information which needs to be transferred when the data certificate is applied; correspondingly, the credit information specifically refers to credit information which is required to be achieved when the data certificate is applied.

Based on the above, in order to share project data to a data requiring party with requirements and ensure data security, scoring data and compliance data corresponding to a data provider can be loaded first to generate credit data according to the scoring data and the compliance data; the resource credit information and the credit mark information can be determined according to the credit data and the data certificate, a threshold for applying for the data certificate is primarily defined, the data use information is constructed based on the resource credit information and the credit mark information, and the data use information is published on the blockchain so as to realize the disclosure of the data use information to all nodes on the blockchain, any node can apply for the data certificate according to the data use information according to own requirements, so that the use authority of project data can be obtained after the data certificate is applied, and the downstream service is convenient to use.

Along with the above example, after purchasing and linking, comprehensive grading data of the B enterprise can be loaded first, credit investigation data of the B enterprise can be calculated by combining with issued NFT, credit and pricing corresponding to purchasing contracts of the B enterprise can be calculated, the credit and pricing of purchasing contracts of the B enterprise can be issued on a blockchain at the moment, and any institution can purchase the NFT according to the credit and pricing to obtain purchasing contracts of the B enterprise after purchasing the NFT for subsequent purchasing business processing.

In summary, when the data usage information is constructed, in order to realize that the data is used in a security scene, the determination of the resource limit information and the credit mark information can be completed by combining the grading data and the compliance data of the data provider, and the data usage information is constructed by the determination, so that the data certificate is not excessively transferred, and the use compliance of the data is improved.

Step S208, responding to a selection request submitted by a data demand party for the issued data use information, transferring the data certificate to the data demand party, and distributing the use authority of the project data for the data demand party.

Specifically, after the data usage information is published on the blockchain, further, when the data demand party has the usage requirement of the project data, a selection request can be submitted aiming at the published data usage information, at this time, the data certificate can be transferred to the data demand party according to the selection request of the data demand party, and meanwhile, the data demand party is assigned the usage permission of the project data so as to facilitate the data demand party to request the project data to carry out subsequent processing according to the demand. And, after the data credential is transferred to the data demander, the data demander holding the data credential will only be able to use the item data.

It should be noted that, in order to improve the security of data usage, after the data credential is transferred to the data demander, the data credential is published on the blockchain, so as to avoid other demander from applying for the data credential again.

Further, when data credential transfer and use authority allocation are performed, identity verification may be performed on the data demander first, so that subsequent processing may be performed according to the verification result, and in this embodiment, the specific implementation manner is as follows:

receiving a selection request submitted by the data demand guideline for the published data use information; analyzing the selection request to determine application resources, and carrying out identity verification on the data requiring party according to the application resources; in the case that the verification passes, a step of transferring the data voucher to the data demander and assigning a use right of the item data to the data demander is performed.

Specifically, the application resource specifically refers to a resource which needs to be transferred to a data provider when the data certificate is applied; correspondingly, identity verification specifically refers to the operation of performing identity verification on the data requiring party. Based on the above, when the data demand side applies for the data certificate, the data demand side can carry out identity verification in consideration of the data security problem, namely after receiving the selection request submitted by the data demand side aiming at the published data use information, the data demand side can analyze the selection request to determine the application resource first, and then carry out identity verification on the data demand side according to the application resource; and if the verification passes, the step of transferring the data certificate to the data demander and distributing the use authority of the item data to the data demander is carried out.

In addition, under the condition that verification is not passed, reminding information can be sent to the data demand party and used for reminding the data demand party that the project data cannot be obtained.

Along using the above example, after the C mechanism submits the purchase request to the NFT issued on the blockchain, the purchase request is sent to the B enterprise at this time, the B enterprise can perform identity verification on the C mechanism according to the offer of the C mechanism and the credit line corresponding to the offer, and under the condition that the verification passes, the NFT can be issued to the C mechanism, so that the C mechanism can acquire the purchase contract to perform subsequent purchase business processing.

By integrating, the compliance of data use is ensured by means of identity verification of the data demander, so that the data can be ensured to be used in a safe environment.

In addition, when the data credential is transferred, in order to avoid misuse of the item data, the usage rights may be recovered, and in this embodiment, the specific implementation manner is as follows:

determining a data transfer party according to a transfer request submitted by the data demand party for the data certificate under the condition that the transfer request is received; creating a transfer task for the data transfer party and executing the transfer task; the usage rights of the item data are retracted for the data demander and the usage rights of the item data are allocated for the data transfer party.

Specifically, the transfer request specifically refers to a request for transferring the data credential to other data requesters, that is, to the data transferee, and the transfer task specifically refers to a transfer task created by the data credential, so that the data requester can transfer the data credential to the data transferee.

Based on the above, when a transfer request submitted by the data demand party for the data credential is received, the data demand party transfers the data credential to other demand parties, and then the data transfer party can be determined according to the transfer request; at the moment, a transfer task is established and executed for the data transfer party; meanwhile, in order to avoid the data from being used by multiple heads, the use permission of the project data can be retracted for the data demand party and the use permission of the project data can be distributed for the data transfer party. The data transfer party can continue to use the item data conveniently.

Along with the above example, after purchasing the NFT by the C mechanism, if the C mechanism resells the NFT to the D mechanism, the NFT may be transferred to the D mechanism and published on the blockchain at this time, and in order to avoid the data being used by multiple heads, only the NFT may be trusted to the D mechanism, and the use authority of the C mechanism is retracted, that is, only the mechanism holding the NFT may use the purchase contract, thereby ensuring data security.

Referring to fig. 3, fig. 3 shows a flowchart of another blockchain-based data processing method provided in accordance with an embodiment of the present disclosure, which is applied to a blockchain node corresponding to a data demander, and specifically includes the following steps.

Step S302, submitting a selection instruction for data usage information issued on the blockchain.

And step S304, loading application resources in response to the selection instruction, creating a selection request according to the application resources and the selection instruction, and sending the selection request to a data provider corresponding to the data use information.

Step S306, when receiving the data credential fed back by the data provider for the selection request, acquiring the item data corresponding to the data usage information according to the data credential.

It should be noted that, in this embodiment, descriptions that are not described in detail may be referred to the same or corresponding descriptions in the foregoing embodiments, and this embodiment is not described in detail herein.

Specifically, the selection instruction is specifically an instruction submitted by the data demander for the data usage information published on the blockchain; correspondingly, the application resource is a transferable resource applied by the pointer to the data certificate corresponding to the data use information. Based on the above, after the data provider issues the data usage information on the blockchain, if the data demander has a usage requirement, the selection instruction can be submitted for the data usage information at this time, and in order to successfully acquire the data credentials and use the project data, the application resource can be loaded first, and then the selection request is created by combining the application resource and the selection instruction, so that the selection request is sent to the data provider corresponding to the data usage information. And if the data provider determines that the data use permission can be allocated to the data demand party, the data certificate can be transferred to the data demand party, so that the data demand party can request the project data to be used according to the data certificate.

For example, after the B enterprise issues the NFT corresponding to the purchase contract on the blockchain, if the C organization has a purchase requirement, the NFT may be issued to the C organization when the C organization meets the condition in response to the purchase requirement, and the C organization may request the purchase contract according to the NFT, so as to facilitate subsequent use.

In order to realize that the data demand party can independently share data and cannot generate excessive credit, the data demand party submits a selection instruction for the data use information issued on the blockchain, at the moment, a resource can be applied according to the instruction to create a selection request to be sent to the data provider, the data provider responds to the request to transfer the data information related data certificate, and the data demand party can replace the data certificate according to the application resource, so that the data demand party can enjoy the use authority of project data, and can conveniently carry out subsequent business processing according to the project data.

Further, in order to ensure data security when requesting for project data, the data demand side is completed according to the data certificate, and in this embodiment, the specific implementation manner is as follows:

Receiving the data credentials fed back by the data provider for the selection request; creating a data acquisition request according to the data certificate and sending the data acquisition request to the data provider; and receiving the project data fed back by the data provider for the data acquisition request.

Specifically, the data acquisition request is specifically a request for acquiring project data from a data demander, and the request is created based on a data credential. Based on the data, under the condition that the data credential fed back by the data provider aiming at the selection request is received, the data demand party can create a data acquisition request according to the data credential and send the data acquisition request to the data provider; the data provider confirms that the data demand side can provide the project data to the data demand side under the condition that the data demand side holds the data certificate, and the data demand side can receive the project data fed back by the data provider aiming at the data acquisition request for subsequent service processing.

In addition, when the data demander needs to transfer the data credential, the transfer result may be issued after the transfer is completed, so as to ensure that each party on the blockchain can determine the holder of the data credential, and in this embodiment, the specific implementation manner is as follows:

Generating a transfer request according to a transfer instruction and sending the transfer request to the data provider under the condition that the transfer instruction submitted for the data certificate is received; responding to an execution result of the transfer task corresponding to the transfer request executed by the data provider, and transferring the data certificate to a data transfer party corresponding to the transfer instruction; and determining transfer information according to the transfer result of the data certificate, and issuing on the blockchain.

Based on this, in the case of receiving a transfer instruction submitted for the data credential, a transfer request may be generated at this time from the transfer instruction and sent to the data provider; the data provider can establish and execute a transfer task according to the transfer request, and at the moment, the data demand side can respond to the execution result of the transfer task corresponding to the transfer request executed by the data provider and transfer the data certificate to the data transfer side corresponding to the transfer instruction; meanwhile, in order to be able to advertise the transfer result, the transfer information can be determined according to the transfer result of the data certificate and issued on the blockchain.

In summary, after transferring the data credentials, in order to avoid the problem of multi-head use of data, transfer information may be issued on the blockchain to inform other nodes of the holder of the data credentials, so as to facilitate subsequent service use.

In addition, in order to avoid that the data provider affects the compliance of data usage due to abnormal operation, trace-back verification can be performed, and in this embodiment, the specific implementation manner is as follows:

under the condition of receiving a data tracing request, analyzing the data tracing request to obtain target item data; loading data uplink information corresponding to the project data on the blockchain according to the data credentials; and verifying the data uplink information based on the target item data, and taking a verification result as a response of the data tracing request.

Specifically, the data tracing request specifically refers to a request for tracing the uplink information, and is used for verifying the uplink information; correspondingly, the target item data specifically refers to real item data corresponding to the target item, and is used for verifying the data uplink information. Accordingly, the data uplink information is specifically information recorded by the data provider after the data is uplink, and is not tamperable based on the characteristic of the blockchain.

Based on the above, considering that the data provider does not necessarily have the most original provider of the data item data, in order to avoid tampering when the data is linked up, the data tracing request can be analyzed to obtain the target item data under the condition that the data tracing request is received; thereafter, data uplink information corresponding to the project data can be loaded on the blockchain according to the data credentials; the method and the device are used for verifying the data uplink information based on the target item data, and the verification result is used as a response of the data tracing request, so that the corresponding processing operation based on the verification result can be conveniently carried out.

Along the above example, when the entity C needs to verify the purchase contract, the block chain may first load the uplink information of the purchase contract, and then verify the uplink information based on the purchase contract obtained from the enterprise a, and if the purchase contract obtained from the enterprise a is the same as the purchase contract of the enterprise B, it is indicated that the enterprise B does not modify the purchase contract. Otherwise, the enterprise B is informed of the purchase contract after modification, and the follow-up compliance processing is carried out.

In order to achieve that the data-requiring party can independently share data and cannot generate excessive credit, the data-requiring party can submit a selection instruction to the data-using information issued on the blockchain according to the instruction application resource, a selection request can be created at this time and sent to the data provider, the data provider responds to the request to transfer the data-using information related data certificate, and the data-requiring party can replace the data certificate according to the application resource, so that the data-requiring party can enjoy the use authority of project data, and the data-requiring party can conveniently conduct subsequent service processing according to the project data.

Corresponding to the above method embodiments, the present disclosure further provides a blockchain-based data processing system embodiment, and fig. 4 is a schematic structural diagram of a blockchain-based data processing system according to an embodiment of the present disclosure. As shown in FIG. 4, a blockchain-based data processing system 400 includes a data provider 410 and a data demander 420;

A data provider 410, configured to determine item data corresponding to a target item, upload the item data to a blockchain, create a data credential according to a uplink result and the item data, construct data usage information according to credit data corresponding to the data provider and the data credential, and issue the data usage information on the blockchain;

a data demander 420, configured to submit a selection instruction for data usage information issued on the blockchain, load an application resource in response to the selection instruction, create a selection request according to the application resource and the selection instruction, and send the selection request to the data provider;

the data provider 410 is further configured to transfer the data credential to the data demander in response to the selection request, and allocate a usage right of the item data to the data demander.

In an alternative embodiment, the data provider 410 is further configured to perform a hash operation on the item data to obtain a target hash value; uploading the target hash value to the blockchain, and determining uplink information corresponding to the project data according to an uplink result; and creating the data credential according to the uplink information and the project data.

In an optional embodiment, the data provider 410 is further configured to load scoring data and compliance data corresponding to the data provider, and generate the credit data according to the scoring data and the compliance data; determining resource limit information and credit mark information according to the credit data and the data certificate; and constructing the data use information based on the resource amount information and the credit mark information, and publishing the data use information on the blockchain.

In an alternative embodiment, the data provider 410 is further configured to receive a selection request submitted by the data demand party for published data usage information; analyzing the selection request to determine application resources, and carrying out identity verification on the data requiring party according to the application resources; in the case that the verification passes, a step of transferring the data voucher to the data demander and assigning a use right of the item data to the data demander is performed.

In an optional embodiment, the data provider 410 is further configured to, when receiving a transfer request submitted by the data demander for the data credential, determine a data transferor according to the transfer request; creating a transfer task for the data transfer party and executing the transfer task; the usage rights of the item data are retracted for the data demander and the usage rights of the item data are allocated for the data transfer party.

In an alternative embodiment, the data demander 420 is further configured to receive the data credential fed back by the data provider for the selection request; creating a data acquisition request according to the data certificate and sending the data acquisition request to the data provider; and receiving the project data fed back by the data provider for the data acquisition request.

In an optional embodiment, the data demander 420 is further configured to, when receiving a transfer instruction submitted for the data credential, generate a transfer request according to the transfer instruction and send the transfer request to the data provider; responding to an execution result of the transfer task corresponding to the transfer request executed by the data provider, and transferring the data certificate to a data transfer party corresponding to the transfer instruction; and determining transfer information according to the transfer result of the data certificate, and issuing on the blockchain.

In an optional embodiment, the data demander 420 is further configured to, in a case that a data trace back request is received, parse the data trace back request to obtain target item data; loading data uplink information corresponding to the project data on the blockchain according to the data credentials; and verifying the data uplink information based on the target item data, and taking a verification result as a response of the data tracing request.

In summary, in order to realize unified management of item data associated with a target item, and ensure that a data user is unique, processing of the target item is more reasonably standardized, item data corresponding to the target item can be determined at a data provider, and uploading of the item data to a blockchain is realized, so that the situation that the data cannot change is ensured by utilizing the non-tamperable characteristic of the blockchain; thereafter, to enable the data to be authorized for use by a party having a need for use, corresponding data credentials may be created from the data-on results and the project data to construct data-use information in conjunction with the credit data of the data provider for distribution over the blockchain. The method has the advantages that the party with the data use requirement can apply for the data certificate on the blockchain according to the requirement aiming at the issued data use information, so that after application, the data certificate is transferred to the data requiring party, the use authority of the project data is distributed to the data requiring party, the project data can be only authorized to the party with the data certificate, and the problem of multi-head use and multi-head trust is avoided.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a blockchain-based data processing system, the description is relatively simple as it is substantially similar to a blockchain-based data processing method embodiment, as relevant to the description of the blockchain-based data processing method embodiment.

The blockchain-based data processing system provided herein will be further described with reference to fig. 5, taking as an example the application of the blockchain-based data processing system in an item procurement scenario. FIG. 5 is a flowchart illustrating a process for a blockchain-based data processing system in accordance with an embodiment of the present disclosure, including the following steps.

In step S502, the data provider determines item data corresponding to the target item.

In step S504, the data provider performs hash operation on the item data to obtain a target hash value, uploads the target hash value to the blockchain, determines uplink information corresponding to the item data according to the uplink result, and creates a data credential according to the uplink information and the item data.

Step S506, the data provider loads the corresponding grading data and the corresponding compliance data, generates credit data according to the grading data and the compliance data, determines resource limit information and credit mark information according to the credit data and the data certificate, constructs data use information based on the resource limit information and the credit mark information, and issues the data use information on the blockchain.

In step S508, the data demand party submits a selection instruction for the data usage information issued on the blockchain, loads the application resource in response to the selection instruction, creates a selection request according to the application resource and the selection instruction, and sends the selection request to the data provider.

And S510, the data provider analyzes the selection request to determine application resources, performs identity verification on the data demand side according to the application resources, transfers the data certificate to the data demand side under the condition that verification passes, and distributes the use permission of the project data for the data demand side.

In step S512, when receiving the transfer instruction submitted for the data credential, the data demander generates a transfer request according to the transfer instruction and sends the transfer request to the data provider, and transfers the data credential to the data transferer corresponding to the transfer instruction in response to the execution result of the transfer task corresponding to the transfer request executed by the data provider.

In step S514, the data provider withdraws the usage rights of the item data to the data demander and allocates the usage rights of the item data to the data transfer party.

Corresponding to the above method embodiments, the present disclosure further provides an embodiment of a blockchain-based data processing device, and fig. 6 is a schematic structural diagram of a blockchain-based data processing device according to an embodiment of the present disclosure. As shown in fig. 6, the apparatus is applied to a blockchain node corresponding to a data provider, and includes:

a determining data module 602 configured to determine item data corresponding to the target item;

a create credential module 604 configured to upload the project data to a blockchain and create a data credential based on the uplink result and the project data;

a release information module 606 configured to construct data usage information according to the credit data and the data credentials corresponding to the data provider, and release the data usage information on the blockchain;

an allocation rights module 608 is configured to transfer the data credentials to the data demander in response to a selection request submitted by the data demander for published data usage information, and to allocate usage rights for the item data for the data demander.

In an alternative embodiment, the creation credential module 604 is further configured to:

In an alternative embodiment, the post information module 606 is further configured to:

In an alternative embodiment, the assign rights module 608 is further configured to:

In an alternative embodiment, the apparatus further comprises:

a transfer module configured to determine a data transfer party according to a transfer request submitted by the data demander for the data credential upon receiving the transfer request; creating a transfer task for the data transfer party and executing the transfer task; the usage rights of the item data are retracted for the data demander and the usage rights of the item data are allocated for the data transfer party.

According to the data processing device based on the blockchain, in order to realize unified management of project data associated with target projects, the data can be ensured to be unique by a user, the processing of the target projects can be more reasonably standardized, the project data corresponding to the target projects can be determined at a data provider, and the project data can be uploaded to the blockchain, so that the data cannot be changed by utilizing the non-tamperable characteristic of the blockchain; thereafter, to enable the data to be authorized for use by a party having a need for use, corresponding data credentials may be created from the data-on results and the project data to construct data-use information in conjunction with the credit data of the data provider for distribution over the blockchain. The method has the advantages that the party with the data use requirement can apply for the data certificate on the blockchain according to the requirement aiming at the issued data use information, so that after application, the data certificate is transferred to the data requiring party, the use authority of the project data is distributed to the data requiring party, the project data can be only authorized to the party with the data certificate, and the problem of multi-head use and multi-head trust is avoided.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a blockchain-based data processing device, since it is substantially similar to a blockchain-based data processing method embodiment, the description is relatively simple, with reference to a partial description of the blockchain-based data processing method embodiment.

Corresponding to the above method embodiments, the present disclosure further provides another embodiment of a blockchain-based data processing device, and fig. 7 is a schematic structural diagram of another blockchain-based data processing device according to an embodiment of the present disclosure. As shown in fig. 7, the apparatus is applied to a blockchain node corresponding to a data provider, and includes:

a commit instruction module 702 configured to commit select instructions for data usage information issued on the blockchain;

a loading resource module 704 configured to load an application resource in response to the selection instruction, create a selection request according to the application resource and the selection instruction, and send the selection request to a data provider corresponding to the data usage information;

And the data acquisition module 706 is configured to acquire the item data corresponding to the data use information according to the data credential when the data credential fed back by the data provider for the selection request is received.

In an alternative embodiment, the acquiring data module 706 is further configured to:

In an alternative embodiment, the apparatus further comprises:

the issuing information module is configured to generate a transfer request according to a transfer instruction submitted for the data certificate and send the transfer request to the data provider under the condition that the transfer instruction submitted for the data certificate is received; responding to an execution result of the transfer task corresponding to the transfer request executed by the data provider, and transferring the data certificate to a data transfer party corresponding to the transfer instruction; and determining transfer information according to the transfer result of the data certificate, and issuing on the blockchain.

In an alternative embodiment, the apparatus further comprises:

the tracing module is configured to analyze the data tracing request to obtain target item data under the condition that the data tracing request is received; loading data uplink information corresponding to the project data on the blockchain according to the data credentials; and verifying the data uplink information based on the target item data, and taking a verification result as a response of the data tracing request.

In order to achieve that the data-requiring party can independently share data and cannot generate excessive credit, the data-requiring party can submit a selection instruction to data usage information issued on the blockchain according to the instruction application resource, a selection request can be created at the moment and sent to the data provider, the data provider responds to the request to transfer data credentials related to the data usage information, and the data-requiring party can replace the data credentials according to the application resource, so that the data-requiring party can enjoy the use authority of project data, and the data-requiring party can conveniently conduct subsequent business processing according to the project data.

Fig. 8 illustrates a block diagram of a computing device 800 provided in accordance with one embodiment of the present description. The components of computing device 800 include, but are not limited to, memory 810 and processor 820. Processor 820 is coupled to memory 810 through bus 830 and database 850 is used to hold data.

Computing device 800 also includes access device 840, access device 840 enabling computing device 800 to communicate via one or more networks 860. Examples of such networks include public switched telephone networks (PSTN, public Switched Telephone Network), local area networks (LAN, local Area Network), wide area networks (WAN, wide Area Network), personal area networks (PAN, personal Area Network), or combinations of communication networks such as the internet. Access device 840 may include one or more of any type of network interface, wired or wireless, such as a network interface card (NIC, network interface controller), such as an IEEE802.11 wireless local area network (WLAN, wireless Local Area Network) wireless interface, a worldwide interoperability for microwave access (Wi-MAX, worldwide Interoperability for Microwave Access) interface, an ethernet interface, a universal serial bus (USB, universal Serial Bus) interface, a cellular network interface, a bluetooth interface, near field communication (NFC, near Field Communication).

In one embodiment of the present description, the above-described components of computing device 800, as well as other components not shown in FIG. 8, may also be connected to each other, such as by a bus. It should be understood that the block diagram of the computing device illustrated in FIG. 8 is for exemplary purposes only and is not intended to limit the scope of the present description. Those skilled in the art may add or replace other components as desired.

Computing device 800 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., tablet, personal digital assistant, laptop, notebook, netbook, etc.), mobile phone (e.g., smart phone), wearable computing device (e.g., smart watch, smart glasses, etc.), or other type of mobile device, or a stationary computing device such as a desktop computer or personal computer (PC, personal Computer). Computing device 800 may also be a mobile or stationary server.

Wherein the processor 820 is configured to execute computer-executable instructions that, when executed by the processor, perform the steps of the blockchain-based data processing method described above.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for computing device embodiments, the description is relatively simple as it is substantially similar to a blockchain-based data processing method embodiment, as relevant to see a partial description of a blockchain-based data processing method embodiment.

An embodiment of the present disclosure also provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of the blockchain-based data processing method described above.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for computer readable storage medium embodiments, since they are substantially similar to blockchain-based data processing method embodiments, the description is relatively simple, with reference to the partial description of blockchain-based data processing method embodiments.

An embodiment of the present disclosure also provides a computer program, where the computer program, when executed in a computer, causes the computer to perform the steps of the above-described blockchain-based data processing method.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for computer program embodiments, the description is relatively simple, as it is substantially similar to a blockchain-based data processing method embodiment, with reference to the partial description of a blockchain-based data processing method embodiment being relevant.

The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

The computer instructions include computer program code that may be in source code form, object code form, executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be increased or decreased appropriately according to the requirements of the patent practice, for example, in some areas, according to the patent practice, the computer readable medium does not include an electric carrier signal and a telecommunication signal.

It should be noted that the foregoing describes specific embodiments of the present invention. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous. Further, those skilled in the art will appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily all required for the embodiments described in the specification.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

The preferred embodiments of the present specification disclosed above are merely used to help clarify the present specification. Alternative embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the teaching of the embodiments. The embodiments were chosen and described in order to best explain the principles of the embodiments and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. This specification is to be limited only by the claims and the full scope and equivalents thereof.

Claims

1. A data processing method based on a block chain is applied to a block chain node corresponding to a data provider, and comprises the following steps:

determining item data corresponding to a target item;

2. The method of claim 1, the uploading the project data to a blockchain and creating a data credential from a result of the uplink and the project data, comprising:

carrying out hash operation on the item data to obtain a target hash value;

uploading the target hash value to the blockchain, and determining uplink information corresponding to the project data according to an uplink result;

and creating the data credential according to the uplink information and the project data.

3. The method of claim 1, wherein the constructing data usage information from the credit data corresponding to the data provider and the data credential and publishing on the blockchain comprises:

loading scoring data and compliance data corresponding to the data provider, and generating the credit data according to the scoring data and the compliance data;

determining resource limit information and credit mark information according to the credit data and the data certificate;

And constructing the data use information based on the resource amount information and the credit mark information, and publishing the data use information on the blockchain.

4. The method of claim 1, the transferring the data credential to the data demander and assigning usage rights for the item data to the data demander in response to a selection request submitted by the data demander for published data usage information, comprising:

receiving a selection request submitted by the data demand guideline for the published data use information;

analyzing the selection request to determine application resources, and carrying out identity verification on the data requiring party according to the application resources;

in the case that the verification passes, a step of transferring the data voucher to the data demander and assigning a use right of the item data to the data demander is performed.

5. The method of any of claims 1-4, after the step of transferring the data credential to the data demander and assigning usage rights for the item data to the data demander in response to a selection request submitted by the data demander for published data usage information, further comprising:

Determining a data transfer party according to a transfer request submitted by the data demand party for the data certificate under the condition that the transfer request is received;

creating a transfer task for the data transfer party and executing the transfer task;

the usage rights of the item data are retracted for the data demander and the usage rights of the item data are allocated for the data transfer party.

6. A data processing method based on a block chain is applied to a block chain node corresponding to a data demand party, and comprises the following steps:

7. The method of claim 6, wherein, when receiving the data credential fed back by the data provider for the selection request, obtaining the item data corresponding to the data usage information according to the data credential, comprising:

Receiving the data credentials fed back by the data provider for the selection request;

creating a data acquisition request according to the data certificate and sending the data acquisition request to the data provider;

and receiving the project data fed back by the data provider for the data acquisition request.

8. The method of claim 6, further comprising, after the step of obtaining the item data corresponding to the data usage information according to the data credential is performed:

generating a transfer request according to a transfer instruction and sending the transfer request to the data provider under the condition that the transfer instruction submitted for the data certificate is received;

responding to an execution result of the transfer task corresponding to the transfer request executed by the data provider, and transferring the data certificate to a data transfer party corresponding to the transfer instruction;

and determining transfer information according to the transfer result of the data certificate, and issuing on the blockchain.

9. The method of any of claims 6-8, further comprising:

under the condition of receiving a data tracing request, analyzing the data tracing request to obtain target item data;

loading data uplink information corresponding to the project data on the blockchain according to the data credentials;

And verifying the data uplink information based on the target item data, and taking a verification result as a response of the data tracing request.

10. A blockchain-based data processing system, comprising:

11. A blockchain-based data processing device applied to a blockchain node corresponding to a data provider, comprising:

12. A blockchain-based data processing device for a blockchain node corresponding to a data demander, comprising:

13. A computing device, comprising:

a memory and a processor;

the memory is configured to store computer executable instructions, the processor being configured to execute the computer executable instructions, which when executed by the processor, implement the steps of the method of any one of claims 1 to 5 or 6 to 9.

14. A computer readable storage medium storing computer executable instructions which when executed by a processor perform the steps of the method of any one of claims 1 to 5 or 6 to 9.