CN116957579A

CN116957579A - Data storage method and device based on blockchain

Info

Publication number: CN116957579A
Application number: CN202311024236.4A
Authority: CN
Inventors: 周异; 林晨; 万明尧; 洪浸淞; 韦慧田; 冯涛; 徐敏
Original assignee: Alipay Hangzhou Information Technology Co Ltd
Current assignee: Alipay Hangzhou Information Technology Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2023-10-27
Also published as: CN113095828B; CN113095828A

Abstract

The embodiment of the specification provides a data certification processing method and device based on a blockchain, wherein the data certification processing method based on the blockchain comprises the following steps: creating a data snapshot of the transaction bill according to a bill evidence-storing request submitted by a first transaction party to which the transaction bill belongs, and generating evidence-storing application data of the first transaction party; uploading the data snapshot and the evidence-based application data to a blockchain node, and sending an offer of an evidence-based contract to a second transaction party recorded in the transaction bill; generating validation signing data for the second transaction party if the validation contract is validated; uploading the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

Description

Data storage method and device based on blockchain

The application relates to a split application of Chinese application patent application with the application date of 2021, 04 month and 27 days, the application number of CN202110459192.2 and the name of a block chain-based data storage method and a block chain-based data storage device.

Technical Field

The present document relates to the field of blockchain technologies, and in particular, to a blockchain-based data storage method and device.

Background

The block chain is a decentralised distributed account book in which data is stored in blocks and is connected end to end according to time sequence to form a chain structure, and meanwhile, the unrepeatable and unrefalsifiable and falsifiable data and the safe data transmission access are ensured through cryptography. The blockchain technology has the characteristics of decentralization, participation of each computing node in data recording and rapid data synchronization among the computing nodes, so that the blockchain is widely applied in a plurality of fields.

Disclosure of Invention

One or more embodiments of the present specification provide a blockchain-based data certification method. The data certification method based on the blockchain is applied to a contract platform and comprises the following steps: and creating a data snapshot of the transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs, and generating certification application data of the first transaction party. Uploading the data snapshot and the evidence-based application data to a blockchain node, and sending an offer of an evidence-based contract to a second transaction party recorded in the transaction bill. And generating confirmation signing data of the second transaction party in the condition that the certification contract is confirmed to be signed. Uploading the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

One or more embodiments of the present specification provide another blockchain-based data certification method applied to blockchain nodes in a blockchain, the method comprising: and receiving the data snapshot of the transaction bill uploaded by the contract platform and the evidence-storing application data of the first transaction party. And carrying out uplink processing on the data snapshot and the evidence-based application data. And associating the confirmation signing data of the second transaction party uploaded by the contract platform with the transaction bill. And carrying out uplink processing on the associated confirmation signed data.

One or more embodiments of the present disclosure provide a blockchain-based data certification device, operating on a contract platform, comprising: the system comprises a certification application data generation module, a data storage module and a data processing module, wherein the certification application data generation module is configured to create a data snapshot of a transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs and generate certification application data of the first transaction party. And the certification offer sending module is configured to upload the data snapshot and the certification application data to a blockchain node and send the offer of the certification contract to a second transaction party recorded in the transaction bill. And a validation signing data generation module configured to generate validation signing data for the second transaction part if the certification contract is validated for signing. And a validation signing data uploading module configured to upload the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

One or more embodiments of the present specification provide another blockchain-based data certification device, operating at a blockchain node in a blockchain, the device comprising: and the certification application data receiving module is configured to receive the data snapshot of the transaction bill uploaded by the contract platform and the certification application data of the first transaction party. And the certification application data uplink module is configured to carry out uplink processing on the data snapshot and the certification application data. And the data association module is configured to associate the confirmation signing data of the second transaction party uploaded by the contract platform with the transaction bill. And the confirmation signed data uplink module is configured to carry out uplink processing on the correlated confirmation signed data.

One or more embodiments of the present specification provide a blockchain-based data certification device, comprising: a processor; and a memory configured to store computer-executable instructions that, when executed, cause the processor to: and creating a data snapshot of the transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs, and generating certification application data of the first transaction party. Uploading the data snapshot and the evidence-based application data to a blockchain node, and sending an offer of an evidence-based contract to a second transaction party recorded in the transaction bill. And generating confirmation signing data of the second transaction party in the condition that the certification contract is confirmed to be signed. Uploading the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

One or more embodiments of the present specification provide another blockchain-based data certification device, including: a processor; and a memory configured to store computer-executable instructions that, when executed, cause the processor to: and receiving the data snapshot of the transaction bill uploaded by the contract platform and the evidence-storing application data of the first transaction party. And carrying out uplink processing on the data snapshot and the evidence-based application data. And associating the confirmation signing data of the second transaction party uploaded by the contract platform with the transaction bill. And carrying out uplink processing on the associated confirmation signed data.

One or more embodiments of the present specification provide a storage medium storing computer-executable instructions that, when executed, implement the following: and creating a data snapshot of the transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs, and generating certification application data of the first transaction party. Uploading the data snapshot and the evidence-based application data to a blockchain node, and sending an offer of an evidence-based contract to a second transaction party recorded in the transaction bill. And generating confirmation signing data of the second transaction party in the condition that the certification contract is confirmed to be signed. Uploading the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

One or more embodiments of the present specification provide another storage medium storing computer-executable instructions that, when executed, implement the following: and receiving the data snapshot of the transaction bill uploaded by the contract platform and the evidence-storing application data of the first transaction party. And carrying out uplink processing on the data snapshot and the evidence-based application data. And associating the confirmation signing data of the second transaction party uploaded by the contract platform with the transaction bill. And carrying out uplink processing on the associated confirmation signed data.

Drawings

For a clearer description of one or more embodiments of the present description or of the solutions of the prior art, the drawings that are needed in the description of the embodiments or of the prior art will be briefly described below, it being obvious that the drawings in the description that follow are only some of the embodiments described in the present description, from which other drawings can be obtained, without inventive faculty, for a person skilled in the art;

FIG. 1 is a flow diagram of a process for a blockchain-based data certification method provided in one or more embodiments of the present disclosure;

FIG. 2 is a block chain based data logging method process flow diagram for use in a transfer logging scenario in accordance with one or more embodiments of the present disclosure;

FIG. 3 is a flow diagram of another blockchain-based data certification method provided by one or more embodiments of the present disclosure;

FIG. 4 is a flowchart of another blockchain-based data certification method applied to a transfer certification scenario provided by one or more embodiments of the present disclosure;

FIG. 5 is a schematic diagram of a blockchain-based data certification device provided in one or more embodiments of the present disclosure;

FIG. 6 is a schematic diagram of another blockchain-based data certification device provided in accordance with one or more embodiments of the present disclosure;

FIG. 7 is a schematic diagram of a blockchain-based data storage device according to one or more embodiments of the present disclosure;

FIG. 8 is a schematic diagram of another blockchain-based data storage device in accordance with one or more embodiments of the present disclosure.

Detailed Description

In order to enable a person skilled in the art to better understand the technical solutions in one or more embodiments of the present specification, the technical solutions in one or more embodiments of the present specification will be clearly and completely described below with reference to the drawings in one or more embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one or more embodiments of the present disclosure without inventive effort, are intended to be within the scope of the present disclosure.

The present specification provides an embodiment of a blockchain-based data certification method:

referring to fig. 1, a block chain-based data certification method processing flow chart provided in this embodiment is shown, and referring to fig. 2, a block chain-based data certification method processing flow chart applied to a transfer certification scenario is shown.

Referring to fig. 1, the blockchain-based data certification method provided in the present embodiment is applied to a contract platform, and specifically includes steps S102 to S108.

Step S102, a data snapshot of the transaction bill is created according to a bill certification request submitted by a first transaction party to which the transaction bill belongs, and certification application data of the first transaction party are generated.

According to the blockchain-based data storage and verification method, for the transaction bill generated after the transaction of the transaction both sides, the consensus of the transaction both sides on the transaction bill is achieved in a contract signing mode, the consensus of uploading the transaction bill to the blockchain for storage and verification is achieved, meanwhile, the related data of the transaction both sides in the contract signing process are recorded and uplink storage and verification is carried out, so that the storage and verification data of the transaction bill on the blockchain are more complete and comprehensive, a basis is provided for solving the transaction dispute possibly existing around the transaction bill by the transaction both sides, a completed data basis is provided for the electronic notarization file for generating the transaction bill later, and the maintenance cost for solving the transaction dispute by the transaction both sides is reduced.

In this embodiment, the transaction party includes a user, a merchant, and a transaction platform such as an online vending platform and an online recycling platform that transact with the user or the merchant. The transaction bill refers to a bill generated after transaction is carried out by two transaction parties or transaction parties, the first transaction party refers to one or more transaction participants participating in the transaction, and the second transaction party refers to another transaction participant or another transaction participants participating in the transaction.

For example, after a user and a merchant conduct transaction to generate a commodity transaction bill, the user is a first transaction party, and the merchant is a second transaction party; or after the transfer transaction is carried out between two users to generate a transfer bill, the transfer initiator is a first transaction party, and the transfer receiver is a second transaction party; for another example, after the plurality of users participate in the commodity transaction of the online shopping platform together in a party type to generate a commodity transaction bill, the first transaction party comprises one or more users participating in the party type, and the second transaction party comprises the online shopping platform or other users outside the online shopping platform and the first transaction party.

The bill deposit request in this embodiment refers to a request initiated by a first transaction party to perform uplink deposit on a transaction bill. In order to facilitate the transaction party participating in the transaction to initiate the evidence storage of the transaction bill after the transaction is completed, optionally, the bill evidence storage request is submitted to the block chain link point after the first transaction party triggers the evidence storage control configured by the bill display page of the transaction bill; the bill presentation page is created and presented after the transaction of the first transaction part and the second transaction part is completed.

For example, after the user a transfers and generates a transfer bill to the user B through the application program, a certificate deposit button for depositing the transfer bill is configured and displayed on a display page of the transfer bill in the application program, and both the user a and the user B can initiate the uplink certificate deposit for the transfer order by clicking the displayed certificate deposit button at the first time when the transfer is completed to generate the transfer order.

In addition, to further facilitate the transaction party to initiate the deposit of the transaction bill, optionally, the bill deposit request is submitted to the block link point after the first transaction party selects the transaction bill in a bill list page and triggers a deposit control; the bill listing page is accessed through an application page of the application. For example, after the user a transfers and generates a transfer bill to the user B through the application program, the user a wants to initiate a certificate for the transfer bill within a period of time after the transaction is completed, and can search and select the transfer bill in a bill list of the application program, and initiate a uplink certificate for the transfer order by clicking a certificate storing button generated after the transfer bill is selected.

In an optional implementation manner provided in this embodiment, the creating the data snapshot of the transaction bill specifically includes: inquiring bill data corresponding to the bill identification based on the bill identification carried in the bill evidence request; and creating a data snapshot of the transaction bill based on the queried bill data and storing the data snapshot.

In a specific implementation, in order to improve the notarization efficacy of the electronic notarization credential generated later, in this embodiment, in the process of uplink notarization of the transaction bill, recording and uplink notarizing are performed on the process data of the process of applying for notarization by both transaction parties, and finally the electronic notarization credential is generated based on the notarization data of the transaction bill stored by the blockchain and the process data of both transaction parties in the notarization process, in an alternative implementation provided in this embodiment, the notarization application data of the first transaction party is generated by adopting the following manner:

acquiring type keywords and additional keywords of the transaction bill input by the first transaction party, and applying operation environment information;

and generating and storing the certification application data of the first transaction party based on the type keyword, the additional keyword and the application operation environment information. The evidence-deposit application data refers to process data of the first transaction party in the process of initiating evidence deposit of the transaction bill.

For example, in the process of checking the transfer bill of the transfer transaction with the user B, the user a inputs the transaction type (such as borrowing, transferring, payroll, renting, etc.) of the transfer bill, and inputs the key information (amount, transaction time, transaction place, etc.) of the transfer bill, and in the process of generating the check application data of the user a, the user a initiates the application environment information of the check application and the data snapshot of the transfer bill according to the transaction type of the transfer bill and the key information of the transfer bill input by the user a, and generates the check application data of the user a for the transfer bill.

Step S104, uploading the data snapshot and the evidence-based application data to a blockchain node, and sending an offer of an evidence-based contract to a second transaction party recorded in the transaction bill.

In this embodiment, the first transaction party initiates an offer to the second transaction party to invite the second transaction party to obtain the agreement for verifying the transaction bill, and in the first alternative implementation manner provided in this embodiment, before sending the offer of the verification contract to the second transaction party, a keyword acquisition page of the transaction bill is generated and displayed to the first transaction party, and a type keyword and an additional keyword of the transaction bill input based on the keyword acquisition page are acquired; and generating an offer of a certification contract of the transaction bill based on the type keyword, the additional keyword and the transaction bill.

And in specific implementation, the contract platform accesses the blockchain, performs uplink certification on the data snapshot of the transaction bill and the certification application data of the first transaction party, particularly uploads the data snapshot and the certification application data to a blockchain node in the blockchain, and performs certification on the data snapshot and the certification application data by the blockchain node. In another aspect, the contract platform sends an offer initiated by the first transaction party to the second transaction party, in particular an offer of a certified contract of the transaction bill to a second transaction party recorded in the transaction bill.

Step S106, in the case that the certification contract is certificated, generating certificated signing data of the second transaction party.

After the above-mentioned request for signing the certification contract of the transaction bill initiated by the first transaction party is sent to the second transaction party, the second transaction party may choose to sign the certification contract, i.e. confirm the agreement with the first transaction party to sign the transaction bill, in which case, confirm signed data of the second transaction party is generated, where the confirmed signed data refers to process data of the second transaction party in signing the certification contract with the first transaction party.

In an alternative implementation manner provided in this embodiment, the following manner is adopted to generate the validation signing data of the second transaction party:

if the contract signing control configured on the offer page of the certification contract is triggered, recording the confirmation signing action data and the application operation environment information of the second transaction party;

the validation signing data is generated based on the validation signing action data, the application operating environment information and/or the data snapshot.

Along the above example, in the process of checking the transfer bill of the transfer transaction with the user B, the user a sends a checking contract for checking the transfer bill to the user B to invite the user B to agree and confirm the uplink checking of the transfer bill; here, after signing the deposit contract, the user B confirms that the transfer bill is deposited, and generates confirmation signing data of the user B for the transfer bill according to signing action data of the user B signing the deposit contract, application environment information of the user B signing the deposit contract, and a data snapshot of the transfer bill.

Step S108, uploading the confirmation signed data to the blockchain node to carry out association and uplink certification of the confirmation signed data and the transaction bill.

And uploading the confirmation signed data of the second transaction party to a blockchain node in a blockchain accessed by a contract platform after the confirmation signed data of the second transaction party is generated so as to document the confirmation signed data. In this embodiment, the process data in the transaction bill checking process is composed of two parts of data, namely, the check application data of the first transaction party and the check signing data of the second transaction party, and after the block chain node receives the check signing data uploaded by the contract platform, the block chain link node correlates the check signing data with the data snapshot of the transaction bill and the check application data of the first transaction party uploaded in the step S104, so that an electronic notarization of the transaction bill is generated according to the data snapshot of the transaction bill, the check application data of the first transaction party and the check signing data of the second transaction party. Specifically, after the confirmation signing data is uploaded to the blockchain node, the blockchain node establishes association with the transaction bill based on the bill identification of the transaction bill contained in the confirmation signing data.

In practical application, when transaction parties or transaction parties generate transaction disputes, the core point for solving the transaction disputes often depends on whether effective evidence collection can be performed, and in this embodiment, on the basis that the transaction parties achieve the consensus of checking the transaction bill and the process data in the process of achieving the consensus on the transaction bill and the parties, an electronic notarization credential of the transaction bill is generated according to a notarization application proposed by any transaction party or transaction parties, so that effective credentials and powerful evidence are provided for solving the transaction disputes, and in an optional implementation provided in this embodiment, the electronic notarization credential of the transaction bill is generated by adopting the following manner:

acquiring a submitted notarized application of the first transaction party or the second transaction party;

responding to the notarization application, inquiring a data snapshot of the transaction bill, depositing evidence application data and/or confirming signed data;

uploading the queried data snapshot, the certification application data and/or the confirmation signed data to a notarization platform so as to enable the notarization platform to carry out data verification, and generating an electronic notarization certificate of the transaction bill after verification is passed; the electronic notarization certificate refers to an electronic notarization certificate or an electronic notarization file with judicial efficacy;

Issuing an electronic notarization certificate of the transaction bill to the first transaction party or the second transaction party.

Optionally, in the process of data verification, the notarization platform specifically adopts the following modes: invoking a block chain link point to inquire a data snapshot of the transaction bill stored in the block chain, and storing certificate application data and/or confirming signed data; comparing the queried data snapshot, the certification application data and/or the confirmation signing data with the data snapshot, the certification application data and/or the confirmation signing data uploaded by the contract platform; and if the comparison result is consistent, generating an electronic notarization certificate of the transaction bill.

In addition, in the implementation, besides the implementation mode of generating the electronic notarization certificate of the transaction bill by the notarization platform, a blockchain node corresponding to the notarization mechanism, namely a notarization node, is configured in the blockchain, and the notarization node is used for carrying out data verification and generation of the electronic notarization certificate of the transaction bill, in particular, the notarization node is used for inquiring the data snapshot and the evidence-storing application data of the transaction bill in the blockchain and inquiring the confirmation signing data associated with the transaction bill; comparing the queried data snapshot, certificate-storing application data and signature-confirming data with the data snapshot, certificate-storing application data and signature-confirming data uploaded by the contract platform, and generating the electronic notarization certificate of the transaction bill under the condition that the comparison results are consistent.

The following further describes the blockchain-based data certification method provided in this embodiment by taking the application of the blockchain-based data certification method in the transfer certification scenario as an example, referring to fig. 2, the blockchain-based data certification method applied in the transfer certification scenario specifically includes steps S202 to S220.

The implementation process of the blockchain-based data verification method applied to the account transfer verification scene provided below is matched with the implementation process of steps S402 to S412 provided in the method embodiment described below, and therefore, please refer to steps S402 to S412 to read the implementation process described below.

Step S202, creating a data snapshot of the transfer bill according to a bill deposit request submitted by a first user to which the transfer bill belongs, and generating deposit application data of the first user.

Step S204, a keyword collection page of the transfer bill is generated and displayed to the first user, and a transaction type keyword and a bill additional keyword of the transfer bill input based on the keyword collection page are obtained.

Step S206, based on the transaction type keyword, the bill addition keyword and the transfer bill, generating an offer of the deposit contract of the transfer bill.

Step S208, uploading the data snapshot and the evidence-based application data to the blockchain node, and sending the offer of the evidence-based contract to the second user recorded in the transfer bill.

Step S210, in the case that the certification contract is certificated by the second user, certificated signing data of the second user is generated.

Step S212, uploading the confirmed signed data to the blockchain node for association and uplink certification of the confirmed signed data and the transfer bill.

Step S214, obtaining a notarized application of the transfer bill submitted by the first user or the second user.

Step S216, in response to the notarization application, inquires about the data snapshot of the transfer bill, the certification application data, and/or the confirmation signing data.

Step S218, the queried data snapshot, the certification application data and/or the confirmation signed data are uploaded to a notarization platform, so that the notarization platform performs data verification, and an electronic notarization certificate of the transfer bill is generated after verification is passed.

Step S220, issuing an electronic notarization certificate of the transfer bill to the first user or the second user.

Another exemplary embodiment of a blockchain-based data certification method is provided herein:

referring to fig. 3, a block chain-based data certification method processing flow chart provided in the present embodiment is shown, and referring to fig. 4, a block chain-based data certification method processing flow chart applied to a transfer certification scenario is shown.

Referring to fig. 3, the data storage method based on blockchain provided in the present embodiment is applied to blockchain nodes in blockchain, and specifically includes steps S302 to S308.

Step S302, receiving a data snapshot of a transaction bill and the certification application data of the first transaction party, which are uploaded by the contract platform.

In an optional implementation manner provided in this embodiment, the data snapshot of the transaction bill is generated in the following manner: inquiring bill data corresponding to the bill identifier based on the bill identifier carried in the evidence-based application; and creating a data snapshot of the transaction bill based on the queried bill data and storing the data snapshot.

In a specific implementation, in order to improve the notarization efficacy of the electronic notarization credential generated later, in this embodiment, in the process of uplink notarization of the transaction bill, recording and uplink notarizing are performed on the process data of the process of applying for notarization by both transaction parties, and finally the electronic notarization credential is generated based on the notarization data of the transaction bill stored by the blockchain and the process data of both transaction parties in the notarization process, in an alternative implementation provided in this embodiment, the notarization application data of the first transaction party is generated in the following manner:

And step S304, carrying out uplink processing on the data snapshot and the evidence-based application data.

After receiving the data snapshot of the transaction bill and the evidence-storing application data of the first transaction party, which are uploaded by the contract platform, in the step, uplink processing is performed on the data snapshot and the evidence-storing application data so as to ensure the validity of the data snapshot and the evidence-storing application data through a data storage means of a blockchain, and a data basis is provided for a subsequent electronic notarization certificate.

And step S306, the confirmation signing data of the second transaction party uploaded by the contract platform is associated with the transaction bill.

After the first transaction party sends the initiated offer of the credit contract of the transaction bill to the second transaction party through the contract platform, the second transaction party can choose to sign the credit contract, namely confirm the consensus with the first transaction party for registering the transaction bill, in this case, the contract platform generates confirmation signing data of the second transaction party, which refers to the process data of the second transaction party in signing the credit contract with the first transaction party.

In an optional implementation manner provided in this embodiment, the validation and signing data of the second transaction party is generated in the following manner: if the contract signing control configured on the offer page of the certification contract is triggered, recording the confirmation signing action data and the application operation environment information of the second transaction party; the validation signing data is generated based on the validation signing action data, the application operating environment information and/or the data snapshot.

In this embodiment, the process data in the transaction bill verification process is composed of two parts of data, namely, verification application data of the first transaction party and verification signed data of the second transaction party, and after receiving the verification signed data uploaded by the contract platform, the blockchain node associates the verification signed data uploaded by the second transaction party with the data snapshot of the transaction bill and the verification application data uploaded by the first transaction party, so that an electronic notarization of the transaction bill is generated according to the data snapshot of the transaction bill, the verification application data of the first transaction party and the verification signed data of the second transaction party.

Specifically, associating the confirmation signing data of the second transaction party uploaded by the contract platform with the transaction bill comprises: establishing an association relationship between the confirmed signed data and the transaction bill based on bill identification of the transaction bill contained in the confirmed signed data; and the data snapshot and the certification application data are subjected to uplink processing, and the associated confirmation signed data are subjected to uplink processing, so that the data snapshot and the certification application data are executed based on the same transaction.

Step S308, the associated confirmation signing data is subjected to uplink processing.

Responding to the call of the notarization platform, inquiring data snapshot and evidence-storing application data of the transaction bill in the blockchain, and inquiring confirmation signing data associated with the transaction bill;

and returning the queried data snapshot, the certification application data and the signed confirmation data of the transaction bill to the notarization platform so as to enable the notarization platform to carry out data verification, and generating an electronic notarization certificate of the transaction bill after the verification is passed.

In addition, in the implementation, besides the implementation manner of generating the electronic notarization credential of the transaction bill by the notarization platform, a blockchain node corresponding to the notarization mechanism, namely a notarization node, may be configured in the blockchain, and the notarization node is used for performing data verification and generation of the electronic notarization credential of the transaction bill, specifically, the notarization node is used for querying the data snapshot and the evidence-storing application data of the transaction bill in the blockchain, and querying the confirmation signing data associated with the transaction bill; comparing the queried data snapshot, certificate-storing application data and signature-confirming data with the data snapshot, certificate-storing application data and signature-confirming data uploaded by the contract platform, and generating the electronic notarization certificate of the transaction bill under the condition that the comparison results are consistent.

The following further describes the blockchain-based data certification method provided in this embodiment by taking the application of the blockchain-based data certification method in the transfer certification scenario as an example, referring to fig. 4, the blockchain-based data certification method applied in the transfer certification scenario specifically includes steps S402 to S412.

Step S402, receiving a data snapshot of the transfer bill uploaded by the contract platform and the certification application data of the first user.

Step S404, the data snapshot and the evidence application data are processed in a uplink mode.

Step S406, the confirmation signing data of the second user uploaded by the contract platform is associated with the transfer bill.

Step S408, the associated confirmation signing data is subjected to uplink processing.

Step S410, in response to the call of the notarization platform, inquiring the data snapshot and the evidence-based application data of the transfer bill in the blockchain, and inquiring the confirmation signing data associated with the transfer bill.

And step S412, returning the queried data snapshot, the certification application data and the signed verification data to the notarization platform so as to enable the notarization platform to carry out data verification, and generating an electronic notarization certificate of the transfer bill after verification is passed.

The embodiment of a blockchain-based data certification device provided in the present specification is as follows:

in the foregoing embodiments, a blockchain-based data certification method is provided, and a blockchain-based data certification device is provided corresponding to the method, which is described below with reference to the accompanying drawings.

Referring to fig. 5, a schematic diagram of a data certification device based on a blockchain is shown in this embodiment.

Since the apparatus embodiments correspond to the method embodiments, the description is relatively simple, and the relevant portions should be referred to the corresponding descriptions of the method embodiments provided above. The device embodiments described below are merely illustrative.

The embodiment provides a data certification device based on a blockchain, which operates on a contract platform and comprises:

the certification application data generating module 502 is configured to create a data snapshot of a transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs, and generate certification application data of the first transaction party;

an evidence-based offer sending module 504 configured to upload the data snapshot and the evidence-based application data to a blockchain node and send an offer of an evidence-based contract to a second party registered in the transaction bill;

A validation signed data generation module 506 configured to generate validation signed data for the second transaction party if the certification contract is validated for signing;

a validation signing data upload module 508 configured to upload the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

Another exemplary embodiment of a blockchain-based data storage device provided in this specification is as follows:

in the foregoing embodiments, another blockchain-based data certification method is provided, and in correspondence therewith, another blockchain-based data certification device is also provided, which is described below with reference to the accompanying drawings.

Referring to fig. 6, a schematic diagram of a data certification device based on a blockchain is shown in this embodiment.

The embodiment provides a data storage device based on a blockchain, which is operated at a blockchain node in the blockchain and comprises:

The certification application data receiving module 602 is configured to receive a data snapshot of a transaction bill uploaded by the contract platform and certification application data of the first transaction party;

a certification application data uplink module 604 configured to perform uplink processing on the data snapshot and the certification application data;

a data association module 606 configured to associate the validation signing data of the second transaction party uploaded by the contract platform with the transaction bill;

the validation signed data chaining module 608 is configured to perform a chaining process on the associated validation signed data.

The embodiment of the data certification equipment based on the blockchain is as follows:

corresponding to the above-described blockchain-based data certification method, based on the same technical concept, one or more embodiments of the present disclosure further provide a blockchain-based data certification device, where the blockchain-based data certification device is used to execute the above-provided blockchain-based data certification method, and fig. 7 is a schematic structural diagram of the blockchain-based data certification device provided by one or more embodiments of the present disclosure.

The embodiment provides a data certification equipment based on block chain, includes:

As shown in FIG. 7, a blockchain-based data storage device may vary widely in configuration or performance, and may include one or more processors 701 and memory 702, where the memory 702 may store one or more storage applications or data. Wherein the memory 702 may be transient storage or persistent storage. The application programs stored in the memory 702 may include one or more modules (not shown in the figures), each of which may include a series of computer-executable instructions in a blockchain-based data storage device. Still further, the processor 701 may be configured to communicate with the memory 702 and execute a series of computer executable instructions in the memory 702 on a blockchain-based data storage device. The blockchain-based data storage device may also include one or more power supplies 703, one or more wired or wireless network interfaces 704, one or more input/output interfaces 705, one or more keyboards 706, and the like.

In one particular embodiment, a blockchain-based data storage device includes a memory, and one or more programs, wherein the one or more programs are stored in the memory, and the one or more programs may include one or more modules, and each module may include a series of computer-executable instructions for the blockchain-based data storage device, and configured to be executed by one or more processors, the one or more programs including computer-executable instructions for:

Creating a data snapshot of the transaction bill according to a bill evidence-storing request submitted by a first transaction party to which the transaction bill belongs, and generating evidence-storing application data of the first transaction party;

uploading the data snapshot and the evidence-based application data to a blockchain node, and sending an offer of an evidence-based contract to a second transaction party recorded in the transaction bill;

generating validation signing data for the second transaction party if the validation contract is validated;

uploading the validation signing data to the blockchain node for association and uplink certification of the validation signing data with the transaction bill.

Another exemplary embodiment of a blockchain-based data certification device provided in this specification is as follows:

corresponding to the above-described another blockchain-based data certification method, one or more embodiments of the present disclosure further provide a blockchain-based data certification device, which is configured to perform the above-described provided blockchain-based data certification method, based on the same technical concept, and fig. 8 is a schematic structural diagram of another blockchain-based data certification device provided in one or more embodiments of the present disclosure.

as shown in FIG. 8, the blockchain-based data storage devices may vary widely in configuration or performance, and may include one or more processors 801 and memory 802, where the memory 802 may store one or more storage applications or data. Wherein the memory 802 may be transient storage or persistent storage. The application programs stored in memory 802 may include one or more modules (not shown in the figures), each of which may include a series of computer-executable instructions in a blockchain-based data storage device. Still further, the processor 801 may be configured to communicate with a memory 802 to execute a series of computer executable instructions in the memory 802 on a blockchain-based data storage device. The blockchain-based data storage device may also include one or more power supplies 803, one or more wired or wireless network interfaces 804, one or more input/output interfaces 805, one or more keyboards 806, and the like.

Receiving a data snapshot of a transaction bill uploaded by a contract platform and evidence-storing application data of a first transaction party;

performing uplink processing on the data snapshot and the evidence-based application data;

associating confirmation signing data of the second transaction party uploaded by the contract platform with the transaction bill;

and carrying out uplink processing on the associated confirmation signed data.

An embodiment of a storage medium provided in the present specification is as follows:

corresponding to the above description of a blockchain-based data certification method, one or more embodiments of the present disclosure further provide a storage medium based on the same technical concept.

The storage medium provided in this embodiment is configured to store computer executable instructions, where the computer executable instructions when executed implement the following procedures:

It should be noted that, in the present specification, the embodiment about the storage medium and the embodiment about the blockchain-based data storage method in the present specification are based on the same inventive concept, so that the specific implementation of the embodiment may refer to the implementation of the corresponding method, and the repetition is omitted.

Another storage medium embodiment provided in this specification is as follows:

corresponding to the above-described another blockchain-based data certification method, one or more embodiments of the present specification further provide a storage medium based on the same technical concept.

And carrying out uplink processing on the associated confirmation signed data.

It should be noted that, in the present specification, an embodiment of the storage medium and an embodiment of another blockchain-based data storage method in the present specification are based on the same inventive concept, so that a specific implementation of the embodiment may refer to an implementation of the foregoing corresponding method, and a repetition is omitted.

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.

In the 30 s of the 20 th century, improvements to one technology could clearly be distinguished as improvements in hardware (e.g., improvements to circuit structures such as diodes, transistors, switches, etc.) or software (improvements to the process flow). However, with the development of technology, many improvements of the current method flows can be regarded as direct improvements of hardware circuit structures. Designers almost always obtain corresponding hardware circuit structures by programming improved method flows into hardware circuits. Therefore, an improvement of a method flow cannot be said to be realized by a hardware entity module. For example, a programmable logic device (Programmable Logic Device, PLD) (e.g., field programmable gate array (Field Programmable Gate Array, FPGA)) is an integrated circuit whose logic function is determined by the programming of the device by a user. A designer programs to "integrate" a digital system onto a PLD without requiring the chip manufacturer to design and fabricate application-specific integrated circuit chips. Moreover, nowadays, instead of manually manufacturing integrated circuit chips, such programming is mostly implemented by using "logic compiler" software, which is similar to the software compiler used in program development and writing, and the original code before the compiling is also written in a specific programming language, which is called hardware description language (Hardware Description Language, HDL), but not just one of the hdds, but a plurality of kinds, such as ABEL (Advanced Boolean Expression Language), AHDL (Altera Hardware Description Language), confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), lava, lola, myHDL, PALASM, RHDL (Ruby Hardware Description Language), etc., VHDL (Very-High-Speed Integrated Circuit Hardware Description Language) and Verilog are currently most commonly used. It will also be apparent to those skilled in the art that a hardware circuit implementing the logic method flow can be readily obtained by merely slightly programming the method flow into an integrated circuit using several of the hardware description languages described above.

The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer readable medium storing computer readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, application specific integrated circuits (Application Specific Integrated Circuit, ASIC), programmable logic controllers, and embedded microcontrollers, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, atmel AT91SAM, microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic of the memory. Those skilled in the art will also appreciate that, in addition to implementing the controller in a pure computer readable program code, it is well possible to implement the same functionality by logically programming the method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc. Such a controller may thus be regarded as a kind of hardware component, and means for performing various functions included therein may also be regarded as structures within the hardware component. Or even means for achieving the various functions may be regarded as either software modules implementing the methods or structures within hardware components.

The system, apparatus, module or unit set forth in the above embodiments may be implemented in particular by a computer chip or entity, or by a product having a certain function. One typical implementation is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

For convenience of description, the above devices are described as being functionally divided into various units, respectively. Of course, the functions of each unit may be implemented in the same piece or pieces of software and/or hardware when implementing the embodiments of the present specification.

One skilled in the relevant art will recognize that one or more embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, one or more embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present description can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present description is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the specification. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

One or more embodiments of the present specification may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. One or more embodiments of the specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

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 system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing description is by way of example only and is not intended to limit the present disclosure. Various modifications and changes may occur to those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present document are intended to be included within the scope of the claims of the present document.

Claims

1. A transaction evidence-preserving method based on a blockchain is applied to a contract platform and comprises the following steps:

creating a data snapshot of the transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs, and generating process data of a certification process carried out by the first transaction party;

uploading the data snapshot and the process data of the first transaction party to a blockchain node, and sending an offer of a certification contract to the second transaction party recorded in the transaction bill;

Generating process data of a process of signing the endorsement contract by the second transaction part in case the endorsement contract is confirmed to be signed;

and uploading the process data of the second transaction party to the blockchain node for association and uplink certification of the confirmation signed data and the transaction bill.

2. The blockchain-based transaction verification method of claim 1, further comprising:

uploading the queried data snapshot, the certification application data and/or the confirmation signed data to a notarization platform so as to enable the notarization platform to carry out data verification, and generating an electronic notarization certificate of the transaction bill after verification is passed;

3. The blockchain-based transaction verification method of claim 2, wherein the notarization platform performs data verification by:

invoking a block chain link point to inquire a data snapshot of the transaction bill stored in the block chain, and storing certificate application data and/or confirming signed data;

Comparing the queried data snapshot, the certification application data and/or the confirmation signing data with the data snapshot, the certification application data and/or the confirmation signing data uploaded by the contract platform;

and if the comparison result is consistent, generating an electronic notarization certificate of the transaction bill.

4. The blockchain-based transaction verification method of claim 1, the bill verification request submitted to the blockchain link point after the first transaction party triggers a verification control of a bill presentation page configuration of the transaction bill; the bill presentation page is created and presented after the transaction of the first transaction part and the second transaction part is completed.

5. The blockchain-based transaction verification method of claim 1, wherein the bill verification request is submitted to the blockchain link point after the first transaction party selects the transaction bill in a bill listing page and triggers a verification control; the bill listing page is accessed through an application page of the application.

6. The blockchain-based transaction verification method of claim 1, the creating the data snapshot of the transaction bill comprising:

inquiring bill data corresponding to the bill identification based on the bill identification carried in the bill evidence request;

And creating a data snapshot of the transaction bill based on the queried bill data and storing the data snapshot.

7. The blockchain-based transaction verification method of claim 1, wherein after the step of creating a data snapshot of the transaction bill according to a bill verification request submitted by a first transaction party to which the transaction bill belongs and generating process data of a verification process performed by the first transaction party, and before the step of uploading the data snapshot and the process data of the first transaction party to a blockchain node and sending an offer of a verification contract to the second transaction party recorded in the transaction bill is performed, further comprising:

and generating a keyword acquisition page of the transaction bill, displaying the keyword acquisition page to the first transaction party, and acquiring a type keyword and an additional keyword which are input based on the keyword acquisition page.

8. The blockchain-based transaction verification method of claim 1, wherein the creating a data snapshot of the transaction bill according to a bill verification request submitted by a first transaction party to which the transaction bill belongs and generating process data of the first transaction party for a verification process further comprises, before executing:

and acquiring the type keywords and the additional keywords input by the first transaction party and applying the operation environment information.

9. The blockchain-based transaction verification method of claim 1, wherein after the process data of the second transaction party is uploaded to the blockchain node, an association with the transaction bill is established based on a bill identification of the transaction bill contained in the process data of the second transaction party.

10. A blockchain-based transaction certification method applied to blockchain nodes in a blockchain, the method comprising:

receiving a data snapshot of a transaction bill uploaded by a contract platform and process data of a first transaction party in a certification process; the data snapshot is created according to a bill storage certificate request submitted by the first transaction party;

performing uplink processing on the data snapshot and the process data of the first transaction party;

associating process data of a second transaction party signing and checking contract process uploaded by the contract platform with the transaction bill; process data of the second transaction party is generated under the condition that the certification contract is confirmed to be signed;

and carrying out uplink processing on the associated process data of the second transaction party.

11. The blockchain-based transaction verification method of claim 10, further comprising:

in response to invocation of the notarization platform, querying the blockchain for a snapshot of data of the transaction bill and process data of the first transaction party, and querying for process data of the second transaction party associated with the transaction bill;

And returning the queried data snapshot of the transaction bill, the process data of the first transaction party and the process data of the second transaction party to the notarization platform so as to enable the notarization platform to carry out data verification, and generating an electronic notarization certificate of the transaction bill after verification is passed.

12. The blockchain-based transaction certification method of claim 10, wherein the associating the process data of the second transaction part signing certification contract process uploaded by the contract platform with the transaction bill comprises:

establishing an association relationship between the process data of the second transaction party and the transaction bill based on the bill identification of the transaction bill contained in the process data of the second transaction party;

and the data snapshot and the process data of the first transaction party are subjected to uplink processing, and the associated process data of the second transaction party is subjected to uplink processing, so that the data snapshot and the associated process data of the second transaction party are executed based on the same transaction.

13. The blockchain-based transaction verification method of claim 10, wherein the data snapshot of the transaction bill is generated by:

inquiring bill data corresponding to the bill identifier based on the bill identifier carried in the evidence-based application;

14. The blockchain-based transaction verification method of claim 10, wherein the process data of the first transaction part is generated by:

and generating and storing the process data of the first transaction party based on the type keyword, the additional keyword and the application operation environment information.

15. The blockchain-based transaction verification method of claim 10, wherein blockchain nodes corresponding to notarization institutions are configured in the blockchain;

the blockchain node is used for inquiring the data snapshot of the transaction bill and the process data of the first transaction party in the blockchain, and inquiring the process data of the second transaction party associated with the transaction bill;

comparing the queried data snapshot of the transaction bill, the process data of the first transaction party and the process data of the second transaction party with the data snapshot uploaded by the contract platform, the process data of the first transaction party and the process data of the second transaction party, and generating an electronic notarization certificate of the transaction bill under the condition that the comparison results are consistent.

16. A blockchain-based data certification device operating on a contract platform, the device comprising:

the system comprises a certification application data generation module, a verification application data generation module and a verification application data generation module, wherein the certification application data generation module is configured to create a data snapshot of a transaction bill according to a bill certification request submitted by a first transaction party to which the transaction bill belongs and generate process data of a certification process carried out by the first transaction party;

an evidence-based offer sending module configured to upload the data snapshot and the process data of the first transaction party to a blockchain node and send an offer of an evidence-based contract to the second transaction party recorded in the transaction bill;

a validation signed data generation module configured to generate process data of a process of signing a validation contract by the second transaction part if the validation contract is validated for signing;

and a validation signed data uploading module configured to upload process data of the second transaction party to the blockchain node for association and uplink certification of the validation signed data with the transaction bill.

17. A blockchain-based order processing device, a blockchain node operating in a blockchain, comprising:

the system comprises a certification application data receiving module, a certification application data processing module and a storage module, wherein the certification application data receiving module is configured to receive a data snapshot of a transaction bill uploaded by a contract platform and process data of a certification process carried out by a first transaction party; the data snapshot is created according to a bill storage certificate request submitted by the first transaction party;

The certification application data uplink module is configured to carry out uplink processing on the data snapshot and the process data of the first transaction party;

a data association module configured to associate process data of a second transaction party signing and proving contract process uploaded by the contract platform with the transaction bill; process data of the second transaction party is generated under the condition that the certification contract is confirmed to be signed;

and the confirmation signing data uplink module is configured to carry out uplink processing on the associated process data of the second transaction party.

18. A blockchain-based data certification device, comprising:

a processor; and a memory configured to store computer-executable instructions that, when executed, cause the processor to:

19. A blockchain-based order processing device, comprising:

20. A storage medium storing computer-executable instructions that when executed implement the following:

21. A storage medium storing computer-executable instructions that when executed implement the following: