CN110213282B - Research method and device by means of intelligent contract - Google Patents
Research method and device by means of intelligent contract Download PDFInfo
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- CN110213282B CN110213282B CN201910499600.XA CN201910499600A CN110213282B CN 110213282 B CN110213282 B CN 110213282B CN 201910499600 A CN201910499600 A CN 201910499600A CN 110213282 B CN110213282 B CN 110213282B
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Abstract
The application discloses a research method and a device thereof by means of intelligent contracts, wherein the method comprises the following steps: a block chain node receives a research task uplink request sent by a first client; triggering a task intelligent contract, and checking the balance corresponding to the first client address by the contract; receiving a research task query request sent by a research server; sending a research task to a research server; receiving a questionnaire uplink request sent by a third client; triggering a questionnaire intelligent contract, and checking balance corresponding to the third client address by the contract; receiving a questionnaire query request sent by a research server; sending a questionnaire to the research server; receiving the public keys of the first client, the second client and the third client sent by the investigation server to encrypt the investigation answer sheet; triggering an intelligent contract for answer sheets, wherein the contract executes the transfer of unit price of the questionnaire; and triggering the transaction intelligent contract when the investigation answer sheets reach the preset number. The method can link the chain in the investigation process.
Description
Technical Field
The application relates to the technical field of block chains, in particular to a research method and equipment by means of intelligent contracts.
Background
At present, a block chain technology is based on a decentralized peer-to-peer network, and open source software is used for combining a cryptography principle, time sequence data and a consensus mechanism to ensure the consistency and the persistence of each node in a distributed database, so that information can be immediately verified and traceable, but is difficult to tamper and cannot be shielded, and a set of private, efficient and safe shared value system is created.
Research is a common market activity that reflects information such as the customer's evaluation of a product or service. However, the current research is conducted on the internet, and the investigator gives the investigator some reward for answering the questionnaire, and the investigator answers the questionnaire. In this process, there are the following problems: 1, after the investigator worries to answer the questionnaire, the inquired party can not obtain the reward; 2, the investigator worries that the investigator does not answer the questionnaire after paying first; 3, the questionnaires designed by the investigators themselves are redundant and complex.
That is, how to perform research on the chain based on the traceability characteristic of the blockchain, and making the research process public and transparent becomes a problem to be solved urgently.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
In order to solve the problems, the application provides a research method and a device thereof by means of an intelligent contract, and the method can ensure the public and transparent research process and ensure the benefits of a research investigator and a researched person.
A first aspect of the present application provides a method of investigation by means of an intelligent contract, the method comprising:
the block chain node receives a research task uplink request sent by a first client, wherein the research task uplink request comprises a research task price and preset research task time;
triggering a task intelligent contract, verifying the balance corresponding to the first client address by the task intelligent contract, and freezing the investigation task price after the balance is verified;
the block chain node receives a research task query request sent by a research server;
the block chain nodes send the research tasks to a research server, so that the research server distributes the research tasks to a third client;
the block chain node receives a questionnaire chain-loading request sent by a third client, wherein the questionnaire chain-loading request comprises questionnaire price and questionnaire time, and the questionnaire price comprises questionnaire unit price and questionnaire quantity;
triggering a questionnaire intelligent contract, verifying the balance corresponding to the third client address by the questionnaire intelligent contract, and freezing the price of the questionnaire after the balance passes the verification;
the block link point receives a research questionnaire query request sent by the research server;
the block chain node sends the questionnaire to the investigation server, so that the investigation server distributes the questionnaire to a second client, and the second client encrypts the investigation answer sheet by using the public key of the investigation server;
the block link point receives the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key, which are sent by the investigation server, and the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key are obtained by encrypting the investigation answer sheet by the investigation server by using the first client public key, the second client public key and the third client public key;
triggering an answer sheet intelligent contract, wherein the answer sheet intelligent contract executes the transfer of the unit price of the investigation questionnaire, and executes the chain process on the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key;
and triggering a transaction intelligent contract when the investigation answer sheets reach a preset number, verifying the number of the investigation answer sheets by the transaction intelligent contract, and executing the transfer of the investigation task price after the verification is passed.
In one possible implementation, the method further includes: the block chain node receives a research task query request sent by the first client;
and the block chain node sends a research task response to the first client, wherein the research task response comprises the research answer sheet encrypted by the public key of the first client, so that the first client can decrypt the research answer sheet encrypted by the public key of the first client by using a private key.
In one possible implementation, the research mission price includes the research questionnaire price and a service fee of the third client;
the questionnaire price includes the questionnaire unit price, the number of questionnaires, the service fee of the block chain node, and the service fee of the research server.
In one possible implementation, the method further includes:
the block chain node receives a research and study answer sheet purchase request of a fourth client, wherein the research and study answer sheet purchase request comprises a research and study answer sheet purchase price, and the research and study answer sheet purchase price comprises a research and study answer sheet unit price and a research and study answer sheet quantity;
triggering a verification intelligent contract, verifying the balance corresponding to the fourth client address by the verification intelligent contract, and freezing the purchase price of the investigation answer sheet after the verification is passed;
the block chain link point sends a transaction confirmation request to the second client, wherein the transaction confirmation request comprises the investigation answer sheet encrypted by the public key of the investigation server, so that the second client sends a decryption authority confirmation response to the investigation server; the investigation answer sheet encrypted by the public key of the investigation server is sent to the block chain node by the second client;
the block link point receives the investigation answer sheet data which is sent by the investigation server and encrypted by the public key of the fourth client;
and triggering a transaction intelligent contract, wherein the transaction intelligent contract executes the transfer of the unit price of the investigation answer sheet and executes the chain process of the investigation answer sheet encrypted by the public key of the fourth client.
In a possible implementation manner, the encrypting the investigation answer sheet by the second client public key specifically includes: and the public key of the second client side encrypts the investigation answer sheet according to a preset proportion.
A second aspect of the present application provides a research apparatus by means of an intelligent contract, the apparatus including a receiving unit, a processing unit, and a transmitting unit; wherein the content of the first and second substances,
the receiving unit is used for receiving a research task uplink request sent by a first client, wherein the research task uplink request comprises a research task price and preset research task time;
the processing unit triggers a task intelligent contract, the task intelligent contract checks the balance corresponding to the first client address, and after the check is passed, the investigation task price is frozen;
the receiving unit is used for receiving a research task query request sent by a research server;
the sending unit is used for sending the research tasks to a research server so that the research server distributes the research tasks to a third client;
the receiving unit is used for receiving a questionnaire uplink request sent by a third client, wherein the questionnaire uplink request comprises questionnaire price and questionnaire time, and the questionnaire price comprises questionnaire unit price and questionnaire quantity;
the processing unit triggers an intelligent questionnaire contract, the intelligent questionnaire contract checks the balance corresponding to the third client address, and after the check is passed, the price of the investigation questionnaire is frozen;
the receiving unit is used for receiving a questionnaire query request sent by the investigation server;
the sending unit is used for sending the questionnaire to the investigation server so that the investigation server distributes the questionnaire to a second client side, and the second client side encrypts the investigation answer sheet by using the public key of the investigation server;
the receiving unit is configured to receive the investigation answer sheet sent by the investigation server and encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key, and the investigation answer sheet encrypted by the third client public key, where the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key, and the investigation answer sheet encrypted by the third client public key are obtained by encrypting the investigation answer sheet by the investigation server by using the first client public key, the second client public key, and the third client public key;
the processing unit is used for triggering an answer sheet intelligent contract, executing the transfer of the unit price of the investigation paper by the answer sheet intelligent contract, and executing the chain process on the investigation paper encrypted by the first client public key, the investigation paper encrypted by the second client public key and the investigation paper encrypted by the third client public key;
and the processing unit is used for triggering a transaction intelligent contract when the investigation answer sheets reach a preset number, verifying the number of the investigation answer sheets by the transaction intelligent contract, and executing the transfer of the investigation task price after the verification is passed.
In a possible implementation manner, the receiving unit receives a research task query request sent by the first client;
the sending unit sends a research task response to the first client, where the research task response includes the research answer sheet encrypted by the first client public key, so that the first client decrypts the research answer sheet encrypted by the first client public key with a private key.
In one possible implementation, the research mission price includes the research questionnaire price and a service fee of the third client;
the questionnaire price includes the questionnaire unit price, the number of questionnaires, the service fee of the block chain node, and the service fee of the research server.
In a possible implementation manner, the receiving unit receives a questionnaire purchase request of a fourth client, where the questionnaire purchase request includes a questionnaire purchase price, and the questionnaire purchase price includes a questionnaire unit price and a questionnaire number;
the processing unit triggers a check intelligent contract, the check intelligent contract checks the balance corresponding to the fourth client address, and after the check is passed, the purchase price of the investigation answer sheet is frozen;
the sending unit is used for sending a transaction confirmation request to the second client, wherein the transaction confirmation request comprises the investigation answer sheet encrypted by the public key of the investigation server, so that the second client sends a decryption authority confirmation response to the investigation server; the investigation answer sheet encrypted by the public key of the investigation server is sent to the block chain node for the second client;
the receiving unit is used for receiving the investigation answer sheet data which is sent by the investigation server and encrypted by the public key of the fourth client;
and the processing unit is used for triggering a transaction intelligent contract, executing the transfer of the unit price of the investigation answer sheet by the transaction intelligent contract and executing the chain process of the investigation answer sheet encrypted by the public key of the fourth client.
In a possible implementation manner, the encrypting the investigation answer sheet by the second client public key specifically includes: and the public key of the second client side encrypts the investigation answer sheet according to a preset proportion.
The method can link the chain in the investigation process, the whole investigation process is transparent, and the benefits of the investigator and the investigated person are guaranteed; moreover, the method allows the research data to be linked up, and both the investigator and the investigator can view the research data.
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The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.
FIG. 1 is a schematic flow chart of a research method by means of smart contracts according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of another investigation method by means of intelligent contracts according to an embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating a method for dealing with research and study answer sheets according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a research device by means of an intelligent contract according to an embodiment of the present application.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the order of such use may be interchanged under appropriate circumstances such that embodiments of the invention described herein may be practiced in other orders than those illustrated or described herein.
Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The node referred to in the embodiment of the present application may be understood as an abstract machine that responds to an external specific trigger condition and performs state conversion according to a certain rule, and may be a device that can be networked according to application software, such as a mobile phone, a tablet computer, a palm computer, a personal PC, and the like.
As shown in fig. 1, a method of research by means of smart contracts, the method comprising steps S101-S111.
S101, a block chain node receives a research task uplink request sent by a first client, wherein the research task uplink request comprises a research task price and preset research task time.
And S102, triggering a task intelligent contract, checking the balance corresponding to the first client address by the task intelligent contract, and freezing the investigation task price after the check is passed.
And S103, the block chain node receives a research task query request sent by the research server.
And S104, the block chain nodes send the research tasks to a research server, so that the research server distributes the research tasks to a third client.
And S105, the block chain node receives a questionnaire uplink request sent by a third client, wherein the questionnaire uplink request comprises questionnaire price and questionnaire time, and the questionnaire price comprises questionnaire unit price and questionnaire quantity.
And S106, triggering an intelligent questionnaire contract, checking the balance corresponding to the third client address by the intelligent questionnaire contract, and freezing the price of the investigation questionnaire after the check is passed.
S107, the block chain node receives a questionnaire query request sent by the research server.
And S108, the block chain node sends the research questionnaire to the research server, so that the research server distributes the research questionnaire to a second client, and the second client uses the research answer sheet encrypted by the public key of the research server.
And S109, the block chain node receives the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key sent by the investigation server, and the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key are obtained by encrypting the investigation answer sheet by the investigation server by the first client public key, the second client public key and the third client public key.
And S110, triggering an intelligent answer sheet contract, executing the transfer of the unit price of the investigation paper by the intelligent answer sheet contract, and executing the chain process on the investigation paper encrypted by the first client public key, the investigation paper encrypted by the second client public key and the investigation paper encrypted by the third client public key.
And S111, when the investigation answer sheets reach the preset number, triggering a transaction intelligent contract, verifying the number of the investigation answer sheets by the transaction intelligent contract, and executing the transfer of the investigation task price after the verification is passed.
In one example, the method further comprises: the block chain node receives a research task query request sent by the first client;
and the block chain node sends a research task response to the first client, wherein the research task response comprises the research answer sheet encrypted by the public key of the first client, so that the first client can decrypt the research answer sheet encrypted by the public key of the first client by using a private key.
In one example, the research mission price includes the research questionnaire price and a service fee of the third client; the questionnaire price includes the questionnaire unit price, the number of questionnaires, the service fee of the block chain node, and the service fee of the research server.
In one example, the method further comprises: the block chain node receives a research and study answer sheet purchase request of a fourth client, wherein the research and study answer sheet purchase request comprises a research and study answer sheet purchase price, and the research and study answer sheet purchase price comprises a research and study answer sheet unit price and a research and study answer sheet quantity;
triggering a verification intelligent contract, verifying the balance corresponding to the fourth client address by the verification intelligent contract, and freezing the purchase price of the investigation answer sheet after the verification is passed;
the block chain link point sends a transaction confirmation request to the second client, wherein the transaction confirmation request comprises the investigation answer sheet encrypted by the public key of the investigation server, so that the second client sends a decryption authority confirmation response to the investigation server; the investigation answer sheet encrypted by the public key of the investigation server is sent to the block chain node for the second client;
the block link point receives the investigation answer sheet data which is sent by the investigation server and encrypted by the public key of the fourth client;
and triggering a transaction intelligent contract, wherein the transaction intelligent contract executes the transfer of the unit price of the investigation answer sheet and executes the chain process of the investigation answer sheet encrypted by the public key of the fourth client.
In one example, the encrypting the questionnaire by the second client public key specifically includes: and the public key of the second client side encrypts the investigation answer sheet according to a preset proportion.
It should be noted that, a user corresponding to the first client will score the questionnaire replied by the second client; the scoring content includes a survey content score. For the user corresponding to the second client, a credit score is associated with the score of the questionnaire; when the credit score of the user corresponding to the second client is too low, the second client locks the authority, and the user corresponding to the second client is not allowed to answer the questionnaire. And the user corresponding to the first client also scores the questionnaire formulated by the third client, the user credit value corresponding to the third client is related to the rating of the questionnaire, when the user credit score corresponding to the third client is too low, the authority is locked by the third client, and the user corresponding to the third client is not allowed to formulate the questionnaire in the related field.
In addition, the third client is a research engineer, who has a good field; the second client is the investigator, and also has areas of excellence or hobbies. For example: the first client is a researcher in the mobile phone industry, and a research task of the first client can be seen only by a user corresponding to a third client with a mobile phone identifier or an electronic product identifier, so that a research questionnaire is made according to the research task; and only the user corresponding to the second client with the mobile phone identification or the electronic product identification can reply the questionnaire.
The method in the application enables a researcher, a researcher and a professional researcher to participate in the three, not only solves the problem of mutual trust between the researcher and the researcher in the research process, but also solves the problem that the researcher cannot make professional questionnaires.
Next, the investigation method in the present application will be described with reference to fig. 2 as an example. The investigation method comprises steps S201-S218.
The first client is a investigator and can be various brands of merchants; the second client is a surveyor and can be a user corresponding to various brands and merchants; the third client is a research engineer, which may be a professional questionnaire maker, and may decompose the research tasks of the research engineer into questionnaires.
S201, the first client sends a research task uplink request to a block chain node, wherein the research task uplink request comprises a research task price and preset research task time.
The task setting price is the expense set by the investigator for the investigation task, and the task setting time is the effective time set by the investigation task.
S202, triggering a task intelligent contract, checking the balance corresponding to the first client address by the task intelligent contract, freezing the price of the investigation task after the check is passed, and executing the cochain of the investigation task.
When the balance transaction is failed, the subsequent process cannot be executed; after the verification is passed, the set price of the investigation task is frozen, so that the subsequent transaction is ensured to be carried out smoothly.
S203, the block node sends a search task uplink response to the first ue.
And S204, the research server sends a research task query request to the block chain node.
At this time, the research server sends a research task query request to the block link point continuously, and obtains the research task of the block link point through active query.
And S205, sending a research task to the research server by the block chain nodes.
S206, the research server sends and distributes the research task to the third client.
In this case, the third client is familiar with, liked by, or good at the domain related to the research mission, and the research server stores the domain identification of the respective client good at.
And S207, the third client sends a questionnaire uplink request to the block chain node, wherein the questionnaire uplink request comprises a questionnaire price and a questionnaire time, and the questionnaire price comprises a questionnaire unit price and a questionnaire quantity.
At this time, the questionnaire time is within the predetermined time range of the investigation task. For example: the survey task setting time is 10 days from the day, and the survey questionnaire response time must be within the range of the survey task setting time. And once the third client applies for the research task, the block chain node sends the research task to the third client, and then the research task is automatically marked to be picked, namely the research task is in a state that the research task can not be picked any more.
And S208, triggering an intelligent questionnaire contract, checking the balance corresponding to the address of the third client by the intelligent questionnaire contract, freezing the price of the investigation questionnaire after the check is passed, and linking the investigation questionnaire.
At this time, when the verification fails, the next process cannot be performed. The research task price comprises the research questionnaire price and the service fee of the third client. The price of the questionnaire comprises the unit price of the questionnaire, the number of the questionnaires, the service fee of the block chain node and the service fee of the research server.
S209, the investigation server sends a investigation questionnaire query request to the blockchain node.
At this point, the research server sends a research questionnaire query request to the blockchain node without interruption.
S210, the block chain nodes send the questionnaire to the research server, and the research questionnaire is related to the research task.
S211, the investigation server distributes the investigation questionnaire to the second client.
The second client is a surveyor and is also a fan of the domain related to the survey questionnaire and the survey task, and the survey server stores the domain identification of the preference of each client.
S212, the second client sends the investigation answer sheet to the investigation server.
S213, the research server sends a chain linking request to the blockchain node, where the chain linking request includes the research answer encrypted by the first client public key, the research answer encrypted by the second client public key, and the research answer encrypted by the third client public key.
At this time, the public key of the second client encrypts the questionnaire data, which may be partial key field encryption or encryption according to a preset ratio (e.g., encrypt two thirds of the service data). The second client can also trade the research and study answer sheet data, so that a purchaser of the research and study answer sheet data cannot check the complete data without purchasing the data.
The preset ratio may be 0, that is, the second client does not encrypt the questionnaire answer sheet data.
And S214, triggering an intelligent answer sheet contract, executing the transfer of unit prices of the investigation questionnaires, and executing the uplink process on the investigation answer sheet encrypted by the public key of the first client, the investigation answer sheet encrypted by the public key of the second client and the investigation answer sheet encrypted by the public key of the third client.
At this time, the answer sheet intelligent contract is triggered every time of investigation and research, and the transfer of unit price of the investigation and research questionnaire is executed; or, the multiple questionnaires trigger the answer sheet intelligent contract together to execute the transfer of unit price of the multiple questionnaires. The transfer refers to transferring the unit price of the questionnaire corresponding to the address of the third client (the investigator) to the address of the second client (the investigator).
It should be noted that the service charge of the research server and the service charge of the block link points can also be one research answer sheet, and the transfer is performed once after the transaction intelligent contract is triggered; or transferring accounts for many times after a plurality of investigation and answer sheets trigger a transaction intelligent contract; the number of the investigation answer sheets is equal to the transfer times of the service fee of the investigation server and the service fee of the block link points.
S215, when the number of the investigation answer sheets reaches the preset number, triggering a transaction intelligent contract, checking the number of the investigation answer sheets by the transaction intelligent contract, and when the number of the investigation answer sheets reaches the preset number, executing the transfer of investigation task prices.
And when the verification is failed, the subsequent process is not carried out.
In the present application, only one second client (investigator) is taken as an example, but the present invention is not limited thereto. In addition, when the second client answers to the questionnaire, some illegal answer operations, such as: multiple choice questions, all choices being the same, or response speed being too fast, etc. When the block link node receives a plurality of investigation answer sheets of the same investigation task, relevant data analysis can be automatically carried out, for example: analyzing the proportion of the option A and the proportion of the option B; and storing the analyzed data on the block chain in a report form.
S216, the first client sends a research task query request to the blockchain node.
And S217, the block link points send investigation task responses to the first client, the investigation task responses comprise the investigation answer sheets encrypted by the public key of the first client, and the investigation tasks are related to the investigation questionnaires and the investigation answer sheets.
S218, the first client decrypts the investigation answer sheet encrypted by the first client public key by using the private key of the first client, so as to obtain the predetermined number of investigation answer sheets.
The following description will be made by taking examples in which the investigator, the subject to be investigated, and the investigator must have the same or similar fields. In the above steps, the research task of S201 has a mobile phone identifier, indicating the target industry of the researcher; the research task in S206 is provided with a mobile phone identifier, which indicates that the investigator is good at the field of making the questionnaire; and S211, the questionnaire is provided with a mobile phone identifier to indicate the hobbies and interests of the investigated person.
The following describes a process of conducting a transaction on a questionnaire of a second client in the present application, with reference to fig. 3 as an example. The flow includes S301-S314.
In fig. 3, the fourth client is a purchaser of the investigation answer sheet data, and the investigation answer sheet data, the first client and the third client only have a right to check, and do not have a right to buy or sell the investigation answer sheet; the second client, as the answer of the questionnaire, i.e. the subject, may trade the questionnaire data again.
And S301, encrypting the investigation answer sheet by the second client public key, and encrypting the investigation answer sheet by the investigation server public key. S302, the second ue sends a chain request for the questionnaire to the blockchain node. S303, the block node executes the uplink request on the questionnaire. S304, the block node sends a chain response of the investigation and examination paper to the second client.
S305, the fourth client sends a survey answer sheet purchase request to the tile link point, where the survey answer sheet purchase request includes a survey answer sheet purchase price, and the survey answer sheet purchase price includes a survey answer sheet unit price and a survey answer sheet quantity.
At this time, the user corresponding to the fourth client may check the search answer sheet on the blockchain and then send a purchase request. The survey answer sheet purchase price also includes a transaction service fee for the blockchain node and a transaction service fee for the survey server.
The survey answer sheet data in the application is divided into two attributes, namely, a correlation attribute and a non-correlation attribute. For example: the investigation answer sheet data are user comment contents, belong to non-associated attributes, and the comment contents of each user can be stored in the block chain; when one merchant needs to purchase the evaluation of a certain commodity, the merchant can purchase the evaluation of the commodity for a plurality of users, the operation is carried out from the block chain, the disclosure is transparent, and the benefits of the merchant and the users can be guaranteed at the same time. For example: the number of the user comment contents is the correlation attribute, the business data format of a commodity comprises the comment number, and the comment number of the commodity can be automatically superposed as long as a user comments on the commodity; another example is: the transaction frequency of the investigation answer sheet data in the application is a correlation attribute, and the attribute value is automatically increased by 1 every time the investigation answer sheet data is transacted.
S306, triggering an answer sheet verification intelligent contract, verifying the balance corresponding to the fourth client address by the answer sheet verification intelligent contract, freezing the investigation answer sheet purchase price after the verification is passed, and chaining the investigation answer sheet purchase request.
Checking the balance corresponding to the fourth client address, and judging whether the balance is enough to pay the fee; and when the verification fails, namely the balance corresponding to the address of the fourth client is not enough to pay the expense of the purchased research and examination paper, the subsequent steps cannot be carried out. And after the verification is passed, the purchase price of the investigation answer sheet needs to be frozen, so that the subsequent transaction of the investigation answer sheet is ensured to be successfully completed.
The link procedure of the investigation answer sheet data is not described in this application, for example: under the consensus mechanism of workload certification PoW, after packaging and verification, the nodes broadcast to all nodes for data synchronization.
And S307, the block link point sends a transaction confirmation request to the second client, wherein the verification confirmation request comprises a research answer sheet encrypted by the public key of the research server.
And S308, the second client sends a decryption authority confirmation response to the investigation server, wherein the decryption authority confirmation response comprises the investigation answer sheet encrypted by the public key of the investigation server.
At this time, the second client agrees to the transaction and confirms the transaction; after receiving the information, the investigation server decrypts the investigation answer sheet encrypted by the public key of the investigation server by using a private key of the investigation server to obtain the investigation answer sheet; then, the investigation answer sheet is encrypted by the fourth client public key.
S309, the investigation server sends the investigation answer sheet encrypted by the public key of the fourth client to the block chain node.
And S310, triggering a transaction intelligent contract, executing the transfer of unit price of the investigation answer sheet by the transaction intelligent contract, and executing the chain process on the investigation answer sheet encrypted by the public key of the fourth client.
The buyer of the investigation answer sheet data needs to possess digital currency to buy the investigation answer sheet data on the block chain; the digital money owned by the purchaser of the questionnaire data may be digital money obtained by selling the data of another type of questionnaire data as the owner of the data of another type of questionnaire. This is not explained in detail in the present application.
At this time, triggering an intelligent contract for one transaction for each investigation and examination paper to transfer the unit price of the investigation and examination paper; or a plurality of investigation and answer sheets trigger a transaction intelligent contract, and transfer of unit price of the investigation and answer sheets is carried out at one time.
It should be noted that the service charge of the research server and the service charge of the block link points can also be one research answer sheet, and the transfer is performed once after the transaction intelligent contract is triggered; or transferring accounts for many times after a plurality of investigation and answer sheets trigger a transaction intelligent contract; the number of the investigation answer sheets is equal to the transfer times of the service fee of the investigation server and the service fee of the block link points.
S311, the block node sends a survey answer sheet purchase response to the fourth client.
S312, the fourth client sends the survey answer sheet query to the block chain node.
And S313, the block link points send investigation answer sheet query responses to the fourth client, wherein the investigation answer sheet query responses comprise the investigation answer sheet encrypted by the public key of the fourth client.
And S314, the fourth client decrypts the investigation answer sheet encrypted by the public key of the fourth client by using the private key of the fourth client.
As shown in fig. 4, a research apparatus by means of smart contracts includes a receiving unit, a processing unit, and a transmitting unit.
The receiving unit is used for receiving a research task uplink request sent by a first client, wherein the research task uplink request comprises a research task price and preset research task time;
the processing unit triggers a task intelligent contract, the task intelligent contract checks the balance corresponding to the first client address, and after the check is passed, the investigation task price is frozen;
the receiving unit is used for receiving a research task query request sent by a research server;
the sending unit is used for sending the research tasks to a research server so that the research server distributes the research tasks to a third client;
the receiving unit is used for receiving a questionnaire uplink request sent by a third client, wherein the questionnaire uplink request comprises questionnaire price and questionnaire time, and the questionnaire price comprises questionnaire unit price and questionnaire quantity;
the processing unit triggers an intelligent questionnaire contract, the intelligent questionnaire contract checks the balance corresponding to the third client address, and after the check is passed, the price of the investigation questionnaire is frozen;
the receiving unit is used for receiving a questionnaire query request sent by the investigation server;
the sending unit is used for sending the questionnaire to the investigation server so that the investigation server distributes the questionnaire to a second client side, and the second client side uses the investigation answer sheet encrypted by the public key of the investigation server;
the receiving unit is configured to receive the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key, and the investigation answer sheet encrypted by the third client public key sent by the investigation server, where the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key, and the investigation answer sheet encrypted by the third client public key are obtained by encrypting the investigation answer sheet by the investigation server by using the first client public key, the second client public key, and the third client public key;
the processing unit is used for triggering an answer sheet intelligent contract, executing the transfer of the unit price of the investigation paper by the answer sheet intelligent contract, and executing the chain process on the investigation paper encrypted by the first client public key, the investigation paper encrypted by the second client public key and the investigation paper encrypted by the third client public key;
and the processing unit is used for triggering a transaction intelligent contract when the investigation answer sheets reach a preset number, verifying the number of the investigation answer sheets by the transaction intelligent contract, and executing the transfer of the investigation task price after the verification is passed.
In one example, the receiving unit receives a research task query request sent by the first client; the sending unit sends a research task response to the first client, where the research task response includes the research answer sheet encrypted by the first client public key, so that the first client decrypts the research answer sheet encrypted by the first client public key with a private key.
In one example, the research mission price includes the research questionnaire price and a service fee of the third client; the questionnaire price includes the questionnaire unit price, the number of questionnaires, the service fee of the block chain node, and the service fee of the research server.
In one example, the receiving unit receives a questionnaire purchase request of a fourth client, where the questionnaire purchase request includes a questionnaire purchase price, and the questionnaire purchase price includes a questionnaire unit price and a questionnaire number;
the processing unit triggers a check intelligent contract, the check intelligent contract checks the balance corresponding to the fourth client address, and after the check is passed, the purchase price of the investigation answer sheet is frozen;
the sending unit is used for sending a transaction confirmation request to the second client, wherein the transaction confirmation request comprises the investigation answer sheet encrypted by the public key of the investigation server, so that the second client sends a decryption authority confirmation response to the investigation server; the investigation answer sheet encrypted by the public key of the investigation server is sent to the block chain node for the second client;
the receiving unit is used for receiving the investigation answer sheet data which is sent by the investigation server and encrypted by the public key of the fourth client;
and the processing unit is used for triggering a transaction intelligent contract, executing the transfer of the unit price of the investigation answer sheet by the transaction intelligent contract and executing the chain process of the investigation answer sheet encrypted by the public key of the fourth client.
In one example, the encrypting the questionnaire by the second client public key specifically includes: and the public key of the second client side encrypts the investigation answer sheet according to a preset proportion.
The method can link the chain in the investigation process, the whole investigation process is transparent, and the benefits of the investigator and the investigated person are guaranteed; moreover, the method allows the research data to be linked up, and both the investigator and the investigator can view the research data.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A method of researching on smart contracts, the method comprising:
the block chain node receives a research task uplink request sent by a first client, wherein the research task uplink request comprises a research task price and preset research task time;
triggering a task intelligent contract, verifying the balance corresponding to the first client address by the task intelligent contract, and freezing the investigation task price after the balance is verified;
the block chain node receives a research task query request sent by a research server;
the block chain nodes send the research tasks to a research server, so that the research server distributes the research tasks to a third client;
the block chain node receives a questionnaire chain-loading request sent by a third client, wherein the questionnaire chain-loading request comprises questionnaire price and questionnaire time, and the questionnaire price comprises questionnaire unit price and questionnaire quantity;
triggering a questionnaire intelligent contract, verifying the balance corresponding to the third client address by the questionnaire intelligent contract, and freezing the price of the questionnaire after the balance passes the verification;
the block link point receives a research questionnaire query request sent by the research server;
the block chain node sends the questionnaire to the investigation server, so that the investigation server distributes the questionnaire to a second client, and the second client encrypts the investigation answer sheet by using the public key of the investigation server;
the block link point receives the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key, which are sent by the investigation server, and the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key are obtained by encrypting the investigation answer sheet by the investigation server by using the first client public key, the second client public key and the third client public key;
triggering an answer sheet intelligent contract, wherein the answer sheet intelligent contract executes the transfer of the unit price of the investigation questionnaire, and executes the chain process on the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key and the investigation answer sheet encrypted by the third client public key;
triggering a transaction intelligent contract when the investigation answer sheets reach a preset number, verifying the number of the investigation answer sheets by the transaction intelligent contract, and executing the transfer of the investigation task price after the verification is passed;
the investigation task price comprises the investigation questionnaire price and the service fee of the third client;
the questionnaire price includes the questionnaire unit price, the number of questionnaires, the service fee of the block chain node, and the service fee of the research server.
2. The method of claim 1, further comprising:
the block chain node receives a research task query request sent by the first client;
and the block chain node sends a research task response to the first client, wherein the research task response comprises the research answer sheet encrypted by the public key of the first client, so that the first client can decrypt the research answer sheet encrypted by the public key of the first client by using a private key.
3. The method of claim 1, further comprising:
the block chain node receives a research and study answer sheet purchase request of a fourth client, wherein the research and study answer sheet purchase request comprises a research and study answer sheet purchase price, and the research and study answer sheet purchase price comprises a research and study answer sheet unit price and a research and study answer sheet quantity;
triggering a verification intelligent contract, verifying the balance corresponding to the fourth client address by the verification intelligent contract, and freezing the purchase price of the investigation answer sheet after the verification is passed;
the block chain link point sends a transaction confirmation request to the second client, wherein the transaction confirmation request comprises the investigation answer sheet encrypted by the public key of the investigation server, so that the second client sends a decryption authority confirmation response to the investigation server; the investigation answer sheet encrypted by the public key of the investigation server is sent to the block chain node by the second client;
the block link point receives the investigation answer sheet data which is sent by the investigation server and encrypted by the public key of the fourth client;
and triggering a transaction intelligent contract, wherein the transaction intelligent contract executes the transfer of the unit price of the investigation answer sheet and executes the chain process of the investigation answer sheet encrypted by the public key of the fourth client.
4. The method according to claim 1, wherein the second client public key encrypts the questionnaire, specifically:
and the public key of the second client side encrypts the investigation answer sheet according to a preset proportion.
5. An investigation apparatus by means of smart contracts, characterized in that the apparatus comprises a receiving unit, a processing unit and a transmitting unit; wherein the content of the first and second substances,
the receiving unit is used for receiving a research task uplink request sent by a first client, wherein the research task uplink request comprises a research task price and preset research task time;
the processing unit triggers a task intelligent contract, the task intelligent contract checks the balance corresponding to the first client address, and after the check is passed, the investigation task price is frozen;
the receiving unit is used for receiving a research task query request sent by a research server;
the sending unit is used for sending the research tasks to a research server so that the research server distributes the research tasks to a third client;
the receiving unit is used for receiving a questionnaire uplink request sent by a third client, wherein the questionnaire uplink request comprises questionnaire price and questionnaire time, and the questionnaire price comprises questionnaire unit price and questionnaire quantity;
the processing unit triggers an intelligent questionnaire contract, the intelligent questionnaire contract checks the balance corresponding to the third client address, and after the check is passed, the price of the investigation questionnaire is frozen;
the receiving unit is used for receiving a questionnaire query request sent by the investigation server;
the sending unit is used for sending the questionnaire to the investigation server so that the investigation server distributes the questionnaire to a second client side, and the second client side encrypts the investigation answer sheet by using the public key of the investigation server;
the receiving unit is configured to receive the investigation answer sheet sent by the investigation server and encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key, and the investigation answer sheet encrypted by the third client public key, where the investigation answer sheet encrypted by the first client public key, the investigation answer sheet encrypted by the second client public key, and the investigation answer sheet encrypted by the third client public key are obtained by encrypting the investigation answer sheet by the investigation server by using the first client public key, the second client public key, and the third client public key;
the processing unit is used for triggering an answer sheet intelligent contract, executing the transfer of the unit price of the investigation paper by the answer sheet intelligent contract, and executing the chain process on the investigation paper encrypted by the first client public key, the investigation paper encrypted by the second client public key and the investigation paper encrypted by the third client public key;
the processing unit is used for triggering a transaction intelligent contract when the investigation answer sheets reach a preset number, verifying the number of the investigation answer sheets by the transaction intelligent contract, and executing the transfer of the investigation task price after the verification is passed;
the investigation task price comprises the investigation questionnaire price and the service fee of the third client;
the questionnaire price includes the questionnaire unit price, the number of questionnaires, the service fee of the block link point, and the service fee of the research server.
6. The apparatus of claim 5,
the receiving unit is used for receiving a research task query request sent by the first client;
the sending unit sends a research task response to the first client, where the research task response includes the research answer sheet encrypted by the first client public key, so that the first client decrypts the research answer sheet encrypted by the first client public key with a private key.
7. The apparatus of claim 5,
the receiving unit is used for receiving a research and study paper purchase request of a fourth client, wherein the research and study paper purchase request comprises a research and study paper purchase price, and the research and study paper purchase price comprises a research and study paper unit price and a research and study paper quantity;
the processing unit triggers a check intelligent contract, the check intelligent contract checks the balance corresponding to the fourth client address, and after the check is passed, the purchase price of the investigation answer sheet is frozen;
the sending unit is used for sending a transaction confirmation request to the second client, wherein the transaction confirmation request comprises the investigation answer sheet encrypted by the public key of the investigation server, so that the second client sends a decryption authority confirmation response to the investigation server; the investigation answer sheet encrypted by the public key of the investigation server is sent to the block chain node by the second client;
the receiving unit is used for receiving the investigation answer sheet data which is sent by the investigation server and encrypted by the public key of the fourth client;
and the processing unit is used for triggering a transaction intelligent contract, executing the transfer of the unit price of the investigation answer sheet by the transaction intelligent contract and executing the chain process of the investigation answer sheet encrypted by the public key of the fourth client.
8. The device according to claim 5, wherein the second client public key encrypts the questionnaire, specifically:
and the public key of the second client side encrypts the investigation answer sheet according to a preset proportion.
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| CN108428122A (en) * | 2018-02-08 | 2018-08-21 | 布比（北京）网络技术有限公司 | It is a kind of distribution account book on trade financing method and system |
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