WO2022097608A1 - Information management platform system and processing method therefor - Google Patents

Abstract

[Problem] To provide an information management platform system capable of conveniently providing, to various services, information management technology using a blockchain. [Solution] This information management platform system 1 using a blockchain 30 comprises: a plurality of service server devices 20 that provide desired data management services; a platform server device 10 that accepts, from the service server devices, registration information including hash values of data, and performs registration into and referring to the blockchain, regarding the registration information for the purpose of genuineness authentication therefor; and a communication network 40 that connects the service server devices and the platform server device. The platform server device is provided with: an information acceptance unit that accepts registration information from the plurality of service server devices through an API; a transaction issuing unit that, upon acceptance of the registration information, issues a transaction relating to the registration information; a smart contract processing unit for performing, on the basis of the transaction from the transaction issuing unit, recording of the registration information into the blockchain; a reference acceptance unit that provides an API to the plurality of service server devices, and that accepts at least a hash value relating to the registration information through the API; a search processing unit for searching whether the transaction of a referred hash value is recorded on the blockchain; and a result report unit that reports the search result to the service server devices.

Description

Information management platform system and its processing method

The present invention relates to an information management platform system using a blockchain and its processing method, and particularly relates to a technique capable of easily introducing blockchain authentication for various services.

In recent years, a method of recording information using a blockchain has been known. It is a technology that can prevent tampering by constructing it in a distributed manner with multiple computers on the network, grouping contracts for a certain period into blocks, and recording them on a chain while verifying each other between the computers. .. Since the concatenated blocks have the previous hash value, their continuity is ensured.

Conventionally, as a technology using blockchain, by recording the transaction data on the blockchain at the time of transaction of virtual currency, even if the data is falsified and fraudulent transactions are performed, it is recorded in the distributed ledger of the blockchain. The reliability of transaction data is maintained by a majority vote of the collected data. For example, a virtual currency trading system is disclosed in Patent Document 1.

Further, in Patent Document 2, it is applied as a record of contract agreement, and while maintaining the form of one electronic signature for one transaction, the contract trail can be efficiently blocked even by a large number of people. The technology to be left in is disclosed. In the present disclosure, a plurality of devices each store a blockchain containing a transaction broadcast to a network in a storage unit, and the blockchain stored in the storage unit is used for a shared contract corresponding to a contract to be agreed upon. It monitors whether transactions addressed to the address are included, and if it detects a transaction addressed to the contract address, it is addressed to the contract address, including a trail of whether or not the contract is agreed and the electronic signature of the user of the own device. The procedure for generating a transaction and broadcasting it to the network is disclosed.

Patent Document 3 is an example applied to the authentication method of the device connected to the network. The authentication request device issues an authentication request transaction to the distributed ledger, and the authentication response device reads and authenticates the authentication request transaction to the distributed ledger. The technology is disclosed.

Patent Document 4 discloses a copyrighted work protection support device that can easily and inexpensively perform time authentication for a desired copyrighted work using a distributed network. This device uses a communication unit, an acquisition unit that acquires a copyrighted work with information to request time authentication using the communication unit, and an acquisition unit that requests time authentication acquired by the acquisition unit. It is provided with a processing unit that controls a communication unit so that information based on a literary work with information is transmitted to a distributed network in which transmitted / received information is held together with time information.

Although various applications for blockchain technology have been proposed like these multiple prior arts, storage in blockchain is configured to generate and record transactions in each system, so that it will be a common platform. No specific technique has been proposed.

In addition, the conventional service that records information on the blockchain handles the data to be recorded on the service side, which not only increases the load on the server such as storage area and line speed, but also increases the risk of leakage and external attacks. As a result, it led to cost increase and difficulty in introduction.

Patent No. 6776396 JP 2017-220710 Japanese Patent Laid-Open No. 2020-178344 JP-A-2016-208347

The present invention has been created to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide an information management platform system that easily provides information management using a blockchain to various services. And.

In order to solve the above problems, the present invention provides the following information management platform system.
That is, according to the first embodiment of the present invention, it is an information management platform system using a blockchain, and a plurality of service server devices that provide a desired data management service, and hashing of data from the service server devices. It consists of a communication network that connects a platform server device, a service server device, and a platform server device for receiving registration information including values, registering and inquiring to the blockchain, and performing genuine authentication. Provides an API (Application Programming Interface) to multiple service server devices and issues a transaction related to the registration information with the information receiving unit that receives the registration information through the API and the reception of the registration information. Provides APIs to the department, the smart contract processing department that records registration information in the blockchain based on transactions from the transaction issuing department, and multiple service server devices, and accepts at least hash values for registration information through the API. It is characterized by including an inquiry receiving unit, a search processing unit for searching whether a transaction of the inquired hash value is recorded on the blockchain, and a result notification unit for notifying the service server device of the search result.

According to the second embodiment of the present invention, the registration information may include additional information related to the data together with the hash value.

According to the third embodiment of the present invention, the service server device and the platform server device both have a Web server function, and the API may be a Web API.

According to the fourth embodiment of the present invention, the data can be stored and retrievably managed in the service server device, while the registration information can not include the data managed by the service server device.

According to the fifth embodiment of the present invention, the member information is integrated in the platform server device in the configuration in which each data managed in the plurality of service server devices is associated with the member information using the management service. It is also possible to provide a member information management function by providing a member information common processing unit that manages the members.

According to the sixth embodiment of the present invention, the platform server device includes a billing information common processing unit that integrates and manages billing information of the plurality of service server devices, and provides a billing information management function for each member. May be provided.

According to the seventh embodiment of the present invention, the service server device is a management service that manages an electronic file of a document as the data, and the information receiving unit of the platform server device is converted from the electronic file. The hash value calculated by a predetermined formula and the signature information for the document are transmitted through the API, and the hash value is transmitted to the inquiry receiving unit of the platform server device through the API, and the result notification unit is used. It may be configured to receive the search result from and display the contract status.

According to the eighth embodiment of the present invention, the service server device is connected to a plurality of IoT (Internet Of Things) devices, and the data is a communication history with the IoT devices, and the platform server device. The hash value calculated from the communication history by a predetermined formula and additional information regarding the communication history are transmitted to the information receiving unit through the API, and hashed to the inquiry receiving unit of the platform server device. It is also possible to transmit the value through the API, receive the search result from the result notification unit, and display the authenticity of the communication history.

The present invention can also be provided as an information processing method in an information management platform system using a blockchain.
That is, according to the ninth embodiment, the information management platform system is composed of a plurality of service server devices, a platform server device, and a communication network connecting the service server device and the platform server device, which is desired. A step of transmitting registration information including a hash value of data from a service server device that provides a data management service, a step of receiving registration information through an API (Application Programming Interface) by the information receiving unit of the platform server device, a platform server. Information having a step in which the transaction issuing unit of the device issues a transaction related to the registration information, and a step in which the smart contract processing unit of the platform server device records the registration information in the blockchain based on the transaction from the transaction issuing unit. Provides a processing method.

According to the tenth embodiment of the present invention, the step of transmitting at least a hash value for the registration information from the service server device, the inquiry receiving unit of the platform server device at least hashes for the registration information through API (Application Programming Interface). The step of accepting the value, the step of searching whether the queryed hash value transaction is recorded on the blockchain by the search processing unit of the platform server device, the result notification unit of the platform server device, the search result is the service server device. The service server device may have a step of notifying the user and a step of displaying the search result.

According to the eleventh embodiment of the present invention, the registered information may include additional information related to the data together with the hash value.

According to the twelfth embodiment of the present invention, the service server device and the platform server device both have a Web server function, and the API may be a Web API.

According to the thirteenth embodiment of the present invention, while the data is stored and retrievably managed in the service server device, the registration information may not include the data managed by the service server device. ..

According to the fourteenth embodiment of the present invention, the service server device is a service for managing an electronic file of a document as the data, and is predetermined from the electronic file to the information receiving unit of the platform server device. The hash value calculated by the above formula and the signature information for the document are transmitted through the API, and the hash value is transmitted to the inquiry receiving unit of the platform server device through the API, and the result notification unit sends the hash value. It may be configured to receive the search result of and display the contract status.

According to the fifteenth embodiment of the present invention, the service server device is connected to a plurality of IoT (Internet Of Things) devices, and the data is a communication history with the IoT device, and the platform server device. The hash value calculated from the communication history by a predetermined formula and additional information regarding the communication history are transmitted to the information receiving unit through the API, and hashed to the inquiry receiving unit of the platform server device. It is also possible to transmit the value through the API, receive the search result from the result notification unit, and display the authenticity of the communication history.

The present invention has the following effects due to the above configuration.
That is, while the operator of the service server device manages various data such as documents and communication history with the IoT device without being limited to the content of the data, the platform server device does not participate in the content of the data. By recording only the hash value on the blockchain, it is possible to provide a data authentication service.

This makes it possible to easily use blockchain technology, improve the reliability of data management services, and at the same time contribute to cost reduction.

In addition, since the platform can manage member information and billing information separately, the data itself, member information, and billing information can be managed separately to improve the safety of information management.

When exchanging business documents, it is possible to exchange unique formats safely and easily without using a standardized protocol for electronic data interchange (EDI).

It is an whole view of the information management platform system which concerns on this invention. It is a block diagram of the platform server apparatus of this invention. It is a block diagram of the service server apparatus of this invention. It is a figure explaining the provision mode of a service by an information management platform system. It is a flowchart of the information processing method (document registration) of this invention. It is a flowchart of the information processing method (signature) of this invention. It is a flowchart of the information processing method (data inquiry) of this invention. It is explanatory drawing of the example of registering a seal information using an information management platform system. It is explanatory drawing of the example of registering the communication history with an IoT device using an information management platform system.

Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. The embodiment is not limited to the following.
FIG. 1 is an overall view of the information management platform system (1) according to the present invention. The system (1) receives registration information including a hash value of data from a plurality of service server devices (20) that provide a desired data management service, and a blockchain (30). It is composed of a communication network (40) such as the Internet that connects a platform server device (10), a service server device (20), and a platform server device (10) for registering and inquiring to the server for authenticity authentication.

Each service server device provides a management service for managing some data, and generally, a member user terminal (50) using the management service and a connected device (51) (51). ) Manages the data sent from.

In the present invention, data management refers to storing and storing data, searching, extracting and transmitting data according to a request, authenticating the authenticity of data, and referring to a time stamp. It comprehensively defines various processes related to data, such as providing information such as the date when it was created and whether or not it has been updated since then.

The target data is arbitrary and can be any information that requires objective proof, authentication, or certification at a later date, such as text data, image / video data, audio data, encrypted data, etc. You can also handle data.
For the purpose of certification, it is preferable to use it for proof of existence, proof of transaction date and time, proof of consensus building fact, proof of non-tampering, proof of authenticity, and the like.

FIG. 2 is a configuration diagram of the platform server device (10).
The platform server device (10) is provided with an API (Application Programming Interface) for a plurality of service server devices (20). Here, the platform server device (10) has a known Web server function, and it is preferable to implement a highly versatile Web API as the API. That is, the API that receives the data necessary for the implementation of the present invention from the service server device (20) can flexibly support the higher-level services of various service server devices (20).

The platform server device (10) has a general configuration of a server device arranged in a known network, and can be configured by any computer such as a server, a personal computer, or a workstation. Since these hardwares are known, the description thereof will be omitted.

Implement a processing unit that performs various processing by the CPU (11) of the platform server device (10). That is, from the information receiving unit (111) that receives the registration information through the API, the transaction issuing unit (112) that issues the transaction related to the registration information when the registration information is received, and the transaction issuing unit (112). The smart contract processing unit (113) that records the registration information in the blockchain based on the transaction is the minimum necessary processing unit for recording the registration information in the blockchain.

Further, when registering in the blockchain (30), by registering together with a time stamp acquired from a time certification authority (not shown), it is possible to authenticate the time of the registered data and the presence / absence of modification. It will be like. For this purpose, a time authentication acquisition unit (114) that acquires a type stamp from a time authentication authority may be provided.

Further, in order to search the data stored in the blockchain (30), the CPU (10) is provided with an API for a plurality of service server devices (20), and at least a hash value is received for the registration information through the API. The inquiry receiving unit (115), the search processing unit (116) for searching whether the transaction of the inquired hash value is recorded on the blockchain, and the result notification unit (117) for notifying the service server device of the search result. And prepare.

Since the blockchain (30) is a known technique, detailed description thereof will be omitted, but a plurality of blocks such as each block are connected in a chain on a network such as the Internet, and the information of the previous block is highly complicated. It is a technology that makes tampering extremely difficult by having the next block have the hash value that has been calculated.

Since the blockchain (30) is often used for transactions of virtual currencies, the stored data is generally called a transaction record, but in the present invention, this is stored as a hash value calculated from various data. This hash value is stored in each block, which is a block of records, in chronological order. In addition to the hash value, the hash value of the previous block is stored in each block.

If you try to tamper with the information in a block that was generated in the past, the hash value calculated from the changed block will be different from before, so you must also change the hash value of all subsequent blocks. .. Since the blocks of the blockchain are distributed on the network and the authenticity is decided by majority vote, such changes are practically difficult, and as a result, a tamper-proof system is realized.

FIG. 3 is a block diagram of the service server device (20) of the present invention. The service server device (20) is also configured by a known computer as described above.
The CPU (21) has a login processing unit (211) that performs login processing for members who use management services, an upload receiving unit (212) that receives data uploaded from user terminals and connected devices, and a predetermined calculation from the data. It includes a hash calculation unit (213) that calculates a hash value by an expression, a registration information transmission unit (215) that transmits at least the calculated hash value to the platform server device (10) as registration information, and the like.

Further, in order to search the data stored in the blockchain (30), the hash value related to the registration information is transmitted from the registration information inquiry unit (216) by the API provided by the platform server device (10). Then, the result of searching the hash value on the blockchain (30) in the platform server device (10) is displayed. For example, a list generation unit (217) that collectively searches for a plurality of data and displays the list can be provided.

The service server device (20) is provided with a member information DB (22) for managing members of the service to be provided, and may be managed by an ID or password. The login processing unit (211) can perform login authentication processing by referring to the member information DB (22) with the ID and password entered by the member on the user terminal.

Further, data (231) transmitted from a user terminal or a connected device, additional information (232) which is ID or other information, and a hash calculated by a hash calculation unit (213) are stored in a storage means (23) such as a hard disk. The value (233) can be stored.
As a result, the member can refer to the data after logging in, and the registration information inquiry unit (216) can extract the hash value (233) and perform processing.

The platform server device (10) and the service server device (20) are provided with network adapters (15) and (24), respectively, and postscript to each other via the communication network (40). Further, the platform server device (10) may communicate with the blockchain (30) via the communication network (40), and the service server device (20) may communicate with the user terminal and connected devices via the communication network (40). can.

The information management platform system (1) using the blockchain as described above can create a new form of service provision that has never existed before. FIG. 4 is a diagram illustrating a service provision mode by the information management platform system.
Here, it is divided into an operator who operates the platform server device (10), an operator who operates the service server device (20), and an end user who uses various management services provided by the service server device (20). ..

The platform server device (10) has a function of receiving a hash or additional information and performing a smart contract on the blockchain, and can receive a usage fee related to such an authentication process from the service server device operator. As a service server device operator, it is possible to introduce authentication using a blockchain easily and at low cost without preparing a system for accessing the blockchain.

A large number of service server device operators make contracts with the platform server device (10), and provide services using the authentication function to the end users of the higher-level services to be provided. Of course, in consideration of this service, the usage fee is paid by the end user to the service server device operator.

In the past, the authentication system using the blockchain consistently performed the process of storing data, calculating the hash value, executing the smart contract and recording it in the blockchain, but this system is operated separately. A new system can be provided that provides the end user with a similar authentication process.

In addition, by providing an authentication function that cannot be tampered with, the added value of the management service is improved, and the usage fee from the end user to the service server device operator and, by extension, the use from the service server device operator to the plot form server device. You can also increase the value of the fee.

As described above, the service server device (20) can manage various data, but in this embodiment, a case where an electronic file of a document is handled as an example of data will be described. For example, regarding a contract document, the existence of the document and the service for managing the parties are assumed.

FIG. 5 shows a processing method when registering a document.
First, the login processing unit (211) performs login processing (S10) from the member user terminal (50) by a known login method. The user terminal (50) is logged in when the member can be confirmed by referring to the member information DB (22).
In the present invention, the service server device (20) is not limited to the mode in which only the member can use the service, and the login process (S10) does not have to be performed.

While logged in, the member uploads a document such as a contract (S11). Specifically, by designating an electronic file stored in the user terminal (50) and transmitting it, the upload receiving unit (212) of the service server device (20) receives it and stores it in the storage means (23). It is saved (S12) as data (231).

At this stage, the parties may perform the process of signing, or they may immediately proceed to the process of recording on the blockchain. This embodiment is an example of the latter, and the hash value calculation unit (213) calculates the hash value (S13) of the electronic file using a predetermined hash function. The hash function can be determined arbitrarily, but for example, SHA256 and RIPEMD160 are well known.
The calculated hash value is stored in association with the data (231) related to the document in the hash value data (233) of the storage means (23).

The service server device (20) stores not only electronic files and hash values of documents but also various data in association with each other in order to provide a document management service to users. Table 1 is an example.

In Table 1, from left to right, the management number, the date when the document was registered, the calculated hash value, the signature status, the file name of the electronic file, the transaction date when the transaction was made, the transaction, as the serial number of the data, etc. The amount of money. The additional information generation unit (214) of the service server device (20) generates and records each information.
What is entered in the signature status is the email address of the party who signed the document.

When recording on the blockchain, additional information can be appropriately selected from such various additional information (232). In this embodiment, the e-mail address included in the signature state is included as the registration information. That is, the registration information transmission unit (215) transmits (S14) to the platform server device (10) with the hash value "1234abc" and the signature "aaa@hoge.com.jp/bbb@example.com".

When the registration information is received through the API provided by the information receiving unit (111) of the platform server device (10), the transaction issuing unit (112) issues a transaction related to the registration information (S15). Further, the smart contract processing unit (115) records the registration information (S16) in the blockchain (30) based on the transaction from the transaction issuing unit.

Since the hash value and signature status of the document stored in the service server device (20) are recorded in the blockchain (30) by this series of flow, for example, the content of the document and the signer can be changed. It disappears.
At the same time, since the platform server device (10) only temporarily receives the hash value and the signer's information, the server can be operated with a very low load without incurring the cost and risk of data storage. ..

In addition, the hash value of the document and the signature state are recorded together on the blockchain (30), so that the same effect as the so-called electronic signature can be exerted. Even if the e-mail address is stored in the signed state as described above, it is recorded as information that cannot be tampered with, so that it is possible to save that the transaction was genuinely completed.

Note that the transaction date may be stored in the blockchain (30) together with the time authentication acquisition unit (114) of the platform server device (10) acquiring the type stamp from the time authentication authority. Alternatively, the service server device (20) may be configured to transmit to the platform server device (10) including the date signed as registration information and record it on the blockchain (30).

According to Japan's Electronic Bookkeeping Law, the time stamps given to electronic transaction information include time stamps issued by time verification business certified businesses, for example, invoices covered by the law are sent by e-mail. In some cases, a time stamp suitable for this is required. A service provider that electronically sends an invoice needs to individually obtain a time stamp and prepare a verifiable service, but in the present invention, the service can be provided on the platform side.

Specifically, the hash value of the data is transmitted from the platform server device (10) to the time authentication server device of the time certification business certified business operator (TSA) via the network, and a time stamp for the data is created. Upon receiving the transmission of the time stamp data from the time authentication server device, the time stamp data is recorded in the blockchain (30) together with the hash value and signature (email address) of the data.

At the same time, it is also possible to provide an API for verifying the time stamp in the platform server device (10). When the inquiry receiving unit (115) receives at least a hash value for the registration information from the service server device (20) through the API, the time stamp inquiry processing unit (not shown) performs a time stamp verification process on the time authentication server device, and the result is Is also received, the result notification unit (117) can reply to the service server device (20).

Recording of registration information in the blockchain (30) Information on registration results, registration success, and registration failure in (S16) is transmitted (S17) to the service server device (20), and further notified to the user terminal (50) (S18). ).

Next, a processing method for signing a document that has already been saved will be described with reference to FIG. Not only the member who uploaded the document, but also the other party of the transaction can sign on the service server device (20).
Specifically, when the other party's e-mail address is set at the time of uploading, the mail transmission / reception unit (218) notifies the other party of the registered contents.

Based on this, the other party of the transaction also confirms the document on the service server device (20) and performs the "signature" process, so that the signature is transmitted (S20). As mentioned above, you only need to send the email address instead of the digital signature. Alternatively, in the logged-in state, the service server device (20) can refer to the member information DB (22) and acquire the member's e-mail address simply by transmitting the signature signal.

The document may be read again from the data (231) at the time of signing (S21), the hash value may be calculated (S22), or these may be omitted.
Then, the signature (email address) together with the hash value (233) is transmitted (S23) to the platform server device (10) as registration information again. This process allows the parties to the transaction to sequentially add and update signatures.

Upon receiving the updated registration information through the API provided by the information receiving unit (111) of the platform server device (10), the transaction issuing unit (112) issues a transaction related to the registration information (S24). Further, the smart contract processing unit (115) records the registration information (S25) in the blockchain (30) based on the transaction from the transaction issuing unit.

Recording of registration information in the blockchain (30) Information on registration results, registration success, and registration failure in (S25) is transmitted (S26) to the service server device (20), and further notified to the user terminal (50) (S27). ).

Next, a processing method for inquiring management data managed on the service server device (20) will be described with reference to FIG. 7.
In the login state of logging in from the user terminal (50) (S30), the management data is inquired (S31). Specifically, a procedure such as making an inquiry by opening the contract list screen or making an inquiry by pressing the update button can be considered.

Upon receiving the inquiry, the registration information inquiry unit (216) of the service server device (20) reads, for example, the corresponding hash value using the management number as an index (S32), and causes the inquiry reception unit (115) of the platform server device (10). Send (S33). Since only the hash value is transmitted here as well, the platform server device (10) does not participate in the content of the data handled at all.

The search processing unit (116) performs a process of searching (S34) whether or not a hash value is recorded for the blockchain (30), and if a match is found, the signature is also recorded together with the signature. The result notification unit (117) transmits (S35) as a search result.

In the service server device (20), the list generation unit (217) updates the list of management data whose authenticity of information has been authenticated by the blockchain, and transmits (S36) to the user terminal (50).
This result can be considered to be similar to that shown in Table 1. That is, the management data recorded at the time of registration is displayed as authenticated information (S37) after being searched on the blockchain (30).

The present invention stores and manages the data (231) in the service server device (20) so as to be searchable as in the above embodiment, but does not include the data in the registration information transmitted to the platform server device (10). Is preferable.
However, some or all of the data (231) may be stored in the platform server device (10). For example, the database (14) of the higher-level service can be stored in the storage means.

The service server device (20) may perform billing processing as consideration for the service provided to the member. Since the billing processing method is well known, the explanation is omitted, but for example, a fixed monthly fee can be used as a membership, or billing can be made according to the number of times a document is uploaded or the number of times a transaction is completed. For billing processing, the CPU (20) may be provided with a billing processing unit (not shown) and the storage means (23) may be provided with a billing information DB (not shown).

The present invention also proposes integrated management of such billing processing and processing related to member login processing on the platform server device (10) side.

That is, as shown in FIG. 2, when the platform server device (10) is provided with the member information common processing unit (118) and the member information DB (12) and the user terminal (50) tries to log in, the service server device (10) 20) transfers the ID and password to the platform server device (10), or redirects the login screen itself to the platform server device (10), and performs login authentication processing on the platform server device (10).

When the service server device (20) receives the authentication result from the platform server device (10), the service server device (20) is set to the login state.
By managing the member information by the platform server device (10), it becomes possible to handle the managed data (231) and the member information separately, and the safety of data management is improved.
Further, by providing the platform server device (10) with advanced login processing, the service server device (20) can easily adopt an excellent login technique at low cost.

Similar to the login process, the platform server device (10) is provided with the billing information common processing unit (119) and the billing information DB (13), so that the platform server device (10) can perform the billing process for the user terminal (50). You can also do it. By integrating billing processes that require a high degree of security, such as access to credit cards and electronic money, into the platform server device (10), excellent billing processes can be performed at low cost and easily in providing higher-level services. be able to.

Needless to say, this billing process can also use the fee billing process from the operator of the platform server device to the operator of the service server device.

(Another Example 1)
As another example of signing a contract, a paper-based contract procedure can be recorded on the blockchain using an electronic stamping tool.
FIG. 8 is an explanatory diagram of an example of registering stamp information using the information management platform system of the present invention.

The electronic stamping tool used in the present invention has the following configuration. That is, an electronic stamp tool (60) having a stamp inside, a detection unit for detecting the stamp by the stamp, and a transmission unit for transmitting the stamp detection information detected by the detection unit via a wired or wireless communication path, a communication path. It is composed of a stamp information generation device (61) including a receiving unit that receives stamp detection information through, and a stamp information generation unit that acquires time information and position information at the time of reception of the reception unit and generates stamp information. ..

The stamp information generator (61) can be configured with a general smartphone or the like. Then, the stamp information generator (61) reads the two-dimensional barcode (QR code (registered trademark)) (63) written on the paper medium (62) on which the electronic file of the document is printed, and the stamp is stamped. By acquiring the detection information, it is recognized that the service server device (20) has been stamped, that is, the transaction has been completed, and the stamp transmitted from the stamp information generator (61) together with the hash value of the corresponding electronic file. The person information is transmitted to the platform server device (10) as a signature.

According to such a configuration, not only the stamp information can be recorded on the blockchain, but also it can be linked with the signature of the electronic file of the document stored in the service server device (20), so that the electronic contract can be made. And the contract form using the paper medium can be processed in an integrated manner.

(Another Example 2)
The information management platform system (1) according to the present invention is not limited to the management of documents as shown in the above embodiment. The data received by the platform server device (10) from the service server device (20) is arbitrary and can be handled in any field of the database.

As an example, the service server device (20) is connected to a plurality of IoT (Internet Of Things) devices (70) (71) (72) and blocks the communication history with the IoT devices (70) (71) (72). It can also be recorded on the chain (30).
The specific content of the communication history is arbitrary, such as on / off information of the IoT device, detection information of the sensor of the IoT device, operation result information of the IoT device, and the like.

Furthermore, the conclusion of a contract between IoT devices may be used as the communication history. For example, if an IoT device that detects low inventory sends a signal for an additional order and another IoT device that takes the order notifies this consent, the hash value of the information about the contract and the party's. Record the serial number of the IoT device on the blockchain (30).

Each IoT device (70) (71) (72) communicates with the IoT hub (73), and the IoT hub (73) notifies the service server device (20) of the communication history together with the serial number of the IoT device. The hash value calculated from the communication history by a predetermined formula and the serial number as additional information regarding the communication history are transmitted to the platform server device (10) through the API, and the smart contract processing unit (113) records them on the blockchain.

The IoT device in this embodiment may be any device, it is not necessary to use the IoT hub (73), and the IoT device widely distributed on the network is targeted.

According to this configuration, the communication history related to the operation of the IoT devices (70), (71), and (72) can be stored on the blockchain without being tampered with. If recorded together with the time stamp, the operation of various IoT devices can be recorded for verification at a later date.

Similar to the above embodiment, the hash value is transmitted from the service server device (20), and the inquiry receiving unit (115), the search processing unit (116), and the result notification unit (117) of the platform server device (10) are sent. After that, the list generation unit (217) can also display the authenticity of the communication history.

(Other application cases)
Examples of handling data using the information management platform system (1) are listed.
First, it is conceivable that the application software transmits the content to the corresponding service server device and authenticates the content.
For example, the copyright can be authenticated by receiving the content created by the music or drawing application by the service server device (20) and recording the hash value and the time stamp in the blockchain (30).

In addition, the minutes can be authenticated by the Web conferencing application transmitting the recorded / recorded content to the service server device (20) and recording the hash value and the time stamp in the blockchain (30).

The invention note can be authenticated by creating a document of the invention record on the application software, transmitting the document content to the service server device (20), and recording the hash value and the time stamp on the blockchain (30). ..

Secondly, it can also be used to connect an arbitrary device to the service server device (20) and authenticate the data generated by the device. For example, by transmitting the data of the photographed photograph from the digital camera to the service server device (20) and recording the hash value and the time stamp on the blockchain, the function of proving the photographed date and the non-tampering is provided. be able to.

It is also possible to transmit the positioning results of GPS devices provided in automobiles, aircraft, ships, construction machinery, etc. and their identification information to the service server device (20) and record them in the blockchain.

Thirdly, a service combined with existing online storage is also conceivable. For example, a storage service provider can provide a storage service for storing the stored information in accordance with the Electronic Book Storage Law.

Fourth, it can also be applied to the fact that the business operator that provides the crowdsourcing service provides the notarization function of the contract conditions between the participating parties. For example, as an additional service of crowdsourcing, it is possible to record and certify a contract document between a recruiting business operator and a large number of individual business owners on a blockchain.

As described above, in the information management platform system according to the present invention, who created the data to be managed, when the data was created, whether the data has not been modified since the data was created, and who created the data. It can be used universally in various authentication situations related to management data, such as when and what kind of operation was performed.

1 Information management platform system 10 Platform server equipment 20 Service server equipment 30 Blockchain 40 Communication network 50 User terminal 60 Electronic stamping equipment

Claims (15)

1. It is an information management platform system using blockchain.
   Multiple service server devices that provide the desired data management service,
   The service server device and the platform server device are connected to the platform server device for receiving registration information including a hash value of the data from the service server device, registering and inquiring to the blockchain, and performing genuine authentication. Consists of a communication network
   The platform server device includes
   An information receiving unit that provides APIs (Application Programming Interfaces) to the plurality of service server devices and receives the registration information through the APIs.
   A smart contract processing unit that records the registration information in the blockchain based on the transaction from the transaction issuing unit that issues the transaction related to the registration information and the QR action issuing unit when the registration information is received, and the plurality of units. An inquiry receiving unit that provides an API to the service server device of the above and accepts at least a hash value for the registration information through the API.
   A search processing unit that searches whether the inquired transaction with the hash value is recorded on the blockchain, and
   An information management platform system including a result notification unit for notifying the service server device of the search result.
2. The information management platform system according to claim 1, wherein the registration information includes additional information related to the data together with the hash value.
3. The information management platform system according to claim 1 or 2, wherein both the service server device and the platform server device have a Web server function, and the API is a Web API.
4. While managing the data in the service server device so that it can be stored and searched,
   The information management platform system according to any one of claims 1 to 3, wherein the registration information does not include the data managed by the service server device.
5. In a configuration in which each data managed by each of the plurality of service server devices is associated with member information that uses the management service.
   In the platform server device
   The information management platform system according to any one of claims 1 to 4, which is provided with a member information common processing unit that integrates and manages member information, and provides a member information management function.
6. In the platform server device
   The information management platform system according to any one of claims 1 to 5, further comprising a billing information common processing unit that integrates and manages billing information of the plurality of service server devices, and provides a billing information management function for each member.
7. The service server device is a management service that manages electronic files of documents as the data.
   The hash value calculated from the electronic file by a predetermined formula and the signature information for the document are transmitted to the information receiving unit of the platform server device through the API, and at the same time.
   According to any one of claims 1 to 6, the hash value is transmitted to the inquiry receiving unit of the platform server device through the API, the search result from the result notification unit is received, and the contract status is displayed. The information management platform system described.
8. The service server device is connected to a plurality of IoT (Internet of Things) devices, and the data is a communication history with the IoT devices.
   A hash value calculated from the communication history by a predetermined formula and additional information about the communication history are transmitted to the information receiving unit of the platform server device through the API, and at the same time.
   Any of claims 1 to 7 that transmit the hash value to the inquiry receiving unit of the platform server device through the API, receive the search result from the result notification unit, and display the authenticity of the communication history. Information management platform system described in Crab.
9. It is an information processing method in an information management platform system using a blockchain.
   The information management platform system is composed of a plurality of service server devices, a platform server device, and a communication network connecting the service server device and the platform server device.
   A step of transmitting registration information including a hash value of the data from the service server device that provides a management service of desired data.
   A step in which the information receiving unit of the platform server device receives the registration information through an API (Application Programming Interface).
   A step in which the transaction issuing unit of the platform server device issues a transaction related to the registration information.
   An information processing method in which a smart contract processing unit of the platform server device has a step of recording the registration information in a blockchain based on a transaction from the transaction issuing unit.
10. A step of transmitting at least a hash value from the service server device with respect to the registration information.
    A step in which the inquiry receiving unit of the platform server device receives at least a hash value for the registration information through an API (Application Programming Interface).
    A step in which a search processing unit of the platform server device searches for a transaction of the inquired hash value recorded on the blockchain.
    A step in which the result notification unit of the platform server device notifies the service server device of the search result.
    The information processing method according to claim 9, further comprising a step of displaying the search result in the service server device.
11. The information processing method according to claim 9 or 10, wherein the registered information includes additional information related to the data together with the hash value.
12. The information processing method according to any one of claims 9 to 11, wherein both the service server device and the platform server device have a Web server function, and the API is a Web API.
13. While managing the data in the service server device so that it can be stored and searched.
    The information processing method according to any one of claims 9 to 12, wherein the registration information does not include the data managed by the service server device.
14. The service server device is a service that manages electronic files of documents as the data.
    The hash value calculated from the electronic file by a predetermined formula and the signature information for the document are transmitted to the information receiving unit of the platform server device through the API, and at the same time.
    According to any one of claims 9 to 13, the hash value is transmitted to the inquiry receiving unit of the platform server device through the API, the search result from the result notification unit is received, and the contract status is displayed. The information processing method described.
15. The service server device is connected to a plurality of IoT (Internet of Things) devices, and the data is a communication history with the IoT devices.
    A hash value calculated from the communication history by a predetermined formula and additional information about the communication history are transmitted to the information receiving unit of the platform server device through the API, and at the same time.
    7. Information processing method described in Crab.
    
    
    

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