JP7703371B2 - Server device, method and program - Google Patents

Description

The present invention relates to a server device, method, and program for real estate transactions using non-fungible tokens (NFTs).

For example, non-fungible tokens (NFTs) issued according to the Ethereum Request for Comments (ERC) 721 standard are known. NFTs are not fungible and are treated as cryptocurrencies such as Ethereum, and operations such as changing ownership are performed by smart contracts in the blockchain. Patent Document 1 discloses Ethereum.

JP 2019-160316 A

The embodiment of the present invention aims to provide a server device, method, and program for real estate transactions using NFT.

To solve the above problem, the server device according to the embodiment includes a providing device that provides a non-fungible token, a network interface configured to communicate via a network, a memory configured to store predetermined instructions, and a processor configured to perform the following processing based on the instructions stored in the memory: acquiring the non-fungible token from the providing device, associating the acquired non-fungible token with real estate information that identifies real estate, proving a relationship between the real estate and at least one of a person and an object that adds value to the real estate, matching the association with the proof, publishing the association on the network, and setting a transaction price for the real estate based on a first attribute of at least one of the person and the object.

FIG. 1 illustrates a configuration of a network system. FIG. 2 is a diagram illustrating a hardware configuration of each node in the network system. A diagram showing the configuration of a first rental real estate disclosure system operating on a real estate transaction server. A diagram showing the configuration of a contract system operating in a real estate transaction server. 11 is a diagram illustrating an example of first rental real estate information published by a real estate transaction server. FIG. 13 is a diagram illustrating a weighting coefficient table used by the attribute management device to manage combinations of attributes FAi and BAj and weighting coefficients WFij. FIG. FIG. 2 is a diagram illustrating a communication sequence between nodes in the network system. A diagram showing the configuration of a second rental property disclosure system used in place of the first rental property disclosure system in a real estate transaction server. A figure illustrating a second rental real estate information published by a real estate transaction server. A figure illustrating a third rental real estate information made public by a real estate transaction server.

[First embodiment]
The first embodiment will be described in detail below with reference to the drawings. In the drawings, the same reference numerals and names are used for substantially the same components, processes, information, and data. When one of the multiple possible components is indicated without specifying it, the subscript of the reference numeral of the component may be omitted. Furthermore, devices that can be the subject of information processing may be collectively referred to as "nodes."

In addition, the numbers and types of components and data are shown in the drawings as examples and may be increased, decreased, or changed as appropriate. The order of communication between nodes is shown as examples and may be changed as appropriate. For convenience of illustration, some of the names of components and information, such as "device," "system," and "information," may be omitted as appropriate in the drawings. Similarly, "registered matters certificate" may be abbreviated to "registry" in the drawings. In addition, components that are not related to the essential description of the invention may be omitted as appropriate in the drawings. Furthermore, m and n are integers of 2 or more, i and i' (i ≠ i') are integers from 1 to m, and j and j' (j ≠ j') are integers from 1 to n.

[Configuration of Network System 1]
The configuration of the network system 1 according to the embodiment will be described below. Fig. 1 is a diagram showing the configuration of the network system 1. As shown in Fig. 1, the network system 1 has a real estate transaction server 2, a terminal device 14 of a past resident, a terminal device 16 of a prospective tenant, a terminal device 18 of a real estate owner, an NFT providing device 102, a Legal Affairs Bureau system 104, a financial institution system 106, and an information server 108, which are connected to each other so as to be able to communicate data with each other via a communication network 100 such as the Internet that combines wired communication lines and wireless communication lines.

As mentioned above, the real estate transaction server 2, terminal devices 14, 16, 18, communication network 100, providing device 102, Legal Affairs Bureau system 104, financial institution system 106 and network system 108 that constitute the network system 1 may be collectively referred to as nodes.

The network system 1 is used to increase the value of real estate due to the presence of special objects at or near the property, or due to the past ownership or residence of a person, such as a celebrity, in order to sell, buy, sell, or rent the property. However, for the sake of simplicity, the following explanation will be given as an example in which the network system 1 is used to rent real estate whose value has been increased by the past residence of a person.

It will be clear to those skilled in the art that by replacing the terms "rent", "lessor", "tenant", "rent fee" and "market rent" in the following descriptions of real estate rentals with "sale", "seller", "buyer", "sales price" or "transaction price", and "market price" or "market transaction price", respectively, the descriptions can be read as descriptions of real estate sales. Similarly, it will also be clear to those skilled in the art that by replacing "residence" with "ownership", the descriptions can be read as descriptions of how the value of real estate is increased by past ownership.

In the following description, "transaction price" can mean both "rent" and "sales price." In addition, in the following description, this "market rent" can mean "market price," "market sales price," and "market transaction price." In the following description, "transaction" can include concepts such as "rent," "lease," "sale," "purchase," and "buying and selling."

Figure 2 is a diagram showing the hardware configuration of each node of the network system 1 shown in Figure 1. As shown in Figure 2, these nodes include a processor (CPU; Central Processing Unit) 122, which are connected to each other via a bus 120 so that they can input and output data, a ROM (Read Only Memory) 124, a RAM (Random Access Memory) 126, a network interface (IF) 128 connected to the communication network 100, an input/output device (I/O) 130 to which user interface (UI) devices such as a printer, a display, and a keyboard are connected, a recording device 132 that writes and reads data to and from recording media such as flash memory and DVDs, and an external device IF 134 to which a printer 102 or the like is connected.

In addition to being configured as a standalone device, each node in the network system 1 can be configured as a virtual computer in which one computer is used virtually as multiple computers, or can be configured as a cloud system including multiple computers.

The processing of each node and its components in the network system 1 can be realized by specialized hardware, can be realized by the processor 122 executing software that includes instructions and commands and is stored in the ROM 124 shown in FIG. 2, or can be realized by a combination of hardware and software.

[Processing of each node in network system 1]
In the network system 1, the past resident's terminal device 14 is used by a person who has lived in a rental property owned by a property owner, in the form of a detached house or an apartment building, before a new tenant moves in, and who thus adds value to the rental property. However, "past resident" is a term that contrasts with "new tenant," and includes a person who will add future value to the rental property at a specific point in time.

People who add value to rental real estate include, for example, entertainers such as singers, actors and comedians, athletes such as professional baseball players, professional soccer players and Olympic athletes, and cultural figures such as writers, scientists and critics. Attributes such as the fame and talent of these people (first attributes) become added value that increases the rental price of rental real estate.

The rental applicant's terminal device 16 is used by a fan or admirer of the entertainers, athletes, and cultural figures mentioned above, who has attributes (second attributes) such as preferences for the looks, fame, and talent of past residents of the rental property, and who is willing to pay a rent higher than the market average for the rental property in which such a person resided.

The property owner's terminal device 18 is used by a person who owns rental property and wishes to add value to this rental property through the network system 1.

The providing device 102 is operated by a company that operates a cryptocurrency exchange under the name of Coinbase (registered trademark), Binance (registered trademark), or bitFlyer (registered trademark). The providing device 102 is a cryptocurrency exchange or sales office system that trades NFTs as cryptocurrencies such as Ethereum, and also exchanges cryptocurrencies for legal tender.

The Legal Affairs Bureau system 104 is operated by the Legal Affairs Bureau, and issues data on a certificate of real estate registration (registry) to the real estate transaction server 2. In other words, the Legal Affairs Bureau system 104 communicates with the real estate transaction server 2 via the communication network 100, and receives an application for issuance of a certificate of real estate registration of a rental property of a real estate owner from the Legal Affairs Bureau system 104. Furthermore, upon receiving the application, the Legal Affairs Bureau system 2 issues data on a certificate of real estate registration (registry) to the real estate transaction server 2, and receives payment of a fee from the real estate transaction server 2.

The financial institution system 106 is operated, for example, by a bank, and performs processing for the transfer of money between past residents and the real estate transaction server 2, and between the lessee of the rental property and the property owner. In other words, when the financial institution system 106 receives an instruction from the property owner's terminal device 18 via the real estate transaction server 2 to provide money as an incentive to the past resident, it performs processing to transfer money from the property owner's account to the past resident's account. The financial institution system 106 also performs processing to transfer money for rent from the property lessee's account to the property owner's account.

Note that giving money to past residents is one example of giving incentives. Incentives can also be given, for example, by returning several months' rent to people whose names, etc. are published on certificates and consent forms as past residents on the real estate transaction server 2. Incentives can also be given by exempting or reducing several months' rent to people who are currently residing in the rental property and adding value, and whose names, etc. will be published in future on certificates and consent forms on the real estate transaction server 2.

The information server 108 is operated by, for example, parties involved in real estate transactions, such as real estate agents, and by each of a number of businesses that provide real estate information under names such as "Suumo (registered trademark)" and "Rains (registered trademark)." In response to inquiries from other nodes, such as the terminal devices 16, 18 and the real estate transaction server 2, the information server 108 provides advertising information, including the rental prices of each of a number of properties, to the inquiring node via a web page or the like.

[Configuration and processing of rental real estate disclosure system 20]
Fig. 3 is a diagram showing the configuration of a first rental real estate disclosure system 20 that operates in the real estate transaction server 2 shown in Fig. 1. As shown in Fig. 3, the rental real estate disclosure system 20 includes an NFT transaction device 200, a registration certificate acquisition device 202, a correspondence device 204, a certificate creation device 210, an authorization device 212, an incentive granting device 214, and a disclosure device 220.

Using these components, the rental property disclosure system 20 acquires NFTs as cryptocurrencies such as Ethereum from an exchange or sales outlet, acquires real estate registration certificate (registry) data from the Legal Affairs Bureau, proves that a celebrity has previously resided in the property, obtains permission from the celebrity, publishes rental property information that associates these facts with the NFT on the communications network 100, and provides incentives to the celebrity.

Figure 4 is a diagram showing the configuration of the contract system 24 that operates in the real estate transaction server 2 shown in Figure 1. As shown in Figure 4, the contract system 24 includes an attribute management device 240, an order receiving device 242, a market rent calculation device 244, an individual rent calculation device 246, a price research device 248, and a contract device 250.

These components allow the contract system 24 to view the rental property information published by the rental property disclosure system 20, process the attributes of a new tenant who has indicated his/her intention to rent via the terminal device 16, and present a rent to the new tenant. If the new tenant accepts the presented rent, the contract system 24 then enters into a contract to rent the rental property to the new tenant or makes a reservation for the same.

In the rental property disclosure system 20 shown in FIG. 3, the NFT transaction device 200 acquires an NFT from the provision device 102 in response to a request made via the property owner's terminal device 18, and outputs the identifier of the acquired NFT to the matching device 204.

The registration certificate acquisition device 202, in response to a request made via the property owner's terminal device 18, acquires data on the registration certificate (registry) of the rental property that the property owner wishes to rent using the real estate transaction server 2 from the Legal Affairs Bureau system 104, creates real estate information that identifies the rental property, including information such as the address, owner, size, and layout of the rental property, and outputs this information to the matching device 204 and the contract system 24.

The matching device 204 matches the real estate information input from the registration certificate acquisition device 202 with the NFT identifier input from the NFT trading device 200 to provide non-fungibility, and outputs the information to the disclosure device 220.

The certificate creation device 210 creates certificate data that proves that a person who adds value to a rental property that is to be rented using the real estate transaction server 2 resides in the rental property according to operations performed by the property owner via the terminal device 18. The certificate creation device 210 outputs the created certificate data to the permission device 212, the incentive granting device 214, and the disclosure device 220.

The permission device 212 transmits the certificate input from the certificate creation device 210 to the past resident via the terminal device 16, and obtains permission from the past resident to make the certificate publicly available through the real estate transaction server 2 via the terminal device 16. The permission device 212 notifies the incentive granting device 214 and the public display device 220 of the obtained consent.

The incentive granting device 214 notifies the property owner via the terminal device 18 of the permission given by the past resident to make the certificate public. The incentive granting device 214 further requests the financial institution system 106 to grant the past resident a monetary incentive, in accordance with instructions given by the property owner via the terminal device 18 in response to this notification.

Figure 5 is a diagram illustrating an example of the first rental real estate information published by the real estate transaction server 2. As shown in Figure 5, the publishing device 220 creates image data showing the real estate information input from the matching device 204 and associated with the NFT identifier, the certificate input from the certificate creation device 210, and the license input from the licensing device 212 in association with each other, and displays the image data on the display of the UI device of the tenant's terminal device 16 via the communication network 100.

In the contract system 24 shown in FIG. 4, the price research device 248 uses the information server 108 to research the rents in the vicinity of the rental property identified by the real estate information, and outputs the results of the research to the price calculation device 244.

The market rent calculation device 244 estimates the appropriate rent at the market price of the rental property identified by the real estate information based on the results of the survey by the price survey device 248. The market rent calculation device 244 regards the result of this estimation as the market rent and outputs data indicating the market rent to the individual rent calculation device 246.

Figure 6 is a diagram illustrating a weighting coefficient table used by the attribute management device 240 shown in Figure 4 to manage combinations of attributes FAi and BAj and weighting coefficients WFij. As shown in Figure 6, the attribute management device 240 stores and manages weighting coefficients WF11 to WFmn that are determined for each combination of attributes FA1 to FAm of past residents and attributes BA1 to BAn of new tenants and are multiplied by the market rent.

As described above, the attributes FA1 to FAm of past residents are defined based on whether the past residents were entertainers, athletes, cultural figures, etc., and on the age and gender of these people. The attributes FA1 to FAm of past residents themselves can add value to the rental property. The attributes BA1 to BAn of new tenants are collected via the tenant's terminal device 16, and are defined based on the preferences of the tenant who is about to rent a new rental property for specific entertainers, athletes, cultural figures, etc., as well as personal information such as the tenant's age and gender.

For example, if the attribute FAi of the past resident is a particular celebrity and the attribute BAj of the new tenant is an ardent fan of that celebrity, the weighting coefficient WFij for these combinations will be high. Alternatively, if the attribute FAi of the past resident is a particular celebrity and the attribute BAj of the new tenant is a fan of another celebrity, the weighting coefficient WFij for these combinations will be low. In general, the weighting coefficient WFij is ≧1.

For example, when the attribute FAi' of a past resident is a specific athlete and the attribute BAj' of a renter is an ardent fan of that athlete, the weighting coefficient WFi'j' for these combinations will be high. Alternatively, when the attribute FAi' of a past resident is a specific athlete and the attribute BAj of a renter is an ardent fan of a specific entertainer, the weighting coefficient WFi'j' for these combinations will be low.

As shown in the example here, the weighting coefficients WFij, WFi'j' will be higher or lower depending on the combination of the past resident's attributes FAi, FAi' and the tenant's attributes BAj, BAj'. As mentioned above, not only is added value given to the rental property based on the past resident's attributes FAi alone, but the added value given to the rental property will change depending on the combination of the past resident's attributes FAi and the new tenant's attributes BAj.

The attribute management device 240 receives feedback from the order receiving device 242 and appropriately reviews and updates the value of the weighting coefficient WFij. For example, when the weighting coefficient WFij is used, the attribute management device 240 decreases the value of the weighting coefficient WFij if the length of time from when the real estate information is made public to when a rental application is made is longer than average, and increases the value of the weighting coefficient WFij if the length of time is shorter than average.

The order receiving device 242 shown in FIG. 4 looks at the rental property information published by the rental property disclosure system 20, and accepts from a new tenant who applies for rental via the terminal device 16 the attributes BAj and the information of the new tenant necessary for rental, such as the occupation and income of the new tenant. The order receiving device 242 outputs the attributes BAj of the accepted new tenant to the individual rent calculation device 246, and outputs the information of the new tenant to the contract device 250. The information of the new tenant is shown to the property owner via the terminal device 18.

The order receiving device 242 also presents the individual rent calculated for this new tenant by the individual rent calculation device 246 to the lessor's terminal device 16. When the new tenant accepts the individual rent via the terminal device 16, this is notified to the contract device 250. The order receiving device 242 also feeds back data such as the length of time for which the rental application was made from the time the real estate information was made public to the attribute management device 240.

When the individual rent calculation device 246 receives input of the attributes BAj of a new tenant from the order receiving device 242, it reads out the weighting coefficient WFij corresponding to the combination of the attributes FAi of the previous occupants of this rental property and the attributes BAj of the new tenant from the weighting coefficient table shown in FIG. 6. The individual rent calculation device 246 further performs a calculation to multiply the market rent of the rental property input from the market rent calculation device 244 by the read out weighting coefficient WFij, sets it as the individual rent, and outputs it to the order receiving device 242.

In the above, we have exemplified a case in which the weighting coefficient WFij, which is defined for the combination of the attributes FAi of the past resident and the attributes BAj of the new tenant, is multiplied by the market rent of the rental property to set the individual rent, but the individual rent may be determined based on the preferences of the new tenant. For example, if the past resident of a particular rental property is a celebrity and has a fan club, it is possible to survey the members of the fan club and set the desired rent that they are estimated to be willing to pay if they wish to live in this particular rental property as the individual rent.

The contracting device 250 receives a notification from the order receiving device 242 that the new tenant has agreed to the individual rent. The contracting device 250 then presents information about the new tenant to the property owner via the terminal device 18, and after obtaining the consent of the property owner who has confirmed this information, enters into a contract to rent the property to the new tenant or makes a reservation for the rental property.

[Operation of Network System 1]
The following describes the operation of the network system 1. Fig. 7 is a diagram illustrating a communication sequence between nodes of the network system 1. In step S100 shown in Fig. 7, the real estate transaction server 2 uses the financial institution system 106 in response to a request from a real estate owner via the terminal device 18 to investigate the rents of rental properties surrounding the rental property to be rented using the real estate transaction server 2.

In step S102, the real estate transaction server 2 calculates the market rental price based on the results of the investigation in processing S100.

In step S104, the real estate transaction server 2 acquires an NFT using the financial institution system 106 and the providing device 102 in response to a request from the real estate owner via the terminal device 18. Note that if the real estate owner has acquired an NFT prior to the processing of S100, instead of the processing of S104, the real estate transaction server 2 is notified of the NFT's identifier via the real estate owner's terminal device 18. Therefore, in this case, the terminal device 18 functions as the providing device 102.

In step S106, the real estate transaction server 2 uses the Legal Affairs Bureau system 104 and the financial institution system 106 to obtain data on the registration certificate (registry) of the rental property.

In step S108, the real estate transaction server 2 creates the real estate information, certificate, and license agreement shown in FIG. 5.

In step S110, the real estate transaction server 2 sends the certificate and a letter of consent to the past resident via the terminal device 14, and requests permission to make the certificate public.

In step S112, the former resident checks the contents of the certificate and consent form displayed on the terminal device 14 and agrees to the disclosure of the certificate.

In step S114, the terminal device 14 transmits a consent form indicating that the past resident has consented to the disclosure of the certificate to the real estate transaction server 2.

In step S116, the real estate transaction server 2 associates the real estate information with the NFT identifier, as shown in FIG. 5, and further associates the certificate with the letter of consent to create rental real estate information.

In step S118, the real estate transaction server 2 publishes the rental property information created in the processing of S116 on the communication network 100.

In step S120, a new tenant who has viewed the rental property information published on the communication network 100 via the terminal device 16 applies to rent the rental property to the real estate transaction server 2. This application includes the attribute BAj of the new tenant.

In step S124, the real estate transaction server 2 reads the weighting coefficient WFij corresponding to the combination of the attributes FAi of the past resident and the attributes BAj of the new tenant from the weighting coefficient table shown in FIG. 6, and multiplies it by the market rent calculated in the processing of S102 to calculate the individual rent.

In step S126, the real estate transaction server 2 presents the individual rent calculated in the processing of S124 to the tenant via the terminal device 16.

In step S128, the tenant checks and accepts the individual rental fees displayed on the terminal device 16.

In step S130, the terminal device 16 notifies the real estate transaction server 2 that the tenant has accepted the individual rent.

In step S132, the real estate transaction server 2 transmits information about the new tenant and the individual rent to the terminal device 18.

In step S134, the property owner checks the information about the new tenant and the individual rent displayed on the terminal device 18 and agrees to rent the property to the new tenant.

In step S136, the terminal device 18 notifies the real estate transaction server 2 that the property owner has agreed to rent the rental property to the new tenant.

In step S138, the real estate transaction server 2 enters into a contract for rental property or makes a reservation for the property via the terminal device 16.

In step S140, the real estate transaction server 2 uses the financial institution system 106 to provide a monetary incentive to the past resident. As described above, the incentive can also be provided by exempting the rent, etc.

[Second embodiment]
The second embodiment will be described below. Fig. 8 is a diagram showing the configuration of a second rental real estate disclosure system 26 used in place of the first rental real estate disclosure system 20 in the real estate transaction server 2. As shown in Fig. 8, the rental real estate disclosure system 26 adopts a configuration in which the matching device 204 and the disclosure device 220 of the rental real estate disclosure system 20 are replaced with a rental real estate disclosure system 260 and a disclosure device 262. In the rental real estate disclosure system 26, the registration certificate acquisition device 202, the certificate creation device 210 and the permission device 212 output real estate information, a certificate and a permission letter to the matching device 260.

Figure 9 is a diagram illustrating an example of second rental real estate information published by the real estate transaction server 2. As shown in Figure 9, the rental real estate publication system 260 associates the real estate information, the certificate, and the license, and associates the associated items with an NFT identifier to create rental real estate information. The publication device 262 publishes the rental real estate information shown in Figure 9 on the communication network 100.

In this way, by associating an NFT identifier with the associated real estate information, certificate, and license, it is possible to provide non-fungibility not only to the real estate information but to all of these combinations. Note that if the real estate transaction server 2 uses the rental property disclosure system 26 instead of the rental property disclosure system 20, the communication sequence shown in FIG. 7 can be modified as appropriate.

[Modification]
Fig. 10 is a diagram illustrating an example of the third rental real estate information made public by the real estate transaction server 2. As described above in Figs. 5 and 9, the case where an NFT identifier is associated with only the real estate information and the case where an NFT identifier is associated with all of the real estate information, the certificate, and the license letter have been described, but as shown in Fig. 10, the real estate information and the certificate may be associated, and the associated items may be associated with an NFT identifier.

The processes and procedures of the present disclosure may be realized not only by the devices explicitly described in the embodiments, but also by software, hardware, or a combination of these. Specifically, the processes and procedures described in this specification may be realized by implementing logic corresponding to the processes in a medium such as an integrated circuit, volatile memory, non-volatile memory, magnetic disk, or optical storage. In addition, the processes and procedures described in this specification may be implemented as computer programs and executed by various computers including terminal devices and server devices.

Processes and procedures described herein as being performed by a single device, software, component, and/or module may be performed by multiple devices, multiple software, multiple components, and/or multiple modules. In addition, various information described herein as being stored in a single memory and storage device may be stored in multiple memories included in a single device or in multiple memories distributed across multiple devices. Furthermore, multiple software and hardware described herein may be realized by integrating them into fewer components or by decomposing them into more components.

Although an embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This new embodiment can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. This embodiment and its variations are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims.

1 Network system, 100 Communication network, 102 Providing device, 104 Legal affairs bureau system, 106 Financial institution system, 108 Information server, 2 Real estate transaction server, 20, 26 Rental real estate disclosure system, 200 NFT transaction device, 202 Registration certificate acquisition device, 204, 260 Correspondence device, 210 Certificate creation device, 212 Approval device, 214 Incentive granting device, 220, 262 Disclosure device, 24 Contract system, 240 Attribute management device, 242 Order receiving device, 244 Market rental fee calculation device, 246 Individual rental fee calculation device, 248 Price research device, 250 Contract device

Claims (18)

A providing device for providing a non-fungible token and a network interface configured to communicate over a network;
a memory configured to store predetermined instructions;
Based on the instructions stored in the memory,
Acquire the non-fungible token from the provider;
Associating the acquired non-fungible token with real estate information that identifies the real estate;
Proof of the relationship between the real estate and at least one of the people and things that add value to the real estate;
publishing the association and the certificate on the network;
setting a transaction price for the real estate based on a first attribute of at least one of the person and the object;
A processor configured to perform processing;
A server device including: The server device according to claim 1, wherein the transaction price of the real estate is the desired transaction price of the real estate to which the added value has been given. The processor, based on the predetermined instruction command,
setting a transaction price for the real estate based on a second attribute of a person who will transact with the real estate in response to the disclosure on the network;
The server device of claim 1 further configured to perform processing. The processor, based on the instructions stored in the memory,
Investigate the market price of the real estate,
multiplying the market price by a weighting coefficient that is predetermined for each combination of the first attribute and the second attribute, thereby setting a transaction price of the real estate;
The server device of claim 3 further configured to perform processing. 5. The server device according to claim 3 , wherein the second attribute is a preference of a person who will enter into a transaction for the real estate with the person. The server device according to claim 1 , wherein a person adds value to the real estate. The server device according to claim 6 , wherein the person adds value to the real estate by either owning the real estate or living in the real estate. The processor, based on the instructions stored in the memory,
providing an incentive to said person;
8. A server device according to claim 6 or 7, configured to perform processing. The server device according to claim 8, wherein the incentive is to give money to the person. The server device of claim 8, wherein when the real estate is a rental property, the incentive is to waive or reduce the person's rent. The processor, based on the instructions stored in the memory,
obtain permission from said person to publish said certification;
The server device according to any one of claims 6 to 8 , further configured to perform processing. The processor, based on the instructions stored in the memory,
Associating the acquired non-fungible token with the real estate information and at least one of the certification and the permission to publish;
The server device of claim 11 configured to perform processing. The processor, based on the instructions stored in the memory,
publishing the associated non-fungible token, the real estate information, and at least one of the attestation and the authorization for publishing on the network;
The server device of claim 12 configured to perform processing. 14. The server device according to claim 1, wherein the real estate is a subject of sale and purchase, and a person who agrees to a transaction for the real estate can become a buyer of the real estate. 14. The server device according to claim 1, wherein the real estate is available for lease, and a person who agrees to a transaction for the real estate can become a tenant of the real estate. The server device according to claim 1 , wherein the association between the non-fungible token and the real estate information is performed by associating an identifier of the non-fungible token with the real estate information. A providing device for providing a non-fungible token and a network interface configured to communicate over a network;
a memory configured to store predetermined instructions;
A computer including
Acquire the non-fungible token from the provider;
Associating the acquired non-fungible token with real estate information that identifies the real estate;
Proof of the relationship between the real estate and at least one of the people and things that add value to the real estate;
publishing the association and the certificate on the network;
setting a transaction price for the real estate based on a first attribute of at least one of the person and the object;
A processor configured to perform processing;
A program that functions as a A providing device for providing a non-fungible token and a network interface configured to communicate over a network;
a memory configured to store predetermined instructions;
A method performed by a processor executing the predetermined instruction command in a computer including the
obtaining the non-fungible token from the provider;
Associating the acquired non-fungible token with real estate information identifying real estate;
providing proof of a relationship between said real property and at least one of a person and an object that adds value to said real property;
publishing the association and the certificate on the network;
setting a transaction price for the real estate based on a first attribute of at least one of the person and the object;
The method includes:

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