Information processing apparatus and information processing method

Abstract

To transfer ownership of an object and ownership of a non-fungible token in conjunction with each other.SOLUTION: The information processing apparatus 1 includes the storage unit 12 configured to store object unique information unique to an object and a non-fungible token corresponding to the object in association with each other, the acquisition unit 131 configured to acquire ownership transfer information including the non-fungible token whose ownership has been transferred and user information indicating a new user of the non-fungible token, and when the acquisition unit 131 acquires the transfer information, the information processing apparatus 1 specifies the object unique information associated with the non-fungible token included in the transfer information in the storage unit 12. And a notification unit that notifies the user indicated by the user information included in the transfer information or a settlement server that performs settlement based on the debt information of the debt information related to the payment of the price of the object to the owner of the object corresponding to the object unique information.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an information processing device and an information processing method. [Background technology]

[0002] In recent years, non-fungible tokens (NFTs) associated with digital art and the like have been bought and sold (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-052121 Summary of the Invention [Problem to be solved by the invention]

[0004] Non-fungible tokens can be associated not only with intangible things like digital art, but also with physical objects. When the non-fungible token or the object is bought and sold, there is a need to transfer ownership of the object and ownership of the non-fungible token in tandem.

[0005] The present invention has been made in consideration of these points, and aims to transfer ownership of an object and ownership of a non-fungible token in conjunction with each other. [Means for solving the problem]

[0006] An information processing device according to a first aspect of the present invention has a memory unit that stores object-specific information unique to an object and a non-fungible token corresponding to the object in association with each other; an acquisition unit that acquires ownership transfer information including the non-fungible token whose ownership has been transferred and user information indicating a new user of the non-fungible token; a generation unit that, when the acquisition unit acquires the transfer information, identifies in the memory unit the object-specific information associated with the non-fungible token included in the transfer information and generates debt information relating to payment of the price of the object by the user indicated by the user information included in the transfer information to the owner of the object corresponding to the object-specific information; and a notification unit that notifies the generated debt information to the user indicated by the user information included in the transfer information or to a payment server that makes payment based on the debt information.

[0007] The acquisition unit acquires the transfer information including user identification information for identifying the source user, who is the user before the ownership of the non-fungible token is transferred, and the generation unit may refer to a server that performs settlement of the non-fungible token, identify the account information of the source user indicated by the user identification information of the source user included in the transfer information, and generate the debt information including the identified account information of the source user.

[0008] The acquisition unit may acquire the transfer information including user identification information for identifying the new user of the non-fungible token, and the generation unit may refer to a server that makes payments for the non-fungible token, identify the account information of the new user indicated by the user identification information of the new user included in the transfer information, and generate the debt information including the identified account information of the new user.

[0009]

[0010]

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[0015]

[0016] An information processing method according to a second aspect of the present invention includes the steps of: acquiring ownership transfer information, executed by a computer, including a non-fungible token whose ownership has been transferred and user information indicating a new user of the non-fungible token; upon acquiring the transfer information, identifying object-specific information associated with the non-fungible token included in the transfer information in a memory unit that associates and stores object-specific information unique to an object with the non-fungible token corresponding to the object, and generating debt information relating to payment of the price of the object by the user indicated by the user information included in the transfer information to the owner of the object corresponding to the object-specific information; and notifying the generated debt information to the user indicated by the user information included in the transfer information or a payment server that makes payment based on the debt information. [Effects of the Invention]

[0017] According to the present invention, it is possible to transfer ownership of an object and ownership of a non-fungible token in conjunction with each other. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a diagram illustrating an overview of an information processing device. [Figure 2] FIG. 2 is a diagram illustrating a functional configuration of an information processing device. [Figure 3] FIG. 10 is a diagram illustrating an example of registration information. [Figure 4] 10A and 10B are diagrams showing changes in the screen of the user terminal when the user terminal displays content. [Figure 5] 10 is a flowchart showing the flow of processing related to updating the owner of an NFT in accordance with the transfer of an item in the information processing device 1. DETAILED DESCRIPTION OF THE INVENTION

[0019] [Overview of information processing device 1] 1 is a diagram illustrating an overview of an information processing device 1. The information processing device 1 is a computer that provides content corresponding to a non-fungible token associated with an object O. Hereinafter, the non-fungible token may also be referred to as an NFT.

[0020] The information processing device 1 is communicatively connected to a user terminal 2 used by a user and a predetermined blockchain 3 that manages NFTs corresponding to an object O. The object O is, for example, a physical figurine or ring, and is assigned a display identifier i for displaying content. The object O is also provided with an NFC (Near Field Communication) tag for launching a predetermined web application for displaying content. In the following description, the object refers to an object that is provided with a display identifier and an NFC tag.

[0021] The content is, for example, content that does not have a physical form. Specifically, the content is AR (Augmented Reality) content that is displayed in correspondence with the position of a display identifier i of the object O when the user terminal 2 captures an image of the object O and displays the object O on a display device such as its own display unit.

[0022] When the user brings the user terminal 2 close to the object O, the user terminal 2 recognizes the NFT tag. The NFT tag contains the URL of a specific web application, and the user terminal 2 accesses the URL contained in the NFT tag and executes the specific web application. When the user terminal 2 executes the specific web application, it activates the imaging unit provided in the user terminal 2.

[0023] When capturing an image of the object O, the user terminal 2 reads the display identifier i provided on the object O ((1) in FIG. 1). The user terminal 2 transmits the read display identifier to the information processing device 1 ((2) in FIG. 1).

[0024] The information processing device 1 previously stores a display identifier, an NFT corresponding to the display identifier, and content corresponding to the NFT in association with each other. When the information processing device 1 acquires a display identifier i, it identifies the content corresponding to the display identifier i ((3) in FIG. 1). The information processing device 1 then transmits the identified content to the user terminal 2 ((4) in FIG. 1). The user terminal 2 displays the received content in correspondence with the position of the display identifier i of the object O displayed on its display unit ((5) in FIG. 1).

[0025] A user can sell an object to another user on a predetermined buying and selling site. For example, when a user sells an object O that the user owns to another user ((6) in FIG. 1), ownership transfer information including object-specific information of the object whose ownership has been transferred and user information indicating the user who will have ownership after the transfer is stored in a management server 4 that manages the buying and selling of objects.

[0026] The information processing device 1 acquires the newly stored transfer information in the management server 4 ((7) in FIG. 1). Upon acquiring the transfer information, the information processing device 1 identifies the NFT associated with the object-specific information included in the transfer information. The information processing device 1 then executes an update process to update the owner identification information of the identified NFT stored in the blockchain 3 to a user ID for identifying the user indicated by the user information included in the transfer information, thereby updating the owner of the NFT ((8) in FIG. 1). In this way, the information processing device 1 can transfer the ownership of the object and the ownership corresponding to the object in conjunction with each other.

[0027] [Functional configuration of information processing device 1] Next, a detailed description will be given of the configuration of the information processing device 1. Fig. 2 is a diagram showing the functional configuration of the information processing device 1. The information processing device 1 has a communication unit 11, a storage unit 12, and a control unit 13.

[0028] The communication unit 11 is a communication interface for transmitting and receiving data to and from external devices such as the user terminal 2 and the block chain 3 via a communication network such as the Internet or a mobile phone line.

[0029] The storage unit 12 is a storage medium that stores various types of data, and includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, etc. The storage unit 12 stores programs executed by the control unit 13. The storage unit 12 stores programs that cause the control unit 13 to function as an acquisition unit 131, an identification unit 132, a transmission unit 133, an update unit 134, and a notification unit 135.

[0030] In addition, the memory unit 12 stores registration information that associates a display identifier, which is object-specific information unique to the object and is provided on the object to display content corresponding to the NFT, an NFT issued to a user who owns the object to which the display identifier is attached, and the content corresponding to the NFT.

[0031] A display identifier is attached to an object to uniquely identify the object, and may be a mark itself as the display identifier attached to the object, a character string that can be extracted or identified from the mark, or characteristic information that indicates the characteristics of the display identifier. The following description will be given assuming that the display identifier is a character string that can be extracted or identified from the object. FIG. 3 is a diagram showing an example of registration information. As shown in FIG. 3, it can be seen that the display identifier, the NFT, and the content corresponding to the NFT are stored in association with each other. For ease of explanation, FIG. 3 illustrates display identifiers that represent simple shapes such as spades, diamonds, and clovers.

[0032] The control unit 13 is, for example, a CPU (Central Processing Unit). The control unit 13 executes a program stored in the storage unit 12, thereby functioning as an acquisition unit 131, an identification unit 132, a transmission unit 133, an update unit 134, and a notification unit 135.

[0033] [Providing content corresponding to the product] The control unit 13 provides the user terminal 2 with content corresponding to the non-fungible token associated with the object, and causes the display unit of the user terminal 2 to display the content in association with the object. The process of providing the content will be described below.

[0034] FIG. 4 is a diagram showing changes in the screen of the user terminal 2 when the user terminal 2 displays content. First, when a user brings the user terminal 2 close to the object O, the user terminal 2 reads the URL from the NFT tag attached to the object and executes a predetermined web application based on the read URL. After executing the predetermined web application, the user terminal 2 activates the imaging unit and begins capturing images. The user terminal 2 displays the image captured by the imaging unit on its display unit. As shown in FIG. 4(a), when the user terminal 2 captures an image of the object O, it reads the display identifier i provided on the object O. Then, the user terminal 2 transmits an acquisition request for content corresponding to the display identifier i to the information processing device 1. The acquisition request includes the read display identifier i.

[0035] The acquisition unit 131 acquires an acquisition request from the user terminal 2, thereby acquiring the display identifier i that the user terminal 2 reads from the object O. The identification unit 132 refers to the registration information in the storage unit 12, and identifies the content C associated with the display identifier acquired by the acquisition unit 131.

[0036] The transmission unit 133 transmits the content C identified by the identification unit 132 to the user terminal 2. Upon receiving the content C, the user terminal 2 causes the display unit of the user terminal 2 to display the content C in correspondence with the position of the display identifier i of the object O, as shown in FIG. 4(b). As a result, the content C is displayed in AR on the display screen displayed by the display unit of the user terminal 2.

[0037] [Updating NFT ownership following item transfer] When a user who owns an item sells the item to another user on a predetermined buying and selling site and the ownership of the item is transferred, the control unit 13 updates the owner of the NFT corresponding to the item. The process of transferring the owner of the NFT will be described below.

[0038] For example, when a user sells an object they own to another user on a predetermined buying and selling site, transfer information of the object's ownership is stored in a management server 4 that manages the buying and selling of goods on the predetermined buying and selling site. The transfer information includes, for example, a display identifier as object-specific information of the object whose ownership has been transferred, a user ID as user information indicating the user who will have ownership after the transfer, and payment information related to the transfer of the object. The user ID is a user ID assigned to the user on the predetermined buying and selling site. The payment information also includes the selling price of the object, i.e., the transfer price related to the transfer of the object, and the user ID of the user to whom the payment is made, i.e., the user from whom the object is being transferred.

[0039] In response to the transfer information being newly stored, the management server 4 transmits the transfer information of the object to the information processing device 1. The acquisition unit 131 acquires from the management server 4 the transfer information of the ownership of the object, including the display identifier of the object whose ownership has been transferred, the user ID of the user who will have the ownership after the transfer, and payment information related to the transfer of the object.

[0040] When the acquisition unit 131 acquires the transfer information, the update unit 134 refers to the registration information in the storage unit 12 and identifies the NFT associated with the display identifier included in the transfer information. Note that the update unit 134 identified the NFT associated with the display identifier included in the transfer information in the registration information, but this is not limited to this.

[0041] For example, the storage unit 12 may store sales information for an object, corresponding to the sale of a set of the object and an NFT corresponding to the object, received from the object's owner on a predetermined sales site, for example. In this case, the sales information includes, for example, the object's display identifier, the NFT corresponding to the object, and the sales price of the set of the object and the NFT. The sales price also includes the sales price of the object and the sales price of the NFT. The update unit 134 refers to the sales information to identify the NFT associated with the display identifier included in the transfer information.

[0042] The update unit 134 executes an update process to update the owner identification information stored in the blockchain 3 for identifying the owner who owns the identified NFT to user identification information for identifying the user indicated by the user ID included in the transfer information acquired by the acquisition unit 131. Here, the user identification information for identifying the user is, for example, a wallet address assigned to the user in the blockchain 3. The user becomes the owner of the NFT by associating the user's wallet address with the owner identification information of the NFT.

[0043] When performing the update process, the update unit 134 determines whether or not the NFT can be transferred based on the transfer information. For example, the update unit 134 determines whether the transfer price indicated by the payment information included in the transfer information includes a price corresponding to the NFT based on the price of the object and the price of the NFT. For example, the memory unit 12 stores the standard selling price of the object and the standard selling price of the NFT, and the update unit 134 determines that the price corresponding to the NFT is included if the transfer price included in the transfer information is equal to or greater than the sum of the standard selling price of the object and the standard selling price of the NFT stored in the memory unit 12. Note that, when sales information for a set of an object and an NFT is stored in the memory unit 12, the update unit 134 may determine that the price corresponding to the NFT is included on the condition that the sales information includes the sales price of the NFT.

[0044] Furthermore, the update unit 134 determines whether or not to transfer the NFT based on the user ID as user information included in the transfer information. For example, the storage unit 12 stores linkage information that associates a user ID for identifying a user on a predetermined buying and selling site with a wallet address assigned to the user in the blockchain 3. The update unit 134 determines whether or not to transfer the NFT based on the user ID as user information included in the transfer information. Specifically, the update unit 134 references the linkage information and determines whether or not it has been possible to identify the user's wallet address associated with the user ID included in the transfer information.

[0045] The update unit 134 determines that the NFT is transferable if it determines that the transfer price included in the transfer information includes a price corresponding to the NFT and that it has identified the wallet address of the user associated with the user ID included in the transfer information. Note that the update unit 134 may also determine that the NFT token is transferable if it further determines, based on payment information included in the transfer information, that the price corresponding to the NFT has been paid to the user who transferred the object.

[0046] When the update unit 134 determines that the NFT is transferable, it executes an update process to update the owner identification information of the identified NFT stored in the blockchain 3 from an address corresponding to the holder of the NFT before the transfer to the wallet address of the identified user, thereby updating the owner of the NFT to the user. Here, the owner identification information of the NFT before the owner of the NFT is transferred indicates the owner of the object before ownership is transferred, but is not limited to this, and the owner of the object before ownership is transferred and the owner of the NFT indicated by the owner identification information of the NFT may be different.

[0047] In addition, if the update unit 134 cannot identify the wallet address of the user associated with the user ID included in the transfer information, it may generate a wallet and then perform an update process to update the owner identification information of the identified NFT.

[0048] For example, if the linking information does not associate a wallet address with the user ID indicated by the user information included in the transfer information and no wallet address corresponding to the user exists, the update unit 134 may perform a generation process to generate a new wallet address as user identification information corresponding to the user. Then, the update unit 134 may use the generated wallet address to perform an update process to update the owner identification information of the specified NFT in the blockchain 3.

[0049] In addition, if a wallet address is not associated with the user ID indicated by the user information included in the transfer information and a wallet address corresponding to the user does not exist, the update unit 134 may update the owner identification information of the identified NFT in the blockchain 3 using a temporary address corresponding to the user.

[0050] In this case, if there is no wallet address corresponding to the user, the update unit 134 assigns a temporary address to the user and executes an update process to update the owner identification information of the identified NFT in the blockchain 3 to the temporary address. A temporary address is, for example, an address that is temporarily used for a user who has not been assigned a wallet address in advance.

[0051] In addition, the update unit 134 displays a reception screen for accepting a request for issuing a wallet address on the user terminal of the user indicated by the user ID included in the transfer information, and performs a generation process to generate a wallet address for the user in response to accepting the request for issuing a wallet via the reception screen.

[0052] Then, in response to the generation of a wallet address corresponding to the user, the update unit 134 executes an update process that uses the generated address to further update the owner identification information of the identified NFT in the blockchain 3. In this way, if the user does not have an address for associating the NFT with the user, the information processing device 1 can assign the address to the user and associate the NFT with the user.

[0053] When the update process by the update unit 134 is completed, the notification unit 135 notifies the user indicated by the user information included in the transfer information that the owner of the NFT associated with the display identifier included in the transfer information has changed to that user. For example, the management server 4 that manages the buying and selling of objects stores the user's user ID and the user's email address in association with each other, and the notification unit 135 references the management server 4 to identify the user's email address associated with the user ID as user information included in the transfer information. The notification unit 135 sends an email to the identified email address notifying that the owner of the NFT has changed to the user.

[0054] In addition, when the update unit 134 determines that the NFT cannot be transferred, the notification unit 135 notifies the user indicated by the user information included in the transfer information of error information indicating that the NFT cannot be transferred.

[0055] [NFT Owner Update Variations] Note that, in response to the acquisition unit 131 acquiring the transfer information from the management server 4, the update unit 134 executes the update process of updating the owner identification information of the NFT corresponding to the display identifier included in the transfer information, but this is not limited to this. For example, the update process may be executed in response to the new owner of the object reading the display identifier attached to the object using the user terminal 2.

[0056] In this case, the acquisition unit 131 acquires, as transfer information, the user ID of the user to whom the object is to be transferred, and also acquires, from the user terminal 2 that reads the display identifier attached to the object, the display identifier and terminal user information indicating the user of the user terminal 2. The terminal user information is, for example, the user ID or the wallet address assigned to the user.

[0057] The update unit 134 performs an update process when the display identifier and user ID included in the transfer information acquired by the acquisition unit 131 correspond to the display identifier and user ID or wallet address as terminal user information included in the read information acquired from the user terminal 2.

[0058] For example, if the read information includes a user ID, the update unit 134 executes an update process to update the owner identification information of the NFT corresponding to the display identifier included in the transfer information to the wallet address corresponding to the user ID, on the condition that the display identifier and user ID included in the transfer information match the display identifier and user ID included in the read information. Also, if the read information includes the user's wallet address, the update unit 134 executes an update process to update the owner identification information of the NFT corresponding to the display identifier included in the transfer information to the wallet address, on the condition that the wallet address and display identifier corresponding to the user ID included in the transfer information match the wallet address and display identifier included in the read information.

[0059] In the above example, the acquisition unit 131 acquires transfer information related to the transfer of ownership of an object, but this is not limiting. The acquisition unit 131 may acquire NFT transfer information indicating the transfer of ownership of an NFT, including the NFT whose ownership has been transferred and user information indicating the new user of the NFT.

[0060] In this case, for example, there is a payment management server (not shown) that manages payment information for NFTs in a marketplace for buying and selling NFTs corresponding to goods. The NFT payment information includes at least the user ID of the user who purchased the NFT (the transfer destination of the NFT), the user ID of the user who sold the NFT (the transfer source of the NFT), and the NFT itself. The acquisition unit 131 acquires payment information related to NFTs bought and sold in the marketplace from the NFT payment management server as NFT transfer information.

[0061] The control unit 13 may have a generation unit that generates debt information related to the payment of the price of an object corresponding to the NFT indicated by the NFT transfer information. For example, when the acquisition unit 131 acquires NFT transfer information, the generation unit refers to the registration information stored in the storage unit 12, identifies a display identifier associated with the NFT included in the NFT transfer information, and identifies the price of the object corresponding to the display identifier.

[0062] The generation unit then generates debt information relating to the payment of the price of the object by the user indicated by the user information included in the NFT transfer information to the owner of the object corresponding to the display identifier, i.e., the source of the NFT transfer. The debt information includes, for example, the price of the identified object, account information for the user to whom the NFT is being transferred, and account information for the user from whom the NFT is being transferred. The account information for these users can be identified, for example, by referencing the NFT payment management server.

[0063] The notification unit then notifies the generated debt information to the user indicated by the user information included in the NFT transfer information. In this way, the information processing device 1 can have the user to whom the NFT is transferred pay the price of the object in conjunction with the transfer of the NFT.

[0064] The generation unit may transmit the generated debt information to, for example, a payment server (not shown) that performs the payment, thereby causing a payment for the object from the NFT transfer destination to the NFT transfer source based on the debt information. In this way, the information processing device 1 can automatically proceed with the payment for the object in response to the transfer of the NFT.

[0065] [flowchart] Next, a description will be given of the processing flow related to updating the owner of an NFT in association with the transfer of an item in the information processing device 1. Fig. 5 is a flowchart showing the processing flow related to updating the owner of an NFT in association with the transfer of an item in the information processing device 1. First, the acquisition unit 131 acquires from the management server 4 information on the transfer of ownership of an object, including the object-specific information of the object whose ownership has been transferred, the user ID of the user who will have ownership after the transfer, and payment information related to the transfer of the object (S1).

[0066] Next, the update unit 134 refers to the registration information in the storage unit 12 and identifies the NFT associated with the display identifier included in the acquired transfer information (S2). Next, the update unit 134 determines whether the transfer price of the object indicated by the payment information included in the transfer information includes a price corresponding to the NFT (S3). If the update unit 134 determines that the price corresponding to the NFT is included (YES in S3), it proceeds to S4, and if it determines that the price corresponding to the NFT is not included (NO in S3), it proceeds to S8.

[0067] Next, the update unit 134 refers to the link information stored in the storage unit 12 and determines whether or not there is a wallet address corresponding to the user that is associated with the user ID included in the transfer information (S4). If the update unit 134 determines that there is a wallet address corresponding to the user (YES in S4), it proceeds to S6, and if it determines that there is no wallet address corresponding to the user (NO in S4), it proceeds to S5.

[0068] In S5, since there is no wallet address corresponding to the user, the update unit 134 generates a wallet address corresponding to the user. In S6, the update unit 134 updates the owner of the NFT by executing an update process to update the owner identification information of the identified NFT in the blockchain 3 to the wallet address corresponding to the user.

[0069] Next, the notification unit 135 notifies the user indicated by the user information included in the transfer information that the owner of the NFT associated with the display identifier included in the transfer information has been changed to that user (S7).

[0070] In addition, if the price of the NFT is not included in the transfer price of the object in S3, the notification unit 135 notifies the user indicated by the user information included in the transfer information of error information indicating that the NFT cannot be transferred (S8).

[0071] [Effects of information processing device 1] As described above, the information processing device 1 according to the present embodiment acquires object ownership transfer information including object-specific information of the object whose ownership has been transferred and user information indicating the user who will own the object after the transfer, identifies the NFT associated with the object-specific information included in the transfer information, and executes an update process to update owner identification information in the blockchain 3 that identifies the owner who owns the identified NFT to user identification information that identifies the user indicated by the user information. In this way, the information processing device 1 can transfer the ownership of the object and the ownership of the non-fungible token in conjunction with each other.

[0072] Furthermore, this invention will make it possible to contribute to Goal 9 of the United Nations' Sustainable Development Goals (SDGs), which is "Build resilient infrastructure, promote inclusive and sustainable industrialization, and promote innovation and resilience."

[0073] The present invention has been described above using embodiments, but the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, all or part of the device can be configured by functionally or physically distributing or integrating any unit. Furthermore, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiments resulting from the combination also have the effects of the original embodiments. [Explanation of symbols]

[0074] 1. Information processing equipment 2. User terminal 3. Blockchain 11 Communications Department 12 Storage section 13 Control Unit 131 Acquisition Department 132 Specific part 133 Transmitter 134 Update Department 135 Notification Department

Claims

1. a storage unit that stores object-specific information that is unique to an object and a non-fungible token that corresponds to the object in association with each other; an acquisition unit that acquires ownership transfer information including the non-fungible token whose ownership has been transferred and user information indicating a new user of the non-fungible token; a generation unit that, when the acquisition unit acquires the transfer information, identifies object-specific information associated with the non-fungible token included in the transfer information in the storage unit, and generates debt information relating to payment of the price of the object by the user indicated by the user information included in the transfer information to the owner of the object corresponding to the object-specific information; a notification unit that notifies the generated debt information to a user indicated by user information included in the transfer information or to a settlement server that makes a settlement based on the debt information; An information processing device having the above.

2. The acquisition unit acquires the transfer information including user identification information for identifying a transfer source user who is a user before the ownership of the non-fungible token is transferred, The generation unit refers to a server that performs settlement of the non-fungible token, identifies account information of the transfer source user indicated by user identification information of the transfer source user included in the transfer information, and generates the debt information including the identified account information of the transfer source user. The information processing device according to claim 1 .

3. the acquisition unit acquires the transfer information including user identification information for identifying the new user of the non-fungible token; The generation unit refers to a server that performs settlement of the non-fungible token, identifies account information of the new user indicated by the user identification information of the new user included in the transfer information, and generates the debt information including the identified account information of the new user.

3. The information processing device according to claim 1 or 2.

4. The computer executes obtaining ownership transfer information including the non-fungible tokens whose ownership has been transferred and user information indicating a new user of the non-fungible tokens; Upon acquiring the transfer information, a storage unit stores object-specific information specific to an object in association with a non-fungible token corresponding to the object, and identifies the object-specific information associated with the non-fungible token included in the transfer information, and generates debt information relating to payment of the price of the object by the user indicated by the user information included in the transfer information to the owner of the object corresponding to the object-specific information; notifying the generated debt information to a user indicated by user information included in the transfer information or to a settlement server that makes a settlement based on the debt information; An information processing method comprising:

Images