JP7376740B2 - Trading system and trading method - Google Patents

Description

The present invention relates to a trading system and a trading method.

Conventionally, points are given to users who purchase products or use services, the points given to users are managed, and the points held by users are exchanged for products, etc., or financial products such as stocks are used. Point operations are performed based on operation information (for example, see Patent Documents 1, 2, and 3).

Patent No. 6042011 Patent No. 6183942 Patent No. 6357521

In recent years, NFTs (Non-Fungible Tokens), which can prove the uniqueness and ownership of digital assets such as digital art, game items, and trading cards, have been attracting attention. A marketplace (NFT Marketplace) has been established that handles NFTs, and NFTs can be purchased and sold using the NFT Marketplace.

In such an NFT situation, one possible method of using the points given to the user described above is to use the points held by the user to purchase NFTs. However, with the point management techniques described in Patent Documents 1, 2, and 3 mentioned above, it is difficult for users to use points held by users to purchase NFTs. For example, in NFT marketplaces, a specific virtual currency may be used as the payment currency for NFT purchases, or users may have to create their own virtual currency wallets.

The present invention has been made in consideration of such circumstances, and its purpose is to use points given to users to purchase NFTs.

One aspect of the present invention is a point management device that manages points held by a user and consumes the points in response to a point consumption request from the user, and a point management device whose holders are managed on a blockchain. a transaction information providing device that acquires market data regarding the non-fungible token from a market that handles fungible tokens, the market data including information indicating a transaction price of the non-fungible token, and the point management device receives from the transaction information providing device a point management table that stores points held by each user and information specifying transaction price equivalent points, which are points equivalent to the transaction price of the non-fungible token shown in the market data. The point information acquisition unit corresponding to the transaction price to be acquired identifies the points held by the user who requested the purchase of the non-fungible token using the point management table, and from the identified points held by the user who requested the purchase a point management unit that subtracts the points equivalent to the transaction price of the non-fungible token that is the object of the purchase request, and stores the points held as a result of the subtraction in the point management table as the points held by the user who made the purchase request; It is a trading system equipped with .
One aspect of the present invention is the above transaction system, wherein the transaction information providing device notifies the user of points equivalent to the transaction price.
One aspect of the present invention is the above transaction system, wherein the transaction information providing device provides the user with the market data regarding the non-fungible tokens classified by sales category.
In one aspect of the present invention, in the above trading system, the transaction information providing device receives a specification of a sales category from a user, and provides the user with the market data regarding the non-fungible token of the sales category specified by the user. It is a trading system.
One aspect of the present invention is the above transaction system, wherein the sales category is a virtual store or a category to which the non-fungible token belongs.
In one aspect of the present invention, in the above transaction system, the transaction information providing device stores the market data regarding the non-fungible token selected from among the plurality of non-fungible tokens handled by the market according to predetermined sales conditions. It is a trading system that provides users with
In one aspect of the present invention, in the above transaction system, the sales conditions are set based on user attributes for each of the non-fungible tokens handled by the market, and the transaction information providing device includes user attributes for each user. comprising a user registration information storage unit that stores user registration information, the user attribute of the user to whom the market data is provided is specified by the user registration information, and the non-fungible token whose specified user attribute satisfies the sales condition; The trading system selects from among the plurality of non-fungible tokens handled by the market and provides the market data regarding the selected non-fungible token to the destination user.
One aspect of the present invention is the above transaction system, wherein the sales condition is a restriction on the age of sale targets determined for each of the non-fungible tokens handled by the market.
One aspect of the present invention is the above trading system, wherein the sales condition is a recommendation level by age group determined for each of the non-fungible tokens handled by the market.
One aspect of the present invention includes a point management table that stores held points for each user, a point management unit that consumes held points in response to a point consumption request from a user, and a non-profit whose holders are managed on a blockchain. an acquisition unit that acquires market data regarding the non-fungible token from a market that handles fungible tokens, the market data including information indicating a transaction price of the non-fungible token, and the point management unit: The points held by the user who requested the purchase of the non-fungible token are specified by the point management table, and from the identified points held, the non-fungible token targeted for the purchase request specified by the user who made the purchase request is purchased. subtract the points consumed by the point consumption request from the user who made the purchase request based on the transaction price, and store the points held as a result of the subtraction in the point management table as the points held by the user who made the purchase request. , a trading system.
One aspect of the present invention is a trading system as described above, in which a user is notified of transaction price equivalent points, which are points equivalent to the transaction price.
One aspect of the present invention is the above transaction system, wherein the consumption points are points corresponding to the transaction price.

One aspect of the present invention is a point management device that manages points held by a user and consumes the points in response to a point consumption request from the user, and a point management device whose holders are managed on a blockchain. A transaction method in a trading system comprising: a transaction information providing device that acquires market data regarding the non-fungible token from a market that handles fungible tokens, the market data indicating a transaction price of the non-fungible token. The point management device includes a point management table that stores points held by each user, and the point management device stores points corresponding to the transaction price of the non-fungible token indicated in the market data. a transaction price equivalent point information acquisition step of acquiring information specifying transaction price equivalent points from the transaction information providing device; and a transaction price equivalent point information acquisition step in which the point management device collects the points held by the user who requested the purchase of the non-fungible token. Subtract the points equivalent to the transaction price of the non-fungible token that is the target of the purchase request specified by the purchase requesting user from the specified held points using the point management table, and calculate the held points as a result of the subtraction. The transaction method includes a point management step of storing points held by the purchase requesting user in the point management table.
One aspect of the present invention includes a point management table that stores held points for each user, a point management unit that consumes held points in response to a point consumption request from a user, and a non-profit whose holders are managed on a blockchain. A transaction method in a trading system comprising: an acquisition unit that acquires market data regarding the non-fungible token from a market that handles fungible tokens, the market data including information indicating a transaction price of the non-fungible token. The point management unit specifies the points held by the user who requested the purchase of the non-fungible token from the point management table, and from the identified points, the point management unit specifies the purchase request specified by the user who requested the purchase from the identified points. The points consumed by the point consumption request from the user who made the purchase request for the non-fungible token subject to the above are subtracted based on the transaction price, and the points held as a result of the subtraction are calculated as the points held by the user who made the purchase request. This transaction method includes a point management step of storing points in the point management table as follows.

According to the present invention, it is possible to obtain the effect that points given to a user can be used for purchasing NFT.

FIG. 1 is a block diagram showing a configuration example of a transaction system according to an embodiment. FIG. 1 is a block diagram showing a configuration example of a point management device according to an embodiment. It is a figure showing an example of composition of a point management table concerning one embodiment. FIG. 1 is a block diagram illustrating a configuration example of a purchase management device according to an embodiment. FIG. 3 is a diagram illustrating a configuration example of a purchase management table according to an embodiment. FIG. 1 is a block diagram illustrating a configuration example of a transaction information providing device according to an embodiment. FIG. 2 is a diagram illustrating an example of providing NFT market data according to an embodiment. It is a sequence diagram showing an example of a procedure of a transaction method concerning one embodiment. It is a sequence diagram showing an example of a procedure of a transaction method concerning one embodiment. It is a figure which shows the modification of the point management table based on one embodiment. FIG. 1 is a block diagram showing a configuration example of a transaction system according to an embodiment. 1 is a block diagram illustrating a configuration example of a management device according to an embodiment. FIG. It is a sequence diagram showing an example of a procedure of a transaction method concerning one embodiment.

Embodiments of the present invention will be described below with reference to the drawings.

[First embodiment]
FIG. 1 is a block diagram showing a configuration example of a trading system according to a first embodiment. In FIG. 1, a point management device 2 manages points held by users. The user is registered in the point management device 2, and is given user identification information (user ID) for identifying the user. The point management device 2 manages points given to each user when the user purchases a product or uses a service. The point management device 2 sends and receives data to and from a terminal (user terminal) 7 used by a user via a communication line. Further, the point management device 2 transmits and receives data to and from the transaction information providing device 6 via a communication line.

The user uses the user terminal 7 to request the point management device 2 to consume points. The point consumption request is, for example, a request to exchange points held by the user for products or the like. In this embodiment, one of the point consumption requests is a request to purchase NFT (non-fungible token) using points held by the user (NFT purchase request). The user can use the user terminal 7 to request the point management device 2 to purchase NFTs.

The point management device 2 causes points to be consumed in response to a point consumption request from a user. For example, when exchanging points held by a user for a product, the number of consumption points set for the product to be exchanged is subtracted from the remaining number of points held by the user. For example, when purchasing NFT using points held by a user, the number of consumed points converted from the transaction price (price of virtual currency) of the NFT to be purchased is subtracted from the remaining number of points held by the user.

The point management device 2 makes an NFT purchase request to the purchase management device 3 in response to the NFT purchase request from the user.

The purchase management device 3 sends and receives data to and from the point management device 2 via a communication line. Additionally, the purchase management device 3 sends and receives data to and from the NFT market 4 via a communication line. NFT Market 4 is a distribution place (NFT Marketplace) for purchasing and selling NFTs.
In addition, NFT Market 4 enables computers to implement NFT Marketplace functions related to NFTs, such as presenting NFT sales information, accepting NFT purchase requests, processing NFT payments, and managing NFT holder information. It may be realized by a computer (NFT market server) that executes a computer program (NFT market software) for. Therefore, NFT market 4 may refer to an NFT market server.

The holders of NFTs handled by NFT Market 4 are managed on blockchain 5. Blockchain 5 records the history of NFTs handled by NFT Market 4. This blockchain 5 proves the ownership of NFTs handled by the NFT market 4.

The purchase management device 3 executes NFT purchase processing on the NFT market 4 in response to the NFT purchase request from the point management device 2. In the NFT purchase process, the purchase management device 3 requests the NFT market 4 to change the holder of the NFT to be purchased. In response to a request to change the holder of the NFT to be purchased, the NFT market 4 executes a process on the blockchain 5 to change the holder of the NFT to be purchased. As a result, the holder of the NFT to be purchased managed on the blockchain 5 is changed.

The purchase management device 3 acquires data regarding the NFT to be purchased whose owner has been changed on the blockchain 5 from the NFT market 4. The data regarding the NFT to be purchased is data including metadata of the blockchain 5 regarding the NFT to be purchased. The metadata of the blockchain 5 regarding the NFT to be purchased includes information such as an identifier, creation date and time, a holder address indicating the holder, and an object URL regarding the NFT to be purchased. The object URL is a URL (Uniform Resource Locator) that indicates the location of a digital asset (original digital data) that is an object that proves ownership of the NFT to be purchased. There are a variety of digital assets that NFTs prove ownership of, such as digital art, game items, trading cards, digital photographs, digital audio, and digital text.

The purchase management device 3 records data regarding the NFT to be purchased whose owner has been changed on the blockchain 5 outside the blockchain 5.

The purchase management device 3 executes payment processing along with the NFT purchase processing for the NFT market 4 . In the payment processing, the purchase management device 3 executes payment processing for the price corresponding to the transaction price of the NFT to be purchased.

The transaction information providing device 6 sends and receives data to and from the NFT market 4 via a communication line. Further, the transaction information providing device 6 transmits and receives data to and from the point management device 2 via a communication line.

The transaction information providing device 6 acquires market data regarding NFTs (NFT market data) from the NFT market 4 . The NFT market data includes information regarding NFTs handled by the NFT market 4, such as identifiers, object categories, transaction prices (virtual currency prices), and object URLs.

Transaction information providing device 6 sends and receives data to and from user terminal 7 via a communication line. The transaction information providing device 6 provides the NFT market data acquired from the NFT market 4 to the user. The user uses the user terminal 7 to obtain NFT market data from the transaction information providing device 6.

The transaction information providing device 6 converts the NFT transaction price (virtual currency price) included in the NFT market data into points managed by the point management device 2. This conversion rate is set in advance. The transaction information providing device 6 includes transaction price conversion points, which are the converted values of the NFT transaction price (virtual currency price) into points, in the NFT market data provided to the user.

Using the NFT market data, the user can recognize the category of the object (for example, digital art, game item, trading card, etc.), transaction price conversion points, etc. for each NFT sold in the NFT market 4. Therefore, by comparing the remaining number of points that the user owns with the transaction price conversion points of each NFT, the user can request an NFT purchase if the NFT has transaction price conversion points that are less than or equal to the remaining number of points that the user owns. It can be determined that NFT can be carried out. Further, the user can use the user terminal 7 to access the object URL included in the NFT market data and check the NFT object (original digital data).

FIG. 2 is a block diagram showing a configuration example of the point management device according to this embodiment. In FIG. 2, the point management device 2 includes a point management section 21 and a point control section 22. The point management section 21 includes a point management table 23.

Each function of the point management device 2 is realized by the point management device 2 being equipped with computer hardware such as a CPU (Central Processing Unit) and memory, and the CPU executing a computer program stored in the memory. be done. Note that the point management device 2 may be configured using a general-purpose computer device, or may be configured as a dedicated hardware device. For example, the point management device 2 may be configured using a server computer connected to a communication network such as the Internet. Moreover, each function of the point management device 2 may be realized by cloud computing. Moreover, the point management device 2 may be realized by a single computer, or the functions of the point management device 2 may be realized by distributing it to a plurality of computers. Further, the point management device 2 may be configured to open a website using, for example, a WWW system.

The point management unit 21 manages points held by users. The point management unit 21 uses the point management table 23 to manage each user's points.

FIG. 3 is a diagram showing a configuration example of a point management table according to this embodiment. In the example of FIG. 3, for each user, the user ID, the remaining number of points held by the user (held points), and data regarding purchased NFTs (purchased NFT data) are stored in the point management table 23. Purchased NFT data is acquired from the purchase management device 3.

The point control unit 22 performs control regarding points. The point control unit 22 instructs the point management unit 21 to consume points in response to a point consumption request from a user. The point management section 21 causes points to be consumed according to instructions from the point control section 22.

For example, when exchanging points held by a user for a product, the point control unit 22 performs point management such that the number of consumption points set for the product to be exchanged is subtracted from the remaining number of points held by the user. Instruct the department 21. The point management unit 21 subtracts the number of consumed points from the remaining number of points held by the user according to instructions from the point control unit 22.

For example, when purchasing NFT using points held by a user, the point control unit 22 subtracts the number of points consumed, which is the transaction price conversion point of the NFT to be purchased, from the remaining number of points held by the user. Instruct the point management section 21 to do so. The point management unit 21 subtracts the number of consumed points from the remaining number of points held by the user according to instructions from the point control unit 22. The transaction price conversion points of the NFT to be purchased are the converted values (transaction price conversion points) obtained by converting the transaction price (virtual currency price) of the NFT to be purchased by the transaction information providing device 6, and are Retrieved from 6.

The point control unit 22 makes an NFT purchase request to the purchase management device 3 in response to the NFT purchase request from the user.

FIG. 4 is a block diagram showing an example of the configuration of the purchase management device according to this embodiment. In FIG. 4, the purchase management device 3 includes a purchase management section 31 and a purchase control section 32. The purchase management section 31 includes a purchase management table 33.

Each function of the purchase management device 3 is realized by the purchase management device 3 having computer hardware such as a CPU and a memory, and the CPU executing a computer program stored in the memory. Note that the purchase management device 3 may be configured using a general-purpose computer device, or may be configured as a dedicated hardware device. For example, the purchase management device 3 may be configured using a server computer connected to a communication network such as the Internet. Further, each function of the purchase management device 3 may be realized by cloud computing. Furthermore, the purchase management device 3 may be realized by a single computer, or the functions of the purchase management device 3 may be realized by distributing it to a plurality of computers.

The purchase management unit 31 manages NFT purchases. The purchase management unit 31 uses the purchase management table 33 to manage each NFT requested to be purchased from the point management device 2.

FIG. 5 is a diagram showing an example of the configuration of the purchase management table according to the present embodiment. In the example of FIG. 5, for each user, the user ID, purchased NFT data, and the identifier of the purchased NFT holder (NFT holder ID) are stored in the purchase management table 33. Purchased NFT data is acquired from the purchase management device 3. The user ID is the user ID of the user who made the purchase request. The purchased NFT data is purchased NFT data based on a purchase request from the user who made the purchase request. The NFT holder ID is an identifier of the holder of the NFT that has been purchased by the purchase requesting user. Therefore, the NFT holder ID is an identifier of the holder indicated by the holder address included in the purchased NFT data.

In this embodiment, the holder of the purchased NFT is a predetermined purchase manager. The purchase manager is different from the user who made the purchase request. Therefore, the NFT holder ID is the identifier of the purchase manager (purchase manager ID) and is different from the user ID. The purchase manager is, for example, the manager of the point management device 2.

In this embodiment, the reason why the holder of purchased NFTs is made the purchase manager is that, for example, in NFT Market 4, the purchase manager acts as a purchase window and creates a virtual currency wallet for each user. For example, there is no need to create a virtual currency wallet exclusively for users.

The purchase control unit 32 controls the purchase of NFTs. The purchase control unit 32 executes NFT purchase processing on the NFT market 4 in response to an NFT purchase request from the point management device 2 . In the NFT purchase process, the purchase control unit 32 requests the NFT market 4 to change the holder of the NFT to be purchased to a predetermined purchase manager. In this embodiment, the purchase manager is different from the user who made the purchase request.

In response to a request to change the holder of the NFT to be purchased to a purchase manager, the NFT market 4 executes a process on the blockchain 5 to change the holder of the NFT to be purchased to a purchase manager. As a result, the holder of the NFT to be purchased managed on the blockchain 5 is changed to the purchase manager.

The purchase control unit 32 acquires data (purchased NFT data) regarding the NFT to be purchased whose owner has been changed to the purchase manager on the blockchain 5 from the NFT market 4 . The purchase control unit 32 instructs the purchase management unit 31 to record the purchased NFT data acquired from the NFT market 4. The purchase management section 31 stores the purchased NFT data in the purchase management table 33 in accordance with the instruction from the purchase control section 32 in association with the user ID of the purchase request source and the purchase manager ID as the NFT holder ID.

Furthermore, the purchase control unit 32 provides the purchased NFT data acquired from the NFT market 4 to the point management device 2. The point management device 2 stores the purchased NFT data provided from the purchase control unit 32 in the point management table 23 in association with the user ID of the purchase request source.

The purchase control unit 32 executes payment processing in conjunction with the NFT purchase processing for the NFT market 4 . In the payment processing, the purchase control unit 32 executes payment processing for the price corresponding to the transaction price of the NFT to be purchased. In NFT Market 4, a specific virtual currency is used as the settlement currency for NFT purchases. Therefore, the purchase control unit 32 executes the payment process using the virtual currency used in the NFT market 4.

FIG. 6 is a block diagram showing a configuration example of the transaction information providing device according to the present embodiment. In FIG. 6, the transaction information providing device 6 includes a market data acquisition section 61, a point conversion section 62, and an information provision control section 63.

Each function of the transaction information providing device 6 is realized by the transaction information providing device 6 including computer hardware such as a CPU and a memory, and the CPU executing a computer program stored in the memory. Note that the transaction information providing device 6 may be configured using a general-purpose computer device, or may be configured as a dedicated hardware device. For example, the transaction information providing device 6 may be configured using a server computer connected to a communication network such as the Internet. Further, each function of the transaction information providing device 6 may be realized by cloud computing. Further, the transaction information providing device 6 may be realized by a single computer, or the functions of the transaction information providing device 6 may be realized by distributing the functions to a plurality of computers. Further, the transaction information providing device 6 may be configured to open a website using, for example, a WWW system.

The market data acquisition unit 61 acquires NFT market data from the NFT market 4 at a predetermined timing. For example, the market data acquisition unit 61 acquires NFT market data from the NFT market 4 at regular intervals. For example, the market data acquisition unit 61 acquires NFT market data from the NFT market 4 at a predetermined time. For example, the market data acquisition unit 61 acquires NFT market data from the NFT market 4 when a predetermined event occurs. Examples of the event include the registration of a new NFT, the completion of a purchase or sale of an NFT, and a change in the transaction price of an NFT.

The point conversion unit 62 converts the NFT transaction price (virtual currency price) included in the NFT market data into points managed by the point management device 2. This conversion rate is set in advance.

The information provision control unit 63 performs control regarding the provision of NFT market data to users. The information provision control unit 63 transmits the NFT market data to the user terminal 7. The NFT market data sent to the user terminal 7 includes transaction price conversion points, which are the converted values obtained by converting the NFT transaction price (virtual currency price) into points.

FIG. 7 is a diagram showing an example of providing NFT market data according to the present embodiment. In the example in Figure 7, for each NFT (sales NFT) sold in NFT Market 4, the category to which the object of the sales NFT belongs, the identifier of the sales NFT (sales NFT ID), transaction price conversion points, object URL, etc. information is included in the NFT market data and provided to the user. The user uses the user terminal 7 to recognize the information included in the NFT market data.

In the present embodiment, transaction price conversion points, which are the converted value of the NFT transaction price (virtual currency price) converted into points, are provided to the user as NFT market data. Therefore, the user does not need to convert the virtual currency price, which is the NFT transaction price, into points himself. Thereby, the user can easily determine which NFTs can be purchased with the points he/she owns.

Further, in this embodiment, transaction price conversion points are provided from the transaction information providing device 6 to the point management device 2. Therefore, the point management device 2 does not need to convert the virtual currency price, which is the NFT transaction price, into points by itself. Thereby, the point management device 2 can easily compare the points held by the user and the transaction price converted points.

Next, the transaction method according to this embodiment will be explained with reference to FIGS. 8 and 9. 8 and 9 are sequence diagrams showing an example of the procedure of the transaction method according to the present embodiment.

[Transaction information provision stage]
The transaction information provision stage in the transaction method according to this embodiment will be explained with reference to FIG. FIG. 8 shows an example of the procedure of the transaction information provision stage in the transaction method according to the present embodiment.

(Step S11) The transaction information providing device 6 acquires NFT market data from the NFT market 4 at a predetermined timing.

(Step S12) The NFT market data includes the transaction price of NFT expressed in virtual currency. The transaction information providing device 6 converts the NFT transaction price (virtual currency price) included in the NFT market data into points managed by the point management device 2 at a predetermined conversion rate.

(Step S13) The transaction information providing device 6 transmits the NFT market data to the user terminal 7. The NFT market data sent to the user terminal 7 includes transaction price conversion points, which are points of the converted value of the conversion result in step S12. The user terminal 7 receives the NFT market data transmitted from the transaction information providing device 6.

(Step S14) The user terminal 7 displays the NFT market data on the screen. The user recognizes each information of the NFT market data shown in FIG. 7, for example, from the NFT market data displayed on the user terminal 7. By accessing the URL of the desired sales NFT object using the user terminal 7, the user displays and confirms the sales NFT object (for example, original digital data of digital art) on the user terminal 7. can do. Furthermore, the user can determine which NFTs can be purchased with the points that the user owns, based on the transaction price conversion points for each NFT sold included in the NFT market data. Furthermore, in the NFT market data provision example illustrated in FIG. 7, the sales NFTs are classified by category, so the user can easily search for sales NFTs in a desired category.

Note that the user may use the user terminal 7 to request NFT market data from the transaction information providing device 6 by specifying a category. The information provision control unit 63 of the transaction information provision device 6 extracts information on a specified category specified by the user from the NFT market data, and transmits the NFT market data regarding sales NFTs in the specified category to the user terminal 7. Thereby, the user can use the user terminal 7 to recognize NFT market data regarding sales NFTs of the specified category.

Further, as another example of providing NFT market data, virtual stores handling one or more categories may be provided, and sales NFTs may be classified by virtual store. For example, there are virtual stores (art-related NFT shops) that sell art-related NFTs (for example, NFTs of digital art, artist autograph images, artist interview audio, etc.), and idol-related NFTs (for example, idol trading cards, etc.). Examples include virtual stores (idol-related NFT shops) that handle NFTs such as digital photos and digital voices. The user uses the user terminal 7 to specify a virtual store to the transaction information providing device 6 and requests NFT market data. The information provision control unit 63 of the transaction information providing device 6 extracts information on the designated virtual store designated by the user from the NFT market data, and transmits the NFT market data regarding the sales NFTs of the designated virtual store to the user terminal 7. This allows the user to use the user terminal 7 to recognize NFT market data regarding NFTs sold at the designated virtual store.

In this embodiment, categories and virtual stores are examples of NFT sales classifications.

Note that the transaction information providing device 6 may provide the user with NFT market data regarding an NFT selected from a plurality of NFTs handled by the NFT market 4 according to predetermined sales conditions.

As a sales condition, for example, an upper limit of points converted into a transaction price may be set based on the remaining number of points held by the user (remaining number of points). In this case, the information provision control unit 63 of the transaction information provision device 6 acquires the user's remaining points from the point management device 2, and provides NFT market data regarding the sold NFTs whose transaction price conversion points are less than the user's remaining points. It is transmitted to the user terminal 7 of the user.

As other sales conditions, for example, sales conditions based on user attributes may be set. As sales conditions based on user attributes, for example, for each NFT to be sold, there may be a restriction on the age of the sales target, a degree of recommendation by age group, and the like.

[NFT purchase stage]
The NFT purchase stage in the transaction method according to this embodiment will be explained with reference to FIG. FIG. 9 shows an example of the procedure of the NFT purchase stage in the transaction method according to the present embodiment.

(Step S21) The user (purchase requesting user) selects a desired sales NFT (NFT to be purchased) from among the sales NFTs included in the NFT market data provided by the transaction information providing device 6. The purchase requesting user uses the user terminal 7 to request the point management device 2 to purchase the NFT to be purchased. The user terminal 7 transmits NFT purchase request data to the point management device 2 in response to the user's NFT purchase request operation. The NFT purchase request data is data including the user ID of the purchase requesting user and the identifier of the NFT to be purchased (NFT_ID to be purchased). Point management device 2 receives NFT purchase request data transmitted from user terminal 7.

(Step S22) The point management device 2 calculates the transaction price conversion points of the sales NFT (purchase target NFT) corresponding to the purchase target NFT_ID indicated in the NFT purchase request data received from the user terminal 7 and the remaining points of the purchase request source user. (held points) to confirm whether the held points of the purchase requesting user are equal to or greater than the transaction price conversion points. The transaction price conversion points of the sold NFT are acquired from the transaction information providing device 6. As a result of this confirmation, if the points held by the purchase requesting user are less than the points converted to the transaction price of the NFT to be purchased, a response is sent to the user terminal 7 of the purchase requesting user to the effect that the purchase is not possible due to insufficient points. do.

On the other hand, as a result of the confirmation, if the points held by the purchase requesting user are greater than or equal to the transaction price conversion points of the NFT to be purchased, the point management device 2 deducts the transaction price conversion points from the points held by the purchase requesting user. Subtract. This point subtraction result is recorded in the point management table 23.

(Step S23) The point management device 2 transmits NFT purchase request information to the purchase management device 3 when the points held by the purchase requesting user are equal to or greater than the points converted to the transaction price of the NFT to be purchased. The NFT purchase request information includes the NFT_ID to be purchased, the user ID of the purchase requesting user (purchase requesting user ID), and purchase funds payment data. The purchase funds payment data is data indicating that purchase funds corresponding to the transaction price conversion points of the NFT to be purchased have been paid. The purchase funds are transferred by an arbitrary payer (for example, the administrator (point administrator) of the point management device 2) to a predetermined payment destination (for example, a bank account specified by the purchase management device 3) in legal currency. (e.g. Japanese yen). The conversion rate between points and legal currency (for example, Japanese yen) is set in advance. The purchase management device 3 receives the NFT purchase request information transmitted from the point management device 2.

(Step S24) When the purchase management device 3 receives the NFT purchase request information from the point management device 2, it executes NFT purchase and payment processing for the NFT market 4.

In the NFT purchase process, the purchase management device 3 requests the NFT market 4 to change the holder of the NFT to be purchased (NFT_ID to be purchased) to a predetermined purchase manager. In this embodiment, the purchase manager is different from the purchase requesting user, and is, for example, the manager of the point management device 2.

In the payment process, the purchase management device 3 executes the payment process for the price corresponding to the transaction price (virtual currency price) of the NFT to be purchased. Specifically, the purchase management device 3 executes a process of paying a price corresponding to the transaction price (virtual currency price) of the NFT to be purchased from the purchase manager's virtual currency wallet. In NFT Market 4, the purchase manager's virtual currency wallet is created in advance. The purchase management device 3 deposits virtual currency in an amount corresponding to the transaction price (virtual currency price) of the NFT to be purchased into the wallet. The price corresponding to the transaction price (virtual currency price) of the NFT to be purchased is, for example, the transaction price (virtual currency price) of the NFT to be purchased with fees such as transaction fees (virtual currency amount) added. It is the amount of virtual currency. After depositing the amount into the wallet, the purchase management device 3 executes a process of paying the amount from the wallet.

(Step S25) When the NFT purchase and payment processing by the purchase management device 3 is completed, the NFT market 4 uses the blockchain in response to a request to change the holder of the NFT to be purchased (NFT_ID to be purchased) to the purchase manager. 5, a process is executed to change the holder of the NFT to be purchased (NFT_ID to be purchased) to the purchase manager. As a result, the holder of the NFT to be purchased (NFT_ID to be purchased) managed on the blockchain 5 is changed to the purchase manager. After the holder has been changed, an address indicating the purchase manager (purchase manager address) is recorded as the holder address in the metadata of the blockchain 5 regarding the NFT to be purchased. In the NFT market 4, the purchase manager address is registered in advance.

(Step S26) The purchase management device 3 acquires data (purchased NFT data) regarding the NFT to be purchased whose owner has been changed to the purchase manager on the blockchain 5 from the NFT market 4. The purchased NFT data is data including metadata of the blockchain 5 regarding the NFT to be purchased. The purchase manager address is recorded as the holder address in the metadata. Therefore, the purchased NFT data is data that proves that the holder of the NFT to be purchased is the purchase manager.

(Step S27) The purchase management device 3 stores the purchased NFT data acquired from the NFT market 4 in the purchase management table 33 as illustrated in FIG. Therefore, the purchased NFT data is recorded outside the blockchain 5 in association with the purchase request source user ID. Further, the purchased NFT data is associated with the purchase manager ID as the NFT holder ID.

(Step S28) The purchase management device 3 transmits the NFT purchase notification information to the point management device 2. The NFT purchase notification information includes a purchase target NFT_ID, a purchase request source user ID, and purchased NFT data. The point management device 2 receives the NFT purchase notification information transmitted from the purchase management device 3.

(Step S29) Upon receiving the NFT purchase notification information from the purchase management device 3, the point management device 2 records the NFT purchase of the purchase requesting user. In the NFT purchase record of the purchase requesting user, the point management device 2 associates the purchased NFT data included in the NFT purchase notification information with the purchase requesting user ID included in the NFT purchase notification information, as illustrated in FIG. The points are stored in the point management table 23 as shown in FIG. Further, the point management device 2 rewrites the points held by the purchase request source user ID in the point management table 23 with the result of subtracting the points recorded in step S22. As a result, in the point management table 23, the points held by the purchase request source user ID are updated to the result of subtracting the points.

Note that if the purchase of the target NFT in the NFT market 4 fails for some reason, the points held by the purchase request source user ID will not be updated in the point management table 23, and the purchase before point deduction in step S22 will not be updated. The points held by the requesting user ID are maintained as they are.

In this embodiment, consumption of points managed by the point management device 2 is recorded in the point management device 2 (point management table 23), but not recorded on the blockchain 5. Therefore, the fact that the points held by the purchase requesting user were used to purchase the NFT to be purchased is not recorded on the blockchain 5.

(Step S30) The point management device 2 transmits an NFT purchase report to the user terminal 7 of the purchase requesting user. The NFT purchase report is information indicating that the purchase of the NFT to be purchased has been completed, and includes information such as the NFT_ID to be purchased and the URL (purchased NFT data URL) indicating the location of the purchased NFT data in the point management table 23. have The purchase requesting user can use the user terminal 7 to access the purchased NFT data URL and check the purchased NFT data. Further, the purchase requesting user can use the user terminal 7 to access the object URL included in the purchased NFT data and check the object (original digital data) of the NFT to be purchased.

FIG. 10 is a diagram showing a modified example of the point management table according to this embodiment. In this modification, points held by users are managed for each point granter. A point granter is a person who grants points to a user when the user purchases a product or uses a service. In the example of FIG. 10, the points held by each user are stored in the point management table 23 separately for each point granter.

Note that the point management device 2 may limit the point grantor of points that can be used to purchase sales NFTs to the administrator of the point management device 2. In this case, in step S22 of FIG. 13 described above, the point management device 2 determines that the administrator of the point management device 2 is the point granter among the transaction price conversion points of the NFT to be purchased and the points held by the purchase requesting user. Compare the points held (target held points) and check whether the targeted held points are equal to or higher than the transaction price conversion points. If the target held points are less than the transaction price conversion points, the point management device 2 responds to the user terminal 7 of the purchase requesting user that the purchase is not possible due to insufficient points. On the other hand, if the target held points are greater than or equal to the transaction price conversion points, the point management device 2 subtracts the transaction price conversion points from the target held points. The result of this subtraction of the target held points is recorded in the point management table 23. Further, in step S29 of FIG. 13 described above, the point management device 2 records the target held points of the purchase requesting user ID in the point management table 23 as a record of the NFT purchase of the purchase requesting user in step S22. Rewrite to the result of subtracting the target held points.

Further, the point management device 2 may limit the points that can be used to purchase NFTs for sale to the points given to users who have used a service provided by the administrator of the point management device 2. The administrator of the point management device 2 assigns points to users who have used the service provided by the administrator.

As described above, according to the present embodiment, it is possible to obtain the effect that the points given to the user can be used for purchasing NFT.

[Second embodiment]
FIG. 11 is a block diagram showing a configuration example of a trading system according to the second embodiment. In FIG. 11, parts corresponding to those in FIG. 1 are given the same reference numerals, and their explanations will be omitted. In the first embodiment described above, as illustrated in FIG. 1, the point management device 2 and the purchase management device 3 are configured as separate devices. The second embodiment differs from the first embodiment described above in that the point management device 2 and the purchase management device 3 are configured as one management device 8 illustrated in FIG. 11. Hereinafter, differences from the first embodiment will be mainly explained.

FIG. 12 is a block diagram showing a configuration example of a management device according to this embodiment. In FIG. 12, parts corresponding to those in FIGS. 2 and 4 are given the same reference numerals, and their explanations will be omitted. In the management device 8 illustrated in FIG. 12, the control section 81 has the functions of both the point control section 22 of FIG. 2 and the purchase control section 32 of FIG. 4.

FIG. 13 is a sequence diagram illustrating an example of the procedure of the NFT purchase stage in the transaction method according to the present embodiment. In FIG. 13, parts corresponding to each step in FIG. 9 are given the same reference numerals, and their explanation will be omitted. In this embodiment, the transaction information providing step is the same as in the first embodiment shown in FIG. 8 described above.

Steps S21 and S22 are the same as in the first embodiment shown in FIG. 9 described above. However, instead of the point management device 2 in the first embodiment of FIG. 9, the management device 8 executes each process. In this embodiment, after step S22, step S23 in FIG. 9 is omitted, and step S24a is executed.

(Step S24a) If the points held by the purchase requesting user are equal to or greater than the points converted to the transaction price of the NFT to be purchased, the management device 8 executes NFT purchase and payment processing for the NFT market 4. This NFT purchase and payment process is the same as the first embodiment in step S24 of FIG. 9 described above.

After step S24a, steps S25 to S27 are executed. Steps S25 to S27 are the same as in the first embodiment shown in FIG. 9 described above. However, the management device 8 executes each process instead of the purchase management device 3 in the first embodiment shown in FIG. In this embodiment, after step S27, step S28 in FIG. 9 is omitted, and step S29 is executed by the management device 8. In step S29, the management device 8 records the NFT purchase by the purchase requesting user. The process of recording the NFT purchase by the purchase requesting user is the same as in the first embodiment in step S29 of FIG. 9 described above.

After step S29, step S30 is executed. However, the management device 8 executes the process instead of the point management device 2 in the first embodiment shown in FIG.

According to this embodiment, as in the first embodiment described above, it is possible to obtain the effect that points given to the user can be used for purchasing NFT.

Furthermore, as this can improve the overall service quality of systems that utilize points held by users, for example, it is possible to achieve goal 9 of the Sustainable Development Goals (SDGs) led by the United Nations, "Resilient Infrastructure." It will be possible to contribute to the development of infrastructure, promote sustainable industrialization, and expand innovation.

Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like may be made without departing from the gist of the present invention.

Further, a computer program for realizing the functions of each device described above may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed. Note that the "computer system" here may include hardware such as an OS and peripheral devices. Furthermore, the term "computer system" includes the homepage providing environment (or display environment) if a WWW system is used.
Furthermore, "computer-readable recording media" refers to flexible disks, magneto-optical disks, ROMs, writable non-volatile memories such as flash memory, portable media such as DVDs (Digital Versatile Discs), and media built into computer systems. A storage device such as a hard disk.

Furthermore, "computer-readable recording medium" refers to volatile memory (for example, DRAM (Dynamic It also includes those that retain programs for a certain period of time, such as Random Access Memory).
Further, the program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in a transmission medium. Here, the "transmission medium" that transmits the program refers to a medium that has a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
Moreover, the above-mentioned program may be for realizing a part of the above-mentioned functions. Furthermore, it may be a so-called difference file (difference program) that can realize the above-described functions in combination with a program already recorded in the computer system.

2...Point management device, 3...Purchase management device, 4...NFT market, 5...Block chain, 6...Transaction information providing device, 7...User terminal, 8...Management device, 21...Point management unit, 22...Point control unit , 23... Point management table, 31... Purchase management section, 32... Purchase control section, 33... Purchase management table, 61... Market data acquisition section, 62... Point conversion section, 63... Information provision control section, 81... Control section

Claims (14)

A point management device that manages points held by a user and consumes the points in response to a point consumption request from the user;
a transaction information providing device that acquires market data regarding the non-fungible tokens from a market that handles non-fungible tokens whose holders are managed on a blockchain;
The market data includes information indicating a transaction price of the non-fungible token,
The point management device includes:
A point management table that stores points held by each user,
a transaction price equivalent point information acquisition unit that acquires information specifying transaction price equivalent points, which are points equivalent to the transaction price of the non-fungible token indicated in the market data, from the transaction information providing device;
The points held by the user who requested the purchase of the non-fungible token are specified by the point management table, and from the identified points held, the non-fungible token targeted for the purchase request specified by the user who made the purchase request is purchased. a point management unit that subtracts the points corresponding to the transaction price for and stores the points held as a result of the subtraction in the point management table as the points held by the user who made the purchase request;
trading system. The transaction information providing device notifies the user of points equivalent to the transaction price;
The transaction system according to claim 1. The transaction information providing device provides the user with the market data regarding the non-fungible tokens classified by sales category.
The transaction system according to claim 1. The transaction information providing device receives a specification of a sales category from a user, and provides the user with the market data regarding the non-fungible token of the sales category specified by the user.
The transaction system according to claim 3. The sales category is a virtual store or a category to which the non-fungible token belongs;
The transaction system according to claim 3 or 4. The transaction information providing device provides the user with the market data regarding the non-fungible token selected from among the plurality of non-fungible tokens handled by the market according to predetermined sales conditions.
The transaction system according to claim 1. The sales conditions are set based on user attributes for each non-fungible token handled by the market,
The transaction information providing device includes a user registration information storage unit that stores user registration information including user attributes for each user, and specifies the user attributes of the user to whom the market data is provided based on the user registration information, and stores the user registration information including user attributes for each user. Selecting the non-fungible token whose attributes satisfy the sales condition from among the plurality of non-fungible tokens handled by the market, and providing the market data regarding the selected non-fungible token to the destination user. ,
The transaction system according to claim 6. The sales condition is a sales target age limit determined for each non-fungible token handled by the market.
The transaction system according to claim 7. The sales conditions are the age-specific recommendation level determined for each non-fungible token handled by the market;
The transaction system according to claim 7. A point management table that stores points held by each user,
a point management department that consumes held points in response to a point consumption request from a user;
an acquisition unit that acquires market data regarding the non-fungible token from a market that handles non-fungible tokens whose holders are managed on a blockchain;
The market data includes information indicating a transaction price of the non-fungible token,
The point management unit specifies the points held by the user who requested the purchase of the non-fungible token from the point management table, and from the identified points held, the target of the purchase request specified by the user who requested the purchase. The points consumed by the point consumption request from the user who made the purchase request for the non-fungible token are subtracted based on the transaction price, and the points held as a result of the subtraction are set as the points held by the user who made the purchase request. Store in point management table,
trading system. Notifying the user of transaction price equivalent points, which are points equivalent to the transaction price;
The transaction system according to claim 10. The consumption points are points corresponding to the transaction price,
The transaction system according to claim 10. A point management device that manages points held by a user and consumes the points in response to a point consumption request from the user;
A transaction information providing device that acquires market data regarding non-fungible tokens from a market that handles non-fungible tokens whose holders are managed on a blockchain;
A trading method in a trading system comprising:
The market data includes information indicating a transaction price of the non-fungible token,
The point management device includes a point management table that stores points held by each user,
a transaction price equivalent point information acquisition step in which the point management device acquires information specifying transaction price equivalent points, which are points equivalent to the transaction price of the non-fungible token indicated in the market data, from the transaction information providing device; and,
The point management device specifies the points held by the user who requested the purchase of the non-fungible token from the point management table, and from the identified points held, the target of the purchase request specified by the user who requested the purchase. a point management step of subtracting the points equivalent to the transaction price for the non-fungible token, and storing the points held as a result of the subtraction in the point management table as the points held by the user who made the purchase request;
Trading methods including. A point management table that stores points held by each user,
a point management department that consumes held points in response to a point consumption request from a user;
A transaction method in a transaction system comprising: an acquisition unit that acquires market data regarding the non-fungible token from a market that handles non-fungible tokens whose holders are managed on a blockchain,
The market data includes information indicating a transaction price of the non-fungible token,
The point management unit specifies the points held by the user who requested the purchase of the non-fungible token from the point management table, and from the identified points held, the target of the purchase request specified by the user who requested the purchase. The points consumed by the point consumption request from the user who made the purchase request for the non-fungible token are subtracted based on the transaction price, and the points held as a result of the subtraction are set as the points held by the user who made the purchase request. a point management step for storing in a point management table;
Trading methods including.

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