JP2023075576A - Transaction system and transaction method - Google Patents

Abstract

To use points given to a user for purchasing an NFT.SOLUTION: A transaction system includes: a point management apparatus which manages points held by a user and consumes the points in accordance with a point consumption request from the user; and a transaction information providing apparatus which acquires market data on a non-fungible token from a market that handles non-fungible tokens of which owners are managed on a blockchain, and provides the user with the acquired market data. The transaction information providing apparatus converts a transaction price of the non-fungible token included in the market data into points managed by the point management apparatus. The point management apparatus consumes the points converted from the transaction price of the non-fungible token to be purchased, from the points held by the user who has requested the purchase of the non-fungible token, in accordance with a purchase request for the non-fungible token received from the user.SELECTED DRAWING: Figure 1

Description

The present invention relates to trading systems and trading methods.

Conventionally, points are granted to users who purchase products or use services, and the points granted to users are managed, and points owned by users can be exchanged for products, etc., or financial products such as stocks can be purchased. Point management based on operational information is performed (for example, see Patent Documents 1, 2, and 3).

Japanese Patent No. 6042011 Japanese Patent No. 6183942 Japanese 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) that handles the NFT has been established, and it is possible to purchase and sell NFT using the NFT marketplace.

In such an NFT situation, as one method of using the points given to the user as described above, it is conceivable to use the points owned by the user to purchase the NFT. However, with the point management techniques described in Patent Literatures 1, 2, and 3, it is difficult to use points owned by users to purchase NFTs. For example, in the NFT marketplace, a specific virtual currency is used as a settlement currency for NFT purchases, or a user-dedicated virtual currency wallet must be created.

The present invention has been made in consideration of such circumstances, and its object is to use the points given to the user to purchase NFT.

(1) One aspect of the present invention is a point management device that manages the points owned by the user and consumes the points in response to a point consumption request from the user, and the non-substitutability that the holder is managed on the blockchain a transaction information providing device that acquires market data on the non-fungible token from a token-handling market and provides the acquired market data to a user, wherein the transaction information providing device is included in the market data. The transaction price of the non-fungible token is converted into points managed by the point management device, and the point management device purchases the non-fungible token in response to a purchase request for the non-fungible token received from the user. A transaction system that consumes points obtained by converting the transaction price of the non-fungible token that is the object of the purchase request from the points held by the requesting user.
(2) An aspect of the present invention is the transaction system according to (1) above, wherein consumption of points managed by the point management device is not recorded on the blockchain.
(3) An aspect of the present invention further comprises a purchase management device for requesting the market to change the holder of the non-fungible token, wherein the purchase management device is a purchase request target in the point management device. When the user who made the purchase request has points corresponding to the transaction price of the non-fungible token, the holder of the non-fungible token subject to the purchase request is changed to a predetermined purchase manager. to the market, and send data regarding the non-fungible token subject to the purchase request whose owner has been changed to the purchase manager on the blockchain as a user identification that identifies the user who made the purchase request The trading system according to any one of (1) or (2) above, wherein the information is recorded outside the blockchain in association with the information.
(4) In one aspect of the present invention, the non-fungible token subject to the purchase request managed on the blockchain is requested to change the holder of the non-fungible token subject to the purchase request to the market. The transaction system of (3) above, wherein the holder of the fungibility token is changed to the purchase manager.
(5) In one aspect of the present invention, the point management device includes purchase fund payment data indicating that purchase funds equivalent to points corresponding to the transaction price of the non-fungible token subject to the purchase request have been paid. and user identification information for identifying the user who requested the purchase, to the purchase management device.
(6) According to one aspect of the present invention, the purchase management device, in response to notification of the purchase fund payment data and the user identification information, directs the holder of the non-fungible token subject to the purchase request to a predetermined purchase request. The trading system of (5) above, wherein the market is requested to change to the manager.
(7) According to one aspect of the present invention, the purchase management device, along with a request to change the holder of the non-fungible token subject to the purchase request, changes the non-fungible token subject to the purchase request. The transaction system according to any one of (3) to (6) above, which executes settlement processing for a price corresponding to a transaction price.
(8) In one aspect of the present invention, the purchase management device stores data regarding the non-fungible token subject to the purchase request whose owner has been changed to the purchase manager on the blockchain to the purchase management device. The transaction system according to any one of (3) to (7) above, which is associated with purchase manager identification information that identifies a person.
(9) An aspect of the present invention is the transaction system according to any one of (3) to (8) above, wherein the purchase manager is different from the user who requested the purchase.
(10) An aspect of the present invention is the transaction system according to (9) above, wherein the purchase manager is a manager of the point management device.
(11) According to one aspect of the present invention, the transaction information providing device provides the user with the market data related to the non-fungible token selected from among the plurality of non-fungible tokens handled by the market according to predetermined sales conditions. The trading system according to any one of (1) to (10) above.
(12) According to one aspect of the present invention, the transaction information providing device allocates the plurality of non-fungible tokens handled by the market to predetermined sales divisions, and distributes the non-fungible tokens corresponding to the sales division specified by the user. 12. The trading system according to any one of the above (1) to (11), which provides the user with the market data on the sex token.
(13) In one aspect of the present invention, the point management device manages the points owned by the user for each point grantor, and the point grantor of the points usable for purchasing the non-fungibility token is the point The transaction system according to any one of (1) to (12) above, which is a manager of a management device.
(14) One aspect of the present invention is the above (13 ) trading system.

(15) One aspect of the present invention is a point management device that manages the points owned by the user and consumes the points in response to a point consumption request from the user, and the non-substitutability that the holder is managed on the blockchain A trading method in a trading system comprising: a trading information providing device that acquires market data related to the non-fungible token from a token-handling market and provides the acquired market data to a user, wherein the trading information providing device converting the transaction price of the non-fungible token included in the market data into points managed by the point management device; a step of consuming the points obtained by converting the transaction price of the non-fungible token subject to the purchase request from the points held by the user who requested the purchase of the non-fungible token accordingly. .

ADVANTAGE OF THE INVENTION According to this invention, the effect that the point given to the user can be utilized for the purchase of NFT is acquired.

It is a block diagram showing an example of composition of a transaction system concerning one embodiment. 1 is a block diagram showing a configuration example of a point management device according to one embodiment; FIG. It is a figure which shows the structural example of the point management table which concerns on one Embodiment. 1 is a block diagram showing a configuration example of a purchase management device according to one embodiment; FIG. It is a figure which shows the structural example of the purchase management table which concerns on one Embodiment. It is a block diagram which shows the structural example of the transaction information provision apparatus which concerns on one Embodiment. FIG. 11 illustrates an example of providing NFT market data according to one embodiment; It is a sequence diagram showing an example of the procedure of the transaction method according to one embodiment. It is a sequence diagram showing an example of the procedure of the transaction method according to one embodiment. It is a figure which shows the modification of the point management table which concerns on one Embodiment. It is a block diagram showing an example of composition of a transaction system concerning one embodiment. It is a block diagram which shows the structural example of the management apparatus which concerns on one Embodiment. It is a sequence diagram showing an example of the procedure of the transaction method according to one embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First embodiment]
FIG. 1 is a block diagram showing a configuration example of a trading system according to the first embodiment. In FIG. 1, the point management device 2 manages the points owned by the user. The user is registered in the point management device 2 and assigned user identification information (user ID) for identifying the user. The point management device 2 manages, for each user, points given when the user purchases a product or uses a service. The point management device 2 transmits and receives data to and from a terminal (user terminal) 7 used by a user via a communication line. Also, 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 make a point consumption request to the point management device 2 . The point consumption request is, for example, a request to exchange the points owned by the user for goods or the like. In the present embodiment, as one of the point consumption requests, a request (NFT purchase request) to purchase an NFT (non-fungible token) using the points owned by the user is provided. The user can use the user terminal 7 to make an NFT purchase request to the point management device 2 .

The point management device 2 consumes points in response to a point consumption request from a user. For example, when the points owned by the user are exchanged for a product, the number of consumption points set for the product to be exchanged is subtracted from the remaining number of points owned by the user. For example, when purchasing an NFT using points owned by a user, the number of points consumed converted from the transaction price (virtual currency price) of the NFT to be purchased is subtracted from the remaining number of points owned 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 transmits and receives data to and from the point management device 2 via a communication line. Also, the purchase management device 3 transmits and receives data to and from the NFT market 4 via a communication line. The NFT market 4 is a distribution place (NFT marketplace) for purchase and sale of NFTs.
In addition, the NFT market 4 makes the computer realize the functions of the NFT marketplace such as presentation of NFT sales information, reception of NFT purchase requests, payment processing of NFT charges, management of NFT holder information, etc. may be realized by a computer (NFT Market server) executing a computer program (NFT Market software) for Accordingly, NFT Market 4 may refer to an NFT Market server.

Holders of NFTs handled by the NFT market 4 are managed on the blockchain 5. Blockchain 5 records the history of NFTs handled by NFT market 4. This blockchain 5 proves the holder of the NFT handled by the NFT market 4.

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

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

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

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

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

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

Transaction information providing device 6 transmits and receives data to and from user terminal 7 via a communication line. The transaction information providing device 6 provides users with NFT market data acquired from the NFT market 4 . The user uses the user terminal 7 to acquire 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 preset. The transaction information providing device 6 includes, in the NFT market data provided to the user, transaction price conversion points, which are conversion values of the NFT transaction price (virtual currency price) converted into points.

The user can recognize the category of the object (for example, digital art, game items, trading cards, etc.) and transaction price conversion points for each NFT sold in the NFT market 4 by the NFT market data. Therefore, by comparing the balance of the points owned by the user with the transaction price conversion points of each NFT, the NFT that is the transaction price conversion point less than the balance of the points owned by the user can make an NFT purchase request. It can be determined that it is an NFT that can be performed. In addition, the user can use the user terminal 7 to access the object URL included in the NFT market data and confirm 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 unit 21 has a point management table 23 .

Each function of the point management device 2 is realized by the point management device 2 having 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. Also, each function of the point management device 2 may be realized by cloud computing. Also, the point management device 2 may be implemented by a single computer, or may be implemented by distributing the functions of the point management device 2 to a plurality of computers. Also, the point management device 2 may be configured to open a website using, for example, the WWW system.

The point management unit 21 manages the points owned by the user. The point management unit 21 uses the point management table 23 to manage the points of each user.

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

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

For example, when the points owned by the user are exchanged for a product, the point control unit 22 performs point management so that the number of consumption points set for the product to be exchanged is subtracted from the remaining number of points owned by the user. instruct the unit 21. In accordance with the instruction from the point control unit 22, the point management unit 21 subtracts the number of consumed points from the remaining number of points owned by the user.

For example, when purchasing an NFT using points owned by the user, the point control unit 22 reduces the number of points consumed, which is the transaction price conversion points of the NFT to be purchased, from the remaining number of points owned by the user. , the point management unit 21 is instructed. In accordance with the instruction from the point control unit 22, the point management unit 21 subtracts the number of consumed points from the remaining number of points owned by the user. The transaction price conversion point of the NFT to be purchased is a converted value (transaction price conversion point) resulting from conversion from the transaction price (virtual currency price) of the NFT to be purchased by the transaction information providing device 6. 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 a configuration example of a 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 has 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 memory, and the CPU executing a computer program stored in the memory. 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. Moreover, the purchase management apparatus 3 may be realized by a single computer, or may be realized by distributing the functions of the purchase management apparatus 3 to a plurality of computers.

The purchase management unit 31 manages the purchase of NFTs. The purchase management unit 31 uses the purchase management table 33 to manage each NFT requested for purchase by the point management device 2 .

FIG. 5 is a diagram showing a configuration example of a purchase management table according to this embodiment. In the example of FIG. 5, the purchase management table 33 stores the user ID, the purchased NFT data, and the identifier of the holder of the purchased NFT (NFT holder ID) for each user. 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 the purchased NFT data according to the purchase request of the user who requested the purchase. The NFT holder ID is the identifier of the holder of the NFT that has been purchased by the purchase request of the user who made the purchase request. Therefore, the NFT holder ID is the 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 the predetermined purchase manager. The purchase manager is different from the user who requested the purchase. 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 the purchased NFT is made the purchase manager is, for example, in the NFT market 4, the purchase manager collectively creates a virtual currency wallet as a purchase window, so that each user For example, there is no need to create a user-dedicated virtual currency wallet.

The purchase control unit 32 controls the purchase of NFTs. The purchase control unit 32 executes NFT purchase processing for the NFT market 4 in response to the 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 owner 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 the request to change the holder of the NFT to be purchased to the purchase manager, the NFT market 4 executes processing for changing the holder of the NFT to be purchased to the purchase manager to the blockchain 5 . As a result, the owner of the purchase target NFT managed on the blockchain 5 is changed to the purchase manager.

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

The purchase control unit 32 also 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 requester.

The purchase control unit 32 executes payment processing along with the NFT purchase processing for the NFT market 4 . The purchase control unit 32 executes payment processing for the payment corresponding to the transaction price of the NFT to be purchased in the payment processing. In NFT Market 4, a specific virtual currency is used as a settlement currency for NFT purchases. Therefore, the purchase control unit 32 executes payment processing with 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 this 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 having computer hardware such as a CPU and memory, and the CPU executing a computer program stored in the memory. 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, transaction information providing device 6 may be configured using a server computer connected to a communication network such as the Internet. Also, each function of the transaction information providing device 6 may be implemented by cloud computing. Moreover, the transaction information providing device 6 may be implemented by a single computer, or may be implemented by distributing the functions of the transaction information providing device 6 to a plurality of computers. Further, the transaction information providing device 6 may be configured to open a website using, for example, the 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 events include the registration of a new NFT, the establishment of a transaction of an NFT, and the 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 preset.

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

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

In this embodiment, as NFT market data, users are provided with transaction price conversion points, which are conversion values obtained by converting NFT transaction prices (virtual currency prices) into points. Therefore, the user does not need to convert the virtual currency price, which is the transaction price of NFT, into points by himself/herself. Thereby, the user can easily determine the sales NFT that can be purchased with the points owned by the user.

Further, in the present 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. As a result, the point management device 2 can easily compare the points owned by the user and the transaction price conversion points.

Next, a transaction method according to this embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 and 9 are sequence diagrams showing examples of procedures of the transaction method according to this embodiment.

[Transaction information provision stage]
The step of providing transaction information in the transaction method according to this embodiment will be described with reference to FIG. FIG. 8 shows an example of the procedure of the transaction information providing stage in the transaction method according to this 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 NFT transaction prices 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 S<b>13 ) The transaction information providing device 6 transmits the NFT market data to the user terminal 7 . The NFT market data transmitted to the user terminal 7 includes a transaction price conversion point, which is a conversion value point of the conversion result of 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 piece of information of the NFT market data shown in FIG. 7, for example, from the NFT market data displayed on the user terminal 7 . The user uses the user terminal 7 to access the target URL of the desired sales NFT, thereby displaying the target of the sales NFT (for example, original digital data of digital art) on the screen of the user terminal 7 for confirmation. can do. In addition, the user can determine the sales NFT that can be purchased with the points owned by the user based on the transaction price conversion points of each sales NFT included in the NFT market data. In addition, in the example of providing NFT market data illustrated in FIG. 7, the sales NFTs are classified by category, so the user can easily search for sales NFTs in a desired category.

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 providing device 6 extracts the information of the designated category designated by the user from the NFT market data, and transmits the NFT market data regarding the sales NFT of the designated category to the user terminal 7 . Thereby, the user can use the user terminal 7 to recognize the NFT market data regarding the sales NFT of the specified category.

As another example of providing NFT market data, a virtual store that handles one or more categories may be provided, and sales NFTs may be classified by virtual store. For example, a virtual store (art-related NFT shop) that handles art-related sales NFTs (e.g., NFTs such as digital art, artist signature images, artist interview audio, etc.), idol-related sales NFTs (e.g., idol trading card and virtual stores (idol-related NFT shops) that handle NFTs such as digital photos and digital voices. The user uses the user terminal 7 to request NFT market data from the transaction information providing device 6 by designating the virtual shop. The information provision control unit 63 of the transaction information providing device 6 extracts the information of the designated virtual shop designated by the user from the NFT market data, and transmits the NFT market data regarding the sales NFT of the designated virtual shop to the user terminal 7 . Thereby, the user can use the user terminal 7 to recognize the NFT market data related to the sales NFT of the designated virtual store.

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

In addition, the transaction information providing device 6 may provide the user with NFT market data related to 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 transaction price conversion points may be set based on the number of remaining points held by the user (point balance). In this case, the information provision control unit 63 of the transaction information providing device 6 acquires the user's point balance from the point management device 2, and obtains the NFT market data related to the sales NFT, which is the transaction price conversion point below the user's point balance. 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. Sales conditions based on user attributes include, for example, age restrictions for sales and recommendations by age for each sales NFT.

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

(Step S21) The user (purchase requesting user) selects a desired sales NFT (purchase target NFT) from the sales NFTs included in the NFT market data provided from the transaction information providing device 6. The purchase request source 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 request source user and the identifier of the purchase target NFT (purchase target NFT_ID). The point management device 2 receives the NFT purchase request data transmitted from the user terminal 7 .

(Step S22) The point management device 2 converts 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 point balance of the purchase request source user (Possessed points), and confirms whether the points held by the purchase requesting user are equal to or greater than the transaction price conversion points. Transaction price conversion points for sales NFT are obtained from the transaction information providing device 6 . As a result of the confirmation, if the points owned by the purchase requesting user are less than the transaction price conversion points of the NFT to be purchased, a response to the effect that the purchase is not possible due to lack of points is sent to the user terminal 7 of the purchase requesting user. do.

On the other hand, as a result of the confirmation, if the points owned by the purchase requesting user are equal to or greater than the transaction price conversion points of the NFT to be purchased, the point management device 2 converts the transaction price conversion points from the points owned 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 transaction price conversion points of the NFT to be purchased. The NFT purchase request information includes a purchase target NFT_ID, a purchase request source user ID (purchase request source user ID), and purchase fund payment data. The purchase fund payment data is data indicating that the purchase fund corresponding to the transaction price conversion points of the NFT to be purchased has been paid. An arbitrary payer (for example, the manager of the point management device 2 (point manager)) transfers the purchase funds to a predetermined payment destination (for example, a bank account designated by the purchase management device 3) in legal currency. (e.g. Japanese Yen). A 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 S<b>24 ) When the purchase management device 3 receives the NFT purchase request information from the point management device 2 , the purchase management device 3 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 owner of the purchase target NFT (purchase target NFT_ID) to a predetermined purchase manager. In this embodiment, the purchase manager is a person different from the purchase requesting user, and is, for example, the manager of the point management device 2 .

In the price 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 virtual currency wallet of the purchase manager. In NFT Market 4, the purchase manager's virtual currency wallet is created in advance. The purchase management device 3 deposits the virtual currency 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 plus a commission such as a transaction fee (virtual currency amount). It is the amount of virtual currency. After depositing the price into the wallet, the purchase management device 3 executes the process of paying the price from the wallet.

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

(Step S<b>26 ) The purchase management device 3 acquires from the NFT market 4 data (purchased NFT data) related to the purchase target NFT whose owner has been changed to the purchase manager on the blockchain 5 . 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 owner address in the metadata. Therefore, the purchased NFT data is data that proves that the owner 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 requester user ID. Also, the purchased NFT data is associated with the purchase manager ID as the NFT holder ID.

(Step S<b>28 ) The purchase management device 3 transmits NFT purchase notification information to the point management device 2 . The NFT purchase notification information has purchase target NFT_ID, 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) When the point management device 2 receives the NFT purchase notification information from the purchase management device 3, it 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. is stored in the point management table 23 as follows. Further, the point management device 2 rewrites the points possessed by the purchase requester user ID in the point management table 23 with the subtraction result of the points recorded in step S22. As a result, in the point management table 23, the points possessed by the purchase requester user ID are updated to the subtraction result of the points.

Note that if the purchase of the NFT to be purchased in the NFT market 4 fails for some reason, the points owned by the purchase requesting user ID are not updated in the point management table 23, and the purchase before the point subtraction in step S22 is performed. The points owned 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. FIG. Therefore, it is not recorded on the blockchain 5 that the points owned by the purchase requesting user have been used to purchase the NFT to be purchased.

(Step S30) The point management device 2 transmits an NFT purchase report to the user terminal 7 of the purchase request source 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 indicating the location of the purchased NFT data in the point management table 23 (purchased NFT data URL). have. The purchase request source user can use the user terminal 7 to access the purchased NFT data URL and confirm the purchased NFT data. In addition, the purchase request source user can use the user terminal 7 to access the target object URL included in the purchased NFT data and confirm the target object (original digital data) of the NFT to be purchased.

FIG. 10 is a diagram showing a modification of the point management table according to this embodiment. In this modification, the points owned by the user are managed for each point grantor. 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 possessed by each user are stored in the point management table 23 separately for each point grantor.

Note that the point management device 2 may limit the point granter of the points that can be used for purchasing the sales NFT 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 transaction price conversion points of the NFT to be purchased and the points owned by the purchase requesting user are given by the administrator of the point management device 2. It compares with the holding points (target holding points) and confirms whether the target holding points are equal to or more than the relevant transaction price conversion points. When the target possessed 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 lack of points. On the other hand, the point management device 2 subtracts the transaction price conversion points from the target holding points when the target holding points are equal to or more than the transaction price conversion points. The subtraction result of the target possessed points is recorded in the point management table 23 . In step S29 of FIG. 13 described above, the point management device 2 records the target owned 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 subtraction result of the target holding points.

In addition, the point management device 2 may limit the points that can be used for purchasing sales NFTs to points given to users who have used services provided by the administrator of the point management device 2 . The administrator of the point management device 2 designates the users who have used the service provided by the administrator as the users to which the administrator gives points.

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 to purchase 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 denoted by the same reference numerals, and descriptions thereof are 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 above-described first embodiment in that the point management device 2 and the purchase management device 3 are configured as one management device 8 illustrated in FIG. Differences from the first embodiment will be mainly described below.

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 denoted by the same reference numerals, and descriptions thereof are omitted. In the management device 8 illustrated in FIG. 12, the control unit 81 has the functions of both the point control unit 22 in FIG. 2 and the purchase control unit 32 in FIG.

FIG. 13 is a sequence diagram showing an example of procedures in the NFT purchase stage in the transaction method according to this embodiment. In FIG. 13, the same reference numerals are given to the parts corresponding to the steps in FIG. 9, and the description thereof will be omitted. In this embodiment, the step of providing transaction information is the same as the first embodiment of 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 shown in FIG. 9, the management device 8 executes each process. In this embodiment, after step S22, step S23 of FIG. 9 is omitted and step S24a is executed.

(Step S24a) The management device 8 executes NFT purchase and payment processing for the NFT market 4 when the points held by the purchase requesting user are equal to or greater than the transaction price conversion points of the NFT to be purchased. The processing of this NFT purchase and payment is the same as that of 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, instead of the purchase management device 3 in the first embodiment shown in FIG. 9, the management device 8 executes each process. In this embodiment, after step S27, step S28 in FIG. 9 is omitted, and step S29 is executed by the management device 8. FIG. In step S29, the management device 8 records the NFT purchase of the purchase requesting user. The process of recording the NFT purchase by the purchase requesting user is the same as that of 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 processing instead of the point management device 2 in the first embodiment of FIG.

According to the present embodiment, similar to the above-described first embodiment, the effect is obtained that the points given to the user can be used to purchase NFT.

As a result, for example, it is possible to improve the overall service quality in a system that utilizes points held by users. , promote sustainable industrialization, and contribute to the expansion of innovation.

Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and design changes and the like are also included within the scope of the present invention.

Alternatively, a computer program for realizing the functions of the devices described above may be recorded in a computer-readable recording medium, and the program recorded in the recording medium may be read and executed by the computer system. Note that the “computer system” referred to here may include hardware such as an OS and peripheral devices. The "computer system" also includes the home page providing environment (or display environment) if the WWW system is used.
In addition, "computer-readable recording medium" includes writable nonvolatile memories such as flexible discs, magneto-optical discs, ROMs and flash memories, portable media such as DVDs (Digital Versatile Discs), and computer system built-in media. A storage device such as a hard disk that

Furthermore, "computer-readable recording medium" means a volatile memory (e.g., DRAM (Dynamic Random Access Memory)), which holds the program for a certain period of time, is also included.
Further, the above program may be transmitted from a computer system storing this 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" for transmitting the program refers to a medium having 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.
Further, the program may be for realizing part of the functions described above. Further, 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.

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

Claims (15)

a point management device that manages the points owned by the user and causes the points to be consumed in response to a point consumption request from the user;
a transaction information providing device that acquires market data related to the non-fungible tokens from a market that deals with non-fungible tokens whose holders are managed on a blockchain and provides the acquired market data to users;
The transaction information providing device converts the transaction price of the non-fungible token included in the market data into points managed by the point management device,
In response to a purchase request for the non-fungible token received from the user, the point management device converts the points owned by the user who requested the purchase of the non-fungible token to the non-fungible token for which the purchase request is made. Consume the points converted from the transaction price,
trading system. Consumption of points managed by the point management device is not recorded on the blockchain,
Trading system according to claim 1. further comprising a purchase management device that requests the market to change the holder of the non-fungible token;
The purchase management device
When the user who made the purchase request has points corresponding to the transaction price of the non-fungible token that is the target of the purchase request in the point management device, requesting the market to change the holder to a prescribed purchase manager;
data relating to the non-fungible token subject to the purchase request whose owner has been changed to the purchase manager on the blockchain, is associated with user identification information that identifies the user who made the purchase request, and is stored on the blockchain; record externally,
A trading system according to claim 1 or 2. A request to change the holder of the non-fungible token subject to the purchase request to the market causes the holder of the non-fungible token subject to the purchase request managed on the blockchain to change the purchase management be changed to
Trading system according to claim 3. The point management device identifies purchase fund payment data indicating that purchase funds equivalent to points corresponding to the transaction price of the non-fungible token subject to the purchase request have been paid, and the user who made the purchase request. and notifying the purchase management device of the user identification information to be used.
Trading system according to claim 3 or 4. The purchase management device, in response to the notification of the purchase fund payment data and the user identification information, directs the market to change the holder of the non-fungible token subject to the purchase request to a predetermined purchase manager. request,
Trading system according to claim 5. The purchase management device
executing payment processing for the price corresponding to the transaction price of the non-fungible token subject to the purchase request in accordance with the request to change the holder of the non-fungible token subject to the purchase request;
Trading system according to any one of claims 3 to 6. The purchase management device converts data related to the non-fungible token subject to the purchase request whose owner has been changed to the purchase manager on the blockchain into purchase manager identification information that identifies the purchase manager. associate,
Trading system according to any one of claims 3 to 7. The purchase manager is different from the user who requested the purchase,
Trading system according to any one of claims 3 to 8. The purchase manager is a manager of the point management device,
Trading system according to claim 9. The transaction information providing device provides the user with the market data related to the non-fungible token selected from among the plurality of non-fungible tokens handled by the market according to predetermined sales conditions,
Trading system according to any one of claims 1 to 10. The transaction information providing device distributes the plurality of non-fungible tokens handled by the market to a predetermined sales category, and provides the user with the market data on the non-fungible token corresponding to the sales category specified by the user. do,
Trading system according to any one of claims 1 to 11. The point management device is
Manage points owned by users for each point grantor,
A point granter of points that can be used to purchase the non-fungible token is an administrator of the point management device,
A trading system according to any one of claims 1-12. The points that can be used to purchase the non-fungibility token are points given to users who have used services provided by the administrator of the point management device.
Trading system according to claim 13. a point management device that manages the points owned by the user and causes the points to be consumed in response to a point consumption request from the user;
a transaction information providing device that acquires market data on the non-fungible token from a market that deals with non-fungible tokens managed by holders on a blockchain and provides the acquired market data to a user;
A trading method in a trading system comprising
a step in which the transaction information providing device converts the transaction price of the non-fungible token included in the market data into points managed by the point management device;
In response to a purchase request for the non-fungible token received from the user, the point management device converts the points owned by the user who requested the purchase of the non-fungible token to the non-fungible token for which the purchase request is made. a step of consuming points converted from the transaction price;
Trading methods including;

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