Content service system and content distribution processing method for content service system

Abstract

To stimulate purchasing desire for a content with the extremely limited number of issuance and efficiently develop a profitable content business.SOLUTION: In a content service system, a server device 1 communicates with issuance management servers 2-1 to 2-N. The server device supports electronic-commerce by publishing a digital content transmitted and received between a plurality of data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N operated by content collectors via a predetermined communication medium and any of the data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N on an electronic commerce platform. The issuance management servers manage the issuance of the digital content. When distributing a content issued by a specific influencer authenticated by an authentication unit 16-1 and associated with an NFT, the system features a configuration where an update unit 16-4 updates the auction price to enable trading the content at a high price and publishes it on a content platform 1A.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a content service system in which multiple data terminals operated by stamp collectors communicate with a server device that supports electronic commerce by publishing digital content sent and received between any of the data terminals on an electronic commerce platform via a specified communication medium, and a content distribution processing method for the content service system. [Background technology]

[0002] Conventionally, email systems that can be run on digital devices (data terminals) such as personal computers and smartphones are configured so that, for example, by loading a browser provided by GOOGLE (registered trademark) onto a data terminal and creating an account, users can immediately use the Gmail system to exchange emails with a variety of parties, including individuals, companies, and individuals and companies.

[0003] In addition, even when using a mail server set up by a communication carrier, users who have registered an account can send and receive emails via various email address servers.

[0004] On the other hand, by using the postal delivery system provided by certain institutions, such as Japan Post, if you affix a certain amount of postage to an envelope or postcard, the postcard or envelope can be sent via the postal logistics system to large and medium-sized bases, and ultimately to the address specified by a delivery person. In addition, various systems have recently been put into operation that use NFTs to digitize stamps and paintings and prove that they are unique digital works.

[0005] Paragraph 0025 of the following Patent Document 1 states, "The server device 100 may purchase a selected item from the list of items and execute a leaseback process to lease the item to the user. Item leaseback is a mechanism in which a collector (user) sells an item that is their own asset and leases (rents) the item by paying a monthly fee, allowing them to continue using the item after the sale. By leasing back an item, a collector can obtain funds to purchase a new item without giving up the item. The leaseback process includes transmitting information about the sale price for the item, which is determined based on a captured image of the item, to the user's device. The leaseback process also includes transmitting information about the lease fee for the item, which is determined based on a captured image of the item, to the user's device." This describes linking the item to an NFT, and in the product sales industry that uses NFTs, there has been an increase in the movement to digitize and sell digitized artwork (one-of-a-kind creations). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 7241285 Summary of the Invention [Problem to be solved by the invention]

[0007] However, there are no systems yet in practical use that digitize stamps and letters, link them to NFTs, and connect them to email systems, or that digitize stamps and letters, link them to NFTs, and trade them in virtual currency.

[0008] In other words, stamp collectors would go to the post office, purchase the stamp sheets they wanted, and then store and manage them in a stamp album, but it was unclear to stamp collectors what stamps they had acquired, and no real transactions were possible other than exchanging the stamps they were looking for for stamps they already owned.

[0009] Furthermore, letters are documents exchanged between specific people, and there is no established idea or initiative to make them public or buy and sell them. Therefore, users' desire to link letters as digital resources to NFTs and buy and sell them while still owning the physical documents has not been fulfilled.

[0010] Furthermore, today's virtual currencies are managed by users in wallets for virtual currency payments, such as data terminals, and the reality is that there is no practical system that can fully meet the demand for buying and selling digital resources such as stamps and letters using such virtual currency trading systems.

[0011] Furthermore, the concept of a paper stamp is combined with the concept of a digital stamp, and no email system that utilizes digital stamps has yet been put into practical use. Instead, only text information such as e-mails is exchanged between simple accounts. The reality is that the process of handwriting a letter using a favorite stationery from among several options tailored to the sender, folding the stationery into a favorite envelope, inserting it into the envelope, sealing it, affixing a favorite stamp, and dropping it in the post cannot be reproduced in a digital network environment.

[0012] The present invention has been made to solve the above-mentioned problems, and aims to provide a content service system and a content distribution processing method for the content service system that can create an environment in which content collectors can publish and auction digital content linked to NFTs on a content platform, thereby creating a specific digital content business environment and stimulating purchasing desire for content that is issued in extremely limited quantities, thereby enabling the efficient development of a highly profitable content business. [Means for solving the problem]

[0013] The content service system of the present invention is a content service system in which a plurality of data terminals operated by content collectors, a server device that supports e-commerce by publishing digital content sent and received between any of the data terminals on an e-commerce platform, and an issuance management server that manages the issuance of digital content communicate via a predetermined communication medium, and is characterized in that the server device comprises a content database that stores an NFT linked to the digital content obtained from any of the data terminals in order to publish the digital content on the e-commerce platform, an authentication means that authenticates a person who requests the issuance of the digital content obtained from any of the data terminals, a setting means that sets an auction price for the digital content issued by the issuance requester authenticated by the authentication means, a reception means that accepts a request from any of the data terminals to purchase at a price higher than the auction price set by the setting means, and an update means that updates the auction price set by the setting means based on the price based on the request accepted by the reception means. [Effects of the Invention]

[0014] According to the present invention, it is possible to stimulate purchasing desire for content whose number of issues is extremely limited, and to efficiently develop a highly profitable content business. [Brief explanation of the drawings]

[0015] The drawings illustrate particular embodiments of the present invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 1 is a block diagram illustrating the configuration of a content service system according to an embodiment of the present invention. [Figure 2] 1 is a block diagram illustrating the configuration of a content service system according to an embodiment of the present invention. [Figure 3]FIG. 3 is a block diagram illustrating the configuration of the server device shown in FIG. 2. [Figure 4] 3A is a block diagram illustrating the hardware configuration of the data terminal shown in FIG. 2, and FIG. 3B is a block diagram illustrating the program expanded in the RAM shown in FIG. [Figure 5] FIG. 10 is a diagram showing an example of a digital envelope for airmail that can be used by the server device according to the embodiment. [Figure 6] FIG. 2 is a diagram showing an example of a digital stamp sheet sold by the server device shown in FIG. 1. [Figure 7] FIG. 2 is a diagram showing an example of a digital stamp sheet sold by the server device shown in FIG. 1. [Figure 8] 2 is a diagram showing the text of an airmail message created by a user operating the data terminal shown in FIG. 1; [Figure 9] A diagram showing an example of a digital letter paper library. [Figure 10] 10 is a flowchart showing an example of a content distribution process in the content service system according to the embodiment. [Figure 11] 10 is a flowchart showing an example of a content distribution process in the content service system according to the embodiment. [Figure 12] FIG. 10 is a diagram showing a digital stamp sheet as an example of digital content. [Figure 13] FIG. 10 is a diagram showing a digital stamp sheet as an example of digital content. DETAILED DESCRIPTION OF THE INVENTION

[0016] <Embodiment> Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0017] FIG. 1 is a block diagram illustrating the configuration of a content service system according to this embodiment.

[0018] This example is a content service system in which multiple data terminals operated by content collectors communicate with a server device that supports e-commerce by publishing digital content sent and received between any of the data terminals on an e-commerce platform (content platform 1A) via a specified communication medium, and is characterized in that the server device is configured to publish the content platform 1A on a specific URL. This infrastructure is designed to comply with the WE3 specifications and work with specific APIs to allow service programs to be freely constructed, and can also flexibly respond to system upgrades.

[0019] In this embodiment, the content includes digitized stamps and letters, and digital envelopes and digital letter paper are also included as mail items. Here, the digital stamps, digital letter paper, and digital envelopes are each linked to an NFT issued by a specific blockchain 500, and rights information of the owner, etc. is stored.

[0020] The blockchain 500 described below is configured to be able to build a "P2P (peer-to-peer) network" in which users share data without relying solely on the server device 1, and is assumed to be compatible with WEB3.0, which uses blockchain technology to manage data in a distributed manner.

[0021] In FIG. 1, reference numeral 1 denotes a server device, which operates via a content platform 1A (described later) on a cloud connectable via a network 21. Users who operate data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N as digital content collectors publish content including digitized stamps and digitized letters, providing a service that supports electronic commerce transactions between collectors.

[0022] 500 is a blockchain that links virtual currency transactions used between users to NFTs and stores and manages them, and is also configured to link stamps, letters, envelopes, and writing paper that make up digital content to NFTs and store and manage them using content database 14.

[0023] The server device 1 can individually connect to the blockchain 500 to check the NFTs involved in virtual currency transactions and confirm the owner information. Similarly, the server device 1 is configured to connect to the blockchain 500 and store and manage the transaction history of the virtual currency used by the user.

[0024] In this system, content issuing organizations that provide postal service services in each country are equipped with issuance management servers 2-1 to 2-N that are connected via a communication medium so as to be able to communicate bidirectionally with the server device 1. A good example of a content issuing organization is Japan Post Co., Ltd., a special company under the jurisdiction of the Ministry of Internal Affairs and Communications that handles postal services in Japan. Furthermore, since this system is intended for global expansion, it is desirable that the issuance management servers 2-1 to 2-N be operated by administrative agencies or corporations that handle postal services in each country on a global scale.

[0025] This will enable the development of a global business that auctions digital stamps generated from the world's rarest stamps as content, and the operation of a highly profitable content business. In addition, by building Content Platform 1A as an open platform, it will be extremely easy for postal operators from many countries to participate.

[0026] FIG. 2 is a block diagram for explaining the configuration of a content service system according to this embodiment, and the same components as those in FIG. 1 are assigned the same reference numerals.

[0027] In Figure 2, on the content platform 1A built on the cloud by the server device 1, data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N control the uploading of content via a browser, and a service is provided that allows content auction processing to be settled using virtual currency (e.g., BitCash (registered trademark)).

[0028] In addition, the content platform 1A provides various services as content distribution services to data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N connected via the network 21 by having the CPU 13 execute an air content service program stored in the external memory 18 to publish an air content web screen on a specific URL.

[0029] FIG. 3 is a block diagram for explaining the configuration of the server device 1 shown in FIG. 2, and the same components as those in FIG. 2 are assigned the same reference numerals.

[0030] 3, reference numeral 13 denotes a CPU, which starts an operating system (OS) stored in external memory 18 connected to internal bus 12 and starts various applications installed via API. It also executes the processing of various programs deployed on RAM 16. Reference numeral 11 denotes a communication unit, which is connected to data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N via network 21 so as to be able to communicate with them.

[0031] 15 is a keyboard, which is used to input numbers, text, and icon commands for running applications.

[0032] Reference numeral 16 denotes an expandable RAM, which expands and stores the basic program of the content platform 1A installed in the external memory 18. Reference numeral 17 denotes a display, which displays the program's running status via various UI screens (not shown). The content database 14 stores NFTs linked to digital content.

[0033] RAM 16 includes an authentication unit 16-1 that authenticates a person requesting issuance of digital content obtained from any of data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N, a setting unit 16-2 that sets an auction price for the digital content to be issued by the issuance requester authenticated by authentication unit 16-1, a reception unit 16-3 that receives a request from any of data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N to purchase the digital content at a price higher than the auction price set by setting unit 16-2, and an update unit 16-4 that updates the auction price set by setting unit 16-2 based on the price based on the request received by reception unit 16-3. Here, the issuance requester is assumed to be an influencer.

[0034] Here, influencers include, for example, world-class singers, actors, calligraphers, photographers, chefs, artists, conductors, and musicians (including singers and performers). For example, a musician could request the issuance of commemorative digital content (digital stamps) for each world tour via the issuance management servers 2-1 to 2-N, and then publish the content via the content platform 1A, enabling auctions on a global scale via e-commerce, providing a service in real time 24 hours a day.

[0035] The server device 1 stores, as digital content, envelopes with various airmail decorations in the content database 14.

[0036] The content database 14 also stores management data for managing digitized stamp content and digitized letter content to be reproduced on the content platform 1A made public on the cloud.

[0037] Reference numeral 19 denotes the AI ​​support unit, which works in conjunction with a generation AI system (not shown) and a chat AI system (not shown) connected to the network 21 to execute AI service function processing that supports procedures related to the trading of digital content between users trading digital content.

[0038] FIG. 4 is a block diagram illustrating the hardware configuration of data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N shown in FIG.

[0039] In Fig. 4(a), 301 denotes a CPU, which executes various applications by loading an OS and control programs stored in a ROM 302 into a RAM 303 and executing them. Various information is input and icons displayed on a user interface screen (UI screen) are clicked directly on a display 311. 304 denotes a communication unit, which controls communication for connecting to a token distribution server (not shown) connected to the network 21.

[0040] 4(b), there is provided a purchase unit 303-1 that performs processing to purchase stamp content from the server device 1, and an upload unit 303-4 that uploads digital content including the stamp content and letter content purchased by the purchase unit 303-1 to the server device 1. Reference numeral 310 denotes a keyboard that is used to input text to a display 311 in accordance with the content required by the UI screen.

[0041] Reference numeral 303-2 denotes a UI control unit, which, when connected to the content platform 1A of the server device 1, acquires UI screen data presented by the server device 1 and controls the display content of the digital content displayed on the display 311.

[0042] 303-3 is a payment unit that executes various payment processes associated with the payment of virtual currency when purchasing digital content.

[0043] The upload unit 303-4 executes a process of uploading to the server device 1 the digital contents obtained by encrypting the postage stamp contents and letter contents purchased by the purchase unit 303-1.

[0044] The upload unit 303-4 functions as a download unit when receiving digital content from the data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N after payment in virtual currency.

[0045] Figure 5 is a diagram showing an example of a digital airmail envelope 61 that can be used by the server device 1 of this embodiment, with the upper side showing a state without a digital stamp 62 attached, and the lower side showing a state with a digital stamp 62 attached.

[0046] It should be noted that the digital envelope 61, which is configured as image data, has "VIA AIR MAIL" written on it in advance, indicating that the document is being sent overseas.

[0047] Digital stamps 62 are sheets printed by the issuing authority of each country, although this varies depending on the circumstances of the country. However, this system is configured so that the stamp sheets can be purchased from the server device 1 as digitally processed digital stamps 62 in advance.

[0048] Figures 6 and 7 are diagrams showing examples of digital stamp sheets SS-1 and SS-2 sold by the server device 1 shown in Figure 1. Note that the digital stamp sheets also include digital stamp sheets requested for issuance by influencers shown in Figures 12 and 13, which will be described later.

[0049] FIG. 6 shows an example of a digital stamp sheet SS-1 with a variety of floral designs, and FIG. 7 shows an example of a digital stamp sheet SS-2 showing one type of cut flower.

[0050] In addition, the server device 1 links the digital stamp sheet SS-1 and the digital stamp sheet SS-2 to the NFTs issued by the blockchain 500 and stores them as a list on the content platform 1A.

[0051] FIG. 8 shows the text of an airmail message created by a user operating data terminals 3-1 to 3-N, 4-1 to 4-N, and 5-1 to 5-N shown in FIG. 1, and is actually written on digital letter paper selected from the digital letter paper library shown in FIG. 9.

[0052] In addition, by linking the NFT issued by the blockchain 500 to the letter content, the server device 1 can also trade letter content uploaded to the server device 1 by a specific user (e.g., an influencer) in a content shop made public by the server device 1, where payment is made in virtual currency.

[0053] [Content distribution processing] 10 is a flowchart showing an example of content distribution processing in the content service system according to the present embodiment. Note that (1) to (8) indicate steps, which are realized by the CPU 13 executing a program loaded in the RAM 16.

[0054] The CPU 13 of the server device 1 determines whether the person connected via the network 21 is a user (1), and if it determines that the person is a user, determines whether the pre-registered account (ID and password (PASS)) matches (approval OK) (2), and if it determines that they match, determines whether the request is for the purchase of digital stamps 62 provided by the content platform 1A (3), and if it determines that the request is for a purchase, presents the person with a list of digital stamps 62 available for purchase (5), and proceeds to step (7).

[0055] On the other hand, if the CPU 13 determines in step (3) that the request is not for the purchase of digital stamps 62, it determines whether the connection party is requesting the purchase of a digital letter (4), and if it determines that the connection party is requesting the purchase of a digital letter, it presents the connection party with a list of digital letters available for purchase (6), and proceeds to step (7).

[0056] Then, the CPU 13 waits for the digital stamp 62 or digital letter to be purchased to be selected from the list presented in step (5) or step (6), and if it determines that the digital stamp 62 or digital letter to be purchased has been selected from the list presented in step (5) or step (6), the CPU 13 determines whether payment by virtual currency is OK (8), and if it determines that payment is OK, it terminates the processing.

[0057] The digital stamp 62 or digital letter sent is linked to an NFT via the blockchain 500, and the purchaser can further sell it on a digital art website (not shown).

[0058] 11 is a flowchart showing an example of content distribution processing in the content service system according to the present embodiment. Note that (11) to (16) indicate steps, which are realized by the CPU 13 executing a program loaded in the RAM 16.

[0059] First, the CPU 13 determines whether the authentication of the issuance requester (including the case where the requester has been registered as an influencer in advance) requesting the issuance of a digital stamp 62, who is connected via the content platform 1A from any of the data terminals 3-1 to 3-N, 4-1 to 4-N, 5-1 to 5-N (11), is OK, and if it determines that the authentication is OK, it sets the auction price of the digital content to be issued (12).

[0060] Next, the CPU 13 determines whether an update of the auction price has been received from any of the data terminals 3-1 to 3-N, 4-1 to 4-N, 5-1 to 5-N via the content platform 1A (13), and if it determines that an update of the auction price has been received, the CPU 13 updates the auction price based on the received auction price to the initially set auction price in accordance with predetermined bid conditions (14).

[0061] Next, the CPU 13 receives the auction price along with a purchase request for the digital stamp sheets SS-1 and SS-2 requested by one of the influencers to be issued, and determines whether the auction has been successful (15).

[0062] Next, the CPU 13 notifies the auctioneer that the auction has been completed, and updates the owner information to be written in the NFT tag of either of the issued digital stamp sheets SS-1 or SS-2 on the blockchain 500 (16), thereby completing this process.

[0063] [An example of a digital stamp sheet] 12 and 13 show digital stamp sheets SS-1 and SS-2, which are examples of digital content published on content platform 1A. As shown in Figures 12 and 13, digital stamp sheets SS-1 and SS-2 show examples of artwork that have been created by mapping cuts issued to commemorate a concert tour that an influencer requested be issued, and identification information corresponding to the serial number SN and NFTtag is provided at the bottom of digital stamp sheets SS-1 and SS-2.

[0064] This allows the server device 1 to disclose the content platform 1A via the network 21, and freely develop a service that allows users to send and receive digital letters managed as digital content by purchasing digital stamps 62.

[0065] In addition, the server device 1 can freely develop services that allow digital stamps 62 and digital letters linked to NFTs to be disclosed as digital content on the content platform 1A, and allow users to purchase the digital stamps 62 and digital letters using virtual currency, respectively.

[0066] <Effects of the embodiment> According to this embodiment, a system can be freely constructed that links with NFTs, allowing users to buy and sell digital resources such as rare stamps and letters using virtual currency via the network 21, while keeping their assets such as stamps and letters in their possession.

[0067] The disclosure of the present invention described above can be summarized at least as follows.

[0068] (1) A content service system in which a plurality of data terminals operated by content collectors, a server device that supports electronic commerce by publishing digital content sent and received between any of the data terminals on an electronic commerce platform, and an issuance management server that manages the issuance of digital content communicate via a specified communication medium, wherein the server device is characterized by comprising: a content database that stores an NFT linked to the digital content obtained from any of the data terminals in order to publish the digital content on the electronic commerce platform; an authentication means that authenticates a person who requests the issuance of the digital content obtained from any of the data terminals; a setting means that sets an auction price for the digital content issued by the issuance requester authenticated by the authentication means; a reception means that receives a request from any of the data terminals to purchase at a price higher than the auction price set by the setting means; and an update means that updates the auction price set by the setting means based on the price based on the request received by the reception means.

[0069] (2) The issuance requester is an influencer.

[0070] (3) The number of issues of the digital content is set by the person requesting the issue.

[0071] (4) Any of the data terminals operated by the person requesting the issuance instructs the issuance management server operated by the content issuing organization to reissue the digital content.

[0072] (5) The issuing management server provides the digital content to any of the data terminals as a postal service.

[0073] (6) The digital content includes digital stamps, digital letter paper, and digital envelopes.

[0074] (7) The digital stamps, digital letter paper, and digital envelopes are each linked to an NFT issued by a specific blockchain.

[0075] (8) The issuance management server is characterized in that it is connected to the server device via the communication medium so as to be able to communicate bidirectionally.

[0076] (9) A content distribution processing method for a content service system in which a plurality of data terminals operated by content collectors, a server device that supports electronic commerce by publishing digital content transmitted and received between any of the data terminals on an electronic commerce platform, and an issuance management server that manages the issuance of digital content communicate via a specified communication medium, wherein the server device has a content database that stores and assigns an NFT linked to the digital content obtained from any of the data terminals in order to publish the digital content on the electronic commerce platform, and is characterized by having an authentication step that authenticates a requester to issue the digital content obtained from any of the data terminals, a setting step that sets an auction price for the digital content issued by the issuance requester authenticated in the authentication step, an acceptance step that accepts a request from any of the data terminals to purchase at a price higher than the auction price set in the setting step, and an update step that updates the auction price set in the setting step based on the price based on the request accepted in the acceptance step. [Explanation of symbols]

[0077] 1. Server device 1A Content Platform 3-1~3-N, 4-1~4-N, 5-1~5-N Data terminals 2-1~2-N Issuance management server

Claims

1. A content service system in which a plurality of data terminals operated by content collectors, a server device that supports electronic commerce by publishing digital content transmitted and received between any of the data terminals on an electronic commerce platform, and an issuance management server that manages the issuance of digital content communicate with each other via a predetermined communication medium, The server device a content database that stores the digital content acquired from any of the data terminals and assigns an NFT associated with the digital content in order to publish the digital content on the e-commerce platform; authentication means for authenticating a person who has requested the issuance of the digital content obtained from any one of the data terminals; a setting means for setting an auction price for the digital content issued by the issuing requester authenticated by the authentication means; a receiving means for receiving a purchase request from any of the data terminals at a price higher than the auction price set by the setting means; an updating means for updating the auction price set by the setting means based on the price based on the request received by the receiving means; A content service system comprising:

2. 2. The content service system according to claim 1, wherein the publisher is an influencer.

3. 2. The content service system according to claim 1, wherein the number of issues of said digital content is set by said issue requester.

4. 2. The content service system according to claim 1, wherein one of the data terminals operated by the issuer instructs the issue management server operated by a content issuing organization to reissue the digital content.

5. 2. The content service system according to claim 1, wherein said issue management server provides said digital content to any of said data terminals as a service of postal service.

6. 2. The content service system according to claim 1, wherein the digital content includes digital postage stamps, digital letter paper, and digital envelopes.

7. The content service system according to claim 6, wherein the digital stamps, the digital letter paper, and the digital envelopes are each linked to an NFT issued by a specific blockchain.

8. 2. The content service system according to claim 1, wherein the publication management server is connected to the server device via the communication medium so as to be able to communicate bidirectionally with the server device.

9. A content distribution processing method for a content service system in which a plurality of data terminals operated by content collectors, a server device that supports electronic commerce by publishing digital content transmitted and received between any of the data terminals on an electronic commerce platform, and an issuance management server that manages the issuance of digital content communicate with each other via a predetermined communication medium, comprising: the server device includes a content database that stores the digital content acquired from any of the data terminals and assigns an NFT associated with the digital content in order to publish the digital content on the e-commerce platform; an authentication step of authenticating a person who has requested the issuance of the digital content obtained from any one of the data terminals; a setting step of setting an auction price for the digital content issued by the issuer authenticated in the authentication step; a receiving step of receiving, from any of the data terminals, a request to purchase at a price higher than the auction price set in the setting step; an updating step of updating the auction price set in the setting step based on the price based on the request accepted in the accepting step.

Images