Crypto-asset linkage card management system and operation method thereof

Abstract

To provide a card capable of delivering a token purchased at a system operation cost at an initial purchase amount when a user member desires, and adding an advertisement.SOLUTION: A virtual asset linkage card management system according to the present invention is a card management system in which a card management server presents a card linked with a token to a user member so that the user member can select and occupy the card, and when the user member desires to purchase the card to be occupied at a desired time, the card management server delivers the token linked to the card at an initial purchase amount, wherein the card is issued with information proving the purchase of the token purchased at an arbitrary time by a system operation cost, the card image includes an advertisement display surface, an advertisement is displayed on the specific card and an accessory service provided by an advertiser is associated with the specific card, and when the user member desires to purchase the specific card occupied by the user member, the associated accessory service is provided in addition to the token associated with the specific card with the purchase.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cryptocurrency-linked card management system and an operation method thereof, and in particular to a cryptocurrency-linked card management system and an operation method thereof that allows a user member to transfer tokens, which are cryptocurrency purchased at any time and for any amount using system operating costs including membership fees of the user member, at a time desired by the user member for the purchase price at the time of initial purchase, and provides them as a card to which any advertisement can be added. [Background technology]

[0002] Unlike legal tender, cryptocurrencies do not have administrators depending on the type, so their value fluctuates more dramatically than legal tender. While there is a high expectation of capital gains as an investment target, there is also a high risk of huge losses due to a sudden drop in the value of the cryptocurrencies purchased, making them unstable assets. For this reason, it is difficult for average investors to time their purchases, and the high risk of loss makes it a difficult hurdle to consider as an investment target. Therefore, a system has been proposed that can avoid risks caused by fluctuations as much as possible while also allowing for the expectation of capital gains.

[0003] Patent Document 1 describes a virtual currency time-delay delivery system in which documents certifying the record of purchases of virtual currency purchased at any time and for any amount using system operating costs including user member membership fees are presented to user members as tickets with the right to purchase the purchased virtual currency on a web page for viewing and selection, and when a user member who has obtained a ticket wishes to purchase the virtual currency corresponding to the ticket at a desired time, the virtual currency is sent to the user member's wallet at the purchase price recorded on the ticket at the time of purchase and delivered.

[0004] According to the invention described in Patent Document 1, virtual currency, which is a crypto-asset, is purchased within the scope of system operating costs, including user membership fees, and since tickets with the right to purchase the purchased virtual currency do not require any additional costs for the amount held, user members can obtain the right to purchase virtual currency by simply paying an annual membership fee. If the value of the virtual currency on a held ticket increases, a profit can be made by purchasing virtual currency with the ticket at that time and converting it into cash, and if the value of the virtual currency does not increase over time or decreases, the user can cancel the ticket and not incur a loss. Therefore, the virtual currency time-delayed delivery system described in Patent Document 1 is a system that avoids risk and allows users to expect only profits from price increases.

[0005] As such, the invention described in Patent Document 1 is an effective system for user members who hope to make a profit from the rise in value of cryptocurrencies. However, the tickets used in this system have no additional value, and the purpose is solely focused on the expectation of a profit from the rise in value. Therefore, the system lacks practical application aspects to be accepted by a wider range of users.

[0006] Therefore, it is desirable to provide a system that takes advantage of the characteristics of cryptocurrencies, which make it easy to secure capital gains due to large fluctuations in value, while avoiding the risks associated with falling values ​​and providing a basic mechanism that makes it easy for even beginners to invest, and that can be expected to attract new members by adding new value. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2022-017981 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made in consideration of the problems with the conventional cryptocurrency transfer systems described above, and the object of the present invention is to provide a cryptocurrency-linked card management system and an operating method thereof that allows user members to transfer tokens, which are cryptocurrency purchased at any time and for any amount using system operating costs including membership fees, at the time desired by the user member for the purchase price at the time of initial purchase, and provides them as cards to which any advertisement can be added. [Means for solving the problem]

[0009] In order to achieve the above object, the cryptocurrency-linked card management system of the present invention comprises a card management server that manages cards linked to tokens, which are cryptocurrency, and a user terminal, wherein the card management server allows a user member to view and select cards linked to tokens and present them to the user member so that they can take possession of them, and when the user member who takes possession of the card wishes to purchase the card at a desired time, the card and the token linked to the card are handed over to the user member for the purchase price at the time of the original purchase, and the card contains information that proves the purchase of tokens purchased at an arbitrary purchase price at an arbitrary initial purchase time using system operating costs including the user member's membership fee, and embodies the next purchase right for the purchased tokens. The card image of the card issued by the card management server as a token of the card, which the card management server presents to the user member for viewing, selection, and occupancy includes an advertising display surface, and when an advertiser wishes to display an advertisement on a specific card, the specific card displays the advertiser's advertisement and is associated with ancillary services including a specific service or specific item provided by the advertiser, a price is set for the specific card that is the sum of the purchase price at the time of initial purchase of the linked token and the value of the ancillary services, and when a user member who occupies the specific card wishes to purchase the specific card, the ancillary services associated with the specific card are provided in addition to the token linked to the specific card upon purchase.

[0010] It is preferable that the advertising display surface of the card image of the card that the card management server presents to the user member for viewing, selection, and occupancy displays the advertiser's advertisement if the card has an advertiser wishing to display an advertisement, and displays a specific image related to the token linked to the card if the card does not have an advertiser wishing to display an advertisement.

[0011] The card management server has a card issuance management unit that issues cards to which tokens are linked, and a user holder management unit that stores and manages information about the cards selected and occupied by user members for each user member, and it is preferable that the user holder management unit manages the number of cards occupied by a user member so that it does not exceed a predetermined number, regardless of whether or not the specific card is held.

[0012] When a user member wishes to cancel a card that he or she occupies, the card management server preferably deletes the card from the user member's user holder based on the user member's cancellation input, and presents the deleted card as a new card that can be viewed and selected for occupancy on a web page or cloud.

[0013] When a user member wishes to sell a card that he or she owns or a card that he or she has purchased but has not yet redeemed the associated token, it is preferable that the card management server further has a matching support unit that provides information about the card to be sold on a web page or cloud based on the input sales request information, accepts information about user members who wish to purchase the card, provides information about user members who wish to purchase the card on the web page, and supports finding a user member to whom the card can be sold.

[0014] When a user member wishes to sell a card that he or she owns or a card that he or she has purchased but has not yet cashed in the associated token, once the sale of the card is completed with the user member who wishes to purchase the card, the card management server preferably accepts information regarding the execution of the card sale and purchase, and in the case of the sale of an owned card, moves the card from the user holder of the selling user member to the user holder of the user member who purchased the card.

[0015] When a user member wishes to exchange a card they own for another card, the card management server, upon receiving the exchange request from the user member, provides information about the card to be exchanged on a web page or in the cloud, and if an exchange agreement is reached with another user member who agrees to exchange the card for the card desired to be exchanged, it is preferable that the cards to be exchanged in each user member's user holder be swapped with each other based on the results of the agreement.

[0016] The image displayed on the advertising display surface preferably includes a URL of a website designated by the advertiser.

[0017] In order to achieve the above object, the method of operating a cryptocurrency-linked card management system according to the present invention comprises a card management server that manages cards linked to tokens that are cryptocurrency, and a user terminal, wherein the card management server allows a user member to view and select cards linked to tokens and present them in a manner that allows the user member to take possession of the cards, and when the user member who occupies the card wishes to purchase the card at a desired time, the method delivers the tokens linked to the card together with the card to the user member for the purchase price at the time of the original purchase, wherein the card management server issues a card that includes information certifying the purchase of tokens purchased by a system operating company at a desired time and for a desired purchase price using system operating costs including the user member's membership fee, and embodies the next purchase right of the purchased tokens, and presents the card to the user member for viewing, selection, and possession on a web page or cloud; and the user member who selects and occupies the card purchases the card at a desired time. When a user wishes to purchase a card to be owned, the token linked to the card to be owned is handed over to the user member for the purchase amount at the time of original purchase recorded on the card, and the card management server accepts information on the deposit at the time of delivery and processes the card to which the token is linked as sold; the card image of the card that the card management server presents to the user member for viewing and selection and occupancy includes an advertising display surface; when an advertiser wishes to display an advertisement on a specific card, the specific card displays the advertiser's advertisement and is associated with ancillary services including a specific service or specific item provided by the advertiser; a price is set for the specific card that is the sum of the purchase amount at the time of original purchase of the linked token and the value of the ancillary services; and when a user member who owns the specific card wishes to purchase the specific card, the token linked to the specific card is provided in addition to the ancillary services associated with the specific card upon purchase. [Effects of the Invention]

[0018] According to the cryptocurrency-linked card management system and its operation method of the present invention, user members can select and possess a card to which a token is linked without incurring any acquisition costs, and if they wish to purchase the card when the value of the token linked to the occupied card increases, they can obtain the tokens whose value has increased at the purchase price of the token linked to the card at the time of its initial purchase, and can reliably obtain capital gains at the desired time by simply converting the token into cash and locking in the profit. On the other hand, since occupied cards can be canceled at any time free of charge, if the value of the token linked to the occupied card decreases, losses due to the token value decrease can be avoided by canceling the occupation of the card, making this a system that allows even beginners to invest in cryptocurrencies with confidence.

[0019] Furthermore, according to the cryptocurrency-linked card management system and its operating method of the present invention, the card image of the card to which the token provided to the user member is linked includes an advertising display surface, and advertisers who wish to display advertisements can display advertisements on the advertising display surface free of charge, and additional services including specific services or specific items provided by the advertiser can be associated.Such advertising-attached cards have a selling price set by adding the value of the associated additional services to the initial purchase price of the linked token, so when a user member who has exclusive possession of an advertising-attached card purchases this advertising-attached card as the value of the token increases, the additional services associated with this card also generate sales, resulting in a system in which advertisers can display advertisements free of charge and can also expect to sell the additional services.

[0020] Conversely, from the user member's perspective, if the value of an ad-supported card rises above the selling price of the card, they can purchase the card and exchange the tokens for cash, essentially obtaining the additional services associated with the ad-supported card for free. Therefore, when selecting a card, in addition to simply selecting an ad-free card in the hope of increasing in value, they can also select an ad-supported card in the hope of obtaining additional services, which broadens the range of choices and makes the system more enjoyable for user members.

[0021] According to the cryptocurrency linked card management system and its operating method of the present invention, the advertisement display surface does not need to state specific ancillary services, but can instead state the URL of a website specified by the advertiser. This is expected to increase the opportunities for user members to access the website specified by the advertiser to find out what ancillary services they can expect, and also has the effect of allowing advertisers to raise awareness of their business through their own website without having to carry out any special promotional activities.

[0022] Furthermore, with the cryptocurrency-linked card management system and its operation method according to the present invention, the card image of the purchased card can be kept even after the tokens are converted into cash, so for example, a card on which an advertiser has placed an exclusive design advertisement on the advertising surface can become a collectible card. This is expected to encourage card members to actively participate in card collecting investments. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a block diagram showing an outline of the overall configuration of a crypto asset linked card management system according to an embodiment of the present invention; [Figure 2] A diagram showing the basic operational flow of a crypto asset linked card management system according to an embodiment of the present invention. [Figure 3] FIG. 10 is a diagram illustrating the value structure of a token when its value increases according to an embodiment of the present invention. [Figure 4] 10A and 10B are diagrams showing examples of user holder displays provided to user members according to an embodiment of the present invention. [Figure 5] 10A and 10B are diagrams showing examples of user holder displays provided to user members according to an embodiment of the present invention. [Figure 6] FIG. 10 is a diagram showing an example of a list display in which cards are presented to a user member for viewing, selection, and occupancy according to an embodiment of the present invention. [Figure 7] 10 is a flowchart illustrating a token passing-related process according to an embodiment of the present invention. [Figure 8] 10 is a flowchart illustrating a process for canceling a card according to an embodiment of the present invention. [Figure 9] 10 is a flowchart illustrating a process for selling a card according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] Next, a specific example of an embodiment for implementing the crypto-asset linked card management system and its operating method according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a crypto-asset linked card management system according to an embodiment of the present invention.

[0025] Referring to Figure 1, a crypto-asset linked card management system 1 according to an embodiment of the present invention comprises a card management server 10, a token issuance management terminal 20, a user terminal 30, and an advertiser terminal 40, which are connected via a network 5. There is no limit to the number of user terminals 30 and advertiser terminals 40, but there will generally be multiple. The network 5 is a wide-area network 5 typified by the Internet.

[0026] In a cryptocurrency-linked card management system 1 according to an embodiment of the present invention, a card management server 10 manages a cryptocurrency purchased by a user member for a certain amount at a certain initial purchase time using system operating costs, including membership fees. The card management server 10 issues a card linked to the token and provides the user member with the right to purchase the token. The card is presented to the user member for viewing, selection, and occupancy. When the user member selects and occupies the card and wishes to purchase the card at a certain time, the card and the associated token are handed over to the user member for the purchase price at the time of the initial purchase. Here, a card refers to a collection of electronic data including a record of the purchase of the token associated with the card and a card image. Selecting and occupying a card means that, although an issued card is presented to all user members in a viewable state, a card member can select a desired card from the presented cards and add it to their own user holder, thereby gaining exclusive access to the card for purchases and other transactions. Since occupancy does not constitute a card purchase, no costs are incurred.

[0027] The card can be canceled to release the user from possession, and if the tokens that the user member has the right to purchase with the card they possess increase in value from the time of original purchase, they can make a profit from the increase in value by purchasing them at the original purchase price and selling them immediately.On the other hand, if the tokens decrease in value from the time of original purchase or if there is no prospect of their value increasing in the future, they can avoid losses by canceling the card.Therefore, there is no risk of loss for the user member, and since no costs are incurred except when actually purchasing the card, it is a kind of investment support system that allows them to easily expect to make a profit from an increase in value.

[0028] In addition, the card image of the card that the card management server 10 presents to the user member for viewing, selection, and occupancy includes an advertising display surface, and if an advertiser wishes to display an advertisement on a specific card, the specific card will display the advertiser's advertisement and will be associated with ancillary services including a specific service or specific item provided by the advertiser, and a price will be set for the specific card that is the sum of the purchase price at the time of initial purchase of the linked token and the value of the ancillary services.

[0029] If a user member wishes to purchase this specific card with advertisements, in addition to the tokens linked to the specific card upon purchase, the user member will be provided with additional services associated with the specific card.Therefore, the user member can monopolize the specific card with advertisements, separate from a general card for which he or she simply hopes to make a profit on the increase in value, and with the increase in token value, he or she can also expect to obtain the additional services linked to this card at a discount, making this a system that is expected to attract new user members.

[0030] In the cryptocurrency-linked card management system 1 according to an embodiment of the present invention, transaction processing such as buying and selling of cards linked to tokens is performed in a manner that ensures the reliability of the transaction using a blockchain, thereby preventing tampering and impersonation. The blockchain may be built independently by the cryptocurrency-linked card management system 1, or an existing blockchain used by the issuer of the token linked to the card may be used.

[0031] In the cryptocurrency-linked card management system 1 according to an embodiment of the present invention, the basic method of card usage is for a user member to occupy a desired card, purchase the occupied card at a desired time, and cash in the associated tokens to secure a profit. However, it is also possible to secure a profit by selling an occupied card or a card purchased but not cashed in to another user member who wants to acquire it. This allows user members to aim for higher profits by setting a higher selling price in anticipation of future value increases rather than simply cashing in tokens. Furthermore, with certain cards that include advertisements, as the popularity of the associated ancillary services increases, it is possible to expect to earn profits that exceed the original token value increase.

[0032] Referring to Figure 1, the card management server 10 includes a control unit 11, an input / output unit 12, a memory unit 13, a display unit 14, a user registration unit 15, a card issuance management unit 16, a user holder management unit 17, a matching support unit 18, and an advertising information management unit 19.

[0033] The user registration unit 15 registers as a member a user who wishes to use the crypto-asset-linked card management system 1 provided by the card management server 10, and saves and manages the basic information of the user member sent from the user terminal 30 during member registration. The basic information of the user member includes the user member's name, date of birth, email address, token wallet address, password information, etc. The token wallet address is an address that will be used to receive tokens linked to a card via airdrop when the user member purchases a card. Airdrop means that crypto-assets such as tokens are distributed free of charge if predetermined conditions are met. When a user registers, the user registration unit 15 issues a user member ID unique to the user and notifies the user of the user member ID, and stores the issued user member ID in the storage unit 13 in association with the user's basic information.

[0034] The card issuance management unit 16 issues a card that includes information verifying the purchase of tokens purchased at any initial purchase time for any purchase amount using system operating costs including the user member's membership fee, and embodies the user member's right to purchase the next token, and presents the card to the user member so that the user member can view, select, and take possession of the card. The card is issued as electronic data to which the token is linked by including information verifying the purchase of the token. The card includes a card image. The card issuance management unit 16 generates a card image by displaying an advertisement for the advertiser on the advertising display surface of the card image if the card has an advertiser wishing to display an advertisement, or by displaying a specific image related to the token linked to the card if the card does not have an advertiser wishing to display an advertisement.

[0035] Depending on the decision of the management source of the card management server 10 that purchased the token, one card may be associated with one purchased token, i.e., the purchased token and card may be associated in a one-to-one relationship, or multiple cards may be associated with one purchased token in a one-to-multiple relationship. The latter is the case when, for example, a large amount of money is purchased at one time, the purchased token is divided and a card is issued corresponding to each divided token.

[0036] The purchase of tokens linked to cards is performed by the operating company or the like that manages the card management server 10, and the funds for the purchase are paid from the system operating expenses including the membership fees of the user members, and no new fees are collected from the user members for the purchase, so the user members do not incur any financial burden when initially purchasing tokens. The type, amount, and purchase timing of tokens to be purchased are freely determined by the manager of the card management server 10.

[0037] Since purchased tokens are delivered to user members who wish to purchase them at a later date at the price of the original purchase, it is important to record the purchase, such as when, how much, and what type of token was purchased. Therefore, the card issuance management unit 16 provides card information, including the purchase record of the purchased tokens, to user members by posting it on a web page or cloud. The card issuance management unit 16 displays a list of newly issued cards as well as cards previously issued but not selected by the user member, to make it easier for the user member to select a card.

[0038] When a user member selects a desired card from the displayed list of cards and adds it to the user member's own user holder, the card issuance management unit 16 checks which member user has occupied the selected card, associates the selected and occupied card with the user member who occupies the card, and stores it. At the same time, the card issuance management unit 16 deletes the selected and occupied card from the list displayed so that it can be viewed by all user members.

[0039] A card presented on a web page or in the cloud may not necessarily be selected and reserved by a single user member. Cards may be selected and reserved on a first-come, first-served basis. In some embodiments, the card issuance management unit 16 may set a period for accepting applications for card reservation for each card, hold a lottery among user members who submit card reservations during the period, and select the winner as the user member who will acquire the card. Even if the lottery is conducted fairly, there may be a bias in the winning numbers, creating a sense of unfairness between user members with a high probability of winning and user members with a low probability of winning. Therefore, in this embodiment, a limit is placed on the number of cards a user member may select and reserve, and eligibility to participate in the lottery is limited based on information from the user holder management unit 17, which will be described later.

[0040] The tokens linked to the card are a type of cryptocurrency, and their value fluctuates significantly depending on the operating status of the token issuer's business and the popularity of the token itself. While holding tokens offers the potential for capital gains as their value rises, they can also result in significant losses if their value falls sharply, so token holders are encouraged to monitor their value daily. Since the card embodies the right to purchase tokens, and possessing a card does not constitute purchasing a token, users will not incur losses no matter how much the token's value falls. Conversely, if the value of a token rises, users can almost certainly reap the benefits of the increased value by purchasing a card to possess and immediately selling the tokens linked to the card.

[0041] If the value of the token linked to the occupied card increases and the user member wishes to purchase the occupied card, the user member sends an application to purchase the card from the user terminal 30, and the card issuance management unit 16 sends a notice requesting payment of the purchase price of the card to the user terminal 30. After that, when payment is completed, based on the deposit information, the card issuance management unit 16 changes the card purchased by the user member from occupied to purchased, and updates the association information between the user member and the card.

[0042] On the other hand, it is also possible to cancel an occupied card when the value of the token linked to the occupied card drops or when it is unlikely that the value will increase in the future. In this case, the card issuance management unit 16 provides the canceled card on a web page or cloud as a newly selected and available card. Accordingly, the card information stored in association with the canceled user member is deleted or updated as canceled.

[0043] In addition, the occupied card can be sold to another user member. In this case, when the sale is completed, the card issuance management unit 16 receives information about the execution of the card sale, deletes or updates the card information stored in association with the user member who sold the card to indicate that it has been sold, and stores the information about the sold card in association with the user member who purchased the card.

[0044] The user holder management unit 17 manages how many cards each user member currently occupies, and provides this information to be displayed on the user holder screen of the user member on a web page or on the cloud. The user holder screen displays the occupied cards side by side, and a card information screen is displayed for each card. The card information screen displays the card image, information proving the purchase such as the purchase date and purchase amount of the token linked to the card, and a display of the rate of change so that it is easy to understand whether the value of the token is rising or falling.

[0045] Owning a card does not incur any fees, and it can be canceled or sold, so the more cards you own, the more advantageous it is. In one embodiment, if multiple user members apply for a card, a lottery is held. Therefore, user members who never win the lottery may lose motivation to continue paying their membership fees. To reduce this sense of unfairness, the cryptocurrency-linked card management system 1 according to an embodiment of the present invention imposes a limit on the number of cards each user member can own, preventing a concentration of cards among some user members. In one embodiment, a user member is limited to ten cards. The ten-card limit is merely an example, and the number of cards that can be owned may be more or less than this limit. Cards that user members can select and own include general cards without advertisements and specific cards with advertisements. The user holder management unit 17 imposes a limit on the number of cards owned regardless of the type of card.

[0046] The user holder management unit 17 monitors the number of cards owned by user members to ensure that it does not exceed the limit, and in one embodiment, provides a list of user members who own up to the limit of cards to the card issuance management unit 16, and manages the list so that user members included in the list are not included in the lottery when a lottery is held to acquire a card. Therefore, if a user member who already owns up to the limit of cards wishes to own a new card, they must purchase, cancel, or sell one of the cards they own to another user member before applying for a new card.

[0047] When a user member uses one of the cards in his / her possession in this manner, the user holder management unit 17 updates the information stored regarding the card in the user member's possession to an expression corresponding to the process, such as "occupied," "purchased," "cancelled," "sold," etc.

[0048] The matching support unit 18 provides card information on a web page or cloud of user members who wish to sell cards they own or cards they have purchased but have not yet exchanged for tokens, and in response, accepts information on user members who wish to purchase cards and provides information on user members who wish to purchase cards on a web page or cloud, thereby supporting the user in finding a user member to whom to sell a card.

[0049] When applying to sell a card that they own or a card that they have already purchased but not yet redeemed, a user member submits the desired selling price, and the matching support unit 18 provides other user members with information about the card they wish to sell, including the desired price, on a web page or in the cloud. In response, if another user member applies to purchase the card at the desired price, the matching support unit 18 provides information about the user member who wishes to purchase the card on a web page or in the cloud. This allows user members who wish to sell their cards to negotiate a sale directly with other user members who wish to purchase the card.

[0050] The user member who will purchase the card may be determined mechanically by the matching support unit 18 according to specific rules. When determining mechanically, the purchaser may be determined by lottery if multiple purchase applications are received within a certain acceptance period. However, in this embodiment, like an auction, the user member who wishes to purchase a card submits the amount they are willing to pay when submitting their purchase application, and the user member who offers the highest amount they are willing to pay within the certain acceptance period is selected as the purchaser. Once the card selling price is determined in this manner, the user member who wishes to purchase the card pays the purchase fee to the user member who wishes to sell the card, and the card sale is completed. In one embodiment, the matching support unit 18 accepts information about the execution of the card sale and provides the card issuance management unit 16 and the user holder management unit 17 with information about the card sale and its associated card, as well as updating the display screen of the user holder management unit 17.

[0051] In an embodiment, the matching support unit 18 supports the exchange of cards between user members in addition to the sale of cards between user members. When a user member wishes to exchange a card they own for another card, the matching support unit 18 receives the exchange request from the user member and provides information about the card they wish to exchange on a web page or the cloud. This allows the user member who wishes to exchange for another card to proceed with card exchange negotiations with the other user member by referring to the information about the card that the other user member wishes to exchange. Furthermore, response information from other user members who agree to the exchange in response to the information about the card they wish to exchange provided on the web page or the cloud may be received, and the response information may be provided on the web page or the cloud or directly notified to the user member who wishes to exchange for another card.

[0052] When an agreement to exchange cards is reached between a user member who wishes to exchange for another card and another user member who agrees to the exchange, the matching support unit 18 accepts the results of the exchange agreement and provides exchange information to the card issuance management unit 16 and the user holder management unit 17. The card issuance management unit 16 updates the card information occupied by each user member so that it is exchanged, and the user holder management unit 17 performs processing to replace the information of the card occupied by the user member displayed on the user holder screen.

[0053] When an advertiser wishes to display an advertisement on a specific card, the advertisement information management unit 19 acquires, saves, and manages information about the advertisement to be displayed on the advertisement display surface of the card image from the advertiser. Before acquiring the advertisement information, the advertisement information management unit 19 accepts registration information such as the advertiser's name or title and contact information to register the advertiser, and when the advertisement information is acquired, it associates the registered advertiser with the advertisement information and saves it. Once registered as an advertiser, like a user member, the advertiser can view a list of issued but unselected cards. The advertiser can then select a specific card from this list and apply for advertisement display.

[0054] Separately, the advertisement information management section 19 may receive information on the card immediately before issuance from the card issuance management section 16, inquire in advance of registered advertisers about their desire to display advertisements, and if there is an advertiser who desires to display an advertisement, obtain advertisement information from the advertiser and hand it over to the card issuance management section 16, so that the card is issued as an advertisement-attached card from the beginning when the card is issued.

[0055] In addition, the advertising information management unit 19 acquires information about ancillary services associated with the specific card along with the advertisement to be displayed on the specific card. The ancillary services may be specific services or specific goods provided by the advertiser, or a combination of these, and the information about the ancillary services includes at least the value of the ancillary services used to determine the value of the specific card displaying the advertisement. For example, if the ancillary service is a good worth 5,000 yen, the price of the specific card with advertisement associated with this ancillary service is set to a value obtained by adding 5,000 yen to the initial purchase price of the linked token. When a user member purchases this specific card with advertisement, in addition to the token linked to the card, the advertiser will provide the ancillary service with a good worth 5,000 yen.

[0056] If the content of the ancillary service is predetermined, the advertisement information management unit 19 also acquires the content of the ancillary service as information on the ancillary service and stores it in association with the registered advertiser and advertisement information. In the embodiment, the content of the ancillary service does not necessarily have to be predetermined. By not determining the content of the ancillary service in advance, the advertiser can provide an appropriate item, such as seasonal agricultural products, at the time the user member purchases a specific card with an advertisement.

[0057] If the content of the additional services is decided in advance and disclosed to user members, it is likely to be popular among user members who have high expectations for the content of the additional services. On the other hand, if the content of the additional services is not decided in advance, it is expected to become popular among an unspecified number of user members due to the excitement of not knowing what additional services will be provided.

[0058] In this embodiment, the advertiser can freely set the advertisements to be displayed on the advertising display surface. Therefore, if the advertisements are predetermined, they may include the details of the ancillary services, or they may be designed to raise awareness of the advertiser's business activities regardless of the ancillary services. In the latter case, it is effective to include the URL of a website designated by the advertiser. This is because when a specific card with an advertisement is presented for viewing, it increases the chances that user members will access the website out of curiosity about what ancillary services are available.

[0059] In the cryptocurrency-linked card management system 1 according to an embodiment of the present invention, no advertising fees are charged for displaying advertisements on specific cards. This allows advertisers to increase opportunities to raise awareness of their business without paying a fee. Furthermore, specific cards displaying advertisements are likely to be purchased when the associated tokens increase in value. Since sales for the ancillary services are generated at the time of purchase, it is expected that sales will increase without advertising expenses. In particular, for advertisers dealing in seasonal products, if the tokens associated with the specific cards on which the advertisements are posted increase in value, it is expected that sales will increase even during the slow season for the products. Furthermore, advertisers can increase sales during the slow season by displaying a period during which a special benefit is granted in the advertisement and setting up ancillary services so that special benefits can be obtained by purchasing the specific card with the advertisement during this period.

[0060] The advertising information management unit 19 passes the stored advertising information to the card issuance management unit 16, which extracts the advertisement to be displayed on the advertising display surface from the passed advertising information, generates a specific card image with the advertisement, and also extracts the value of the ancillary services to issue a specific card with the advertisement or update the card information. When a card with an advertisement is purchased by a user member, the card issuance management unit 16 updates the sales record each time a purchase occurs or tally up the sales record every fixed period, and generates a sales record list for each advertiser. The generated sales record list for each advertiser is sent to each advertiser, and the advertiser provides ancillary services to the user member who purchased the card in accordance with the sales record list.

[0061] The storage unit 13 stores various management data such as registration information including basic user information and information on issued cards, as well as a control program for controlling the card management server 10. The storage unit 13 is realized by a storage medium such as a hard disk, and may be configured as an external memory device if there is a large amount of information to be stored.

[0062] The display unit 14 displays management information such as token purchase records and information on issued cards, and, if necessary, programs such as a control program for controlling the card management server 10. The display unit 14 is realized by a liquid crystal display device or the like. The control unit 11 controls each component of the card management server 10 in accordance with the control program stored in the storage unit 13 so that it performs the functions described above.

[0063] The token issuance management terminal 20 is a terminal device used by the token issuer to issue tokens and manage airdrops, and is equipped with a control unit 21, an input / output unit 22, a memory unit 23, a display unit 24, a user registration unit 25, a token issuance management unit 26, and a wallet 27. The user registration unit 25 registers and manages user information such as the name or appellation of a user who wishes to purchase a token and the user's wallet address.

[0064] The token issuance management unit 26 manages information on the issuance of new tokens and the buying and selling of issued tokens. After the issued tokens are stored in the wallet 27, they are either directly airdropped or sold to general users via a cryptocurrency exchange. The wallet 27 is also used to receive cryptocurrency such as coins as payment for the sale of tokens. A wallet may be prepared within the wallet 27 for each user who purchases tokens, and sold tokens may be temporarily stored until a delivery instruction is received.

[0065] The input / output unit 22 includes communication means for receiving user information when a user newly registers, transmitting tokens, receiving crypto assets such as coins, etc. The input / output unit 22 also includes a keyboard or touch panel for inputting information on tokens to be issued to the token issuance management terminal 20, and a pointing device such as a mouse for selecting data to be displayed on the display screen.

[0066] The storage unit 23 stores various electronic data such as basic information regarding token issuance and user information of registered users, as well as a control program for controlling the token issuance management terminal 20 and the like. The display unit 24 displays various data such as token issuing information and user information, and, if necessary, programs such as control programs. The control unit 21 controls each component of the token issuance management terminal 20 to perform the above-mentioned functions in accordance with a control program stored in the storage unit 23.

[0067] The user terminal 30 includes a control unit 31, an input / output unit 32, a memory unit 33, a display unit 34, and a wallet 35. Wallet 35 is a storage location for tokens that are sent from the token storage wallet after a user member who selects and occupies a card wishes to purchase the card and pays the purchase fee.

[0068] The input / output unit 32 includes a communication means for transmitting basic information when a user newly registers as a member and for receiving tokens. The input / output unit 32 also includes a keyboard or touch panel for inputting the user's basic information into the user terminal 30, and a pointing device such as a mouse for selecting data to be displayed on the display screen. The storage unit 33 stores various electronic data such as basic information about the user and tokens, as well as a control program for controlling the user terminal 30.

[0069] The display unit 34 displays screen data for using the crypto asset linked card management system 1, such as web page information provided by the card management server 10, and, if necessary, programs such as control programs. The control unit 31 controls each component of the user terminal 30 to perform the above-mentioned functions in accordance with a control program stored in the storage unit 33. The user terminal 30 is realized by an electronic device such as a personal computer, a tablet terminal, or a smartphone.

[0070] The advertiser terminal 40 is a terminal of an advertiser who places an advertisement on a card provided by the card management server 10, and includes a control unit 41, an input / output unit 42, a storage unit 43, and a display unit 44. The input / output unit 42 includes communication means for transmitting the advertiser's registration information and the data of the advertisement to be displayed on the card, and for receiving a sales record list of the card with advertisement. The input / output unit 42 also includes a keyboard or touch panel for inputting the advertiser's basic information and the advertisement data into the advertiser terminal 40, and a pointing device such as a mouse for selecting the data to be displayed on the display screen.

[0071] The storage unit 43 stores various electronic data such as basic information about the advertiser and a sales performance list, as well as a control program for controlling the advertiser terminal 40. The display unit 44 displays electronic data such as a sales record list and advertisements provided by the card management server 10, and, if necessary, programs such as a control program. The control unit 41 controls each component of the advertiser terminal 40 to perform the above-mentioned functions in accordance with the control program stored in the storage unit 43. The advertiser terminal 40 is realized by an electronic device such as a personal computer, a tablet terminal, or a smartphone.

[0072] FIG. 2 is a diagram showing the basic operation flow of the crypto-asset linked card management system according to an embodiment of the present invention. Referring to Figure 2, it shows how the system operator, token issuance management source, user member, and advertiser are involved in basic operations, corresponding to the four components of the cryptocurrency-linked card management system 1 shown in Figure 1, namely, the card management server 10, the token issuance management terminal 20, the user terminal 30, and the advertiser terminal 40.

[0073] When a user of the cryptocurrency-linked card management system 1 registers as a new user member, he / she pays an annual membership fee to the system operator as shown in (1-1). In addition to the annual membership fee, the user member pays the system operator a card purchase fee when purchasing a card. The annual membership fee is used to cover operating costs, and the card purchase fee corresponds to the recovery of the purchase fee for tokens purchased by the system operator at any time.

[0074] The system operator allocates a portion of the annual membership fee to the purchase cost of new tokens as shown in (1-2), and purchases tokens from the token issuing and managing source for any amount at any initial purchase time. Based on the token purchase history, such as the date and purchase cost, the system operator issues a card linked to the token as shown in (1-3), and presents it to the user member on a web page or cloud provided by the card management server 10 so that the user can view, select, and take possession of the card.

[0075] When a user member selects and occupies a card of their choice from among the cards available for viewing, and the token linked to the card subsequently increases in value and the user member wishes to realize the profit from the increase in value, the user member sends a card purchase application from the user terminal 30 to the card management server 10 of the system operator, as shown in (2). In this embodiment, the card purchase application is sent to the card management server 10 by selecting the payment button displayed on the display unit 34 of the user terminal 30 while the app is running.

[0076] When the user member has completed payment of the card purchase cost to the system operator, the card management server 10 accepts the payment information and sends a notice to the wallet 35 of the user member's user terminal 30 instructing the user member to send the token associated with the purchased card. The wallet in which the system operator stores tokens purchased at any initial purchase time and for any amount may be created within the card management server 10, but depending on the embodiment, it may also be in the wallet 27 of the token issuance management terminal 20, in the form of the system operator's account at a cryptocurrency exchange, or as a wallet of a contractor that purchases and receives / pays tokens on behalf of the user.

[0077] Upon receiving a notification instructing the sending of tokens, the tokens stored in the token storage wallet are airdropped into the wallet 35 of the user terminal 30 and handed over to the user member as shown in (2-1). If the card purchased by the user member is a general card without advertisements, the user member will then realize the profit by converting it into cash at a cryptocurrency exchange.

[0078] Furthermore, if the card purchased by the user member is a specific card displaying an advertisement, tokens are airdropped based on the payment of the card purchase cost, as shown in (2-1), and additional services associated with the card are provided. In this embodiment, when the user member's card purchase application is sent to the card management server 10 and payment for the purchase is made, the card management server 10 transfers the information of the card currently occupied by the user holder to the information field for the paid card. If this card is a card with an advertisement, the sales record list is updated and the updated sales record list is sent to the advertiser's advertising terminal 40 as shown in (2-2). Then, as shown in (2-3), the advertiser refers to the sales record list and provides additional services to the user member who purchased the card with the advertisement. The costs incurred in providing the additional services are billed to the system operator as shown in (2-3), and although not shown, the system operator pays the advertiser the cost of the additional services included in the card purchase cost received from the user member.

[0079] Users who purchase cards with advertisements will then realize their profits by converting the airdropped tokens into cash at a cryptocurrency exchange. As a result, in the case of cards with advertisements, users will receive profits from the tokens' value increase and additional services provided by advertisers by purchasing the card.

[0080] Figure 3 shows the value structure of a token when its value increases according to an embodiment of the present invention. Figure 3(a) shows the increase in value for a general card without advertisements, and Figure 3(b) shows the increase in value for a specific card with advertisements.

[0081] Referring to Figure 3(a), the selling price C of a card linked to a token purchased by the system administrator for an arbitrary amount at the time of initial purchase is equal to the value of the token at the time of initial purchase, b0, as shown in (A). The state in (B) shows the state in which the value of the token has subsequently risen slightly. The value of the token rises to b1, but the selling price of the card is fixed at the amount of the token at the time of initial purchase, so in the state in (B), the gain on the increase in value is represented by b1 - b0. The state shown in Figure (C) is when the value of the token has increased further from the state shown in Figure (B). In the state shown in Figure (C), the profit from the increase in value is represented by b2 - b0. In this way, with ordinary cards without advertising, the amount of profit is determined solely by the value of the linked token.

[0082] Referring to Figure 3(b), the selling price C' of a specific card with advertisements is set as the sum of the value of the token at the time of initial purchase (b0) and the value of the ancillary services associated with the card (a0), as shown in (A). The state in which the value of the token subsequently rises slightly is shown in (B). The value of the token rises to b1, but is still lower than the selling price C' of the card. If the user member purchases a card and exchanges the tokens for cash at this point, the value of the tokens will be equivalent to b1, but this will not reach the selling price C' of the card. Therefore, by purchasing the card and exchanging it for cash, the user member will have paid the difference shown as a1 in (B). Since the user member will receive ancillary services worth a0 when purchasing the card, they will ultimately obtain the ancillary services worth a0 at a price a1 that is discounted by the increase in the token value.

[0083] The value of the token rises further from the state shown in (B) to b2, which is equal to the selling price C' of the card, resulting in the state shown in (C). At this point, if a user member purchases a card and exchanges the token for cash, they will receive income equivalent to the selling price C' of the card, and will be able to obtain additional services with a value of a0 for free. It goes without saying that if the value of the token rises further from the state shown in (C), they will be able to earn revenue from the token alone.

[0084] With regular cards without ads, you can simply expect to make a profit from the increase in the value of the tokens, but with certain cards with ads, you can also expect to see how cheaply you can obtain the additional services associated with the card, which can broaden the range of enjoyment you can get from owning the card.

[0085] FIG. 4 is a diagram showing an example of a display of a user holder provided to a user member according to an embodiment of the present invention. 4, card information screens 51 and 52 are displayed side by side on user holder screen 50. When the number of cards that can be placed and occupied in the user holder is two, user holder screen 50 only displays card information screens 51 and 52 as shown in Fig. 4, but when the number of cards that can be placed and occupied in the user holder is three or more, all card information screens (51, 52, ...) can be viewed by scrolling the screen.

[0086] In FIG. 4, card information screen 51 displays information about a card that has already been selected and occupied, while card information screen 52 indicates that there is still space available and that a new card can be viewed, selected, and occupied. The number of cards that can be placed in a user holder is predetermined to prevent the issued cards from being concentrated among a few card members and to provide a wide range of opportunities for occupation among many user members. For the sake of explanation, it is assumed here that the number of cards that can be placed in a user holder is two. When the number of cards occupied by a user member is less than the number of cards that can be placed in the user holder, card information screens (51, 52) without any cards are displayed for the number of missing cards. When no cards have been selected for occupation, both card information screens (51, 52) are displayed as if there is space available and that a new card can be viewed, selected, and occupied. On the other hand, when the number of occupied cards has reached the number of cards that can be placed in the user holder—in this case, when both cards are occupied—the card information screens (51, 52) do not indicate that there is space available and that a new card can be viewed, selected, and occupied. In other words, in this state, a new card cannot be selected.

[0087] If an occupied card already exists, the card information screen (51, 52) displays a card image 100 at the top, and below that, information verifying the purchase of this card is displayed. The card image 100 includes an advertisement display surface 101, and if an advertiser wishes to display an advertisement, the advertisement specified by the advertiser is displayed on the advertisement display surface 101. If the card does not have an advertiser to display an advertisement, a specific image related to the token linked to the card is displayed.

[0088] The information displayed below the card image 100 includes coin 61 indicating the type of token, exchange 62 indicating the name of the cryptocurrency exchange, base rate 63 indicating the rate at the time of initial token purchase which is the benchmark value for the rate of fluctuation, current rate 64 indicating the current token rate, management number 65 indicating the card's unique management number, issue date and time 66 indicating the time of initial token purchase, airdrop 67 indicating the amount of tokens airdropped, card price 68 indicating the set price of the card, and present value 69 indicating the current value of the token linked to the card.

[0089] Also, just below the card image 100, an arrow and a rate of change 60 indicating the current rate of change relative to a base rate 63 are displayed, so that it is clear at a glance whether the value of the card is rising or falling. In this embodiment, this arrow is a blue arrow pointing upward to the right when the value of the card is rising, and a red arrow pointing downward to the right when the value is falling. Furthermore, at the bottom of the card information screen 51, a card abandonment button 70 that can be selected to cancel the card and a payment button 71 that can be selected to purchase the card are displayed. The layout of the user holder screen 50 shown in FIG. 4 and the display items and layout on the card information screens (51, 52) are just examples, and the display items and layout may be freely rearranged as long as the card can be identified and information proving the purchase of the associated token is included.

[0090] FIG. 5 is a diagram showing an example of a display of a user holder provided to a user member according to an embodiment of the present invention. FIG. 5 shows the user holder screen 50 similar to FIG. 4, but shows a state in which a newly selected card has been added to the card information screen 52, which was blank in FIG. 4. The newly selected card is a specific card with an advertisement, and the advertisement is displayed on the advertisement display surface 111 of the card image 110 displayed on the card information screen 52. The advertisement displayed on the advertisement display surface 111 also includes a website URL 112 designated by the advertiser. Since the content of the advertisement is freely set by the advertiser, some advertisers may specify additional services provided by the advertiser, while others may not include much information other than the website URL 112 to encourage viewing of the advertiser's website. The advertisement may also include a special character or the like to increase the popularity of the card itself.

[0091] The information displayed below the card image 110 is the same as that of a general card displayed on the card information screen 51. In Fig. 5, a general card is displayed on the card information screen 51 on the left, and a specific card with an advertisement is displayed on the card information screen 52 on the right, but the display positions can be freely set within the user holder screen 50 without distinction between a general card and a specific card with an advertisement.

[0092] FIG. 6 is a diagram showing an example of a list display in which cards are presented to a user member for viewing, selection, and occupancy according to an embodiment of the present invention. When tokens are purchased at any time using system operating expenses, new cards are issued in response to the purchase of those tokens. The issued cards are presented to the user member as a card list, which the user member can view, select, and occupy. Referring to FIG. 6, individual card information fields 56 are displayed side by side on the card list screen 55. While FIG. 6 shows an example in which four individual card information fields 56 are displayed, two by two, vertically and horizontally, the layout and arrangement of the individual card information fields 56 displayed on the card list screen 55 may be freely set. If there are too many cards to fit on one screen, the entire screen can be viewed by scrolling. The card list screen 55 of this embodiment includes filter information 58 that allows the user member to select how to filter the cards for viewing and sorting conditions 59 that allow the user member to select the sorting order, so that the cards can be viewed easily.

[0093] The individual card information field 56 displays the card image 100 as well as the issue date and time 66, card price 68, base rate 63, current rate 64, airdrop 67, and fluctuation rate 60, which are necessary for determining card selection. It also includes an add holder button 57 for selecting a card and adding it to the user holder.

[0094] In Figure 6, four cards are displayed as the same card. This corresponds to the situation where, for example, when a large number of tokens are purchased at one time, the system operator decides to divide the purchased tokens into four and issue a card for each. Although not displayed in the individual card information field 56, each card is assigned an individual management number 65, so even if a user member selects one of the four cards, the card management server 10 can identify which card was selected.

[0095] FIG. 7 is a flowchart illustrating a token passing-related process according to an embodiment of the present invention. 7, in step S700, the card management server 10 issues a card including information verifying the purchase of the token in response to the purchase of the token, and presents the card to the user member on a web page or cloud that introduces the card so that the user member can view, select, and take possession of the card. The cards that the card management server 10 presents to the user member so that the user member can view, select, and take possession of the card are not limited to cards corresponding to newly purchased tokens, but also include cards that have been issued corresponding to previously purchased tokens but for which a user member who wishes to select and take possession has not yet been found.

[0096] The user member can view the cards presented by the card management server 10 through the card list screen 55. When the user member finds a card that he / she wishes to occupy among the presented cards, he / she selects it and sends information about the card he / she wishes to occupy from the user terminal 30 to the card management server 10 (step S710). Specifically, when the user member selects the add holder button 57 in the individual card information field 56 that he / she wishes to occupy, the information about the card he / she wishes to occupy is transmitted to the card management server 10.

[0097] The card management server 10 moves the card selected by the user member to the user holder of this member, and deletes the card selected by the user member from the card list screen 55 that introduces cards (step S720). Although the case described here is first come, first served, there is not necessarily only one user member who wishes to occupy a certain card, so a certain acceptance period may be set, and the user member who will occupy the card may be selected by lottery from among the user members who wish to occupy the card within the acceptance period.

[0098] After the user member takes possession of the card, the user member monitors the change in the value of the token linked to the card as necessary. When the value of the token increases and the user member wishes to realize the profit from the increase in value, the user member applies for the purchase of the card via the user terminal 30 in step S730. In this embodiment, the user member selects the payment button 71 on the card information screen (51, 52) in the user holder, and the information regarding the purchase of this card is transmitted to the card management server 10.

[0099] In response to the card purchase application, the card management server 10 sends a payment guide email, and the user member pays the card purchase price (step S740). Payment can be made by various methods, such as electronic payment or bank transfer. If payment is made in cryptocurrency such as coins, it may be sent directly from the user member's wallet to the wallet of the card management server 10.

[0100] When the user member completes payment, the card management server 10 accepts the payment information and sends a notification to the wallet 35 of the user member's user terminal 30 instructing the user member to send the token associated with the purchased card. Accordingly, in step S745, the token associated with the card is sent from the token storage wallet to the user member's wallet 35. Furthermore, in step S750, the card management server 10 processes the purchased card as sold, changing it from an occupied state. In this embodiment, the purchased card is deleted from the user's holder, and the card information screen (51, 52) for this card is accordingly changed to an empty state allowing for additions. In addition, in this embodiment, the user's My Page includes a card purchase transaction history section that displays a list of purchased cards, and the purchased card is moved to the card purchase transaction history section and processed as sold.

[0101] If the card purchased by the user member in steps S730 and thereafter is a card with advertisements, additional services associated with the card are further provided to the user member by the advertiser in step S755.

[0102] FIG. 8 is a flowchart illustrating a process for canceling a card according to an embodiment of the present invention. 8, in step S800, the user member applies for card cancellation. In this embodiment, the user member selects the card cancellation button 70 on the card information screen (51, 52) in the user holder, and information requesting cancellation of the card is transmitted to the card management server 10.

[0103] When the card management server 10 receives the information requesting card cancellation, it cancels the card designated by the user member in step S810. Specifically, it deletes or updates the card information stored in association with the canceled user member to indicate that it has been canceled. Accordingly, it updates the user holder data (step S820) to confirm the card currently occupied by the user. In this embodiment, the information on the canceled card is deleted from the card information screen (51, 52) in the user holder, and the card information screen (51, 52) is changed to one indicating that the card is free.

[0104] On the other hand, since another user member may wish to occupy the cancelled card, the card management server 10 selects the cancelled card in step S830 and presents it on a web page or cloud as a card available for occupancy.

[0105] FIG. 9 is a flowchart illustrating a process for selling a card according to an embodiment of the present invention. 9, in step S900, upon receiving input from a user member (referred to as user member A for the sake of distinction) who wishes to sell a card that has been occupied or purchased but has not yet been redeemed for tokens, a card sale offer is sent from user member A's user terminal A to card management server 10. The sale offer also includes the selling price desired by user member A who wishes to sell the card.

[0106] Upon receiving the sale application, the card management server 10 presents the card information to be sold on a web page or on the cloud in step S910, and waits for responses from other user members. If another user member (referred to as user member B for the sake of distinction) views the card information presented in step S910 and wishes to purchase the card, user member B sends a card purchase request for the presented card via user terminal B in step S920. In some embodiments, the card purchase request may include information about user member B's desired purchase price. This is the case when user member B will not purchase the card at the desired selling price, but will purchase it if the selling price drops to the desired purchase price. The card management server 10 provides information about user members wishing to purchase the card on a web page or in the cloud to support finding a user member to sell the card to. There is not necessarily only one user member who wishes to purchase the presented card. Therefore, the user member who will purchase the card may be determined automatically by the card management server 10. In this embodiment, a certain acceptance period is set for the card to be sold, and user members B who have sent an acceptance request for the card within this acceptance period are tallied, and a card purchaser is determined from among them by lottery (step S930).

[0107] Once the purchaser of the card has been decided, user member B, who has become the purchaser of the card, pays the card purchase price to user member A, the seller of the card. The card management server 10 accepts information confirming the payment of the price at this time (step S940) and performs the card sale process. Specifically, if the card to be sold is a card owned by user member A, the sold card is deleted from user member A's user holder and made vacant, and the card sold to user member B's user holder is added as an owned card. If the card to be sold has already been purchased by user member A and the tokens have not been redeemed for cash, it is deleted from the card purchase transaction history section of user member A's My Page and moved to the card purchase transaction history section of user member B's My Page.

[0108] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the present invention is not limited to the above-described embodiments and can be modified in various ways without departing from the technical scope of the present invention. [Explanation of symbols]

[0109] 1. Cryptocurrency linked card management system 5. Network 10 Card Management Server 11, 21, 31, 41 Control unit 12, 22, 32, 42 input / output section 13, 23, 33, 43 storage section 14, 24, 34, 44 display section 15, 25 User Registration Section 16 Card Issuance Management Department 17 User Holder Management Department 18 Matching Support Department 19 Advertising Information Management Department 20 Token issuing management terminal 26 Token Issuance Management Department 27, 35 Wallet 30 User terminals 40 Advertiser Terminal 50 User Holder Screen 51, 52 Card information screen 55 Card List Screen 56 Individual card information column 57 Add holder button 58 Filter Information 59 Sorting Criteria 60 Rate of change 61 coins 62 Exchanges 63 Base Rate 64 Current Rate 65 Management number 66 Issue Date 67 Airdrop 68 Card Price 69 Present Value 70 Card abandon button 71 Payment button 100, 110 card images 101, 111 Advertising display surface 112 Website URLs

Claims

1. A card management system comprising a card management server that manages cards linked to tokens that are crypto assets, and a user terminal, wherein the card management server presents cards linked to tokens to user members so that they can view, select, and possess them, and when the user member who possesses the card wishes to purchase the card at a desired time, the card and the token linked to the card are handed over to the user member for the purchase price at the time of initial purchase, The card includes information certifying the purchase of tokens purchased at any initial purchase time and for any purchase amount using system operating costs including user membership fees, and is issued by the card management server as a token that embodies the next purchase right for the purchased tokens; The card image of the card that the card management server presents to the user member for viewing, selection, and occupation includes an advertising display surface, and if an advertiser wishes to display an advertisement on a specific card, the specific card displays the advertiser's advertisement and is associated with ancillary services including a specific service or specific item provided by the advertiser, and a price is set for the specific card that is the sum of the purchase price of the linked token at the time of initial purchase and the value of the ancillary services, A cryptocurrency-linked card management system characterized in that when a user member who occupies the specific card wishes to purchase the specific card, in addition to a token linked to the specific card, additional services associated with the specific card are provided upon purchase.

2. The cryptocurrency-linked card management system described in claim 1, characterized in that the advertising display surface of the card image of the card that the card management server presents to the user member for viewing, selection, and occupancy displays the advertiser's advertisement if the card has an advertiser wishing to display an advertisement, and displays a specific image related to the token linked to the card if the card does not have an advertiser wishing to display an advertisement.

3. the card management server has a card issuance management unit that issues cards linked to tokens, and a user holder management unit that stores and manages, for each user member, information about cards selected and occupied by the user member; The cryptocurrency-linked card management system described in claim 1, characterized in that the user holder management unit manages the number of cards owned by a user member so that it does not exceed a predetermined number, regardless of whether or not the specific card is held.

4. The cryptocurrency-linked card management system of claim 3, characterized in that when a user member wishes to cancel a card that they own, the card management server deletes the card from the user member's user holder based on the user member's cancellation input, and presents the deleted card as a new card that can be viewed and selected and occupied on a web page or cloud.

5. The cryptocurrency-linked card management system of claim 3, characterized in that when a user member wishes to sell a card that they own or a card that they have purchased but have not yet cashed in the associated tokens, the card management server provides information about the card they wish to sell on a web page or cloud based on the input sales request information, accepts information about user members who wish to purchase the card, provides information about user members who wish to purchase the card on the web page, and supports finding a user member to whom the card can be sold.

6. The cryptocurrency-linked card management system of claim 3, characterized in that when a user member wishes to sell a card that they own or a card that they have purchased but have not yet cashed in the associated tokens, and the card sale is completed with the user member who wishes to purchase the card, the card management server accepts information regarding the execution of the card sale and purchase, and in the case of the sale of an owned card, moves the card from the user holder of the selling user member to the user holder of the user member who purchased the card.

7. The cryptocurrency-linked card management system of claim 3, characterized in that when a user member wishes to exchange a card they own for another card, the card management server, upon receiving the exchange request from the user member, provides information about the card to be exchanged on a web page or cloud, and if an exchange agreement is reached with another user member who agrees to exchange the card for the card desired to be exchanged, swaps the cards to be exchanged in the user holders of each user member based on the results of the agreement.

8. The crypto-asset linked card management system according to claim 1, wherein the image displayed on the advertising display surface includes a URL of a website designated by the advertiser.

9. A method of operating a card management system comprising a card management server that manages cards linked to tokens that are crypto assets, and a user terminal, wherein the card management server presents cards linked to tokens to user members so that they can view, select, and possess them, and when the user member who possesses the card wishes to purchase the card at a desired time, the card and the token linked to the card are handed over to the user member for the purchase price at the time of initial purchase, The card management server issues a card including information verifying the purchase of tokens purchased by the system operating company at any initial purchase time and for any purchase amount using system operating costs including the user member's membership fee, as a card embodying the next purchase right of the purchased tokens, and presents the card to the user member for viewing, selection, and ownership on a web page or cloud; When a user member who selects and occupies a card wishes to purchase the card at a desired time, the token linked to the card is handed over to the user member for the purchase amount recorded on the card at the time of the original purchase, and the card management server receives information on the deposit at the time of handover and processes the card to which the token is linked as having been sold; The card image of the card that the card management server presents to the user member for viewing, selection, and occupation includes an advertising display surface, and if an advertiser wishes to display an advertisement on a specific card, the specific card displays the advertiser's advertisement and is associated with ancillary services including a specific service or specific item provided by the advertiser, and a price is set for the specific card that is the sum of the purchase price of the linked token at the time of initial purchase and the value of the ancillary services, A method for operating a cryptocurrency-linked card management system, characterized in that when a user member who occupies the specific card wishes to purchase the specific card, in addition to a token linked to the specific card, additional services associated with the specific card are provided upon purchase.

Images