KR102526426B1 - System of providing service for transacting creation based on non-fungible token - Google Patents

Abstract

The present invention relates to a system for providing a creation transaction service based on a non-fungible token (NFT), which comprises: a plurality of user terminals fulfilling requests for posting creations; and a server posting a plurality of creations in response to the posting request and receiving evaluation information for each of the plurality of the posted creations. Preferably, the server can select one or more creations as creations subject to NFT issuance among the plurality of the creations, based on whether each of the plurality of the creations meets the conditions for NFT issuance and records the information on the creation subject to NFT issuance on the blockchain in the form of NFT to issue an NFT.

Description

A system that provides creative trading services based on NFT {SYSTEM OF PROVIDING SERVICE FOR TRANSACTING CREATION BASED ON NON-FUNGIBLE TOKEN}

The present invention relates to a system that provides a trading service for creations based on NFTs, and more particularly, to collect evaluation information for each of a plurality of creations posted as a posting request, and to select creations whose evaluation information satisfies NFT issuance conditions. It relates to a system that provides creation trading services based on NFTs that select creations to be issued and issue NFTs.

Conventional creation trading technology using a block chain simply provides the time of creation of a creation recorded on the block chain, but has not been able to prove that the creation is the original creation of the first registrant.

Accordingly, a solution for proving that a registered creation is an original creation and a technology for supporting copyright management and transaction of a registered creation by the solution are required.

On the other hand, a blockchain-based NFT (Non-Fungible Token) is a type of token circulated on a blockchain. Each token has a unique value and cannot be replaced with other tokens. Authenticity and proof of ownership are important for paintings and music , is applied to the field of content such as video.

As NFTs grow, the trading volume and usage of coins also increase, and the contribution of NFTs to the cryptocurrency industry is great.

On the other hand, the matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art. will be.

Korean Patent Registration No. 10-2340588

The present invention posts a plurality of creations requested to be posted, collects evaluation information for the plurality of posted creations, and selects creations whose collected evaluation information meets the NFT issuance conditions as NFT publication target creations to issue NFTs. We want to provide a system that provides creative trading services based on NFTs that can be used.

The present invention provides a system that provides a creation trading service based on NFTs that can record the information of selected creations to be issued NFTs in the form of NFTs on a blockchain to issue NFTs and register the issued NFTs in the NFT transaction list. want to do

In the present invention, if the creation application type information of the creation is the same as the reference application type information, it is determined that the creation satisfies the NFT issuance condition, the creation is selected as an NFT publication target creation, and the NFT is issued based on the NFT. We intend to provide a system that provides creative trading services.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

The present invention for solving the above technical problem relates to a system for providing a creation transaction service based on NFT (Non-Fungible Token), comprising: a plurality of user terminals that perform a posting request for creation; And a server for posting a plurality of creations in response to the posting request and receiving evaluation information for each of the plurality of creations posted, and preferably, the server determines that each of the plurality of creations is included in the evaluation information. Based on whether or not the NFT issuance conditions are met, one or more creations among the plurality of creations are selected as creations to be issued for NFTs, and information on the creations to be issued for NFTs is recorded in the form of NFTs on the blockchain to issue NFTs. there is.

Preferably, the server sorts the evaluation information for each of the plurality of creative works according to a preset sorting criterion, assigns an evaluation rank, and sets the NFT issuance condition for a creation of evaluation information in which the evaluation rank is included in the preset ranking. It is determined that it is satisfied, and the evaluation ranking may select a creation of evaluation information included in a preset ranking as the creation to be issued by the NFT.

Preferably, the server may assign the evaluation ranking to the evaluation information of the remaining creations except for the creations selected as the creations to be issued by the NFT from among the plurality of creations.

Preferably, the server may select the creation to be issued by the NFT for each predetermined selection cycle.

Preferably, the server includes one or more of creation name information, creation description information, creation path information, creation copyright holder information, creation date information, creation size information, creation type information, and creation token ID information of the creation to be issued by the NFT. metadata can be created.

Preferably, the server checks whether generated application type information indicating the type of application used to create the creative work is the same as standard application type information, and if the generated application type information is identical to the standard application type information, the corresponding It can be determined that the creation satisfies the above NFT issuance conditions.

Preferably, the server may register the issued NFT in the NFT transaction list.

According to the present invention, a plurality of creations requested to be posted are posted, evaluation information on the plurality of posted creations is collected, and creations for which the collected evaluation information satisfies the NFT issuance conditions are selected as creations subject to NFT publication, and NFTs are issued. By issuing, NFTs can be issued for highly valuable creations.

The present invention records the information of the selected creation to be issued NFT in the form of an NFT on the blockchain, issues the NFT, and registers the issued NFT in the NFT transaction list, thereby omitting the creation of the creator's virtual wallet and payment of the NFT issuance fee. convenience can be improved.

In the present invention, if the creation application type information of the creation is the same as the reference application type information, the creation is determined to satisfy the NFT issuance condition, the creation is selected as a creation subject to NFT publication, and the original author is confirmed by issuing the NFT. NFTs can be issued for creations.

1 is a diagram illustrating a system for providing a creation trading service based on NFTs according to an embodiment of the present invention.
2 is a diagram for explaining a process in which a user terminal of a creation transaction service posts a creation based on an NFT according to an embodiment of the present invention.
3 is a configuration diagram of a server of a system that provides a creation trading service based on NFTs according to an embodiment of the present invention.
4 is a diagram for explaining a process of allocating evaluation rankings by a server of a system that provides a creation trading service based on NFTs according to an embodiment of the present invention.
5 is a diagram for explaining a process of issuing an NFT by a server of a creation trading service based on the NFT according to another embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that this is not intended to limit the present invention to specific embodiments, and includes various modifications, equivalents, and/or alternatives of the embodiments of the present invention. In connection with the description of the drawings, like reference numerals may be used for like elements.

In this document, expressions such as "has", "may have", "includes", or "may include" refer to the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

In this document, expressions such as "A or B", "at least one of A and/and B", or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) may refer to all cases including at least one A and at least one B.

Expressions such as "first", "second", "first", or "second" used in this document may modify various components, regardless of order and/or importance, and refer to a component as It is used only to distinguish it from other components and does not limit the corresponding components. For example, a first wearer device and a second wearer device may represent different wearer devices, regardless of order or importance. For example, without departing from the scope of rights described in this document, a first element may be called a second element, and similarly, the second element may also be renamed to the first element.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or connected through another component (eg, a third component). On the other hand, when an element (e.g., a first element) is referred to as being “directly connected” or “directly connected” to another element (e.g., a second element), that element and the above It may be understood that other components (eg, a third component) do not exist between the other components.

As used in this document, the expression "configured to" means, depending on the situation, e.g., "suitable for", "having the capacity to" )", "designed to", "adapted to", "made to", or "capable of" . The term "configured (or set) to" may not necessarily mean only "specifically designed to" hardware. Instead, in some contexts, the phrase "a device configured to" may mean that the device is "capable of" in conjunction with other devices or components. For example, the phrase "a processor configured (or set) to perform A, B, and C" may include a dedicated processor (e.g., embedded processor) to perform those operations, or by executing one or more software programs stored in memory. , may mean a general-purpose processor (eg, CPU or application processor) capable of performing corresponding operations.

Terms used in this document are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Expressions in the singular number may include the first through third expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field described in this document. Among the terms used in this document, terms defined in general dictionaries may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in this document, in an ideal or excessively formal meaning. not interpreted In some cases, even terms defined in this document cannot be interpreted to exclude the embodiments of this document.

1 is a diagram illustrating a system for providing a creation trading service based on NFTs according to an embodiment of the present invention.

Referring to FIG. 1 , a system for providing a creation trading service based on NFTs according to an embodiment of the present invention may include a server 100 and a plurality of user terminals 200 .

The server 100 is an electronic device controlled by a user, and may communicate with a plurality of user terminals 200 that perform posting requests for creative works.

The server 100 may transmit, receive, and manage information and data required to operate and manage the social media platform.

Here, the social media platform may be a platform on which creations on a specific subject are posted by users.

At this time, the user may request to post a creative work on the social media platform provided by the server 100 through the user terminal 200, and may be a registered member of the social media platform.

Accordingly, the server 100 may post the creative work requested from the user terminal 200 to the social media platform.

In one embodiment, the electronic device includes a smartphone, a tablet personal computer, a mobile phone, a video phone, an e-book reader, a desktop PC, and a laptop. PC (laptop PC), netbook computer, workstation, server, PDA (personal digital assistant), PMP (portable multimedia player), MP3 player, mobile medical device, camera, or wearable device ), and at least one of AI speakers.

2 is a diagram for explaining a process in which a user terminal of a creation transaction service posts a creation based on an NFT according to an embodiment of the present invention.

Referring further to FIG. 2 , the plurality of user terminals 200 may be electronic devices controlled by users, and in order to receive the service of the social media platform operated through the server 100, the social media platform provides Applications can be installed.

The plurality of user terminals 200 may generate creations C according to user control through applications, and transmit a posting request requesting posting of the created creations to the server 100 .

Here, the types of creative works such as photos, videos, and texts may not be determined. Preferably, in the present invention, the creation may be a photo whose size is determined and a video whose playback time is within a preset time.

Accordingly, the application may have a creation creation function so that the user can create a creation.

For example, the applications installed in the plurality of user terminals 200 may have a photo taking function so that the user can create a creative work that is a photo, or a video shooting function that allows the user to create a creative work that is a video.

Meanwhile, the plurality of user terminals 200 may display creations of other users on the screen so that users can view creations created and posted by other user terminals 200 through applications.

In addition, the plurality of user terminals 200 may receive or obtain user evaluation information for creations of other users from the user and transmit the information to the server 100 .

Here, the evaluation information may be information indicating a user's liking for another user's creative work or information indicating the number of times the creative work has been viewed by other users.

The server 100 may post a plurality of creations in response to the above-described posting request and receive evaluation information for each of the plurality of posted creations.

At this time, the server 100 may match the received evaluation information to the posted creative work.

Thereafter, the server 100 may select one or more creations among the plurality of creations as NFT publication target creations based on whether each of the plurality of creations satisfies the NFT issuance condition.

Finally, the server 10 may issue an NFT by recording information on a creation subject to NFT publication in the form of an NFT on a blockchain.

Here, the NFT issuance condition may be a condition indicating that the NFT is a creative work having marketability for issuing the NFT.

For example, the NFT issuance condition may be a case in which an evaluation ranking of creations allocated by evaluation information is included in a preset ranking, or a case in which creation application type information of a creation is the same as reference application type information.

4 is a diagram for explaining a process of allocating evaluation rankings by a server of a system that provides a creation trading service based on NFTs according to an embodiment of the present invention.

Referring further to FIG. 4 , the server 100 arranges a plurality of pieces of evaluation information according to a preset sorting criterion and assigns an evaluation rank (C1, ..., C3), and the creation of evaluation information in which the evaluation rank is included in the preset rank. It can be determined that the NFT issuance conditions are satisfied.

In this case, the preset sorting criterion may be different according to the type of evaluation information. If the evaluation information is information indicating a user's liking for creations of other users (eg, the number of likes), a criterion with a large amount of evaluation information may be a predetermined sorting criterion. In addition, if the evaluation information is information indicating the number of times the creative work has been viewed by other users (eg, the number of views), a criterion with a large amount of evaluation information may be a preset sorting criterion.

For example, the server 100 may determine that the NFT issuance condition is satisfied for the creative work corresponding to the evaluation information when the evaluation ranking is included in the preset ranking of 10th.

Thereafter, the server 100 may select creations of evaluation information whose evaluation rankings are included in preset rankings as NFT publication target creations. Here, the preset ranking may be 10th, but the server 100 may reset the preset ranking based on the amount of postings of creations.

Specifically, the server 100 may calculate the selection ranking by applying the selection ratio to the daily average posting amount of creations, and reset the preset ranking to the selection ranking.

For example, if the average number of postings per day is 100,000, and the selection rate is 0.1%, the selection rate can be applied to the amount of postings to calculate the selection ranking as 100, and the preset ranking can be reset to the selection ranking 100th. there is.

On the other hand, the server 100 may select a creation to be issued by the NFT for each preset selection cycle.

Here, the preset selection cycle may be one week or one month, but the server 100 may reset the preset selection cycle based on the amount of postings of creations.

On the other hand, the server 100 may assign evaluation rankings to the evaluation information of the remaining creations except for the creations selected as NFT publication target creations from among the plurality of creations.

That is, the server 100 prevents a situation in which the evaluation information of the creation subject to NFT publication continues to enter the preset ranking, and the evaluation information of the creation subject to NFT publication continues to maintain the status of entering the preset ranking. Creations to be issued can be selected by assigning evaluation rankings to the rest of the creations except for .

Meanwhile, the server 100 may check whether created application type information indicating the type of application used to create a creative work is the same as reference application type information.

Thereafter, the server 100 determines that the creation satisfies the NFT issuance condition if the generated application type information is the same as the reference application type information, and records the information about the creation in the form of NFT on the blockchain to issue the NFT. can

That is, the server 100 selects a creation whose evaluation ranking is within a preset ranking and whose generated application type information is the same as the reference application type information as a creation to be issued as an NFT, and records information about the creation in the form of NFT on the blockchain. NFTs can be issued.

Through this, the server 100 may issue the NFT by selecting only the original work created by the user, the original user, as an NFT publication target creation only for the creative work created using the application.

5 is a diagram for explaining a process of issuing an NFT by a server of a creation trading service based on the NFT according to another embodiment of the present invention.

5, in the process of issuing an NFT by recording information about a creation in the form of an NFT on a blockchain, the server 100 records creation name information, creation description information, creation path information, creation copyright holder of a creation subject to NFT publication. Metadata (NFT2) including one or more of information, creation date information, creation size information, creation type information, and creation token ID information may be generated.

Here, the creation name information is information indicating a creation, and may be information received by the server 100 after being input to the user terminal 200 and determined by a user requesting posting of the creation.

Here, the creation description information is information indicating a description of the contents of the creation, and may be information received by the server 100 after being input to the user terminal 200 and determined by the user requesting the posting of the creation.

Here, the creation path information may be information (NFT1) indicating a path on which the corresponding creation is posted on the social media platform operated by the server 100 .

Here, the creative work copyright holder information may be information representing a user who requested posting of a creative work. For example, creative work copyright holder information may be a user ID of a user registered on a social media platform.

Creation token ID information may be information (NFT3) indicating a serial number of a corresponding NFT among one or more NFTs issued from a creation.

On the other hand, note that the server 100 is not limited to the blockchain network type and token generation standard type of the issued NFT as long as the NFT is issued for the creation.

Preferably, the server 100 may issue an NFT by recording information about a creation in the form of an NFT on a blockchain using ERC-721 or ERC-1155 of the Ethereum blockchain network.

On the other hand, according to another embodiment, when the server 100 issues an NFT by recording information on a creation subject to NFT issuance in the form of an NFT on a blockchain, it can be issued as a multi-token NFT with an assigned number.

That is, the server 100 may issue a plurality of NFTs having the same metadata in addition to the assigned information.

At this time, the server 100 may set issue number information indicating the number of issued NFTs.

Specifically, the server 100 may set issue number information based on evaluation information.

More specifically, the server 100 calculates the ratio of the evaluation ranking of the creation to be issued to the NFT to the evaluation ranking of all creations posted on the social media platform, and the smaller the calculated ratio, the smaller the number indicated by the number of publication information. Issue number information can be set.

That is, the server 100 may preserve the value of the corresponding NFT by setting the number of issued NFTs to be small as the creations of which other users' interest and evaluation are high.

Meanwhile, the server 100 may register the issued NFT in the NFT transaction list.

Here, the NFT transaction list may be a transaction list managed by the NFT transaction platform.

That is, the server 100 may register the issued NFT on the NFT trading platform so that the NFT is traded by other people as well as users of the social media platform.

At this time, the server 100 may register the issued NFT in the NFT transaction list in response to the NFT registration procedure determined by the NFT transaction platform that manages the NFT transaction list.

Here, the NFT trading platform may refer to a platform where NFTs are registered by users of the NFT trading platform and NFTs are traded. For example, the NFT trading platform may be any one of Opensea and Mintable.

Through this, users who are creators and original authors can issue and trade NFTs without creating a crypto wallet or paying the fee (gas fee) required for issuing NFTs in order to issue NFTs for their creations.

On the other hand, when the server 100 according to another embodiment outputs the NFT publication target creation corresponding to the issued NFT to the screen on the user terminal 200 after NFT issuance, the NFT publication information together with the NFT publication target creation NFT issuance information may be generated and transmitted to the user terminal 200 so as to be output.

Here, the NFT issuance information may include information indicating that an NFT is issued for an NFT publication target creation displayed on the screen, current NFT market price information, and information indicating an NFT trading platform capable of trading the NFT.

3 is a configuration diagram of a server 100 according to an embodiment of the present invention.

As shown in FIG. 3 , the server 100 may include a memory 110 , a communication unit 120 and a processor 130 .

The memory 110 may store various programs and data necessary for the operation of the server 100 . The memory 110 may be implemented as a non-volatile memory 110, a volatile memory 110, a flash-memory, a hard disk drive (HDD), or a solid state drive (SSD).

The communication unit 120 may communicate with an external device. In particular, the communication unit 120 may include various communication chips such as a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, an NFC chip, and a Bluetooth Low Energy (BLE) chip. At this time, the Wi-Fi chip, the Bluetooth chip, and the NFC chip perform communication in a LAN method, a WiFi method, a Bluetooth method, and an NFC method, respectively. In the case of using a Wi-Fi chip or a Bluetooth chip, various connection information such as an SSID and a session key is first transmitted and received, and various information can be transmitted and received after communication is connected using this. A wireless communication chip refers to a chip that is updated according to various communication standards such as IEEE, ZigBee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), 5G (5th Generation), etc. to perform communication. do.

The processor 130 may control overall operations of the server 100 using various programs stored in the memory 110 . The processor 130 may include a RAM, a ROM, a graphic processing unit, a main CPU, first through n interfaces, and a bus. At this time, the RAM, ROM, graphic processing unit, main CPU, first to n interfaces, etc. may be connected to each other through a bus.

RAM stores O/S and application programs. Specifically, when the server 100 is booted, O/S is stored in RAM, and various application data selected by the user may be stored in RAM.

The ROM stores instruction sets for system booting. When a turn-on command is input and power is supplied, the main CPU copies the O/S stored in the memory 110 to the RAM according to the command stored in the ROM, and executes the O/S to boot the system. When booting is completed, the main CPU copies various application programs stored in the memory 110 to RAM, and executes the application programs copied to RAM to perform various operations.

The graphic processing unit uses a calculation unit (not shown) and a rendering unit (not shown) to create a screen including various objects such as items, images, and text. Here, the calculation unit may be configured to calculate attribute values such as coordinate values, shape, size, color, etc. of each object to be displayed according to the layout of the screen by using a control command received from the input unit. And, the rendering unit may be configured to generate screens of various layouts including objects based on the attribute values calculated by the calculation unit. The screen created by the rendering unit may be displayed within the display area of the display.

The main CPU accesses the memory 110 and performs booting using the OS stored in the memory 110 . And, the main CPU performs various operations using various programs, contents, data, etc. stored in the memory 110 .

The first through n interfaces are connected to the various components described above. One of the first through n interfaces may be a network interface connected to an external device through a network.

Meanwhile, the processor 130 may include one or more cores (not shown) and a graphic processor (not shown) and/or a connection path (eg, a bus) for transmitting and receiving signals to and from other components. can

Processor 130 according to one embodiment performs a method described in connection with the present invention by executing one or more instructions stored in memory 110 .

For example, the processor 130 acquires new training data by executing one or more instructions stored in the memory 110, performs a test on the acquired new training data using a learned model, and performs the test As a result, first training data for which the labeled information is obtained with an accuracy equal to or higher than a predetermined first reference value is extracted, the extracted first training data is deleted from the new training data, and the new training data from which the extracted training data is deleted The learned model may be retrained using the training data.

Meanwhile, the processor 130 includes RAM (Random Access Memory, not shown) and ROM (Read-Only Memory) temporarily and/or permanently storing signals (or data) processed in the processor 130. , not shown) may be further included. In addition, the processor 130 may be implemented in the form of a system on chip (SoC) including at least one of a graphics processing unit, RAM, and ROM.

The memory 110 may store programs (one or more instructions) for processing and control of the processor 130 . Programs stored in the memory 110 may be divided into a plurality of modules according to functions.

So far, the present invention has been mainly looked at with respect to preferred embodiments. Those skilled in the art to which the present invention belongs will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from a descriptive point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope should be construed as being included in the present invention.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those skilled in the art to which the present invention belongs Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

100: server
200: user terminal

Claims (7)

In a system that provides creative trading services based on NFT (Non-Fungible Token),
A plurality of user terminals that perform a posting request for creative works; and
A server for posting a plurality of creations in response to the posting request and receiving evaluation information for each of the plurality of posted creations;
The server
Based on whether or not each of the plurality of creations satisfies the NFT issuance condition according to the evaluation information, one or more creations among the plurality of creations are selected as creations to be issued by NFT, and information on the creations to be issued by NFT is in the form of an NFT. Records on the blockchain to issue NFTs,
The server
The evaluation information for each of the plurality of creative works is sorted according to a predetermined sorting criterion to assign an evaluation ranking. is the set sorting criterion,
The server
It is determined that the creation of evaluation information whose evaluation ranking is included in a preset ranking meets the NFT issuance condition, and a creation of evaluation information whose evaluation ranking is included within a preset ranking is selected as the creation to be issued by the NFT, ,
The server
The preset ranking is reset based on the posting volume of creative works to be posted, but the selection ranking is calculated by applying a selection ratio to the daily average posting volume of creative postings, and the selection ranking is reset to the preset ranking,
The server
Based on the evaluation information, issue number information indicating the number of issued NFTs is set, but the ratio of the evaluation rank of the creations to be issued to the NFTs compared to the evaluation ranks of all published creations is calculated, and the smaller the calculated ratio, the more issuance. Characterized in that the issue number information is set so that the number indicated by the number information is reduced
A system that provides creative trading services based on NFT.
delete According to claim 1,
The server
Characterized in that the evaluation ranking is assigned to the evaluation information of the remaining creations excluding the creations selected as the creations to be issued by the NFT among the plurality of creations
A system that provides creative trading services based on NFT.
According to claim 1,
The server
Characterized in that the creation to be issued by the NFT is selected for each preset selection cycle.
A system that provides creative trading services based on NFT.
◈Claim 5 was abandoned when the registration fee was paid.◈ According to claim 1,
The server
Generating metadata including one or more of creation name information, creation description information, creation path information, creation copyright holder information, creation date information, creation size information, creation type information, and creation token ID information of the creation to be issued by the NFT characterized by
A system that provides creative trading services based on NFT.
According to claim 1,
The server
It is checked whether the created application type information representing the type of application used to create the creation is the same as the standard application type information, and if the created application type information is the same as the standard application type information, the creation is the NFT issuance condition. characterized in that it is judged to satisfy
A system that provides creative trading services based on NFT.
According to claim 1,
The server
Characterized in that the issued NFT is registered in the NFT transaction list
A system that provides creative trading services based on NFT.

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