KR102524660B1 - Method and apparatus for providing nft-basedd transaction service - Google Patents

Abstract

According to various embodiments, an artwork transaction platform providing server which provides a transaction service for an artwork of an artist using a blockchain comprises: a data management unit which obtains artwork information about an artwork from an artist terminal of the artist; an artwork tokenization unit which obtains an artwork registration request signal from the artist terminal and generates at least one first non-fungible token (NFT) corresponding to the artwork based on a first digital file for the artwork; an artwork value calculation unit which calculates the artist's initial transaction price; a transaction brokerage unit which brokers a transaction for the first NFT created through a blockchain network at the initial transaction price; and a service operation unit which provides royalties to the artist.

Description

Method and device for providing NFT-based artwork trading service {METHOD AND APPARATUS FOR PROVIDING NFT-BASEDD TRANSACTION SERVICE}

The present invention relates to a method and apparatus for providing a blockchain network-based work trading service. More specifically, it relates to a method and apparatus for tokenizing an artist's work and providing a NFT-based work trading service according to the tokenization.

In order to distribute the goods called art, it is necessary to have an artist who supplies the work and a buyer who demands the work. The generally accepted real-life transaction means a transaction between an artist and a buyer who purchases it offline, or a transaction made through communication or online ordering of works. However, with the development of communication or digital technology, there is a supply of digital works as well as physical works, and accordingly, the demand for digital works is increasing. However, general digital works have many problems such as counterfeiting, alteration, and copyright infringement. Therefore, it is necessary to devise a digital artwork trading platform using the recently developing block chain technology.

A blockchain represents a digital ledger in which the details of transactions occurring between users are shared and stored among network members. The transaction details that occur between users during a certain period of time are confirmed through the agreement of more than half of the users, and the confirmed transaction details are grouped into one block and stored in the blockchain. In order to change the transaction details included in a block linked to the block chain, consensus of more than half of users must be obtained again for the block and all blocks linked after the block, so data stored in the block chain cannot be forged or tampered with in practice. impossible. As such, the transaction details stored in the blockchain cannot be arbitrarily changed, so the reliability of the data stored in the blockchain is very high.

Meanwhile, in general, blockchain systems manage assets in the form of tokens created through smart contracts. Tokens can be divided into Fungible Tokens that can be exchanged with other tokens of the same type and Non-Fungible Tokens (NFTs) that cannot be exchanged with other tokens because each token has a unique ID.

In this way, since NFTs have the uniqueness of being impossible to exchange with other tokens, they can be used as a means of safely guaranteeing the ownership of a specific asset. Therefore, it is necessary to provide a trading platform for works that can be used by a large number of consumers and suppliers using the characteristics of these NFTs.

Registered Patent No. 10-2343025 (2021.12.24., published) Registered Patent No. 10-2388233 (2022.04.18., published) Registered Patent No. 10-2406172 (2022.06.10., published) Registered Patent No. 10-2191895 (2020.12.16., published)

An object of the present invention for solving the above problems is to provide a work trading platform that allows the artist's work to be traded based on NFT.

According to various embodiments, a work trading platform providing server that provides a transaction service for an artist's work using a block chain includes a data management unit that obtains work information of the work from the artist's terminal; a work tokenization unit that obtains a work registration request signal from the artist terminal and generates at least one first NFT (Non-Fungible Token) corresponding to the work based on a first digital file for the work; a work value calculation unit that calculates an initial transaction price of the artist; A transaction intermediary unit for mediating a transaction for the first NFT generated through the blockchain network at the initial transaction price; and a service operation unit providing a royalty to the writer.

According to various embodiments, the work tokenization unit generates at least one first NFT corresponding to the first digital file based on the number of divisions of ownership of the work, and the initial owner of the first NFT. ID is linked to the artist ID, the digital file for the work included in the work registration request signal is stored in an external storage server that exists outside the blockchain network, and metadata including the work information is stored. After creation, metadata can be stored in the external storage server.

According to various embodiments, the transaction intermediary unit obtains a purchase request signal including information on the number of the first NFTs and purchase price information per unit for the first NFTs from a first user terminal of a first user, and the author A sales request signal including information on the number of the first NFTs and sales price information per unit of the first NFT is obtained from the terminal, the sales volume of the artist and the sales price match the purchase amount of the buyer, and the purchase price and the sales price of the first NFT. When the sales prices match, a transaction between the author and the first user may be brokered for the first NFT corresponding to the number information.

According to various embodiments, the transaction intermediary unit links the first NFT to the ID of the first user, and records the unique digital work ID code and the new unique owner ID code in a new transaction block. Transaction details can be shared with multiple peers included in the blockchain network by broadcasting to the blockchain network.

According to various embodiments, the work value calculation unit obtains information on an initial desired price for the work through the artist terminal, determines an artist value type to which the artist belongs, and determines the artist value type. A price obtained by averaging the transaction prices of each registered work of the same type of artist within the company is determined as an initial appropriate price, and a first initial transaction price of the work may be determined based on the initial desired price and the initial appropriate price. .

According to various embodiments of the present disclosure, a method for providing a transaction service for an artist's work using a block chain may include obtaining work information of the work from the artist's terminal; obtaining a work registration request signal from the artist terminal; Generating at least one first NFT (Non-Fungible Token) corresponding to the work based on the first digital file for the work; Calculating an initial transaction price of the artist; Brokering a transaction for a first NFT generated through a blockchain network at the initial transaction price; and providing royalty to the writer.

According to various embodiments, a non-transitory recording medium on which a program for executing the method is recorded and readable by a computer may be included.

According to various embodiments, there may be a computer program recorded on a non-transitory recording medium in order to execute the method in the work trading platform providing server.

According to various embodiments, a system for providing a work trading platform that provides a transaction service for an artist's work using a block chain includes an artist terminal that transmits a work registration request signal including the number of divisions of ownership of the artist's work. ; and a work trading platform providing server interworking with the artist terminal and servicing a collaborative work between a user and an artist based on the work registration request signal. The integrated management server may include: a data management unit that obtains work information of the work from the artist's terminal; a work tokenization unit that obtains a work registration request signal from the artist terminal and generates at least one first NFT (Non-Fungible Token) corresponding to the work based on a first digital file for the work; a work value calculation unit that calculates an initial transaction price of the artist; A transaction intermediary unit for mediating a transaction for the first NFT generated through the blockchain network at the initial transaction price; and a service operation unit providing a royalty to the writer.

According to various embodiments disclosed in this document, a new market can be formed by tokenizing the works of artists and enabling online transactions.

In addition, according to various embodiments, the artist's work can be tokenized based on NFT so that those who own the NFT can have sole or joint ownership of unique ownership that cannot be counterfeited or duplicated.

In addition, according to various embodiments, by evaluating the value of not only the works of professional writers, but also the works of new writers or ordinary people, and allowing them to be traded according to the evaluated value, transaction of works is more active and various people can participate. We can provide a platform that allows you to

In addition to this, various effects identified directly or indirectly through this document may be provided.

1 is a diagram illustrating a system for providing a work trading platform according to an embodiment.
2 is a diagram for explaining a blockchain network according to an embodiment.
Figure 3 is a diagram showing the main components of the work trading platform providing server.
4 is a diagram showing a process in which an artist's work is tokenized and distributed.
5 is a diagram illustrating an embodiment of a platform or homepage provided by a server.
6 is a diagram showing the hardware configuration of the server according to FIG. 1;
7 is a diagram illustrating a wireless communication system that can be applied in a communication process according to an embodiment of the present invention.
8 is a diagram illustrating a base station in the wireless communication system according to FIG. 7 .
9 is a diagram illustrating a terminal in the wireless communication system according to FIG. 7 .
10 is a diagram illustrating a communication interface in the wireless communication system according to FIG. 7 .

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing a work trading platform providing system 10 according to an embodiment. Referring to FIG. 1 , the work trading platform providing system 10 may include a work trading platform providing server 100 and user terminals 201 , 202 , 203 , 204 , and the like. Operations described below may be performed or implemented through a platform (eg, a web page and/or application) controlled by the work trading platform providing server 100 . In other words, in the work trading platform providing server 100, the user accesses the work trading platform providing server 100 through the network using the user terminals 201, 202, 203, and 204, inputs various information, and registers. It is possible to provide a web site capable of performing and outputting, and by being installed and executed in the user terminals (201, 202, 203, 204), it is possible to provide an application capable of inputting, registering, and outputting various information.

The work trading platform providing server 100 uses a blockchain network-based trading system so that works (eg, art, digital works) or non-fungible tokens (hereinafter NFTs, Non-Fungible Tokens) corresponding to works can be traded. can do. The work trading platform providing server 100 may obtain work information from the artist terminal 201, generate an NFT based on the obtained work information, and generate a block based on the generated NFT. The work trading platform providing server 100 may mediate a transaction so that NFTs can be traded between the seller terminal 202 and the buyer terminal 203 .

The work trading platform providing server 100 may create a smart contract capable of issuing an NFT having a unique token ID for each work and deploy it to a blockchain network in advance. A smart contract is a code called by an application program inside a blockchain network, written in languages such as Go, Node.js, and Java. It manages access to and modification of a series of key-value pairs of the entire state (hereinafter referred to as the World State), also known as chaincode. The world state is a database representing the latest values of all keys included in the chain transaction log. The chain code executes transactions (transactions) based on this. A transaction is a unit of work performed to change the state of a database.

NFT (Non-Fungible Token) means that ownership of digital files such as JPG, GIF, video, etc. (hereinafter referred to as 'token') is stored on the blockchain to permanently preserve it in a state that cannot be counterfeited or tampered with, and the ownership is decentralized. It means that it is in a form that can be checked.

OSN (Ordering Service Node, Orderer) creates the final block using verified transactions. According to the consensus algorithm (Kafka), transactions (Transitional Proposals) from clients are ordered and delivered to peer nodes. This ensures that transactions are safely delivered.

A client is a node that accesses the blockchain and creates transactions to be sent to peers. It is usually in the form of an application. In the present invention, applications exist in the form of web apps and mobile apps. It sends it to peer nodes and endosers, and creates a transaction proposal and sends it to OSN.

A peer is the most basic node in a fabric with a ledger. It has a smart contract, verifies and propagates the transaction requested to it.

Anchor is a peer that enables discovery of other peers belonging to an organization and enables peer-to-peer gossip.

An Endoser is a peer on which a smart contract is installed. It plays a role in simulating the transaction delivered in the form of a transaction proposal by executing a smart contract. However, Endozer does not directly update the ledger.

A committer is a peer that updates the ledger when a transaction is valid.

The user terminal 200 may include an artist terminal 201, a seller terminal 202, a buyer terminal 203, and the like, and the writer terminal 201 is a terminal of an artist who created a work, and information about the work from the artist Information may be input and provided to the work trading platform providing server 100).

The user terminal 200 includes a communicable desktop computer, a laptop computer, a notebook, a smart phone, a tablet PC, a mobile phone, and a smart watch. (smart watch), smart glass, e-book reader, PMP (portable multimedia player), portable game console, navigation device, digital camera, DMB (digital multimedia broadcasting) player, digital voice It may be a digital audio recorder, a digital audio player, a digital video recorder, a digital video player, and a personal digital assistant (PDA).

The work trading platform providing server 100 and the user terminals 201, 202, 203, and 204 are connected to a communication network, respectively, and may transmit and receive data between them through the communication network. For example, communication networks include Local Area Network (LAN), Metropolitan Area Network (MAN), Global System for Mobile Network (GSM), Enhanced Data GSM Environment (EDGE), High Speed Downlink Packet Access (HSDPA), and W-CDMA. (Wideband Code Division Multiple Access), CDMA (Code Division Multiple Access), TDMA (Time Division Multiple Access), Bluetooth, Zigbee, Wi-Fi, Voice over Internet Protocol (VoIP) , LTE Advanced, IEEE802.16m, WirelessMAN-Advanced, HSPA+, 3GPP Long Term Evolution (LTE), Mobile WiMAX (IEEE 802.16e), UMB (formerly EV-DO Rev. C), Flash-OFDM, iBurst and MBWA (IEEE Various types of wired or wireless networks may be used, such as 802.20) systems, HIPERMAN, Beam-Division Multiple Access (BDMA), World Interoperability for Microwave Access (Wi-MAX), and 5G.

2 is a diagram for explaining a blockchain network according to an embodiment.

Blockchain generates online transaction information in blocks, connects the generated blocks, and distributes data to the personal digital devices of participants (peers) rather than the central management server in a peer-to-peer (P2P) network distribution environment. It is a method of jointly managing data by storing and storing data.

Specifically, the basic structure of a block chain is in the form of a collection of blocks connected one after another (chain), and is based on a peer-to-peer (P2P) method. In addition, over a certain period of time, more than half of the participants exchange transaction details with each other to confirm and approve them, and only the transaction details that have been agreed with digital signatures are made into one block. Then, the newly created block is connected to the previous block chain, and a copy is made and distributed and stored in the user terminals (i.e., node 11) of each participant.

Therefore, when using a blockchain, there is no need to separately manage a database for transaction ledgers, which reduces management costs and improves the safety of transactions because hacking is difficult due to distributed processing. The blockchain method can be applied to transactions such as stocks and real estate, and can be used in various fields related to security, such as land rights transfer or home front key.

The blockchain network 20 is composed of a public blockchain network, a private blockchain network, and/or a hybrid blockchain network including the public blockchain network and the private blockchain network at the same time. It can be. Therefore, throughout this specification, node 11 may be a node constituting one of a public blockchain network and a private blockchain network, or a node constituting a private blockchain network as well as a public blockchain network.

In addition, the nodes constituting the blockchain network 20 perform distributed cloud computing to provide cloud services, and, if necessary, record information necessary for cloud services as transactions in the ledger to create a block or block chain corresponding to the ledger. can create Therefore, information necessary for cloud services can be trusted by a consensus algorithm based on a blockchain, and some nodes selected or agreed upon among nodes can share or distribute and store information necessary for cloud services.

In general, public blockchain networks can secure data transparency through decentralization among all nodes, but they have the disadvantage of being slow, while private blockchain networks aim for fast and high performance, but configure the network only with authorized nodes, so the number of nodes is difficult to greatly expand. The blockchain network 20 according to the present invention may employ a hybrid blockchain network to ensure fast performance, decentralization, and scalability.

In the present invention, the public blockchain network may refer to an internal public blockchain network composed of nodes managed by the work trading platform providing server 100. Here, the internal public blockchain network is a typical external public blockchain such as Bitcoin, Ethereum, EOS, etc. through a blockchain API broker implemented through a private blockchain network. configured to communicate with the network. The private blockchain network may be a blockchain network composed of only nodes authorized by the work trading platform providing server 100 .

Private blockchain networks are also called private blockchains, closed blockchains, permissioned blockchains, enterprise blockchains, or enterprise blockchains, and transaction history and actions other than authorized participants are not shared and cannot be traced In order to participate as a node 11 in a private blockchain network, only participants authorized by a specific subject can participate as a node 11 and create a block.

In one embodiment, the private blockchain network is managed by the work trading platform providing server 100, and the user terminal needs permission from the work trading platform providing server 100 to participate as a node 11 of the private blockchain network. there is.

The private blockchain network of one embodiment may support server redundancy (HA, High Availability) using Hyperledger Fabric. For example, the work trading platform providing server 100 replicates and stores the information distributed and stored by some of the nodes 11 constituting the private blockchain network to other nodes 11, and the specific node 11 It is possible to control other nodes 11 to take the place of at least some of the roles assigned for the cloud service.

A shared ledger managed as a blockchain through a private blockchain network includes world state, a database that records ledger states at a specific point in time, and transaction log, which records information on currently generated transactions. ) may be included. Information recorded in the transaction log can be updated to the world state. In particular, the shared ledger further includes a data area that can replace the world state, and the data area can record before and after the state change of the world state. When the chaincode is executed, it can only interact with the world state to reference and change the record of the world state.

An individual shared ledger is created and managed for each channel configured in the private blockchain network, and the node 11 can keep a copy of the shared ledger for the channels it can access.

The nodes 11 of the private blockchain network can reach a consensus by verifying the order and result of transactions for constructing a block according to a pre-specified policy criterion. At this time, the nodes 11 generate blocks by verifying the validity, order, and result of each transaction, and refer to the world state before constructing a block chain by adding the generated blocks to the shared ledger. You can check the version of the shared ledger agreed between them.

On the other hand, at least some of the nodes 11 constituting the private blockchain network 20 are verified by the work trading platform providing server 100 (distinct from verification for participation in the private blockchain network 20, and the node ( As a node that has been verified (can be determined depending on the security level, computing resources, etc.) of 11), all events and transactions occurring in the private blockchain network 20 are transmitted and received and shared with each other, and at least the rest of the nodes 11 As a node that has not been verified by the work trading platform providing server 100, it can perform limited event processing and REST API service management.

Referring to FIG. 2 , the public blockchain network of one embodiment may be composed of a plurality of nodes 11 capable of communicating with each other through a communication network.

In one embodiment, a block chain is implemented with a plurality of nodes 11 as participants, and information distributed and stored in each of the plurality of nodes 11 may be a hash value of a block.

The plurality of nodes 11 may share the information by always maintaining the latest version of information distributed and stored in each of the plurality of nodes 11 .

Each of the plurality of nodes 11 is a mobile phone, smart phone, PDA (Personal Digital Assistant), PMP (Portable Multimedia Player), all kinds of handheld that can be connected to an external server through a wireless communication network, such as a tablet PC In addition, it may include a communication device that can be connected to an external server through a network, such as a desktop PC, a tablet PC, a laptop PC, and an IPTV including a set-top box.

As described above, each of the plurality of nodes 11 may be implemented in the form of a terminal, but is not limited thereto and may be implemented in the form of a server operated by a specific company.

A node implemented in the form of a terminal among a plurality of nodes 11 can store information shared on the blockchain in a secure area of memory, and a node implemented in the form of a server among the plurality of nodes 11 shares information shared on the blockchain. information can be stored in a secure area of the database.

That is, in one embodiment, a plurality of nodes 11 are configured based on various types of block chains, such as a block chain in which participants consist only of terminals, a block chain in which participants consist only of servers, a block chain in which participants consist only of terminals and servers, etc. can do.

A user terminal according to an embodiment participates as one node on a blockchain network, generates a data block, and provides it to a public blockchain network. At this time, at least some of the user terminals may detect forgery of the data block.

3 is a diagram showing the main components of the work trading platform providing server 100 .

The work trading platform providing server 100 may include a data management unit 101, a work tokenization unit 102, a transaction intermediary unit 104, a work value calculation unit 103, and a service operation unit 105.

The data management unit 101 may obtain member information input through a web site provided to the writer terminal 201 , the seller terminal 202 , and the buyer terminal 203 or an installed application. Member information may include at least one of a name, phone number, resident registration number, residence, business address, and the like. Member information of the author may be referred to as author information, member information of the seller may be referred to as seller information, and member information of the buyer may be referred to as buyer information. The data management unit 101 registers a user (eg, a writer) of the writer terminal 201 as a writer member based on the writer information obtained from the writer terminal 201, and based on the seller information obtained from the seller terminal 202. Register the user (eg, seller) of the seller terminal 202 as a seller member, and register the user (eg, buyer) of the buyer terminal 203 as a buyer member based on the buyer information obtained from the buyer terminal 203 can do. The data management unit 101 may list writers, sellers, and buyers registered as members or build a DB.

The data management unit 101 may collect learning data in conjunction with a plurality of writer terminals. The data management unit 101 may acquire learning data by periodically communicating with writer terminals through a wired or wireless network in order to collect learning data from the writer terminals. The learning data may be used to cluster writers registered as members.

The data management unit 101 may obtain work information about a work from the artist terminal 201 . The work information may include a work name, a work period, a digital file for the work, and the like. The digital file for the work may be a digital file such as JPG, GIF, video, etc., and the digital file for the work is not limited thereto and may include various types of files that can be stored digitally. The works may include works by professional writers, works by amateur writers, works by new artists, works by ordinary people, and works by influencers.

The work tokenizing unit 102 may obtain work registration information or a work registration request signal from the artist terminal 201 . The work registration information or work registration request signal may include work information.

The artist terminal 201 may transmit the work registration request signal including the number of divisions for ownership of the work to the work tokenization unit 102 . When the work tokenizing unit 102 receives the registration request signal, at least one NFT corresponding to the work or digital file for the work is divided into the number of divisions for the ownership of the work using the smart contract distributed in the blockchain network. can be created based on In this case, the work tokenization unit 102 may link the initial owner ID of the NFT to the artist ID. At least one NFT has a unique value for the work or the digital file, and when distributed to a plurality of people, it can be understood that the work is jointly owned by the plurality of people.

When the work tokenization unit 102 generates an NFT in response to the work registration request signal, the digital file for the work included in the work registration request signal is stored in an external storage server that exists outside the blockchain network, , After generating metadata including information about the work, the metadata can be stored in the external storage server. The external storage server may be a separate server from the work trading platform providing server 100 . The external storage server may include an InterPlanetary File System (IPFS).

The transaction intermediary unit 104 may enable NFTs corresponding to works to be traded using a blockchain network-based transaction system. In other words, the transaction intermediary unit 104 may mediate the NFT transaction corresponding to the work between the buyer terminal 203 and the seller terminal 202 .

4 is a diagram showing a process in which an artist's work is tokenized and distributed.

The work value calculation unit 103 may determine an initial transaction price of the artist's work. In order to determine the initial transaction price, the work value calculation unit 103 may obtain information on an initial desired price for the work through the artist terminal 203 . The work value calculation unit 103 may determine the artist value type to which the artist belongs, and determine an average price of transaction prices of registered works of the same type of artists within the determined artist value type as an initial appropriate price.

First, the work value calculation unit 103 may determine an artist value type corresponding to each artist by using the learning data. The artist value type is a type in which artists who are predicted to have similar artist values are classified, and can be used as an index for selecting the value of an artist's work. Specifically, the work value calculation unit 103 determines a cluster corresponding to each artist by clustering artists corresponding to each of the learning data, and an artist value type prediction model that determines an artist value type assigned to the determined cluster. can include For example, the author value type prediction model may perform clustering according to a Gaussian Mixture Model (GMM).

The author value type prediction model may include a clustering model that operates based on a Gaussian Mixture Model (GMM). The author value type prediction model may correspond to a kind of source code that implements a Gaussian Mixture Model (GMM) in software or an operation program of the source code. Since each artist has a different number of works submitted, number of works sold, experience of real works (years), experience of digital works (years), and total sales of works, etc., even if one of the several indicators is the same, it can be considered as having the same artist value. can't Therefore, it is necessary to determine the value type of an artist by considering the number of works submitted, the number of works sold, the career of real works, the career of digital works, and the total sales amount of works for each artist.

The author value type prediction model may generate a learning feature vector corresponding to the author using learning data collected for each author. For example, the artist value type prediction model uses learning data collected for each artist to pre-process learning data including the number of works submitted, the number of works sold, experience of real works (years), experience of digital works (years), and total sales of works. can be obtained. The author value type prediction model may generate a learning feature vector corresponding to the author using at least some of the indices included in the obtained preprocessing learning data. For example, the artist value type prediction model may generate a learning feature vector having each of the number of works exhibited, the number of works sold, the experience of real works (years), the experience of digital works (years), and the total sales amount of works as component values. .

The author value type prediction model may classify each of the writers into one of a plurality of clusters using at least one learning feature vector of each of the writers. For example, in the case of a Gaussian Mixture Model (GMM), each of a predetermined K (K is a natural number greater than 1) Gaussian distributions corresponds to a cluster. It may operate to classify writers into one of K Gaussian distributions.

Specifically, in the case of the Gaussian mixture model, the Gaussian distribution having the highest result value of the Gaussian distribution selection function (γ) according to Equation 1 below is selected among K Gaussian distributions using Bayes' theorem, , the selected Gaussian distribution is determined as an artist value type corresponding to the building.

In Equation 1, (γ) is a selection function, x _n is a learning feature vector according to the nth author, and z _nk is a Gaussian mixture model when a learning feature vector is given, k (k is a natural number between 1 and K )th Gaussian distribution is selected, it is 1, otherwise it is a binary variable with a value of 0. In Equation 1, μ and Σ are parameters according to the Gaussian mixture model, and are values determined in advance through a learning process for the Gaussian mixture model. The learning process for determining the parameters according to the Gaussian mixture model can be understood by referring to Christopher Bishop's Pattern Recognition and Machine Learning, 2008.03.18, so a detailed description is omitted.

The work value calculation unit 103 may determine a first initial transaction price of the work based on the initial desired price and the initial appropriate price for the work acquired through the artist terminal 203 . The work value calculation unit 103 may determine the first initial transaction price of the work through Equation 2 below.

In Equation 1, V ₁ is the first initial transaction price of the work, P is the initial desired price obtained through the artist terminal, R is the initial appropriate price, w ₁ is a weight for the initial desired price, w ₂ may mean a weight for the initial fair price, and a may mean the recognition of the artist. Equation 1 includes the purpose of actively accepting the artist's opinion by applying a higher weight to the initial desired price set by the artist as the artist's awareness increases.

The work value calculation unit 103 evaluates the artist's awareness to a value greater than 0 and less than 10 based on the artist's entire career (eg, digital work experience and physical work experience), the number of sales of the artist's work, and the total sales amount of the artist's work. can be determined by

The work value calculation unit 103 tracks the search routes of buyers registered as members, determines the fields of interest of the buyers according to the tracking, and if the artist is an artist belonging to the determined field of interest in works, the works of the artist The initial transaction price of may be determined by applying a preset weight. In other words, if the field of an artist's work is of interest to buyers, a corresponding premium may be applied because there is a high demand.

In addition to the first initial transaction price, the work value calculation unit 103 may determine a second initial transaction price of the work based on the artist's degree of interest in the work of other artists. The work value calculation unit 103 may determine the second initial transaction price of the work through Equation 3 below.

In Equation 3, V ₂ is the second initial transaction price of the work, V ₁ is the first initial transaction price of the work, T is the artist's interest in the work, and C is the artist's total career (years) can do.

The work value calculating unit 103 may calculate the degree of interest of the artist in works of other authors based on the number of times the artist purchases other writers' works, the amount of purchases of the artist's works of other writers, and the like. In other words, if even a new artist has a high degree of interest in another artist's work, it can be interpreted as a favorite of the platform provided through the server 100, so the initial value of the work registered by the new writer who used the platform is related to the interest in the work. It can be calculated higher based on This can be understood as a purpose for writers with short careers for the influx of new writers.

When a plurality of NFTs are generated for the work, the transaction intermediary unit 104 may mediate a transaction so that the plurality of NFTs can be owned by a plurality of people.

The transaction intermediary unit 104 may obtain a purchase request signal including information on the number of NFTs and price information per NFT from the purchaser terminal 203 .

The transaction intermediary unit 104 may calculate the total amount of money based on information on the number of NFTs included in the purchase request signal, and provide information about the total amount of the calculated amount to the buyer terminal 203 . For example, if a buyer wants to purchase 10 works worth 100 million won in which ownership of the works is divided into 1000 pieces, the transaction intermediary unit 104 determines the value of one divided ownership (e.g., NFT). (100,000 won) and the number of divided ownerships to be purchased (10 pieces), the buyer may be guided to pay 1 million won.

The transaction intermediary unit 104 may obtain a sales request signal including information on the number of NFTs and information on the price per NFT from the seller terminal 202 (eg, the writer terminal 201).

The transaction intermediary unit 104 may mediate that the seller's ownership be transferred to the buyer when the seller's sales volume and the sales price match the buyer's purchase amount and the purchase price. The transaction intermediary unit 104 may provide and store information about transfer of ownership to the data management unit 101 . The transaction intermediary unit 104 may perform storage and management of NFT purchase information of buyers and NFT sales information of sellers.

When the sales price obtained from the seller terminal 202 (eg, the writer terminal 201) and the purchase price obtained from the buyer terminal 203 match, the transaction intermediary unit 104 provides information about the matched price and Information on a smaller number of the number sold by the seller and the number purchased by the buyer is transmitted to the seller terminal 202 and the buyer terminal 203, and the NFT corresponding to the price and the number is transmitted to the buyer terminal 203 can be provided to In other words, if a transaction is made for three NFTs, the transaction intermediary unit 104 may link the NFTs corresponding to the number to the buyer ID of the buyer to change ownership of the NFTs on the blockchain network.

The service operation unit 105 generates charts related to real-time transaction details and real-time price changes for works, and transmits the charts related to the generated real-time transaction details and real-time price changes to the artist terminal 201, the seller terminal 202, and / or can be provided to the purchaser terminal 203.

The service operation unit 105 may obtain a work production request signal for a tokenized digital file from a terminal of a user who owns an NFT, and may transmit the obtained production request signal to the artist terminal 201 .

The service operation unit 105 may provide compensation (ie, royalty) to the writer when the NFT is traded. In other words, the artist can earn compensation (i.e., royalty) every time the NFT corresponding to the work is resold, not only when the NFT corresponding to the registered work is sold for the first time.

5 is a diagram illustrating an embodiment of a platform or homepage provided by a server.

Referring to FIG. 5 , a search window may be displayed at the top of the homepage. The user can input the name of the work he/she wants to find, the name of the artist, keywords, etc. through the search window. When a user searches for the name of a work, works including the name of the corresponding work may be displayed or works similar to works including the name of the corresponding work may be displayed. When a user searches for an artist's name, works registered by the corresponding artist may be displayed, works of other artists having a similar reputation as the corresponding artist, or works of other artists having a collaboration history with the corresponding artist may be displayed.

Referring to FIG. 5, it is possible to purchase works registered by other artists, but the user can directly create NFT works. For example, a user can create his/her own NFT work by clicking on an interface called 'create' and using an image file, video file, etc. owned by the user.

Referring to FIG. 5 , an area in which a plurality of works are listed in order of popularity in real time by reflecting users' interests in real time may be displayed. The works displayed in order of real-time popularity may indicate the name of the artist, the name of the work, the price of the work, the number of requested works, and a representative image of the work. The degree of interest of the users may be determined based on at least one of the number of times users request works, the number of times users view works, and the number of times users purchase works.

FIG. 6 is a diagram showing the hardware configuration of the work trading platform providing server 100 according to FIG. 1 .

Referring to FIG. 6, the work trading platform providing server 100 includes at least one processor 110 and instructions instructing the at least one processor 110 to perform at least one operation. It may include a memory to store.

The at least one operation may include at least some of the operations or functions of the above-described work trading platform providing server 100 and may be implemented in the form of instructions and performed by the processor 110 .

Here, the at least one processor 110 may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor for performing methods according to embodiments of the present invention. can Each of the memory 120 and the storage device 160 may include at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory 120 may be one of a read only memory (ROM) and a random access memory (RAM), and the storage device 160 may be a flash-memory. , a hard disk drive (HDD), a solid state drive (SSD), or various memory cards (eg, a micro SD card).

In addition, the work trading platform providing server 100 may include a transceiver 130 that performs communication through a wireless network. In addition, the work trading platform providing server 100 may further include an input interface device 140 , an output interface device 150 , a storage device 160 , and the like. Each component included in the work trading platform providing server 100 is connected by a bus 170 to communicate with each other. In FIG. 5, the work trading platform providing server 100 has been described as an example, but is not limited thereto. For example, a plurality of user terminals may include a component according to FIG. 5 .

7 is a diagram illustrating a wireless communication system that can be applied in a communication process according to an embodiment of the present invention. 8 is a diagram illustrating a base station in the wireless communication system according to FIG. 7 . 9 is a diagram illustrating a terminal in the wireless communication system according to FIG. 7 . 10 is a diagram illustrating a communication interface in the wireless communication system according to FIG. 7 .

Hereinafter, an example of a wireless communication network system supporting communication between the various work trading platform providing server 100 and the terminals 201, 202, 203, and 204 according to the present invention will be described in detail as an example. In the following description, a first node (device) may be an anchor/donor node or a centralized unit (CU) of an anchor/donor node, and a second node (device) may be an anchor/donor node or a distributed unit (DU) of a relay node can be

A base station (BS), terminal, server, etc. may be included as a part of a node using a radio channel in a wireless communication system.

A base station is a terminal and a network infrastructure that provides wireless access to terminals. A base station has a coverage defined as a predetermined geographic area according to a distance over which a signal can be transmitted.

A base station, like a "base station," is referred to as "access point (AP)", "enodeb (eNB)", "5th generation (5G) node", "wireless point", " It may be referred to as a transmission/reception point (TRP).

The base station, the terminal, and the terminal may transmit and receive wireless signals in a millimeter wave (mmWave) band (eg, 28 GHz, 30 GHz, 38 GHz, and 60 GHz). At this time, the base station, the terminal, and the terminal may perform beamforming to improve the channel gain. Beamforming may include transmit beamforming and receive beamforming. That is, the base station, the terminal, and the terminal can give directivity to the transmitted signal and the received signal. To this end, the base station, the terminal, and the terminal may select a serving beam through a beam search procedure or a beam management procedure. After that, communication may be performed using a resource carrying a serving beam and a resource having a quasi co-located relationship.

A first antenna port and a second antenna port are considered quasi-colocated if the large-scale properties of the channel through which the symbol of the first antenna port carries can be inferred from the channel through which the symbol of the second antenna port carries. The large-scale properties may include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters.

Hereinafter, a base station in the wireless communication system described above is exemplified. The terms "-module", "-unit" or "-er" used below may mean a unit that processes at least one function or operation, and may include hardware, software, or both hardware and software. It can be implemented as a combination of

The base station may include a wireless communication interface, a backhaul communication interface, a storage unit and a controller.

The wireless communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the wireless communication interface may perform a conversion function between a baseband signal and a bit stream according to a physical layer standard of a system. For example, in data transmission, a radio communication interface encodes and modulates a transmitted bit stream to generate composite symbols. Also, upon receiving data, the wireless communication interface demodulates and decodes the baseband signal to reconstruct the received bit stream.

The wireless communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the wireless communication interface may perform a conversion function between a baseband signal and a bit stream according to a system physical layer standard. For example, in data transmission, a radio communication interface encodes and modulates a transmitted bit stream to generate composite symbols. Also, upon receiving data, the wireless communication interface demodulates and decodes the baseband signal to reconstruct the received bit stream.

In addition, the wireless communication interface up-converts a baseband signal into a radio frequency (RF) band signal, transmits the converted signal through an antenna, and down-converts the RF band signal received through the antenna into a baseband signal. To this end, the wireless communication interface includes a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a digital-to-analog converter (DAC), An analog-to-digital converter (ADC) and the like may be included. Also, the wireless communication interface may include a plurality of transmit/receive paths. Additionally, the wireless communication interface may include at least one antenna array comprising a plurality of antenna elements.

In terms of hardware, the wireless communication interface may include a digital unit and an analog unit, and the analog unit may include a plurality of sub-units according to operating power, operating frequency, and the like. A digital unit may be implemented with at least one processor (eg, a digital signal processor (DSP)).

The wireless communication interface transmits and receives signals as described above. Accordingly, a wireless communication interface may be referred to as a “transmitter”, “receiver” or “transceiver”. In addition, in the following description, transmission and reception performed through a wireless channel may be used as a meaning including processing performed in a wireless communication interface as described above.

The backhaul communication interface provides an interface for communicating with other nodes in the network. That is, the backhaul communication interface converts the bit stream transmitted to other nodes, for example, other access nodes, other base stations, upper nodes or core networks from base stations into physical signals, and the physical signals received from other nodes into bits. convert to stream

The storage unit stores data such as basic programs, applications, and setting information for operation of the base station. The storage unit may include volatile memory, non-volatile memory, or a combination of volatile and non-volatile memory.

The controller controls the overall operation of the base station. For example, the controller transmits and receives signals through a wireless communication interface or a backhaul communication interface. Also, the controller writes data to the storage unit and reads the recorded data. The controller can perform protocol stack functions required by communication standards. According to another implementation, a protocol stack may be included in a wireless communication interface. To this end, the controller may include at least one processor.

According to an embodiment, the controller may control the base station to perform an operation according to an embodiment of the present invention.

According to various embodiments, a donor node of a wireless communication system includes at least one processor, includes a transceiver operably coupled to the at least one processor, and includes a plurality of radio bearers for a terminal accessing the relay node. configured to transmit to a relay node a first message including first information related to the donor node about; receive a second message including second information related to the relay node regarding a plurality of radio bearers for the terminal from the relay node; Data for the terminal may be transmitted to the relay node. Data may be transmitted to the terminal through a plurality of radio bearers based on the first information and the second information.

According to various embodiments, a radio bearer among a plurality of radio bearers may integrate a plurality of radio bearers. the at least one processor is also configured to determine a radio bearer for a terminal accessing the relay node and multiple radio bearers aggregated by the radio bearer; Alternatively, a radio bearer for a UE accessing a relay node may be determined.

According to various embodiments, the first message may include one or more of: identification of a terminal accessing the relay node; display information indicating the type of terminal accessing the relay node; information about a radio bearer of a terminal accessing a relay node; information about a radio bearer transmitted by a terminal accessing a relay node; information about a tunnel established for a radio bearer between the donor node and the relay node; information about integrated multiple radio bearers; radio bearer mapping information; information about the address of the side of the donor node; information about the address of the relay node side; indication information corresponding to a radio bearer of a terminal accessing the relay node; indication information indicating the relay node to allocate a new address to a radio bearer for a terminal accessing the relay node; a list of address information that cannot be used by a relay node that transmits radio bearer data of a terminal accessing the relay node; and information related to security configuration.

According to various embodiments, the second message may include one or more of: identification of a terminal accessing the relay node; information about the radio bearer granted by the relay node; information about radio bearers not acknowledged by the relay node; information about radio bearers partially granted by the relay node; radio bearer mapping information; Configuration information of a terminal accessing the relay node created by the relay node; information about the address of the relay node side; and information related to security configuration.

According to various embodiments, the second message may further include information on integrated multiple radio bearers.

According to various embodiments, the donor node may include a central unit of the donor node, and the relay node may include a distribution unit of the donor node.

According to various embodiments, a relay node of a wireless communication system includes at least one processor, includes a transceiver operably coupled to the at least one processor, and provides a plurality of information from a donor node to a terminal accessing the relay node. configured to receive a first message including first information related to a donor node for a radio bearer of; transmit to the donor node a second message including second information related to the relay node for the plurality of radio bearers for the terminal; Data on the terminal may be received from the donor node. Data may be transmitted to the terminal through a plurality of radio bearers based on the first information and the second information.

According to various embodiments, a radio bearer among a plurality of radio bearers may integrate a plurality of radio bearers. the at least one processor is also configured to determine a radio bearer for a terminal accessing the relay node and multiple radio bearers aggregated by the radio bearer; Alternatively, multiple radio bearers integrated by radio bearer may be determined.

According to various embodiments, the first message may include one or more of: identification of a terminal accessing the relay node; display information indicating the type of terminal accessing the relay node; information about a radio bearer of a terminal accessing a relay node; information about a radio bearer transmitted by a terminal accessing a relay node; information about a tunnel established for a radio bearer between the donor node and the relay node; information about integrated multiple radio bearers; radio bearer mapping information; information about the address of the side of the donor node; information about the address of the relay node side; indication information corresponding to a radio bearer of a terminal accessing the relay node; indication information indicating the relay node to allocate a new address to a radio bearer for a terminal accessing the relay node; a list of address information that cannot be used by a relay node that transmits radio bearer data of a terminal accessing the relay node; and information related to security configuration.

According to various embodiments, the second message may include one or more of: identification of a terminal accessing the relay node; information about the radio bearer granted by the relay node; information about radio bearers not acknowledged by the relay node; information about radio bearers partially granted by the relay node; radio bearer mapping information; Configuration information of a terminal accessing the relay node created by the relay node; information about the address of the relay node side; and information related to security configuration.

According to various embodiments, the second message may further include information on integrated multiple radio bearers.

According to various embodiments, the donor node may include a central unit of the donor node, and the relay node may include a distribution unit of the donor node.

Hereinafter, components of a terminal in the wireless communication system described above are illustrated. Components of a terminal to be described below are components of a general-purpose terminal supported by a wireless communication system, and may be merged or integrated with components of a terminal according to the foregoing contents, and may overlap or conflict with the above drawings. It can be interpreted that the content described with reference takes precedence. The terms "-module", "-unit" or "-er" used below may mean a unit that processes at least one function.

The terminal includes a communication interface, a storage unit and a controller.

The communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the communication interface performs a conversion function between a baseband signal and a bit stream according to the physical layer standard of the system. For example, in data transmission, a communication interface encodes and modulates a transmission bit stream to generate composite symbols. Also, when receiving data, the communication interface demodulates and decodes the baseband signal to reconstruct the received bit stream. Further, the communication interface up-converts the baseband signal to an RF-band signal, transmits the converted signal through an antenna, and down-converts the RF-band signal received through the antenna into a baseband signal. For example, the communication interface includes a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, and a digital-to-analog converter (DAC). , an analog-to-digital converter (ADC), and the like.

Also, the communication interface may include a plurality of transmit/receive paths. Additionally, the communication interface may include at least one antenna array comprising a plurality of antenna elements. On the hardware side, the wireless communication interface may include a digital circuit and an analog circuit (eg, a radio frequency integrated circuit (RFIC)). A digital circuit may be implemented with at least one processor (eg, DSP). A communication interface may include multiple RF chains. The communication interface may perform beamforming.

The communication interface transmits and receives signals as described above. Accordingly, a communication interface may be referred to as a “transmitter”, “receiver” or “transceiver”. In addition, in the following description, transmission and reception performed through a radio channel may be used as a meaning including processing performed in a communication interface as described above.

The storage unit stores data such as basic programs for operation of the terminal, applications, and setting information. The storage unit may include volatile memory, non-volatile memory, or a combination of volatile and non-volatile memory. In addition, the storage unit provides stored data according to the request of the controller.

The controller controls the overall operation of the terminal. For example, the controller sends and receives signals through a communication interface. Also, the controller writes data to the storage unit and reads the recorded data. The controller can perform protocol stack functions required by communication standards. According to another implementation, a protocol stack may be included in the communication interface. To this end, the controller may include at least one processor or microprocessor or reproduce parts of a processor. Also, a part of the communication interface or controller may be referred to as a communication processor (CP).

According to an embodiment of the present invention, a controller may control a terminal to perform an operation according to an embodiment of the present invention.

Hereinafter, a communication interface in a wireless communication system is illustrated.

The communication interface includes encoding and modulation circuitry, digital beamforming circuitry, a plurality of transmission paths, and analog beamforming circuitry.

Encoding and modulation circuitry performs channel encoding. At least one of a low-density parity check (LDPC) code, a convolution code, and a polar code may be used for channel encoding. An encoding and modulation circuit generates modulation symbols by performing constellation mapping.

A digital beamforming circuit performs beamforming on a digital signal (eg, a modulation symbol). To this end, a digital beamforming circuit multiplexes modulation symbols by beamforming weights. Beamforming weights can be used to change the size and phrase of a signal, and can be referred to as a "precoding matrix" or "precoder". The digital beamforming circuit outputs digital beamformed modulation symbols to a plurality of transmission paths. In this case, according to a multiple input multiple output (MIMO) transmission method, modulation symbols may be multiplexed or the same modulation symbol may be provided to a plurality of transmission paths.

The plurality of transmission paths convert digital beamformed digital signals into analog signals. To this end, each of the plurality of transmission paths may include an inverse fast fourier transform (IFFT) computation unit, a cyclic prefix (CP) insertion unit, a DAC, and an up conversion unit. The CP insertion unit is for an orthogonal frequency division multiplexing (OFDM) method and may be omitted when another physical layer method (eg, a filter bank multi-carrier: FBMC) is applied. That is, the plurality of transmission paths provide independent signal processing processes for a plurality of streams generated through digital beamforming. However, depending on the implementation, some elements of the plurality of transmission paths may be commonly used.

An analog beamforming circuit performs beamforming on an analog signal. To this end, the digital beamforming circuit multiplexes analog signals by beamforming weighting values. The beamformed weights are used to change the amplitude and phrase of the signal. More specifically, the analog beamforming circuit may be configured in various ways according to a connection structure between a plurality of transmission paths and an antenna. For example, each of a plurality of transmission paths may be connected to one antenna array. In another example, multiple transmission paths may be coupled to one antenna array. In another example, multiple transmission paths may be adaptively coupled to one antenna array or may be coupled to two or more antenna arrays.

The methods according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded on a computer readable medium. Computer readable media may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on a computer readable medium may be specially designed and configured for the present invention or may be known and usable to those skilled in computer software.

Examples of computer readable media may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include not only machine language codes generated by a compiler but also high-level language codes that can be executed by a computer using an interpreter and the like. The hardware device described above may be configured to operate with at least one software module to perform the operations of the present invention, and vice versa.

In addition, the above-described method or device may be implemented by combining all or some of its components or functions, or may be implemented separately.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

10: Art trading platform provision system 20: Blockchain network
100: Works trading platform providing server 201: Artist terminal
202: seller terminal 203: buyer terminal

Claims (9)

In a work trading platform providing server that provides a transaction service for an artist's work using a block chain,
a data management unit acquiring work information of the work from the artist terminal of the artist;
a work tokenization unit that obtains a work registration request signal from the artist terminal and generates at least one first NFT (Non-Fungible Token) corresponding to the work based on a first digital file for the work;
a work value calculation unit that calculates an initial transaction price of the artist;
A transaction intermediary unit for mediating a transaction for the first NFT generated through the blockchain network at the initial transaction price; and
Including a service operation unit that provides a royalty to the writer,
The work value calculation department,
Obtaining information on an initial desired price for the work through the artist terminal;
Determining a writer value type to which the writer belongs, using a plurality of learning data to determine a writer value type corresponding to each writer;
and an author value type prediction model for determining a cluster corresponding to each of the writers by clustering the writers corresponding to each of the learning data and determining an author value type to be assigned to the determined cluster, and predicting the writer value type. The model performs clustering according to a Gaussian Mixture Model (GMM),
The artist value type prediction model obtains pre-processing learning data including the number of works exhibited, the number of works sold, experience of real works (years), experience of digital works (years), and total sales of works by using learning data collected for each artist , Creating a learning feature vector corresponding to the author using at least some of the indicators included in the acquired preprocessing learning data, and classifying each of the authors into one of a plurality of clusters using the learning feature vector ( classify),
Determine the average price of the transaction prices of each registered work of the same type of artist within the determined artist value type as an initial appropriate price;
Based on the initial desired price and the initial appropriate price, a first initial transaction price of the work is determined, the first initial transaction price is determined through the following equation,

In the above equation, V ₁ is the first initial transaction price of the work, P is the initial desired price obtained through the artist terminal, R is the initial appropriate price, w ₁ is a weight for the initial desired price, w ₂ is the weight for the initial appropriate price, and a is the author's awareness, server. In claim 1,
The work tokenization unit,
At least one first NFT corresponding to the first digital file is generated based on the number of divisions of ownership of the work;
Linking the initial owner ID for the first NFT to the writer ID;
After storing the digital file for the work included in the work registration request signal in an external storage server that exists outside the blockchain network, generating metadata including the work information, the metadata is stored in the external storage server. Stored on the storage server, the server. In claim 1,
The transaction broker,
Obtaining a purchase request signal including information on the number of the first NFTs and purchase price information per unit of the first NFTs from a first user terminal of a first user;
Obtaining a sales request signal including information on the number of the first NFTs and selling price information per unit for the first NFTs from the writer terminal;
Brokers a transaction between the author and the first user with respect to the first NFT corresponding to the number information when the author's sales volume and the sales price match the buyer's purchase amount, and the purchase price and the sales price match. do, server. delete delete As a method of providing a transaction service for an artist's work using a block chain,
obtaining work information of the work from an artist terminal of the artist;
obtaining a work registration request signal from the artist terminal;
Generating at least one first NFT (Non-Fungible Token) corresponding to the work based on the first digital file for the work;
Calculating an initial transaction price of the artist;
Brokering a transaction for a first NFT generated through a blockchain network at the initial transaction price; and
Providing royalties to the writer;
The step of calculating the initial transaction price of the artist,
obtaining information on an initial desired price for the work through the artist terminal;
determining a writer value type to which the writer belongs, and determining a writer value type corresponding to each writer by using a plurality of learning data;
and an author value type prediction model for determining a cluster corresponding to each of the writers by clustering the writers corresponding to each of the learning data and determining an author value type to be assigned to the determined cluster, and predicting the writer value type. The model performs clustering according to a Gaussian Mixture Model (GMM),
The artist value type prediction model obtains pre-processing learning data including the number of works exhibited, the number of works sold, experience of real works (years), experience of digital works (years), and total sales of works by using learning data collected for each artist , Creating a learning feature vector corresponding to the author using at least some of the indicators included in the acquired preprocessing learning data, and classifying each of the authors into one of a plurality of clusters using the learning feature vector ( classify),
determining, as an initial proper price, a price obtained by averaging transaction prices of registered works of the same type of artists within the determined artist value type;
Determining a first initial transaction price of the work based on the initial desired price and the initial appropriate price, and determining the first initial transaction price through the following equation,

In the above equation, V ₁ is the first initial transaction price of the work, P is the initial desired price obtained through the artist terminal, R is the initial appropriate price, w ₁ is a weight for the initial desired price, w ₂ is a weight for the initial appropriate price, and a is the author's awareness. A non-transitory recording medium on which a program for executing the method according to claim 6 is recorded and can be read by a computer. A computer program recorded on a non-transitory recording medium to execute the method according to claim 6 in a work trading platform providing server. As a work trading platform providing system that provides trading services for the artist's works using blockchain,
an artist terminal for transmitting a work registration request signal including the number of divisions of ownership of the artist's work; and
A work trading platform providing server interworking with the artist terminal and servicing a collaborative work between a user and an artist based on the work registration request signal;
The work trading platform providing server,
a data management unit acquiring work information of the work from the artist terminal of the artist;
a work tokenization unit that obtains a work registration request signal from the artist terminal and generates at least one first NFT (Non-Fungible Token) corresponding to the work based on a first digital file for the work;
a work value calculation unit that calculates an initial transaction price of the artist;
A transaction intermediary unit for mediating a transaction for the first NFT generated through the blockchain network at the initial transaction price; and
Including a service operation unit that provides a royalty to the writer,
Obtaining information on an initial desired price for the work through the artist terminal;
Determining a writer value type to which the writer belongs, using a plurality of learning data to determine a writer value type corresponding to each writer;
and an author value type prediction model for determining a cluster corresponding to each of the writers by clustering the writers corresponding to each of the learning data and determining an author value type to be assigned to the determined cluster, and predicting the writer value type. The model performs clustering according to a Gaussian Mixture Model (GMM),
The artist value type prediction model uses learning data collected for each artist to obtain preprocessing learning data including the number of works exhibited, the number of works sold, experience of real works (years), experience of digital works (years), and total sales of works, , generating a learning feature vector corresponding to the author using at least some of the indicators included in the acquired preprocessing learning data, and classifying each of the authors into one of a plurality of clusters using the learning feature vector ( classify),
Determine the average price of the transaction prices of each registered work of the same type of artist within the determined artist value type as an initial appropriate price;
Based on the initial desired price and the initial appropriate price, a first initial transaction price of the work is determined, the first initial transaction price is determined through the following equation,

In the above equation, V ₁ is the first initial transaction price of the work, P is the initial desired price obtained through the artist terminal, R is the initial appropriate price, w ₁ is a weight for the initial desired price, w ₂ is the weight for the initial appropriate price, and a is the author's awareness, system.

Images