KR20210059165A - Copyright P2P trading system for works of art using blockchain - Google Patents

Abstract

The present invention relates to an art work copyright P2P transaction system using blockchain that allows for convenient and safe peer to peer (P2P) transaction of copyrights for art works through blockchain. The art work copyright P2P transaction system comprises: one or more user terminals with distributed applications installed; an authentication server that provides certificates according to self-authentication; and a blockchain network that executes the chain code for artwork copyright registration and copyright issuance transactions submitted from distributed applications and the chain code for artwork copyright sell/purchase transactions and consisting of multiple nodes writing to one or more blocks. The blockchain network comprises an artwork copyright transaction server that registers and issues artwork copyright when a transaction for copyright registration of an artwork occurs from a distributed application or issues divided copyrights corresponding to a value so that the value of the artwork copyright is possible for distributed transactions.

Description

Copyright P2P trading system for works of art using blockchain}

The present invention relates to a P2P transaction system for artwork copyrights using a block chain, and in particular, an artwork using a blockchain that allows convenient and safe copyrights for artworks to be traded in a P2P (Peer to Peer) method through a blockchain. It relates to a copyright P2P transaction system.

Currently, the procedure for copyright management and registration for artwork and visual arts is too complex, fees are high, and distribution of artwork copyrights is difficult.

Although art works and visual art works are obvious products, they are traditionally in an opaque black market structure that does not show a sales market, making it difficult to distribute art works copyrights.

In addition, there are works, but the settlement may be omitted due to the custom of not knowing detailed information about the purchaser, date, etc.

The copyright of domestic artworks is centered on a small number of commercial galleries in which the artist and the artist have exclusive relationships in both the first and second phases.

There are not many commercial galleries that have a systematic copyright management and distribution system for artworks, and there is a high entry barrier that requires becoming a famous artist in order to establish a relationship with the commercial galleries.

Meanwhile, Korean Patent Registration No. 10-0958516 has been proposed in the past to protect the copyright of artworks. The conventionally proposed technology allows the copyright holder of the basic content to decide on the use of the content, such as the disclosure of the secondary content, when content (so-called secondary content) is created by another person on the basis of a specific content, This is a method for the copyright holder of the basic content to flexibly protect the copyright according to his or her will.

Even in such a prior art, the procedure for copyright management and registration is complicated, it is difficult to distribute the copyright of the artwork, and the forgery of the input information is possible, so there is a limit to the protection of the copyright of the artwork.

Republic of Korea Patent Registration No. 10-0958516 (registered on May 10, 2010) (Method for protecting copyright for basic content with respect to secondary content)

Therefore, the present invention has been proposed to solve the problems arising from the general art copyright transaction method and the prior art as described above, and provides a convenient and safe copyright for art works through a block chain in a P2P (Peer to Peer) method. Its purpose is to provide a P2P trading system for artwork copyrights using a blockchain that enables transactions.

Another object of the present invention is to provide a P2P trading system for art work copyrights using a block chain to prevent forgery and alteration of art work copyrights by allowing transactions for art work copyrights using a block chain.

Another object of the present invention is a P2P transaction system for artwork copyrights using a block chain in which the sale/purchase of decentralized artwork copyrights among service users by decentralizing so that many copyrights of one artwork can be owned is safe and free. Is to provide.

Another object of the present invention is to register the usage details of the fundraising amount on the blockchain network so that the sponsorship details are transparently disclosed so that the amount sponsored by investors can be properly sponsored to the authors, and the sponsored authors are sponsors. It is to provide a P2P trading system for artwork copyrights using a blockchain that allows them to receive rewards corresponding to the sponsored amount (goods, artwork, free invitations to exhibitions, collections of works, etc.).

In order to achieve the above object, the "art work copyright P2P transaction system using a block chain" according to the present invention includes: at least one user terminal installed with a distributed application; An authentication server that provides a certificate according to identity authentication according to the request of the user terminal; Includes a blockchain network consisting of a plurality of nodes that execute chain codes for art copyright registration and copyright issuance transactions submitted from the decentralized application and chain codes for art copyright sales/purchase transactions, and record them in one or more blocks. and,

The blockchain network is responsible for registering the copyright of the artwork and issuing the copyright when a transaction for the copyright registration of the artwork occurs from a distributed application, or issuing a divided copyright corresponding to the value so that the value of the copyright of the artwork can be distributed. It is characterized.

The blockchain network is characterized in that it provides an artist sponsor service by registering the usage details of the fundraising amount and by disclosing the sponsorship details when a request for inquiry of the sponsorship details from a distributed application is requested.

According to the present invention, it is possible to conveniently and safely register a copyright for an artwork and prove ownership through a block chain.

In addition, according to the present invention, there is an effect of issuing divided copyrights corresponding to the value of the copyrights of the artworks, so that the value of the copyrights of the artworks can be distributed and traded.

In addition, according to the present invention, there is an effect of promoting the sale/purchase of art copyrights safely and freely through a blockchain network.

In addition, according to the present invention, there is an effect of being able to safely and transparently manage the usage history of the fundraising fund raised by the artist through the blockchain network.

1 is an overall configuration diagram of a copyright P2P transaction system for artworks using a block chain according to the present invention,
2 is a configuration diagram of a distributed application of the user terminal of FIG. 1;
3 is a block diagram of an embodiment of the artwork copyright transaction server of FIG. 1.

Hereinafter, an art copyright P2P transaction system using a block chain according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the present invention described below should not be construed as being limited to a conventional or dictionary meaning, and the inventor should appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that it can be.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, and various equivalents and equivalents that can replace them at the time of the present application It should be understood that there may be variations.

1 is a block diagram of a copyright P2P transaction system for artworks using a block chain according to a preferred embodiment of the present invention. Here, the block chain to which the present invention is applied is a "Private Blockchain", which is a hybrid blockchain that has partially brought back the central authority in the subject of reviewing the approval process of the block. It is considered to have higher reliability.

Art work copyright P2P transaction system using a block chain according to the present invention, at least one user terminal 100 installed with a distributed application (DApp), a certificate according to identity authentication at the request of the user terminal 100 Provided authentication server 50, a plurality of executing chain codes for art copyright registration and copyright issuance transactions submitted from the distributed application and chain codes for art copyright sales/purchase transactions, and recording in one or more blocks Including a block chain network 200 consisting of nodes, one of a plurality of nodes on the block chain network 200 receives the latest block, sets a key value, and stores it in the off-chain, and art from the user terminal 100 When a copyright registration of a work is requested, the copyright of an art work is registered using the key value, and when an art work copyright transaction is requested, the off-chain block is searched and the transaction hash value is compared with the block data on the on-chain to sell/buy the art work copyright at the same time. It may include an artwork copyright transaction server 300 that processes the transaction.

The blockchain network 200 registers the copyright of the artwork and issues a copyright when a transaction for copyright registration of an artwork occurs from a distributed application, or distributes the value of the copyright of the artwork so that the value of the copyright of the artwork can be distributed. Can be issued.

In addition, the blockchain network 200 may register the usage details of the fundraising amount, and when a request for inquiry of the sponsorship details from a distributed application is requested, disclose the sponsorship details to provide an artist sponsorship service.

The user terminal 100 is a terminal possessed by a user for participating as a node in the blockchain network 200 of the present invention, submitting transactions, and managing transaction details in the form of a distributed ledger. Blockchain network (work name, size, author name, sales amount, sales date, purchaser, place of purchase, etc.) 200).

In particular, the distributed application installed and executed in the user terminal 100 is connected to a peer of the blockchain network 200 when a transaction is requested to be generated according to the user's manipulation, and the chain code from the blockchain network 200 You can call query functions. Thereafter, the execution result of the chaincode of the distributed application is received and displayed on the user terminal 100.

The user terminal 100 is a terminal used by a user who registers the copyright of an artwork on a blockchain network, requests issuance of copyright, requests for sale/purchase of copyright of an artwork, and requests details of sponsorship transactions. By registering copyrights for works of art on the blockchain network, the transaction process can be managed transparently and securely.

In addition, in an embodiment of the present invention, a biometric authentication technology for identification can be applied when user authentication is performed, the public key is stored in the authentication server 50, and the private key is stored in the user terminal 100 or the user terminal 100 ) And USB HID, can be stored in a separate authentication device, and can authenticate the person by receiving a certificate from the authentication server 50 through biometric information such as fingerprints and irises, and distributed applications can use the certificate as a blockchain. By submitting to the network 200, the authentication process can be performed.

The above-described user terminal 100 includes all kinds of handheld-based wireless communication devices such as smartphones, smart pads, and tablet PCs, and computing devices such as stationary PCs and notebook computers. May be used, and the distributed application may be implemented in the form of a computer program, recorded on a recording medium capable of reading and writing, and mounted on the terminal.

Blockchain network 200 consists of one or more distributed ledgers and a few peers where chain codes are stored, and the chain code is executed by CLI commands, and QSCC (Query System ChainCode), ESCC (Endorsement System ChainCode), These include Validation System ChainCode (VSCC), Configuration System ChainCode (CSCC), and Lifecycle System ChainCode (LSCC). QSCC is the chaincode used to read the stored data of the blockchain, ESCC is the chaincode responsible for the guarantee policy, and VSCC is the chaincode used to verify the block. In addition, CSCC is a chaincode used when setting up a channel, and LSCC is a chain code used to perform all series of processes from installation to instantiation of the chaincode.

It's a chain code.

In such a blockchain network 200, a group by a trusted organization configures the fabric network and, by the administrator's authority to change the network settings, the number of nodes that want to participate in the channel and the copyright issuance and transaction role group nodes It is composed of a consortium, and another group sends a join request to the group to obtain access rights, thereby creating a peer.

Here, each peer 201 stores a ledger, and after an instance process in which a chaincode is installed in each peer 201 and the interface is notified to other peers, it is possible to invoke a query function of the chaincode. do. Of these, the order node 205 receives the guaranteed transaction, records it in the latest block, and distributes it to each peer 201.

In particular, in the private blockchain system according to an embodiment of the present invention, a guarantee policy, which is a consensus algorithm of Hyperledger Fabric, is set by the group to which the art work copyright transaction server 300 belongs, and the guarantee policy is "all peer agreement". Alternatively, it may be set to “some peer agreement” more than a preset number.

In addition, the artwork copyright transaction server 300 of the block chain network 200 does not participate in block generation as a peer and performs only storage of the block, and the above data stored in the block at the request of the user terminal 100, If it is the same as the original after verifying whether it has been altered or not, a copyright may be issued and returned to the user terminal 100.

Hereinafter, the operation of the art copyright P2P transaction system using a block chain according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

2 is a diagram of a distributed application included in a copyright P2P transaction system for artworks using a block chain according to an embodiment of the present invention.

2, the distributed application 150 according to an embodiment of the present invention is a terminal communication unit 151 for transmitting and receiving data by accessing the blockchain network 200 through a communication network, mounted on a user terminal, or The USB HID 152 performing communication with the authentication device connected to the authentication device 152, the authentication unit 153 requesting the user authentication to the authentication server 50 through the biometric authentication means stored in the authentication device, when authentication is completed, the block A network participation unit 154 requesting participation as a node of the chain network 200, a copyright registration request unit for an artwork that submits a transaction according to the copyright registration of the artwork to the blockchain network 200 and requests execution of the chain code ( 155), submit a transaction for the sale/purchase of art works to the blockchain network 200 or a transaction according to a request for confirmation of the transaction details of the sponsorship, and request the execution of the chain code to the art work sale/purchase transaction request unit (156). Can include.

The terminal communication unit 151 may transmit and receive data by accessing the blockchain network 200 through a communication network. In addition, the terminal communication unit 151 may communicate with the authentication server 50 to perform a user authentication procedure and receive a certificate issued by the authentication server 50.

The USB HID 152 may provide an interface for communication with an authentication device connected to a user terminal. In the present invention, FIDO20-based biometric authentication is performed when user authentication is performed, and biometric information for this may be stored in a user terminal, may be stored in a separate authentication device, or used to recognize a user's fingerprint or iris. have.

The authentication unit 153 checks whether the stored biometric information and the scanned result of the input fingerprint or iris are the same according to the user's attempt to authenticate themselves, and activates each function of the distributed application 150 in the same case. In addition, through the terminal communication unit 151, the authentication server 50 may request a certificate that proves the identity of the person.

The network participation unit 154 may attempt to access a peer of the blockchain network 200 by submitting the received certificate to the blockchain network 200. When the certificate is normally submitted and the certificate is verified by the blockchain network 200, the blockchain network 200 joins the network as a node by connecting the distributed application to the peer.

According to the user's input, the artwork copyright registration request unit 155 receives the contents (work name, artist name, size, sale amount, sale date, purchaser, place of purchase, etc.) to be transacted or recorded according to the user's input and makes a transaction. Can be created and submitted to the blockchain network 200. After verifying that the submitted transaction is a normal transaction according to the execution of the chain code in the blockchain network 200, it is recorded in a ledger, that is, a block.

The art work sale/purchase transaction request unit 156 may trade tokens or receive an art work sale/purchase input, generate a transaction, and submit it to the blockchain network 200 according to a user's input. After verifying that the submitted transaction is a normal transaction according to the execution of the chain code in the blockchain network 200, it is recorded in a ledger, that is, a block.

In addition, the distributed application 150 may request the copyright issuance or sponsorship transaction details for the artwork copyright registered by the user to the artwork copyright transaction server 300 included in the blockchain network 200.

To this end, the art work sale/purchase transaction request unit 156 may request a copyright from the blockchain network 200 for the user's art work copyright registration previously recorded in the block according to the user's input, and the art work copyright The transaction server 300 compares the contents recorded in the on-chain and off-chain for the user's artwork copyright in accordance with this request to prove that the data of the block recorded in the block of the blockchain network 200 is the same as the original. do.

In addition, the art work sale/purchase transaction request unit 156 may request the transaction details of the sponsorship money from the block chain network 200 according to the user's input, and the art work copyright transaction server 300 may request the block chain network according to such request. By comparing the contents recorded on-chain and off-chain for the donation through (200), it proves that the data of the block recorded in the block of the blockchain network 200 is the same as the original, and the support details for the donation are user Provided to the terminal 100.

The distributed application 150 performs biometric authentication to authenticate the user and participate in the blockchain network 200, and the copyright on the copyright of the own artwork recorded in the block on the chain on the artwork copyright transaction server 300 Or you can get a split copyright. In addition, you can check the details of donations or make transactions such as selling/buying copyrights for artworks. If necessary, you can compensate for the donation (goods, work photos, free invitation tickets for exhibitions, complete works, etc.).

Next, the process of art work copyright registration, copyright issuance, art work copyright transaction, and sponsorship history service in the art work copyright transaction server 300 will be described in detail as follows.

3 is an exemplary configuration of the artwork copyright transaction server 300 of the present invention, a server communication unit 310 for transmitting and receiving data with a block chain network 200 or an accessed user terminal through a communication network, and a node of the block chain network The artwork copyright register 320 that registers the block generated by participating in the art work copyright register 320, the database 330 that stores the data of the artwork copyright block and the data of the sponsorship transaction block and the data of the art work transaction block off-chain, a distributed application The copyright transaction request processing unit 340 that receives a request for the transaction of the user's artwork copyright from the user's copyright transaction and the usage details of the fundraising amount, searches for a block of the on-chain using the key value, extracts the block containing the user's artwork copyright, and extracts The hash value of the block data described in the block data and the hash value of the original stored in the off-chain are compared to determine whether they are the same, and the block containing the art work transaction details is extracted, and the hash value of the block data written in the extracted block and off A block search unit 350 that compares the hash value of the original stored in the chain to determine whether the hash values are the same, and if the two hash values are the same, the user terminal 100 proves that the user's art work is copyright or processes the art work transaction. ) To provide an art work transaction processing unit 360, and a fundraising amount usage history processing unit 370 that processes the fundraising amount usage history and provides it to the user terminal 100.

The server communication unit 310 may transmit and receive data by accessing the blockchain network 200 through a communication network. In addition, the server communication unit 151 may receive a request for copyright registration of the art work of the user from a peer connected to the user terminal 100 on the block chain network 200, and conduct transactions such as selling/purchasing art work. You can receive a request, you can receive a request for the use of the fundraising amount, and you can send a copyright certificate for art work, a transaction certificate such as selling/purchasing art work, and a certificate of fundraising use details.

The artwork copyright registration unit 320 may collect the artwork copyright block newly added to the blockchain network 200. The blockchain network 200 executes a chain code for the copyright registration transaction for artwork submitted by a distributed application, issues the artwork copyright through a consensus process between peers, guarantees permission, and provides the latest block by an order peer. It is included in, and the artwork copyright register 320 collects blocks distributed by the order peer.

The database 330 may store the collected blocks. Such a database stores blocks as off-chain, and contains the original document of the stored block data, and its deletion or modification is set to be impossible.

The copyright transaction request processing unit 340 may receive a request for issuance of a copyright for an artwork, a request for a transaction for an artwork, and a request for a fundraising amount usage history from a distributed application. Such a request may be received by an API, and the copyright transaction request processing unit 340 may identify a corresponding user through a certificate of the user terminal. Create a key value and make it available for block search.

The block search unit 350 may compare the hash value of the block data to verify whether the block is above or modulated. The block search unit 350 searches for a block of the on-chain using the generated key value, extracts the block of the corresponding user, and calculates the block data of the off-chain, that is, the hash value of the original by referring to the database 330 . And it is determined whether the two hash values are the same.

That is, as a block is created by a new transaction on the blockchain network, a new block is included in the on-chain, and at this time, the certificate and monitoring using the biometric information of the user corresponding to the transaction party of the transaction details recorded in the block is performed. A key is created by combining the data for it, and the key value is stored together with the corresponding block data. Here, the block data becomes the hash value of the original document.

Thereafter, when the user requests for art work copyright issuance, art work transaction request, and fundraising usage history, the art work copyright transaction server 300 extracts a block of the on-chain using a key value according to the user's biometric information. , By comparing the hash value of the original document stored in the database as off-chain through the hashing function and the hash value of the block data of the extracted block to determine whether they are the same, to prove that they are the copyright holder of the artwork or process the transaction of the artwork. Or provide a history of fundraising usage.

The art work transaction processing unit 360 may issue a certificate (copyright certificate) certifying the user's sale/purchase transaction of the art work. These copyright certificates can maintain data integrity.

In addition, the artwork copyright transaction server 300 may compare a hash value of an on-chain block and an off-chain block to provide a copyright certificate notarizing that the above has not been altered to the user terminal.

A brief summary of the art copyright P2P transaction system using the blockchain of the present invention is as follows.

The distributed application requests the authentication server to authenticate itself using the user's biometric information. The user can request verification using biometric information such as his or her fingerprint or iris. The distributed application (DApp) performs authentication through the private key stored in the user terminal and the public key stored in the FIDO 20-based authentication server.

If authentication is successful, the distributed application (DApp) receives the resulting certificate from the authentication server, and when the certificate is received, the distributed application is connected to the peer of the blockchain network, and the user who has completed self-authentication is granted the copyright of his artwork. A transaction for registration or a transaction for art work or a transaction requesting the usage of the fundraising amount occurs. Here, a data request between a distributed application (DApp) and a blockchain network can be implemented by an API.

The blockchain network provides a guarantee policy setting function and a network setting function, an ordering service that records guaranteed transactions in blocks, and a client application can be connected through a channel.

In addition, corporate peers, personal peers, and peers of the artwork copyright transaction server can each store a ledger, and can be connected with peers of other consortiums through channels.

Thereafter, when the authenticated user who registered the artwork copyright requests the publication of the artwork copyright through a distributed application, the on-chain block is retrieved and extracted using the key from the artwork copyright transaction server of the blockchain network, and the off-chain block A verification process is performed to determine whether the copyright holder of the artwork is by comparing it with the hash value of the original recorded in.

Subsequently, if it is determined as the copyright holder of the artwork according to the internal verification result, the copyright of the copyright holder of the artwork is issued. Here, the copyright of the artwork is about the value of the copyright of the artwork, and if necessary, a divided copyright corresponding to the value may be generated so that the value of the copyright of the artwork can be distributed and traded. By decentralizing one copyright so that many can own it, it is also possible to compensate the copyright profit according to the amount of ownership in the form of dividends.

Next, the distributed application (DApp) receives the copyright, and the user who confirms this downloads the copyright to the user terminal.

On the other hand, when an authenticated user requests a transaction such as selling/buying artwork through a distributed application, the on-chain block is retrieved and extracted using the key from the artwork copyright transaction server of the blockchain network, and A verification process is performed to determine whether the copyright of the artwork is authentic or not by comparing it with the hash value of the recorded original.

Subsequently, if it is determined that the copyright of the artwork is normal according to the internal verification result, the transaction of the art work is processed and a certificate of the art work is issued.

Next, the distributed application (DApp) receives the artwork copyright sales certificate, and the user who confirms this downloads the artwork sales certificate to the user terminal.

In addition, when an authenticated user requests the fundraising usage history through a distributed application, the on-chain block is retrieved and extracted using the key from the artwork copyright transaction server of the blockchain network, and the hash of the original recorded in the off-chain block. Compared with the value, a verification process is performed to determine the authenticity of the fundraising usage history.

Then, if it is determined that the fundraising amount usage is normal without forgery or alteration according to the internal verification result, the fundraising amount use detail is provided.

Next, the distributed application (DApp) receives the fundraising usage history, and the user who confirms this downloads the fundraising usage history to the user terminal.

Although the invention made by the present inventor has been described in detail according to the above embodiment, the present invention is not limited to the above embodiment, and it is common knowledge in the art that various changes can be made without departing from the gist of the invention. It is self-evident to those who have.

50: authentication server
100: user terminal
150: distributed application
151: terminal communication unit
152: USB HID
153: authentication department
154: Network Participation Department
155: Art work copyright registration request
156: Art work sale/purchase transaction request section
200: Blockchain network
300: artwork copyright transaction server
310: server communication unit
320: Art work copyright register
330: database
340: Copyright transaction request processing unit
350: block search unit
360: art work transaction processing unit
370: fundraising usage history processing unit

Claims (5)

As a system that registers copyrights of artworks using a private blockchain and handles transactions of artworks copyrights,
One or more user terminals on which distributed applications are installed;
An authentication server that provides a certificate according to identity authentication at the request of the user terminal; And
Includes a blockchain network consisting of a plurality of nodes that execute chain codes for art copyright registration and copyright issuance transactions submitted from the decentralized application and chain codes for art copyright sales/purchase transactions, and record them in one or more blocks. and,
The blockchain network is an art that registers and issues copyrights when a transaction for copyright registration of an artwork occurs from a distributed application, or issues a divided copyright corresponding to the value so that the value of the copyright of the artwork can be distributed. Art work copyright P2P trading system using a block chain, characterized in that it comprises a work copyright transaction server.
The method according to claim 1, wherein the distributed application is a terminal communication unit for transmitting and receiving data by accessing a blockchain network through a communication network; USB HID mounted on the user terminal or performing communication with an authentication device connected to the user terminal; An authentication unit for requesting user authentication through an authentication server through a biometric authentication means stored in the authentication device; When authentication is completed, a network participation unit that requests participation as a node of the blockchain network; Art work copyright registration request unit for submitting a transaction according to the art work copyright registration to the blockchain network and requesting execution of the chain code; Using a blockchain, characterized by including a transaction request unit for selling/purchasing art works or a transaction according to a request for confirmation of transaction details of sponsorship funds to the blockchain network, and requesting execution of the chain code. Art work copyright P2P trading system.
In claim 2, the artwork copyright registration request unit, according to the user's input, trades tokens or records contents including at least one of a work name, artist name, size, sale amount, sale date, purchaser, and place of purchase. An art copyright P2P transaction system using a blockchain, characterized in that it receives input and creates a transaction and submits the transaction to the blockchain network.
In claim 1, the blockchain network verifies that the transaction submitted from the distributed application is a normal transaction according to the execution of the chain code, and records it in a block when the transaction is verified as a normal transaction. system.
The method of claim 1, wherein the artwork copyright transaction server comprises: a server communication unit that transmits and receives data to and from a blockchain network or an accessed user terminal through a communication network; Art work copyright register for registering blocks generated by participating as a node of the blockchain network; A database for storing data of a copyright block of artwork, data of a fund transaction block, and data of an artwork transaction block off-chain; A copyright transaction request processing unit that receives a request from a distributed application for a transaction on copyright of a user's artwork and usage of the fundraising amount; By searching for a block on the chain using the key value, extracting the block containing the copyright of the user's artwork, and comparing the hash value of the block data written in the extracted block with the hash value of the original stored off-chain to determine whether they are the same. A block search unit that determines whether or not they are identical by judging, extracting a block including transaction details of the artwork, and comparing the hash value of the block data written in the extracted block with the hash value of the original stored in the off-chain; When the two hash values are the same, an art work transaction processing unit that proves that the user's art work is copyright or processes the art work transaction and provides it to the user terminal; Art work copyright P2P transaction system using a block chain, characterized in that it comprises a fundraising amount usage history processing unit that processes the fundraising amount usage history and provides it to the user terminal.

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