WO2023038242A1

WO2023038242A1 - Blockchain-based metaverse service operation server for operating metaverse service capable of providing, in metaverse environment, item matched with real product through linkage with two-dimensional code printed on real product, and operating method therefor

Info

Publication number: WO2023038242A1
Application number: PCT/KR2022/008702
Authority: WO
Inventors: 송상엽; 천병갑; 김광석; 조준호
Original assignee: 주식회사 한컴위드; 주식회사 한컴코드게이트
Priority date: 2021-09-07
Filing date: 2022-06-20
Publication date: 2023-03-16
Also published as: KR102479477B1

Abstract

A metaverse service operation server and an operating method therefor are disclosed. The present invention presents a blockchain-based metaverse service operation server for operating a metaverse service capable of providing, in a metaverse environment, an item matched with a real product on the basis of a two-dimensional code, and an operating method therefor, and thus can support that a user, having purchased a specific real product, more conveniently and rapidly receives the item matched with the specific real product in the metaverse environment according to the account of the user.

Description

A blockchain-based metaverse service operation server for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product and its operating method

The present invention is a blockchain-based metaverse service operation server for operating a metaverse service capable of providing items matching the real product on the metaverse environment through linkage with a two-dimensional code printed on the real product, and It's about how it works.

Metaverse is a compound word of meta, which means 'virtual, transcendence', and universe, which means 'world, universe', and means a three-dimensional virtual world linked to reality.

Recently, as the global COVID-19 pandemic has been prolonged, contact and movement between people are limited, and as 5G communication networks that can transmit large amounts of information at high speed are expanded, various forms of life or game-type virtual worlds are being developed. Metaverse services are emerging.

These metaverse services support a function that allows the design of avatars existing in the metaverse environment to be changed. Users can utilize these functions to design avatars existing in the metaverse environment as desired without physical limitations. By changing variously, you can get fun and satisfaction.

On the other hand, as the use of two-dimensional codes such as QR codes (Quick Response Codes), veri codes, and dot codes has increased in recent years, the surface of a real product contains predetermined information for identifying the corresponding real product. By printing the code, a system technology that supports the user who has purchased the actual product to receive an identification code for an item that matches the actual product simply by scanning the two-dimensional code with his or her electronic terminal. may be considered for the introduction of

Through this, a user who purchases a specific physical product can receive an identification code for an item that matches the physical product he or she purchased by simply scanning the two-dimensional code printed on the surface of the physical product with an electronic terminal. , Based on the identification code issued in this way, the user can activate the corresponding item on the metaverse and change the design of the avatar existing in the metaverse environment as desired, so the user will be able to get greater fun and satisfaction. .

Also, in recent years, a block chain technology capable of ensuring reliability and stability of corresponding data by distributing and storing predetermined data in a plurality of nodes rather than in a central server has been widely used.

Blockchain technology means that when predetermined data, called a transaction, is created, any one of a plurality of nodes participating in a blockchain network is based on the previous block included in the blockchain data in which several blocks are chained. By generating a new block including the transaction, connecting the block to the blockchain data in a chain, and then distributing the block to other nodes through the blockchain network, predetermined data is distributed to a plurality of nodes. It means a technology that enables distributed storage.

In this regard, if the issuance information for the identification code can be registered in the blockchain network, the reliability and stability of the issuance of the identification code can be guaranteed.

Therefore, it is necessary to research a blockchain-based system technology that supports the provision of items matching the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product.

The present invention proposes a blockchain-based metaverse service operation server and its operation method for operating a metaverse service that can provide items matched to real products based on a two-dimensional code on the metaverse environment, We want to support users who have purchased physical products to be provided with items that match the specific physical products in the metaverse environment according to their account more conveniently and quickly.

According to one embodiment of the present invention, a block for operating a metaverse service capable of providing items matched to the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product. The chain-based metaverse service operation server stores n different natural numbers having a size of 9 or less and an embedding vector in which a preset n-dimensional embedding vector corresponding to each of the n natural numbers is stored. Part, a plurality of pre-specified real goods - For each of the plurality of real goods, a different n-digit serial number for identifying each real product (here, the numbers located at each digit constituting the serial number are designated as one of the n natural numbers) is pre-assigned, and on the surface of each of the plurality of real products, an n-dimensional embedding vector corresponding to each digit constituting the serial number of each real product. Data for an n x n identification matrix generated by matrix multiplication of an n x n size array matrix in which is sequentially arranged as a row vector and a preset verification matrix of n x n size (here, the verification matrix is a matrix with an inverse matrix). A two-dimensional code inserted is pre-printed - A serial number storage unit in which serial numbers corresponding to each are stored, and a pre-issued identification code corresponding to each of a plurality of items pre-specified as usable in the metaverse environment a stored identification code storage unit, a table storage unit storing an item matching table in which information on items predesignated to match each of the plurality of real products among the plurality of items is recorded, and a table storage unit storing the plurality of real products. When a first user who has purchased a first real product, which is one of the products, scans and recognizes a two-dimensional code printed on the surface of the first real product through the first electronic terminal, the first electronic terminal When the first identification matrix extracted through the two-dimensional code printed on the surface of the first physical product is received from , Based on the first identification matrix and the verification matrix, by checking an n-dimensional embedding vector corresponding to each digit constituting the serial number of the first real product, the serial number of the first real product and whether the real product for which the first user scanned the 2D code through the first electronic terminal corresponds to which of the plurality of real products, based on the serial number of the first real product. By performing the identification, as a real product scanned by the first user among the plurality of real products, a real product identification unit for identifying the first real product, and a real product scanned by the first user. When the first real product is identified, an item information checking unit that checks information on a first item matched to the first real product by referring to the item matching table; After extracting a first identification code corresponding to the first item from an identification code storage unit and requesting transmission of personal information of the first user to the first electronic terminal, the first user is sent from the first electronic terminal. As personal information of, when first personal information is received, first date information for the current point in time is generated, and then a first data set composed of the first personal information, the first identification code, and the first date information is generated. A first dataset generation unit that generates a first dataset, when the first dataset is generated, generates a first hash value by applying the first dataset as an input to a preset hash function, and then converts the first hash value to a preset hash function. When a first electronic signature value generator generates a first electronic signature value by encrypting with a private key and the first electronic signature value is generated, the first personal information, the first identification code, the first date information and the first electronic signature value are generated. 1 by generating a first transaction including an electronic signature value, registering the first transaction in a preset blockchain network, and then transmitting the first identification code to the first electronic terminal, and an identification code issuing unit that completes issuance of an identification code for an item that matches the product.

In addition, according to an embodiment of the present invention, a blockchain for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with a two-dimensional code printed on the real product. The operating method of the metaverse service operating server based on the above is to store an embedding vector storage in which n different natural numbers having a size of 9 or less and a preset n-dimensional embedding vector corresponding to each of the n natural numbers are stored. Maintaining, a plurality of pre-specified real products - For each of the plurality of real products, a serial number of different n digits for identifying each real product (here, a serial number located at each digit constituting the serial number) The number is designated as one of the n natural numbers) is pre-assigned, and on the surface of each of the plurality of real products, n-dimensional numbers corresponding to each digit constituting the serial number of each real product In an n x n size identification matrix generated by matrix multiplication of an n x n size placement matrix in which embedding vectors are sequentially arranged as row vectors and an n x n size preset verification matrix (here, the verification matrix is a matrix with an inverse matrix) A two-dimensional code in which data for each is inserted is pre-printed - Maintaining a serial number storage unit in which serial numbers corresponding to each are stored, a dictionary corresponding to each of a plurality of items pre-specified as usable in the metaverse environment Maintaining an identification code storage unit in which the issued identification code is stored, storing an item matching table in which information on items pre-designated to match each of the plurality of real products among the plurality of items is recorded maintaining a table storage unit, wherein a first user who purchases a first real product, which is any one of the plurality of real products, scans a two-dimensional code printed on a surface of the first real product through a first electronic terminal; As a result of recognizing it, the two-dimensional printed on the surface of the first real product from the first electronic terminal When the first identification matrix extracted through the code is received, an n-dimensional embedding vector corresponding to each digit constituting the serial number of the first real product is generated based on the first identification matrix and the verification matrix. By confirming, the serial number of the first real product is confirmed, and based on the serial number of the first real product, the real product for which the first user has scanned the two-dimensional code through the first electronic terminal is the plurality of real products. Identifying the first real product as the real product scanned by the first user among the plurality of real products by performing identification of which real product corresponds to which of the real products of 1 if the first real product is identified as a real product scanned by a user, checking information on a first item matched to the first real product by referring to the item matching table; If the information is confirmed, a first identification code corresponding to the first item is extracted from the identification code storage unit, a request is made to the first electronic terminal to transmit personal information of the first user, and then the first electronic terminal is requested to transmit the personal information of the first user. When first personal information is received as the personal information of the first user from the terminal, after generating first date information for a current point in time, the first personal information, the first identification code, and the first date information Generating a configured first dataset, when the first dataset is generated, applying the first dataset as an input to a preset hash function to generate a first hash value, and then converting the first hash value to a dictionary Generating a first electronic signature value by encrypting with a set private key, and when the first electronic signature value is generated, the first personal information, the first identification code, the first date information, and the first electronic signature value An item that matches the first physical product by generating a first transaction included, registering the first transaction in a pre-set blockchain network, and then transmitting the first identification code to the first electronic terminal. Completing the issuance of an identification code for

The present invention proposes a blockchain-based metaverse service operation server and its operation method for operating a metaverse service that can provide items matched to real products based on a two-dimensional code on the metaverse environment, Support can be provided so that a user who purchases a real product can more conveniently and quickly receive an item that matches the specific real product in the metaverse environment according to his or her account.

1 is a block chain for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with a two-dimensional code printed on the real product according to an embodiment of the present invention. It is a diagram showing the structure of the base metaverse service operation server.

Figure 2 is a block chain for operating a metaverse service that can provide items matched to the real product on the metaverse environment through linkage with a two-dimensional code printed on the real product according to an embodiment of the present invention. It is a diagram for explaining the operation of the based metaverse service operation server.

3 is a block chain for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with a two-dimensional code printed on the real product according to an embodiment of the present invention. It is a flow chart showing the operation method of the based metaverse service operating server.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. This description is not intended to limit the present invention to specific embodiments, but should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. While describing each drawing, similar reference numerals have been used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, are common knowledge in the art to which the present invention belongs. has the same meaning as commonly understood by the person who has it.

In this document, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated. In addition, in various embodiments of the present invention, each component, functional block, or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by each component are electronic It may be implemented with various known elements or mechanical elements such as circuits, integrated circuits, ASICs (Application Specific Integrated Circuits), and may be implemented separately or two or more may be integrated into one.

On the other hand, the blocks of the accompanying block diagram or the steps of the flowchart are computer program instructions that perform designated functions by being loaded into a processor or memory of a device capable of data processing, such as a general-purpose computer, a special purpose computer, a portable notebook computer, and a network computer. can be interpreted as meaning Since these computer program instructions may be stored in a memory included in a computer device or in a computer readable memory, the functions described in blocks of a block diagram or steps of a flowchart are produced as a product containing instruction means for performing them. It could be. Further, each block or each step may represent a module, segment or portion of code that includes one or more executable instructions for executing specified logical function(s). Also, it should be noted that in some alternative embodiments, functions mentioned in blocks or steps may be executed out of a predetermined order. For example, two blocks or steps shown in succession may be performed substantially simultaneously or in reverse order, and in some cases, some blocks or steps may be omitted.

1, the metaverse service operation server 110 according to an embodiment of the present invention includes an embedding vector storage unit 111, a serial number storage unit 112, an identification code storage unit 113, and a table storage unit. 114, a real product identification unit 115, an item information confirmation unit 116, a first dataset generation unit 117, a first electronic signature value generation unit 118, and an identification code issuance unit 119. do.

In the embedding vector storage unit 111, preset n different natural numbers having a size of 9 or less and a preset n-dimensional embedding vector corresponding to each of the n natural numbers are stored.

For example, when n is '3' and three preset natural numbers having a size of 9 or less are '1, 2, 3', the embedding vector storage unit 111 contains information as shown in Table 1 below. may be stored.

3개의 자연수들3 natural numbers	3차원의 임베딩 벡터3-dimensional embedding vector
1One	[a₁₁ b₁₂ c₁₃][a ₁₁ b ₁₂ c ₁₃ ]
22	[a₂₁ b₂₂ c₂₃][a ₂₁ b ₂₂ c ₂₃ ]
33	[a₃₁ b₃₂ c₃₃][a ₃₁ b ₃₂ c ₃₃ ]

On the other hand, for each of the plurality of real products in the present invention, a serial number of different n digits for identifying each real product (here, the number located at each digit constituting the serial number is the n natural numbers It is assumed that ) is pre-allocated.

For example, when 'n=3' and the plurality of real products are referred to as 'real product 1, real product 2, real product 3, ...', Table 2 below for each of the plurality of real products As such, different three-digit serial numbers for identifying each physical product may be pre-assigned.

복수의 실물 상품들Multiple Physical Goods	3자릿수의 일련번호3-digit serial number
실물 상품 1physical product 1	213213
실물 상품 2 physical product 2	321321
실물 상품 3 physical product 3	111111
......	......

In addition, on the surface of each of the plurality of real products, an n x n size array matrix in which n dimensional embedding vectors corresponding to each digit constituting the serial number of each real product are sequentially arranged as row vectors and an n x n size array matrix It is assumed that a two-dimensional code in which data for an n x n size identification matrix generated by matrix multiplication of a preset verification matrix (here, the verification matrix is a matrix having an inverse matrix) is pre-printed.

For example, let n be '3', and the plurality of real products are referred to as 'real product 1, real product 2, real product 3, ...', and the 3-digit serial number for each real product is shown in Table 2 above. If it is assumed that it is allocated as in, the identification matrix for each of the plurality of real products may be configured as shown in Table 3 below.

복수의 실물 상품들Multiple Physical Goods	식별 행렬identification matrix
실물 상품 1physical product 1
실물 상품 2 physical product 2
실물 상품 3 physical product 3
......	......

In Table 3, 'A, B, C, ...' means an identification matrix for 'real product 1, real product 2, real product 3, ...', which are the plurality of real products, and '

' means a preset verification matrix of 3 x 3 size.

As assumed above, a two-dimensional code inserted with data for an identification matrix for each of the plurality of real products as shown in Table 3 may be pre-printed on the surface of each of the plurality of real products.

Here, the two-dimensional code refers to a code capable of inserting information such as various characters on a two-dimensional image pattern, and QR codes (Quick Response Codes), veri codes, dot codes, etc. are used or Korean registered patents A digital code that can express predetermined data on a two-dimensional image through a pixel space composed of a plurality of points disclosed in No. 10-1897960 may be used. In this regard, the picture shown in FIG. 2 shows a digital code 211 capable of expressing predetermined data on a two-dimensional image through a pixel space composed of a plurality of yellow dots on the surface of a predetermined real product 210. It shows an example inserted as a two-dimensional code. As shown at reference numeral 211, this digital code is composed of yellow dots, so when compared with a white background, the color contrast is not clear, so it is difficult to clearly observe with the naked eye, but the electronic terminal Since the camera of can perform identification of yellow dots differently from human vision, the pattern of yellow dots can be clearly identified through an electronic terminal.

In this situation, the serial number storage unit 112 of the metabus service operation server 110 stores a serial number corresponding to each of a plurality of pre-designated real products.

For example, the serial number storage unit 112 may store information as shown in Table 2 above.

The identification code storage unit 113 stores pre-issued identification codes corresponding to each of a plurality of items pre-specified as usable in the metaverse environment.

For example, when the plurality of items are referred to as 'item 1, item 2, item 3, ...', information as shown in Table 4 below may be stored in the identification code storage unit 113.

복수의 아이템들multiple items	식별 코드identification code
아이템 1item 1	식별 코드 1identification code 1
아이템 2 item 2	식별 코드 2 identification code 2
아이템 3 item 3	식별 코드 3 identification code 3
......	......

The table storage unit 114 stores an item matching table in which information on items pre-designated to match each of the plurality of real products among the plurality of items is recorded.

For example, an item matching table such as Table 5 below may be stored in the table storage unit 114 .

실물 상품 1physical product 1	아이템 1item 1
실물 상품 2 physical product 2	아이템 2 item 2
실물 상품 3 physical product 3	아이템 3 item 3
......	......

The real product identification unit 115 allows the first user 140 who has purchased a first real product, which is any one of the plurality of real products, to display the first real product through the first electronic terminal 145 on the surface of the first real product. As the printed 2D code is scanned and recognized, when the first identification matrix extracted through the 2D code printed on the surface of the first real product is received from the first electronic terminal 145, the first identification matrix is received. Based on the identification matrix and the verification matrix, the serial number of the first real product is confirmed by checking an n-dimensional embedding vector corresponding to each digit constituting the serial number of the first real product, Based on the serial number of the first real product, whether the first user 140 scans the 2D code through the first electronic terminal 145 to which real product among the plurality of real products. By performing identification on , the first real product is identified as a real product scanned by the first user 140 among the plurality of real products.

At this time, according to one embodiment of the present invention, the real product identification unit 115 may include a batch matrix restoration unit 120, a serial number confirmation unit 121, and an identification processing unit 122.

When the first user 140 scans and recognizes the two-dimensional code printed on the surface of the first real product through the first electronic terminal 145, the disposition matrix restorer 120 generates a first electronic terminal. If the first identification matrix extracted through the two-dimensional code printed on the surface of the first physical product is received from (145), the first identification matrix is multiplied by an inverse matrix to the verification matrix, thereby generating a first identification matrix. Restore the batch matrix.

When the first array matrix is restored, the serial number checking unit 121 corresponds to the same embedding vector as each of the n row vectors constituting the first array matrix and stores a natural number from the embedding vector storage unit 111. By sequentially extracting and configuring n-digit serial numbers, the serial number of the first real product is confirmed.

When the serial number of the first real product is confirmed, the identification processing unit 122 determines, for each of the plurality of real products, a serial number corresponding to each real product stored in the serial number storage unit 112; The serial number of the first real product is compared with each other, and a real product having a serial number matching the serial number of the first real product among the plurality of real products is the real product scanned by the first user 140. It is identified as the first physical product.

Hereinafter, operations of the batch matrix restorer 120, the serial number checker 121, and the identification processor 122 will be described in detail by way of example.

First, as in the above example, when n is set to '3', the first user (140 ) scans and recognizes the two-dimensional code printed on the surface of 'real product 1' through the camera mounted on the first electronic terminal 145, and identification of 'real product 1' from the two-dimensional code Assume that the first identification matrix is extracted as a matrix.

At this time, the first identification matrix is a three-dimensional embedding vector '2', '1', '3' corresponding to each digit constituting '213', which is the serial number of 'real product 1'. [a ₂₁ b ₂₂ c ₂₃ ]', '[a ₁₁ b ₁₂ c ₁₃ ]', '[a ₃₁ b ₃₂ c ₃₃ ]' is a 3 x 3 first array matrix in which row vectors are sequentially arranged.

' and a preset validation matrix of size 3 x 3 '

' is a matrix generated by matrix multiplication with each other, '

'Let's assume it's the same.

Then, the first electronic terminal 145 transmits the first identification matrix ' to the metaverse service operation server 110.

' can be sent.

In this way, the two-dimensional code printed on the surface of 'real product 1' is scanned and recognized by the first electronic terminal 145, and the first identification matrix '

As ' is extracted, the first identification matrix ' from the first electronic terminal 145 to the metaverse service operation server 110

' is received, the disposition matrix restorer 120 determines the first identification matrix '

'Eh, the verification matrix '

' which is the inverse of '

By multiplying by ', the first arrangement matrix '

' can be restored.

In this way, when the first configuration matrix is restored by the configuration matrix restoration unit 120, the serial number check unit 121 determines the first configuration matrix ' from the embedding vector storage unit 111 as shown in Table 1.

'[a ₂₁ b ₂₂ c ₂₃ ]', '[a ₁₁ b ₁₂ c ₁₃ ]', '[a ₃₁ b ₃₂ c ₃₃ ]', which are the three row vectors constituting ', are stored in correspondence with the same embedding vector. By sequentially extracting '2', '1', and '3', which are natural numbers, to form a three-digit serial number, the serial number of 'real product 1' can be identified as '213'.

In this way, when the serial number '213' is confirmed by the serial number confirmation unit 121, the identification processing unit 122 corresponds to each real product stored in the serial number storage unit 112 as shown in Table 2. The serial numbers '213, 321, 111, ...' and the serial number '213' can be compared with each other.

As a result, if it is confirmed that both serial numbers for 'real product 1' among 'real product 1, real product 2, real product 3, ...' match each other, the identification processing unit 122 determines the 'real product 1' may be finally identified as being a real product scanned by the first user 140.

When the first real product is identified as a real product scanned by the first user 140, the item information checking unit 116 refers to the item matching table for a first item matched with the first real product. Check information.

When information on the first item is confirmed, the first dataset generator 117 extracts a first identification code corresponding to the first item from the identification code storage 113, and the first electronic terminal 145 ), after requesting to transmit the personal information of the first user 140, when the first personal information is received as the personal information of the first user 140 from the first electronic terminal 145, a request for the current point in time is received. 1 After generating date information, a first dataset composed of the first personal information, the first identification code, and the first date information is created.

Here, personal information refers to unique information for identifying an individual user, such as a resident registration number and a mobile phone number.

When the first data set is generated, the first electronic signature value generator 118 generates a first hash value by applying the first data set as an input to a preset hash function, and then converts the first hash value to Encrypting with a preset private key to generate a first electronic signature value.

When the first electronic signature value is generated, the identification code issuing unit 119 generates a first transaction including the first personal information, the first identification code, the first date information, and the first electronic signature value. and, after registering the first transaction in the pre-set blockchain network 10 and transmitting the first identification code to the first electronic terminal 145, identification of an item matching the first real product Complete the issuance of the code.

For example, as in the foregoing example, when 'real product 1' is identified as a real product scanned by the first user 140 by the real product identification unit 115, the item information confirmation unit 116 checks the table above. Information on 'item 1' matched to 'actual product 1' may be checked by referring to the item matching table shown in Fig. 5 .

In this way, when the information on 'item 1' is confirmed by the item information checking unit 116, the first dataset generator 117 stores 'item 1' from the identification code storage unit 113 as shown in Table 4 above. A corresponding 'identification code 1' may be extracted, and the first electronic terminal 145 may be requested to transmit personal information of the first user 140 .

In this case, when it is assumed that 'personal information 1' is received as personal information of the first user 140 from the first electronic terminal 145, the first data set generator 117 provides the first date information for the current point in time. can create

At this time, when the first date information is 'March 10, 2022 17:15', the first dataset generator 117 determines 'personal information 1', 'identification code 1' and '2022 year 3'. 'Dataset 1' consisting of '17:15 on the 10th of the month' can be created.

In this way, when 'Dataset 1' is generated by the first dataset generator 117, the first electronic signature value generator 118 applies 'Dataset 1' to a preset hash function as an input to generate '26d103c620a31345ag57qat327891703'. After generating a first hash value such as ', the first hash value '26d103c620a31345ag57qat327891703' may be encrypted with a preset private key to generate 'electronic signature value 1'.

Then, the identification code issuer 119 generates 'transaction 1' including 'personal information 1', 'identification code 1', 'March 10, 2022 at 17:15' and 'electronic signature value 1'. 'Transaction 1' can be registered in the preset blockchain network 10.

At this time, according to one embodiment of the present invention, the identification code issuing unit 119 will propagate 'transaction 1' to the blockchain network 10 in order to register 'transaction 1' in the blockchain network 10. can Then, any one of the plurality of

nodes

11, 12, 13, 14, 15, 16 constituting the blockchain network 10 creates 'block 1' including 'transaction 1', It can propagate to a plurality of nodes (11, 12, 13, 14, 15, 16). Accordingly, when 'block 1' is received by the plurality of

nodes

11, 12, 13, 14, 15, and 16, the plurality of

nodes

11, 12, 13, 14, 15, and 16 send 'Transaction 1' can be shared by linking 'block 1' to the blockchain data in a chain based on the previous block chained to the stored blockchain data.

In this way, when 'transaction 1' is registered in the blockchain network 10, the identification code issuing unit 119 transmits 'identification code 1' to the first electronic terminal 145, thereby matching it with 'real product 1'. It is possible to complete the issuance of an identification code for an item to be processed.

According to one embodiment of the present invention, when the identification code issuing unit 119 transmits the first identification code to the first electronic terminal 145, in order to prevent the first identification code from being exposed to others, The first identification code may be encrypted and transmitted to the first electronic terminal 145 .

In this regard, according to one embodiment of the present invention, the identification code issuing unit 119 may include an encryption event generating unit 123, an encryption key generating unit 124, and an issuing unit 125.

When the first transaction is registered in the blockchain network 10, the encryption event generator 123 generates an encryption event to encrypt and transmit the first identification code.

When the encryption event occurs, the encryption key generation unit 124 extracts n diagonal elements corresponding to the main diagonal of the first identification matrix and concatenates the n diagonal elements to concatenate them. After generating the data, the concatenated data is applied as an input to a preset encryption key generation function to generate an encryption key.

When the encryption key is generated, the issuer 125 encrypts the first identification code with the encryption key and transmits the encrypted first identification code and the encryption key generating function to the first electronic terminal 145. , Issuance of an identification code for an item matching the first real product is completed.

Hereinafter, operations of the encryption event generating unit 123, the encryption key generating unit 124, and the issuing unit 125 will be described in detail by way of example.

First, as in the above example, when n is set to '3' and 'Transaction 1' is registered in the blockchain network 10 by the identification code issuing unit 119, the encryption event generating unit 123 may generate an encryption event to encrypt and transmit 'identification code 1'.

In this way, when the encryption event is generated by the encryption event generator 123, the encryption key generator 124 generates the first identification matrix '

'a ₂₁ v ₁₁ +b ₂₂ v ₂₁ +c ₂₃ v ₃₁ , a ₁₁ v ₁₂ +b ₁₂ v ₂₂ +c ₁₃ v ₃₂ , a ₃₁ v ₁₃ +b ₃₂ v ₂₃ +c ₃₃ v ₃₃ ', and the three diagonal components 'a ₂₁ v ₁₁ +b ₂₂ v ₂₁ +c ₂₃ v ₃₁ , a ₁₁ v ₁₂ +b ₁₂ v ₂₂ +c ₁₃ v ₃₂ , a ₃₁ v ₁₃ +b ₃₂ v ₂₃ +c ₃₃ v ₃₃ ' can be concatenated to create concatenated data.

Thereafter, the encryption key generation unit 124 may generate an encryption key by applying the concatenated data as an input to a preset encryption key generation function.

In this way, when the encryption key is generated by the encryption key generator 124, the issuer 125 encrypts 'identification code 1' with the encryption key, and then uses the encrypted 'identification code 1' and the encryption key generation function. By transmitting to the first electronic terminal 145, issuance of an identification code for an item matching 'real product 1' may be completed.

At this time, when the first electronic terminal 145 receives the encrypted first identification code and the encryption key generation function from the metaverse service operation server 110, the two-dimensional code printed on the surface of the first real product After extracting the n diagonal components corresponding to the main diagonal of the first identification matrix extracted through and generating the concatenated data by concatenating the n diagonal components, the concatenated data is metaverse service operating server ( 110), the encryption key is generated by applying the received encryption key generation function as an input, and when the encryption key is generated, the encrypted first identification code can be decrypted with the encryption key.

Hereinafter, the operation of the first electronic terminal 145 will be described in detail by way of example.

First, as in the above example, as the issuing unit 125 transmits the encrypted 'identification code 1' and the encryption key generation function to the first electronic terminal 145, the metaverse service operation server 110 1 Assume that the electronic terminal 145 receives the encrypted 'identification code 1' and the encryption key generating function.

Then, the first electronic terminal 145 is the 'first identification matrix extracted through the two-dimensional code printed on the surface of 'real product 1'.

'a ₂₁ v ₁₁ +b ₂₂ v ₂₁ +c ₂₃ v ₃₁ , a ₁₁ v ₁₂ +b ₁₂ v ₂₂ +c ₁₃ v ₃₂ , a ₃₁ v ₁₃ +b ₃₂ v ₂₃ +c ₃₃ v ₃₃ ', and the three diagonal components 'a ₂₁ v ₁₁ +b ₂₂ v ₂₁ +c ₂₃ v ₃₁ , a ₁₁ v ₁₂ +b ₁₂ v ₂₂ +c ₁₃ The concatenated data may be generated by concatenating v ₃₂ , a ₃₁ v ₁₃ +b ₃₂ v ₂₃ +c ₃₃ v ₃₃ '.

After that, the first electronic terminal 145 may generate the encryption key by applying the concatenated data as an input to the encryption key generation function received from the metaverse service operation server 110 .

In this way, when the encryption key is generated by the first electronic terminal 145, the first electronic terminal 145 can decrypt the 'identification code 1' encrypted with the encryption key.

According to one embodiment of the present invention, the metaverse service operation server 110 includes a personal information request unit 126, a transaction search unit 127, a hash value generator 128, a verification unit 129, and an item activation processing unit. (130) may be further included.

After the first identification code is transmitted to the first electronic terminal 145, the personal information requesting unit 126 receives an access request command for the metaverse service from the first electronic terminal 145. In a state in which the electronic terminal 145 is provided with a metaverse environment according to the account of the first user 140, the first identification code is received from the first electronic terminal 145, and an activation command for the first item is received. When this is received, the first electronic terminal 145 is requested to transmit the personal information of the first user 140 .

When the first personal information is received from the first electronic terminal 145 as personal information of the first user 140, the transaction search unit 127 receives the first personal information and the first personal information from the blockchain network 10. The first transaction including the first identification code is retrieved.

When the first transaction is retrieved, the hash value generator 128 generates the first dataset using the first personal information, the first identification code, and the first date information included in the first transaction. After construction, the first hash value is generated by applying the first dataset as an input to the hash function.

When the first hash value is generated, the verification unit 129 decrypts the first electronic signature value with a public key forming a key pair with the private key to generate a decryption value, and then the first hash value is Verification of the first electronic signature value is performed by checking whether they match each other.

When the verification of the first electronic signature value is completed, the item activation processing unit 130 confirms that the first identification code is a code normally issued to the first user 140, and stores the identification code storage unit 113. Referring to, after identifying the first item corresponding to the first identification code, in the metaverse environment according to the account of the first user 140, the first item is activated to become usable.

Hereinafter, operations of the personal information requesting unit 126, the transaction search unit 127, the hash value generator 128, the verification unit 129, and the item activation processing unit 130 will be described in detail by way of example.

First, after 'identification code 1' is transmitted to the first electronic terminal 145 by the identification code issuing unit 119, the metaverse service is transferred from the first electronic terminal 145 to the metaverse service operation server 110. As the access request command for is received, in a state where the metaverse environment according to the account of the first user 140 is provided to the first electronic terminal 145, the metaverse service operation server from the first electronic terminal 145 ( In step 110), it is assumed that an activation command for 'item 1' is received while 'identification code 1' is received.

Then, the personal information requesting unit 126 may request the first electronic terminal 145 to transmit the personal information of the first user 140 .

At this time, when 'personal information 1' is received as personal information of the first user 140 from the first electronic terminal 145, the transaction search unit 127 receives 'personal information 1' from the blockchain network 10. You can search for 'transaction 1' that includes ' and 'identification code 1'.

In this way, when 'transaction 1' is searched by the transaction search unit 127, the hash value generator 128 includes 'personal information 1', 'identification code 1' and '2022 year 3' included in 'transaction 1'. After configuring 'Dataset 1' using '17:15 on the 10th of the month', 'Dataset 1' is applied as an input to the hash function to generate the first hash value such as '26d103c620a31345ag57qat327891703'.

Then, the verification unit 129 decrypts the 'electronic signature value 1' with the public key forming the key pair with the private key to generate a decryption value such as '26d103c620a31345ag57qat327891703', and then converts the first hash value to the decryption value. can be compared

As a result, the verification unit 129 can complete the verification of 'electronic signature value 1' because it is confirmed that both values coincide with each other.

In this way, when the verification of the 'electronic signature value 1' is completed by the verification unit 129, the item activation processing unit 130 confirms that the 'identification code 1' is a code normally issued to the first user 140, and , After identifying 'item 1' corresponding to 'identification code 1' with reference to the identification code storage unit 113 as shown in Table 4, in the metaverse environment according to the account of the first user 140, ' Item 1' can be activated so that it can be used.

In relation to this, if 'item 1' is an accessory that can be worn on the avatar, the item activation processing unit 130 may activate 'item 1' in the form of wearing it on the avatar of the first user 140.

According to one embodiment of the present invention, the metabus service operation server 110 includes a sales amount requesting unit 131, a sales information generating unit 132, a sales registration processing unit 133, a payment method information requesting unit 135, It may further include a payment processing completion unit 136, a second dataset generation unit 137, a second electronic signature value generation unit 138, and a sales processing completion unit 139.

The sales amount requesting unit 131 receives the first personal information and the first identification code from the first electronic terminal 145 and registers sales information for the first identification code in the sales information database 134. When a sales information registration request command is received, the first electronic terminal 145 is requested to transmit sales price information for the sale of the first identification code.

The sales information generation unit 132 receives the first sales amount information as the sales amount information of the first identification code from the first electronic terminal 145, the first personal information, the first identification code, and the first sales amount information. 1 First sales information composed of sales amount information is generated.

When the first sales information is generated, the sales registration processing unit 133 processes sales registration for the first identification code by storing the first sales information in the sales information database 134 .

After sales registration for the first identification code is processed, the payment method information requesting unit 135 allows the first user 140 to sell from the second electronic terminal 155 possessed by the second user 150. When a purchase request command requesting purchase of the registered first identification code is received, a request is made to transmit payment method information for payment to the second electronic terminal 155 .

When the first payment method information is received from the second electronic terminal 155, the payment processing completion unit 136 refers to the sales information database 134 to obtain the first sales amount information constituting the first sales information. After confirmation, the payment process for the amount according to the first sales amount information is completed based on the first payment method information.

When the payment process for the amount according to the first sales amount information is completed, the second dataset generation unit 137 refers to the sales information database 134, and the first identification constituting the first sales information. After extracting the code and requesting the second electronic terminal 155 to transmit the personal information of the second user 150, the personal information of the second user 150 is transmitted from the second electronic terminal 155 to the second user 150. When personal information is received, second date information for a current point in time is generated, and then a second data set composed of the second personal information, the first identification code, and the second date information is created.

When the second data set is generated, the second electronic signature value generator 138 applies the second data set as an input to the hash function to generate a second hash value, and then converts the second hash value to the hash function. Encryption is performed with the private key to generate a second electronic signature value.

When the second electronic signature value is generated, the sales processing completion unit 139 generates a second transaction including the second personal information, the first identification code, the second date information, and the second electronic signature value. And, after registering the second transaction in the blockchain network 10 and transmitting the first identification code to the second electronic terminal 155, the sales process for the first identification code is completed.

Hereinafter, a sales amount requesting unit 131, a sales information generating unit 132, a sales registration processing unit 133, a payment method information requesting unit 135, a payment processing completion unit 136, a second dataset generating unit ( 137), the operation of the second electronic signature value generating unit 138 and the sales processing completion unit 139 will be described in detail by way of example.

First, while 'personal information 1' and 'identification code 1' are received from the first electronic terminal 145 to the metaverse service operation server 110, sales information for 'identification code 1' is stored in the sales information database (134). Suppose that a sales information registration request command requesting registration in ) is received.

Then, the sales price requesting unit 131 may request the first electronic terminal 145 to transmit sales price information for the sale of 'identification code 1'.

At this time, when it is assumed that '23,000 won', which is the first sales amount information, is received as the sales amount information of 'identification code 1' from the first electronic terminal 145, the sales information generator 132 sets 'personal information 1' , 'Sales information 1' consisting of 'identification code 1' and '23,000 won' can be generated.

In this way, when 'sale information 1' is generated by the sales information generating unit 132, the sales registration processing unit 133 stores 'sale information 1' in the sales information database 134, Sales registration can be processed.

In this way, after the sales registration for 'identification code 1' is processed by the sales registration processing unit 133, the metaverse service operation server 110 from the second electronic terminal 155 possessed by the second user 150 Suppose that a purchase request command requesting to purchase 'identification code 1' registered for sale by the first user 140 is received.

Then, the payment method information requesting unit 135 may request the second electronic terminal 155 to transmit payment method information for payment.

At this time, when it is assumed that 'credit card information' is received as the first payment method information from the second electronic terminal 155, the payment processing completion unit 136 refers to the sales information database 134 to obtain 'sale information 1 After confirming '23,000 won' constituting ', it is possible to complete payment processing for the amount according to '23,000 won' based on 'credit card information'.

Then, the second dataset generation unit 137 may refer to the sales information database 134 to extract the 'identification code 1' constituting the 'sales information 1', and send it to the second electronic terminal 155. , may request transmission of the personal information of the second user 150 .

At this time, when it is assumed that 'personal information 2' is received as personal information of the second user 150 from the second electronic terminal 155, the second data set generator 137 provides second date information for the current point in time. can create

At this time, when the second date information is 'March 10, 2022 17:45', the second dataset generator 137 determines 'personal information 2', 'identification code 1' and '2022 year 3'. 'Dataset 2' consisting of '17:45 on the 10th of the month' can be created.

In this way, when 'Dataset 2' is generated by the second dataset generator 137, the second electronic signature value generator 138 applies 'Dataset 2' as an input to the hash function to generate '51c241d478q2269nm14wrt14211020kz' After generating the second hash value, '51c241d478q2269nm14wrt14211020kz', which is the second hash value, may be encrypted with the private key to generate 'electronic signature value 2'.

Then, the sales processing completion unit 139 generates 'transaction 2' including 'personal information 2', 'identification code 1', 'March 10, 2022 at 17:45' and 'electronic signature value 2'. and 'Transaction 2' can be registered in the blockchain network 10.

At this time, according to one embodiment of the present invention, the sales processing completion unit 139 will propagate 'transaction 2' to the blockchain network 10 in order to register 'transaction 2' in the blockchain network 10. can Then, any one of the plurality of

nodes

11, 12, 13, 14, 15, 16 constituting the blockchain network 10 creates 'block 2' including 'transaction 2', It can propagate to a plurality of nodes (11, 12, 13, 14, 15, 16). Accordingly, when 'block 2' is received by the plurality of

nodes

11, 12, 13, 14, 15, and 16, the plurality of

nodes

11, 12, 13, 14, 15, and 16 send 'Transaction 2' can be shared by linking 'block 2' to the blockchain data in a chain based on the previous block chained to the stored blockchain data.

In this way, when 'transaction 2' is registered in the blockchain network 10, sales processing completion unit 139 transmits 'identification code 1' to the second electronic terminal 155, thereby selling for 'identification code 1'. processing can be completed.

In step S310, an embedding vector storage unit in which n different natural numbers having a size of 9 or less and a preset n-dimensional embedding vector corresponding to each of the n natural numbers are stored are stored.

In step S320, a plurality of pre-designated real products (for each of the plurality of real products, different n-digit serial numbers for identifying each real product (here, located at each digit constituting the serial number) is designated as any one of the n natural numbers) is pre-assigned, and on the surface of each of the plurality of real products, n dimensions corresponding to the numbers of each digit constituting the serial number of each real product. An n x n size identification matrix generated by matrix multiplication of an n x n size array matrix in which the embedding vector of is sequentially arranged as a row vector and an n x n size preset verification matrix (here, the verification matrix is a matrix in which an inverse matrix exists). The two-dimensional code into which the data for is inserted is pre-printed) Maintains a serial number storage unit in which serial numbers corresponding to each are stored.

In step S330, an identification code storage unit in which a pre-issued identification code corresponding to each of a plurality of items previously designated as usable in the metaverse environment is stored is maintained.

In step S340, a table storage unit is maintained in which an item matching table in which information on items pre-designated to match each of the plurality of real products among the plurality of items is recorded is stored.

In step S350, a first user who purchases a first real product, which is any one of the plurality of real products, scans and recognizes a two-dimensional code printed on the surface of the first real product through a first electronic terminal. According to the above, if the first identification matrix extracted through the two-dimensional code printed on the surface of the first real product is received from the first electronic terminal, based on the first identification matrix and the verification matrix, The serial number of the first physical product is confirmed by checking the n-dimensional embedding vector corresponding to each digit constituting the serial number of the first physical product, and based on the serial number of the first physical product, By identifying which real product among the plurality of real products corresponds to the real product for which the first user has scanned the two-dimensional code through the first electronic terminal, the real product among the plurality of real products As the real product scanned by the first user, the first real product is identified.

In step S360, when the first real product is identified as the real product scanned by the first user, information on a first item matched with the first real product is checked by referring to the item matching table.

In step S370, if information on the first item is confirmed, a first identification code corresponding to the first item is extracted from the identification code storage unit, and the first user's personal information is transmitted to the first electronic terminal. After requesting to transmit information, when first personal information is received from the first electronic terminal to the personal information of the first user, after generating a first date information for a current point in time, the first personal information, the A first dataset consisting of the first identification code and the first date information is generated.

In step S380, when the first dataset is generated, a first hash value is generated by applying the first dataset as an input to a preset hash function, and then the first hash value is encrypted with a preset private key. A first electronic signature value is generated.

In step S390, when the first electronic signature value is generated, a first transaction including the first personal information, the first identification code, the first date information, and the first electronic signature value is generated, and the After the first transaction is registered in a preset blockchain network, the first identification code is transmitted to the first electronic terminal, thereby completing the issuance of the identification code for the item matching the first real product.

At this time, according to one embodiment of the present invention, in step S350, as the first user scans and recognizes the two-dimensional code printed on the surface of the first real product through the first electronic terminal, When the first identification matrix extracted through the two-dimensional code printed on the surface of the first physical product is received from the first electronic terminal, by multiplying the first identification matrix by an inverse matrix for the verification matrix, restoring a first constellation matrix; when the first constellation matrix is restored, a natural number corresponding to an embedding vector identical to each of the n row vectors constituting the first constellation matrix is stored from the embedding vector storage unit; Confirming the serial number of the first real product by sequentially extracting and configuring n-digit serial numbers, and when the serial number of the first real product is confirmed, for each of the plurality of real products, The serial number corresponding to each real product stored in the number storage unit is compared with the serial number of the first real product, and the serial number that matches the serial number of the first real product among the plurality of real products. It may include identifying a real product having as the first real product, which is a real product scanned by the first user.

In addition, according to one embodiment of the present invention, in step S390, when the first transaction is registered in the blockchain network, generating an encryption event for encrypting and transmitting the first identification code, the encryption When an event occurs, n diagonal elements corresponding to the main diagonal of the first identification matrix are extracted, concatenated data is generated by concatenating the n diagonal elements, and then the concatenated data is converted to a preset encryption key generation function. Generating an encryption key by applying the input as an input, and when the encryption key is generated, encrypting the first identification code with the encryption key, and then converting the encrypted first identification code and the encryption key generation function to the first electronic terminal. By transmitting to, it may include the step of completing the issuance of the identification code for the item matching the first real product.

At this time, when the first electronic terminal receives the encrypted first identification code and the encryption key generation function from the metaverse service operation server, the extracted through the two-dimensional code printed on the surface of the first real product After generating the concatenated data by extracting the n diagonal components corresponding to the main diagonal of the first identification matrix and concatenating the n diagonal components, the concatenated data is converted into the concatenated data received from the metaverse service operation server. The encryption key may be generated by applying the function as an input to an encryption key generation function, and when the encryption key is generated, the encrypted first identification code may be decrypted using the encryption key.

In addition, according to one embodiment of the present invention, the operating method of the metaverse service operating server is such that after the first identification code is transmitted to the first electronic terminal, access to the metaverse service from the first electronic terminal As a request command is received, in a state in which a metaverse environment according to an account of the first user is provided to the first electronic terminal, while the first identification code is received from the first electronic terminal, the first item requesting transmission of the personal information of the first user to the first electronic terminal, when an activation command for the first user is received; If received, retrieving the first transaction including the first personal information and the first identification code from the blockchain network, if the first transaction is retrieved, the first transaction included in the first transaction 1 constructing the first dataset using personal information, the first identification code, and the first date information, and then applying the first dataset as an input to the hash function to generate the first hash value; , When the first hash value is generated, after decrypting the first electronic signature value with a public key forming a key pair with the private key to generate a decryption value, whether the first hash value matches the decryption value By verifying, when the verifying of the first electronic signature value and the verifying of the first electronic signature value are completed, confirming that the first identification code is a code normally issued to the first user, After identifying the first item corresponding to the first identification code with reference to the identification code storage unit, in the metaverse environment according to the account of the first user, activation processing is performed so that the first item becomes usable. It may further include steps to do.

In addition, according to one embodiment of the present invention, the operation method of the metaverse service operation server is received from the first electronic terminal, the first personal information and the first identification code, for the first identification code requesting transmission of sales price information for the sale of the first identification code to the first electronic terminal when a sales information registration request command requesting to register sales information in a sales information database is received; Generating first sales information composed of the first personal information, the first identification code, and the first sales amount information when first sales amount information is received as the sales amount information of the first identification code from the electronic terminal. Step, if the first sales information is generated, processing sales registration for the first identification code by storing the first sales information in the sales information database, processing sales registration for the first identification code After that, if a purchase request command requesting to purchase the first identification code registered for sale by the first user is received from the second electronic terminal possessed by the second user, payment is made to the second electronic terminal. requesting transmission of payment method information for the second electronic terminal, checking the first sales price information constituting the first sales information by referring to the sales information database when the first payment method information is received from the second electronic terminal; and then, based on the first payment method information, completing the payment process for the amount according to the first sales amount information. When the payment process for the amount according to the first sales amount information is completed, the After extracting the first identification code constituting the first sales information with reference to a sales information database, and requesting transmission of personal information of the second user to the second electronic terminal, from the second electronic terminal As the personal information of the second user, when second personal information is received, after generating second date information for the current point in time, Generating a second dataset composed of the second personal information, the first identification code, and the second date information, and when the second dataset is generated, applying the second dataset as an input to the hash function After generating a second hash value, generating a second electronic signature value by encrypting the second hash value with the private key, and when the second electronic signature value is generated, the second personal information, the first After generating a second transaction including an identification code, the second date information, and the second electronic signature value, and registering the second transaction in the blockchain network, the first identification code is converted into the second electronic signature value. The method may further include completing sales processing for the first identification code by transmitting to the terminal.

In the above, the operating method of the metaverse service operating server according to an embodiment of the present invention has been described with reference to FIG. 3 . Here, since the operation method of the metaverse service operation server according to an embodiment of the present invention may correspond to the configuration of the operation of the metaverse service operation server 110 described using FIGS. 1 and 2, A detailed description will be omitted.

Blockchain-based meta for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product according to an embodiment of the present invention. The operating method of the bus service operation server may be implemented as a computer program stored in a storage medium for execution through a combination with a computer.

In addition, a blockchain-based operation of a metaverse service that can provide items matching the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product according to an embodiment of the present invention. The operating method of the metaverse service operating server may be implemented in the form of computer program instructions for execution through a combination with a computer and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the medium may be those specially designed and configured for the present invention or those known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler.

As described above, the present invention has been described by specific details such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , Those skilled in the art in the field to which the present invention belongs can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and it will be said that not only the claims to be described later, but also all modifications equivalent or equivalent to these claims belong to the scope of the present invention. .

Claims

A blockchain-based metaverse service operation server for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product. in

an embedding vector storage unit which stores n different natural numbers having a size of 9 or less and a preset n-dimensional embedding vector corresponding to each of the n natural numbers;

A plurality of pre-specified real goods - For each of the plurality of real goods, a serial number of different n digits for identifying each real product (here, the number located at each digit constituting the serial number is the n designated as one of natural numbers) is pre-assigned, and on the surface of each of the plurality of real products, an n-dimensional embedding vector corresponding to each digit constituting the serial number of each real product is sequentially Data for an identification matrix of size n x n generated by matrix multiplication of an n x n array matrix arranged as a row vector and a preset verification matrix of n x n size (here, the verification matrix is a matrix having an inverse matrix) is inserted. a two-dimensional code is pre-printed - a serial number storage unit in which serial numbers corresponding to each are stored;

An identification code storage unit in which a pre-issued identification code corresponding to each of a plurality of items pre-specified as usable in the metaverse environment is stored;

a table storage unit storing an item matching table in which information on items pre-designated to match each of the plurality of real products among the plurality of items is recorded;

As a first user who purchases a first real product, which is any one of the plurality of real products, scans and recognizes a two-dimensional code printed on the surface of the first real product through a first electronic terminal, When the first identification matrix extracted through the two-dimensional code printed on the surface of the first real product is received from the first electronic terminal, based on the first identification matrix and the verification matrix, By checking the n-dimensional embedding vector corresponding to each digit constituting the serial number, the serial number of the first real product is confirmed, and based on the serial number of the first real product, the first user The first user scans among the plurality of real products by identifying whether the real product for which the two-dimensional code is scanned through the first electronic terminal corresponds to which real product among the plurality of real products. As one real product, a real product identification unit for identifying the first real product;

an item information checking unit configured to check information on a first item matched with the first real product by referring to the item matching table when the first real product is identified as a real product scanned by the first user;

When the information on the first item is confirmed, a first identification code corresponding to the first item is extracted from the identification code storage unit, and a request is made to transmit personal information of the first user to the first electronic terminal. Then, when first personal information is received as personal information of the first user from the first electronic terminal, first date information for a current point in time is generated, and then the first personal information, the first identification code and a first data set generating unit generating a first data set composed of the first date information;

When the first dataset is generated, a first hash value is generated by applying the first dataset as an input to a preset hash function, and then the first hash value is encrypted with a preset private key to obtain a first electronic signature value. A first electronic signature value generating unit for generating; and

When the first electronic signature value is generated, a first transaction including the first personal information, the first identification code, the first date information, and the first electronic signature value is generated, and the first transaction is pre-transmitted. Identification code issuing unit that completes issuance of an identification code for an item matched to the first physical product by transmitting the first identification code to the first electronic terminal after registration in the established blockchain network

A metaverse service operation server that includes a.
According to claim 1,

The real product identification unit

As the first user scans and recognizes the two-dimensional code printed on the surface of the first physical product through the first electronic terminal, printing is performed on the surface of the first physical product from the first electronic terminal. an alignment matrix restorer restoring a first alignment matrix by multiplying the first identification matrix by an inverse matrix of the verification matrix when the first identification matrix extracted through the extracted 2D code is received;

When the first array matrix is restored, natural numbers corresponding to the same embedding vector as each of the n row vectors constituting the first array matrix are sequentially extracted from the embedding vector storage unit to obtain an n-digit serial number. By configuring to, a serial number check unit for checking the serial number of the first physical product; and

When the serial number of the first real product is confirmed, for each of the plurality of real products, the serial number corresponding to each real product stored in the serial number storage unit and the serial number of the first real product Identification processing unit for comparing with each other and identifying a real product having a serial number matching the serial number of the first real product among the plurality of real products as the first real product, which is a real product scanned by the first user.

A metaverse service operation server that includes a.
According to claim 1,

The identification code issuing unit

an encryption event generating unit generating an encryption event for encrypting and transmitting the first identification code when the first transaction is registered in the blockchain network;

When the encryption event occurs, concatenated data is generated by extracting n diagonal elements corresponding to the main diagonal of the first identification matrix and concatenating the n diagonal elements, and then concatenating the concatenation data. an encryption key generation unit for generating an encryption key by applying data as an input to a preset encryption key generation function; and

When the encryption key is generated, the first identification code is encrypted with the encryption key, and then the encrypted first identification code and the encryption key generation function are transmitted to the first electronic terminal, thereby matching the first real product. Issuance unit that completes and processes the issuance of identification codes for items to be

including,

The first electronic terminal is

When the encrypted first identification code and the encryption key generation function are received from the metaverse service operation server, the main diagonal of the first identification matrix extracted through the two-dimensional code printed on the surface of the first real product After extracting the n diagonal components corresponding to and generating the concatenated data by concatenating the n diagonal components, the concatenated data is applied as an input to the encryption key generation function received from the metaverse service operation server To generate the encryption key, and when the encryption key is generated, the metaverse service operation server, characterized in that for decrypting the encrypted first identification code with the encryption key.
According to claim 1,

After the first identification code is transmitted to the first electronic terminal, as an access request command for the metaverse service is received from the first electronic terminal, the first electronic terminal according to the account of the first user In a state in which the metaverse environment is provided, when the first identification code is received from the first electronic terminal and an activation command for the first item is received, personal information of the first user is transmitted to the first electronic terminal. Personal information requesting unit requesting to transmit;

When the first personal information is received from the first electronic terminal as the personal information of the first user, the first transaction including the first personal information and the first identification code is performed from the blockchain network. a transaction search unit for searching;

When the first transaction is retrieved, the first data set is configured using the first personal information, the first identification code, and the first date information included in the first transaction, and then the first data set a hash value generating unit generating the first hash value by applying as an input to the hash function;

When the first hash value is generated, a decryption value is generated by decrypting the first electronic signature value with a public key forming a key pair with the private key, and then it is checked whether the first hash value matches the decryption value. a verification unit performing verification on the first electronic signature value by doing so; and

When the verification of the first electronic signature value is completed, it is confirmed that the first identification code is a code normally issued to the first user, and with reference to the identification code storage unit, the first identification code corresponding to the first identification code is determined. After identifying the first item, in the metaverse environment according to the account of the first user, an item activation processing unit for activating the first item so that the first item becomes usable.

A metaverse service operation server further comprising a.
According to claim 1,

When the first personal information and the first identification code are received from the first electronic terminal, a sales information registration request command requesting to register sales information for the first identification code in a sales information database is received, a sales price requesting unit requesting transmission of sales price information for the sale of the first identification code to the first electronic terminal;

When first sales amount information is received as the sales amount information of the first identification code from the first electronic terminal, first sales information composed of the first personal information, the first identification code, and the first sales amount information Sales information generation unit for generating;

a sales registration processing unit processing sales registration for the first identification code by storing the first sales information in the sales information database when the first sales information is generated;

After sales registration for the first identification code is processed, when a purchase request command requesting purchase of the first identification code registered for sale by the first user is received from a second electronic terminal possessed by a second user. , a payment method information requesting unit requesting transmission of payment method information for payment to the second electronic terminal;

When first payment method information is received from the second electronic terminal, after checking the first sales amount information constituting the first sales information with reference to the sales information database, based on the first payment method information , A payment processing completion unit that completes payment processing for the amount according to the first sales amount information;

When payment processing for the amount according to the first sales amount information is completed, the first identification code constituting the first sales information is extracted with reference to the sales information database, and the second electronic terminal; After requesting to transmit the personal information of the second user, when the second personal information is received from the second electronic terminal to the personal information of the second user, after generating second date information for the current point in time, a second dataset generating unit generating a second dataset composed of second personal information, the first identification code, and the second date information;

When the second dataset is generated, a second hash value is generated by applying the second dataset as an input to the hash function, and then a second electronic signature value is generated by encrypting the second hash value with the private key. a second electronic signature value generating unit; and

When the second electronic signature value is generated, a second transaction including the second personal information, the first identification code, the second date information, and the second electronic signature value is generated, and the second transaction is performed as the After registration in the blockchain network, a sales processing completion unit that completes the sales processing for the first identification code by transmitting the first identification code to the second electronic terminal.

A metaverse service operation server further comprising a.
A blockchain-based metaverse service operation server for operating a metaverse service that can provide items matching the real product on the metaverse environment through linkage with the two-dimensional code printed on the real product. In the operating method,

maintaining an embedding vector storage unit storing preset n different natural numbers having a size of 9 or less and a preset n-dimensional embedding vector corresponding to each of the n natural numbers;

A plurality of pre-specified real goods - For each of the plurality of real goods, a serial number of different n digits for identifying each real product (here, the number located at each digit constituting the serial number is the n designated as one of natural numbers) is pre-assigned, and on the surface of each of the plurality of real products, an n-dimensional embedding vector corresponding to each digit constituting the serial number of each real product is sequentially Data for an identification matrix of size n x n generated by matrix multiplication of an n x n array matrix arranged as a row vector and a preset verification matrix of n x n size (here, the verification matrix is a matrix having an inverse matrix) is inserted. pre-printed two-dimensional code - maintaining a serial number storage unit in which serial numbers corresponding to each are stored;

Maintaining an identification code storage unit in which a pre-issued identification code corresponding to each of a plurality of items designated in advance as usable in the metaverse environment is stored;

maintaining a table storage unit storing an item matching table in which information on an item predesignated to match each of the plurality of real products among the plurality of items is recorded;

As a first user who purchases a first real product, which is any one of the plurality of real products, scans and recognizes a two-dimensional code printed on the surface of the first real product through a first electronic terminal, When the first identification matrix extracted through the two-dimensional code printed on the surface of the first real product is received from the first electronic terminal, based on the first identification matrix and the verification matrix, By checking the n-dimensional embedding vector corresponding to each digit constituting the serial number, the serial number of the first real product is confirmed, and based on the serial number of the first real product, the first user The first user scans among the plurality of real products by identifying whether the real product for which the two-dimensional code is scanned through the first electronic terminal corresponds to which real product among the plurality of real products. identifying the first physical product as a physical product;

checking information on a first item matched with the first real product by referring to the item matching table when the first real product is identified as a real product scanned by the first user;

When the information on the first item is confirmed, a first identification code corresponding to the first item is extracted from the identification code storage unit, and a request is made to transmit personal information of the first user to the first electronic terminal. Then, when first personal information is received as personal information of the first user from the first electronic terminal, first date information for a current point in time is generated, and then the first personal information, the first identification code and generating a first dataset composed of the first date information;

When the first dataset is generated, a first hash value is generated by applying the first dataset as an input to a preset hash function, and then the first hash value is encrypted with a preset private key to obtain a first electronic signature value. generating; and

When the first electronic signature value is generated, a first transaction including the first personal information, the first identification code, the first date information, and the first electronic signature value is generated, and the first transaction is pre-transmitted. Completing the issuance of an identification code for an item matched to the first real product by transmitting the first identification code to the first electronic terminal after registration in the set blockchain network

Operation method of the metaverse service operation server including.
According to claim 6,

The step of identifying

As the first user scans and recognizes the two-dimensional code printed on the surface of the first physical product through the first electronic terminal, printing is performed on the surface of the first physical product from the first electronic terminal. restoring a first configuration matrix by multiplying the first identification matrix by an inverse matrix of the verification matrix when the first identification matrix extracted through the extracted 2D code is received;

When the first array matrix is restored, natural numbers corresponding to the same embedding vector as each of the n row vectors constituting the first array matrix are sequentially extracted from the embedding vector storage unit to obtain an n-digit serial number. By configuring to, confirming the serial number of the first physical product; and

When the serial number of the first real product is confirmed, for each of the plurality of real products, the serial number corresponding to each real product stored in the serial number storage unit and the serial number of the first real product Comparing with each other, identifying a real product having a serial number matching the serial number of the first real product among the plurality of real products as the first real product, which is a real product scanned by the first user.

Operation method of the metaverse service operation server including.
According to claim 6,

The completion processing step is

generating an encryption event for encrypting and transmitting the first identification code when the first transaction is registered and processed in the blockchain network;

When the encryption event occurs, concatenated data is generated by extracting n diagonal elements corresponding to the main diagonal of the first identification matrix and concatenating the n diagonal elements, and then concatenating the concatenation data. generating an encryption key by applying the data as an input to a preset encryption key generation function; and

When the encryption key is generated, the first identification code is encrypted with the encryption key, and then the encrypted first identification code and the encryption key generation function are transmitted to the first electronic terminal, thereby matching the first real product. The step of completing and processing the issuance of an identification code for an item to be

including,

The first electronic terminal is

When the encrypted first identification code and the encryption key generation function are received from the metaverse service operation server, the main diagonal of the first identification matrix extracted through the two-dimensional code printed on the surface of the first real product After extracting the n diagonal components corresponding to and generating the concatenated data by concatenating the n diagonal components, the concatenated data is applied as an input to the encryption key generation function received from the metaverse service operation server To generate the encryption key, and when the encryption key is generated, the operation method of the metaverse service operation server, characterized in that for decrypting the encrypted first identification code with the encryption key.
According to claim 6,

After the first identification code is transmitted to the first electronic terminal, as an access request command for the metaverse service is received from the first electronic terminal, the first electronic terminal according to the account of the first user In a state in which the metaverse environment is provided, when the first identification code is received from the first electronic terminal and an activation command for the first item is received, personal information of the first user is transmitted to the first electronic terminal. Requesting to transmit;

When the first personal information is received from the first electronic terminal as the personal information of the first user, the first transaction including the first personal information and the first identification code is performed from the blockchain network. searching;

When the first transaction is retrieved, the first data set is configured using the first personal information, the first identification code, and the first date information included in the first transaction, and then the first data set Generating the first hash value by applying as an input to the hash function;

When the first hash value is generated, a decryption value is generated by decrypting the first electronic signature value with a public key forming a key pair with the private key, and then it is checked whether the first hash value matches the decryption value. By doing so, performing verification on the first electronic signature value; and

When the verification of the first electronic signature value is completed, it is confirmed that the first identification code is a code normally issued to the first user, and with reference to the identification code storage unit, the first identification code corresponding to the first identification code is determined. After identifying the first item, activating the first item to become usable in the metaverse environment according to the account of the first user.

Method of operation of the metaverse service operation server further comprising a.
According to claim 6,

When the first personal information and the first identification code are received from the first electronic terminal, a sales information registration request command requesting to register sales information for the first identification code in a sales information database is received, requesting, to the first electronic terminal, transmission of sales price information for sale of the first identification code;

When first sales amount information is received as the sales amount information of the first identification code from the first electronic terminal, first sales information composed of the first personal information, the first identification code, and the first sales amount information generating;

processing sales registration for the first identification code by storing the first sales information in the sales information database when the first sales information is generated;

After sales registration for the first identification code is processed, when a purchase request command requesting purchase of the first identification code registered for sale by the first user is received from a second electronic terminal possessed by a second user. , requesting transmission of payment method information for payment to the second electronic terminal;

When first payment method information is received from the second electronic terminal, after checking the first sales amount information constituting the first sales information with reference to the sales information database, based on the first payment method information , Completing payment processing for the amount according to the first sales amount information;

When payment processing for the amount according to the first sales amount information is completed, the first identification code constituting the first sales information is extracted with reference to the sales information database, and the second electronic terminal; After requesting to transmit the personal information of the second user, when the second personal information is received from the second electronic terminal to the personal information of the second user, after generating second date information for the current point in time, generating a second dataset composed of second personal information, the first identification code, and the second date information;

When the second dataset is generated, a second hash value is generated by applying the second dataset as an input to the hash function, and then a second electronic signature value is generated by encrypting the second hash value with the private key. doing; and

When the second electronic signature value is generated, a second transaction including the second personal information, the first identification code, the second date information, and the second electronic signature value is generated, and the second transaction is performed as the Completing the sales process for the first identification code by transmitting the first identification code to the second electronic terminal after registration in the blockchain network

Method of operation of the metaverse service operation server further comprising a.
A computer-readable recording medium recording a computer program for executing the method of any one of claims 6 to 10 through a combination with a computer.
A computer program stored in a storage medium for executing the method of any one of claims 6 to 10 through a combination with a computer.