KR102315520B1 - Blockchain-based gold bar management service server to support authenticity and transaction of gold bar printed with copyrighted image and operating method thereof - Google Patents

Abstract

The present invention suggests a blockchain-based gold bar management service server for supporting genuine authentication and transaction of a gold bar printed with a copyrighted image and an operating method thereof, which can support the preservation of the value of a gold bar, and support easy transaction of a gold bar between individuals.

Description

A blockchain-based gold bar management service server to support the activation and transaction of a gold bar with a copyrighted image printed on it and its operation method AND OPERATING METHOD THEREOF}

The present invention relates to a blockchain-based gold bar management service server for supporting genuine authentication and transaction of a gold bar on which a copyrighted image is printed, and an operating method thereof.

Amid unstable economic conditions, more and more people are showing interest in spot assets, which are expected to increase in value steadily. In particular, as the expected return on real estate investment is decreasing due to loan regulations and increased holding tax, people are showing interest in trading in precious metals such as gold and diamonds, artworks, and commemorative coins in addition to real estate.

Among these spot assets, gold is regarded as a safe asset around the world, and many people are interested in purchasing gold as the economy becomes difficult.

In this way, as interest in gold is amplified, interest in gold bars is also increasing recently. A gold bar means a bar-shaped gold bar, and because it has a luxurious image, it is often used as a gift.

In addition, since the sales of goods printed with copyrighted images are increasing, it is possible to introduce a method of generating high sales revenue by printing and selling copyrighted images on gold bars.

In particular, by printing and selling copyrighted images limited to some gold bars, the value of the gold bars can be increased, and the satisfaction of customers who purchased the gold bars can be increased.

However, in the case of limitedly printing and selling copyrighted images for some gold bars, in order to maintain the value of the gold bars, it is necessary to have a system that supports verification that the gold bars are genuine gold bars that have been officially issued. .

In addition, since a customer who owns a gold bar with a copyrighted image printed on it may want to sell the gold bar to other customers, it is necessary to have a system for a trading platform that supports the trading of gold bars between individuals. In particular, since gold bars printed with copyrighted images have the characteristics of limited products with high value, it is appropriate to use the auction method when a customer who owns the gold bar wants to sell the gold bar to another customer. It is necessary to study the system technology that enables gold bars to be traded between individuals in an auction method.

Meanwhile, in recent years, block chain technology that can ensure the integrity of data by composing predetermined data into chained blocks and storing them distributedly in nodes rather than in a central server has been widely used.

Here, in the blockchain technology, when predetermined data called a transaction is generated, any one node device among a plurality of node devices participating in the blockchain network is transferred By creating a new block containing the transaction based on the block, linking the block to the block chain data, and distributing the block to other node devices through the block chain network, predetermined data is It refers to a technology that allows distributed storage in node devices of

Therefore, even in the system for processing the activation of gold bars printed with copyrighted images, data related to product activation is stored and managed based on the block chain, thereby improving the reliability and safety of product activation of gold bars. Research is needed.

The present invention provides a blockchain-based gold bar management service server and an operating method for supporting genuine authentication and transaction of gold bars printed with copyrighted images, thereby supporting the preservation of the value of the gold bars, and providing easy gold bars between individuals. We want to support you to make a transaction.

A plurality of gold bars on which a copyrighted image is printed according to an embodiment of the present invention - n (n is a natural number of 2 or more) digit main identification number for identifying each gold bar in each of the plurality of gold bars and n-digit auxiliary identification numbers are allocated, and a two-dimensional code in which information on the main identification number of each gold bar is inserted is printed on each of the plurality of gold bars - each auxiliary identification number and the plurality of gold bars Preset Euclidean Norm for Each Activation - The Euclidean Norm is an n-dimensional vector and n-digit number consisting of n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars. It means the Euclidean norm of the vector created by calculating the Hadamard product between n-dimensional vectors composed of n numbers constituting the auxiliary identification number of A blockchain-based gold bar management service server that performs gold bar genuine authentication processing in conjunction with a plurality of node devices storing block chain data - the plurality of node devices forming a block chain network From the terminal of the first user who purchased the first gold bar, which is one of the gold bars, the first auxiliary identification number assigned to the first gold bar is pre-stored in the terminal of the first user. When a genuine product authentication request is received, an auxiliary identification number requesting unit for requesting transmission of an auxiliary identification number for the first gold bar to the terminal of the first user, and auxiliary identification for the first gold bar from the terminal of the first user When the first auxiliary identification number pre-stored in the terminal of the first user is received as a number, the first gold bar is inserted into the two-dimensional code printed on the first gold bar by the terminal of the first user. A main identification number requesting unit for requesting transmission of the main identification number, the first user's terminal printed on the first gold bar As the two-dimensional code is recognized, when the first main identification number that is the main identification number of the first gold bar is extracted, the main identification number receiving unit receives the first main identification number from the terminal of the first user, the first When the first main identification number is received from the user's terminal, Euclidean is recorded in correspondence with the first auxiliary identification number on the block chain data to the first node device which is any one of the plurality of node devices. When the first Euclidean norm is received from the Euclidean norm requesting unit requesting transmission of the norm, and the first node device, an n-dimensional first vector is generated with n numbers constituting the first main identification number as components, and , an arithmetic unit for generating a second n-dimensional vector comprising n numbers constituting the first auxiliary identification number as a component, and then calculating a Hadamard product between the first vector and the second vector to generate a first operation vector , after calculating the Euclidean norm of the first operation vector, check whether the Euclidean norm of the first operation vector is the same as the first Euclidean norm, and confirm that the Euclidean norm of the first operation vector is the same as the first Euclidean norm If the first gold bar is genuine, a genuine product confirmation unit that confirms that the first gold bar is genuine, and when it is confirmed that the first gold bar is genuine, a genuine product authentication message indicating that the first gold bar is genuine is transmitted to the terminal of the first user It includes a message transmission unit.

In addition, a plurality of gold bars on which a copyrighted image is printed according to an embodiment of the present invention - In each of the plurality of gold bars, n (n is a natural number of 2 or more) digit main identification number and n for identifying each gold bar A digit auxiliary identification number is assigned, and a two-dimensional code in which information on the main identification number of each gold bar is inserted is printed on each of the plurality of gold bars - each auxiliary identification number and each of the plurality of gold bars Preset Euclidean Norm for Activation - The Euclidean Norm constitutes an n-dimensional vector consisting of n numbers constituting an n-digit primary identification number assigned to each of the plurality of gold bars and an n-digit secondary identification number It means the Euclidean norm of the vector generated by calculating the Hadamard product between n-dimensional vectors composed of n numbers. The operation method of the blockchain-based gold bar management service server that performs gold bar genuine authentication processing in conjunction with the plurality of node devices forming a block chain network includes the first When an activation request for the first gold bar is received from the terminal of the first user who purchased the gold bar, the first auxiliary identification number assigned to the first gold bar is pre-stored in the terminal of the first user, requesting transmission of the auxiliary identification number for the first gold bar to the terminal of the first user, the auxiliary identification number for the first gold bar from the terminal of the first user is pre-stored in the terminal of the first user When the first auxiliary identification number is received, requesting transmission of the main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar to the terminal of the first user, the first 1 As the two-dimensional code printed on the first gold bar is recognized by the user's terminal, the first main identification number that is the main identification number of the first gold bar is extracted. Then, receiving the first main identification number from the terminal of the first user, when the first main identification number is received from the terminal of the first user, any one of the plurality of node apparatuses requesting transmission of the Euclidean norm recorded in correspondence with the first auxiliary identification number on the block chain data to the first node device; when the first Euclidean norm is received from the first node device, the first main identification After generating an n-dimensional first vector containing n numbers constituting the number as components, and generating an n-dimensional second vector containing n numbers constituting the first auxiliary identification number as components, the first generating a first operation vector by calculating a Hadamard product between a vector and the second vector, after calculating the Euclidean norm of the first operation vector, whether the Euclidean norm of the first operation vector is the same as the first Euclidean norm If it is confirmed that the Euclidean norm of the first operation vector is the same as the first Euclidean norm by checking, confirming that the first gold bar is genuine, and when it is confirmed that the first gold bar is genuine, the first user and transmitting a genuine product authentication message indicating that the first gold bar is genuine.

The present invention provides a blockchain-based gold bar management service server and an operating method for supporting genuine authentication and transaction of gold bars printed with copyrighted images, thereby supporting the preservation of the value of the gold bars, and providing easy gold bars between individuals. We can support you to make the transaction possible.

1 is a diagram showing the structure of a blockchain-based gold bar management service server according to an embodiment of the present invention.
2 is a diagram for explaining the operation of a blockchain-based gold bar management service server according to an embodiment of the present invention.
3 is a flowchart illustrating an operation method of a blockchain-based gold bar management service server according to an embodiment of the present invention.

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

In this document, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, in various embodiments of the present invention, each of the components, functional blocks or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by each component are electronic. A circuit, an integrated circuit, an ASIC (Application Specific Integrated Circuit), etc. may be implemented with various well-known devices or mechanical elements, and may be implemented separately or two or more may be integrated into one.

On the other hand, the blocks in the accompanying block diagram or steps in the flowchart are computer program instructions that are loaded in a processor or memory of equipment capable of data processing, such as a general-purpose computer, a special-purpose computer, a portable notebook computer, and a network computer, and perform specified functions. can be interpreted as meaning Since these computer program instructions may be stored in a memory provided in a computer device or in a memory readable by a computer, the functions described in the blocks of the block diagrams or the steps of the flowcharts are produced as articles of manufacture containing instruction means for performing the same. could be In addition, each block or each step may represent a module, segment, or portion of code comprising one or more executable instructions for executing the specified logical function(s). It should also be noted that, in some alternative embodiments, it is also possible for the functions recited in blocks or steps to be executed out of the prescribed order. For example, two blocks or steps shown one after another may be performed substantially simultaneously or in the reverse order, and in some cases, some blocks or steps may be omitted.

1 is a diagram showing the structure of a blockchain-based gold bar management service server according to an embodiment of the present invention.

The blockchain-based gold bar management service server 110 according to the present invention is a preset for authenticating each of the plurality of gold bars and the auxiliary identification number of each of the plurality of gold bars on which the copyrighted image is printed. The Euclidean Norm is a server that performs gold bar activation processing by interworking with a plurality of node devices that store block chain data, in which blocks recorded in correspondence with each other are linked in a chain, and an auxiliary identification number request unit ( 111), a main identification number requesting unit 112, a main identification number receiving unit 113, a Euclidean gambling requesting unit 114, a calculating unit 115, a genuine product checking unit 116, and a message transmitting unit 117. .

At this time, n (n is a natural number of 2 or more) digit main identification number and n digit auxiliary identification number for identifying each gold bar are allocated to each of the plurality of gold bars, and each of the plurality of gold bars is assigned a A two-dimensional code with information about the main identification number is printed.

In this regard, as illustrated in FIG. 2 , a copyrighted image 211 may be printed on the surface 210 of each of the plurality of gold bars. In addition, a two-dimensional code 212 in which information on a main identification number assigned to each gold bar is printed may be printed on the surface 210 of each of the plurality of gold bars. Here, the two-dimensional code 212 may be a barcode or a quick response code (QR).

In addition, the Euclidean norm is an n-dimensional vector composed of n numbers constituting an n-digit main identification number allocated to each of the plurality of gold bars, and n numbers constituting an n-digit auxiliary identification number. It means the Euclidean norm of a vector generated by calculating the Hadamard product between n-dimensional vectors.

Here, the Euclidean norm is an L2 norm for indicating the size of a vector or matrix, and may be calculated according to Equation 1 below.

는 유클리드 노름을 의미하고, x_i는 벡터나 행렬에 포함되어 있는 i번째 성분을 의미한다.In Equation 1 above

denotes the Euclidean norm, and x _i denotes the i-th component included in a vector or matrix.

And, Hadamard product means the operation of multiplying components at the same position in two vectors or matrices. can be

In addition, in the present invention, it is assumed that a plurality of node devices 101 , 102 , 103 , 104 constitute a block chain network in order to distribute and store information related to activation of gold bars in the memory of each node device. . Here, the plurality of node devices 101 , 102 , 103 , and 104 mean a microprocessor-based computing device having a network function, and the memory of each node device is based on a transaction containing information related to activation of gold bars. The block chain data in which the blocks created with the chain are connected are stored. The block chain data is the information related to the authenticity of gold bars, and blocks including a transaction including 'the auxiliary identification number of each of the plurality of gold bars and the Euclid norm of each of the plurality of gold bars' are connected by a chain. It is data that exists, and because it is stored in the memory of each of the plurality of node devices, the plurality of node devices can form a blockchain network.

For example, when 'n = 6', the block chain data stored in the memory of each of the plurality of node devices (101, 102, 103, 104) has a 6-digit auxiliary identification number as shown in Table 1 below. and Euclidean norm may be recorded in correspondence with each other.

Auxiliary identification number of each of the plurality of gold bars Euclidean gambling 123456 N1 234567 N2 345678 N3 ... ...

In this situation, the auxiliary identification number requesting unit 111 of the gold bar management service server 110 sends the first gold bar to the first gold bar from the terminal 130 of the first user who purchased the first gold bar, which is one of the plurality of gold bars. When a genuine product authentication request is received, transmission of an auxiliary identification number for the first gold bar is requested to the first user's terminal 130 .

Here, the first auxiliary identification number allocated to the first gold bar may be pre-stored in the terminal 130 of the first user. In general, when a user purchases any one of the gold bars from among the plurality of gold bars, the user may be given an auxiliary identification number assigned to the corresponding gold bar for use in authenticating the corresponding gold bar, and the auxiliary identification number may be stored in a user terminal owned by the user.

For this reason, the auxiliary identification number requesting unit 111 receives the activation request for the first gold bar from the terminal 130 of the first user who purchased the first gold bar from among the plurality of gold bars. The terminal 130 may request transmission of an auxiliary identification number for the first gold bar.

At this time, when a request for transmission of an auxiliary identification number for the first gold bar is received from the gold bar management service server 110 of the first user's terminal 130 , the first user's terminal 130 is pre-stored in the first user's terminal 130 . 1 The auxiliary identification number for the gold bar may be transmitted to the gold bar management service server 110 .

The main identification number request unit 112 receives the first auxiliary identification number stored in advance in the terminal 130 of the first user as the auxiliary identification number for the first gold bar from the terminal 130 of the first user. , requests the first user's terminal 130 to transmit the main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar.

At this time, when the first user receives a request for transmission of the primary identification number for the first gold bar from the gold bar management service server 110 to the first user's terminal 130 , the first user's terminal 130 has A two-dimensional code printed on the first gold bar may be recognized through a two-dimensional code recognizer, and a main identification number for the first gold bar may be extracted from the two-dimensional code. If the first primary identification number is extracted as the primary identification number for the first gold bar, the first user's terminal 130 may transmit the first primary identification number to the gold bar management service server 110 .

In this way, as the two-dimensional code printed on the first gold bar is recognized by the first user's terminal 130, when the first main identification number that is the main identification number of the first gold bar is extracted, the main identification number receiving unit 113 ) receives the first main identification number from the terminal 130 of the first user.

When the first main identification number is received from the terminal 130 of the first user, the Euclidean gambling request unit 114 is a first node device of any one of the plurality of node devices 101 , 102 , 103 , 104 . The node device requests transmission of the Euclidean norm recorded corresponding to the first auxiliary identification number on the block chain data.

At this time, when a request for transmission of the Euclidean norm recorded in correspondence with the first auxiliary identification number is received from the gold bar management service server 110 to the first node device, the first node device stores the memory of the first node device. After extracting the first Euclidean norm corresponding to the first auxiliary identification number from the block chain data stored in the block chain data, the first Euclidean norm may be transmitted to the gold bar management service server 110 .

In this way, when the first Euclidean norm is received from the first node device to the gold bar management service server 110 , the operation unit 115 performs an n-dimensional A first operation is performed by generating one vector, generating an n-dimensional second vector containing n numbers constituting the first auxiliary identification number as components, and then calculating the Hadamard product between the first vector and the second vector create a vector

After calculating the Euclidean norm of the first operation vector, the authenticity checking unit 116 checks whether the Euclidean norm of the first operation vector is the same as the first Euclidean norm, so that the Euclidean norm of the first operation vector is the second 1 When it is confirmed that it is the same as the Euclid norm, it is confirmed that the first gold bar is genuine.

In this regard, the operation of the Euclidean gambling request unit 114 , the operation unit 115 , and the genuine product check unit 116 will be described as an example.

First, it is assumed that 'n=6', the first main identification number for the first gold bar received from the terminal 130 of the first user is '348329', and the first auxiliary identification number for the first gold bar Assume that is '123456'. Also, for convenience of description, it is assumed that the first node device is a node device denoted by reference numeral 101 .

At this time, the Euclidean gambling request unit 114 is the first node device 101, which is any one of the plurality of node devices 101, 102, 103, 104, and the first auxiliary identification number on the block chain data. It is possible to request transmission of the recorded Euclidean norm corresponding to '123456'.

At this time, when a request for transmission of the Euclidean norm recorded in correspondence with the first auxiliary identification number '123456' is received from the gold bar management service server 110 to the first node device 101, the first node device 101 extracts 'N1', which is the first Euclidean norm corresponding to '123456', which is the first auxiliary identification number, from the block chain data as shown in Table 1 stored in the memory of the first node device 101, and then 1 'N1', which is the Euclidean norm, may be transmitted to the gold bar management service server 110 .

In this way, when 'N1', which is the first Euclidean norm, is received from the first node device 101 to the gold bar management service server 110, the operation unit 115 configures the first main identification number '348329'. '[3 4 8 3 2 9]' can be generated as a 6-dimensional first vector containing '3, 4, 8, 3, 2, 9', which are numbers, and the first auxiliary identification number After generating '[1 2 3 4 5 6]' as a 6-dimensional second vector containing '1, 2, 3, 4, 5, 6', which are six numbers constituting '123456', the first A first operation vector '[3 8 24 12 10 54]' may be generated by calculating the Hadamard product between the first vector and the second vector.

Then, the authenticity check unit 116 calculates the Euclidean norm of '[3 8 24 12 10 54]', which is the first operation vector, as '61.71' according to Equation 1, and then the first operation vector Check whether '61.71', which is the Euclidean norm of '[3 8 24 12 10 54]', is the same as 'N1', which is the first Euclidean norm. Since it can be seen that the first main identification number '348329' included in the 2D code is the same as the normally issued main identification number, it is possible to confirm the first gold bar as a genuine product.

In this way, when it is confirmed that the first gold bar is genuine, the message transmitting unit 117 transmits a genuine product authentication message indicating that the first gold bar is genuine to the first user's terminal 130 .

At this time, according to an embodiment of the present invention, when it is confirmed that the Euclidean norm of the first operation vector is not the same as the first Euclidean norm, the authenticity checking unit 116 determines that the first gold bar is not genuine. can be confirmed as

At this time, when it is confirmed that the first gold bar is not genuine, the message transmitting unit 117 may transmit a genuine non-authenticated message indicating that the first gold bar is not genuine to the terminal 130 of the first user.

According to an embodiment of the present invention, the gold bar management service server 110 may further include a configuration for supporting users to trade gold bars with each other. In this regard, the gold bar management service server 110 according to the present invention includes a sales information database 118 , a sales information request unit 119 , a sales register 120 , an auction period designation unit 121 , and an auction processing unit 122 . and a payment processing unit 123 .

The sales information database 118 stores sales information on at least one gold bar for which sales registration has been completed among the plurality of gold bars. Here, the sale information includes gold content information and weight information for each of the at least one gold bar, information about an image printed on each gold bar, and information about a creator of the image.

In this regard, information may be stored in the sales information database 118 as shown in Table 2 below.

gold bar Gold content information weight information information about the image Information about the creator of the image gold bar 1 24k 1 kg image 1 Kim Yeo-reum gold bar 2 18k 500g image 2 Park Autumn gold bar 3 14k 100g image 3 this winter ... ... ... ... ...

When a sale registration request for the first gold bar is received from the first user's terminal 130 , the sales information request unit 119 transmits sales information on the first gold bar to the first user's terminal 130 . request.

In this case, when the first user receives a request for transmission of sales information on the first gold bar from the gold bar management service server 110 to the first user's terminal 130, the gold of the first gold bar held by the first user is received. The gold bar management service server through the first user's terminal 130 by inputting the first sales information consisting of content information, weight information, information about the image, and information about the creator of the image into the terminal 130 of the first user. The first sales information may be transmitted to 110 .

When the first sales information is received from the first user's terminal 130 as sales information on the first gold bar, the sales register 120 additionally stores the first sales information in the sales information database 118 .

When the first sale information is additionally stored in the sale information database 118 , the auction period designation unit 121 sets a period from the time when the first sale information is stored to a preset elapsed time for the auction for the first gold bar. specified by period.

For example, if it is assumed that the time at which the first sale information is stored is '00:00 on July 1, 2020,' and the elapsed time is '7 days', the auction period designation unit 121 is 'July 8, 2020. Up to 0 o'clock on the day may be designated as the auction period for the first gold bar.

When the auction processing unit 122 receives information on the desired purchase price for the first gold bar along with a bid request for the purchase of the first gold bar from terminals of a plurality of users during the auction period for the first gold bar, the plurality of A successful bid message indicating that the first gold bar has been successfully bid is transmitted to the second user's terminal 140 , which has transmitted information on the maximum desired purchase price among the user's terminals.

After that, the payment processing unit 123 requests the second user's terminal 140 to transmit payment method information for proceeding with the payment processing of the successful bid for the first gold bar, and sends a ' When first payment method information such as 'credit card information' is received, payment processing of the successful bid for the first gold bar is performed based on the first payment method information.

At this time, according to an embodiment of the present invention, the gold bar management service server 110 includes a request unit 124 , a new auxiliary identification number generator 125 , an operation processing unit 126 , a block chain registration request unit 127 and A new auxiliary identification number transmission unit 128 may be further included.

When the payment processing of the winning bid for the first gold bar is completed, the requesting unit 124 uses the first user terminal 130 to identify the first gold bar inserted in the two-dimensional code printed on the first gold bar. Request the number to be sent.

The new auxiliary identification number generator 125 recognizes the two-dimensional code printed on the first gold bar in the terminal 130 of the first user and extracts the first main identification number, the terminal 130 of the first user ), when the first main identification number is received, an n-digit new auxiliary identification number for the first gold bar is randomly generated.

For example, as in the example described above, when 'n=6', the new auxiliary identification number generator 125 receives the first main identification number from the terminal 130 of the first user, and the first gold bar It is possible to randomly generate a new 6-digit auxiliary identification number for

When the new auxiliary identification number is randomly generated, the operation processing unit 126 generates an n-dimensional third vector including n numbers constituting the first main identification number as a component, and configures the new auxiliary identification number. After generating an n-dimensional fourth vector having n numbers as components, a Hadamard product between the third vector and the fourth vector is calculated to generate a second operation vector.

In relation to this, as in the example described above, the first main identification number for the first gold bar is '348329', and the new auxiliary identification number generating unit 125 indicates that the new auxiliary identification number is generated as '950515'. If it is assumed, the arithmetic processing unit 126 is a 6-dimensional third vector including '3, 4, 8, 3, 2, 9', which are six numbers constituting '348329', which is the first main identification number, as a component. '[3 4 8 3 2 9]' can be created with After generating '[9 5 0 5 1 5]' as a 6-dimensional fourth vector, the Hadamard product between the third vector and the fourth vector is calculated, and the second operation is '[27 20 0 15 2 45]'. You can create vectors.

In this way, when the second operation vector is generated, the blockchain registration request unit 127 calculates the Euclidean norm of the second operation vector, and a transaction including the new auxiliary identification number and the Euclidean norm of the second operation vector After generating the transaction, while transmitting the transaction to the second node device, which is any one of the plurality of node devices 101, 102, 103, 104, a registration request of the transaction to the blockchain network is transmitted. .

In relation to this, if it is assumed that the second node device is a node device indicated by reference numeral 102, the block chain registration request unit 127 receives '[27 20 0 15 2 45]' is generated, the Euclidean norm of '[27 20 0 15 2 45]', which is the second operation vector, is calculated as '58.16' according to Equation 1, and then the new auxiliary identification number '950515' ' and '58.16', which is the Euclidean norm of '[27 20 0 15 2 45]', which is the second operation vector, generates a transaction including While transmitting the transaction to the second node device 102, which is a node device of

At this time, when the transaction is received from the gold bar management service server 110 , the second node device 102 blocks the block including the transaction based on the block chain data stored in the memory of the second node device 102 . After generating the block and chaining the block to the block chain data, the second node device 102 among the plurality of node devices 101, 102, 103, and 104 is connected to the block through the block chain network. It can propagate to the remaining node devices 101 , 103 , and 104 .

At this time, when the block is received through the block chain network, the remaining node devices (101, 103, 104) store the block chain data stored in the memory of each of the remaining node devices (101, 103, 104). The block can be connected to a chain and stored.

Through this, the transaction including the new auxiliary identification number and the Euclidean norm of the second operation vector is chained to the block chain data stored in the memory of each of the plurality of node devices (101, 102, 103, 104) It can be connected to a plurality of node devices (101, 102, 103, 104) and distributed and stored in each.

That is, when the ownership of the first gold bar is transferred from the first user to the second user through an auction, the gold bar management service server 110 according to the present invention newly generates an auxiliary identification number assigned to the first gold bar. Then, the newly created auxiliary identification number and the corresponding new Euclidean norm are newly recorded in the block chain data stored in the memory of each of the plurality of node devices (101, 102, 103, 104), thereby authenticating the gold bar. related information can be updated.

In this way, when the information related to authenticating the gold bar is updated, the new auxiliary identification number transmitter 128 transmits the new auxiliary identification number to the terminal 140 of the second user and simultaneously transmits the new auxiliary identification number. A storage command instructing to be stored in the terminal 140 of the second user as the auxiliary identification number for the first gold bar is transmitted to the terminal 140 of the second user.

Through this, a new auxiliary identification number for the first gold bar is stored in the second user's terminal 140 , and if the second user receives the first gold bar, the second user's terminal 140 is stored in the second user's terminal 140 . When the gold bar management service server 110 according to the present invention is connected to the gold bar management service server 110 according to the present invention and the genuine product authentication procedure for the first gold bar is performed, the gold bar management service server 110 according to the present invention is connected to the terminal 140 of the second user. After receiving the first main identification number included in the two-dimensional code printed on the first gold bar from Whether the Euclidean norm of the operation value is the same as the new Euclidean norm corresponding to the new auxiliary identification number newly recorded in the block chain data stored in the memory of each of the plurality of node devices (101, 102, 103, 104) By comparing, genuine authentication processing for the first gold bar may be performed.

According to an embodiment of the present invention, the gold bar management service server 110 may further include a sending guide message transmission unit 129 .

When the payment processing of the successful bid for the first gold bar is completed, the sending guide message transmitting unit 129 requests the second user's terminal 140 to transmit address information for receiving the first gold bar, and When the first address information is received from the user's terminal 140, while transmitting the first address information to the first user's terminal 130, it is instructed to send the first gold bar to the address according to the first address information. Sends a sending notification message.

Through this, the first user can send the first gold bar to the address according to the first address information received in the terminal 130 of the first user, and the second user directly receives the first gold bar, thereby finally Thus, the transaction for the first gold bar may be completed.

3 is a plurality of gold bars on which a copyrighted image is printed according to an embodiment of the present invention (in each of the plurality of gold bars, n (n is a natural number greater than or equal to 2) digit main identification number for identifying each gold bar; An n-digit auxiliary identification number is allocated, and a two-dimensional code in which information on the main identification number of each gold bar is inserted is printed on each of the plurality of gold bars) each auxiliary identification number and each of the plurality of gold bars Pre-set Euclidean norm for activation of A plurality of nodes that store block chain data in which blocks in which the Hadamard product of the n-dimensional vector composed of the n numbers constituting the n-dimensional vector is calculated and recorded corresponding to each other). It is a flowchart illustrating an operation method of a blockchain-based gold bar management service server that performs a gold bar genuine authentication process in conjunction with devices (the plurality of node devices form a block chain network).

In step S310, the terminal of the first user who purchased the first gold bar, which is one of the plurality of gold bars (the first user's terminal stores the first auxiliary identification number assigned to the first gold bar in advance, When a genuine product authentication request for the first gold bar is received from ), a request is made to transmit an auxiliary identification number for the first gold bar to the terminal of the first user.

In step S320, when the first auxiliary identification number pre-stored in the first user's terminal is received as the auxiliary identification number for the first gold bar from the first user's terminal, it is transmitted to the first user's terminal. It requests transmission of the main identification number for the first gold bar, which is inserted in the two-dimensional code printed on the first gold bar.

In step S330, as the two-dimensional code printed on the first gold bar is recognized by the terminal of the first user, when the first main identification number that is the main identification number of the first gold bar is extracted, the first user's Receives the first primary identification number from the terminal.

In step S340, when the first main identification number is received from the terminal of the first user, the first auxiliary identification on the block chain data is a first node device that is any one of the plurality of node devices. Requests the transmission of the Euclidean norm recorded corresponding to the number.

In step S350, when the first Euclidean norm is received from the first node device, an n-dimensional first vector is generated with n numbers constituting the first main identification number as components, and the first auxiliary identification After generating an n-dimensional second vector having n numbers constituting the number as a component, a Hadamard product between the first vector and the second vector is calculated to generate a first operation vector.

In step S360, after calculating the Euclidean norm of the first operation vector, it is checked whether the Euclidean norm of the first operation vector is the same as the first Euclidean norm, so that the Euclidean norm of the first operation vector is the first Euclidean norm If it is confirmed that it is the same as , it is confirmed that the first gold bar is genuine.

In step S370, if it is confirmed that the first gold bar is genuine, a genuine product authentication message indicating that the first gold bar is genuine is transmitted to the terminal of the first user.

At this time, according to an embodiment of the present invention, when it is confirmed that the Euclidean norm of the first operation vector is not the same as the first Euclidean norm in step S360, it can be confirmed that the first gold bar is not genuine. have.

At this time, if it is confirmed that the first gold bar is not genuine in step S370, a genuine non-authenticated message indicating that the first gold bar is not genuine may be transmitted to the terminal of the first user.

In addition, according to an embodiment of the present invention, the method of operating the gold bar management service server includes sales information on at least one gold bar for which sales registration has been completed among the plurality of gold bars (the sales information includes each of the at least one gold bar). maintaining a sales information database in which gold content information, weight information, information about the image printed on each gold bar, and information about the creator of the image) are stored, from the terminal of the first user requesting transmission of sales information on the first gold bar to the first user's terminal when a sale registration request for the first gold bar is received; additionally storing the first sales information in the sales information database when the first sales information is received; designating a period up to a preset elapsed time as an auction period for the first gold bar; When information on the desired purchase price for one gold bar is received, transmitting a successful bid message indicating that the first gold bar has been successfully bid to a terminal of a second user that has transmitted information on the maximum desired purchase price among terminals of the plurality of users and requesting the second user's terminal to transmit payment method information for processing the successful bid for the first gold bar, and receiving the first payment method information from the second user terminal, the first payment The method may further include performing payment processing for the successful bid for the first gold bar based on the means information.

At this time, according to an embodiment of the present invention, in the method of operating the gold bar management service server, when the payment processing of the winning bid for the first gold bar is completed, the two-dimensional code printed on the first gold bar by the first user terminal requesting transmission of a main identification number for the first gold bar inserted in , when the first main identification number is received from the terminal of the first user, randomly generating an n-digit new auxiliary identification number for the first gold bar; if the new auxiliary identification number is randomly generated, the After generating an n-dimensional third vector containing n numbers constituting the first main identification number as components, and generating an n-dimensional fourth vector containing n numbers constituting the new auxiliary identification number as components generating a second operation vector by calculating a Hadamard product between the third vector and the fourth vector, calculating the Euclidean norm of the second operation vector, and the Euclidean norm of the new auxiliary identification number and the second operation vector Sending a registration request of the transaction to the blockchain network while transmitting the transaction to a second node device that is any one of the plurality of node devices after generating the included transaction; and At the same time as transmitting the auxiliary identification number to the second user's terminal, the second user sends a storage command instructing to store the new auxiliary identification number as the auxiliary identification number for the first gold bar in the second user's terminal It may further include the step of transmitting to the terminal of.

In addition, according to an embodiment of the present invention, the method of operating the gold bar management service server provides an address for receiving the first gold bar to the terminal of the second user when the payment processing of the successful bid for the first gold bar is completed. Upon requesting the transmission of information and receiving the first address information from the terminal of the second user, while transmitting the first address information to the terminal of the first user, the first gold bar is set according to the first address information. The method may further include transmitting a sending guide message instructing to send to the address.

The operation method of the gold bar management service server according to an embodiment of the present invention has been described above with reference to FIG. 3 . Here, since the method of operating the gold bar management service server according to an embodiment of the present invention may correspond to the configuration of the operation of the gold bar management service server 110 described with reference to FIGS. 1 and 2 , a more detailed description thereof will be provided. is to be omitted.

The method of operating the gold bar management service server according to an embodiment of the present invention may be implemented as a computer program stored in a storage medium for execution through combination with a computer.

In addition, the operating method of the gold bar management service server according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and carry out program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

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

110: Blockchain-based gold bar management service server
111: auxiliary identification number request unit 112: primary identification number request unit
113: main identification number receiving unit 114: Euclidean gambling request unit
115: calculation unit 116: authenticity check unit
117: message sending unit 118: sales information database
119: sales information request unit 120: sales register
121: auction period designation unit 122: auction processing unit
123: payment processing unit 124: request unit
125: new auxiliary identification number generation unit 126: operation processing unit
127: block chain registration request unit 128: new auxiliary identification number transmission unit
129: sending guide message transmitter 130: first user's terminal
140: second user's terminal
101, 102, 103, 104: a plurality of node devices

Claims (12)

A plurality of gold bars on which a copyrighted image is printed - Each of the plurality of gold bars has n (n is a natural number greater than or equal to 2) digit main identification number and n digit auxiliary identification number for identifying each gold bar. is assigned, and a two-dimensional code in which information about the main identification number of each gold bar is inserted is printed on each of the plurality of gold bars - Each auxiliary identification number and preset for authenticating each of the plurality of gold bars Euclidean Norm - The Euclidean norm is an n-dimensional vector consisting of n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars and n constituting an n-digit auxiliary identification number It means the Euclidean norm of the vector generated by the operation of the Hadamard product between n-dimensional vectors composed of n numbers. In the blockchain-based gold bar management service server that performs gold bar activation processing in conjunction with node devices of
Sales information on at least one gold bar for which sales registration has been completed among the plurality of gold bars - The sales information includes gold content information, weight information, and information on an image printed on each gold bar for each of the at least one gold bar. contains information about the creators of - a database of sales information in which they are stored;
From the terminal of the first user who purchased the first gold bar, which is one of the plurality of gold bars, the first auxiliary identification number assigned to the first gold bar is pre-stored in the terminal of the first user. an auxiliary identification number requesting unit for requesting transmission of an auxiliary identification number for the first gold bar to the terminal of the first user when a genuine product authentication request for the first gold bar is received;
When the first auxiliary identification number pre-stored in the first user's terminal is received from the first user's terminal as the auxiliary identification number for the first gold bar, the first user's terminal is transferred to the first gold bar. a main identification number requesting unit for requesting transmission of a main identification number for the first gold bar inserted in the printed two-dimensional code;
As the two-dimensional code printed on the first gold bar is recognized by the terminal of the first user, when the first main identification number that is the main identification number of the first gold bar is extracted, the first main identification number is extracted from the terminal of the first user. a main identification number receiving unit for receiving the main identification number;
When the first main identification number is received from the first user's terminal, the first node device, which is any one of the plurality of node devices, is recorded in correspondence with the first auxiliary identification number on the block chain data. a Euclidean norm requesting unit for requesting transmission of the existing Euclidean norm;
When a first Euclidean norm is received from the first node device, an n-dimensional first vector is generated with n numbers constituting the first main identification number as components, and n constituting the first auxiliary identification number an arithmetic unit generating an n-dimensional second vector having n numbers as components, and then calculating a Hadamard product between the first vector and the second vector to generate a first operation vector;
After calculating the Euclidean norm of the first operation vector, it is confirmed that the Euclidean norm of the first operation vector is the same as the first Euclidean norm, and the Euclidean norm of the first operation vector is confirmed to be the same as the first Euclidean norm In this case, the first gold bar is genuine checking unit for confirming that it is genuine;
a message transmission unit for transmitting, when it is confirmed that the first gold bar is genuine, a genuine product authentication message indicating that the first gold bar is genuine to the terminal of the first user;
a sales information request unit for requesting transmission of sales information on the first gold bar to the first user's terminal when a sale registration request for the first gold bar is received from the first user's terminal;
a sales register configured to additionally store the first sales information in the sales information database when first sales information is received as sales information on the first gold bar from the terminal of the first user;
an auction period designation unit configured to designate a period from a time when the first sale information is stored to a preset elapsed time as an auction period for the first gold bar when the first sale information is additionally stored in the sale information database;
During the auction period for the first gold bar, when information on the desired purchase price for the first gold bar is received from terminals of a plurality of users along with a bid request for the purchase of the first gold bar, the highest value among the terminals of the plurality of users is received. an auction processing unit transmitting a successful bid message indicating that the first gold bar has been successfully bid to a terminal of a second user that has transmitted information on the desired purchase price; and
When the second user's terminal requests transmission of payment method information for processing the payment of the winning bid for the first gold bar, and receives the first payment method information from the second user's terminal, the first payment A payment processing unit that performs payment processing of the winning bid for the first gold bar based on the means information
A blockchain-based gold bar management service server that includes According to claim 1,
The authenticity check unit
When it is confirmed that the Euclidean norm of the first operation vector is not the same as the first Euclidean norm, it is confirmed that the first gold bar is not genuine;
The message sending unit
When it is confirmed that the first gold bar is not genuine, the blockchain-based gold bar management service server transmits a genuine non-authenticated message indicating that the first gold bar is not genuine to the terminal of the first user. delete According to claim 1,
When the payment processing of the winning bid for the first gold bar is completed, a request for transmitting the main identification number for the first gold bar inserted in the 2D code printed on the first gold bar to the terminal of the first user wealth;
As the two-dimensional code printed on the first gold bar is recognized by the terminal of the first user and the first main identification number is extracted, when the first main identification number is received from the terminal of the first user, the second a new auxiliary identification number generator for randomly generating an n-digit new auxiliary identification number for one gold bar;
When the new auxiliary identification number is randomly generated, an n-dimensional third vector is generated using n numbers constituting the first main identification number as components, and n numbers constituting the new auxiliary identification number are generated as components an arithmetic processing unit for generating a second arithmetic vector by generating an n-dimensional fourth vector, and then calculating a Hadamard product between the third vector and the fourth vector;
After calculating the Euclidean norm of the second operation vector and generating a transaction including the new auxiliary identification number and the Euclidean norm of the second operation vector, a second node that is any one of the plurality of node apparatuses a block chain registration request unit for transmitting a registration request of the transaction to the block chain network while transmitting the transaction to the device; and
At the same time as transmitting the new auxiliary identification number to the terminal of the second user, a storage command instructing to store the new auxiliary identification number as an auxiliary identification number for the first gold bar in the terminal of the second user is issued to the second user. 2 New auxiliary identification number transmitter to transmit to the user's terminal
A blockchain-based gold bar management service server that further includes a. According to claim 1,
When the payment processing of the winning bid for the first gold bar is completed, a request is made to transmit address information for receiving the first gold bar to the terminal of the second user, and the first address information is received from the terminal of the second user a sending guide message transmitting unit for transmitting a sending guide message instructing to send the first gold bar to an address according to the first address information while transmitting the first address information to the terminal of the first user
A blockchain-based gold bar management service server that further includes a. A plurality of gold bars on which a copyrighted image is printed - Each of the plurality of gold bars has n (n is a natural number greater than or equal to 2) digit main identification number and n digit auxiliary identification number for identifying each gold bar. is assigned, and a two-dimensional code in which information about the main identification number of each gold bar is inserted is printed on each of the plurality of gold bars - Each auxiliary identification number and preset for authenticating each of the plurality of gold bars Euclidean Norm - The Euclidean norm is an n-dimensional vector consisting of n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars and n constituting an n-digit auxiliary identification number It means the Euclidean norm of the vector generated by the operation of the Hadamard product between n-dimensional vectors composed of n numbers. In the method of operating a blockchain-based gold bar management service server that performs gold bar activation processing in conjunction with node devices of
Sales information on at least one gold bar for which sales registration has been completed among the plurality of gold bars - The sales information includes gold content information, weight information, and information on an image printed on each gold bar for each of the at least one gold bar. contains information about the creator of - maintaining a sales information database in which is stored;
The auxiliary identification number requesting unit is a terminal of a first user who has purchased a first gold bar, which is one of the plurality of gold bars. The first user's terminal stores a first auxiliary identification number assigned to the first gold bar in advance. requesting transmission of an auxiliary identification number for the first gold bar to the first user's terminal when a genuine product authentication request for the first gold bar is received from -;
When the first auxiliary identification number pre-stored in the terminal of the first user is received from the terminal of the first user as the auxiliary identification number for the first gold bar, the main identification number requesting unit, the terminal of the first user requesting transmission of a main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar;
As the two-dimensional code printed on the first gold bar is recognized by the terminal of the first user, when the first main identification number, which is the main identification number of the first gold bar, is extracted, the main identification number receiving unit, the first user receiving the first primary identification number from a terminal of
When the first main identification number is received from the terminal of the first user, the Euclidean gambling request unit performs the first auxiliary identification on the block chain data to a first node device that is any one of the plurality of node devices. requesting transmission of the Euclidean norm recorded corresponding to the number;
When the first Euclidean norm is received from the first node device, the operation unit generates an n-dimensional first vector including n numbers constituting the first main identification number as a component, and generates the first auxiliary identification number. generating a first operation vector by generating an n-dimensional second vector containing n numbers constituting the component, and then calculating a Hadamard product between the first vector and the second vector;
After the authenticity check unit calculates the Euclidean norm of the first operation vector, the Euclidean norm of the first operation vector checks whether the Euclidean norm of the first operation vector is the same as the first Euclidean norm, so that the Euclidean norm of the first operation vector is the first Euclidean norm when it is confirmed that the first gold bar is genuine;
transmitting, by a message transmission unit, a genuine product authentication message indicating that the first gold bar is genuine, to the terminal of the first user when it is confirmed that the first gold bar is genuine;
requesting, by a sales information requesting unit, to transmit sales information on the first gold bar to the first user's terminal when a sale registration request for the first gold bar is received from the first user's terminal;
additionally storing, by a sales register, the first sales information in the sales information database, when first sales information is received as sales information on the first gold bar from the terminal of the first user;
when the first sale information is additionally stored in the sale information database, designating, by an auction period designator, a period from the time when the first sale information is stored to a preset elapsed time as an auction period for the first gold bar; ;
When the auction processing unit receives information on the desired purchase price for the first gold bar along with a bid request for the purchase of the first gold bar from terminals of a plurality of users during the auction period for the first gold bar, the transmitting a successful bid message indicating that the first gold bar has been successfully bid to a terminal of a second user who has transmitted information on a maximum desired purchase price among terminals; and
When the payment processing unit requests the second user's terminal to transmit payment method information for processing the successful bid for the first gold bar, and receives the first payment method information from the second user's terminal, performing payment processing of the winning bid for the first gold bar based on the first payment method information
A method of operating a blockchain-based gold bar management service server, including 7. The method of claim 6,
The checking step is
When it is confirmed that the Euclidean norm of the first operation vector is not the same as the first Euclidean norm, the authenticity check unit confirms that the first gold bar is not a genuine product,
The step of sending the activation message is
When it is confirmed that the first gold bar is not genuine, the message transmitting unit transmits, to the first user's terminal, a genuine non-authenticated message indicating that the first gold bar is not genuine, a blockchain-based gold bar management service server how it works. delete 7. The method of claim 6,
When the payment processing of the winning bid for the first gold bar is completed, the requesting unit transmits the main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar to the terminal of the first user. requesting;
As the two-dimensional code printed on the first gold bar is recognized by the terminal of the first user and the first main identification number is extracted, when the first main identification number is received from the terminal of the first user, a new auxiliary randomly generating, by an identification number generator, an n-digit new auxiliary identification number for the first gold bar;
When the new auxiliary identification number is randomly generated, the arithmetic processing unit generates an n-dimensional third vector including n numbers constituting the first main identification number as a component, and n constituting the new auxiliary identification number generating a second operation vector by generating an n-dimensional fourth vector having n numbers as components and then calculating a Hadamard product between the third vector and the fourth vector;
After the block chain registration request unit calculates the Euclidean norm of the second operation vector, and generates a transaction including the new auxiliary identification number and the Euclidean norm of the second operation vector, any one of the plurality of node devices sending a registration request of the transaction to the blockchain network while transmitting the transaction to a second node device that is a node device; and
The new auxiliary identification number transmission unit transmits the new auxiliary identification number to the terminal of the second user, and at the same time stores the new auxiliary identification number as an auxiliary identification number for the first gold bar in the terminal of the second user. transmitting a storage command instructing the second user to the terminal
The operation method of the blockchain-based gold bar management service server further comprising a. 7. The method of claim 6,
When the payment processing of the winning bid for the first gold bar is completed, the sending guide message transmission unit requests transmission of address information for receiving the first gold bar to the terminal of the second user, and receives the information from the terminal of the second user. When the first address information is received, while transmitting the first address information to the terminal of the first user, transmitting a sending guide message instructing to send the first gold bar to the address according to the first address information
The operation method of the blockchain-based gold bar management service server further comprising a. A computer-readable recording medium recording a computer program for executing the method of any one of claims 6, 7, 9 or 10 through combination with a computer. A computer program stored in a storage medium for executing the method of any one of claims 6, 7, 9 or 10 in combination with a computer.

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