WO2022035013A1 - Digital content provision service server supporting provision of digital restricted content through association with gold bars, and operation method thereof - Google Patents

Abstract

A digital content provision service server and an operation method thereof according to the present invention pertain to technology that can promote the consumption of authentic gold bars by: certifying the authenticity of a gold bar on the basis of a main identification number and an auxiliary identification number allocated to the gold bars; and, once the authenticity of the gold bar is certified, providing prescribed digital restricted content to a terminal of a user who owns the gold bar.

Description

A digital content providing service server that supports the provision of digital limited content through interlocking with Gold Bar and its operation method

The present invention relates to a digital content providing service server that supports the provision of digital limited content through interworking with a gold bar, and a method for operating the same.

Amid unstable economic conditions, more and more people are showing interest in spot assets, which are expected to see steady appreciation in value. 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 it has a luxurious image, so it is often used as a gift.

In addition, in recent years, various limited edition contents such as portraits and signatures of celebrities such as celebrities and athletes are increasing. By providing this, it will be possible to introduce a method to induce consumers to purchase a lot of gold bars.

If such a measure is introduced, it will be possible to not only generate high sales profits, but also increase the satisfaction of customers who have purchased a specific gold bar.

However, in the case of providing digital limited content to customers who have purchased a specific gold bar, it is necessary to have a system that supports verification that the gold bar is a genuine gold bar that has been officially issued. In this regard, by allocating a predetermined main identification number and a secondary identification number for genuine product authentication to each of the issued gold bars, and enabling genuine product authentication for each of the gold bars based on this, more efficient genuine product authentication for gold bars The introduction of system technology to support this can be considered.

In addition, since a customer holding a gold bar may wish to transfer the gold bar to another customer, it is necessary to have system technology for the transfer platform that supports the transfer of gold bars between individuals.

The present invention performs genuine authentication for gold bars based on the main identification number and secondary identification number assigned to the gold bar, and when the genuine authentication for the gold bar is completed, a predetermined digital limitation is applied to the terminal of the user holding the gold bar. An object of the present invention is to induce consumption of genuine gold bars by presenting a digital content providing service server that provides content and an operating method thereof.

The digital content providing service server supporting the provision of digital limited content through interworking with the gold bar according to an embodiment of the present invention includes a plurality of gold bars - each of the plurality of gold bars for identifying each gold bar. A main identification number of n (n is a natural number of 2 or more) digits and a secondary identification number of k (k is a natural number of 2 or more) for authenticating each gold bar are allocated, and each of the plurality of gold bars is assigned the main identification number of each gold bar. A two-dimensional code in which information about an identification number is inserted is printed - Each auxiliary identification number and a preset Euclidean Norm of each of the plurality of gold bars - The Euclidean norm is assigned to each of the plurality of gold bars The Kronecker product is generated by calculating a column vector having n numbers constituting the n-digit main identification number as components and a row vector having k numbers constituting the k-digit auxiliary identification number as components. Means the Euclidean norm of a matrix having a size of nxk - a complex information storage unit that is stored in correspondence with each other, a content storage unit that stores a plurality of preset digitally limited contents, and a history of completing the provision of digitally limited contents A history database in which a plurality of auxiliary identification numbers with When a request for providing digital limited content for the first gold bar is received from - in which the first auxiliary identification number is pre-stored, the auxiliary requesting for transmission of the auxiliary identification number for the first gold bar to the terminal of the first user is received When the first auxiliary identification number pre-stored in the terminal of the first user is received as the auxiliary identification number for the first gold bar from the identification number request unit, the terminal of the first user, the first auxiliary identification number is stored in the history database History check unit to check whether the auxiliary identification number is stored, the history data If it is confirmed that the first auxiliary identification number is not stored in the base, 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 is performed. When the requesting main identification number request unit, the first user's terminal recognizes the two-dimensional code printed on the first gold bar and extracts the first main identification number, which is the main identification number of the first gold bar, the first When the first main identification number is received from the user's terminal, the Euclidean norm extraction unit for extracting the first Euclidean norm corresponding to the first auxiliary identification number from the complex information storage unit, when the first Euclidean norm is extracted, After generating a first column vector having n numbers constituting the first main identification number as components, and generating a first row vector having k numbers constituting the first auxiliary identification number as components, the first an operation unit generating a first operation matrix having a size of nxk by calculating a Kronecker product between a column vector and the first row vector; after calculating the Euclidean norm of the first operation matrix, the Euclidean norm of the first operation matrix is the first 1 When it is confirmed that the Euclidean norm of the first operation matrix is the same as the first Euclidean norm by checking whether it is the same as the first Euclidean norm, a genuine product checking unit that confirms that the first gold bar is genuine, the first gold bar is genuine If it is confirmed that , content transmission for randomly extracting a preset number of first digital limited contents from among the plurality of digital limited contents from the contents storage unit and then transmitting the first digital limited contents to the terminal of the first user and a history information storage unit for additionally storing the first auxiliary identification number in the history database when the copy and the first digital limited contents are transmitted to the terminal of the first user.

In addition, the operating method of the digital content providing service server supporting the provision of digital limited content through interworking with the gold bars according to an embodiment of the present invention includes a plurality of gold bars - identifying each gold bar in each of the plurality of gold bars. A primary identification number of n (n is a natural number of 2 or more) for each gold bar and a secondary identification number of k (k is a natural number of 2 or more) for authenticating each gold bar are allocated, and each of the plurality of gold bars has a A two-dimensional code in which information about the main identification number is inserted is printed - Each auxiliary identification number and a preset Euclidean norm of each of the plurality of gold bars - The Euclidean norm is an n-digit number assigned to each of the plurality of gold bars Euclidean of a matrix having a size of nxk generated by calculating the Kronecker product between a column vector containing n numbers constituting the main identification number of Means gambling - maintaining a complex information storage unit stored in correspondence with each other, maintaining a content storage unit in which a plurality of preset digital limited contents are stored, having a history of completion of provision of digital limited contents maintaining a history database in which a plurality of auxiliary identification numbers are stored; a terminal of a first user who purchases a first gold bar, which is one of the plurality of gold bars - assigned to the first gold bar in the terminal of the first user When a request for provision of digital limited content for the first gold bar is received from - the first auxiliary identification number is pre-stored, it requests transmission of the auxiliary identification number for the first gold bar to the terminal of the first user 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 first auxiliary identification is stored in the history database Checking whether the number is stored, the first auxiliary identification number in the history database If it is confirmed that it is not stored, requesting the first user's terminal to transmit the main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar, the first user's As the two-dimensional code printed on the first gold bar is recognized by the terminal and the first main identification number that is the main identification number of the first gold bar is extracted, when the first main identification number is received from the terminal of the first user , extracting a first Euclidean norm corresponding to the first auxiliary identification number from the complex information storage unit, when the first Euclidean norm is extracted, having n numbers constituting the first main identification number as components A size of nxk is generated by generating a first column vector, generating a first row vector having k numbers constituting the first auxiliary identification number as a component, and calculating a Kronecker product between the first column vector and the first row vector generating a first arithmetic matrix having When it is confirmed that this is the same as the first Euclidean gambling, the step of confirming that the first gold bar is genuine; After randomly extracting a set number of first digital limited contents, transmitting the first digital limited contents to the terminal of the first user, and when the first digital limited contents are transmitted to the terminal of the first user, the history and further storing the first auxiliary identification number in a database.

The digital content providing service server and its operating method according to the present invention perform genuine product authentication for a gold bar based on a main identification number and a secondary identification number assigned to the gold bar, and when the genuine product authentication for the gold bar is completed, the corresponding gold bar By providing predetermined digital limited content to the user's terminal in possession, consumption of genuine gold bars can be stimulated.

1 is a diagram showing the structure of a digital content providing service server according to an embodiment of the present invention.

2 is a diagram for explaining the operation of a digital content providing service server according to an embodiment of the present invention.

3 is a flowchart illustrating a method of operating a digital content providing 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 as 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 computer-readable memory, the functions described in the blocks of the block diagram or the steps of the flowchart are produced as articles of manufacture containing instruction means for performing the same. it might 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 digital content providing service server according to an embodiment of the present invention.

The digital content providing service server 110 according to the present invention is a server that supports the provision of digital limited content through interworking with the gold bar, and includes a complex information storage unit 111 , a content storage unit 112 , and a history database 113 . , auxiliary identification number requesting unit 114, history checking unit 115, main identification number requesting unit 116, Euclidean gambling extracting unit 117, calculating unit 118, authenticity checking unit 119, content transmission unit 120 and a history information storage unit 121 .

First, n (n is a natural number greater than or equal to 2) digit main identification number for identifying each gold bar and genuine authentication of each gold bar for each of the plurality of gold bars that are the target of providing digital limited content in the present invention A secondary identification number of k (k is a natural number greater than or equal to 2) is allocated for each of the gold bars, and a two-dimensional code in which information about the primary identification number of each gold bar is inserted is printed on each of the plurality of gold bars.

In this regard, as shown in FIG. 2 , a two-dimensional code 211 in which information about 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. there is. Here, the two-dimensional code 211 may be a QR code (Quick Response Code) or Veri Code.

In this situation, the complex information storage unit 111 of the digital content providing service server 110 includes an auxiliary identification number of each of the plurality of gold bars and a preset Euclidean norm corresponding to each of the plurality of gold bars. They are stored in correspondence with each other.

Here, the Euclidean norm is a column vector having n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars as components, and k numbers constituting a k-digit auxiliary identification number as components. It means the Euclidean norm of a matrix having a size of nxk generated by calculating the Kronecker product between row vectors.

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

In Equation 1 above

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

In addition, the Kronecker product refers to a matrix that specifically expresses the tensor product of two matrices. Assuming that a matrix M of mxn as in Equation 2 below and a matrix N of pxq as in Equation 3 below are given, the matrix The Kronecker product between M and the matrix N can be expressed as Equation 4 below.

For example, when 'k=5', the 5-digit auxiliary identification number and the Euclidean norm may be stored in correspondence with each other in the complex information storage unit 111 as shown in Table 1 below.

Auxiliary identification number of each of the plurality of gold bars	Euclidean gambling
12321	N1
23432	N2
34543	N3
...	...

The content storage unit 112 stores a plurality of preset digital limited contents.

Here, digital limited content refers to digital content such as videos, images, and icons related to celebrities, such as celebrities, politicians, and sports players, or digital content such as digital items that can be used in computer games or mobile games. It means limited content to be provided only to those who have purchased it.

In relation to this, information may be stored in the content storage unit 112 as shown in Table 2 below.

Multiple digitally limited contents

Digital Limited Content 1

Digital Limited Content 2

Digital Limited Content 3

Digital Limited Content 4

Digital Limited Content 5

Digital Limited Content 6

Digital Limited Content 7

Digital Limited Content 8

Digital Limited Content 9

Digital Limited Content 10

...

The history database 113 stores a plurality of auxiliary identification numbers having a history of completing the provision of digital limited content.

For example, information may be stored in the history database 113 as shown in Table 3 below.

A plurality of auxiliary identification numbers having a history of completing the provision of digital limited content

23432

34543

78987

...

The auxiliary identification number requesting unit 114 receives a request to provide digital limited content for the first gold bar from the terminal 130 of the first user who has purchased the first gold bar, which is one of the plurality of gold bars. The transmission of the auxiliary identification number for the first gold bar is requested to the terminal 130 of the first user.

Here, the first auxiliary identification number assigned to the first gold bar may be pre-stored in the terminal 130 of the first user. Usually, 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 114 receives a request to provide digital limited content for the first gold bar from the terminal 130 of the first user who has purchased the first gold bar among the plurality of gold bars. Transmission of the auxiliary identification number for the first gold bar may be requested to the terminal 130 of the first user.

At this time, when the first user's terminal 130 requests transmission of the auxiliary identification number for the first gold bar from the digital content providing service server 110 , 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 digital content providing service server 110 .

The history check unit 115 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, the history It is checked whether the first auxiliary identification number is stored in the database 113 .

If it is confirmed by the history check unit 115 that the first auxiliary identification number is not stored in the history database 113 , the primary identification number request unit 116 sends the first user's terminal 130 to the 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 this case, when the first user requests transmission of the main identification number for the first gold bar from the digital content providing service server 110 to the first user's terminal 130 , the first user's terminal 130 is equipped with 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 digital content providing 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 and the first main identification number that is the main identification number of the first gold bar is extracted, the first user's terminal ( 130), when the first main identification number is received from the digital content providing service server 110, the Euclidean norm extraction unit 117 is a first Euclidean corresponding to the first auxiliary identification number from the complex information storage unit 111. extract the norm

In this way, when the first Euclidean norm is extracted by the Euclidean norm extraction unit 117, the operation unit 118 generates a first column vector having n numbers constituting the first main identification number as components, and the After generating a first row vector having k numbers constituting the first auxiliary identification number as a component, a Kronecker product between the first column vector and the first row vector is calculated to generate a first operation matrix having a size of nxk. .

After calculating the Euclidean norm of the first operation matrix, the authenticity confirmation unit 119 checks whether the Euclidean norm of the first operation matrix is the same as the first Euclidean norm, and the Euclidean norm of the first operation matrix is the first 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 way, when it is confirmed that the first gold bar is genuine by the authenticity checking unit 119 , the content transmitting unit 120 sends a preset number of first among the plurality of digital limited contents from the content storage unit 112 . After randomly extracting the digital limited contents, the first digital limited contents are transmitted to the terminal 130 of the first user.

In this way, when the first digital limited contents are transmitted to the terminal 130 of the first user by the contents transmission unit 120 , the history information storage unit 121 stores the first auxiliary identification number in the history database 113 . Save more.

In this regard, the operations of the Euclidean norm extracting unit 117 , the calculating unit 118 , the genuine product checking unit 119 , the content transmission unit 120 , and the history information storage unit 121 will be described in detail with an example.

First, it is assumed that 'n=6' and 'k=5', the first main identification number for the first gold bar received from the terminal 130 of the first user is '210012', and the Assume that the first auxiliary identification number is '12321'.

In this case, the Euclidean norm extraction unit 117 may extract the first Euclidean norm 'N1' corresponding to the first auxiliary identification number '12321' from the complex information storage unit 111 as shown in Table 1 above.

In this way, when 'N1', which is the first Euclidean norm, is extracted by the Euclidean norm extracting unit 117, the calculating unit 118 has the first six numbers constituting the first main identification number '210012' as components. 1 as a column vector '

' as a first row vector having five numbers constituting '12321', which is the first auxiliary identification number, as components.

' can be created.

Thereafter, the operation unit 118 calculates the Kronecker product between the first column vector and the first row vector according to Equations 2 to 4, thereby generating a first operation matrix having a size of 6×5 '

' can be created.

Then, the authenticity check unit 119 calculates the Euclidean norm of the first arithmetic matrix as '13.78' according to Equation 1, and then '13.78', which is the Euclidean norm of the first arithmetic matrix, is calculated as the first When it is confirmed that both Euclidean norms are identical to each other by checking whether they are the same as the Euclidean norm 'N1', the first main identification number '210012' included in the two-dimensional code printed on the first gold bar was normally issued. Since it can be seen that the main identification number is correct, the first gold bar can be identified as a genuine product.

In this way, when it is confirmed that the first gold bar is genuine by the authenticity check unit 119, the content transmission unit 120 receives the 'digital limited contents' from the content storage unit 112 as shown in Table 2 above. After randomly extracting a preset number of first digitally limited contents from among limited content 1, digital limited content 2, digital limited content 3, ...', the first digital limited contents are transmitted to the terminal 130 of the first user can

If it is assumed that the number is '5', the content transmission unit 120 receives the plurality of digital limited contents 'digital limited content 1 and digital limited content 2 from the contents storage unit 112 as shown in Table 2 above. , digital limited content 3, ...' among '5' first digital limited contents ', and then transmit the first digital limited contents 'digital limited content 1, digital limited content 3, digital limited content 5, digital limited content 7, and digital limited content 9' to the first user's terminal 130 after random extraction. can

In this way, the first digital limited contents 'digital limited content 1, digital limited content 3, digital limited content 5, digital limited content 7, and digital limited content 9' are transmitted to the first user's terminal ( 130), the history information storage unit 121 may additionally store the first auxiliary identification number '12321' in the history database 113 as shown in Table 3 as shown in Table 4 below.

A plurality of auxiliary identification numbers having a history of completing the provision of digital limited content

23432

34543

78987

...

12321

At this time, according to an embodiment of the present invention, when it is confirmed that the Euclidean norm of the first operation matrix is not the same as the first Euclidean norm, the authenticity checking unit 119 determines that the first gold bar is not genuine. can be confirmed as

At this time, if it is confirmed that the first gold bar is not genuine, the content transmission unit 120 generates a non-provided message indicating that digital limited content cannot be provided according to the non-genuine product of the first gold bar. It can be transmitted to the user's terminal 130 .

According to an embodiment of the present invention, the digital content providing service server 110 may further include a configuration for supporting the transfer of gold bars between users. In this regard, the digital content providing service server 110 according to the present invention includes a terminal information requesting unit 122 , a requesting unit 123 , a generating unit 124 , an operation matrix generating unit 125 , and an update processing unit 126 . and a transmission unit 127 may be further included.

When the transfer processing command for transferring the first gold bar to the second user is received from the terminal 130 of the first user, the terminal information request unit 122 sends the terminal 130 of the first user to the terminal of the second user. Requests terminal information for (140).

At this time, when terminal information on the terminal 140 of the second user is requested from the digital content providing service server 110 , the terminal 130 of the first user digitally transmits the terminal information about the terminal 140 of the second user. The content may be transmitted to the content providing service server 110 .

When terminal information on the terminal 140 of the second user is received from the terminal 130 of the first user, the request unit 123 establishes a communication connection with the terminal 140 of the second user based on the terminal information. When an attempt is made and a communication connection is established with the terminal 140 of the second user, the main identification number for the first gold bar is inserted into the two-dimensional code printed on the first gold bar by the terminal 140 of the second user. request the transmission of

At this time, when the second user requests transmission of the main identification number for the first gold bar from the digital content providing service server 110 to the terminal 140 of the second user, the 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 second user's terminal 140 may transmit the first primary identification number to the digital content providing service server 110 . there is.

In this way, as the two-dimensional code printed on the first gold bar is recognized by the second user's terminal 140 and the first main identification number is extracted, the digital content providing service server ( 110), when the first main identification number is received, the generator 124 randomly generates a new k-digit auxiliary identification number for the first gold bar.

When the new auxiliary identification number is randomly generated, the operation matrix generator 125 generates a second column vector having n numbers constituting the first main identification number as a component, and configures the new auxiliary identification number. After generating a second row vector having k numbers as components, a Kronecker product between the second column vector and the second row vector is calculated to generate a second operation matrix having a size of nxk.

The update processing unit 126 calculates the Euclidean norm of the second operation matrix, and then changes the first Euclidean norm stored in the complex information storage unit 111 to the Euclidean norm of the second operation matrix, and stores the complex information The first auxiliary identification number stored in the unit 111 is changed to the new auxiliary identification number.

The transmitter 127 transmits the new auxiliary identification number to the second user's terminal 140, and at the same time transmits the new auxiliary identification number as an auxiliary identification number for the first gold bar to the second user's terminal 140 It transmits a storage command instructing to save to the terminal 140 of the second user.

Hereinafter, operations of the generating unit 124 , the arithmetic matrix generating unit 125 , the update processing unit 126 , and the transmitting unit 127 will be described in detail by way of example.

For example, as in the above example, it is assumed that 'n=6' and 'k=5', and that the first main identification number for the first gold bar received from the terminal 140 of the second user is '210012' It is assumed that the first auxiliary identification number is '12321' and the first Euclidean norm is 'N1'.

In this case, the generator 124 may randomly generate a new 5-digit auxiliary identification number for the first gold bar.

If it is assumed that the new auxiliary identification number is generated as '20002' by the generation unit 124, the operation matrix generation unit 125 generates six numbers constituting the first main identification number '210012'. As a second column vector having a component '

' as a second row vector having five numbers constituting '20002', which is the new auxiliary identification number, as a component.

' can be created.

Thereafter, the update processing unit 126 calculates the Kronecker product between the second column vector and the second row vector according to Equations 2 to 4, so that the second operation matrix ' having a size of 6 x 5'

' can be created.

Then, the update processing unit 126 calculates the Euclidean norm of the second operation matrix as '8.94' according to Equation 1, and then the first stored in the complex information storage unit 111 as shown in Table 1 1 Euclidean norm 'N1' is changed to '8.94', which is the Euclidean norm of the second operation matrix, as shown in Table 5 below, and the first auxiliary stored in the complex information storage unit 111 as shown in Table 1 The identification number '12321' may be changed to the new auxiliary identification number '20002' as shown in Table 5 below.

Auxiliary identification number of each of the plurality of gold bars	Euclidean gambling
20002	8.94
23432	N2
34543	N3
...	...

Thereafter, the transmitter 127 transmits the new auxiliary identification number '20002' to the terminal 140 of the second user, and at the same time transmits the new auxiliary identification number '20002' to the first gold bar. A storage command instructing to be stored in the terminal 140 of the second user as the identification number may be transmitted to the terminal 140 of the second user.

Through this, the new auxiliary identification number is stored in the terminal 140 of the second user.

In this case, according to an embodiment of the present invention, the digital content providing service server 110 may further include a deletion command transmission unit 128 .

When the new auxiliary identification number is transmitted to the second user's terminal 140 and the save command is transmitted to the second user's terminal 140, the delete command transmission unit 128 transmits the first user's terminal 130 ) transmits a deletion command instructing to delete the first auxiliary identification number stored in the terminal 130 of the first user.

For example, according to the above-described example, the deletion command transmitting unit 128 transmits the new auxiliary identification number '20002' to the second user's terminal 140 by the transmitting unit 127, and at the same time, the storage command is transmitted. When transmitted to the terminal 140 of the second user, a deletion command instructing to delete the first auxiliary identification number '12321' stored in the terminal 130 of the first user is transmitted to the terminal 130 of the first user. can be sent to

Through this, the first auxiliary identification number is deleted from the terminal 130 of the first user.

On the other hand, after the second user receives the first gold bar, the second user's terminal 140 connects to the digital content providing service server 110 according to the present invention, and the digital limited content for the first gold bar is transferred. You can also consider the situation in which you are provided.

In this regard, according to an embodiment of the present invention, the auxiliary identification number requesting unit 114 receives the digital information for the first gold bar from the terminal 140 of the second user who has received the first gold bar from the first user. When a request for provision of limited content is received, the second user's terminal 140 may request transmission of an auxiliary identification number for the first gold bar.

At this time, when the second user's terminal 140 requests transmission of the auxiliary identification number for the first gold bar from the digital content providing service server 110 , the second user's terminal 140 is newly stored in the second user's terminal 140 . 1 The auxiliary identification number for the gold bar may be transmitted to the digital content providing service server 110 .

At this time, when the history check unit 115 receives the new auxiliary identification number stored in the terminal 140 of the second user as the auxiliary identification number for the first gold bar from the terminal 140 of the second user, It can be checked whether the new auxiliary identification number is stored in the history database 113 .

At this time, if it is confirmed by the history check unit 115 that the new auxiliary identification number is not stored in the history database 113 , the main identification number request unit 116 sends the second user's terminal 140 to the second user's terminal 140 . It is possible to request transmission of the main identification number for the first gold bar inserted in the two-dimensional code printed on the 1 gold bar.

At this time, when the second user requests transmission of the main identification number for the first gold bar from the digital content providing service server 110 to the second user's terminal 140 , the second user's terminal 140 is mounted on the second user's terminal 140 . By recognizing the two-dimensional code printed on the first gold bar through the two-dimensional code recognizer, the main identification number for the first gold bar can 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 second user's terminal 140 may transmit the first primary identification number to the digital content providing service server 110 . there is.

In this way, as the two-dimensional code printed on the first gold bar is recognized by the second user's terminal 140 and the first main identification number that is the main identification number of the first gold bar is extracted, the second user's terminal ( 140), when the first main identification number is received from the digital content providing service server 110, the Euclidean norm extraction unit 117 performs the second operation corresponding to the new auxiliary identification number from the complex information storage unit 111. We can extract the Euclidean norm of a matrix.

In this way, when the Euclidean norm of the second operation matrix is extracted by the Euclidean norm extraction unit 117, the operation unit 118 generates a third column vector having n numbers constituting the first main identification number as components. and, after generating a third row vector having k numbers constituting the new auxiliary identification number as a component, calculating a Kronecker product between the third column vector and the third row vector to obtain a third operation matrix having a size of nxk can create

At this time, the authenticity check unit 119 calculates the Euclidean norm of the third operation matrix, and then checks whether the Euclidean norm of the third operation matrix is the same as the Euclidean norm of the second operation matrix. When it is confirmed that the Euclidean norm is the same as the Euclidean norm of the second operation matrix, it may be confirmed that the first gold bar is genuine.

In this way, when it is confirmed that the first gold bar is genuine by the authenticity check unit 119 , the content transmission unit 120 receives a preset number of second pieces of the plurality of digital limited contents from the content storage unit 112 . After randomly extracting the digital limited contents, the second digital limited contents may be transmitted to the terminal 140 of the second user.

In this way, when the second digital limited contents are transmitted to the second user's terminal 140 by the content transmission unit 120 , the history information storage unit 121 adds the new auxiliary identification number to the history database 113 . can be saved as

In this regard, the operations of the Euclidean norm extraction unit 117 , the calculation unit 118 , the genuineness check unit 119 , the content transmission unit 120 , and the history information storage unit 121 will be described in detail with additional examples. .

First, as in the above example, it is assumed that 'n=6' and 'k=5', and the first main identification number for the first gold bar received from the terminal 140 of the second user is '210012', Assume that the new auxiliary identification number for the first gold bar is '20002'.

At this time, the Euclidean norm extraction unit 117 extracts '8.94', which is the Euclidean norm of the second operation matrix, corresponding to '20002', which is the new auxiliary identification number, from the complex information storage unit 111 as shown in Table 5. can

In this way, when '8.94', which is the Euclidean norm of the second operation matrix, is extracted by the Euclidean norm extraction unit 117, the operation unit 118 divides six numbers constituting the first main identification number '210012' as components. As a third column vector with '

' as a third row vector having five numbers constituting '20002', which is the new auxiliary identification number, as a component.

' can be created.

Thereafter, the operation unit 118 calculates the Kronecker product between the third column vector and the third row vector according to Equations 2 to 4, thereby forming a third operation matrix ' having a size of 6 x 5'.

' can be created.

Then, the authenticity check unit 119 calculates the Euclidean norm of the third operation matrix as '8.94' according to Equation 1, and then '8.94', which is the Euclidean norm of the third operation matrix, is the second When it is confirmed that both Euclidean norms are identical to each other by checking whether they are the same as '8.94', which is the Euclidean norm of the operation matrix, the first main identification number '210012' included in the 2D code printed on the first gold bar is Since it can be seen that the normally issued main identification number is correct, 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 by the authenticity check unit 119, the content transmission unit 120 receives the 'digital limited contents' from the content storage unit 112 as shown in Table 2 above. After randomly extracting a preset number of second digital limited contents from among limited contents 1, digital limited contents 2, digital limited contents 3, ...', the second digital limited contents are transmitted to the second user's terminal 140 can

If it is assumed that the number is '5', the content transmission unit 120 receives the plurality of digital limited contents 'digital limited content 1 and digital limited content 2 from the contents storage unit 112 as shown in Table 2 above. , digitally limited content 3, ...' among the '5' second digital limited contents ', and then the second digital limited contents 'digital limited content 2, digital limited content 4, digital limited content 6, digital limited content 8, and digital limited content 10' are transmitted to the second user's terminal 140. can

In this way, the second digital limited contents 'digital limited content 2, digital limited content 4, digital limited content 6, digital limited content 8, and digital limited content 10' are transmitted to the second user's terminal ( 140), the history information storage unit 121 may additionally store the new auxiliary identification number '20002' in the history database 113 shown in Table 4 as shown in Table 6 below.

A plurality of auxiliary identification numbers having a history of completing the provision of digital limited content

23432

34543

78987

...

12321

20002

3 is a flowchart illustrating an operation method of a digital content providing service server supporting the provision of digital limited content through interworking with a gold bar according to an embodiment of the present invention.

In step S301, a plurality of gold bars (in each of the plurality of gold bars, n (n is a natural number of 2 or more) digit main identification number for identifying each gold bar and k (k is 2 or more) for authenticating each gold bar A natural number) 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 the plurality of gold bars Each preset Euclidean norm (the Euclidean norm is a column vector having as components n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars, and k constituting a k-digit auxiliary identification number It maintains a complex information storage unit in which the Euclidean norm of a matrix having a size of nxk generated by calculating the Kronecker product between row vectors having numbers as components) corresponds to each other and is stored.

In step S302, a content storage unit in which a plurality of preset digital limited contents are stored is maintained.

In step S303, a history database is maintained in which a plurality of auxiliary identification numbers having a history of processing completion of provision of digital limited content are stored.

In step S304, 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 request for provision of digital limited content for the first gold bar is received from ), it requests transmission of an auxiliary identification number for the first gold bar to the terminal of the first user.

In step S305, when the first auxiliary identification number pre-stored in the terminal of the first user is received as the auxiliary identification number for the first gold bar from the terminal of the first user, the first auxiliary identification number is stored in the history database. Check if the secondary identification number is stored.

In step S306, if it is confirmed that the first auxiliary identification number is not stored in the history database, the first gold bar is inserted into the two-dimensional code printed on the first gold bar by the terminal of the first user. Requests the transmission of the main identification number to

In step S307, the first user's terminal recognizes the two-dimensional code printed on the first gold bar and extracts the first main identification number, which is the main identification number of the first gold bar, in the terminal of the first user. When the first main identification number is received from , a first Euclidean norm corresponding to the first auxiliary identification number is extracted from the composite information storage unit.

In step S308, when the first Euclidean norm is extracted, a first column vector having n numbers constituting the first main identification number as components is generated, and k numbers constituting the first auxiliary identification number After generating a first row vector having as components, a Kronecker product between the first column vector and the first row vector is calculated to generate a first operation matrix having a size of nxk.

In step S309, after calculating the Euclidean norm of the first operation matrix, it is checked whether the Euclidean norm of the first operation matrix is the same as the first Euclidean norm, so that the Euclidean norm of the first operation matrix 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 S310, if it is confirmed that the first gold bar is genuine, a preset number of first digital limited contents from among the plurality of digital limited contents are randomly extracted from the contents storage unit, and then the first digital limited contents are added. It is transmitted to the terminal of the first user.

In step S311, when the first digital limited contents are transmitted to the terminal of the first user, the first auxiliary identification number is additionally stored in the history database.

At this time, according to an embodiment of the present invention, when it is confirmed that the Euclidean norm of the first operation matrix is not the same as the first Euclidean norm in step S309, it can be confirmed that the first gold bar is not genuine. there is.

At this time, in step S310, if it is confirmed that the first gold bar is not genuine, a non-provided message is generated indicating that digital limited content cannot be provided as the first gold bar is not genuine, and the first user It can be transmitted to the terminal of

In addition, according to an embodiment of the present invention, in the method of operating the digital content providing service server, when a transfer processing command for transferring the first gold bar to the second user is received from the terminal of the first user, the first requesting terminal information on the terminal of the second user from the user's terminal; when terminal information on the terminal of the second user is received from the terminal of the first user, the second user based on the terminal information attempts a communication connection with the terminal of the second user, and when a communication connection is established with the terminal of the second user, the second user's terminal for the first gold bar inserted in the two-dimensional code printed on the first gold bar requesting transmission of a main identification number, as the two-dimensional code printed on the first gold bar is recognized by the second user's terminal and the first main identification number is extracted, the second user's terminal from the second user's terminal When one main identification number is received, randomly generating a k-digit new auxiliary identification number for the first gold bar. When the new auxiliary identification number is randomly generated, n pieces of the first main identification number After generating a second column vector having numbers as components, and generating a second row vector having k numbers constituting the new auxiliary identification number as components, a Kronecker product between the second column vector and the second row vector is calculated. generating a second operation matrix having a size of nxk by calculating the Euclidean norm of the second operation matrix and then applying the first Euclidean norm stored in the complex information storage unit to the Euclidean norm of the second operation matrix and changing the first auxiliary identification number stored in the complex information storage unit to the new auxiliary identification number, and at the same time transmitting the new auxiliary identification number to the terminal of the second user, the new transmitting, to the terminal of the second user, a storage command instructing to store the auxiliary identification number in the terminal of the second user as the auxiliary identification number for the first gold bar; may include more.

At this time, according to an embodiment of the present invention, in the method of operating the digital content providing service server, the new auxiliary identification number is transmitted to the second user's terminal and, at the same time, the storage command is transmitted to the second user's terminal The method may further include transmitting a deletion command instructing to delete the first auxiliary identification number stored in the terminal of the first user to the terminal of the first user.

At this time, according to an embodiment of the present invention, the method of operating the digital content providing service server is a method of operating the digital limited content for the first gold bar from the terminal of the second user who has received the first gold bar from the first user. requesting transmission of an auxiliary identification number for the first gold bar to the terminal of the second user when a provision request is received; the new auxiliary identification as an auxiliary identification number for the first gold bar from the terminal of the second user When the number is received, checking whether the new auxiliary identification number is stored in the history database, if it is confirmed that the new auxiliary identification number is not stored in the history database, the first to the terminal of the second user requesting transmission of a main identification number for the first gold bar inserted in the two-dimensional code printed on the gold bar; the second user's terminal recognizes the two-dimensional code printed on the first gold bar and the first As the first main identification number, which is the main identification number of the gold bar, is extracted, when the first main identification number is received from the terminal of the second user, the first main identification number corresponding to the new auxiliary identification number is obtained from the composite information storage unit. Extracting the Euclidean norm of the 2 operation matrix, when the Euclidean norm of the second operation matrix is extracted, generating a third column vector having n numbers constituting the first main identification number as a component, and the new auxiliary After generating a third row vector having k numbers constituting an identification number as a component, calculating a Kronecker product between the third column vector and the third row vector to generate a third operation matrix having a size of nxk; After calculating the Euclidean norm of the third operation matrix, it is checked whether the Euclidean norm of the third operation matrix is the same as the Euclidean norm of the second operation matrix, so that the Euclidean norm of the third operation matrix is the Euclidean norm of the second operation matrix If it is confirmed that it is the same as the step of confirming that the first gold bar is genuine, the first gold bar is genuine If it is confirmed, the steps of randomly extracting a preset number of second digital limited contents from among the plurality of digital limited contents from the contents storage unit and then transmitting the second digital limited contents to the terminal of the second user; The method may further include the step of additionally storing the new auxiliary identification number in the history database when the second digital limited contents are transmitted to the terminal of the second user.

In the above, an operation method of a digital content providing service server according to an embodiment of the present invention has been described with reference to FIG. 3 . Here, the operation method of the digital content providing service server according to an embodiment of the present invention may correspond to the configuration of the operation of the digital content providing service server 110 described with reference to FIGS. A detailed description will be omitted.

The method of operating a digital content providing 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 digital content providing 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 execute 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, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, 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 described below, but also all of the claims and all equivalents or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

Claims (12)

1. In the digital content providing service server that supports the provision of digital limited content through interworking with Gold Bar,

   A plurality of gold bars - 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 and k (k is a natural number greater than or equal to 2) for authenticating each gold bar ) 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 Pre-set Euclidean Norm of - The Euclidean norm constitutes a column vector having n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars as components and a k-digit auxiliary identification number. It means the Euclidean norm of a matrix having a size of nxk generated by calculating a Kronecker product between row vectors having k numbers as components - a complex information storage unit that stores the corresponding ones;

   a content storage unit in which a plurality of preset digital limited contents are stored;

   a history database in which a plurality of auxiliary identification numbers having a history of processing completion of provision of digital limited content 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 request for providing digital limited content for 1 gold bar is received;

   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 first auxiliary identification number is stored in the history database History check unit to check whether it is done;

   When it is confirmed that the first auxiliary identification number is not stored in the history database, the primary identification number for the first gold bar inserted in 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;

   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 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. When the identification number is received, a Euclidean norm extracting unit for extracting a first Euclidean norm corresponding to the first auxiliary identification number from the complex information storage unit;

   When the first Euclidean norm is extracted, a first column vector having n numbers constituting the first main identification number as components is generated, and a first column vector having k numbers constituting the first auxiliary identification number as components is generated. an operation unit generating a first operation matrix having a size of nxk by calculating a Kronecker product between the first column vector and the first row vector after generating one row vector;

   After calculating the Euclidean norm of the first operation matrix, it is confirmed that the Euclidean norm of the first operation matrix is the same as the first Euclidean norm, and the Euclidean norm of the first operation matrix is confirmed to be the same as the first Euclidean norm In this case, the first gold bar is genuine checking unit to confirm that it is genuine;

   When it is confirmed that the first gold bar is genuine, a preset number of first digital limited contents among the plurality of digital limited contents are randomly extracted from the contents storage unit, and then the first digital limited contents are stored in the first user's Content transmission unit for transmitting to the terminal; and

   When the first digital limited contents are transmitted to the terminal of the first user, a history information storage unit for additionally storing the first auxiliary identification number in the history database

   A digital content providing service server comprising a.
2. According to claim 1,

   The authenticity check unit

   When it is confirmed that the Euclidean norm of the first operation matrix is not the same as the first Euclidean norm, it is confirmed that the first gold bar is not genuine;

   The content transmission unit

   When it is confirmed that the first gold bar is not genuine, digital content is generated and transmitted to the terminal of the first user by generating a non-provided message indicating that digital limited content cannot be provided as the first gold bar is not genuine. Serving Servers.
3. According to claim 1,

   When a transfer processing command for transferring the first gold bar to the second user is received from the first user's terminal, the terminal information request unit requests terminal information on the second user's terminal from the first user's terminal ;

   When terminal information on the terminal of the second user is received from the terminal of the first user, a communication connection with the terminal of the second user is attempted based on the terminal information, and communication connection with the terminal of the second user is received When this is done, a request unit for requesting transmission of a main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar to the second user's terminal;

   As the second user's terminal recognizes the two-dimensional code printed on the first gold bar and the first main identification number is extracted, when the first main identification number is received from the second user's terminal, the second a generator that randomly generates a k-digit new auxiliary identification number for one gold bar;

   When the new auxiliary identification number is randomly generated, a second column vector having n numbers constituting the first main identification number is generated as a component, and k numbers constituting the new auxiliary identification number are generated as components an arithmetic matrix generator generating a second arithmetic matrix having a size of nxk by calculating a Kronecker product between the second column vector and the second row vector after generating a second row vector;

   After calculating the Euclidean norm of the second operation matrix, the first Euclidean norm stored in the complex information storage unit is changed to the Euclidean norm of the second operation matrix, and the first Euclidean norm stored in the complex information storage unit 1 an update processing unit for changing the auxiliary identification number to the new auxiliary identification number; 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 Transmitter that transmits to the user's terminal

   A digital content providing service server further comprising a.
4. 4. The method of claim 3,

   When the new auxiliary identification number is transmitted to the terminal of the second user and the storage command is transmitted to the terminal of the second user, delete the first auxiliary identification number stored in the terminal of the first user A deletion command transmission unit for transmitting an instructing deletion command to the terminal of the first user

   A digital content providing service server further comprising a.
5. 5. The method of claim 4,

   The auxiliary identification number request unit

   When a request for provision of digital limited content for the first gold bar is received from the terminal of the second user to whom the first gold bar has been transferred from the first user, the second user's terminal is used for auxiliary identification of the first gold bar request the transmission of the number;

   The history check unit

   When the new auxiliary identification number is received from the second user's terminal as the auxiliary identification number for the first gold bar, it is checked whether the new auxiliary identification number is stored in the history database,

   The main identification number request unit

   If it is confirmed that the new auxiliary identification number is not stored in the history database, transmission of the primary identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar to the terminal of the second user request,

   The Euclidean norm extraction unit

   As the two-dimensional code printed on the first gold bar is recognized by the second user's terminal and the first main identification number, which is the main identification number of the first gold bar, is extracted, the first When the main identification number is received, extracting the Euclidean norm of the second operation matrix corresponding to the new auxiliary identification number from the complex information storage unit,

   the calculation unit

   When the Euclidean norm of the second operation matrix is extracted, a third column vector having n numbers constituting the first main identification number as a component is generated, and k numbers constituting the new auxiliary identification number are generated as components After generating a third row vector having

   The authenticity check unit

   After calculating the Euclidean norm of the third operation matrix, it is checked whether the Euclidean norm of the third operation matrix is the same as the Euclidean norm of the second operation matrix, so that the Euclidean norm of the third operation matrix is the Euclidean norm of the second operation matrix If it is confirmed that it is the same as the gambling, it is confirmed that the first gold bar is genuine,

   The content transmission unit

   When it is confirmed that the first gold bar is genuine, a preset number of second digital limited contents from among the plurality of digital limited contents are randomly extracted from the contents storage unit, and then the second digital limited contents are added to the second user's sent to the terminal,

   The history information storage unit

   When the second digital limited contents are transmitted to the terminal of the second user, the digital contents providing service server further stores the new auxiliary identification number in the history database.
6. In the operating method of a digital content providing service server that supports the provision of digital limited content through interworking with a gold bar,

   A plurality of gold bars - 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 and k (k is a natural number greater than or equal to 2) for authenticating each gold bar ) 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 Pre-set Euclidean Norm of - The Euclidean norm constitutes a column vector having n numbers constituting an n-digit main identification number assigned to each of the plurality of gold bars as components and a k-digit auxiliary identification number. Meaning the Euclidean norm of a matrix having a size of nxk generated by calculating a Kronecker product between row vectors having k numbers as components - maintaining a complex information storage unit stored in correspondence with each other;

   maintaining a content storage unit in which a plurality of preset digital limited contents are stored;

   maintaining a history database in which a plurality of auxiliary identification numbers having a history of processing completion of provision of digital limited content 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. requesting transmission of an auxiliary identification number for the first gold bar to the terminal of the first user when a request for providing digital limited content for one gold bar is received;

   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 first auxiliary identification number is stored in the history database Check that it is done;

   When it is confirmed that the first auxiliary identification number is not stored in the history database, the primary identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar by the terminal of the first user requesting transmission;

   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 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. when the identification number is received, extracting a first Euclidean norm corresponding to the first auxiliary identification number from the composite information storage unit;

   When the first Euclidean norm is extracted, a first column vector having n numbers constituting the first main identification number as components is generated, and a first column vector having k numbers constituting the first auxiliary identification number as components is generated. generating a first arithmetic matrix having a size of nxk by generating one row vector and then calculating a Kronecker product between the first column vector and the first row vector;

   After calculating the Euclidean norm of the first operation matrix, it is confirmed that the Euclidean norm of the first operation matrix is the same as the first Euclidean norm, and the Euclidean norm of the first operation matrix is confirmed to be the same as the first Euclidean norm in this case, confirming that the first gold bar is genuine;

   When it is confirmed that the first gold bar is genuine, a preset number of first digital limited contents among the plurality of digital limited contents are randomly extracted from the contents storage unit, and then the first digital limited contents are added to the first user's transmitting to the terminal; and

   When the first digital limited contents are transmitted to the terminal of the first user, additionally storing the first auxiliary identification number in the history database

   Operating method of a digital content providing service server comprising a.
7. 7. The method of claim 6,

   The step of confirming that the first gold bar is genuine

   If it is confirmed that the Euclidean norm of the first operation matrix is not the same as the first Euclidean norm, it is confirmed that the first gold bar is not genuine;

   The step of transmitting to the terminal of the first user is

   When it is confirmed that the first gold bar is not genuine, digital content is generated and transmitted to the first user's terminal by generating a non-provided message indicating that digital limited content cannot be provided as the first gold bar is not genuine How the provisioning service server works.
8. 7. The method of claim 6,

   when a transfer processing command for transferring the first gold bar to a second user is received from the first user's terminal, requesting terminal information on the second user's terminal from the first user's terminal;

   When terminal information on the terminal of the second user is received from the terminal of the first user, a communication connection with the terminal of the second user is attempted based on the terminal information, and communication connection with the terminal of the second user is received if this is done, requesting the second user's terminal to transmit the main identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar;

   As the second user's terminal recognizes the two-dimensional code printed on the first gold bar and the first main identification number is extracted, when the first main identification number is received from the second user's terminal, the second randomly generating a new k-digit auxiliary identification number for 1 gold bar;

   When the new auxiliary identification number is randomly generated, a second column vector having n numbers constituting the first main identification number is generated as a component, and k numbers constituting the new auxiliary identification number are generated as components generating a second arithmetic matrix having a size of nxk by generating a second row vector and then calculating a Kronecker product between the second column vector and the second row vector;

   After calculating the Euclidean norm of the second operation matrix, the first Euclidean norm stored in the complex information storage unit is changed to the Euclidean norm of the second operation matrix, and the first Euclidean norm stored in the complex information storage unit 1 changing the auxiliary identification number to the new auxiliary identification number; 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 step of transmitting to the user's terminal

   Operating method of a digital content providing service server further comprising a.
9. 9. The method of claim 8,

   When the new auxiliary identification number is transmitted to the terminal of the second user and the storage command is transmitted to the terminal of the second user, delete the first auxiliary identification number stored in the terminal of the first user Transmitting a deletion command instructing the first user to the terminal

   Operating method of a digital content providing service server further comprising a.
10. 10. The method of claim 9,

    When a request for provision of digital limited content for the first gold bar is received from the terminal of the second user who has received the first gold bar from the first user, the second user's terminal is used to identify the first gold bar as auxiliary requesting transmission of the number;

    when the new auxiliary identification number is received from the second user's terminal as the auxiliary identification number for the first gold bar, checking whether the new auxiliary identification number is stored in the history database;

    If it is confirmed that the new auxiliary identification number is not stored in the history database, transmission of the primary identification number for the first gold bar inserted in the two-dimensional code printed on the first gold bar to the terminal of the second user requesting;

    As the two-dimensional code printed on the first gold bar is recognized by the second user's terminal and the first main identification number, which is the main identification number of the first gold bar, is extracted, the first when the main identification number is received, extracting the Euclidean norm of the second operation matrix corresponding to the new auxiliary identification number from the complex information storage unit;

    When the Euclidean norm of the second operation matrix is extracted, a third column vector having n numbers constituting the first main identification number as a component is generated, and k numbers constituting the new auxiliary identification number are generated as components generating a third arithmetic matrix having a size of nxk by generating a third row vector having a size of nxk by calculating a Kronecker product between the third column vector and the third row vector;

    After calculating the Euclidean norm of the third operation matrix, it is checked whether the Euclidean norm of the third operation matrix is the same as the Euclidean norm of the second operation matrix, so that the Euclidean norm of the third operation matrix is the Euclidean norm of the second operation matrix If it is confirmed that the same as gambling, confirming that the first gold bar is genuine;

    When it is confirmed that the first gold bar is genuine, a preset number of second digital limited contents among the plurality of digital limited contents are randomly extracted from the contents storage unit, and then the second digital limited contents are added to the second user's transmitting to the terminal; and

    When the second digital limited contents are transmitted to the terminal of the second user, additionally storing the new auxiliary identification number in the history database

    Operating method of a digital content providing service server further comprising a.
11. A computer-readable recording medium recording a computer program for executing the method of any one of claims 6 to 10 through combination with a computer.
12. A computer program stored in a storage medium for executing the method of any one of claims 6 to 10 through combination with a computer.

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