JP2002236836A - Commodity store device using communication network and commodity store program therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote sales of a commodity including a literary work by exciting buying will for a customer by group registration in network sales, and reduce a load for a checkup by checking up a group member by a server on a network. SOLUTION: When selling the literary work on the network, authentication ID of a buyer is used, and the buyer constructs a registered group member by a registered member. The buyer and the registered group member are registered in a customer DB 201 by a member registering part 20. A sales-use control part 30 executes authentication by referring to the customer DB 201, and when a person belonging to the registered group member buys or uses the same literary work, not only the literary work is bought by a normal rate but also the merits such as a discount and a small present are imparted. An arrangement is set up for charging and demanding a royalty for a copyright holder on the network when a person other than the buyer uses the literary work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a merchandise store apparatus using a communication network, which is suitable for purchasing merchandise from a video store, a book store, and the like constructed on a communication network, and to sell the merchandise. Regarding the store program.

[0002]

2. Description of the Related Art In general, with the rapid increase of the Internet population, anyone can build a store on a communication network (hereinafter simply referred to as a "net") while staying at home. Is being improved. 2. Description of the Related Art Conventionally, when a purchaser purchases a product at a store built on the Internet, all purchasers pay a regular fee to purchase a desired product.

[0003] On the other hand, in a normal distribution mode without using the Internet, when a product is purchased in a group, all of the group members who are consumers at the time of purchase purchase the product at a discount rate. A mechanism for purchasing has already been established.

[0004] In some cases, the purchased goods purchased through the Internet may be copyrighted works such as television programs, electronic books, computer software, and the like. At present, a copyrighted work can be copied to a recording medium such as a disk, distributed to an acquaintance, or distributed through a net.

[0005]

However, there is no system for establishing a predetermined group in the current product purchase on the Internet and discounting when purchasing the product by the group, and the group purchase system is extended. In addition, when the group members are registered and the registered members purchase products, a great deal of labor is required for operations such as verification.

[0006] In addition, some consumers know the goods on the Internet by mouth and purchase them afterwards. In this case, they are not group purchases and must be purchased at regular rates. Can not.

[0007] Furthermore, even if a discount system for group purchase used in a distribution form other than the Internet is adopted as it is on the Internet, even among consumers who have purchased the group, the product has just been registered as a group and is disgusting. Some people go out with friends. In this case, the group purchase system becomes a shackle for the person, and it is necessary to purchase unnecessary products.

[0008] In addition, when a product purchased on the Internet is a copyrighted work, an acquaintance can use the copyrighted work without permission of the writer, which is not preferable because the copyrighted work is illegally used.

[0009] The present invention has been made in view of the above-mentioned circumstances, and enables a user to purchase a product at a discount price by group purchase when purchasing the product on the Internet. It is an object of the present invention to provide a merchandise dealer apparatus using a communication network that can prompt payment of a copyright fee for a product, and a program therefor.

[0010]

Means for Solving the Problems The present invention has the following constitution to solve the above-mentioned problems. That is, a merchandise store apparatus using a communication network that sells merchandise to a plurality of customers over a network, wherein other customers after a second customer who endorsed by the introduction of the first customer who first purchased the merchandise. A member registration means for registering as at least two or more registered group members including the first customer; and authenticating that the other customer is a registered group member registered by the member registration means when purchasing the product. Authentication means, a privilege granting means for granting a sales privilege to the customer when the other customer is authenticated by the authentication means, And a merchandise store apparatus using a communication network having a sales management unit for performing the sales.

[0011] With this configuration, when a product is purchased on the network by the merchandise store device, the registered group member is registered by the member registration means, and the registered group member must be registered by the authentication means. Is authenticated, the merchandise to be purchased is granted by the privilege granting means, and the sales management means bills the merchandise based on the privilege.

[0012] In the merchandise store apparatus using the communication network, the member registration means receives an input of a unique ID assigned to each purchaser and manages the authentication ID management means; An ID group member registration receiving means for receiving and managing the authentication ID of a registered group member registered by the purchaser, a unique ID assigned to each purchaser, or a registered group member registered by the purchaser And a customer database for storing the authentication ID and attribute data associated therewith.

With this configuration, the authentication I
The unique ID of the purchaser is accepted and managed by the D management means, and the authentication ID of the registered group member is managed by the ID group member registration acceptance means and stored in the customer database. At this time, the attribute data for associating the purchaser with the unique ID or authentication ID of each registered group member is stored together in the customer database.

[0014] In the merchandise store apparatus using the communication network, the sales and use managing means may be arranged such that when the registered group member purchases or watches a copyrighted work,
Group matching means for authenticating by referring to the customer database; billing means for prompting payment of a copyright fee when the purchaser or registered group member purchases or views the work; The registered person or the registered group member pays a predetermined fee charged by the billing means, and thereafter registers a copyright database registered in a database managed by the copyright management center to permit use of the copyrighted work. Means.

[0015] With this configuration, when the purchaser purchases or views the copyrighted work via the group collation means, the sales and use management means refers to the customer database and is a registered group member. Authenticate.
The sales use managing means prompts the payment of the copyright fee by the billing means, and manages the copyright management center by the copyright database registering means when the purchaser or the registered group member pays the fee. Register in the database.

Further, as a merchandise store program, it is a computer-readable program which is connected to a server managed by the copyright management center via a network line and which is readable by a computer. A first step of establishing a group on a database by a registered group member registered by a purchaser using the authentication ID of the purchaser, and providing a sales privilege when the registered group member purchases the work. And a second step of prompting the user to pay the copyright fee. The computer is configured to execute the first step and the second step.

In the merchandise store program, the first step is a step of receiving an input of a unique ID assigned to each purchaser and registering the same in a customer database; Receiving an authentication ID of a registered group member and registering it in a customer database; and an authentication ID assigned to each purchaser.
And the authentication ID of the registered group member registered by the purchaser
And storing the attribute data together with the attribute data in the customer database.

Further, in the merchandise store program, the second step is a step of performing authentication by referring to the customer database when a registered group member registered in the customer database purchases the work. And the unique ID or authentication ID are added to the work, and the work is
Sending authentication data that can use the copyrighted work when there is authentication with D or the authentication ID.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram cited for explaining a connection form of a copyrighted work promotion system for realizing a copyrighted work promotion method using a communication network according to the present invention. Here, a literary work such as a video or a book is illustrated as the sale product. For this purpose, on a communication network such as the Internet 4, a copyright dealer server 1, a copyright management center device 2 owned by a copyright dealer, which is a form of a commodity dealer, and a net user who is a purchaser, A plurality of operating net user terminals 3 are connected. Then, the copyrighted product store server 1 manages the authentication ID of the copyrighted purchaser and the authentication ID of the registered group member. The copyright management center device 2 manages the copyright of the purchased work. Further, the net user terminal 3 is operated by a purchaser, and here, performs a procedure for purchasing a copyrighted work, and performs viewing after the purchase.

For example, if the copyright store server 1 is a video store, first, the purchaser A gives the store a video name (work) X as a product desired to be purchased and the purchaser's own authentication ID. To the retailer and purchase it at the regular price. Also, an acquaintance B who wishes to purchase the video name X introduced by the purchaser A can register as a registered group member upon request at the time of purchase. Buyer B registered as a registered group member purchases or watches the same video as purchaser A, instead of paying the regular fee, purchasing the video at a group discount price, for example, 25% off the regular fee. Or you can watch. Also, Buyer B does not receive the group discount price,
It is possible to receive advantages such as being able to receive other articles as small articles.

The buyer A who has purchased the product at the regular price
Means that when the number of registered group members exceeds a certain number for a video name X that is the same product, a predetermined upper limit is determined and a back margin can be received, or another product can be received as a small product. If you can enjoy the benefits of purchasing, willingness to buy will not decline.

On the other hand, when viewing the copyrighted work, if the machine to be viewed is the net user terminal 3 connected to the Internet, when viewing the work with this machine, the user is connected to the copyright management center apparatus 2. You. Then, the ID of the viewer and the purchased work are confirmed by the copyright management center device 2, and if the copyright fee has not been paid, a billing request for paying the necessary copyright fee to the copyright holder through the communication network is made. Is made automatically.

FIG. 2 shows the internal structure of the copyrighted shop terminal expanded in function. Each block shown here is
Specifically, it can be realized on a computer by a CPU, a memory, and the like. Copyright store server 1
Is a communication interface unit 10, a member registration unit 20,
It comprises a sales / use management unit 30 and a purchased product management unit 40. The member registration unit 20 has an ID group member registration unit 203 as a member registration unit for registering a purchaser as a registered group member. The sales / usage management unit 30 has a registered group member checking unit 301 as an authentication unit for authenticating the registered group member, a privilege granting unit for giving a sale privilege, and a privilege granting unit. Billing section 302 as a sales management means for making a request for a product based on a privilege provided by the user.
And

The communication interface unit 10 is a network interface for connecting to the Internet 4 here. The member registration unit 20 includes a customer database (DB) 201, an authentication ID management unit 202, and an ID group member registration reception unit 203. The member registration unit 20 uses the purchaser's authentication ID when selling a copyrighted work on the Internet, and constructs a group on a database (customer DB 201) built by registered group members registered by the purchaser. Has functions.

The member registration unit 20 stores in the customer DB 201
The unique purchaser authentication ID assigned to each purchaser is associated with the authentication ID of a registered group member registered by the purchaser, and is stored together with the attribute data. FIG. 4 shows customer D
FIG. 4 is a schematic diagram showing a data structure of B. As shown in FIG. 4, here, a purchased product name is illustrated as attribute data. The authentication ID management unit 202 has a function of receiving an input of a unique ID assigned to each purchaser and managing the input. The ID group member registration receiving unit 203 has a function of receiving an authentication ID of a registered group member registered by a purchaser and registering the authentication ID in the customer DB 201. Here, the authentication ID assigned to each purchaser is associated with the authentication ID of a registered group member registered by the purchaser. Then, the purchased product identification number of the purchased product (including the copyrighted work) and the authentication ID are stored in the customer DB 201 in association with each other.

The sales / usage management unit 30 includes a registered group member verification unit 301, a billing unit 302, and a copyright DB registration unit 303. This sales and use management unit 30
Has a function of giving a sales privilege when a registered group member purchases a product, and prompting payment of a copyright fee when the product to be purchased is a copyrighted work.

[0027] The registered group member verification unit 301 determines that the customer D
When a registered group member registered in B201 purchases or views a copyrighted work, it has a function of performing authentication by referring to the customer DB201. The billing unit 302
When a registered group member purchases or uses a product containing the same copyrighted work, it has a function of giving a sales privilege and prompting payment of a copyright fee.

The copyright DB registration unit 303 is registered by the purchaser and the purchaser, and is registered by the registered group member verification unit 3
01, the registered group member who has been authenticated
By paying the prescribed fee charged by 2
Thereafter, it has a function of registering in a database (copyright DB 22) managed by the copyright management center device 2 to permit the use of the work. The purchased merchandise management unit 40 has a function of managing and adjusting a series of flows from the receipt of the merchandise ordered by the purchaser to the inventory survey to delivery.

FIG. 3 shows the internal configuration of the copyright management center device 2 with its functions expanded. Here, only blocks related to the present invention are cited, and each block shown here can be specifically realized on a computer by a CPU, a memory, and the like. The copyright management center device 2 includes a communication interface unit 21 and a copyright D
B22, a registration reception processing unit 23, a copyright DB collating unit 24, and a copyright fee billing unit 25.

The communication interface unit 21 is a network interface for connecting to the Internet 4 like the copyright store server 1.

The copyright DB 22 stores the copyrighted product store server 1
Is a purchaser who has paid a regular fee registered via the copyright DB registration unit 303, or a registered group member who has been registered as a group by the purchaser and paid a predetermined fee, Are stored.

The registration reception processing unit 23 has a function of receiving registration from the copyright DB registration unit 303 of the copyright store server 1 and reflecting the registration in the copyright DB 22. Copyright D
The B matching unit 24 has a function of referring to the copyright DB 22 to monitor whether or not the user is a net user who has already used a copyrighted work through a predetermined procedure such as payment of a copyright fee. The copyright fee charging unit 25 has a function of charging a net user who has not paid a copyright fee based on the result of the comparison by the copyright DB matching unit 24.

FIGS. 5 to 7 are diagrams cited for explaining the operation of the embodiment of the present invention, and include a copyright store server 1, a net user terminal 3, and a copyright management center device 2.
6 is a sequence chart showing a flow of operation during the operation. Hereinafter, the operation of the embodiment of the present invention shown in FIGS. 1 to 4 will be described in detail with reference to FIGS.

In the sequence chart shown in FIG.
First, the purchaser A using the net user terminal 3 sends the purchaser's own authentication ID to the store (step S5).
1) By receiving the ID confirmation of the copyright store server 1 (step S52), it is possible to place an order for the product X desired to be purchased (step S53). Buyer's own authentication ID
Is confirmed by the authentication ID management unit 202, and a corresponding process is performed by the purchased product management unit 40 for the order of the purchased product X. The purchased merchandise management unit 40 performs a procedure for arranging and delivering the merchandise X (step S5).
4).

On the other hand, the copyright store server 1 issues a registration group member registration request to the purchaser A of the net user terminal 3 (step S56). The authentication ID of the member to be registered as a member is transmitted (step S57).

In the copyrighted product store server 1, the authentication ID of the registered group member is stored in the ID group member registration receiving unit 203.
Is stored in the customer DB 201 (step S58), and a request for payment of a regular fee is made to the net user terminal 3 as the purchaser A via the billing unit 302 (step S59). Copyright store server 1
Further, after confirming payment of the regular fee by the purchaser A, the purchaser A is registered in the copyright management center device 2 via the copyright DB registration unit 303 (step S61). The information is actually registered in the copyright DB 22 by the management center device 2 (step S62).

In the sequence chart shown in FIG.
The purchaser B, who is a net user registered as a registered group member, transmits an authentication ID to the copyright store server 1 to order the same product X as the purchaser A (step S6).
3). By receiving the ID confirmation of the copyright store server 1 (step S64), it is possible to place an order for the product X desired to be purchased (step S65), and to arrange the product X and deliver the product X (step S66). . At this time, at the same time, a group collation operation is performed in the registered group member collation unit 301 of the copyright shop server 1 (step S68).

The collation of the registered group members is performed in the customer DB 20
1 is performed. When the authentication is obtained by the collation of the registered group members, the billing unit 3
02, a payment request is made to the purchaser B at a discounted rate (step S69). The copyright store server 1 further confirms the payment of the fee by the purchaser B using the net user terminal (step S70), and then registers the purchaser B via the copyright DB registration unit 303 in the copyright management center device. 2 to perform the DB registration procedure (step S
71) As a result, the purchaser B is actually registered in the copyright DB 22 in the copyright management center device 2 (step S72).

The sequence chart shown in FIG. 7 exemplifies a case of viewing a copyrighted work. First, a copy of a copyrighted work such as music purchased by Buyer A is copied to a CD-R (Rewritab).
le) (step S73), and it is assumed that the CD-R has been passed to the viewer C (step S74).

Assuming that the viewer C views the copyrighted work at his own Internet user terminal 3 connected to the Internet, the viewer C's net user terminal 3 views the copyrighted CD-R. In doing so, the user first inputs an authentication ID, and then is automatically connected to the copyright management center device 2. This is because software connected to the copyright management center device 2 when reproducing a copyrighted work is incorporated in the main body information data of the copyrighted work, and the software is activated every time the software tries to reproduce the copyrighted work. This is because it is configured to do so.

Next, the copyright management center device 2 checks the ID of the viewer C (step S76). Specifically, the copyright DB collating unit 24 of the copyright management center device 2 performs authentication with reference to the copyright DB 22. If the authentication has not been obtained, that is, if the viewer C has not paid the copyright fee yet, the copyright fee billing unit 25 bills the necessary copyright fee via the Internet 4 (step S77). Then, by confirming the payment of the copyright fee by the viewer C, the viewing of the copyrighted work is permitted, and the viewer C is registered in the built-in copyright DB 22 (step S79).

As shown in FIG. 8, a case where the copyright fee is paid for the illegal use of the work may be as follows. That is, when the purchaser A makes a purchase request for the work (commodity) X, the work store server 1 sends the purchaser's authentication ID (the authentication ID of the registered group member)
Including). And the copyrighted product store server 1
Performs an ID adding operation of adding the authentication ID of the purchaser A to the product X to be transmitted when the authentication ID is transmitted from the purchaser A. Note that the ID adding operation may be performed by adding an authentication ID to the head of the information signal data of the product, encrypting the product, and further scrambling the product.

When transmitting the product X for which the ID addition operation has been completed, the check software for determining whether or not the authentication ID and the identification number of the product X correspond to each other is transmitted. Therefore, when the purchaser tries to reproduce the purchased product X, the check software is activated,
It is checked whether the authentication ID of the device T added to the product X is the same as the authentication ID of the viewer input at the time of reproduction. Therefore, if the authentication of the check software is obtained, the product X can be reproduced and viewed, but if the authentication of the check software is not obtained, the product X cannot be reproduced.

Note that the authentication ID is the purchaser (unique I
D or the authentication ID of a registered group member), but may be an apparatus ID of an apparatus for reproducing a copyrighted work. When this device ID is used, it is checked whether the device ID of the playback device is the same as the authentication ID added to the sold work X as an authentication check, and Is convenient because it is possible to save the trouble of inputting the authentication ID of the viewer when viewing.

FIG. 9 shows a flow of processing of the copyrighted work store server 1. That is, the copyright store server 1
Receives the order of the product X by the purchaser A who is the net user in the purchased product management unit 40 (step S81), and issues a registration request for a registered group member at this time (step S82).

The net user having received the registration request of the registered group member transmits the authentication ID of the registered group member. Then, upon receiving this authentication ID via the authentication ID management unit 202 (step S83), the copyrighted work shop server 1 registers the purchaser A and the purchaser B as a group in the customer DB 201 (step S84). At the same time, a payment request at a regular fee is issued to the purchaser A of the net user via the billing unit 302 (step S85).

When the purchaser B purchases the same product X, the registered group member verification unit 301 performs a group verification procedure (step S87), and only when the authentication is obtained, does the sales of the product X at a discounted rate. Is performed (step S88). If the authentication is not obtained, the process ends. If an order for the product X has been made by a person other than the purchaser A (step S86), the processing from step S82 is repeated.

In this way, when purchasing a product, the purchaser registers an acquaintance desired by the purchaser as a registered group member, and when an acquaintance registered as a registered group member purchases or views the same product, a regular fee is charged. Instead of paying for, you can purchase or view products only at a group discount price, for example, a copyright fee, or enjoy the benefits of paying a regular fee and receiving other items as small gifts. it can.

It is to be noted that, for the purchaser A who purchases the product first, the group discount rate can be enjoyed.
When the number of purchases of the same product by the registered group member reaches a certain number, a discount fee may be paid back under the same or a certain upper limit as the registered group member.
Specifically, there is provided an operation means for counting items having the same product identification number of the registered group member in the customer DB, and when the value of the operation means reaches a preset numerical value, a signal is sent to the billing unit to charge the billing unit. It is convenient if the billing unit is configured to pay back to the purchaser A.

Further, as described above, when a copyrighted work is sold on a network, a purchaser's authentication ID is used, and a group is constructed on a database by a registered group member registered by the purchaser. And a second step of giving a sales privilege and encouraging the payment of a copyright fee when the registered group member purchases the copyrighted work, and further comprises the program May be configured as a recording medium on which is recorded.

In particular, the second step includes the steps of: when a registered group member registered in the customer database purchases the literary work, referring to the customer database to perform authentication; and Adding an authentication ID to the work, and transmitting authentication data that can be used by the work when the work is authenticated with the unique ID or the authentication ID. The copyright department can be protected.

[0052]

As described above, according to the present invention, a registered group member is registered, and when a registered group member who is registered in the group purchases the same product, he or she always purchases the same product at a group discount rate. By doing so, the willingness to purchase is increased, and the load on the matching can be reduced by checking the registered group members on a server on the net.

Also, when purchasing goods on the Internet, the purchaser's willingness to purchase can be increased by enjoying the merits of the group purchasers, and the sales of the goods and the spread thereof can be promoted by the purchasers' free will.

Further, when a third party uses the copyrighted product when the product is a copyrighted product, the payment of the copyright fee is monitored by monitoring the payment of the copyright fee through the Internet. It is possible to prohibit the use of an illegal work by charging a fee to the user or constructing a mechanism for preventing the work from being reproduced.

When selling a work on the Internet, the authentication ID of the purchaser is used, and a group is constructed by registered group members registered by the purchaser. When used, it gives a sales privilege or urges the payment of a copyright fee. By doing so, especially by registering relatives, friends, acquaintances, etc. as a group, If the merchandise including the merchandise can be purchased at a low price, which is a discounted price, and if other merits can be enjoyed, the promotion of merchandise sales will be promoted, and if necessary, the sharing of information within the group will be promoted.

Then, by transmitting this shared information to more friends, acquaintances, and the like by word of mouth and the like, it becomes possible to promote the sale of products. In addition, when viewing a copyrighted work, if a person other than the person who paid and paid for viewing is watching the copyrighted work, a mechanism for paying the copyright fee to the author is constructed every time, or a legitimate fee is charged. If you do not pay, you will not be able to view the copyrighted work,
The use of illegal copyrighted work is banned, and will bring legitimate interests to copyright owners.

[Brief description of the drawings]

FIG. 1 is a diagram cited for explaining a connection form of a copyrighted work sales promotion system for realizing a copyrighted work sales promotion method using a communication network in the present invention.

FIG. 2 is a block diagram showing an internal configuration of the copyrighted shop terminal shown in FIG.

FIG. 3 is a block diagram showing the internal configuration of the copyright management center shown in FIG.

FIG. 4 is a schematic diagram showing a data structure of a customer DB shown in FIG. 2;

FIG. 5 is a sequence chart cited for explaining the operation of the embodiment of the present invention.

FIG. 6 is a sequence chart cited for explaining the operation of the embodiment of the present invention.

FIG. 7 is a sequence chart cited for explaining the operation of the embodiment of the present invention.

FIG. 8 is a sequence chart cited for explaining a selling operation for a copyrighted work according to the embodiment of the present invention.

FIG. 9 is a flowchart showing a processing flow of the copyrighted work shop server 1 shown in FIGS. 1 and 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Copyright store server 2 ... Copyright management center device 3 ... Net user terminal 4 ... Internet 10 (21) ... Communication interface unit 20 ... Member registration unit 22 ... Copyright DB 23 ... Registration reception processing unit 24 ... Copyright DB collating unit 25: copyright fee charging unit 30: sales / use management unit 40: purchased merchandise management unit 201: customer DB 202: authentication ID management unit 203: ID group member registration receiving unit 301: registered group member verification unit 302 … Billing unit 303… Copyright DB registration unit

Claims (6)

[Claims] 1. A merchandise store apparatus using a communication network for selling merchandise to a plurality of customers on a network, wherein the merchandise store apparatus includes a second customer after the first customer who has purchased the merchandise for the first time. Is a registered group member registered as at least two or more registered group members including the first customer, and a registered group member registered by the member registered unit when the other customer purchases the product. Authentication means for authenticating that the other customer has been authenticated by the authentication means,
A merchandise store using a communication network, comprising: a privilege granting unit for granting a sales privilege to the customer; and a sales management unit for billing the product based on the privilege of the privilege granting unit. apparatus. 2. The member registration unit receives an input of a unique ID assigned to each purchaser and manages the ID, and an authentication ID of a registered group member registered by the purchaser. ID group member registration receiving means for receiving and managing the ID group member registration information, and a unique ID assigned to each purchaser or an authentication ID of a registered group member registered by the purchaser together with attribute data for association with the attribute data. The merchandise store apparatus using the communication network according to claim 1, further comprising a customer database. 3. The sales managing means includes: a group collating means for performing authentication by referring to the customer database when the registered group member purchases or watches a work; and Billing means for prompting the payment of a copyright fee when purchasing or viewing, and the purchaser and the registered group all pay a predetermined fee charged by the billing means, and thereafter, 3. A copyright database registering means for registering in a database managed by the copyright management center so as to permit use of the copyrighted work, comprising: a communication network according to claim 1 or claim 2. Merchandise store equipment. 4. A computer-readable program which is connected to a server managed by a copyright management center via a network line and which uses a purchaser's authentication ID when selling a copyrighted work on the network. A first step of building a group on a database by a registered group member registered by the purchaser; and when the registered group member purchases the work,
A merchandise store program comprising: a second step of giving a sales privilege and encouraging payment of a copyright fee, and causing a computer to execute the first step and the second step. 5. The first step is a step of receiving an input of a unique ID assigned to each purchaser and registering the unique ID in a customer database; and a step of registering an authentication ID of a registered group member registered by the purchaser. Accepting and registering in a customer database; associating an authentication ID assigned to each purchaser with an authentication ID of a registered group member registered by the purchaser; and storing the authentication ID together with the attribute data in the customer database. The program according to claim 4, further comprising: 6. The second step includes: when a registered group member registered in the customer database purchases the work, authenticates by referring to the customer database; and the unique ID or An authentication ID is added to the work, and the work is unique ID or authentication ID.
Transmitting the authentication data that allows the copyrighted work to be used when the authentication has been made.