JP6592722B1 - Content platform system - Google Patents

Abstract

A secure platform for rights trading is provided. The present invention is a content platform system including an owner terminal, a user terminal, and a content license server. The owner terminal transmits content information including the content and one or more conditions regarding the use of the content to the content / license server, and the content / license server provides the received content information to the user terminal so as to be usable. . The user terminal transmits a use request received from the user, which can be generated for each content condition, to the content / license server. The content / license server broadcasts and shares usage permission information including the content and conditions related to the usage request and the user terminal to the blockchain network, and transmits a usage permission notification to the user terminal. [Selection] Figure 1

Description

  The present invention relates to a content platform system, and more particularly to a system related to content licensing using a blockchain network.

  An electronic commerce system for buying and selling digital contents has been proposed (see, for example, Patent Document 1). In this electronic commerce system, digital content sellers collect the price of digital content so that they can collect profits and recover their investment in digital content development and sales for sales of digital content. Set.

JP 2010-272033 A

  The above-described technology cannot solve the problem of falsification of the content itself or the content transaction history.

  Therefore, an object of the present invention is to provide a system capable of performing safe content transactions.

According to the present invention, an owner terminal that owns content, a user terminal that uses the content, a content license server that is connected to each of the owner terminal and the user terminal via a network, A content platform system including
The owner terminal transmits content information including the content received from the owner and one or more conditions regarding use of the content to the content / license server,
The content license server provides the received content information to the user terminal so that it can be used,
The user terminal is a usage request received from a user and transmits a usage request that can be generated for each condition of the content to the content / license server,
The content / license server broadcasts and shares usage permission information including the content and the conditions related to the usage request and the user terminal to a blockchain network, and sends a usage permission notification to the user terminal. Send
The user terminal that has received the use permission notification obtains or uses the content platform system with reference to the use permission information broadcast to the blockchain network.

ADVANTAGE OF THE INVENTION According to this invention, the system which can perform a safe content transaction can be provided.

It is a figure which shows the structural example of the system by embodiment of this invention. It is a block diagram which shows the hardware constitutions of the management server of FIG. It is a block diagram which shows the hardware constitutions of the user terminal of FIG. It is a figure which shows the flow of a process of the system by this Embodiment. It is an image figure of the price table of the system by this Embodiment. It is an image figure of the transaction table of the system by this Embodiment.

The contents of the embodiment of the present invention will be listed and described. The content platform system according to the embodiment of the present invention has the following configuration.
[Item 1]
A content platform including an owner terminal that owns content, a user terminal that uses the content, and a content license server that is connected to each of the owner terminal and the user terminal via a network A system,
The owner terminal transmits content information including the content received from the owner and one or more conditions regarding use of the content to the content / license server,
The content license server provides the received content information to the user terminal so that it can be used,
The user terminal is a usage request received from a user and transmits a usage request that can be generated for each condition of the content to the content / license server,
The content / license server broadcasts and shares usage permission information including the content and the conditions related to the usage request and the user terminal to a blockchain network, and sends a usage permission notification to the user terminal. Send
The content platform system, wherein the user terminal that has received the use permission notification acquires or uses the content with reference to the use permission information broadcast to the blockchain network.
[Item 2]
The content platform system according to claim 1,
The content / license server sets a usage price of the content according to the usage request for each of the conditions of the content, and provides information related to the usage price to the user terminal in a usable manner .
[Item 3]
The content platform system according to claim 2,
The owner terminal transmits an initial price for each of the conditions of the content received from the owner to the content / license server,
The content platform system, wherein the content license server sets the usage price based on the initial price.
[Item 4]
The content platform system according to claim 1, wherein:
The content platform system, wherein the conditions include at least a usable period, a usable place, a usable terminal, and a usable number of users of the content.

<Details of the embodiment>
Hereinafter, a content platform system (hereinafter referred to as “system”) according to an embodiment of the present invention will be described with reference to the drawings.

<Overview>
The system according to the embodiment of the present invention, for example, includes copyrights and other rights (property rights, ownership rights, and any rights that can be traded by a rights sharing entity) in respective usage conditions (use period, use place, The platform system is capable of performing transactions according to users, terminals used, number of users, etc., and in particular, manages transaction history using a distributed ledger technology such as a blockchain network.

Further, according to the usage conditions, to prevent tampering of the user and transaction history by sharing put the right contents of the user (availability of specific content of a specific date and time) to block the chain network (broadcast) Is.

<Configuration>
As shown in FIG. 1, centering on a management server (content / license server) 1, a user terminal (owner terminal) 2a (terminal is not shown) and a user terminal (user terminal) 2b (terminal is shown in FIG. 1). (Not shown) is a so-called client-server model that is connected via a network (such as the Internet, including a block chain network) 3.

  In the present embodiment, at least the management server 1 and the user terminal 2a are connected to a ledger (block chain) managed jointly in the block chain network so that they can be accessed and referenced.

<Hardware configuration>
The management server 1 and the user terminal 2 according to the present embodiment have the following hardware configuration. The following configuration is an example, and other configurations may be used.

<Management server 1>
As shown in FIG. 2, the management server 1 constitutes a part of the system by executing information processing via communication with the user terminal 2a and the user terminal 2b. The management server 1 may be a general-purpose computer such as a workstation or a personal computer, or may be logically realized by cloud computing.

  The management server 1 includes at least a processor 10, a memory 11, a storage 12, a transmission / reception unit 13, an input / output unit 14, and the like, which are electrically connected to each other through a bus 15.

  The processor 10 is an arithmetic device that controls the operation of the entire management server 1 and performs control of data transmission / reception between elements and information processing necessary for executing an application. For example, the processor 10 is a CPU (Central Processing Unit), and executes each information process by executing a program stored in the storage 12 and expanded in the memory 11.

  The memory 11 includes a main memory composed of a volatile storage device such as a DRAM (Dynamic Random Access Memory) and an auxiliary memory composed of a non-volatile storage device such as a flash memory or an HDD (Hard Disc Drive). . The memory 11 is used as a work area of the processor 10 and stores a BIOS (Basic Input / Output System) executed when the management server 1 is started, various setting information, and the like.

  The storage 12 stores various programs such as an application program and an authentication program and a mining program for the block chain network. A database storing data used for each process may be constructed in the storage 22.

  The transmission / reception unit 13 connects the management server 1 to the network 3. The transmission / reception unit 13 may include a Bluetooth (registered trademark) and a BLE (Bluetooth Low Energy) short-range communication interface.

  The input / output unit 14 is an information input device such as a keyboard / mouse used as necessary, and an output device such as a display.

  The bus 15 is commonly connected to the above-described elements, and transmits, for example, an address signal, a data signal, and various control signals.

<User terminals 2a and 2b>
As shown in FIG. 3, (sometimes referred to the user terminal 2 these are collectively) user terminals 2a and 2b, by executing the information processing through a communication with the management server 1, the content platform system Part of it. The user terminal 2 may be a general-purpose computer such as a workstation or a personal computer, or may be a mobile communication device such as a smartphone. The user terminal 2a is a terminal of the content owner 20a, and the user terminal 2b is a terminal of the content user 20b.

  The user terminal 2 includes at least a processor 20, a memory 21, a storage 22, a transmission / reception unit 23, an input / output unit 24, and the like, which are electrically connected to each other through a bus 25.

  Similar to the management server 1 described above, the processor 20 is an arithmetic device that controls the operation of the entire user terminal 2, performs control of data transmission / reception between the elements, and performs information processing necessary for executing the application. For example, the processor 20 is a CPU (Central Processing Unit), and executes each program by executing a program or the like stored in the storage 22 and expanded in the memory 21.

  The memory 21 includes a main memory composed of a volatile storage device such as a DRAM (Dynamic Random Access Memory) and an auxiliary memory composed of a nonvolatile storage device such as a flash memory or an HDD (Hard Disc Drive). . The memory 21 is used as a work area of the processor 20 and stores BIOS (Basic Input / Output System) executed when the user terminal 2 is started up, various setting information, and the like.

  The storage 22 stores various programs such as an application program and an authentication program and a mining program for the block chain network. A database storing data used for each process may be constructed in the storage 22.

  The transmission / reception unit 23 connects the user terminal 2 to the network 3. The transmission / reception unit 23 may include a Bluetooth (registered trademark) and a BLE (Bluetooth Low Energy) short-range communication interface.

  The input / output unit 24 is an information input device such as a keyboard / mouse used as necessary, and an output device such as a display.

The bus 25 is commonly connected to the above-described elements, and transmits, for example, an address signal, a data signal, and various control signals.
<Operation>

  Next, the operation of each element will be described.

  The user terminal 2a transmits to the management server 1 content information including the detailed content of the content received from the content owner (such as the copyright holder) and the license conditions imposed on the user regarding the use of the content.

  The content information may have other elements. For example, the detailed information of the content may include author information accompanying the content, the history of the copyright owner, and other metadata. In addition, the license condition may include a usable period, a usable place, a usable terminal, a usable number of users, and a license price of the content.

  The management server 1 provides the content information received from the user terminal 2a to the plurality of user terminals 2b. In providing the information, for example, it may be displayed on a developed WEB site or a specific application so that it can be viewed.

  The user terminal 2b transmits the usage request received from the user to the management server 1. The usage request can be transmitted for each license condition of the content. For example, in the case of video, music, etc., if a period such as “1 day use”, “3 day use”, “1 week use”, “1 month use” is set as the license condition of the content, A usage request can be sent every time.

  The management server 1 broadcasts the usage permission information including the content and license conditions related to the usage request and the information for specifying the user terminal 2b to the block chain network and shares it with the terminals participating in the network. On the other hand, the management server 1 transmits a content use permission notification to the user terminal 2b. The usage permission notification includes content data itself, a URI (URL) that allows access to the content data, a password such as a download key, and the like.

The user terminal 2b that has received the use permission notification refers to the use permission information broadcast to the block chain network, receives the authentication that the user terminal 2b has the right to use according to the license conditions , and acquires the content. Or use it.

<Process flow>
With reference to FIG. 4, the process flow of the present system will be described.

The user terminal 2a transmits content information including detailed content information and license conditions to the management server 1 (SQ101). In the management server 1, the content information is stored and registered in its own storage (SQ103). The management server 1 shares content information with the user terminal 2b (SQ105). The user terminal 2b transmits a use request for each license condition for the desired content (SQ107). As a result, a transaction regarding the content is established (SQ109). In accordance with the transaction establishment process, transaction information (contents, license conditions, etc.) is shared with the blockchain network (SQ111). At the same time, the management server 1 transmits a permission notice regarding the use of content including information for acquiring content to the user terminal 2b (SQ113). Thus, the user terminal 2b obtains the content (SQ115), confirms that the user terminal 2b has the use authority by referring to the blockchain network (SQ113), and uses the content.

Regarding the use of the content, for example, information regarding the content acquisition destination is digitally signed using the secret key of the management server 1, a public key corresponding to the secret key is generated separately, and the public key is used as the user terminal. It is good also as transmitting to 2b. Further, the authentication is performed by collating the public key hash value of the content included in the Pubkey Script of the arbitrary first transaction with the public key body of the content included in the Signature Script of the second transaction. Specifically, a hash value of the public key body of the content included in the signature script of the second transaction is generated, and it is confirmed that the hash value of the public key hash of the content included in the pubkey script of the first transaction matches. Thus, it is possible to authenticate that the usage right of the content is present in the self.

(Other embodiments)
The system according to the above-described embodiment can be modified as follows, for example, as shown in FIG. That is, the user terminal 2a sets an initial price for each content license condition. The table in FIG. 5 is a table for managing an ID for specifying content, a content availability period, an initial price, and a current price.
Based on the initial price, the management server 1 sets / updates the usage price of the content in response to usage requests from the plurality of user terminals 2b. For example, as illustrated in FIG. 6, the content usage price is a floating market price that is determined by the amount of requests between a person who wants to provide the content (user 20a) and a person who wants to use the content (user 20b). ing.

  The above-described embodiments are merely examples for facilitating understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

1 management server 2 user terminal

Claims (4)

A content platform including an owner terminal that owns content, a user terminal that uses the content, and a content license server that is connected to each of the owner terminal and the user terminal via a network A system,
The owner terminal transmits content information including the content received from the owner and one or more conditions regarding use of the content to the content / license server,
The content license server provides the received content information to the user terminal so that it can be used,
The user terminal is a usage request received from a user and transmits a usage request that can be generated for each condition of the content to the content / license server,
The content / license server broadcasts and shares usage permission information including the content related to the usage request and the conditions and information for specifying the user terminal to a blockchain network, Sending a usage permission notification including information for acquiring the content related to the usage request ;
The user terminal that has received the usage permission notification acquires the content based on information for acquiring the content related to the usage request, and refers to the usage permission information broadcast to the block chain network. A content platform system that uses the content related to the usage request . The content platform system according to claim 1,
The content / license server sets a usage price of the content according to the usage request for each of the conditions of the content, and provides information related to the usage price to the user terminal in a usable manner . The content platform system according to claim 2,
The owner terminal transmits an initial price for each of the conditions of the content received from the owner to the content / license server,
The content platform system, wherein the content license server sets the usage price based on the initial price. The content platform system according to claim 1, wherein:
The content platform system, wherein the conditions include at least a usable period, a usable place, a usable terminal, and a usable number of users of the content.