JP2018173692A - Article information management apparatus, system, method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine the authenticity of an article and an owner without attaching or fixing information to the article itself.SOLUTION: An article information management apparatus 6 includes a registration unit 601 that receives an authentication image for each of an article of management target and a certificate thereof, which is an authentication image used for an identity determination process of a predetermined article authentication system for determining identity of the article that is a subject by using an image recognition technique, and owner information on an article owner, from a user, registers an article authentication image that is the authentication image of the article and a certificate authentication image in association with each other in a predetermined image database, and adds a transaction information block in which a transaction detail including at least a summary of the article authentication image, a summary of the certificate authentication image and owner information is recorded to a block chain to which a new block is added after undergoing processing according to a predetermined consensus algorithm in which two or more nodes participate.SELECTED DRAWING: Figure 15

Description

  The present invention relates to an article information management apparatus, an article information management system, an article information management method, and an article information management program for managing article information.

  In buying and selling antiques, it is necessary that an antique that is an article to be bought and sold is properly paired with a document that indicates its authenticity (hereinafter referred to as a certificate). However, cases in which a malicious person impersonates or loses a certificate and a genuine certificate is given to the counterfeit are prevalent. Many certificates that prove the authenticity of an article, such as a certificate attached to an antique, are not particularly formatted and are managed in paper. For such goods and certificates, some measures for preventing counterfeiting and tampering are taken, but they are not perfect. Also, since the certificate is a paper medium, it may be lost.

  In addition, since the certificate proves the authenticity of the article and not the owner, the person who is not the original owner may take the article and the certificate and be auctioned. .

  There is a technology for managing information regarding such articles that may be counterfeited. For example, in Patent Document 1, by fixing a unique data signature obtained by encrypting a unique identification number of a document that cannot be forged, such as an owner certificate, to an article and a certification certificate, A method of authentication is described.

  Further, in Patent Document 2, information I, and external first data Ks and second data Sid in consideration of secret data Si for each article are stored in an accessible memory of a portable electronic article. A method is described in which the originality of the information can be proved later by writing an image I ′ obtained by processing using an encryption program.

  Patent Documents 3 and 4 describe a method for determining the authenticity of an article by attaching or integrating a certification seal or an RF wireless tag that outputs genuine information to the article. .

  Non-Patent Documents 1 and 2 describe a technique using an object fingerprint as an example of a technique that enables individual identification.

JP-A-8-249510 JP 11-073482 A JP 2001-337603 A JP 2004-152126 A

Satoshi Ishiyama, et al., “Individual Identification by Object Fingerprint Authentication that Expands Utilization of IoT”, NEC Technical Report Vol. 69 No. 1, January 2016, p. 42-46 Satoshi Ishiyama, et al., “Individual product authentication by image verification of fine irregularities on painted surface”, Journal of Precision Engineering, vol. 82 no. 3, 2016, p. 251-258

  When the authenticity of an article is guaranteed by a paper medium certificate, there is a problem that an authenticity determination is required every time the owner changes. For example, if a certificate is not attached, it cannot be said that the certificate is authentic, and authenticity determination is required for each transaction. Even if a certificate is attached, the possibility that it is attached to a counterfeit or the possibility that an appraisal is forged cannot be denied. Such frequent authenticity determination often costs the original owner or purchaser.

  In addition, when false testimonies are published, there are problems such as damage to reputations for appraisers, loss of honor, and use of names for crimes without their knowledge.

  Therefore, it is conceivable to manage information that proves the authenticity of an article using a medium other than paper. However, any of the methods described in Patent Documents 1 to 3 must fix information or attach a tag to the article. There is a problem of not becoming. If the article itself is valuable, such as an antique, a method that can damage the article is not preferred. For example, the method of writing information or attaching a proof seal impairs the value of the article. Note that the method of attaching the RF wireless tag cannot be adopted because the RF wireless tag may be removed.

  Furthermore, when it is desired to prove not only the authenticity of an article but also the owner, the information must be updated at every transaction, and the above-described method of fixing information to the article itself cannot be applied.

  Therefore, the present invention provides an article information management apparatus, an article information management system, an article information management method, and an article information management program capable of determining the authenticity of an article and an owner without attaching or fixing information to the article itself. The purpose is to provide.

  An article information management apparatus according to the present invention is an authentication image used for identity determination processing of a predetermined article authentication system that determines the identity of an article that is a subject using image recognition technology from a user. Receiving the authentication image for each of the target article and the certificate that proves the authenticity of the article and the owner information about the owner of the article, and for the authentication of the article authentication image and the certificate that are the authentication images for the article In the block chain in which a new block is added through a process according to a predetermined consensus algorithm in which two or more nodes participate, while registering the certificate authentication image that is an image in association with a predetermined image database, A registration unit for adding a transaction information block in which transaction details including at least a summary of an article authentication image, a summary of a certificate authentication image, and owner information are recorded; And wherein the door.

  The article information management system according to the present invention uses a ledger management system that manages a block chain in which a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate, and an image recognition technology. Article information management comprising: an article authentication system that determines the identity of an article that is a subject; an image database that stores at least an authentication image used for the identity determination process of the article authentication system; and an article information management device The apparatus receives, from the user, an authentication image for each article to be managed and a certificate for the article and owner information regarding the owner of the article, and authenticates the article authentication image and the certificate that are the authentication images for the article. In addition to registering the certificate authentication image, which is a business image, in the image database, the product authentication image is stored in the blockchain. Characterized in that it comprises a registration unit transaction details comprising at least a summary and the summary of the certificate authentication image and owner information to add the recorded transaction information blocks.

  In the article information management method according to the present invention, the article information management apparatus is used for the identity determination process of a predetermined article authentication system in which the article information management apparatus determines the identity of an article as a subject using image recognition technology. An authentication image that is an authentication image of an article by receiving an authentication image for each of the management object and a certificate that proves the authenticity of the article and owner information about the owner of the article And a certificate authentication image, which is a certificate authentication image, are registered in a predetermined image database, and a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate. A transaction information block in which transaction details including at least a summary of the product authentication image, a summary of the certificate authentication image, and owner information are recorded in the block chain. Characterized in that it.

  An article information management program according to the present invention is an authentication image used for identity determination processing of a predetermined article authentication system that determines the identity of an article that is a subject using image recognition technology from a user. An authentication image and a certificate that are authentication images of an article by receiving an authentication image of each of the management object and a certificate proving the authenticity of the article and owner information regarding the owner of the article A block in which a new block is added through a process according to a predetermined consensus algorithm in which two or more nodes participate, while registering the certificate authentication image, which is an authentication image, in association with a predetermined image database A transaction information block in which transaction details including at least a summary of the product authentication image, a summary of the certificate authentication image, and owner information are recorded in the chain. Characterized in that to execute a process of pressing.

  According to the present invention, authenticity of an article and an owner can be determined without attaching or fixing information to the article itself.

It is a block diagram which shows the example of the article information management system of 1st Embodiment. 3 is a block diagram illustrating a configuration example of a ledger management node 21. FIG. It is explanatory drawing which shows the outline of the flow of the data in the case of goods transaction. It is explanatory drawing which shows the example of the data structure of the block which the article information management system 10 uses, and the example of the information memorize | stored in image DB3. It is explanatory drawing which shows the example of a user's flow before article | item information management system 10 introduction. It is explanatory drawing which shows the example of a user's flow after article | item information management system 10 introduction. 4 is a sequence showing an example of a registration operation of the article information management system 10. 3 is a sequence showing an example of a search operation of the article information management system 10. It is a sequence which shows an example of collation operation of article information management system 10. 5 is a sequence showing an example of an update operation of the article information management system 10. 1 is a configuration diagram illustrating an example of a system configuration of an article management system 10. FIG. It is explanatory drawing which shows an example of the protection method of personal information. It is explanatory drawing which shows an example of the protection method of personal information. It is a block diagram which shows the structural example of the computer concerning embodiment of this invention. It is a block diagram which shows the outline | summary of the article information management system of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the technical concept of the present invention will be described. The present invention manages (holds and collates) the ownership and information of the article that is the property of the article that may be forged such as an antique using blockchain and image authentication technology. ) This makes it easier to prove that the property is the same as the article holding the information in the system and who has ownership.

  Here, the block chain is a time series of data groups having a predetermined data structure called a block, and has a role as a ledger describing transaction contents. Each block contains information on one or more previous blocks (hereinafter referred to as the previous block) and information for detecting the presence or absence of tampering (nonce, signature, etc.) in addition to the data to be recorded in the block, such as transaction details Including. A nonce is a value in a data area that is set so that a value obtained when data in that area is processed by a one-way function satisfies a predetermined rule. . A new block is added to the block chain through processing according to a predetermined consensus algorithm in which two or more nodes participate. For example, in PoW (Proof of Work) which is one of the consensus algorithms, for each block (data group) including information and nonce of the previous block, “the hash value of the block is equal to or less than a threshold value (target value). Rules are determined in advance, and when adding a block, a process is performed in which a plurality of nodes simultaneously search for nonces that satisfy such rules. In addition to PoW, there is a consensus algorithm such as BFT (Byzantine fault tolerance).

  The article authentication is not particularly limited as long as it is a technique that can determine the identity of an article (individual) based on image data. As an example, based on image data obtained by photographing an object using a proof method called FIBAR (Fingerprint Imaging by Binary Angular reflection), a fine pattern on the surface of the object is used as an object fingerprint, There is an object fingerprint authentication technique for determining identity, that is, performing individual recognition.

  Note that FIBAR is an illumination method that can shoot by emphasizing the local inclination of the object surface as a shadow. FIBAR can be realized by using a special mechanism having a white surface and a black surface near the close-up lens as described in Non-Patent Document 1, for example. In addition to using such a mechanism, for example, the method described in Non-Patent Document 2, that is, the method of using an LED line illumination and illuminating light parallel to the surface to capture an image caused by fine unevenness. As “object fingerprint”. The LED has high brightness and high linearity, and can generate a shadow with high contrast that can be recognized stably and stably with normal indoor environment light.

  The image obtained by photographing the object fingerprint in this way is collated using, for example, an image matching method using local feature amounts and an algorithm for verifying the consistency of the geometric arrangement of feature points. If such object fingerprint authentication technology using FIBAR is used, for example, a device described in Non-Patent Document 1 may be mounted on a mobile phone with a camera, or a non-patent without using a special camera. Since image data that can identify an article at an individual level can be obtained simply by applying the LED line illumination described in Document 2, it is practical. In addition to these, the method of article authentication includes a method of performing individual authentication based on X-rays or infrared image data.

Information management is performed as follows, for example.
(1) The image data of the authentic product with a large capacity and the authentic certificate is stored in an external database, and information on the owner (hereinafter referred to as owner information) is stored in the blockchain as a transaction statement. ) And a summary of the authentication images.
(2) Information that associates the external database with the block chain is registered in both.

  Regarding (1) above, as a summary, for example, a value (for example, Hash value) obtained when the original data is processed by a one-way function may be used. By using such a summary, not only the information registered in the block chain but also the image data registered in the external database is prevented from being altered while reducing the amount of data managed by the block chain.

  In addition, regarding (2) above, block-based information (Hash value or the like) may be used as information for associating the two. For example, the block stores information (Hash value) based on the block storing the transaction immediately before the target article together with the transaction details. Note that at the time of initial registration, the item may be empty (Null). On the other hand, information based on the block storing the latest transaction is registered in the external database together with the image data of the authentication image. Hereinafter, an area for storing information based on a block may be referred to as a block management area.

  Each time the transaction details are updated, a block having new owner information is added to the block chain, and the block management area of the record of the article in the external database is updated. As a result, the transfer history of ownership can be acquired by going back the block chain based on the latest transaction information obtained from the search result of the external database.

[Embodiment 1]
FIG. 1 is a block diagram illustrating an example of an article information management system according to the present embodiment. As shown in FIG. 1, the article information management system 10 includes an article information management apparatus 1, a ledger management system 2, an image database (DB) 3, and an article authentication system 4. These are connected via the network 5.

  Note that the ledger management system 2, the image DB 3, and the article authentication system 4 may be connected to at least the article information management apparatus 1 so as to be communicable. The same applies to a user terminal (not shown). The network 5 may include a plurality of different networks such as the Internet and an Ethereum network.

  The ledger management system 2 is a system in which a block chain is a ledger, and the ledger is shared and managed by a plurality of nodes. In addition, although the ledger management system is illustrated as a system for managing the block chain, a ledger that can execute processing according to a predetermined consensus algorithm (hereinafter referred to as consensus processing) and is difficult to tamper with is shared by terminals in the system If it is a system, it is not limited to a ledger management system.

  The ledger management node 21 is a node that executes consensus processing in the ledger management system 2. Each of the ledger management nodes 21 holds a copy of the block chain 22 through execution of the consensus process.

  The image DB 3 stores at least image data among information related to articles to be managed. The image DB 3 is, for example, the authentication image used for the above-described article authentication and the image data of the authentication image obtained by photographing the article, and the authentication image and the certificate of the paper medium is photographed or digitized. If it is a certificate, the image data of the authentication image obtained by imaging the electronic data is stored in association with each other. The image DB 3 may store information that can specify a block related to the image data in the block chain together with the image data. Further, the image DB 3 may store other information (search keyword information, identifier, etc.) related to the article storing the image data so that the user can search for image data related to the desired article. The keyword information for search is not particularly limited, but includes the feature of the article, the author, the place of production, the age, and the like.

  The article information management apparatus 1 provides a user with an interface for managing information related to articles as described above. Further, the article information management device 1 executes various controls such as registration, search, collation, and update of information on articles to be managed in accordance with a request from the user. As shown in FIG. 1, the article information management apparatus 1 may include a registration unit 101, a search unit 102, a collation unit 103, and an update unit 104.

  The registration unit 101 appropriately registers information about articles to be managed in the block chain 22 and the image DB 3 in response to a request from the user. As described above, the registration unit 101 associates the image data of the authentication image of the article with the image data of the authentication image of the certificate and registers the image data in the image DB 3 as information related to one article. Are added to the block chain 22 via the ledger management node 21, including a transaction detail including a summary (for example, Hash value) and owner information. The registration unit 101 may perform predetermined addition processing such as making a request for adding a block including transaction details to the ledger management node 21.

  The search unit 102 searches for and provides information on articles from the block chain 22 and the image DB 3 in response to a request from the user. At this time, the search part 102 may restrict | limit the information disclosure range for every system user, when personal information (owner information etc.) is contained in the information regarding articles | goods. At this time, the search unit 102 can also select and use a method for controlling the information disclosure range according to the form of the block chain and the system requirements.

  In response to a request from the user, the collation unit 103 collates the information for collation designated by the user with the information on the article recorded in the block chain 22 and the image DB 3 to verify the authenticity of the information for collation. Alternatively, the identity of the object is determined.

  The update unit 104 updates information related to the article being managed in response to a request from the user. The update unit 104 transfers a block in which owner information indicating a new owner is recorded to the block chain 22 via the ledger management node 21 as information related to the article, at least with the transfer of ownership of the article to be managed. to add. The updating unit 104 may perform predetermined addition processing such as requesting the ledger management node 21 to add a block including owner information indicating a new owner.

  The article authentication system 4 is a system that determines identity of an object based on image data of an image obtained by photographing the object, that is, performs individual identification. In the following, an object fingerprint authentication system using FIBAR is exemplified as the article authentication system 4, but the article authentication system 4 is not limited to an object fingerprint authentication system using FIBAR.

  FIG. 2 is a block diagram illustrating a configuration example of the ledger management node 21. The ledger management node 21 illustrated in FIG. 2 includes a registration information reception unit 211, a block generation unit 212, a block sharing unit 213, an information storage unit 214, a block verification unit 215, and a registration information output unit 216.

  The registration information receiving unit 211 receives information recorded in a ledger that is a block chain managed by the ledger management system 2 from an external node. In the present embodiment, the registration information receiving unit 211 receives transaction details including a summary of authentic products and authentication images of authentic certificates and owner information as information to be recorded in the ledger.

  The block generation unit 212 generates a block to be added to the block chain based on the information (transaction details) received by the registration information reception unit 211. The block generation unit 212 generates a block including information based on the previous block and the information received by the registration information reception unit 211. In addition, the block generation unit 212 searches, for example, a nonce as a predetermined consensus process for a block generated by itself or a block generated by another ledger management node 21 via a block sharing unit 213 described later. And a process of giving a signature, a block is added to a block chain managed by itself (corresponding to a copy of the block chain 22). In addition, what was obtained by a plurality of ledger management nodes 21 performing a predetermined consensus process on the block generated by the block generation unit 212 is finally added to the block chain 22.

  The block sharing unit 213 exchanges information between the ledger management nodes 21 belonging to the ledger management system 2. More specifically, the block sharing unit 213 appropriately stores information received by the registration information receiving unit 211, blocks generated by the block generation unit 212, blocks received from other ledger management nodes 21, and the like as appropriate. Transmit to the management node 21. As a result, all the ledger management nodes 21 share this information and the latest block chain 22 as much as possible.

  The information storage unit 214 stores a copy of the block chain 22. In addition to the copy of the block chain 22, the information storage unit 214 may store, for example, information necessary for verification processing in the block verification unit 215 described later.

  The block verification unit 215 verifies information in the block when adding the block to the block chain held by the block verification unit 215. Normally, the block to be added is the block that the rule is satisfied first in the ledger management node 21 group including its own node, but considering the case where the malicious ledger management node 21 is included, etc. It may be verified whether the rules are actually satisfied.

  The registration information output unit 216 outputs block chain information held by itself in response to a request from an external node.

  The configuration of FIG. 2 is merely an example, and the ledger management node 21 can execute a predetermined consensus process for sharing and managing the block chain 22 that is difficult to tamper with. As long as the node can add information to the ledger and refer to the ledger in response to a request from the user, the specific configuration is not limited.

  In FIG. 1, the article information management apparatus 1 and the ledger management node 21 are shown as separate ones, but the article information management apparatus 1 may have the function of the ledger management node 21.

  FIG. 3 is an explanatory diagram showing an outline of the data flow in the article transaction. Although FIG. 3 shows an antique as an article to be managed and an appraisal as a certificate, the article and the certificate are not limited to an antique and an appraisal. Further, although an example in which FIBAR is used as a method for capturing authentication images for articles and certificates is shown, the method for acquiring image data is not limited to the method using FIBAR.

  In the following, as shown in FIG. 3, an image group including an image for authentication obtained by photographing an article and including a feature amount (such as a shadow caused by fine unevenness on the surface) that can identify the article individually, It may be described as an authentication image A. In addition, an authentication image obtained by photographing or imaging a certificate, and an image group including a feature quantity that allows individual identification of the certificate may be referred to as an authentication image B. The owner information may be referred to as owner information C. In addition, symbols A, B, and C may be used to indicate the types of information. One or more authentication images A and authentication images B may be provided. Further, in the case where a tag or a seal in which authentication information is recorded is attached to the certificate, the authentication information may be acquired together with the authentication image B. In that case, the acquired authentication information is stored in the image DB 3 together with the authentication image B.

  The authentication image A and the authentication image B are taken as a set when the authenticity of the antique is verified by appraisal or the like, and is photographed by a user such as an individual possessing the antique or a trader. The information is supplied to the information management system 10. In addition, the owner information C is stored in the article information management system 10 together with information for proving that the ownership is transferred by the current owner, a purchaser at the time of transaction, or a user such as a broker who has intervened. Supplied.

  The article information management system 10 registers the authentication images A and B thus obtained in the image DB 3, and also summarizes the authentication images A and B (Hash A and Hash B in the figure) and the owner. The information C is collectively added to the block chain as a new block. This makes it difficult to falsify not only the information registered in the block chain but also the information registered in the image DB 3, guaranteeing the combination of “certificate and article” and the identity of each object (individual), Guarantees the legitimacy of transaction history including information about the owner.

  As already described, each block is connected in time series and holds a value based on the previous block. For example, the block n holds a block Hash n−1 that is the Hash value of the block n−1. Similarly, the block n + 1 holds the block Hash n that is the Hash value of the block n. Therefore, in order to tamper with the contents of the block, it is necessary to recreate all subsequent blocks, and due to the nature of the block chain, it is difficult to tamper with the data in the block chain.

  For example, as shown in FIG. 3, it is assumed that when the block n-1 is the latest block, a request for registration or update of information related to the item X is made, for example, by appraisal of the item X or transfer of ownership. In this case, the block chain 22 includes, as the next block, Hash A that is the Hash value of the authentication image A of the article X, Hash B that is the Hash value of the authentication image B of the certificate of the article X, and the current block Block n including owner information C is added. Then, in response to the addition of the block n to the block chain 22, the block Hash n, which is the hash value of the block n, is associated with the authentication image A and the authentication image B as information relating to the article X, and the image DB3. Remember me.

  In this way, the article information management system 10 calculates a summary (Hash value, etc.) from each of the articles to be managed and the authentication image of the certificate, adds them together into one block, and adds them to the block chain. In addition, the information based on the added block and the authentication image are registered together in the image DB 3.

  FIG. 4 is an explanatory diagram showing an example of the data structure of the block and an example of information stored in the image DB 3. Each block used by the article information management system 10 may include a header D21 and a transaction detail D22. The header D21 includes previous block management information D211. Transaction details D22 includes article image management information D221, certificate image management information D222, owner information D223, transaction history management information D224, and detailed information D225, for example.

  The previous block management information D211 is information based on the previous block and may be information that can be detected when the data of the previous block is falsified. Examples of the previous block management information D211 include the hash value of the previous block.

  The article image management information D221 is a summary of the authentication image (authentication image A) of the article to be managed, and is information that can be detected when the image data of the authentication image is falsified. I just need it. An example of such a summary is the Hash value of each image data. When there are a plurality of authentication images A, the article image management information D221 may include each summary or a binary data summary obtained by combining the images.

  The certificate image management information D222 is a summary of the authentication image (authentication image B) of the certificate of the article to be managed, and can detect when the image data of the authentication image is falsified. Such information may be used. When there are a plurality of authentication images B, the certificate image management information D222 may include each summary or a summary of binary data obtained by combining the images.

  The owner information D223 is owner information of an article that is a management target.

  The transaction history management information D224 is information relating to the transaction history of an article to be managed. The transaction history management information D224 is information for tracing the transaction history of an article to be managed, and is information (hash value or the like) based on a block storing a transaction immediately before the article. In addition, when the information (for example, all the information based on the block which stored the transaction of the said goods) is hold | maintained on the image DB3 side, the goods can be identified in the transaction details recorded in each block When an identifier or the like is included, the transaction history management information D224 may be omitted.

  The detailed information D225 is information related to an article to be managed or its transaction other than D221 to D224. The detailed information D225 may be, for example, any or all of the information such as the appraiser who created the certificate, the appraisal amount of the article, the transaction amount, and the information on the handling antiques. Detailed information D225 may be omitted.

  Note that each block may not include the owner information D223 if the identity of each object is guaranteed at least for the combination of the certificate and the article.

  As illustrated in FIG. 4, the image DB 3 includes, for example, one or more article image data D31, one or more certificate image data D32, and one or more pieces of information related to articles to be managed. The block management information D33 and one or more search keyword information D34 may be stored.

  The article image data D31 is image data of an authentication image (authentication image A) of an article to be managed.

  The certificate image data D32 is image data of an authentication image (authentication image B) of a certificate of an article to be managed. When there is authentication information other than the authentication image B, the authentication information is stored together with the certificate image data D32. In this case, the certificate image management information D222 of the block includes a summary of the authentication information in addition to the summary of the certificate image data D32.

  The block management information D33 is not particularly limited as long as it is information that can identify a block in which at least the latest transaction details of the article are recorded. As an example of the block management information D33, information (Hash value or the like) based on a block in which the latest transaction details of the article are recorded. In that case, the article information management device 1 identifies the block in which the latest transaction details of the article are recorded from the block chain based on the information based on the block in which the latest transaction details are recorded. Based on the transaction history management information D224 included, a block in which past transaction details are recorded may be traced in order. In addition, as block management information D33, image DB3 may memorize | store the information (Hash value etc.) based on each block about all the blocks which recorded the transaction details of the said goods.

  The search keyword information D34 is search information for the user to search for information related to articles stored in the image DB 3 and the block chain 22. The search keyword information D34 is, for example, information on the characteristics (color, shape, type, manufacturing method, etc.) of the article to be managed, information on the author and production area, and the like. Note that the search keyword information D34 does not necessarily have to be in word format.

  Next, an example of the flow of each transaction stage of the user before and after the introduction of the article information management system 10 will be described using FIG. 5 and FIG. 5 is an example of a user flow before the introduction of the article information management system 10, and FIG. 6 is an example of a user flow after the introduction of the article information management system 10.

  First, with reference to FIG. 5, the flow of the user in each transaction stage before the article information management system 10 is introduced will be described. FIG. 5A is a flow example of a phase in which the owner of an article requests appraisal from an antique dealer. In the example shown in FIG. 5 (a), the owner who desires appraisal brings an article to be appraised to an antique dealer and requests appraisal. The secondhand merchants appraise the items brought in by themselves or an appraiser and issue an appraisal. As a result, the owner possesses a set of the article and the certificate.

  FIG. 5B is a flow example of a phase in which the owner of the article sells the article. In the example shown in FIG. 5 (b), the owner who wants to sell brings the article and the certificate to the secondhand merchant and makes a purchase request. The secondhand merchant makes an appraisal of the goods and the appraisal that have been brought in to him or his appraiser, and determines whether or not to purchase based on the result. When the transfer of ownership is established, the secondhand merchant possesses the set of the article and the certificate.

  FIG. 5C shows a flow example of a phase in which a person who is not the owner of the article (purchase applicant) searches for and purchases the desired article. In the example shown in FIG. 5C, first, the owner of the article posts information on the article on the Internet, a store, an antique city, or the like. The purchase applicant searches the above information and makes an authenticity judgment. As a result, when the purchase is decided, a purchase request is made to the secondhand merchant, and when the ownership transfer is established, the purchaser possesses the set of the article and the certificate.

  Next, with reference to FIG. 6, the flow of the user in each transaction stage after the article information management system 10 is introduced will be described. The processing content of the article information management system 10 at each transaction stage will be described later.

  FIG. 6A is a flow example of a phase in which the owner of an article requests appraisal from an antique dealer. In the example shown in FIG. 6A, the owner who wants to appraise brings an article to be appraised to a secondhand dealer and requests appraisal. The secondhand merchants appraise the items brought in by themselves or an appraiser and issue an appraisal. As a result, the owner possesses a set of the article and the certificate. At this time, if the article information management system 10 is introduced, a person who has proved the authentic work such as a secondhand merchant or an appraiser takes a picture of the article and its appraisal, and the obtained images are used for the authentication image A. And B are registered in the article information management system 10 together with the owner information C. Thereby, these pieces of information are registered in the block chain 22 and the image DB 3 with the data structure as described above. At the time of new registration, it is desirable to ensure the reliability of the registered information by requesting the user information to be registered and performing predetermined authentication in the article information management system 10.

  FIG. 6B is a flow example of a phase in which the owner of the article sells the article. In the example shown in FIG. 6B, the owner who wants to sell brings the article and the certificate to the secondhand merchant and makes a purchase request. The secondhand merchant makes an appraisal by requesting himself or an appraiser for the goods and appraisals brought in. At this time, the secondhand merchant can collate with the information registered in the article information management system 10 instead of performing the appraisal or after performing the appraisal. For example, the secondhand merchant confirms (searches) whether or not information related to the article is registered in the article information management system 10, and then an image and owner information obtained by photographing the brought-in thing, and the article information management system 10. May be requested to collate with the image and the owner information registered, and based on the collation result, the brought-in items and the authenticity of the owner may be determined. And based on those results, the presence or absence of purchase is determined.

  When the transfer of ownership is established, the secondhand merchant possesses the set of the article and the certificate. At this time, the secondhand dealer or the previous owner who becomes the new owner can register the transaction history in the article information management system 10. For example, the secondhand merchant who becomes the new owner may request the article information management system 10 to register new owner information together with information such as an identifier that can identify the item. In addition, when requesting registration of new owner information, if there is information about the newly acquired article (the latest fine image of the article, information on a new certificate, etc.) It may be registered in the information management system 10. As a result, a block in which transaction details including new owner information are recorded in the block chain 22 is added, and block management information that can identify the block as information indicating the latest transaction in the image DB 3, other new information Information is registered.

  FIG. 6C shows a flow example of a phase in which a person who is not the owner of an article (a purchase applicant) searches for a desired article. In the example shown in FIG. 6C, first, the owner of an article posts information on the article on the Internet, a store, an antique city, or the like. The purchase applicant searches the above information. At this time, the purchase applicant can collate the information obtained by the search with the information registered in the article information management system 10. For example, the purchase applicant confirms (searches) whether or not information related to the product is registered in the product information management system 10, and then the image and owner information of the product obtained by the search and the product information management. The image registered in the system 10 and the owner information may be requested to collate, and the authenticity of the object and the owner may be determined based on the collation result.

  Even if the owner of the article does not post information on the Internet or the like, the purchase applicant can search for information on the image DB 3 and the block chain 22 of the article information management system 10 to obtain the desired information, for example. It is also possible to obtain information about the article. In that case, the owner's information can be obtained based on the information obtained from the article information management system 10.

  FIG. 6D is a flow example of a phase in which a purchase applicant purchases a desired article. In the example shown in FIG. 6D, it is assumed that the purchase applicant decides to purchase based on the verification result of the article information management system 10 in FIG. The purchase applicant makes a purchase request to the current owner (in this example, an antique dealer) based on the information obtained by the above search or verification. When the transfer of ownership is established, the purchase applicant becomes the owner, and possesses a set of the article and the certificate. At this time, the new owner or secondhand merchant can register the transaction history in the article information management system 10 as in FIG. As a result, a block in which transaction details including new owner information are recorded in the block chain 22 is added, and block management information that can identify the block as information indicating the latest transaction in the image DB 3, other new information Information is registered.

  Next, the operation of the article information management system 10 will be described. 7 to 10 are sequence diagrams illustrating an example of the operation of the article information management system 10. In each figure, a registration function, a search function, a collation function, and an update function respectively represent a registration unit 101, a search unit 102, a collation unit 103, and an update unit 104 of the article information management apparatus 1. Moreover, the user in a figure represents the user terminal which each user operates.

  First, a registration operation in the article information management system 10 will be described with reference to FIG. The user in the operation is assumed to be an article owner or a trader who proves the authenticity of the article. In the example shown in FIG. 7, first, a user images an article image (authentication image A) and a certificate image (authentication image B) obtained by photographing an article and a certificate that are certified as authentic as a result of appraisal. And registration information including the owner information C is transmitted to the registration unit 101 of the article information management apparatus 1 (step S101). For example, the user first transmits a registration request for requesting new registration of article information to the article information management apparatus 1 via a Web page provided by the article information management apparatus 1, and according to the information input request received as the reply. Registration information may be entered.

  The registration unit 101 that has received the registration information calculates Hash A and Hash B based on the received information (Steps S102 and S103). And the registration part 101 produces the content (description of transaction) registered into a block chain (step S104). In step S104, the registration unit 101 creates a transaction statement including at least Hash A and Hash B obtained by calculation and owner information C. Then, a ledger addition request including the created transaction details is transmitted to one of the ledger management nodes 21 of the ledger management system 2 (step S105).

  The ledger management node 21 that has received the ledger addition request generates a block including at least the previous transaction management information created based on the received transaction details and information on the ledger (block chain) managed by the ledger management node 21 ( Step S106). Each of the ledger management nodes 21 of the ledger management system 2 executes a predetermined consensus process and adds the generated block to the ledger (step S107). In addition, the ledger management node 21 that has received the ledger addition request receives the fact that the block in which the requested transaction details are recorded has been added normally, and the block Hash of the added block is registered as the request source registration unit 101. (Step S108).

  Upon receiving the block Hash of the added block, the registration unit 101 uses the block Hahs as block management information, associates the block management information, the authentication image A, and the authentication image B with each other in the image DB 3. Recording is performed (step S109). Specifically, the registration unit 101 transmits a DB registration request including a block Hash as block management information, an authentication image A, and an authentication image B to the image DB 3. The image DB 3 creates a new record in which information included in the received DB registration request is recorded, and stores it in the storage medium (step S110). The registration unit 101 may add, to the DB registration request, an identifier of an article assigned by the article management information system as an identifier for identifying a newly stored record. In that case, the image DB 3 stores the record in association with the added identifier.

  When the registration unit 101 receives notification from the image DB 3 that registration has been completed (step S111), the registration unit 101 notifies the registration information transmission source user of the completion of registration and ends the processing (step S112).

  Next, a search operation in the article information management system 10 will be described with reference to FIG. A user in the operation is assumed to be an article owner, a trader who proves the authenticity of the article, or a purchase applicant. In the example illustrated in FIG. 8, first, the user transmits a search request including a search keyword indicating the characteristics of a desired article to the search unit 102 of the article information management apparatus 1 (step S201). For example, the user may transmit a search request to the search unit 102 of the article information management apparatus 1 via a Web page provided by the article information management apparatus 1.

  The search unit 102 that has received the search request accesses the image DB 3 based on the received information and searches for information stored in the image DB 3. Specifically, the search unit 102 transmits a DB search request including a search keyword to the image DB 3 (step S202). The image DB 3 searches the data recorded on the recording medium based on the information included in the DB search request (step S203).

  In this example, information corresponding to the article that matches the search keyword is registered in the image DB 3, and the record is returned from the image DB 3 to the search unit 102 (step S204).

  The search unit 102 transmits the record received from the image DB 3 as a search result to the requesting user (step S205).

  The user who has received the record of the article matching the search keyword refers to the record and requests data of a block in which the transaction details of the article are recorded as necessary (step S206). In step S <b> 206, the user transmits a detail request including information that can specify the block to the search unit 102. The information that can specify the block in the transaction request may be, for example, the Hash value of the block, or an identifier of a record that includes the Hash value of the block recorded in the image DB 3.

  When receiving the detail request from the user, the search unit 102 transfers the received detail request to one of the ledger management nodes 21 of the ledger management system 2 (step S207). At this time, if the information that can identify the block is a record identifier of the image DB 3 or the like, it is converted into information that can be processed by the ledger management node 21 such as a hash value of the block.

  The ledger management node 21 that has received the detail request searches for a corresponding block from the ledger (block chain) managed by the ledger management node 21 and returns it (steps S208 and S209).

  The search unit 102 that has received the block verifies the received block and then transmits the block to the requesting user (steps S210 and S211). In step S210, the search unit 102 reads, for example, the article image management information D221 and the certificate image management information D223 from the received transaction details D22 of the block, and the corresponding article image data D31 and certificate in the image DB3. It may be verified whether each summary calculated from the image data D32 matches. At this time, if there is even one piece of image data whose summaries do not match, the search unit 102 may notify the requesting user that the image DB 3 or the transaction details D22 is suspected of being falsified.

  In addition, for example, when the transaction details D22 of the received block includes personal information that is not permitted to be disclosed to the requesting user, the search unit 102 transmits information excluding the personal information. May be. The information disclosure range for the detailed record of each block may be specified by the registration source user when registering the transaction details, for example.

  Next, referring to FIG. 9, the collation operation in the article information management system 10 will be described. A user in the operation is assumed to be an article owner, a trader who proves the authenticity of the article, or a purchase applicant.

  In the example shown in FIG. 9, the user performs the above-described search operation and the like, and at least information (such as a record identifier in the image DB 3) that can identify the article in the article information management system 10 is acquired for the article to be verified. It is assumed that.

  In this example, first, the user transmits a collation request including information that can identify an article to be collated and information (article image and certificate image) that the user wants to collate to the collation unit 103 of the article information management apparatus 1. (Step S301).

  The collation unit 103 that has received the collation request accesses the image DB 3 based on information that can identify an article included in the collation request, and acquires information to be collated. Specifically, the collation unit 103 transmits a DB search request including information that can specify an article to the image DB 3 (step S302). In accordance with the DB search request, the image DB 3 searches for a record and returns a corresponding record (steps S303 and S304).

  When the matching unit 103 receives the corresponding record from the image DB 3, the collation unit 103 refers to the record and sends a detail request including information that can specify a block in which the transaction detail of the article is recorded to any one of the ledger management system 2. To the ledger management node 21 (step S305).

  The ledger management node 21 that has received the detail request searches for a corresponding block from the ledger (block chain) managed by the ledger management node 21 and sends it back (steps S306 and S307).

  The collation unit 103 that has received the corresponding block verifies the received block (step S308).

  The verification unit 103 confirms that there is no image data whose summaries do not match as a result of verification, and then sends information (article image and certificate image) to be verified included in the verification request to the item authentication system 4 and verification. An authentication request including information specifying the previous information is transmitted (step S309). The information specifying the collation destination information may be an address of an image group as a collation destination in the image DB 3 or a record identifier. The verification unit 103 may transmit the authentication request separately for the article and the certificate, or may further transmit the authentication request for each image.

  Upon receiving the authentication request, the article authentication system 4 acquires image data of the collation destination from the image DB 3 based on information included in the authentication request, performs object fingerprint authentication, and returns an authentication result (steps S310 and S311). ).

  The collation unit 103 that has received the authentication result collects them as necessary, and transmits them to the requesting user as a collation result (step S312). At this time, the collation unit 103 may transmit the record and block information received in step S304 and step S307 together with the collation result.

  Next, the update operation in the article information management system 10 will be described with reference to FIG. The user in the operation is assumed to be an article purchaser or a trader who proves the authenticity of the article. Further, this example is an example in which information is updated along with the ownership transfer.

  In the example shown in FIG. 10, first, a transaction information update request including information for specifying a product by the user and user authentication information for proving that the requesting user is a valid requester is sent to the product information management apparatus 1. To the update unit 104 (step S401). Examples of the user authentication information include a pair of the latest article image and certificate image obtained by photographing a genuine article and a certificate, the private key of the owner before movement, and the like. When the owner's private key before movement is used, the article information management system 10 may generate and notify the owner's private key every time the owner information is registered in the system.

  When receiving the transaction details update request, the update unit 104 performs the matching operation shown in FIG. Specifically, a verification request is transmitted to the verification unit 103 and a verification result is received (steps S403 to S404). In addition, after performing a search operation as necessary, a collation operation is performed. Moreover, the update part 104 may authenticate an owner instead of collation operation | movement. When it is proved that the user is an authorized user of the article to be updated, the updating unit 104 requests the user to input new owner information (step S405).

  The user inputs new owner information in response to the request (step S406). At this time, transaction information in which the transfer of ownership occurred, the latest article image, or certificate image may be input together.

  The update unit 104 receives input of new owner information and the like from the user, and creates contents (transaction details) to be registered in the block chain based on the input information (step S407).

  At this time, when a new authentication image A or authentication image B is input, the update unit 104 calculates a hash value of the newly added image data and then creates a transaction statement including them. To do. Further, the transaction details may include a block Hash of the block as information specifying the block in which the owner information of the previous generation is stored, that is, the previous transaction content is recorded. If no new article image and certificate image are input, the transaction details may not include the hash values of the article image and certificate image. In addition, when the Hash value of an article image and a certificate image is necessary, it may be acquired from the past transaction details of the article that is the object of the transaction by going back the block chain. Then, a ledger addition request including the created transaction details is transmitted to any ledger management node 21 of the ledger management system 2 (step S408).

  The ledger management node 21 that has received the ledger addition request performs the same processing as steps S105 to S107 in the registration operation shown in FIG. 7 (steps S409 to S411).

  When receiving the block Hash of the block added from the ledger management node 21, the updating unit 104 updates the block management information of the target article stored in the image DB 3. Specifically, the update unit 104 transmits a DB update request including the updated block management information to the image DB 3 together with information that can identify the article (step S412). Based on the received DB update request, the image DB 3 updates the block management information included in the specified article record (step S413).

  When receiving the update completion from the image DB 3 (step S414), the update unit 104 notifies the request source user of the completion of the update and ends the process (step S415). The notification of update completion may include a block added by update, a record of the updated image DB 3, and the like.

As described above, according to the present embodiment, the article image and the certificate image data are registered in the image DB 3 in association with each other, and the summary of the image data and the owner information are combined into one block. Manage on the chain. For this reason, the information can be managed without being falsified based on the characteristics of the block chain. In particular, by registering the hash value of the article image and the certificate image in one block, it is possible to detect even if the image data has been tampered with, making it difficult to tamper with even large-capacity image data. Can be secured. Further, by including the owner information in the block, the association between the ownership and the property can be guaranteed.

  Further, according to the present embodiment, since the image authentication technology is used for the authentication of the article and the certificate, it is possible to prove the identity of the article and the certificate even if it is not an experienced expert. In particular, if the object fingerprint authentication technology is used, it is possible to easily prove that the property is the same as that at the time of blockchain registration without using a special device.

  When the article information management system of this embodiment is not used, in order to prove that the property is genuine, an appraiser or the like is required each time. However, if this system is used, it is possible to determine the identity even in the absence of an appraiser by registering the image of the article and the image of the appraisal document that are initially appraised by the appraiser. Therefore, according to the present embodiment, it is possible to guarantee that the owner, the article, the certificate, etc. are genuine in the case of a transaction, etc., so that illegal trading can be prevented in advance. Is possible.

  Further, according to the present embodiment, since the purchase history remains reliably, it can also be used as an information source when reporting income taxes.

  FIG. 11 is a configuration diagram illustrating an example of a system configuration of the article management system 10 according to the present embodiment. The article information management system 10 shown in FIG. 11 includes a WEB server 1a as the article information management apparatus 1, an object fingerprint authentication system 4a as the article authentication system 4, a database 3a as the image DB 3, and a ledger management node 21. And a plurality of Geth clients 21a. In the example shown in FIG. 11, a user terminal serving as a system user and the WEB server 1a are connected via the Internet. The WEB server 1a is connected to the object fingerprint authentication system 4a and the database 3a through a dedicated network. The WEB server 1a is connected via an Ethereum network to which each Geth client operating as the management node 21 of the ledger management system 2 is connected and an HTTPS communication network.

  Here, the Ethereum network is a network that provides Ethereum, which is a platform developed with the aim of realizing smart contracts. In the Ethereum network, a “contract” is defined as a collection of data and programs. A participant in the Ethereum network broadcasts a request for a contract to all nodes. The node that receives the request performs an operation based on the request and adds the result to the block. Further, the contract (node) that has received the request issues a request to another contract (node), and performs the processing in cooperation with each other. Since all the nodes perform the same process, it is possible to verify the operation results with each other.

  Each Geth client 21a adds a block to the shared information 22a based on a request from the WEB server 1 while synchronizing the shared information 22a as the block chain 22 between the clients via the Ethereum network. Block information is provided from the information 22a.

  An application operating on the WEB server 1a includes a business process that operates the registration unit 101, the search unit 102, the collation unit 103, and the update unit 104, and a data input / output that inputs and outputs data generated in the business process. Processing. The business process may be implemented in a contract code registered in a block chain with Geth Klein.

  In such a configuration, the user uses the service provided by the article information management system by accessing the WEB server 1a using an application or browser downloaded in advance.

  The system configuration described above is merely an example, and the system configuration of the present embodiment is not limited to this.

  12 and 13 are explanatory diagrams showing an example of a personal information protection method applied to the system configuration described above.

  The example shown in FIG. 12 assumes a case where the block chain is a public block chain. In this example, the owner information includes personal information such as name and contact information. In such a case, the article information management system controls information to be displayed (provided) for each user according to the disclosure range of the block chain.

  If there is no restriction on the blockchain disclosure range, that is, if the management node that manages the blockchain is connected via the Internet etc. and anyone can participate, such as public type blockchain, the disclosure range on the system side Need to be limited.

  In such a case, a user management function (user management unit) is provided as a business process of the WEB server 1a, and the user management function generates first key information from personal information, The second key information obtained by converting the key information may be associated with the individual. And a registration process (registration part) registers the block which recorded 1st key information instead of owner information in a block chain. Thereby, the first key information and the article are associated with each other. In the database 3a, an image data area (see reference numeral 31a) for storing image data and a user management area (see reference numeral 32a) for storing user management information in which the second key information is associated with an individual are physically stored. In other words, access to the user management area may be accepted only from an input / output process dedicated to the application of the WEB server 1a. Note that the business processing of the WEB server 1a is performed in the user management area based on the second key information converted from the first key information recorded in the block when acquiring personal information such as authentication. to access.

  In this way, even if the first key information is stored on the database 3a, the correspondence between the individual and the article may not be known only by the information in the image data area corresponding to the image DB3.

  The example shown in FIG. 13 assumes a case where the block chain is a consortium type or private type block chain. In the consortium type or private type block chain, since the block chain is managed by a limited management node, the block chain can also have information such as personal information that is intended to limit the disclosure range to the system user. In this case, an authority management function (authority management unit) is provided as a business process of the WEB server 1a, and when the authority management function provides block data to the user terminal, the requesting user terminal or its use The disclosure range of the data to be provided may be controlled based on the authority set for the person. In this way, the display content may be controlled on the application side based on the authority of the system user.

  The personal information protection method described above can also be applied to system configurations other than those described above.

  Next, a configuration example of a computer according to the embodiment of the present invention will be shown. FIG. 14 is a schematic block diagram illustrating a configuration example of a computer according to the embodiment of the present invention. The computer 1000 includes a CPU 1001, a main storage device 1002, an auxiliary storage device 1003, an interface 1004, a display device 1005, and an input device 1006.

  Each device (including the node) of the above-described article information management system may be mounted on the computer 1000, for example. In that case, the operation of each device may be stored in the auxiliary storage device 1003 in the form of a program. The CPU 1001 reads out the program from the auxiliary storage device 1003 and develops it in the main storage device 1002, and executes the predetermined processing in the above embodiment according to the program.

  The auxiliary storage device 1003 is an example of a tangible medium that is not temporary. Other examples of the tangible medium that is not temporary include a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, and a semiconductor memory connected via the interface 1004. When this program is distributed to the computer 1000 via a communication line, the computer that has received the distribution may develop the program in the main storage device 1002 and execute the predetermined processing in the above embodiment.

  The program may be for realizing a part of predetermined processing in each embodiment. Furthermore, the program may be a difference program that realizes the predetermined processing in the above-described embodiment in combination with another program already stored in the auxiliary storage device 1003.

  The interface 1004 transmits / receives information to / from other devices. The display device 1005 presents information to the user. The input device 1006 accepts input of information from the user.

  Further, depending on the processing contents in the embodiment, some elements of the computer 1000 may be omitted. For example, if the device does not present information to the user, the display device 1005 can be omitted.

  In addition, some or all of the constituent elements of each device are implemented by general-purpose or dedicated circuits (Circuitry), processors, and the like or combinations thereof. These may be constituted by a single chip or may be constituted by a plurality of chips connected via a bus. Moreover, a part or all of each component of each device may be realized by a combination of the above-described circuit and the like and a program.

  When some or all of the constituent elements of each device are realized by a plurality of information processing devices and circuits, the plurality of information processing devices and circuits may be centrally arranged or distributedly arranged. Also good. For example, the information processing apparatus, the circuit, and the like may be realized as a form in which each is connected via a communication network, such as a client and server system and a cloud computing system.

  Next, the outline of the present invention will be described. FIG. 15 is a block diagram showing an outline of the article information management apparatus of the present invention. As shown in FIG. 15, the article information management apparatus 6 of the present invention includes a registration unit 601.

  A registration unit 601 (for example, the registration unit 101) is an authentication image used for identity determination processing of a predetermined article authentication system that determines the identity of an article that is a subject using image recognition technology. An authentication image and a certificate that are authentication images of an article by receiving an authentication image of each of the management object and a certificate proving the authenticity of the article and owner information regarding the owner of the article A block in which a new block is added through a process according to a predetermined consensus algorithm in which two or more nodes participate, while registering the certificate authentication image, which is an authentication image, in association with a predetermined image database A transaction information block in which transaction details including at least the summary of the article authentication image, the summary of the certificate authentication image, and the owner information are recorded is added to the chain.

  With such a configuration, the authenticity of the article and the owner can be determined based on the information registered in the image database and the information recorded in the transaction information block without attaching or fixing information to the article itself.

  In addition to the configuration shown in FIG. 15, the article information management apparatus receives identification information, which is information that can specify an article to be managed, an image of an article to be verified and / or an image of an article certificate from the user. Is received, and the received image and the article authentication image and / or certificate authentication image of the article specified by the identification information are input to the article authentication system, and the same article and / or certificate as the subject is input. A verification unit (for example, verification unit 103) that requests sex determination may be further provided.

  Further, the article information management device receives from the user owner information regarding the latest owner accompanying the transfer of ownership of the article to be managed, and a transaction information block in which transaction details including at least owner information are recorded May be further provided with an updating unit (for example, the updating unit 104) for adding to the predetermined block chain.

  Further, when a transaction information block related to an article to be managed is added to the block chain, the registration unit may register information based on the transaction information block (block hash or the like) in the image database as information related to the article.

  In addition, the collation unit includes each summary of the article authentication unit image and the certificate authentication image recorded in the transaction information block relating to the article specified by the identification information, the article authentication unit image of the article registered in the image database, and If the summaries calculated from the certificate authentication image match, the article authentication system may determine the identity.

  Further, the article information management apparatus may include a search unit that searches for information on the managed article from the image database and the block chain in response to a request from the user.

  In addition, the transaction information block is related to information (for example, previous block management information D211) based on one or more blocks added to the block chain before the transaction information block and the previous transaction of the article describing the information. Information based on the transaction information block (for example, transaction history management information D224) may be further included.

  In addition, said embodiment can also be described like the following additional remarks.

  (Supplementary note 1) A ledger management system that manages a block chain in which a new block is added through a process according to a predetermined consensus algorithm in which two or more nodes participate, and an article that is a subject using image recognition technology An article authentication system for determining identity, an image database for storing at least an authentication image used for identity determination processing of the article authentication system, and an article information management apparatus. And receiving the authentication image of each of the management target article and the certificate of the article and the owner information about the owner of the article, and the certification of the article authentication image which is the authentication image of the article and the authentication image of the certificate In addition to registering the certificate authentication image in the image database, the summary of the product authentication image and the certificate authentication image are required in the blockchain. Article information management system comprising a registration unit including at least transaction details and owner information to add the recorded transaction information blocks.

  (Supplementary note 2) The article information management apparatus receives identification information, which is information that can identify an article to be managed, and an image of an article to be verified and / or an image of an article certificate from a user, and authenticates the article. Verification that inputs the received image and the article authentication image and / or certificate authentication image of the article specified by the identification information to request determination of the identity of the article and / or certificate that is the subject Item information management system according to supplementary note 1 including a section.

  (Supplementary Note 3) The article information management apparatus is an authentication image used for identity determination processing of a predetermined article authentication system that determines the identity of an article that is a subject using image recognition technology from a user. Receiving the authentication image of each of the managed items and the certificate proving the authenticity of the items and the owner information regarding the owner of the item, the authentication of the item authentication image and the certificate as the authentication image of the item A block chain in which a new block is added through a process according to a predetermined consensus algorithm in which two or more nodes participate, while registering a certificate authentication image that is an image for use in association with a predetermined image database And adding a transaction information block in which transaction details including at least a summary of the article authentication image, a summary of the certificate authentication image, and owner information are recorded. Goods information management method.

  (Supplementary Note 4) The article information management apparatus receives identification information, which is information that can identify an article to be managed, and an image of an article to be verified and / or an image of an article certificate from a user, and authenticates the article. Additional note for requesting determination of identity of article and / or certificate as subject by inputting received image and article authentication image and / or certificate authentication image of article specified by identification information to system Item information management method according to Item 3.

  (Additional remark 5) It is an image for authentication used for the identity determination process of the predetermined | prescribed goods authentication system which determines the identity of the articles | goods made into the object using image recognition technology from a user, Comprising: The authentication image of each of the goods and the certificate that proves the authenticity of the goods and the owner information about the owner of the goods are received, and the goods authentication image that is the authentication image of the goods and the authentication image of the certificate The certificate authentication image is associated with a predetermined image database and registered in a predetermined image database, and the product authentication is performed on a block chain in which a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate. To execute processing for adding a transaction information block in which transaction details including at least an image summary, a certificate authentication image summary and owner information are recorded Article information management program.

  (Additional remark 6) The identification information which is the information which can specify the articles | goods to be managed, and the image of the goods and / or the certificate of the goods which are to be collated are received from the user to the computer, The received image and the article authentication image and / or certificate authentication image of the article specified by the identification information are input, and processing for requesting the determination of the identity of the article and / or certificate as the subject is executed. The article information management program according to attachment 5.

  While the present invention has been described with reference to the present embodiment and examples, the present invention is not limited to the above embodiment and examples. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  The present invention is not limited to an antique product, and can be suitably applied to an application for managing an article that may be counterfeited and a document that proves the authenticity of the article.

DESCRIPTION OF SYMBOLS 10 Article information management system 1,6 Article information management apparatus 101,601 Registration part 102 Search part 103 Verification part 104 Update part 2 Ledger management system 21 Ledger management node 211 Registration information reception part 212 Block generation part 213 Block sharing part 214 Information storage Unit 215 block verification unit 216 registration information output unit 22 block chain 3 image DB
4 article authentication system 5 network 1000 computer 1001 CPU
1002 Main storage device 1003 Auxiliary storage device 1004 Interface 1005 Display device 1006 Input device

Claims (10)

An authentication image used for the identity determination process of a predetermined article authentication system that determines the identity of an article that is a subject using an image recognition technology, and is a management target article and the authenticity of the article. An authentication image for each certificate proving authenticity and owner information relating to the owner of the article are received, and an article authentication image that is an authentication image for the article and a certificate that is an authentication image for the certificate The product authentication image is registered in a predetermined image database in association with the document authentication image, and the article authentication image is added to a block chain in which a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate. And a registration unit for adding a transaction information block in which transaction details including at least the certificate authentication image summary and the owner information are recorded. An article information management apparatus characterized by the above. Receiving identification information, which is information that can identify an article to be managed, and / or an image of an article to be verified and / or an image of a certificate of the article from a user, and receiving the received image in the article authentication system; 2. A verification unit that inputs an article authentication image and / or a certificate authentication image of an article specified by the identification information and requests determination of the identity of the article and / or certificate that is the subject. Item information management device according to claim 1. A transaction information block in which transaction details including at least the owner information are recorded is received from the user as owner information regarding the latest owner associated with the transfer of ownership of the article to be managed. The article information management device according to claim 1, further comprising an update unit added to the item information. The registration unit registers information based on the transaction information block in the image database as information on the article when a transaction information block on the article to be managed is added to the block chain. The article information management device according to any one of the above. The collation unit includes each summary of the article authentication unit image and the certificate authentication image recorded in the transaction information block relating to the article specified by the identification information, the article authentication unit image of the article registered in the image database, and The article information management apparatus according to claim 4, wherein the article authentication system is configured to determine identity when each summary calculated from a certificate authentication image matches each other. The article information management apparatus according to any one of claims 1 to 5, further comprising a retrieval unit that retrieves information related to a managed article from an image database and a block chain in response to a request from a user. The transaction information block further includes information based on one or more blocks added to the block chain before the transaction information block and information based on a transaction information block related to the previous transaction of the article describing the information. Item information management apparatus given in any 1 paragraph of Claims 1-6. A ledger management system for managing a block chain in which a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate;
An article authentication system that determines the identity of an article that is a subject using image recognition technology;
An image database for storing at least an authentication image used in the identity determination process of the article authentication system;
An article information management device,
The article information management device includes:
An authentication image of each of the management target article and the certificate of the article and owner information regarding the owner of the article are received from the user, and the article authentication image that is the authentication image of the article and the certificate A certificate authentication image that is an authentication image is associated with the image database and registered in the image database, and the block chain includes at least a summary of the product authentication image, a summary of the certificate authentication image, and the owner information. An article information management system comprising a registration unit for adding a transaction information block in which transaction details are recorded. An article information management apparatus is an authentication image used for the identity determination process of a predetermined article authentication system for determining the identity of an article that is a subject using an image recognition technology from a user, and is an object to be managed Receiving an authentication image of each of the article and the certificate certifying the authenticity of the article and owner information regarding the owner of the article, and receiving the article authentication image, which is an authentication image of the article, and the certificate A block chain in which a certificate authentication image that is an authentication image is associated and registered in a predetermined image database, and a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate A transaction information block in which transaction details including at least the summary of the product authentication image, the summary of the certificate authentication image, and the owner information are recorded. Article information management method, characterized by. On the computer,
An authentication image used for the identity determination process of a predetermined article authentication system that determines the identity of an article that is a subject using an image recognition technology, and is a management target article and the authenticity of the article. An authentication image for each certificate proving authenticity and owner information relating to the owner of the article are received, and an article authentication image that is an authentication image for the article and a certificate that is an authentication image for the certificate The product authentication image is registered in a predetermined image database in association with the document authentication image, and the article authentication image is added to a block chain in which a new block is added through processing according to a predetermined consensus algorithm in which two or more nodes participate. A transaction information block in which transaction details including at least a summary of the certificate, a summary of the certificate authentication image, and the owner information are recorded is executed. Article information management program for.

Images