JP2022052331A - Management device and management system - Google Patents

Abstract

To provide new and useful management device and management system that can appropriately and industrially advantageously give excellent asset stability and liquidity to assets.SOLUTION: In a management system in which a management device at least including first storage means for storing assets together with at least an address on a block chain and a user terminal of a user who can use the assets are communicatively connected via a communication line, the management device functions as means for storing an account number of a deposit different from the assets by associating it with the first address, and when the first address of the assets is changed to a second address, for changing the first address associated with the account number to the second address based on the change.SELECTED DRAWING: Figure 1

Description

The present invention relates to a management device, a management system, and a program applied thereto.

Conventionally, electronic money and points have been given when purchasing products. E-commerce and points usually do not incur administrative fees when they are given, and are of great merit to both the side that gives the electronic money and points and the side that gives them. In recent years, a system configured to exchange points and money on a management server of a financial institution using electronic money or a dedicated account for points has also been studied (Patent Document 1), and digital As a currency, convenience is being improved more and more.
However, while the convenience is improved, there are problems of fraudulent use such as insider trading, money laundering, fraud and misuse of other digital currencies, and the management burden is heavy, so it is necessary to obtain a management fee. There was also the problem of. Therefore, there has been a long-awaited measure to solve these problems of unauthorized use without impairing the convenience of digital currencies or increasing the management burden.

By the way, digital currencies have become useful for solving problems such as fraudulent use due to the progress of blockchain technology, but they lack asset stability and are fundamental even if the total amount of issuance is regulated. It is still used as a high-risk, high-return asset. In recent years, for the purpose of improving asset stability, for example, issuing a digital currency (digital dollar) based on a legal tender (US dollar) with excellent asset stability has been studied (Patent Document 2). ..
However, the labor and management burden of disposing of legal tender for issuance is enormous, and issuing digital currency from legal tender itself has serious problems such as hindering the circulation of money, making it feasible. After all, it was difficult to satisfy the liquidity of virtual currencies, and such measures were not always satisfactory.

Japanese Unexamined Patent Publication No. 2009-9315 U.S. Patent Application Publication No. 2020/0151682

An object of the present invention is to provide a novel and useful management device and management system capable of appropriately and industrially advantageously imparting excellent asset stability and liquidity to an asset.

As a result of diligent studies to achieve the above object, the present inventors are a management device having at least a storage means for storing financial assets together with at least a first address on a blockchain, and deposits different from the financial assets. Is stored in association with the first address, and when the first address of the financial asset is changed to the second address, it is associated with the account number based on the change. If a management device having a means for changing the attached first address to the second address is used, excellent asset stability and good circulation are appropriately and industrially advantageous for the asset. It was found that such a management device and a management system can solve the above-mentioned conventional problems at once.
In addition, after obtaining the above findings, the present inventors have further studied and completed the present invention.

That is, the present invention relates to the following invention.
[1] A management device having at least a storage means for storing an asset together with at least a first address on a blockchain, and storing an account number of a deposit different from the asset in association with the first address. When the first address of the asset is changed to the second address, the first address associated with the account number is changed to the second address based on the change. A management device characterized by having means to do so.
[2] The management device according to the above [1], wherein the asset is a digital currency or a privilege.
[3] The management device according to the above [1], wherein the asset is a digital currency.
[4] The management device according to any one of the above [1] to [3], wherein the deposit is a foreign deposit.
[5] A management device having at least a first storage means for storing an asset together with at least a first address on a blockchain and a user terminal of a user who can use the asset are communicably connected via a communication line. In the management system, the management device stores an account number of a deposit different from the asset in association with the first address, and the first address of the asset is the second address. When changed to, the management system is characterized in that it has a means for changing the first address associated with the account number to the second address based on the change. ..
[6] The management system according to the above [5], wherein the asset is a digital currency or a privilege.
[7] The management system according to the above [5], wherein the asset is a digital currency.
[8] The management system according to any one of the above [5] to [7], wherein the deposit is a foreign deposit.
[9] Any of the above [5] to [8], wherein the management device further has means for allocating the deposit to the asset based on the deposit amount of the account number associated with the first address. The management system described in Crab.
[10] When the management device receives an inquiry request for the deposit amount of the deposit associated with the asset from the user terminal, the management device receives the asset from the second storage means. The management according to any one of the above [5] to [9], which has a means for extracting the deposit information including the deposit amount of the deposit associated with the user terminal and transmitting the deposit information to the user terminal. system.
[11] The management system according to any one of [5] to [10], wherein the user terminal has a bar code display means or a bar code reading means.
[12] A management device having at least a first storage means for storing an asset together with at least a first address on the blockchain is stored by associating an account number of a deposit different from the asset with the first address. Then, when the first address of the asset is changed to the second address, the first address associated with the account number is changed to the second address based on the change. A program that acts as a means of change.
[13] Further, the program according to the above [12], which functions as a means for allocating the deposit to the asset based on the deposit amount of the account number associated with the first address.
[14] Further, upon receiving the inquiry request for the deposit amount of the deposit associated with the asset, the deposit information including the deposit amount of the deposit associated with the asset is obtained from the second storage means. The program according to the above [12] or [13], which functions as a means for extracting.

According to the management device and management system of the present invention, excellent asset stability and liquidity can be appropriately and industrially advantageous to assets.

It is a figure which shows an example of a preferable embodiment of the management system of this invention. It is a figure which shows an example of the user information preferably used in this invention. It is a figure which shows an example of the digital currency transaction information preferably used in this invention. It is a figure which shows an example of the allocation deposit change information preferably used in this invention. It is a figure which shows an example of the asset information preferably used in this invention. In the present invention, an example of the system configuration of a user terminal is schematically shown using a functional block diagram. It is a figure which shows typically the information processing flow of the issuance of an asset and the allocation of a deposit, which is preferably carried out in this invention. It is a figure which shows typically the information processing flow of the balance inquiry which is carried out preferably in this invention. It is a figure which shows typically the information processing flow of the remittance processing which is carried out preferably in this invention. It is a figure which shows an example of the embodiment of the remittance screen displayed on the user terminal preferably used in this invention. It is a figure explaining an example of the structure of the block chain which is preferably used in this invention. It is a figure explaining an example of the transaction structure of the blockchain which is preferably used in this invention. It is a figure explaining an example of the data structure of the transaction of the blockchain which is preferably used in this invention. It is a figure explaining an example of the script of a blockchain transaction preferably used in this invention.

The management device of the present invention is a management device having at least a storage means for storing an asset together with at least a first address on a blockchain, and links an account number of a deposit different from the asset to the first address. When the first address of the asset is changed to the second address, the first address associated with the account number is changed to the second address based on the change. It is characterized by having a means to change to the address of.

Further, the management device is suitably used as a management system by being communicably connected to a user terminal of a user who can use the asset via a communication line, and such a management system is also included in the present invention. .. In the management system of the present invention, a management device having at least a first storage means for storing an asset together with at least a first address on a blockchain and a user terminal of a user who can use the asset have a communication line. A management system that is communicably connected via the management device, the management device stores an account number of a deposit different from the asset in association with the first address, and stores the first address of the asset. When the address is changed to the second address, it has a means to change the first address associated with the account number to the second address based on the change. It features.

In the present invention, it is preferable that the management device further has means for allocating the deposit to the asset based on the deposit amount of the account number associated with the first address. Further, in the present invention, when the management device receives an inquiry request for the deposit amount of the deposit associated with the asset from the user terminal, the management device stores the second storage. It is preferable to have a means for extracting deposit information including the deposit amount of the deposit associated with the asset from the means and transmitting the deposit information to the user terminal. According to these preferable ranges, not only the asset stability of the financial asset can be further improved, but also the liquidity of the financial asset can be improved, and further, the interest of the real asset can be improved. Utilization can be further promoted.

The "asset" is not particularly limited as long as it is an asset that can be stored at least together with an address on the blockchain, and may be a known asset such as a financial asset.
The "financial asset" is particularly limited as long as it is an asset having an asset value regardless of the value, excluding the actual asset, and can be stored at least together with an address on the blockchain. However, it may be a known one. Examples of the financial assets include financial assets that can be digitized, and more specifically, digital currencies, benefits, and the like are preferable examples. In the present invention, it is preferable that the financial asset is a digital currency because the currency circulation becomes more excellent and the means can be performed more easily.
The "asset value" means, for example, the magnitude of the value (for example, economic value, exchange value, purchasing power, etc.) included in a unit of the value exchange medium, and is appropriately used from a known value exchange medium based on a conventional method. It may be the value to be set.

Further, the "digital currency" preferably used in the present invention is not particularly limited as long as it is a unit of value that can be used as a currency for payment for a transaction including a financial transaction. The digital currency is usually a currency that is electronically generated and stored therein, but may be legal tender or cryptocurrency. The digital currency includes points, electronic money, and virtual currency.

The "address" is an identifier composed of alphanumerical characters used, for example, when transmitting and receiving the digital currency in a blockchain network, and may be a known one. Usually, it is used when designating the transfer source or destination of the digital currency. The address is preferably associated with the private key, more preferably generated from the public key paired with the private key, and the encryption identified by the public key corresponding to the private key. Most preferably it is an address.

The “deposit” is not particularly limited as long as it is money deposited in a predetermined account opened in a financial institution, and it does not matter whether it is domestic or foreign. Usually, the deposit has an account number. In the present invention, it is preferable that the deposit is a domestic or foreign legal tender deposited with a domestic or foreign financial institution. Examples of the deposit include checking deposits, ordinary deposits, time deposits, foreign currency deposits, certificates of deposit, and the like. In the present invention, it is preferable that the deposit is a foreign deposit because it can improve the liquidity of money.

The "user-specific information" is not particularly limited as long as it is information that can directly or indirectly identify the user of the asset, and may be publicly known user-specific information. Examples of the user-specific information include a user ID and the like. In the present invention, it is preferable that the user-specific information includes at least a user ID and a password. The user may be an individual or a corporation who is qualified to use the asset, and the presence or absence of ownership of the asset is not particularly limited.

The "communication line" is not particularly limited and may be a wireless line or a wired line as long as communication is possible, but it is preferable to include a telephone network or an internet network because bidirectional communication can be performed. ..

The "blockchain" refers to a network or the like that shares information about a blockchain composed of two or more information processing devices that communicate according to a predetermined communication protocol. A preferable example of the blockchain is a P2P network or the like.

The first storage means is not particularly limited as long as the asset can be stored on the blockchain together with at least the first address. Examples of the first storage means include storage means such as a semiconductor memory and a hard disk. In the present invention, it is preferable that the first storage means is a means for storing in a database of asset information as shown in FIG. 5, for example. As the database of the asset information, for example, as shown in FIG. 5, a database including the issue date / time, the issue destination user ID, the issue destination address, the issue amount, the cumulative issue amount, the account number, the allocated deposit amount, etc. Can be mentioned.

The second storage means is not particularly limited as long as it can store the allocated deposit amount of the allocated deposit in association with the address. Examples of the second storage means include storage means such as a semiconductor memory and a hard disk, and may be the same as the first storage means. In the present invention, it is preferable that the second storage means is a means for storing in a database of asset information as shown in FIG. 5, for example. As the database of the asset information, for example, as shown in FIG. 5, a database including the issue date / time, the issue destination user ID, the issue destination address, the issue amount, the cumulative issue amount, the account number, the allocated deposit amount, etc. Can be mentioned.

In the present invention, as shown in FIG. 2, for example, the management device further links to the user-specific information that identifies the user of the asset, and the balance of the asset and the deposit held by the user. It is preferable to include a third storage means for storing the forehead. Examples of the third storage means include storage means such as a semiconductor memory and a hard disk. In the present invention, it is preferable that the third storage means is a means for storing in a database of user information as shown in FIG. 2, for example. As the user information database, for example, as shown in FIG. 2, a database including a user ID, a password, a date of birth, a zip code, an address, a digital currency balance, an allotted deposit amount, and the like can be mentioned.

Further, in the present invention, it is preferable that the management device has a database of asset transaction information, and such a database of asset transaction information includes, for example, digital currency transaction information as shown in FIG. Examples include databases. More specifically, as the database of the financial asset transaction information, for example, as shown in FIG. 3, a database including a transaction date and time, a user ID, an address, a transaction type, a transaction volume, a customer address, and the like can be mentioned. .. In the present invention, it is preferable to have a database of allotted deposit change information for changing the allotted deposit address and the allotted deposit amount with the update of the asset transaction information database. As a database of such allocated deposit change information, for example, as shown in FIG. 4, a database including a change date and time, a change destination address, a change source address, an account number, a change deposit amount, and the like can be mentioned.

Further, in the present invention, it is preferable that the management device further has a means for allocating the deposit to the asset based on the deposit amount of the account number associated with the first address. The allocating means is not particularly limited as long as the deposit can be allocated to the asset, for example, the asset value of the asset is calculated, and then the deposit amount of the deposit is equivalent to the calculated asset value. A suitable example is a means for allocating the deposit corresponding to the allocated deposit amount after calculating (hereinafter, also referred to as “allocated deposit amount”). In the present invention, the allottable deposit amount of the deposit is calculated and stored from the deposit balance of the account number, and the deposit is allocated to the asset within the range of the allottable deposit amount. Is preferable.

Hereinafter, preferred embodiments of the management system of the present invention will be described in more detail, but the present invention is not limited to these specific examples.

FIG. 1 schematically shows an example of a preferred embodiment of the management system. In the management system of FIG. 1, a user terminal 11 of a user who can use digital currency and the management device (management server) 12 are connected to each other so as to be able to communicate with each other via a network (communication line) 18 including a blockchain 19. ing.

The management device (management server) 12 of FIG. 1 stores user information, digital currency transaction information, allocation deposit change information, asset information including address and allocation deposit information, and the like in storage means, respectively.

Examples of the user information include the database shown in FIG. 2. The user information in FIG. 2 is associated with a password, date of birth, address and its zip code, financial asset balance, allocated deposit amount, and the like for each user ID. The user may be an individual or a corporation.

Examples of the digital currency transaction information include the database shown in FIG. The digital currency transaction information in FIG. 3 is associated with a user ID, an address, a transaction type, a transaction volume, a customer address, and the like for each transaction date and time.

Examples of the allocated deposit change information include the database shown in FIG. The allocation deposit change information in FIG. 4 is associated with the change destination address, change source address, account number, change deposit amount, etc. for each change date and time.

Examples of the asset information include the database shown in FIG. The asset information in FIG. 5 is associated with the issue destination user ID, the issue destination address, the issue amount, the cumulative issue amount, the account number of the deposit, the allocated deposit amount of the deposit, and the like for each issue date and time.

The user terminal 11 is a terminal that is communicably connected to the management server 12 via a communication line, and the management server 12 receives an inquiry request for the real asset associated with the financial asset from the user terminal 11. Then, the management server 12 has a means for extracting the deposit information including the allotted deposit amount associated with the asset from the second storage means and transmitting the deposit information to the user terminal 11. Is preferable.

As the user terminal 11, for example, as shown in FIG. 6, a device including a storage unit 1101, a processing unit 1102, an input unit 1103, an output unit 1104, a display unit 1105, and a communication unit 1106 is a suitable example. It is mentioned as. That is, the user terminal 11 is not particularly limited as long as it has a basic configuration of a server or a computer. For example, when the user is a corporation, the management server of a store or a branch office, a ticket vending machine, or a cash register machine. And so on. In the present invention, it is preferable that the user terminal 11 functions as an SPV client that partially receives the data of the blockchain 19 from the management server 12 and performs processing.

In FIG. 6, the processing unit 1102 includes means for performing arithmetic processing such as a CPU. The processing unit 1102 realizes information processing related to the assets and the like in the present embodiment by executing the information processing program and the like stored in the storage unit 1101. The storage unit 1101 includes storage means such as a semiconductor memory and a hard disk. The storage unit 1101 is accessiblely connected to the processing unit 1102 and stores data and the like to be used for various processes. The input unit 1103 includes means for inputting information to the user terminal 11. The input unit 1103 includes, for example, a touch panel or a keyboard that receives input from the user. Further, the input unit 1103 includes a network interface or the like that receives information from the outside, and receives data to be processed. The output unit 1104 includes means for outputting the information processed by the payment terminal 11. The output unit 1104 includes, for example, a display that presents an image to the administrator. Further, the output unit 1104 includes a network interface and the like for transmitting information and the like to the outside of the user terminal 11 via the communication line 18. The display unit 1105 is, for example, a display device such as a liquid crystal display or a display panel. The input unit 1103 and the display unit 1105 may be separate bodies or may be configured as an integrated touch panel. The communication unit 1106 is, for example, a communication interface.

FIG. 7 is a diagram schematically showing an example of an information processing flow preferably carried out in the management system of FIG. 1. Such information processing is executed, for example, by each function of the user terminal 11 shown in FIG. 6 executing a predetermined program on the CPU. The management device 12 may have the same functions as the user terminal 11.
The user performs login authentication from the user terminal 11 to the management device 12 in order to purchase digital currency. Specifically, the user uses the user terminal 11 to transmit user authentication information including a user ID and a password to the management device 12 (S101). The management device 12 is managed and operated directly by the issuer of the digital currency or through another company or the like, and manages the digital currency information. When the management device 12 receives the user authentication information from the user terminal 11, the management device 12 performs authentication confirmation using the stored user information (S102). After the authentication confirmation is completed, the management device 12 transmits the authentication confirmation result to the user terminal 11 (S103). If the user authentication information does not match the stored user information, the management device 12 transmits error information indicating that an error has occurred in the authentication confirmation to the user terminal 11.

When the user terminal 11 receives the authentication confirmation result from the management device 12, the user terminal 11 displays the digital currency purchase screen (S104). The user specifies the quantity and the like of the purchase of the digital currency from the digital currency purchase screen, and sends the purchase request to the management device 12 using the user terminal 11 (S105). When the management device 12 receives the purchase request from the user terminal 11, the management device 12 performs a digital currency issuance process based on the purchase request of the user (S106). Further, the management device 12 calculates the value of the issued amount from the asset value and quantity of the digital currency to be issued, calculates the allocated deposit amount so as to be equivalent to the value, and calculates the allocated deposit amount of the deposit. Is assigned to the issued digital currency (S107). The asset value may be evaluated on a legal tender basis by using, for example, an exchange rate instead of the exchange rate. Further, the deposit may or may not be the deposit of the issuer of the digital currency, but if the deposit is not the deposit of the issuer of the digital currency, a comprehensive contract regarding the allocation is made in advance. It is preferable to conclude and make the above allocation possible by outsourcing. The management device 12 transmits the completion of digital currency issuance and the completion of deposit allocation to the user terminal 11 (S108). The deposit is allocated, for example, by storing it in the asset information. Further, the management device 12 transmits a settlement request for the cost of issuing the digital currency to the user's settlement server (not shown) (S109). The payment server of the payment business operator is, for example, a payment server of a financial institution, and is communicably connected to a management device 12 or a user terminal 11 via a communication line 18. When the payment server receives the payment request from the management device 12, the payment server performs payment processing based on a contract with the user or the like (S110). Such settlement processing may be carried out in accordance with conventional law. After the payment processing is completed, the payment server transmits the payment processing result to the management device 12 (S111), and also transmits the payment processing result to the user terminal 11 (S112).
By issuing the asset as described above, not only the liquidity of the asset can be improved, but also the asset stability of the asset can be improved, and the actual product can be improved. The utilization of assets can also be promoted.

FIG. 8 is a diagram schematically showing an example of an information processing flow preferably carried out in the management system of FIG. 1.
The user uses the user terminal 11 to transmit the user authentication information including the user ID and password to the management device 12 in order to inquire the balance of the digital currency or the like (S201). When the management device 12 receives the user authentication information from the user terminal 11, the management device 12 performs authentication confirmation using the stored user information (S202). After the authentication confirmation is completed, the management device 12 transmits the authentication confirmation result to the user terminal 11 (S203). If the user authentication information does not match the stored user information, the management device 12 transmits error information indicating that an error has occurred in the authentication confirmation to the user terminal 11.
After receiving the authentication confirmation result from the management device 12, the user terminal 11 transmits a balance inquiry to the management device 12 (S204). When the management device 12 receives the balance inquiry from the user terminal 11 whose authentication has been confirmed, the management device 12 calculates the balance of the user's digital currency from the database (S205), and the cumulative total of the allotted deposits allocated to the user. (S206), and the calculated balance of the digital currency and the cumulative total of the allotted deposit amount are transmitted to the user terminal 11 as an inquiry result (S207).

FIG. 9 is a diagram schematically showing an example of an information processing flow preferably carried out in the management system of FIG. 1.
In order to pay in digital currency, the user uses the user terminal 11 to transmit user authentication information including a user ID and a password to the management device 12 (S301). When the management device 12 receives the user authentication information from the user terminal 11, the management device 12 performs authentication confirmation using the stored user information (S302). After the authentication confirmation is completed, the management device 12 transmits the authentication confirmation result to the user terminal 11 (S303). If the user authentication information does not match the stored user information, the management device 12 transmits error information indicating that an error has occurred in the authentication confirmation to the user terminal 11.

After receiving the authentication confirmation result from the management device 12, the user terminal 11 displays the digital currency remittance screen to the user (S304). As a digital currency remittance screen, for example, a screen as shown in FIG. 10 is a preferable example. The user uses the user terminal 11 to specify a remittance destination address, an amount of digital currency, and the like, and performs remittance processing, whereby remittance processing information is transmitted to the management device 12 (S305). When the management device 12 receives the remittance processing information from the user terminal 11, the management device 12 checks the remittance processing information (S306) and assigns the deposit destination based on the remittance destination address of the remittance processing information, the amount of digital currency, and the like. Update (S307), deduct the balance of the digital currency of the user's old address and the allocated deposit amount (S308), and add the balance of the digital currency of the new address of the remittance destination and the allocated deposit amount. Processing is performed (S309). When the remittance process is completed, the management device 12 transmits the remittance process result to the user terminal 11 (S310).

The digital currency remittance screen of FIG. 10 will be described more specifically. On the digital currency remittance screen of FIG. 10, the digital currency balance 51 is displayed together with the allotted deposit amount 52. The barcode 53 is displayed so that the user can omit the process of designating the remittance destination address, the amount of digital currency, and the like on the payment destination user terminal. The bar code 53 is configured such that the address of the payment source is encrypted by being read by the user terminal of the payment destination, and the payment process in digital currency is executed. With such a configuration, the distributability of the present invention can be further improved. The bar code may be a two-dimensional bar code or the like. Further, on the digital currency remittance screen of FIG. 10, a two-dimensional bar code reading unit 54 is displayed. By pressing the button of the two-dimensional bar code reading unit 54, the scanner that reads the two-dimensional bar code can be operated, and by reading the two-dimensional bar code with the scanner, the address of the remittance destination. And it is configured so that the remittance amount, etc. can be automatically specified. With such a configuration, the distributability of the present invention can be further improved. Further, in the present invention, the bar code, the two-dimensional bar code reading unit, and the like can be similarly used for the balance inquiry and the like described above regardless of the remittance process. Therefore, in the present invention, it is preferable that the user terminal has a barcode display means or a barcode reading means.

Here, a blockchain preferably used in the present invention will be described. In the present invention, the block functions as a transaction database containing information about the asset (preferably a digital currency). Specifically, each block contains a list of transactions that are digest data and information about the transaction. The digest data includes a new hash value calculated from the previous block. That is, as shown in FIG. 11, by including the hash value calculated from the information contained in the previous block, each block is stored as a transaction database (blockchain) in a state of being connected like a chain. Will be done. The transaction history database is not only managed by the management server, but is also verified and added to the user terminal 11 and the like.

A transaction is data that records the exchange of said asset (preferably a digital currency). Transactions include input and output information. The input information is the output information of the transaction when the user who is the exchange source receives the exchange of the digital currency to be traded (identification information that identifies the transaction (transaction hash value, sequence number, etc.)) and use. Includes information (such as a script that meets the conditions for using the output) to prove that a person owns the asset (preferably a digital currency). The output information includes information such as the type and number of the exchanged asset (preferably digital currency), a script for using the exchanged asset (preferably digital currency) at an address specifying the exchange destination, and the like. ..

FIG. 12 shows an example of a blockchain transaction configuration preferably used in the present invention. The asset (preferably a digital currency) is represented as a transaction history, i.e., a collection of transactions that the asset (preferably a digital currency) has undergone. Each transaction (currency or other transaction) is digitally signed with the original owner's encryption key, including the hash value of the previous transaction and the new owner's public key. Information about all transactions is shared throughout the P2P network. By expressing the transaction in this way, there is an advantage that the currency etc. cannot be transferred by anyone other than the person without the permission of the original owner, and the third party can objectively confirm the transfer of the currency. Has.

FIG. 13 shows an example of a blockchain transaction data structure preferably used in the present invention. The transaction data structure has "output (currency to withdraw)" and "input (currency used for deposit)". The remittance requires the assets (preferably digital currency) and the destination (address) to be passed to the other party, and the output is a representation of them. In order to use the currency addressed to you or send money to someone, you must refer to the output of a past transaction, which corresponds to the input in this transaction. Multiple outputs and inputs can be specified in one transaction. In order to send an arbitrary amount of money, it is necessary to collect the output of transactions addressed to you in the past and specify it as the input of the transaction to be performed.

FIG. 14 shows an example of a blockchain transaction script preferably used in the present invention. In the asset (preferably a digital currency) of FIG. 14, a script describes a transaction that includes an input source address and an output source address. The transaction shown in the figure means that the digital currency sent from the user to himself in the past is used to send the currency of a predetermined face value to another user. A transaction is given a transaction identifier unique to the transaction, and the hash value of the transaction is usually used. Where multiple outputs can be specified in "Output Script", "Output 2" is a normal description for verifying the digital signature of the input, while "Output 1" is a description for adding a byte array. be. The script provides a code called "OP_RETURN", which, like a typical programming return, stops the script when it comes to it and does not allow references to its output. Then, if a byte array is added using "OP_PUSHDATA" following "OP_RETURN", "output 1" can be used as a byte array description field without adversely affecting the digital signature. Since there is an upper limit to the number of bytes in the byte array that can be added using "OP_PUSHDATA", it is a condition that the hash value is used for files and the upper limit is not exceeded for text messages.

By configuring as described above, a management device having at least a first storage means for storing an asset together with at least a first address on the blockchain, and an account number of a deposit different from the asset, said first. When the first address of the asset is changed to the second address, the first address associated with the account number is used based on the change. It can function as a means for changing to the second address. In the present invention, it is preferable to further function as a means for allocating the deposit to the asset based on the deposit amount of the account number associated with the first address, and further, the asset. Upon receiving the inquiry request for the deposit amount of the deposit associated with the asset, the second storage means functions as a means for extracting deposit information including the deposit amount of the deposit associated with the asset. Is also preferable. According to such a preferable range, not only the utilization of the asset can be further promoted, but also the utilization of the deposit can be further promoted.

The management device, management system, or program applied thereto of the present invention is particularly useful for utilizing information processing of assets and deposits.

11 User terminal 12 Management device (management server)
18 Communication line 19 Blockchain 51 Digital currency balance 52 Allocation amount 53 Bar code 54 Two-dimensional bar code reading unit 1101 Storage unit 1102 Processing unit 1103 Input unit 1104 Output unit 1105 Display unit 1106 Communication unit

Claims (14)

A management device having at least a storage means for storing an asset together with at least a first address on a blockchain, and storing an account number of a deposit different from the asset in association with the first address, and storing the asset. When the first address is changed to the second address, a means for changing the first address associated with the account number to the second address based on the change is provided. A management device characterized by having. The management device according to claim 1, wherein the asset is a digital currency or a privilege. The management device according to claim 1, wherein the asset is a digital currency. The management device according to any one of claims 1 to 3, wherein the deposit is a foreign deposit. A management device having at least a first storage means for storing an asset together with at least a first address on a blockchain and a user terminal of a user who can use the asset are communicably connected via a communication line. In the management system, the management device stores an account number of a deposit different from the asset in association with the first address, and the first address of the asset is changed to the second address. If this is the case, the management system is characterized by having a means for changing the first address associated with the account number to the second address based on the change. The management system according to claim 5, wherein the asset is a digital currency or a privilege. The management system according to claim 5, wherein the asset is a digital currency. The management system according to any one of claims 5 to 7, wherein the deposit is a foreign deposit. The management system according to any one of claims 5 to 8, further comprising a means for allocating the deposit to the asset based on the deposit amount of the account number associated with the first address. .. When the management device receives an inquiry request for the deposit amount of the deposit associated with the asset from the user terminal, the management device associates the management device with the asset from the second storage means. The management system according to any one of claims 5 to 9, which has a means for extracting deposit information including the deposit amount of the deposit and transmitting the deposit information to the user terminal. The management system according to any one of claims 5 to 10, wherein the user terminal has a bar code display means or a bar code reading means. A management device having at least a first storage means for storing an asset together with at least a first address on the blockchain stores an account number of a deposit different from the asset in association with the first address, and stores the asset. When the first address of the asset is changed to the second address, the means for changing the first address associated with the account number to the second address based on the change. A program that functions as. The program according to claim 12, further comprising functioning as a means of allocating the deposit to the asset based on the deposit amount of the account number associated with the first address. Further, upon receiving an inquiry request for the deposit amount of the deposit associated with the asset, a means for extracting deposit information including the deposit amount of the deposit associated with the asset from the second storage means. The program according to claim 12 or 13.

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