EP-4742135-A1 - TRANSACTION SYSTEM

Abstract

The purpose of the present invention is to provide a transaction system that is capable of using Internet of Things (IoT) technology to construct a transaction system related to general goods. The present invention provides a transaction system comprising: a data transaction unit that uses a blockchain to maintain and manage a transaction contract for a good and that executes the transaction contract for the good; a good owner account that owns the good; an issuer account that issues a good token to the good which is owned by the good owner; and one or more stakeholder accounts that carry out a transaction of the good, wherein the data transaction unit uses the good token to execute the transaction contract between the stakeholder accounts in order to carry out a transaction of the good, and the good token is a semi-fungible token.

Inventors

• SUZUKI TOMOYASU
• OGAWA DAISUKE
• GOTO TOSHIYA

Assignees

• Plat'Home Co., Ltd.

Dates

Publication Date

20260513

Application Date

20240701

Claims (5)

1. A transaction system comprising: a data transactor that maintains and manages a transaction contract for a thing utilizing a blockchain and executes the transaction contract for the thing; an account of a things owner that owns the thing; an issuer account that issues a things token to the thing owned by the things owner; and one or two or more stakeholder accounts that carry out a transaction of the thing, wherein the data transactor executes the transaction contract between the one or two or more stakeholder accounts using the things token for carrying out the transaction of the thing, and the things token is a semi-fungible token.
2. The transaction system according to claim 1, wherein the things token is a token having security fungibility and non-fungibility as a thing.
3. The transaction system according to claim 2, wherein the things token is a token having an account of the thing, a device token, a device asset token, and security information.
4. The transaction system according to claim 1, wherein the data transactor includes a brand account that carries out a transaction of a thing of a predetermined type, and the brand account and the issuer account make a contract, and based on the contract, the issuer account supplies the brand account with the things token having been issued.
5. The transaction system according to claim 4, wherein the brand account includes one or more brand accounts, the transaction system further comprising a brand DAO which is a rule interface that defines a rule between the one or more brand accounts and another account, wherein the brand makes the contract with the issuer account in accordance with the rule defined by the brand DAO.

Description

TECHNICAL FIELD The present invention relates to a transaction system for carrying out transactions of things. In particular, the present invention relates to a transaction system capable of handling things not directly pertinent to IoT devices while using IoT technology. BACKGROUND ART In recent years, the Internet of Things (IoT) has been widely utilized. Data obtained by sensors, etc. on the IoT is utilized for various purposes. A device that provides IoT data is called an IoT device. Moreover, transactions of data generated by this IoT device have also been carried out actively. For example, Patent Document 1 below discloses a system of connecting IoT devices by LPWAN to trade points. Moreover, Patent Document 2 below discloses a method for enabling financial transactions to be carried out utilizing IoT devices. Citation List Patent Documents Patent Document 1: Japanese Unexamined Patent Application (Translation of PCT Application), Publication No. 2021-519471Patent Document 2: Japanese Unexamined Patent Application, Publication No. 2022-109163 DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As described, it has been widely proposed to trade intangible things such as points and financial assets utilizing IoT technology. However, in a case of constructing an industrial system generally concerning things in the world, things and human beings not directly pertinent to IoT devices need to be involved in many cases. Even in a case in which the things are furnished with IoT devices, unrelated participants and ordinary persons may participate in transactions, and such ordinary persons will increase with the growth of the market. Moreover, things (devices or simple commodities) originally not pertinent to IoT will also increase with the growth of the market. In other words, most of the things in the world are devices (mere things (commodities)) not pertinent to IoT. If such a situation cannot be dealt with, it is difficult to apply IoT technology to a transaction system for things. In order to deal with such a problem, the inventors of the present application consider that the following ingenuities are required. (1) A currency relationship (interested parties, in particular, investors, recipients, and intermediate participants) related to things as described above needs to be handled.(2) There are an enormous number of things in the real world (too enormous to compare with the number of IoT devices), and it is necessary to achieve the ability to handle things exceeding the scale of several trillions.(3) There are various interested parties (e.g., belonging to a wide variety of jurisdictions, etc.) in an industrial system (a transaction system), and a method for handling them without contradiction is required. In view of such circumstances, the present invention has an object to provide a transaction system that concerns common things and that can be constructed using IoT technology. Means for Solving the Problems (Basic Principles) In order to solve the above-described problems, the present invention more specifically employs means for issuing a token called a "things token" having written therein information for handling a currency relationship pertinent to a thing. This enables a huge number of things and users to be dealt with without separately referring to currency rules, as the currency relationship is originally written in things. As a result, it is possible to adapt blockchain economics including things to the real world without difficulty. (Comparison with Conventional Blockchain) A transaction management system achieved by a conventional blockchain and a structure of the present invention will be compared. (Conventional System) Conventionally, a "things token" and a "currency token and security token" have been prescribed as separate tokens. As a result, information concerning things and information concerning currencies are managed and executed as separate databases. (System of the Present Invention) The present invention uses "a security-functionality-incorporated token" as the "things token". As a result, a relationship of a participant with a thing can be executed by the token and a smart contract. (Example of Implementation Method) A security functionality can be incorporated into a things token utilizing ERC-3525 (a semi-fungible token), or a smart contract can be separately implemented as a things protocol to provide the things token with both of non-fungibility as a thing and security fungibility. Then, by allowing various stakeholders to participate in the things protocol, various contractual relationships between things and participants and scalability can be achieved at the same time. ERC-3525 ERC-3525 is one of token standards of Ethereum, and is often called a semi-fungible token (SFT), which is a kind of important token along with non-fungible tokens (NFTs) (ERC-721), fungible tokens (FTs) ERC-20, etc. ERC-3525 (SFT) can also be utilized as a currency like an FT and ca