KR102491786B1 - Digital twin transaction device and method of origin - Google Patents

Abstract

1st ONFT corresponds to 1st origin real thing, and 2nd ONFT corresponds to 2nd origin real thing, and 1st origin real thing and 2nd origin real thing have their own value, The FT and the second ONFT have their own unique value, and the digital twin method that is created only when ONFT corresponds one-to-one with the original object is described.

Description

Digital twin device and method for trading Origin {DIGITAL TWIN TRANSACTION DEVICE AND METHOD OF ORIGIN}

The present invention relates to a digital twin device and a digital twin method capable of trading real origins in the real world as digital twins in the virtual world.

One of the common hobbies of idol singers and celebrities is that they prefer fashion or shoes as collectibles. The general public wants to have clothes or shoes signed by celebrities, and collectibles used by celebrities or containing traces/stories of celebrities can have a high collection value unlike general products.

On the other hand, for example, the collection of shoes has the following problems.

(1) Management of collected shoes can be difficult. Most of them manage shoes, which are collectibles, in an unprofessional way at home. Collected shoes can easily lose their value due to discoloration or wear. In the face of increasing market adoption of cryptocurrency, collectibles also need to be distributed as a cryptocurrency transaction method.

(2) It is not easy to trade as a collectible. Collectibles are mostly made up of individual transactions, which have low reliability and efficiency. There is a lack of trust in quality among traders. There is a lack of basic data for evaluating collections. Transactions can be made in the absence of information on collectibles.

(3) The collectibles industry is in its infancy. The collectibles industry is at a very low level.
■ Smart contract
A smart contract is a system in which the contents agreed upon by the contracting parties are programmed in advance and stored in an electronic contract document, and the contract is automatically executed when all the contract conditions are met.
If the existing blockchain 1.0 technology records 'what happened in the past', the blockchain 2.0 technology that implements the smart contract function can record 'what will happen in the future' in advance. A smart contract is a digital electronic contract function that allows you to conclude a desired contract between individuals (P2P) without intervening a third guarantor. There is a smart contract platform called Ethereum. By using a programming language called Solidity, if the contract period, amount, and conditions are pre-coded, any type of contract, such as real estate transactions, used car transactions, and trade transactions, can be automatically executed.
If the existing Bitcoin utilizes blockchain technology to create a cryptocurrency that can store and transmit value, Ethereum goes one step further and utilizes blockchain technology to automatically execute all types of contracts that humans can imagine. It is a smart contract platform that enables
By implementing smart contract functions through Ethereum, blockchain technology can be used not only for cryptocurrencies such as Bitcoin, but also for creating various contracts that require forgery prevention. In this regard, the existing Bitcoin is called 'Blockchain 1.0', and Ethereum, which implements smart contract functions, is called 'Blockchain 2.0'.
Smart contracts, which were difficult to actually implement due to the low reliability of existing digital protocols and problems of duplication and falsification, can be developed into blockchain-based smart contracts that can guarantee integrity and prevent tampering through blockchain technology.
The first blockchain-based smart contract is the Bitcoin Script. Bitcoin's payment system, UTXO (Unspent Transaction Output), also works by complex scripts expressed in a simple stack-based programming language. UTXO (UTXO) is an abbreviation of 'Unspent Transaction Outputs', and is called 'unspent transaction output value' or 'unspent transaction output'. Unlike Ethereum's 'account balance model', Bitcoin does not have an account or balance, and the existence of the coin is confirmed by validating the transaction through the "unspent output value" recorded in the blockchain. .
Blockchain-based smart contracts basically have two databases: a blockchain database that stores all transaction logs and a database that stores the state of smart contracts.
The smart contract here can be said to be an application that can change the state, and the state of the smart contract can be said to be a variable used in the application, and the input value to change it is included in the transaction.

Smart contract exposes two interfaces, one is transaction and one is query. The interface through the transaction is an approach that is stored in the transaction database and changes the state of the smart contract. A query is an operation that reads the state of a smart contract without leaving a record in the transaction database. Transactions execute writes, deletes, and modifications, and queries execute only queries through reads.

Hereinafter, in the present invention, origin includes shoes, figures, antiques, fashion, accessories, and the like. Origin can be a collectible item or a limited edition item in which a new value is added to a regular item, such as a celebrity. Each ONFT is created one-to-one in a state of one-to-one matching with each origin real thing. The concept of the real origin can also be used for remote transactions with people at a distance.

A specific ONFT may be logically divided into one or more BNFTs. When at least one BNFT is logically gathered, one ONFT can be formed.

The present invention is to develop and supply differentiated new global services based on innovative technologies and ideas.

The present invention adds new value in the transaction of collectibles such as shoes, and can trade collectibles with a block chain.

The potential of the present invention can be expected as a business that utilizes various collectibles. A new digital twin device and digital twin method that utilizes collections as differentiated content can be presented.

According to the digital twin device and method of the present invention, the first ONFT corresponds to the first origin real thing, the second ONFT corresponds to the second origin real thing, and the first origin real thing and the second origin real thing each have their own unique It has a value, and the first ONFT and the second ONFT have their own unique values, and ONFT can be created only when they correspond one-to-one to the real origin.

The digital twin for the transaction of the present invention can be defined as a device that generates ONFT and BNFT corresponding to the original object in a dual structure by applying the NFT of the block chain.

The 'character', which is the visual characteristic of collectibles, limited editions, and general trade items, and the 'twin' of the digital twin, the core concept of the 4th industry, are combined with the blockchain-based dual structure NFT (Non-Fungible Token) technology to originate the real thing at any time. It is possible to construct an irreplaceable digital twin device capable of exchanging between and ONFT.

ONFT can be expressed in the form of a representative image of Origin. ONFT and BNFT can be composed of two or more multi-layers that can express shapes and properties, and ONFT and BNFT can be created in a structure similar to block NFT (NFT) of the block chain. Thus, uniqueness and copy protection can be achieved.

Figure 1 is a block diagram showing the structure of the original origin, ONFT, and BNFT of the present invention.
Figure 2 is a block diagram showing a digital twin device for trading the real origin, ONFT, and BNFT of the present invention.
Figure 3 is a block diagram showing a method of matching ONFT with collectibles and trading collectibles or ONFT of the present invention.
Figure 4 is a block diagram showing the share structure of ONFT of the present invention.
Figure 5 is a block diagram showing the exchange or distribution of the original origin and ONFT of the present invention.
6 is a flowchart illustrating the process of creating an ONFT and transferring ownership according to the present invention.

The digital twin device of the present invention works as follows using a smart contract system.

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Record storage: The seller codes the content to upload the product, creates a transaction, and transmits it to the blockchain. When a product registration transaction occurs, all nodes in the network share the product registration transaction, create a block, and broadcast the block. Each node that receives the block adds the block to the end of its own blockchain and synchronizes its own smart contract database by applying the transaction stored in the block. Through this process, nodes in all blockchains share the smart contract state database.

Product Inquiry: The buyer searches for the product in the blockchain network. Writing to a smart contract causes a transaction, but reading a value that has already been stored does not cause a transaction. Since there is no need to change any data in the blockchain, only the state values stored in the smart contract database need to be queried, query information does not need to be synchronized with the blockchain, and responses can be made immediately regardless of block synchronization timing.

Contract Fulfillment: When a buyer sends a transaction to purchase a product, the transaction is shared and synchronized to the blockchain network. Register product buyers in the smart contract database of all nodes and transfer money to the seller. Ownership of the registered content then moves to the purchaser.

In this way, smart contracts share all data with each other, so even if a specific user tries to manipulate the execution result of the smart contract, it cannot be manipulated. In the same way that blockchain guarantees the integrity of all transactions, it can also ensure the integrity of smart contracts. In addition, contract enforcement costs and potential disputes can be reduced by automatically executing contracts when conditions are met.

■ Differences between ERC-20 tokens and ERC-721 tokens

(1) ERC-20 tokens are becoming the standard for issuing most tokens that we generally trade on exchanges, because ERC-20 tokens support replaceable cryptocurrencies. Tokens issued as ERC-20 tokens have the characteristic of 'fungible'.

ERC-20 is a standard token specification set by the Ethereum blockchain network. ERC-20 tokens can be exchanged with Ethereum and transferred to an Ethereum wallet.

Ethereum is a platform network designed to allow various decentralized applications to operate based on its own blockchain. DApps can easily and quickly issue tokens using smart contracts on the Ethereum platform.

Ether (ETH) is used in the Ethereum blockchain, and DApps on the Ethereum blockchain issue tokens appropriate for each solution that can be applied to other various fields. The token issued at this time seems to be an independent token, but in reality it is compatible and usable in the Ethereum ecosystem.

In a simple comparison, Android and iOS serve as the Ethereum platform, and the apps that exist on top of them are like DApps. At this time, it is almost impossible to integrate and use a certain portion of points generated while using each app unless it is an app of the same company. However, on the Ethereum platform, it is possible to consolidate and cash out the tokens issued by each DApp. As well as exchanging tokens within the dapp, it can be exchanged with tokens of dapps based on another Ethereum platform. To this end, the ERC-20 token standard was created. ERC-20 standard compliant tokens scattered across various dApps can be integrated later and converted into Ether to cash out all at once.

Ether is freely traded on the Ethereum network. Ether is considered a token or cryptocurrency used for all types of transactions. There are also other tokens on the Ethereum network that are used based on ether and exchange value. To run another token on the Ethereum blockchain, a code or technical standard must be established in a smart contract called ERC-20.

(2) ERC-721 tokens, unlike ERC-20 tokens, have 'non-replaceable' characteristics. ERC-721 tokens are distinctly different from ERC-20 tokens, where any token has the same value.

■ NFT (Non Fungible Token)

NFT stands for Non Fungible Token, which means non-fungible token. Therefore, tokens issued with ERC-721 are non-substitutable and all have their own value.

A representative example of ERC-721 is CryptoKitteies. Crypto Kitty's cats each have a different appearance. Therefore, the cat owned by the user becomes the one and only cat in the world.

The real origin of the present invention utilizes the characteristic of ERC-721 as a collectible token. ERC-721 allows tokens to become collectibles that can be shared within dApps and influence future NFT creation. Users get fun from owning the one and only Origin physical object in the world.

ERC-721 tokens must implement the proposed ERC-165 interface. This standard allows detection of interfaces implemented by contracts. This is very useful as it detects which interface a token implements so you can tailor methods/code to interact with it.

■ New concept of the present invention: ONFT or O-NFT

In the present invention, the origin object and the NFT are matched one-to-one, and the origin object and the NFT matched one-to-one are defined as ONFT or O-NFT. ONFT or O-NFT may belong to NFT (Non Fungible Token) issued in ERC-721.

Taking shoes as an origin real thing, for example, the first and second shoes, which contain the signatures, traces, and certifications of celebrities, are irreplaceable and each has its own value.

As the origin of the present invention, the first shoe and the second shoe have different meanings of ownership and have meaning as the only shoes that do not exist in the world.

Expanding to collectibles other than shoes, the first origin object and the second origin object each have a different meaning of ownership and have meaning as the only collectible item that is not unique in the world. The first original origin and the second origin may correspond to the first ONFT and the second ONFT, respectively.

From the point of view of collectibles, the present invention matches real shoes in the real world (which are defined as origin objects) and ONFTs in the virtual world one-to-one, and creates unique ONFTs or O-NFTs for each origin object. . If real shoes disappear or lose their value as collectibles, one-to-one matching will be lost, so ONFT or O-NFT may be disabled regardless of their existence. This is what differentiates it from the conventional Cryppo Kitty. Conventional CryptoKitties do not have a one-to-one correspondence with objects in the real world. In the present invention, ONFTs or O-NFTs in the virtual world can be created only when they correspond one-to-one to real origins in the real world.

■ Operating principle of the trading platform of the present invention

One ONFT can be displayed as a representative image of Origin.

Each BNFT is a fragment of the required number of original representative images of Origin, and one ONFT can be completed by collecting each BNFT. One ONFT, which is completed by gathering several BNFTs, corresponds to one real origin, and collecting ownership of the real origin can be obtained by collecting multiple BNFTs or one ONFT. BNF or ONFT can be traded on the digital twin device at any time.

Ownership of Origin can be traded through BNFT or ONFT transactions.

In the case of collectibles, when ONFT, which is equivalent to the real Origin, is created, the real Origin is stored in the storage (physically present in the real world), and the ONFT can be transferred and traded in the virtual world through an electronic wallet.

The digital twin device of the present invention is the world's first innovative platform capable of digitalizing all origin objects and services in the world, and can be a technology and service platform that creates new digital values that did not exist before.

The core process of the digital twin device is as follows.

① Planning and production of original products (shoes/figure/fashion/accessories/collectibles, etc.)

② Receipt and confirmation of Origin physical storage

③ One-to-one matching between the original object and ONFT by matching means, and the generation of ONFT corresponding to each origin object.

④ ONFT is logically divided into at least one BNFT, and ownership of ONFT or BNFT is traded in the virtual world through a digital twin device.

⑤ In addition to the basic service of trading the value of ONFT, additional services including the display of Origin as an additional service are available, and revenue distribution through basic services and additional services is achieved according to the nature of BNFT: 1st BNFT and the second BNFT are combined to form one ONFT, and the property that the first user has the first share of the total revenue is recorded in the first BNFT, and the second user has the second share of the total revenue may record the attribute in the second BNFT.

The basic service revenue through one ONFT transaction and the additional service revenue obtained by the additional service can be obtained by the first user as much as the first share and the second user as much as the second share.

⑥ If the original object is taken out of the storage, the ONFT corresponding to the original object is disabled, and when the object origin is restocked in the storage, the ONFT containing the restocked properties can be recreated. Initial creation, disablement, and regeneration transaction records can be recorded on the blockchain by smart contract.

The blockchain-based digital twin device of the present invention can be composed of core blockchain layers such as ONFT and BNFT creation management, origin management, membership management, and transaction price management based on the Tendermint Core.

Private/Public Chain can be selectively used depending on service expansion and added function layers. With Byzantine Fault Tolerance (BFT) and stateless configuration, it can process high transactions per second by increasing the speed of consensus.

The digital twin of the present invention can be an innovative system for storing and distributing the real origin and ownership separately. Origin objects can be safely stored and managed in a safe storage (which can be in the form of at least one of storage, exhibition hall, private museum, and group sales office). Origin's real ownership is made with O-NFT, so it can be quickly and safely traded in a decentralized state to consumers in need on the blockchain network.

The digital twin device of the present invention can be a next-generation global collectibles platform that is applied not only to the existing reseller market but also to auction services including Sotheby's and Christie's.

The key is to match the original object or auction item with the artist's autograph or story combined one-to-one with ONFT, and the digital twin of the present invention decentralizes the value of ONFT in a blockchain method.

The digital twin of the present invention can create a new value of collectibles by combining the words and actions of entertainers and stories about everything they eat and drink with the real thing of Origin. ONFT can be issued to the real origin that the story is combined with.

1 and 2, in the present invention, ONFT and BNFT having a dual structure can be corresponded one-to-one to the real origin.

ONFT takes the NFT (Non-Fungible Token) protocol issued in ERC-721 and can be issued in a one-to-one correspondence with the real origin. ONFT is tradable and can be purchased using fiat currency or cryptocurrency.

The first origin real object corresponds to the first ONFT, and the second origin real object corresponds to the second ONFT. 1 ONFT and 2 ONFT have their own unique values. ONFT or O-NFT can be created only when there is a one-to-one correspondence with the actual origin object in the real world.

If the original object disappears, one-to-one matching is lost, so ONFT or BNOFT may be disabled regardless of its existence. ORIGIN's real transaction record can be recorded on the blockchain by smart contract. Transaction records may be recorded in ONFT or BNOFT. If the original object disappears, it is reflected in the transaction record of the smart contract, and ONFT or BNOFT can be disabled while existing on the blockchain.

When ONFT, which is equivalent to the real Origin, is created, the real Origin is stored in the storage (physically present in the real world), and the ONFT can be transferred and traded in the virtual world through an electronic wallet.

Ownership of Origin can be traded through BNFT or ONFT transactions.

BNFT is a block that logically divides ONFT.

BNFT may include data on the equity structure, which is defined as the distribution ratio of the total revenue generated by Origin's basic services or additional services. When one ONFT consists of a first BNFT and a second BNFT, the first BNFT is owned by a first beneficiary, such as an entertainer, and the second BNFT is owned by a second beneficiary, such as an origin manufacturer. The first beneficiary may obtain a first percentage of the total revenue, and the second beneficiary may obtain a second percentage of the total revenue. The distribution ratio of total revenue can be determined in the form that several beneficiaries own each BNFT.

The basic service revenue may include at least one of the revenue generated from the value transaction of Origin and the revenue generated from the act of storing in the storage. Additional services may include exhibition fee income obtained in return for displaying Origin objects in storage.

The BNFT may include information about the mission. When one ONFT consists of 1st BNFT and 2nd BNFT, 1st BNFT is traded using fiat currency or cryptocurrency, and 2nd BNFT agrees to missions including advertising or marketing activities, or They can be traded when completing missions.

BNFT may include data on the percentage of ownership. When one ONFT consists of a first BNFT and a second BNFT, the first BNFT is owned by the first user, the second BNFT is owned by the second user, and the ONFT or the origin physical object is owned by the first user. The user and the second user can own it together. The value of one origin object can be shared by multiple owners, and the stake can be stored as BNFT's attribute data.

ONFT can be obtained when all of the BNFTs constituting it are gathered.

Referring to Figures 3 and 4, matching means are shown. The matching means may include at least one of an NFC tag, a hologram, an OR code, a barcode, and an RFID provided in the original product.

An NFC tag is mounted on the original object, and information on ONFT or BNFT may be recorded on the NFC tag.

If you own the original Origin, the original Origin may be damaged. When the physical origin is stored in the storage, ONFT or BNFT can be created that is matched one-to-one with the NFC tag mounted on the original origin.

When the original object is taken out of the storage, ONFT or BNFT matching one-to-one with the NFC tag attached to the original object can be returned to the ONFT server.

When the original object stored by the individual is restocked in the storage, ONFT or BNFT matching one-to-one with the NFC tag attached to the original object can be recreated. Regeneration information may be stored in the ONFT server. ONFT or BNFT may include records on which Origin objects were owned by individuals and information on the increase or decrease in the value of Origin objects. ONFT server can exist as a blockchain implemented by smart contracts.

On the other hand, if a celebrity owns or wears the real Origin, the value of the real Origin may increase. ONFT or BNFT may include information about the increase or decrease in the value of the origin object and the record of possession of the object origin by a celebrity.

Information at the first point in time when the real Origin was first stored in the storage, information at the second point in time when the value of the real Origin was increased or decreased by celebrities or general users, and Real Origin at the third point after the actual Origin was stored in the storage for a certain period of time. At least one of the information on the fluctuation of the value of may be stored in ONFT or BNFT.

Referring to FIG. 5 , in addition to the basic service in which the real origin is stored in the storage, a process of transacting the real origin between consumers is shown. Purchased physical origins may be delivered to the consumer either from the warehouse or from the manufacturer of the physical origin. The present invention can be used in a remote transaction method in which the seller and the original object are in the first place, the buyer is in the second place, and the original object in the first place is safely delivered to the buyer in the second place without changing with another object during the transaction. can

When the buyer purchases the physical origin, the shipper (seller) must deliver the physical origin to the buyer. The seller can create ONFT of the origin. The generated ONFT can be delivered to the purchaser instead of the original origin.

ONFT may store delivery information including at least one of a picture of the original product, price, date, and delivery address. According to the agreement between the shipper (seller) and the buyer, the ONFT server can deliver ONFT, which corresponds one-to-one to the delivery information and the original product, to the buyer. ONFT can be delivered to the purchaser instead of the purchased origin. Later, when the physical origin is delivered to the buyer, ONFT and the physical origin can be exchanged.

Sellers or consumers can use the e-wallet to check the status of ONFT or make transactions, pay the purchase cost of Origin through the e-wallet, check previous information of ONFT, and check logistics information. can

When the delivery man meets the buyer, he can scan ONFT from the app installed on the buyer's device. The matching means may be an OR code or the like. When ONFT's one-to-one matching is confirmed, the delivery man delivers the original Origin to the buyer. The real origin of the delivery man and the buyer's ONFT are exchanged. The buyer acquires the original product, and the delivery man acquires ONFT. ONFT of the delivery person can be confirmed by the seller and can be a means of confirming whether delivery has been completed. In this way, the remote transaction method can be completed.

Referring to FIG. 6, an ONFT server, a block chain node, a repository, and an ONFT exchange are shown.

The ONFT server is the origin real-life manager that creates and manages the real origin, the ONFT manager that creates a one-to-one correspondence of ONFT with the real origin or stores information about BNFT, and the ONFT trading department that stores the transaction information of ONFT. may include at least one of them.

Information input and output to the ONFT server can be recorded in the form of a smart contract in a blockchain node. Information on the creation, registration, warehousing, and exchange of ONFT can be managed in the form of a smart contract in a blockchain node.

In the storage, storage and delivery of Origin real objects and one-to-one matching information between ONFT and Origin real things occur, and the information generated in the storage can be managed in the form of a smart contract in a blockchain node.

The ONFT exchange generates information on the act of trading or auctioning ONFT, and the information generated in the ONFT exchange can be managed in the form of a smart contract in a blockchain node.

10...origin physical
20... BNFT
30...ONFT
40 ... Matching Means/NFC Tag
50... Storage
60...smart contract

Claims (18)

Information on the creation, registration, warehousing, and exchange of ONFT, which is recorded in the form of a smart contract at the blockchain node, is inputted and output to the ONFT server,
When purchasing the original product, ONFT is generated and delivered to the purchaser, corresponding to the original product on a one-to-one basis.
The origin real thing includes a first origin real thing and a second origin real thing that are different from each other, and the ONFT includes a first ONFT and a second ONFT that are different from each other,
The ONFT server maps the first ONFT to the first origin real thing and the second ONFT to the second origin real thing,
The first origin real thing and the second origin real thing have their own unique values, and the first ONFT and second ONFT have their own unique values,
The first ONFT and the second ONFT are generated only when they correspond one-to-one to the first origin real thing and the second origin real thing,
When at least one of the first origin real thing and the second origin real thing disappears, at least one of the first ONFT and the second ONFT corresponding to the disappeared real origin is disabled,
When the ONFT server generates the first ONFT equivalent to the first origin real thing,
The first origin real thing is stored in the storage,
The first ONFT is transferred and traded through an electronic wallet,
A plurality of BNFTs are created by logically dividing the ONFT,
When one ONFT consists of a first BNFT and a second BNFT, the first BNFT is owned by the first beneficiary, the second BNFT is owned by the second beneficiary, and the first beneficiary is the first beneficiary of the total revenue. 1 percentage, and the second beneficiary obtains a second percentage of the total revenue;
When one ONFT consists of a first BNFT and a second BNFT, the first BNFT is owned by the first user, the second BNFT is owned by the second user, and the ONFT or the origin physical object is owned by the first user. The first user has a first share in the total revenue, the second user has a second share in the total revenue, according to the ownership share ratio of the user and the second user together;
Information at the first point in time when the real Origin was first stored in the storage, information at the second point in time when the value of the real Origin was increased or decreased by celebrities or general users, and Real Origin at the third point after the actual Origin was stored in the storage for a certain period of time. A digital twin method in which at least one of the information about the fluctuation of the value of is stored in ONFT or BNFT.
delete delete According to claim 1,
Information on the creation, registration, warehousing, and exchange of the BNFT recorded in the form of a smart contract at the blockchain node is input and output to the ONFT server,
A digital twin method in which the ownership of the origin is traded through the BNFT or ONFT transaction.
delete According to claim 1,
When one ONFT consists of 1st BNFT and 2nd BNFT, 1st BNFT is traded using fiat currency or cryptocurrency, and 2nd BNFT agrees on missions including advertising or marketing activities, or A digital twin method that is traded when missions are performed.
delete According to claim 1,
A digital twin method in which a matching means is provided to match ONFT and Origin real objects one-to-one.
According to claim 1,
An NFC tag is attached to the original object, and information about ONFT or BNFT is recorded on the NFC tag.
A digital twin method in which an ONFT or BNFT is created that is matched one-to-one with the NFC tag attached to the original object when it is stored in storage or delivered to the consumer.
According to claim 1,
ONFT or BNFT is a digital twin method that includes information about the increase or decrease in the value of the original Origin and the record of possession of the original Origin by a celebrity.
delete According to claim 1,
Shipping information, including at least one of the original picture, price, date, and shipping address, is entered into ONFT or the ONFT server,
When the physical origin is delivered to the consumer, the purchaser's ONFT and the delivered origin are exchanged one-to-one, and the buyer acquires the actual origin instead of ONFT.
According to claim 1,
The status of ONFT is confirmed using the electronic wallet,
ONFT is traded through an electronic wallet,
The purchase cost of the original product is paid through the e-wallet,
Previous information of ONFT is confirmed through the e-wallet,
A digital twin method in which Origin real goods or ONFT logistics information is confirmed through an electronic wallet.
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