WO2022244927A1

WO2022244927A1 - System for dapp user fee transaction through setting of coin exchange rate

Info

Publication number: WO2022244927A1
Application number: PCT/KR2021/013842
Authority: WO
Inventors: 전명산; 김종현; 이인
Original assignee: (주)소셜인프라테크
Priority date: 2021-05-20
Filing date: 2021-10-08
Publication date: 2022-11-24
Also published as: KR102365824B1

Abstract

Disclosed is a system for setting and presenting a fee for using a prescribed service on a blockchain platform, wherein the system comprises: a deposit unit in which prescribed key coins are deposited and stored; an exchanging unit for setting a standard price of the prescribed key coins, and setting the exchange rate between the prescribed key coins and dApp tokens; and a charging unit for requesting a fee from a user using the prescribed service for dApp tokens corresponding to the prescribed key coins.

Description

DApp user fee trading system through coin exchange rate setting

The present invention relates to a fee transaction and exchange system for platform use on a blockchain platform, and more specifically, to present a fee to pay a fee for the use of a dApp running on a blockchain platform with a dApp token and exchange rate This is a technical field related to the DApp user fee trading system through setting the coin exchange rate to be exchanged for key coins according to

The term '4th Industrial Revolution', which first appeared at the Davos Forum in 2016, creates new value across all fields by connecting and integrating the real and digital worlds with ICT technology and data.

Due to the characteristics of technology emphasizing security and trust, blockchain initially developed centering on the financial sector, but as the technology evolves, the applicable fields are gradually expanding. In particular, it is being actively applied to fields that require transaction reliability and brokerage cost reduction.

One of the most important characteristics of blockchain is 'decentralization'. A copy of the transaction history is distributed to each network member, and whenever a new transaction occurs, the transaction is authenticated with the consent of the members.

'Distributed ledger technology', the underlying technology of block chain, can be said to be a synchronized ledger of data possessed by all users on the network system. Data changes that occur within the system are not controlled by the central server and are equally recorded in the ledgers of all nodes (individuals and specific organizations) constituting the network at regular time intervals to maintain data consistency.

Through this method of decentralization, the need for a transaction intermediary disappears, the efficiency and transparency of transactions are increased, and faster and safer transactions can be made at a lower cost.

The blockchain, called the second Internet, is expected to open a new era of 'value' with enhanced transparency and reliability beyond the 'information' of the existing Internet. The value of decentralization that blockchain pursues is open, but it will enable fair information sharing and profit distribution to users in a safe way.

Documents and electronic transactions through decentralization are being carried out in various ways, and electronic transactions and document processing are converted to digital and applied through block chains, but their speed and versatility are not fast.

As a technical attempt for the content, there is a prior patent document “general purpose tokenization system for blockchain-based cryptocurrency (Publication No. 10-2018-0114198, hereinafter referred to as Patent Document 1)”.

In the case of Patent Document 1, as a method of generating, redeeming, and transmitting a token associated with a token in a person-to-person distributed ledger, a token-related metadata is included in a redemption script associated with a cryptocurrency transaction on a person-to-person distributed ledger Include steps.

In the case of Patent Document 1, it provides a method for issuing and / or transmitting tokens, generating a blockchain transaction (Tx) with an output (TxO) associated with the amount of cryptocurrency such as Bitcoin and the hash of the redemption script Include steps. The redemption script contains metadata, which in turn contains tokens. A token is either a representation of a tokenized entity or a reference to a tokenized entity. The redemption script contains at least one (preferably two or more) public keys. Metadata can be provided to the redemption script at a location specified in the blockchain protocol as the location for the cryptographic key.

As another published patent technical document, “(Publication No. 10-2018-0115766, hereinafter referred to as Patent Document 2. )” exists.

In the case of Patent Document 2, it relates to block chain technology such as bitcoin block chain and tokenization of assets and entities.

In the case of Patent Document 2, it is particularly suitable for implementing payroll on a blockchain platform, and includes a method and system for transferring cryptocurrency from a first node to a second node. Both nodes, associated with the payroll, have each asymmetric cryptographic pair, each pair containing a master private key and a master public key. Each additional private key and public key may be determined based on the master private key, master public key, and generator values at each node. Additional private and public keys can form a hierarchy. A common secret may be determined at each node based on the additional private and public keys. A common secret can be used to securely transmit confidential information over a communications network.

Another patent document is “Tokenization method and system for realizing exchange in blockchain (Publication No. 10-2018-0115764, hereinafter referred to as Patent Document 3).”

In the case of Patent Document 3, a method and corresponding system for controlling the performance of a process performed through a blockchain may be provided. The blockchain may or may not be a Bitcoin blockchain. The process may be a lending process. Advantageously, the present invention provides a mechanism by which the ultimate owner of a property or other asset may borrow money against that asset, which requires that returns to the investor(s) be determined through the payment of interest. specify how this can be achieved in a way that does not This makes non-interest-bearing loans compliant.

In the case of Patent Document 3, a blockchain implementation method (and corresponding system) for inserting data into a blockchain transaction (Tx) is provided. The method includes deriving a public key-private key cryptographic pair for data; deriving a signature on the data using the public key-private key cryptographic pair; Encoding the data to generate coded metadata about the data. Coded metadata is sent to the blockchain in transactions. A signature and script are received from at least one user to enable access to the embedded data. The script contains the signer's public key. Metadata includes a hash of the data and a pointer to the data so that it can be located. The hash is used as the primary key of the lookup table where the data is stored.

In the case of conventional commercialized technologies or previously published patent documents, payment for resource use in a blockchain platform such as Ethereum is a fee paid to coins or tokens used in DApps and Ethereum (mainnet). There was a problem in that entry barriers exist due to differences in coins or tokens.

In addition, existing technologies have problems with unaffordable fees and poor predictability for service users using DApps, such as a large difference in fees for resource use due to the volatility of the value of key virtual assets compared to legal tender.

The DApp user fee transaction system through coin exchange rate setting according to the present invention was devised to solve the conventional problems as described above, and presents the following problems to be solved.

First, it allows users to pay for the dapp tokens used by dapp users as fees without the need to purchase a separate mainnet coin.

Second, the standard price for the key coin is determined through the ecosystem, and the market price can be protected through the key coin deposit.

Third, the added value created by the blockchain, such as block rewards and fees, should be distributed to all participants in the blockchain platform ecosystem.

The problems to be solved in the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The DApp user fee transaction system through setting the coin exchange ratio according to the present invention has the following problem solving means for the above problem to be solved.

DApp user fee trading system through coin exchange rate setting according to the present invention is a system that sets and presents a fee for using a predetermined service on a blockchain platform, in which a predetermined key coin is deposited, and the predetermined key coin is Deposit units stored; an exchange unit that sets a standard price of the predetermined key coin and sets an exchange rate of the predetermined key coin with a DApp token; and a charging unit requesting the fee of the Dapp coin corresponding to the predetermined key coin from a user using a predetermined service.

The deposit unit of the Dapp user fee transaction system through coin exchange rate setting according to the present invention includes a coin deposit unit in which the key coin is deposited; And it may be characterized in that it comprises a coin storage unit for storing the key coin deposited in the coin deposit unit.

The exchange unit of the DApp user fee trading system through coin exchange rate setting according to the present invention includes a price setting unit for setting a standard price of the predetermined key coin; And it may be characterized by comprising an exchange ratio setting unit for setting an exchange ratio between the predetermined key coin and the Dapp token.

The price setting unit of the Dapp user fee trading system through coin exchange rate setting according to the present invention may be characterized in that the standard price for the predetermined key coin is presented through an agreed price presented from a preset external server. .

The exchange rate setting unit of the dapp user fee trading system through coin exchange rate setting according to the present invention may be characterized in that the exchange rate for the predetermined key coin and the dapp token is set by a preset node .

The charging unit of the DApp user fee transaction system through coin exchange rate setting according to the present invention includes: a use request unit for obtaining a request for use of the predetermined service from the user; and a fee presentation unit for presenting the fee corresponding to the use request to the user when the user's request for use is received.

The fee presenting unit of the Dapp user fee trading system through coin exchange rate setting according to the present invention presents the fee corresponding to the DApp token held by the user, and the fee is based on the predetermined key value according to the exchange rate. It may be characterized in that the fee for the DApp token corresponding to the standard price of the coin is presented.

The fee of the Dapp user fee trading system through the coin exchange rate setting according to the present invention is characterized in that the fee information of the DApp token is set at a predetermined time interval from the reference price of the predetermined key coin and presented to the user. can be done with

The exchange unit of the Dapp user fee trading system through coin exchange rate setting according to the present invention is a coin exchange unit that exchanges the DApp token paid by the user as a fee for the predetermined key coin according to the exchange rate. It may be characterized by further including.

Dapp user fee transaction system through coin exchange rate setting according to the present invention further comprises a rewarding unit that compensates the plurality of depositors at a predetermined rate relative to the deposit amount according to the deposit amount of the key coin of the plurality of depositors that can be characterized.

The DApp user fee transaction system through the coin exchange rate setting according to the present invention having the above configuration provides the following effects.

First, blockchain service users can receive and pay fees for DApp tokens, so that when using a blockchain, they can solve the usage and fee payment with a single token.

Second, it is possible to increase the predictability of the user's fee payment by receiving a fee according to the exchange rate of the DApp token against the key currency standard price.

Third, by providing depositors with compensation for depositing key coins, it provides transaction motivation for using the blockchain platform.

Fourth, through depositors' pre-deposit of key coins, depositors can participate in the market making function.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a conceptual diagram of a DApp user fee trading system through setting a coin exchange rate according to an embodiment of the present invention.

2 is a conceptual diagram illustrating that key coins are deposited in a deposit unit by a plurality of depositors in a Dapp user fee transaction system through coin exchange ratio setting according to an embodiment of the present invention.

3 is a conceptual diagram illustrating that the price of a key coin is set through a preset external server in a Dapp user fee transaction system through coin exchange rate setting according to an embodiment of the present invention.

4 is a conceptual diagram illustrating that an exchange ratio between a key coin and a DApp token is set in an exchange unit in a Dapp user fee trading system through coin exchange ratio setting according to an embodiment of the present invention.

5 is a conceptual diagram illustrating receiving a request for using a blockchain from a blockchain user and presenting a predetermined fee in the DApp user fee trading system through coin exchange ratio setting according to an embodiment of the present invention.

6 is a conceptual diagram illustrating that a user receives a fee for a DApp token through a fee presentation unit in a DApp user fee trading system through coin exchange rate setting according to an embodiment of the present invention.

7 is a conceptual diagram illustrating that a DApp token provided through a user of a Dapp user fee trading system through a coin exchange ratio setting according to an embodiment of the present invention and a key coin are exchanged through an exchange ratio.

8 is a conceptual diagram illustrating that a key coin is rewarded through a rewarding unit in a Dapp user fee transaction system through setting a coin exchange ratio according to an embodiment of the present invention.

9 is a block diagram showing each configuration of a DApp user fee trading system through setting a coin exchange rate according to an embodiment of the present invention.

10 is a block diagram showing a deposit unit and sub-components of a Dapp user fee transaction system through coin exchange rate setting according to an embodiment of the present invention.

11 is a block diagram showing an exchanging unit and sub-components of a DApp user fee transaction system through coin exchange ratio setting according to an embodiment of the present invention.

12 is a block diagram showing a charging unit and sub-components of a DApp user fee transaction system through coin exchange rate setting according to an embodiment of the present invention.

Since the Dapp user fee trading system through coin exchange rate setting according to the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, or substitutes included in the technical spirit and scope of the present invention.

1 is a conceptual diagram of a DApp user fee trading system through setting a coin exchange rate according to an embodiment of the present invention. 2 is a conceptual diagram illustrating that key coins are deposited in a deposit unit by a plurality of depositors in a Dapp user fee transaction system through coin exchange ratio setting according to an embodiment of the present invention. 3 is a conceptual diagram illustrating that the price of a key coin is set through a preset external server in a Dapp user fee transaction system through coin exchange rate setting according to an embodiment of the present invention. 4 is a conceptual diagram illustrating that an exchange ratio between a key coin and a DApp token is set in an exchange unit in a Dapp user fee trading system through coin exchange ratio setting according to an embodiment of the present invention. 5 is a conceptual diagram illustrating receiving a request for using a blockchain from a blockchain user and presenting a predetermined fee in the DApp user fee trading system through coin exchange ratio setting according to an embodiment of the present invention. 6 is a conceptual diagram illustrating that a user receives a fee for a DApp token through a fee presentation unit in a DApp user fee trading system through coin exchange rate setting according to an embodiment of the present invention. 7 is a conceptual diagram illustrating that a DApp token provided through a user of a Dapp user fee trading system through a coin exchange ratio setting according to an embodiment of the present invention and a key coin are exchanged through an exchange ratio. 8 is a conceptual diagram illustrating that a key coin is rewarded through a rewarding unit in a Dapp user fee transaction system through setting a coin exchange ratio according to an embodiment of the present invention. 9 is a block diagram showing each configuration of a DApp user fee trading system through setting a coin exchange rate according to an embodiment of the present invention. 10 is a block diagram showing a deposit unit and sub-components of a Dapp user fee transaction system through coin exchange rate setting according to an embodiment of the present invention. 11 is a block diagram showing an exchanging unit and sub-components of a DApp user fee transaction system through coin exchange ratio setting according to an embodiment of the present invention. 12 is a block diagram showing a charging unit and sub-components of a DApp user fee transaction system through coin exchange rate setting according to an embodiment of the present invention.

In the case of the DApp user fee trading system through setting the coin exchange rate according to the present invention, as shown in FIG. In the following, a system for exchanging fees and providing rewards will be described.

On the public blockchain, DApp (Decentralized Application, dApp) is operated through operators or individuals who use DApp, and provides service users with desired services.

Accordingly, service users who use DApps pay a fee corresponding to the DApp usage fee when using the DApp.

DApp virtual assets correspond to DApp tokens (20) used by DApps, and users pay transactions and fees in DApps through DApp tokens (20).

In the case of a fee payment mechanism based on the conventional Ethereum blockchain platform, the mainnet for the Ethereum blockchain platform (hereinafter referred to as the mainnet) in order to trade through the DApp on the Ethereum blockchain platform. There was the hassle of purchasing tokens separately and paying fees.

In the conventional method, it is difficult for the DApp service to be activated due to the inconvenience of requiring the user to separately obtain the DApp token and the mainnet token used in the DApp.

On the other hand, in the present invention, unlike systems that require a separate purchase of mainnet tokens, users who use DApp do not need to separately purchase mainnet tokens, and can pay the DApp token 20 they use as a fee. Advantages do exist.

As shown in FIGS. 1 and 9, the DApp user fee transaction system through coin exchange rate setting according to the present invention is a system that sets and presents a fee for the use of a predetermined service on a blockchain platform. , 100), an exchanging unit (200), and a charging unit (charging unit, 300).

First, as shown in FIG. 2, in the case of the deposit unit 100, a predetermined key coin 10 is deposited, and the predetermined key coin 10 can be stored.

The predetermined key coin 10 refers to a coin used as a key currency on a blockchain platform.

The key coin 10 deposited in the deposit unit 100 is deposited by a plurality of depositors, and the key coin 10 can be stored in the deposit unit 100 through pre-deposit of a plurality of depositors.

In the case of a plurality of depositors, a specific target person who has secured the key coin (10) through a private sale may correspond to a person who has secured the key coin (10) in advance, and a person who has secured the key coin (10) through block compensation may correspond to

In the case of the exchange unit 200, a standard price of a predetermined key coin 10 may be set, and an exchange rate of the predetermined key coin 10 with the DApp token 20 may be set.

The exchange unit 200 sets the price of the key coin 10 and sets the exchange ratio between the DApp token 20 and the key coin 10 when the standard price of the key coin 10 is set.

The charging unit 300 may request a fee corresponding to the DApp token 20 corresponding to the predetermined key 10 coin from the user using the predetermined service.

When users use services such as transactions through DApps on the blockchain platform, they use the resources of the blockchain platform and pay fees for using the blockchain platform resources.

Resources of the blockchain platform refer to network resources, and resources include CPU (central processing unit), RAM (Random Access Memory), network usage fee, storage space usage fee, etc. can mean

The fee presented through the charging unit 300 can be presented to the service user according to the fee system requested by itself on the blockchain platform.

The charging unit 300 presents a fee for the dapp token 20 held by the user, and the fee for the presented dapp token 20 is presented according to the standard price and exchange rate of the predetermined key coin 10 it is desirable

In the case of the deposit unit 100 of the Dapp user fee transaction system through the coin exchange rate setting according to the present invention, it may include a coin deposit unit 110 and a coin storage unit 120.

In the case of the coin depositor 110, key coins are deposited by a plurality of depositors.

In the case of the key coin 10, it may be deposited through an interface corresponding to the depositor's electronic wallet.

An electronic wallet is a term that depositors want to easily access and deposit a predetermined key coin (10), and corresponds to an electronic wallet on a blockchain platform. It is a term commonly used in the industry. It may mean a dedicated account for depositing the coin 10.

In the case of a predetermined key coin 10 deposited through the coin deposit unit 110, it may be stored through the coin storage unit 120.

The exchanging unit 200 of the DApp user fee trading system through coin exchange rate setting according to the present invention may include a price setting unit 210 and an exchange rate setting unit 220.

As shown in FIGS. 3 and 4 , in the case of the price setting unit 210, by setting the standard price of a predetermined key coin 10, a predetermined key coin through an agreed price presented from a preset external server. A standard price for (10) can be suggested.

In the case of a preset external server, an agreed price for determining a standard price of a predetermined key coin 10 may be provided through an oracle service.

The oracle service provides oracle data, and may include, for example, oraclize, chainlink, iCash, etc., and the oracle data provided by the price setting unit 210 is successful payment. Alternatively, it may correspond to data such as price changes.

In addition, the agreed price received by the price setting unit 210 may be provided with a value for a specific period by calculating an average price of coins issued by a specific server, institution, or organization.

Based on the oracle data provided by the price setting unit 210, the standard price for the predetermined key coin 10 may be presented, and the price of the predetermined key coin 10 may be determined by price fluctuations and payment data of the oracle data. can be variable.

In addition, in the case of the exchange ratio setting unit 220, an exchange ratio between a predetermined key coin 10 and the DApp token 20 can be set.

The exchange rate between the key coin 10 and the Dapp token 20 can be calculated by a preset node, and it is preferable that the exchange rate is set with the participation of a preset node.

In the case of a preset node, it may be composed of a plurality of nodes, and an exchange rate may be set through participation of a plurality of nodes.

That is, the standard price and the exchange rate can be determined through a task in which the standard price presented through the oracle service is stabilized by a preset node.

In the case of the charging unit 300 of the DApp user fee transaction system through coin exchange rate setting according to the present invention, a use request unit 310 and a fee presentation unit 320 may be included.

In the case of the use request unit 310, the user may obtain a use request for the use of blockchain platform resources.

In response to a request for use of the blockchain platform resource obtained through the use request unit 310, the fee presentation unit 320 presents a use fee.

In the case of a usage fee presented by the fee presentation unit 320, it is preferable to present a fee for the DApp token 20 held by the user.

In the case of the fee presented to the user by the fee presentation unit 320, the Dapp token 20 corresponding to the price of the predetermined key coin 10 according to the exchange ratio between the Dapp token 20 and the key coin 10 to present a fee.

For example, as shown in FIGS. 5 and 6, if user #1 makes a transaction with user #2 through a dapp on a blockchain platform, user #1 uses the dapp token 20 used in the dapp to Transaction with #2, user #1 must pay a fee for using blockchain platform resources.

At this time, the fee presentation unit 320 presents the fee so that the coin that user #1 pays as a fee can be paid with the same token as the DApp token 20 used in the DApp.

The fee presented by user #1 is the fee for the dapp token (20) corresponding to the key coin (10), and user #1 can use the dapp token (20) held without purchasing a separate key coin (10) as a fee. It is possible to pay with

For example, the fee presentation unit 320 checks the fee information based on the current in the user's wallet at the time when user #1 uses the resources of the blockchain system, the price of the DApp token 20 for a set time interval. After checking the information, you can present the fee for the DApp token (20) at the time of fee payment.

As for the fee price of the DApp token 20 presented to the user as a fee, it is preferable to present a fee corresponding to the market price of the DApp token 20 with reference to the standard price of the key coin 10.

In the case of the exchange unit 200 of the Dapp user fee trading system through the coin exchange rate setting according to the present invention, the DApp token 20 paid by the user as a fee is exchanged with a predetermined key coin 10 according to the exchange rate It may include a coin exchange unit 230 to do.

In the case of the coin exchange unit 230, the dapp token 20 is exchanged for the key coin 10 according to the set exchange rate, so that the user can exchange the dapp token 20 paid as a fee according to the exchange rate. have.

In the case of the exchange rate between the Dapp token 20 and the predetermined key coin 10, it is preferable to change it periodically using the reference price for the predetermined key coin 10 as a reference.

The DApp user fee transaction system through setting the coin exchange rate according to the present invention may include a rewarding unit (400).

As shown in FIG. 8 , in the case of the rewarding unit 400 , compensation may be provided to a plurality of depositors at a predetermined ratio to the deposit amount according to the deposit amount of the key coin deposited by the plurality of depositors.

In the case of the key coin 10 provided as a reward, it may be compensated in proportion to the deposit deposited by the depositors, or may be compensated according to a preset ratio.

In addition, the key coin 10 paid as a reward may be stored and stored in the personal accounts of a plurality of depositors who receive the reward.

In addition, a plurality of depositors who have deposited the key coin 10 can purchase the DApp token 20 paid as a fee by the user at a discounted price through the deposit of the predetermined key coin 10.

The compensation amount for a predetermined key coin 10 provided as a reward may be paid based on, for example, the key coin 10 deposited by a plurality of depositors, and the reward amount or reward ratio may be block It can also be compensated according to the criteria presented on the chain platform.

In the case of the fee amount for the fee according to the use of blockchain platform resources of the DApp user fee trading system through the coin exchange rate setting according to the present invention, it can be determined through Congress.

Members constituting the council are preferably composed of a plurality of depositors who have deposited a predetermined key coin 10, and the voting right for decision-making is determined based on the deposit for the predetermined key coin 10 deposited may be

For example, when a predetermined key coin 10 is deposited with 1 coin, 1 voting right may be provided, and one voting right may correspond to one vote on the blockchain platform.

In addition, it is desirable that DApps on the blockchain platform be operated by node operators and are provided to users, but inspection and approval of the DApps will follow through members of the council, and through approval, finally, the authority to operate the DApps will be provided. can

In addition, the node operator who operates the DApp can provide collateral necessary for node operation to prevent fraudulent behavior and disruption of the ecosystem on the blockchain platform when operating the node to the node operator.

The scope of the rights of the present invention is determined by the matters described in the claims, and parentheses used in the claims are not written for selective limitation, but are used for clear components, and descriptions in parentheses are also interpreted as essential components. It should be.

Claims

In a system that sets and presents fees for the use of certain services on a blockchain platform,

A deposit unit in which a predetermined key coin is deposited and the predetermined key coin is stored;

an exchange unit that sets a standard price of the predetermined key coin and sets an exchange rate of the predetermined key coin with a DApp token; and

Dapp user fee trading system through setting a coin exchange rate, characterized in that it includes a charging unit requesting the fee of the Dapp token corresponding to the predetermined key coin to a user using a predetermined service.
The method of claim 1, wherein the deposit unit,

a coin depositing unit in which the key coin is deposited; and

Dapp user fee trading system through setting a coin exchange rate, characterized in that it comprises a coin storage unit for storing the key coin deposited in the coin deposit unit.
The method of claim 2, wherein the exchanging unit,

a price setting unit for setting a standard price of the predetermined key coin; and

Dapp user fee trading system through coin exchange ratio setting, characterized in that it comprises an exchange ratio setting unit for setting an exchange ratio between the predetermined key coin and the dapp token.
The method of claim 3, wherein the price setting unit,

Dapp user fee trading system through coin exchange rate setting, characterized in that the reference price for the predetermined key coin is presented through the agreed price presented from a preset external server.
The method of claim 4, wherein the exchange rate setting unit,

Dapp user fee trading system through coin exchange ratio setting, characterized in that the exchange ratio for the predetermined key coin and the Dapp token is set by a preset node.
The method of claim 1, wherein the charging unit,

a use requesting unit which obtains a use request of the predetermined service from the user; and

When the user's use request is received, a fee presentation unit for presenting the fee corresponding to the use request to the user, characterized in that it comprises a DApp user fee trading system through setting a coin exchange rate.
The method of claim 6, wherein the fee presentation unit,

Present the fee corresponding to the DApp token held by the user,

The fee is

Dapp user fee trading system through setting a coin exchange ratio, characterized in that the fee for the Dapp token corresponding to the base price of the predetermined key coin is presented according to the exchange ratio.
The method of claim 7, wherein the fee,

Dapp user fee trading system through setting a coin exchange rate, characterized in that the fee information of the Dapp token is set at a predetermined time interval from the reference price of the predetermined key coin and presented to the user.
The method of claim 1, wherein the exchanging unit,

Dapp user fee trading system through setting a coin exchange rate, characterized in that it further comprises a coin exchange unit for exchanging the Dapp token paid by the user as a fee with the predetermined key coin according to the exchange rate.
The method of claim 1, wherein the system,

Dapp user fee trading system through setting a coin exchange rate, characterized in that it further comprises a rewarding unit that compensates the plurality of depositors at a predetermined ratio to the deposit amount according to the deposit amount of the key coin of the plurality of depositors.