KR102111711B1 - Method for providing blockchain and escrow based crowdfunding service - Google Patents

Abstract

Blockchain and escrow-based crowdfunding service provision method is provided.When project proposal terminal creates an escrow platform-based account and inputs project data, uploading project data to the escrow platform, corresponding to the funding amount included in the project data Issuing a plurality of tokens, and generating digital voting rights corresponding to the plurality of tokens, funding investments from at least one investor terminal and granting tokens and digital voting rights corresponding to the investments to at least one investor terminal, Voting for at least one step-by-step roadmap included in the project data, and when voting rights are exercised from at least one investor terminal, granting tokens corresponding to the exercised voting rights to at least one investor terminal, and responding to voting rights And delivering the investment money to the project proposal terminal.

Description

Method of providing blockchain and escrow-based crowdfunding services{METHOD FOR PROVIDING BLOCKCHAIN AND ESCROW BASED CROWDFUNDING SERVICE}

The present invention relates to a method for providing a cloud and escrow-based crowdfunding service, and provides a method for providing a distributed application that assists crowdfunding in the form of an escrow on the blockchain.

Recently, there are increasing cases of Token Sale or Coin Sale to raise funds for carrying out the project in the early stages of development.However, the first coin release or ICO (Initial Coin Offering) ). Currently, a number of virtual currencies or tokens are being developed, and venture capitals that are fast-acting are acting as a source of funds for development in this field, and funding through ICOs continues to grow in size and ventures. It turned out that it was ahead of the scale of fund raising through capital.

At this time, as a safe transaction method for fundraising and investment, a method using escrow has been researched and developed. In this regard, in Korean Patent Publication No. 2017-0108903 (published on September 27, 2017), the In accordance with the delegation of fund management, it manages whether funds are transferred or paid to the operator's bank account, and authorizes the operator to approve and manage the transfer and withdrawal of bank account funds to the escrow management company. In response, the escrow management company has approved the transfer or payment in accordance with the escrow system to protect the investor from requesting transfer or payment for the investment of the investor deposited in the bank account of the operator.

However, ICO is a phenomenon in which the development of blockchain technology and social network services (SNS) naturally infiltrated into the realm of the capital market. Although it is in the spotlight as a center, investment fraud through similar ICOs and hacking of ICO fundraising is becoming a social problem that transcends borders, and hacking into the DAO project and the resulting $50 million Ether takeover In the case of investor protection, the case removes the security vulnerability of issuance of virtual currency and financing through ICO, and crowdfunding is conducted through a centralized broker, which complicates a large number of transaction participants and procedures, and has a client-server structure. It has become an opportunity to recognize the need to deal with the problem of increasing security and transaction costs for defense against external threats such as hacking.

According to an embodiment of the present invention, by implementing an escrow platform based on a blockchain, security vulnerabilities are eliminated, transaction participants are reduced to increase transaction costs of centralized crowdfunding, and security and transparency are ensured while distributed applications are implemented. By using it, it is possible to implement a voluntary and automated platform of network participants, and to provide a method of providing blockchain and escrow-based crowdfunding services that can increase the matching between investors and proposers to reduce transaction costs. However, the technical problem to be achieved by the present embodiment is not limited to the technical problem as described above, and other technical problems may exist.

As a technical means for achieving the above-described technical problem, an embodiment of the present invention, when the project proposal terminal creates an escrow platform-based account and inputs the project data, uploading the project data to the escrow platform, the project data Issuing a plurality of tokens corresponding to the included funding amount, and generating a digital voting right corresponding to the plurality of tokens, at least one investor receives an investment fund from at least one investor terminal and a token and a digital voting right corresponding to the investment amount Step of granting to the terminal, voting for at least one step-by-step roadmap included in the project data, and when voting rights are exercised from at least one investor terminal, tokens corresponding to the exercised voting rights are given to at least one investor terminal And transmitting the investment money corresponding to the right to vote to the project proposal terminal.

According to any one of the above-described problem solving means of the present invention, it is possible to reduce transaction participants by simplifying the nodes of the blockchain with investors, project proponents, and escrow systems, and by making the project participants use the escrow platform voluntarily. This decrease can create diverse and competitive projects, and provides reliable accumulation of funding success data as statistical data to discover trusted professional investors, and discloses project proponent achievement to foster healthy entrepreneurs to create a transparent crowdfunding ecosystem. It is possible to provide the intangible value of reliability to the participants who created it.

1 is a view for explaining a blockchain and escrow-based crowdfunding service providing system according to an embodiment of the present invention.
2 is a block diagram illustrating a crowdfunding service providing server included in the system of FIG. 1.
3 is a diagram for explaining an embodiment in which a blockchain and escrow-based crowdfunding service according to an embodiment of the present invention is implemented.
FIG. 4 is a diagram illustrating a process in which data is transmitted and received between each of the components included in the blockchain and escrow-based crowdfunding service providing system of FIG. 1 according to an embodiment of the present invention.
5 is an operation flowchart for explaining a method of providing a blockchain and escrow-based crowdfunding service according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . Also, when a part is said to "include" a certain component, it means that the component may further include other components, not exclude other components, unless specifically stated otherwise. However, it should be understood that the existence or addition possibilities of numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

The terms "about", "substantially", and the like used throughout the specification are used in or at a value close to the value when manufacturing and substance tolerances unique to the stated meaning are given, and the understanding of the present invention. To aid, accurate or absolute figures are used to prevent unscrupulous use of the disclosed disclosure by unscrupulous infringers. The term "~(step)" or "step of" as used in the entire specification of the present invention does not mean "step for".

In the present specification, the term “unit” includes a unit realized by hardware, a unit realized by software, and a unit realized by using both. Further, one unit may be realized using two or more hardware, and two or more units may be realized by one hardware.

In the present specification, some of the operations or functions described as performed by the terminal, the device, or the device may be performed instead on a server connected to the corresponding terminal, device, or device. Similarly, some of the operations or functions described as being performed by the server may be performed in a terminal, apparatus, or device connected to the corresponding server.

In this specification, some of the operations or functions described as mapping or matching with the terminal means that the unique number of the terminal or identification information of the individual, which is identification data of the terminal, is mapped or matched. Can be interpreted as

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining a blockchain and escrow-based crowdfunding service providing system according to an embodiment of the present invention. Referring to FIG. 1, the blockchain and escrow-based crowdfunding service providing system 1 may include a project proposal terminal 100, a crowdfunding service providing server 300, and at least one investor terminal 400. have. However, the block chain and escrow-based crowdfunding service providing system 1 of FIG. 1 is only an embodiment of the present invention, and thus the present invention is not limitedly interpreted through FIG. 1.

At this time, each component of FIG. 1 is generally connected through a network (network, 200). For example, as shown in FIG. 1, the project proposal terminal 100 may be connected to the crowdfunding service providing server 300 through the network 200. In addition, the crowdfunding service providing server 300 may be connected to the project proposal terminal 100 and at least one investor terminal 400 through the network 200. In addition, the at least one investor terminal 400 may be connected to the crowdfunding service providing server 300 through the network 200.

Here, the network means a connection structure capable of exchanging information between each node, such as a plurality of terminals and servers, and examples of such a network include RF, 3GPP (3rd Generation Partnership Project) network, and LTE (Long Term) Evolution network, 5GPP (5rd Generation Partnership Project) network, World Interoperability for Microwave Access (WIMAX) network, Internet, Local Area Network (LAN), Wireless Local Area Network (LAN), Wide Area Network (WAN) , PAN (Personal Area Network), Bluetooth (Bluetooth) network, NFC network, satellite broadcasting network, analog broadcasting network, DMB (Digital Multimedia Broadcasting) network, and the like.

In the following, the term at least one is defined as a term including singular and plural, and even if the term at least one does not exist, each component may exist in singular or plural, and may mean singular or plural. It will be self-evident. In addition, it may be said that each component is provided in a singular or plural form, depending on the embodiment.

Hereinafter, crowdfunding according to an embodiment of the present invention is defined as a term including all concepts of different terms for each project of ICO (Initial Coin Offering). At this time, the crowdfunding is coin sale, coin pre sale, crowd sale, token sale, token launching, crowd funding, It will be defined as a term that includes both the concept of fundraising and the method of financing in the primary market of coin or token.

The project proposal terminal 100 may be an idea proposer, a startup company, etc. that is invested in crowdfunding using web pages, app pages, programs, or applications related to blockchain and escrow-based crowdfunding services, but the subject of the funding request, There are no restrictions on the subject of financing and its use. In addition, the project proposal terminal 100 selects a road map of the project, that is, a progress goal or a development goal for each step, and the necessary funds for each step, the ratio of funds for each step to the total funding amount, the contents of the project, the step of the project It may be a terminal that creates various information to collect investors, including achievement information, and transmits it to the crowdfunding service providing server 300. Then, the project proposal terminal 100 requests the issuance of a token and the issuance of a digital voting right according to the roadmap for each step, and when a predetermined ratio is set in at least one investor terminal 400, for example, a majority of the number is applied to the corresponding roadmap. It may be a terminal that receives a corresponding fund. This process is repeated until the final roadmap progresses, and various contract conditions or investments may be changed. If there are many votes against the progression of the roadmap, the project proposal terminal 100 provides the reason for the crowdfunding service providing server 300 It may be a terminal receiving feedback from ), or a terminal modifying a road map based on the feedback received and requesting the voting again.

Here, the project proposal terminal 100 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, navigation, a laptop equipped with a web browser (WEB Browser), a desktop, a laptop, and the like. At this time, the project proposal terminal 100 may be implemented as a terminal capable of accessing a remote server or terminal through a network. The project proposal terminal 100 is, for example, a wireless communication device in which portability and mobility are guaranteed, navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS ( Personal Handyphone System (PDA), Personal Digital Assistant (PDA), International Mobile Telecommunication (IMT)-2000, Code Division Multiple Access (CDMA)-2000, W-Code Division Multiple Access (W-CDMA), Wireless Broadband Internet (Wibro) terminal , All kinds of handheld-based wireless communication devices such as a smart phone, a smart pad, and a tablet PC may be included.

The crowdfunding service providing server 300 may be a server that provides a blockchain and escrow-based crowdfunding service web page, app page, program, or application. In addition, the crowdfunding service providing server 300 may be a server that receives project data from the project proposal terminal 100 and conducts announcements or promotions to recruit investors to invest in the project. In addition, the crowdfunding service providing server 300 generates digital voting rights and tokens corresponding to the deposited investment, when creating an account at least one investor terminal 400 or depositing an investment using an account already held. However, the initial value of the token may be set to 0 to be a server assigned to an account. At this time, the crowdfunding service providing server 300, the voting proceeds every time at least one step of forming the roadmap proceeds, for example, if more than a majority of the project proposal to fund the investment to run the roadmap corresponding to the stage It may be a server that pays to the terminal 100. At this time, the roadmap is defined as a plurality of step-by-step projects constituting the project. And, the crowdfunding service providing server 300 is a server that requests feedback on the reason for objection to the investor terminal 400 that has not exercised a voting right, collects it when a response is received, and delivers it to the project proposal terminal 100 Can be In addition, the crowdfunding service providing server 300, for example, if the roadmap step does not proceed because the majority is not over, the liquidation procedure for refunding the investment to the at least one investor terminal 400 that funded the investment It proceeds, but the token that has been granted may be a server that maintains it. In addition, the crowdfunding service providing server 300 proceeds with the liquidation procedure even for the investor terminal 400 who has not opted, that is, has not exercised a voting right, even if the corresponding roadmap step is in progress, at this time, the token granted still has a value of 0. Since it is initialized, even if you have a token, its value may not be recognized. In addition, the crowdfunding service providing server 300 may issue a token corresponding to the digital voting right, and the voting right may be set based on the funding amount, not based on the number of people, but it is obvious that the present invention is not limited thereto. . In addition, the crowdfunding service providing server 300 may be a server for securing a security system and integrity by forming an independent node of the blockchain based on the escrow platform.

Here, the crowdfunding service providing server 300 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, navigation, a laptop equipped with a web browser (WEB Browser), a desktop, a laptop, and the like.

The at least one investor terminal 400 may be an investor terminal using a web page, app page, program, or application related to blockchain and escrow-based crowdfunding services. In addition, the at least one investor terminal 400 may be an investor terminal that selects any one or a plurality of projects and deposits an investment amount. Further, the at least one investor terminal 400 may be a terminal that receives a digital voting right corresponding to the investment amount and a token initialized to 0 through the crowdfunding service providing server 300. And, at least one investor terminal 400 is a terminal that transmits a vote of affirmation by voting to the crowdfunding service providing server 300 when a vote notification is generated for each stage of the roadmap, or by sending a vote of votes by not voting. Can be At this time, the at least one investor terminal 400, in the latter case, sends feedback on the reason for objection to the crowdfunding service providing server 300, and proceeds with the liquidation procedure to receive the refund of the investment. In both cases, for example, if the corresponding roadmap step does not proceed because the majority is not over, at least one investor terminal 400 is also refunded through a liquidation procedure. Tokens may still be retained.

Here, the at least one investor terminal 400 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, navigation, a laptop equipped with a web browser (WEB Browser), a desktop, a laptop, and the like. At this time, the at least one investor terminal 400 may be implemented as a terminal capable of accessing a remote server or terminal through a network. The at least one investor terminal 400 is, for example, a wireless communication device in which portability and mobility are guaranteed, navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), Personal Handyphone System (PHS), Personal Digital Assistant (PDA), International Mobile Telecommunication (IMT)-2000, Code Division Multiple Access (CDMA)-2000, W-Code Division Multiple Access (W-CDMA), Wireless Broadband Internet ) It may include all kinds of handheld-based wireless communication devices such as a terminal, a smartphone, a smartpad, and a tablet PC.

FIG. 2 is a block diagram illustrating a crowdfunding service providing server included in the system of FIG. 1, and FIG. 3 illustrates an embodiment in which a blockchain and escrow-based crowdfunding service according to an embodiment of the present invention is implemented It is a figure for illustration.

Referring to FIG. 2, the crowdfunding service providing server 300 includes an upload unit 310, a generation unit 320, a grant unit 330, a token management unit 340, a delivery unit 350, and a feedback unit 360 ), and a refund unit 370.

A crowdfunding service providing server 300 or another server (not shown) operating in conjunction with a project proposal terminal 100 and at least one investor terminal 400 according to an embodiment of the present invention is based on blockchain and escrow When transmitting a crowdfunding service application, program, app page, web page, etc., the project proposal terminal 100, and at least one investor terminal 400, a blockchain and escrow-based crowdfunding service application, program, app page , Can install or open web pages, etc. In addition, the service program may be driven in the project proposal terminal 100 and at least one investor terminal 400 using a script executed in a web browser. Here, the web browser is a program that enables the use of the world wide web (WWW) service, and refers to a program that receives and displays hypertext described in a hypertext mark-up language (HTML), for example, Netscape. , Explorer, Chrome, and the like. Further, the application means an application on the terminal, and includes, for example, an app that is executed on a mobile terminal (smartphone).

Referring to FIG. 2, the upload unit 310 may upload the project data to the escrow platform when the project proposal terminal 100 creates an escrow platform-based account and inputs project data. At this time, the project data may include at least one or at least one combination of project information, at least one step-by-step roadmap, step-by-step funding ratio, step-by-step achievement information, and funding amount, but various elements are not limited to the above. It is obvious that can be added or subtracted. Through this, the crowdfunding at the initial stage of the project can be secured by the promoter, that is, the project proponent's position, and at the same time, the public support can be confirmed, and the coins or tokens generated in the blockchain are total. Since the amount distributed through open recruitment compared to the issued amount and the amount of the project proponents are transparent on the blockchain in real time, the current distribution ratio of coins or tokens can be quickly disclosed to the market, and the market price through this is affected. This can be done, and the technical aspect of the blockchain solves the problem of disclosure, which is necessary in the issuance market and distribution market of securities such as IPO.

The generator 320 may issue a plurality of tokens corresponding to the funding amount included in the project data, and generate digital voting rights corresponding to the plurality of tokens. In other words, securities crowdfunding is similar to crowdfunding in that it raises funds directly using Internet media and issues securities as a counter-payment or evidence of investment, and at the same time, participation from a large number of unspecified investors takes place. It is similar in that the investment is made at the development stage at the idea level, but the characteristic is that securities crowdfunding issues equity securities, debt securities, and investment contract securities in the manner of fund raising, while crowdfunding issues coins or tokens. There is an essential difference in that it does. Also, in crowdfunding, the concept of an intermediary for raising funds is not essential, there are no restrictions on the companies to be issued, and there are no restrictions on funding limits.

At this time, the digital voting right of the present invention may be issued at a rate equal to the funding amount. For example, assuming that 100 digital voting rights per 100 bitcoins and 100 tokens are issued, and the invested amount (funding amount) is 1 bitcoin, 100 digital voting rights and 100 tokens are received. The value of the token can be issued with 0 set. At this time, the total amount of digital voting rights and tokens is kept constant. For example, if 10 digital voting rights are exercised, 90 digital voting rights and 10 tokens are held, and 100 digital voting rights are all exercised. It is a form that holds two tokens. That is, the token was initially set to 0, but whenever one vote is exercised, the funding amount (1/100 bitcoin) corresponding to one vote can be converted into one token. Accordingly, the investor holds the tokens of the corresponding project as much as the voting rights are exercised, and it is held in the form of equity as a digital asset. However, it will be clear that the liquidation does not exclude the case of refunding the funding amount without holding the token.

The granting unit 330 may receive an investment fund from at least one investor terminal 400 and grant tokens and digital voting rights corresponding to the investment money to the at least one investor terminal 400. At this time, the investment may be cryptocurrency, for example, Bitcoin or Ethereum, and liquid assets including cash are also possible. In addition, the token corresponding to the investment money may mean the standardized Erc20 token when Ethereum is selected as a blockchain. The token meaning in one embodiment of the present invention may include a token as proof of investment, and may include a virtual currency or a crypto currency. In addition, it may be a concept that may include all of virtual coins, virtual tokens, virtual currencies, and virtual currency exchanges that are issued from distributed nodes and serve as intermediaries of transactions. It can include both the concept of a currency and the concept of a virtual token with a trusted third party that has a issuer and is issued centrally. Of course, coin refers to virtual currency or crypto currency, but sometimes it is distinguished in the strict sense because it refers to the developed technology itself before taking on the nature of currency. In one embodiment of the invention it is defined in the same sense. In addition, when the investment is funded by the granting unit 330, a virtual currency such as Bitcoin or Ether can be secured from an investor by designating a contract address for raising a specific virtual currency. In other words, investors will send the virtual currency to the address of the project proponent or crown funding service providing server 300, and tokens can be automatically distributed by issuing tokens to the wallet address of the participant at the same time as raising funds. The state doesn't need a complicated process.

The token management unit 340 votes for at least one step-by-step roadmap included in the project data, and when a voting right is exercised from at least one investor terminal 400, the token corresponding to the exercised voting right is at least one investor. It can be given to the terminal 400. When the token management unit 340 funds the investment money from at least one investor terminal 400 and grants tokens and digital voting rights corresponding to the investment money to the at least one investor terminal 400, the tokens are initialized to zero. When issued and voting rights are exercised, tokens corresponding to the exercised voting rights are given as an opposite benefit, and the voting rights of at least one investor terminal 400 may be reduced by the exercised voting rights.

The delivery unit 350 may transmit the investment money corresponding to the voting right to the project proposal terminal 100. At this time, the issuer of the coin or token, that is, the project proponent may take the form of a direct coin offering to collaborate on the coin and token against the direct investor without the help of an intermediary, which will proceed based on blockchain technology. Can. In addition, crowdfunding, virtual currency raising and token issuance and transmission of all processes can be automated through computer program code, but it is not possible to automate according to the project team's technology or project progress rate. It does not exclude the case of proceeding. In addition, a series of processes for raising virtual currencies from participants networked on the Internet can be conducted using web pages or decentralized applications, and the concept of a smart contract will act as a key element. Can. At this time, the smart contract allows a series of processes related to token issuance to be executed on the blockchain.

The token management unit 340 votes for at least one step-by-step roadmap included in the project data, and when a voting right is exercised from at least one investor terminal 400, the token corresponding to the exercised voting right is at least one investor. When granting to the terminal 400, if the voting right is not exercised from at least one investor terminal 400, it is calculated as a counter vote corresponding to the proportion of the voting rights held as much as the proportion of the stage in which voting for the total funding proceeds, The reason for selecting the objection from at least one investor terminal 400 that has not exercised the voting right is received through the escrow platform, and the liquidation procedure for the investment amount corresponding to the objection vote can be performed.

For example, it is assumed that the total funding amount is 10 bitcoins, and the ratio of the roadmap of the first stage, that is, the amount of money required to proceed with the first stage of the roadmap is 10 percent because of one bitcoin. In addition, it is assumed that Investor A has invested 1 bitcoin, and voted against the roadmap of the first stage by not voting, and 100 digital voting rights are given to 1 bitcoin. At this time, it can be calculated that 100 voting rights X (1 bitcoin (1st stage)/10 bitcoin (previous stage)) = 10 votes were exercised. Of course, it will be apparent that it can be modified or changed in various ways in addition to the above-described calculation method.

The feedback unit 360 receives the reason for selecting the objection from at least one investor terminal 400 that has not exercised the voting right in the token management unit 340 through the escrow platform, accumulates and collects the reason for selecting the objection, It may be fed back to the project proposal terminal 100.

Refund unit 370, the token management unit 340 to vote for at least one step-by-step roadmap included in the project data, if the voting rights are exercised from at least one investor terminal 400, corresponding to the exercised voting rights After granting the token to at least one investor terminal 400, if the vote for at least one step-by-step roadmap does not satisfy a preset progress criterion, it is possible to stop funding and proceed with liquidation of the roadmap for the step in which the vote was made. have. Then, the refund unit 370 may refund the investment money corresponding to the voting right to at least one investor terminal 400 that has exercised the voting right.

Continuing to cite the above example, 100 voting rights are required to collect 1 bitcoin required in step 1. In this case, assuming that 51 voting rights are opposite votes and 49 voting rights are affirmative votes, the roadmap of the first stage may not proceed. The majority is for example only and is not limited thereto. Investors who exercised 49 votes in favor have already been given tokens, but since they lost their right to vote in opposition to this, they must proceed with liquidation procedures and reimbursement for lost votes, and investors who exercised 51 votes in voting have not lost their votes Since the investment has not been made, it is necessary to proceed with liquidation. However, it will be apparent that the method is not limited to the above-described method, and it is also possible to use a method of issuing a digital voting right or issuing a token in a different manner or proceeding in a total finishing stage without performing liquidation in each step.

On the other hand, at least one investor terminal 400, the crowdfunding service providing server 300, and the project proposal terminal 100 are connected by forming an independent node equal to each subject based on a decentralized application model, and are independent. Nodes can be connected to a blockchain including account data, contract code, p2p storage, and p2p messaging.

The crowdfunding service providing server 300 votes for at least one step-by-step roadmap included in the project data in the token management unit 340, and when the voting rights are exercised from at least one investor terminal 400, the voting rights exercised After granting the token corresponding to the at least one investor terminal 400, at least one node included in the blockchain network executes and validates the distributed consensus protocol including validity, integrity, consent, and termination for token grant and , It can encrypt the verified transaction through data integrity verification and transaction non-repudiation algorithm, and replicate, share, and synchronize the transaction verified and encrypted with the distributed consensus protocol.

The original technology of the blockchain can be seen as a consensus mechanism between network participants, and its characteristics are separated according to public and private blockchains, and the electronic blockchain's consensus mechanism is proof of work that relies on computing power (PoW : Proof of Work), Proof of Stake (PoS) dependent on the amount of cryptocurrency held, Delegated Proof of Stake (DPoS), which is a method of constructing a kind of National Assembly by reputation and voting. A representative example of a private blockchain consensus method may include a PBFT (Practical Byzantine Fault Tolerance) method, which is a solution to the general Byzantine problem. In addition, the block chain according to an embodiment of the present invention is based on a P2P network with TTP removed, and reliability technology is applied. Reliability means immutability of books between network participants who do not trust each other. That is, it guarantees data integrity, and provides confidentiality, authentication, integrity, and non-repudiation services.

At this time, although the issue of investor protection in crowdfunding is not as great as in the case of securities offering, the issue of investor protection is still an important issue, especially in the case of small and medium-sized SMEs, which are highly risked by companies that raise funds, and in the early stages of investment fraud or continuous investment failure. Since there may be a significant impediment to the development of crowdfunding, investor protection should be provided within a range that does not inhibit the fundraising itself by crowdfunding. Accordingly, by using the escrow platform in one embodiment of the present invention, the investment funds of the investors are strictly managed so that the subscription funds are not stakeholders such as public offering companies or brokers, but escrow through a trusted third party institution such as a financial company. It can be managed through the system.

In addition, crowdfunding according to an embodiment of the present invention, in addition to the above-mentioned types, contains a right to exchange at a certain rate when a new coin is issued, and a token that is expected to disappear when the coin is distributed in the future, In many cases, it may include tokens that hold authority for a general business or project, such as the right to receive dividends, the right to participate in organizational governance, the right to vote, and the right to use facilities. At this time, each token may have a due date.

Hereinafter, an operation process according to the configuration of the crowdfunding service providing server of FIG. 2 will be described in detail with reference to FIG. 3 as an example. However, the embodiment is only one of various embodiments of the present invention, it will be apparent that it is not limited thereto.

Referring to FIG. 3, (a) each node including the crowdfunding service providing server 300 is a distributed application model, and is composed of connection of each independent node different from the server-client model. The independent node is for all parties participating in the network, and the distributed application browser, which is the front end, is implemented similarly to the existing web page, but the backend is provided with account data, contract code, p2p storage and It is implemented as a connected blockchain by including messaging. First, (a) the project proposal terminal 100 transmits the project to the crowdfunding service providing server 300. At this time, in the escrow platform of the crowdfunding service providing server 300, voluntary participation and decision-making by investors and project proponents is determined by an agreement by investors. In addition, the expert who knows the project best, except the project proponent, is a group of investors, and the collective intelligence is composed of the core of the process, and all data is maintained as a blockchain, decentralized autonomous organization that ensures transparency and security. Implement the platform.

(b) At least one investor terminal 400 creates an account using a distributed application browser, accesses the crowdfunding service providing server 300, selects a desired project from the project proposer list, and provides information about the project proposer and Check the details of the project contents, roadmap, funding scale and funding ratio for each stage, and achievement information for each stage of the project, and transmit investment decisions to the crowdfunding service providing server 300, and (c) digital corresponding to the project. Voting rights and tokens corresponding to the stakes of the project can be obtained.

On the other hand, the project proposal terminal 100 also creates an account using a distributed application browser, accesses the crowdfunding service providing server 300, and provides detailed information of the project for crowdfunding and information of the proposer according to the platform protocol. Fill in the back, and request the platform to issue electronic voting rights and digital assets tokens equal to the total funding amount. The blockchain-based crowdfunding service providing server 300 makes an electronic voting right according to the funding amount and a token that is a digital asset of the same amount at the request of the project proposal terminal 100, and determines the investment of at least one investor terminal 400 It freezes until a request for issuance is made, and when the investment money of at least one investor terminal 400 is deposited in the crowdfunding service providing server 300, a voting right and a token are issued as much as the amount. At this time, the allowable range of tokens is as much as the voting rights, and the initial value is issued with 0. The above process is performed within the period requested by the project proposal terminal 100.

(d) If the project proposal terminal 100 reaches a step according to the roadmap described in advance in the crowdfunding service providing server 300, the voting period is set and requested. The crowdfunding service providing server 300 performs an active alarm to at least one investor terminal 400 and informs the start and duration of voting. In the at least one investor terminal 400, when an investor accesses through a browser, the start and duration of voting are announced on the first page.

(e) When the voting right is transmitted from the investor terminal 400 to the crowdfunding service providing server 300 within the voting period, the project tokens of that amount are returned. (f) At this time, as a result of the voting, if the predefined total amount is 50.00% or more, for example, the crowdfunding service providing server 300 delivers the funding fund to the project proposal terminal 100 to proceed with the project, and if it is less than 50.00% To proceed with the liquidation procedure to stop the funding, at the request of the at least one investor terminal 400, refund the investment amount corresponding to the voting right, and the at least one investor terminal 400 is a digital asset token issued by the project proponent This remains.

Investors who do not express their intention within the voting period will be regarded as the opposite of the percentage of the voting rights held by the current project as a percentage of the total funding recorded at the time of proposal. Investors who oppose the vote can go through the liquidation process. However, after the opposite reason is entered into the crowdfunding service providing server 300 to help improve the project, liquidation is performed. When the crowdfunding service providing server 300 successfully ends the crowdfunding, an investment success number is accumulated in the investor's account and a reliable investor can be generated, and an investment success number is also accumulated in the project proponent's account. It can be expressed as a sincere entrepreneur. That is, data generated due to the action is returned to the network participants. All data is made on a blockchain basis and distributed to each participant to form a crowdfunding market that ensures data integrity.

In summary, when the project proposal terminal 100 enters the project's funding scale and the corresponding stake size, roadmap and funding rate, voting period, and details of the project and the project proponent into the escrow platform, enters into the project list, crowdfunding service The providing server 300 secures issuance of tokens, which are digital assets equal to the size of the shares, according to the inputted information, generates digital voting rights accordingly, freezes until the participation of investors, and prepares for investment. In addition, the crowdfunding service providing server 300 selects a specific project from among a plurality of projects from the investor terminal 400, inputs investment money, and receives tokens, which are voting rights and tokens of the project set to an initial value of 0, accordingly. Receiving a command to reach the voting period according to the roadmap from the project proposal terminal 100 and notifying and managing the voting to the investors, and the investor terminal 400 receives the alarm and exercises the voting rights by the project stage within the period determined by the project proponent. In the form of not acquiring tokens or participating in voting, the project is improved by opposing, funding, freezing, and creating the cause for this and feeding it back through the escrow platform. Finally, the crowdfunding service providing server 300 collects votes and decides whether or not the project is in progress, transfers the funds to the project proposal terminal 100, or refunds it to the investor terminal 400, and invests the token of the project It is distributed to the terminal 400, and a project implementation and liquidation step of recording and delivering the project results to each participant is performed. At this time, depending on the outcome of the project, project participants acquire and liquidate funding funds or tokens that are digital assets, and build a credibility of each participant by applying success accumulation upon completion of the project, and use this to influence the future project It is possible to create a crowdfunding ecosystem by deriving and reflecting it in the account of the participants.

Accordingly, the present invention, the central record institution, investment listing management institution, depository institutions, securities companies, etc., there are a number of trading participants, transaction costs increase, and when investors approach brokers, open accounts in affiliated financial institutions, There are procedural barriers to entry, such as the need to open an account in the reservation payment center, and 3,000 companies with only a small portion of the total market information held by crowdfunding brokerage companies are registered, and the investment value In order to solve the problems of the market, which does not have the expertise to select high companies and has weak competitiveness even in the field of investing companies, by providing a blockchain-based crowdfunding platform, investors, project proponents and blockchain-based escrow systems It can be simplified to reduce the number of trading participants, and the project participants voluntarily use the escrow platform to reduce the intermediary's scope so that diverse and competitive projects can emerge. In addition, by measuring the cumulative degree of the success of funding, it is possible to discover trusted professional investors, foster healthy entrepreneurs through the achievement of project proponents, and create a transparent crowdfunding ecosystem, and the data is called trustworthiness. It can provide intangible value.

2 and 3, the block chain and the escrow-based crowdfunding service providing method is not described, the same or the same as described above with respect to the block chain and the escrow-based crowdfunding service providing method through FIG. Since it can be easily inferred from the contents, the following description will be omitted.

4 is a diagram illustrating a process in which data is transmitted and received between each of the components included in the blockchain and escrow-based crowdfunding service providing system of FIG. 1 according to an embodiment of the present invention. Hereinafter, an example of a process in which data is transmitted and received between each of the components will be described with reference to FIG. 4, but the present application is not limited to such an embodiment, and is illustrated in FIG. 4 according to various embodiments described above. It is apparent to those skilled in the art that the process of transmitting and receiving data can be changed.

Referring to FIG. 4, when the crowdfunding service providing server 300 receives project data from the project proposal terminal 100 (S4100), it recruits and publicizes the investors (S4200), and at least one investor Receive account creation and investment funding from the terminal 400 (S4300), and start to proceed with the roadmap (S4400).

At this time, the crowdfunding service providing server 300 informs the start of voting to at least one investor terminal 400 (S4500), collects responses thereto (S4510), and teaches the pros and cons of whether or not voting rights have been exercised. It becomes (S4600). At this time, if the voting rights are exercised, the votes so far and the preset ratio are compared (S4700), and if the predetermined ratio is satisfied, the project is carried out (S4730), otherwise the liquidation procedure is performed ( S4710). Then, this process is repeated until all roadmaps are finished (S4790, S4800), and when the project is performed, the crowdfunding service providing server 300 delivers the investment money to the project proposal terminal 100 (S4700), and the investor To the terminal 400, the token value is changed and assigned (S4750).

Meanwhile, in step S4600, the crowdfunding service providing server 300 requests the feedback to the investor terminal 400 that has not exercised voting rights (S4900), and inputs feedback from the investor terminal 400 to provide the crowdfunding service providing server 300 ), the liquidation process is performed (S4710), and the investment is refunded (S4920). The collected feedback is collected from the crowdfunding service providing server 300 and transmitted to the project proposal terminal 100 (S4930).

The order between the above-described steps (S4100 to S4930) is only an example, and is not limited thereto. That is, the order between the above-described steps (S4100 to S4930) may be mutually variable, some of which may be executed or deleted simultaneously.

Such a block chain and escrow-based crowdfunding service providing method of FIG. 4 is not described or the same as described above with respect to a block chain and escrow-based crowdfunding service providing method through FIGS. 1 to 3 Since it can be easily inferred from the contents, the following description will be omitted.

5 is an operation flowchart for explaining a method of providing a blockchain and escrow-based crowdfunding service according to an embodiment of the present invention. Referring to FIG. 5, the crowdfunding service providing server creates an escrow platform-based account in the project proposal terminal and inputs project data, and uploads project data to the escrow platform (S5100).

Then, the crowdfunding service providing server issues a plurality of tokens corresponding to the funding amount included in the project data, generates digital voting rights corresponding to the plurality of tokens (S5200), and funds investments from at least one investor terminal. To receive and grant tokens and digital voting rights corresponding to the investment money to at least one investor terminal (S5300).

At this time, the crowdfunding service providing server votes for at least one step-by-step roadmap included in the project data, and when a voting right is exercised from at least one investor terminal, the token corresponding to the exercised voting right is at least one investor terminal. To the project (S5400), and transmits the investment money corresponding to the voting rights to the project proposal terminal (S5500).

The details not described with respect to the method of providing the blockchain and escrow-based crowdfunding service of FIG. 5 are the same as or described with respect to the method of providing the blockchain and escrow-based crowdfunding service through FIGS. Since it can be easily inferred from the contents, the following description will be omitted.

The method of providing a blockchain and escrow-based crowdfunding service according to an embodiment described with reference to FIG. 5 is also implemented in the form of a recording medium including instructions executable by a computer, such as an application or program module executed by a computer Can be. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, the computer-readable medium may include any computer storage medium. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The method for providing a blockchain and escrow-based crowdfunding service according to an embodiment of the present invention described above is applied to an application basically installed in a terminal (which may include a program included in a platform or an operating system basically installed in the terminal). It may be executed by an application (ie, a program) installed by the user directly on the master terminal through an application providing server such as an application store server, an application, or a web server related to a corresponding service. In this sense, the method of providing a blockchain and escrow-based crowdfunding service according to an embodiment of the present invention described above is implemented as an application (that is, a program) basically installed in a terminal or directly installed by a user, and a computer such as a terminal. It can be recorded on a recording medium that can be read by.

The above description of the present invention is for illustration only, and those skilled in the art to which the present invention pertains can understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. do.

Claims (9)

A method for providing a crowdfunding service executed in a crowdfunding service providing server,
When the project proposal terminal creates an escrow platform-based account and inputs project data, uploading the project data to the escrow platform;
Issuing a plurality of tokens corresponding to the funding amount included in the project data, and generating a digital voting right corresponding to the plurality of tokens;
Receiving an investment fund from at least one investor terminal and granting tokens and digital voting rights corresponding to the investment money to the at least one investor terminal;
Voting for at least one step-by-step roadmap included in the project data to grant tokens corresponding to the exercised voting rights to the at least one investor terminal when voting rights are exercised from the at least one investor terminal; And
Transferring the investment money corresponding to the voting right to the project proposal terminal;
Including,
In the step of granting an investment fund from the at least one investor terminal and granting a token and a digital voting right corresponding to the investment to the at least one investor terminal, the token is issued with an initial value of 0, and the voting right is exercised. If it is, the token corresponding to the exercised voting right is given as an opposite benefit, and the voting right of the at least one investor terminal is reduced by the exercised voting right
When voting rights are exercised from the at least one investor terminal by voting for at least one step-by-step roadmap included in the project data, the step of granting tokens corresponding to the exercised voting rights to the at least one investor terminal is , If the voting right is not exercised from the at least one investor terminal, calculating a counter vote equal to the ratio of the voting rights held by the ratio of the step in which the voting proceeds to the total funding amount, at least one not exercising the voting right Receiving the reason for selecting the objection from the investor terminal through the escrow platform, accumulating and collecting the reason for selecting the objection, and feeding back to the project proposal terminal, and liquidation procedure for the investment amount corresponding to the objection table. A method of providing a crowdfunding service based on blockchain and escrow, which includes the step of proceeding.
delete delete delete According to claim 1,
After voting for at least one step-by-step roadmap included in the project data and voting rights are exercised from the at least one investor terminal, after the step of granting the token corresponding to the exercised voting rights to the at least one investor terminal on,
If the voting for the at least one step-by-step roadmap does not satisfy a preset progress criterion, stopping funding for the roadmap of the step in which the voting has been conducted and proceeding with liquidation procedures;
Refunding an investment amount corresponding to the voting right to the at least one investor terminal that has exercised the voting right;
Further comprising, a method for providing a blockchain and escrow-based crowdfunding service.
According to claim 1,
The at least one investor terminal, the crowdfunding service providing server, and the project proposal terminal are connected to each subject by forming an equal independent node based on a decentralized application model, based on blockchain and escrow. How to provide services.
The method of claim 6,
The independent node is connected to a blockchain including account data, contract code, p2p storage, and p2p messaging, a method for providing a blockchain and escrow-based crowdfunding service.
According to claim 1,
The project data includes at least one or at least one combination of project information, at least one step-by-step roadmap, step-by-step funding ratio, step-by-step achievement information, and funding scale, providing a blockchain and escrow-based crowdfunding service Way.
According to claim 1,
After voting for at least one step-by-step roadmap included in the project data and voting rights are exercised from the at least one investor terminal, after the step of granting the token corresponding to the exercised voting rights to the at least one investor terminal on,
Executing and verifying a distributed consensus protocol including validity, integrity, consent, and termination for the token grant on at least one node included in the blockchain network;
Encrypting the verified transaction through a data integrity verification and transaction non-repudiation algorithm, and replicating, sharing, and synchronizing the transaction verified and encrypted with the distributed consensus protocol on a distributed ledger;
Further comprising, blockchain and escrow-based crowdfunding service providing method.

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