KR20210041986A - The investment system integrating public blockchain and private blockchain - Google Patents

Abstract

Provided is an investment system interlinking public and private blockchains. The investment system interlinking public and private blockchains includes: a public blockchain network which provides investment in a form of cryptocurrency from multiple user nodes and records transaction details of the investment in a block; an application module which provides an interface for purchasing the cryptocurrency from a user node by providing a transaction system and providing a business list to select a type of business the user node wants to invest in; and a business node which registers a business description through the application module, receives the cryptocurrency investment from the user node, and builds a private blockchain network. The present invention is suitable for businesses which require confidentiality and scalability and the public blockchain which anyone can participate in and easy to raise funds.

Description

The investment system integrating public blockchain and private blockchain}

The present invention relates to an investment system in which a public blockchain and a private blockchain are interlocked. More specifically, it relates to an investment system in which a public blockchain and a private blockchain are linked to secure transparency by applying a blockchain, a distributed ledger technology that prevents forgery of information, to raise and operate investment funds.

Crowdfunding is a way of donating and investing through the Internet. There is no limit to investment even if it is a small amount, and it has the advantage of being able to raise funds in a wider range than existing loans. There are various types of crowdfunding, such as donation-type crowdfunding, in which applicants transfer funds for free, and loan-type crowdfunding, which returns profits to investors.

However, the existing crowdfunding method has limitations in terms of transparency. Investment-type crowdfunding has the advantage that individual investors can invest a small amount of money, and a relatively large amount of investment can be received from the business side as well. However, there is uncertainty about the purpose of use of investments collected through the Internet due to the uncertainty about fundraising and business.

Blockchain refers to a data distribution processing technology that distributes and stores all the data that are subject to management by all users participating in the network. It is also called'Distributed Ledger Technology (DLT)' or'Public Transaction Ledger' in that the ledger containing transaction information is not owned by the transaction entity or a specific institution, but is shared by all network participants. . Blockchain is a name given as a chain of blocks containing transaction details. This blockchain is a technology to prevent hacking such as forgery of transaction contents, and it sends transaction details to all users participating in the transaction, and uses a method to prevent data forgery by collating it with each transaction.

Blockchain is a core concept of decentralization, which aims for P2P (Peer to Peer) transactions, away from the existing financial system that secures and manages all transactions in financial institutions. P2P refers to a communication network that connects personal computers without a server or client, and each connected computer acts as a server and a client to share information.

In the existing financial system, financial companies have kept transaction records on a central server, whereas in a blockchain based on the P2P method, transaction information is stored in blocks and connected in sequence, which is shared by all participants.

Virtual currency, also known as electronic money or cryptocurrency, refers to currency that is traded online without real money such as bills or coins. Unlike ordinary currencies issued by governments or central banks in each country, virtual currency is valued according to rules set by the person who first devised it. In addition, due to the decentralization feature, the government or central bank does not manage transaction details and distributes based on blockchain technology, so specific institutions such as the government do not guarantee value or payment.

Korean Patent Registration 10-1996802 (announcement date July 5, 2019)

The technical problem to be solved by the present invention is transparent and high quality by combining a public blockchain with features that anyone can participate in and financing is easy and a private blockchain that is suitable for businesses requiring confidentiality and scalability. It is to provide an investment system that can support the investment activities of the company.

However, the technical problems to be solved by the present invention are not limited to the above problems, and may be variously extended without departing from the spirit and scope of the present invention.

In order to solve the above problem, the investment system in which a public blockchain and a private blockchain are interlocked according to an embodiment of the present invention provides investment money in the form of cryptocurrency from a plurality of user nodes, and transfers the transaction details of the investment money to a block An application module that provides a recording public blockchain network, a transaction system to purchase the cryptocurrency from the user node, provides a business list, and provides an interface through which the user node can select the type of business to invest, and It includes a business node that registers a description of a business through the application module, receives the cryptocurrency from the user node, and builds a private blockchain network.

In some embodiments according to the present invention, the operator node may distribute business profits generated by constructing the private blockchain network to the plurality of user nodes in which the cryptocurrency has been invested.

In some embodiments according to the present invention, the operator node may distribute business profits generated by building the private blockchain network to the plurality of user nodes according to the network construction contribution.

Other specific details of the present invention are included in the detailed description and drawings.

According to the present invention, it is possible to secure transparency in recruiting and operating investment funds by utilizing blockchain technology, and efficient financing, transparent fund management, and high quality business opportunities can be expected.

According to the present invention, since the public blockchain and private blockchain technology are used, anyone can participate in the network, and the cryptocurrency, the currency of the blockchain, can be circulated by the public blockchain participant nodes, and the private blockchain is an independent one. In the light of the fact that the organization/company of the block chain is the subject of operation of the block chain, it is possible to participate in the network only after obtaining the permission of the operator, so there is an aspect to strengthen confidentiality and security.

However, the effects of the present invention are not limited to the above effects, and may be variously extended without departing from the spirit and scope of the present invention.

1 is a diagram showing a distributed processing system using a block chain to which the technical idea according to the present invention can be applied.
2 and 3 are block diagrams showing the connection of blocks used in a block chain system.
4 is a diagram for explaining the concept of an investment system in which a public blockchain and a private blockchain are interlocked according to an embodiment of the present invention.
5 is a diagram for explaining a structure of profits by operation of an investment system according to the present invention.
6 is a block diagram of a computing device of a node according to an embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments are intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims.

The terms used in the present specification are for describing exemplary embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, "comprises" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements in which the recited component, step, operation and/or element is Or does not preclude additions.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions for the same elements are omitted.

Blockchain is a form of data distribution processing technology. Blocks containing transaction and block header data are verified for trust, and blocks are linked by a chain-type link through a hash, and are distributed, independent, and open common. It is a technology to manage ledger (ledger).

In this case, since all blocks are linked by including the block root hash value of the previous block in the block header, when one transaction is changed, the information of all blocks preceding the block is changed.

Therefore, it is possible to immediately check forgery and alteration of data. In this way, in the blockchain, all block data is stored in common by nodes participating in the network, and data integrity and reliability can be secured because forgery and alteration of data can be efficiently managed and protected.

Regarding the blockchain network technology, the public blockchain can be a node that anyone in the world can exchange and exchange transactions with, and anyone in the world can be a node that can verify these transactions. In addition, the transaction history that occurred on the public blockchain can be checked by everyone. Since anyone can check transaction details except personal information, it is suitable for a decentralized network in which each other monitors each other. In addition, thanks to the blockchain technology, the data stored in the block cannot be forged or altered.

On the other hand, in the private blockchain, only nodes with permission from the network or according to the rules set by the network founder/developer can participate, and without permission, the private blockchain network cannot be used, and the consensus process cannot be participated. Private blockchain has advantages in confidentiality and security because only those who have the authority to view transaction details can view it.

In addition, the private blockchain has the advantage of inexpensive and fast transaction processing speed, and the blockchain is operated by a small number of nodes that are reliable and have the power to process many transactions. Time and cost can be saved because there is no need to traverse all thousands of computer nodes.

The investment system that interlocks the public and private blockchains according to the present invention seeks to overcome the limitations of crowdfunding through the advantages of transparency and non-forgery of the data for an unspecified number of participants. The core of the present invention has the advantage that anyone can participate and it is easy to raise funds. It is a technology that combines public and private blockchains through the characteristics of cryptocurrency, which is an advantage of public blockchain, and that it is suitable for business, which is an advantage of private blockchain.

Both public and private blockchains are characterized by the fact that data managers participate in data management, but cannot be forged due to the characteristic of a distributed ledger. This is a feature made possible by modern encryption technology and distributed ledger management.

Through the public blockchain, investors invest in the operators that make up the private blockchain. The operator builds a private blockchain through investor's investment and pays a certain amount of the profits generated to the investor. These actions are carried out through Investment DApps on the public blockchain. All information is recorded on the public blockchain to maintain transparency.

Prior to the description of the investment system in which the public and private blockchains are interlocked according to the present invention, a distributed processing system using a blockchain will be described first.

1 is a diagram showing a distributed processing system using a block chain to which the technical idea according to the present invention can be applied.

Referring to FIG. 1, a distributed processing system 100 using a block chain is a distributed network system composed of a plurality of nodes 110-170. The nodes 110 to 170 constituting the distributed network 100 may be electronic devices having computing power, such as a computer, a mobile terminal, and a dedicated electronic device.

In general, the decentralized network 100 may store and refer to information commonly known to all participating nodes within a connection bundle of blocks called a block chain. The nodes 110-170 can communicate with each other and can be divided into a full node that is responsible for storing, managing, and disseminating the block chain, and a light node that can only participate in transactions only. . When a node is referred to in the present specification without further explanation, it is often referred to as a complete node that participates in a distributed network and performs an operation of creating, storing, or verifying a block chain, but is not limited thereto.

Each block connected to the blockchain includes transaction details, that is, transactions within a certain period of time. The nodes can manage transactions by creating, storing, or verifying the blockchain according to their respective roles.

Depending on the embodiment, the transaction may represent various types of transactions. In one embodiment, the transaction may correspond to a financial transaction to indicate the ownership status of virtual currency and its change. In another embodiment, the transaction may correspond to a real transaction for indicating the ownership status of an object and its change. In another embodiment, the transaction may correspond to an information sharing process for indicating recording, storage, and transfer of information. Nodes performing a transaction in the distributed network 100 may have a private key and a public key pair each having a cryptographic relationship.

2 and 3 are block diagrams showing the connection of blocks used in a block chain system.

Referring to FIG. 2, the block chain 200 is a kind of distributed database of one or more blocks 210, 220, 230 connected in sequence. The block chain 200 is used to store and manage transaction details of users in the block chain system, and each node participating in the network of the block chain system creates a block and connects it to the block chain 200. Although a limited number of blocks 210, 220, and 230 are shown in FIG. 2, the number of blocks that can be included in the block chain is not limited thereto.

Each block included in the block chain 200 may be configured to include a block header 211 and a block body 213. The block header 211 may include a hash value of the previous block 220 to indicate a connection relationship between blocks. In the process of verifying whether the block chain 200 is valid, the connection relationship in the block header 211 is used. The block body 213 may include data stored and managed in the block 210, for example, a transaction list or a transaction chain.

Referring to FIG. 3, the block header 211 may include a hash 2112 of a previous block, a hash 2113 of a current block, and a nonce 2114. In addition, the block header 211 may include a root 2115 indicating a header of a transaction list in a block.

As described above, the block chain 200 may include one or more connected blocks. The one or more blocks are connected based on a hash value in the block header 211. The hash value 2112 of the previous block included in the block header 211 is a hash value for the previous block 220 and is the same as the current hash 2213 included in the previous block 220. The one or more blocks are concatenated by a hash value of a previous block in each block header. Nodes participating in the distributed network verify the validity of the block based on the hash value of the previous block included in the one or more blocks, so it is impossible for a single malicious node to forge or alter the contents of an already created block. Do.

The block body 213 may include a transaction list 2131. The transaction list 2131 is a list of blockchain-based transactions. For example, the transaction list 2131 may include records of financial transactions made in the blockchain-based financial system. The transaction list 2131 may be expressed in the form of a tree. For example, the amount transmitted by the user A to the user B is recorded in the form of a list, and the storage length in the block is of the transaction included in the current block. It can be increased or decreased based on the number.

In addition, the block 210 may include other information 2116 other than the information included in the block header 211 and the block body 213.

The nodes participating in the decentralized network have the same blockchain, and the same transaction is stored in the block. Since the block containing the transaction list is shared on the network, all participants can verify it.

4 is a diagram for explaining the concept of an investment system in which a public blockchain and a private blockchain are interlocked according to an embodiment of the present invention. 5 is a diagram for explaining a structure of profits by operation of an investment system according to the present invention.

The investment system interlocking the public blockchain and the private blockchain according to the present invention includes a public blockchain network 310 and a private blockchain network 320 together, and an application module 330 as an intermediary role.

In the public blockchain network 310, a user node becomes a cryptocurrency holder, and can invest in the business of a business operator by investing an investment. At this time, through the application module 330 provided by the present invention, a list of blockchain businesses requiring investment may be listed and disclosed to investors.

Investors (user nodes) can select an investment target blockchain business from the list of the application module 330 and invest in the construction of the private blockchain network 320 through cryptocurrency distributed in the public blockchain network 310. .

Cryptocurrency is a currency required to operate the system in the present invention, and the cryptocurrency invested through the application module 330 can be used by a business operator to operate a service within a blockchain network.

A private blockchain operator builds a private blockchain network 320 and pays the profits obtained through business activities to investors in cryptocurrency. All transaction actions are recorded in the public blockchain network 310 to have transparency.

In the present invention, an investor (user node) may purchase cryptocurrency from an exchange provided through the application module 330 and invest cryptocurrency in a business to be invested by reviewing the list of investment target blockchain businesses based on this. .

Businesses who want to receive investment receive the investor's funds through the application module 330, and use this as capital to build a private blockchain network 320 and earn business profits. At this time, information on investment, such as investment details of investors and business listings of business operators, is recorded in a block of the public blockchain network 310 and is transparent and disclosed to all people.

Businesses operate a business by building a private blockchain network 320, and the profits obtained from this are distributed to investors (user nodes) who participated in the investment. At this time, the profit can be differentially distributed to investors (user nodes) according to the contribution made to the construction of the private blockchain network 320.

The investment system according to the present invention has the following effects.

Transparent money transfer using distributed ledger technology

Existing crowdfunding requires a mediator in the process of business advertising, financing, and investment. Therefore, the opacity of funds becomes a problem. On the other hand, if the investment system of the present invention is used, all movements of funds are recorded in the public blockchain and cannot be forged, and can be shared with all investors to have transparency.

Reduction of initial cost for operators

A business operator using the investment system according to the present invention is the subject of building a private blockchain network. In order to build and operate a private blockchain network, many transactions occur, and high-performance hardware is required to handle them. In addition, since various costs, such as electricity bills, are required to operate the blockchain, it can be burdened with network construction. However, through the investment system according to the present invention, a business operator receives an investment in the form of cryptocurrency from an investor, thereby reducing the burden on initial costs.

6 is a configuration diagram of a computing device of a node according to an embodiment of the present invention.

6, a computing device 1000 of a node according to an embodiment of the present invention includes a processor 1100 and a memory 1200, and the processor 1100 includes one or more cores and a graphic processing unit and/ Alternatively, a connection path (eg, a bus, etc.) for transmitting and receiving signals to and from other components may be included.

The processor 1100 according to an embodiment executes one or more instructions stored in the memory 1200 to execute the operation of the investment system described with reference to FIGS. 4 to 5.

For example, the processor 1100 collects transaction information generated in one or more nodes by executing one or more instructions stored in a memory, records the collected information in a block, and based on the information recorded in the block, Provides relevant information for at least one node.

Meanwhile, the processor 1100 may further include a random access memory (RAM) and a read-only memory (ROM) that temporarily and/or permanently store a signal (or data) processed internally. . In addition, the processor 1100 may be implemented in the form of a system on chip (SoC) including at least one of a graphic processor, RAM, and ROM.

The memory 1200 may store programs (one or more instructions) for processing and controlling the processor 1100. Programs stored in the memory 1200 may be divided into a plurality of modules according to functions.

The operations of the system described in connection with the embodiment of the present invention may be directly implemented by hardware, implemented by a software module executed by hardware, or implemented by a combination thereof. Software modules include Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Flash Memory, hard disk, removable disk, CD-ROM, or It may reside on any type of computer-readable recording medium well known in the art to which the present invention pertains.

Components of the present invention may be implemented as a program (or application) and stored in a medium in order to be executed by being combined with a computer that is hardware. Components of the present invention may be implemented as software programming or software elements, and similarly, embodiments include various algorithms implemented with a combination of data structures, processes, routines or other programming elements, including C, C++. , Java, assembler, or the like may be implemented in a programming or scripting language. Functional aspects can be implemented with an algorithm running on one or more processors.

It should be understood that the above-described embodiments are illustrative and non-limiting in all respects, and the scope of the present invention will be indicated by the claims to be described later rather than the detailed description described above. And the meaning and scope of the claims, as well as all changes and modifications derived from the equivalent concept should be construed as being included in the scope of the present invention.

100: distributed network
110-170: nodes
200: Blockchain
210, 220, 230: block
310: Public Blockchain Network
320: private blockchain network
330: application module

Claims (3)

A public blockchain network that provides investment money in the form of cryptocurrency from a plurality of user nodes and records transaction details of the investment money in a block;
An application module that provides a transaction system to purchase the cryptocurrency from the user node, provides a business list, and provides an interface through which the user node can select a type of business to invest; And
An investment system that links a public blockchain and a private blockchain, including; a business node that registers a description of a business through the application module and builds a private blockchain network by receiving the cryptocurrency investment from the user node. The method of claim 1,
The operator node is an investment system in which a public blockchain and a private blockchain are linked to distribute business profits generated by building the private blockchain network to the plurality of user nodes in which the cryptocurrency has been invested. The method of claim 2,
The operator node is an investment system that links a public blockchain and a private blockchain to distribute the business profits generated by constructing the private blockchain network to the plurality of user nodes according to the network construction contribution.

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