KR20200031857A - A method of operating Advertising services system based on Blockchain and a system for implementing the service environment - Google Patents

Abstract

An embodiment relates to a method for operating a blockchain-based advertisement service system composed of a distributed network of a plurality of nodes. The method includes a step of allowing an advertisement service to be performed in the distributed network according to an established smart contract. By the smart contract, a first block including a first data record related to advertisement specific information and advertisement fee execution information is shared by the plurality of nodes, a second block including a second data record related to collected advertisement performance information is generated to be shared by the plurality of nodes, transaction details between two nodes for advertisement fees calculated based on the first and second data records are generated to be shared by the plurality of nodes, a third block including at least one transaction detail is generated to be shared by the plurality of nodes, and a stored blockchain is updated based on communication from the distributed network so that the blockchain stored in at least one node among the plurality of nodes includes the first to third blocks. The present invention can efficiently operate advertisement service.

Description

A method of operating Advertising services system based on Blockchain and a system for implementing the service environment}

The present invention relates to a method for providing a blockchain-based advertisement service environment and a system for implementing a service environment.

According to the traditional payment method, if an advertisement is posted on a broadcasting station or a newspaper company, the structure is generally paid after a certain period of time. When a media agency charges for advertising, the agency intervenes and collects the media fee, so the advertising agency charges the advertiser for advertising. Such an advertisement payment method is an opaque system that may take a long time and may improperly use advertisement costs in the middle. In the case of the existing media, when the space is not sold, there may be a case where an advertisement is provided to an advertiser as a service. In addition, employees of the advertising bureau may generate fake sales by cutting the mutually false statement of trade to increase sales. With the recent development of IT technology, online advertising services are predominant. The online advertising service method is faster than the traditional advertising method, and the advertising fee is faster, and the performance and aggregation accuracy of advertising performance is higher. However, it is a reality that there is insufficient credibility for online advertising due to the lack of statistical data related to advertising, an indicator for evaluating advertising effectiveness, and an objective and reliable measurement system and an advertising fee calculation and payment system.

Korea Patent Publication No. 10-2003-0043827

An object of the present invention is to provide a system capable of securing the reliability of advertisement performance aggregation information.

In addition, an object of the present invention is to provide a system capable of resolving the accuracy and rationality of calculating advertisement fees.

In addition, an object of the present invention is to provide a system that enables advertising fees to be used as investment funds for crowdfunding.

In addition, an object of the present invention is to provide a system capable of securing trust in game production using crowdfunding.

In addition, an object of the present invention is to provide a method for providing a crowdfunding service environment for blockchain-based game production and a system for implementing a service environment.

In addition, an object of the present invention is to provide a system capable of securing stability, transparency and adequacy of the use of investment funds for game production and distribution of profits according to the produced game services.

The embodiment includes a method of operating a blockchain-based advertisement service system composed of a distributed network of a plurality of nodes, and allowing the advertisement service to be performed in the distributed network according to a set smart contract. In the contract, a first block including a first data record related to advertisement specific information and advertisement fee execution information is shared by the plurality of nodes, and a second block including a second data record related to collected advertisement performance information. Generated and shared with the plurality of nodes, and generated transaction details between two nodes for advertisement charges calculated based on the first and second data records, shared with the plurality of nodes, and at least one of the transaction details By creating a third block including a shared with the plurality of nodes, at least one of the plurality of nodes It is possible to provide a method of operating a blockchain-based advertising service system that includes updating the stored blockchain based on communication from the distributed network such that the blockchain stored in the node of the node includes the first to third blocks. have.

In another aspect, the plurality of nodes may provide a method of operating a blockchain-based advertisement service system including at least one advertiser node and a service node that aggregates the performance of advertisements requested by the advertiser node.

In another aspect, generating a second block including a second data record related to the collected advertisement performance information and sharing the plurality of nodes, the collected advertisement performance information is shared with the plurality of nodes, Any one of the plurality of nodes generates a second block including a second data record related to the collected advertisement performance information and shares it with the plurality of nodes, and nodes receiving the second block store the It is possible to provide a method of operating a blockchain-based advertisement service system that verifies the validity of the second block through comparison of the collected advertisement performance information and the second data record of the second block.

In another aspect, generating a transaction history between two nodes for advertisement charges calculated based on the first and second data records and sharing them among the plurality of nodes is one of an advertiser node and a service node serving advertisements. The node of the node generates transaction details related to the remittance of the coin corresponding to the advertisement fee, the node generating the transaction details transmits the transaction details to another node, and the node receiving the transaction details validates the transaction details It is possible to provide a method of operation of a blockchain-based advertising service system that verifies and stores valid transaction records in a temporary list.

In another aspect, verifying the validity of the transaction details includes verifying the transaction details regarding the remittance of the coin based on the first and second data records. Can provide

In another aspect, verifying the validity of the transaction history provides a method of operating a blockchain-based advertising service system further comprising the step of receiving a digital signature for the transaction history and verifying the validity of the transaction history. You can.

In another aspect, a computer program stored in a non-transitory computer-readable medium including instructions executable by at least one processor of at least one node of a blockchain-based advertising service system composed of a distributed network of a plurality of nodes, wherein: The instructions include allowing an advertisement service to be performed in the distributed network according to the established smart contract, wherein the smart contract includes a first block including a first data record related to advertisement specific information and advertisement fee execution information. The second block including a second data record related to the collected advertisement performance information is shared with the plurality of nodes, shared with the plurality of nodes, and calculated based on the first and second data records. The transaction is generated between two nodes for the advertised advertisement fee, and the plurality of A block chain that is shared with nodes and is shared with the plurality of nodes by generating a third block including at least one of the transaction details, and a blockchain stored in at least one node among the plurality of nodes is the first to the first It is also possible to provide a computer program stored on a non-transitory computer readable medium comprising updating the stored blockchain based on communication from the distributed network to include 3 blocks.

An embodiment in another aspect is a method of operating a crowdfunding system for a blockchain-based game production composed of a distributed network of a plurality of nodes, so that the crowdfunding service is performed in the distributed network according to the established smart contract. Including; The smart contract, the first block including the data record related to the game production plan information, and at least one transaction history related to the electronic transaction of the coin is shared with the plurality of nodes , Generating at least one new block including data records related to the at least one transaction history, and communicating from the distributed network such that a blockchain stored in at least one node among the plurality of nodes includes the new block The stored blockchain is updated based on It may provide a method of operating a system for crowdfunding game production of a block-based chain comprising.

In another aspect, it is also possible to provide a method of operating a crowdfunding system for blockchain-based game production, further comprising setting the smart contract based on the game production plan information.

In another aspect, the smart contract includes determining the creation time of the new block based on at least one of the number information of the transaction history, the amount of coin information on the transaction history, and the creation time information of the transaction history. To provide a method of operating a crowdfunding system for creating blockchain-based games.

In another aspect, the game production plan information includes information related to a step-by-step contract, and the smart contract determines whether to generate the new block based on whether or not the step-by-step contract is fulfilled. It is also possible to provide an operation method of a crowdfunding system for production of a game based.

In another aspect, the smart contract is a block comprising collecting the online voting results from pre-designated nodes among the plurality of nodes and determining whether to execute the step-by-step contract based on the online voting results. It may provide a method of operating a crowdfunding system for chain-based game production.

In another aspect, the smart contract, the sales information according to the service of the produced game, advertising information for the game service, the amount of coins on the transaction history between the crowdfunding node and the investor node, and the crowdfunding node and the investor It is also possible to provide an operation method of a crowdfunding system for creating a blockchain-based game that generates a new transaction history based on at least one of a generation time of transaction history between nodes.

In another aspect, the new transaction history includes at least one transaction history related to coin transfer to a developer node, at least one transaction history related to coin transfer to the developer node, and at least one related to coin transfer to the crowdfunding node. It is also possible to provide a method of operating a crowdfunding system for creating a blockchain-based game that includes at least one of one transaction history.

In another aspect, the smart contract, the node to grant the authority to create a new block to include the transaction history, sales information according to the service of the production completed game, advertising information for the game service, crowdfunding node and investor node Crowdfunding for blockchain-based game production, including determining based on the amount of coin information on the transaction history between, the creation time of the transaction between the crowdfunding node and the investor node, and the node information participating in online voting. It may also provide a method of operation of the system.

In another aspect, the node that receives the transaction history verifies the validity of the received transaction history, shares it with other nodes when the transaction history is validated, and discards the transaction history if the transaction history is not validated. Including, validation of the transaction details includes verification of at least one of verifying the syntax and data structure of the transaction, verifying whether the amount of money is within a preset standard remittance range, and verifying whether the date of remittance is within a preset period. It may also provide a method of operating a crowdfunding system for the production of blockchain-based games.

In another aspect, a computer stored in a non-transitory computer readable medium comprising instructions executable by at least one processor of at least one node of a crowdfunding system for creating a blockchain-based game composed of a distributed network of multiple nodes. As a program, the commands include allowing a crowdfunding service to be performed in the distributed network according to the established smart contract, and the smart contract generates an initial block including data records related to game production plan information. And, at least one transaction history related to the electronic transaction of the coin is shared with the plurality of nodes, and generates at least one new block including data records related to the at least one transaction history, and the plurality of nodes To at least one node Stored may be the chain block is provided with a computer program stored on a non-transitory computer-readable medium containing that communication of the stored block on the basis of the chain from the distributed network updated to include the new block.

In an embodiment, the advertisement service can be efficiently operated by automatically executing the contract according to the smart contract without having to individually check whether the intermediary intervenes according to the contract conditions or whether the contract conditions are satisfied.

In addition, embodiments may provide a method and system for securing transparency of an advertisement service contract, prompt collection of advertisement performance information, and accuracy and security of the collected information.

In addition, the embodiment may prevent manipulation of the collected advertisement performance information, thereby increasing confidence in calculating the advertisement fee. In addition, it is possible to increase the utilization value as data such as statistics on the collected advertisement performance information.

In addition, the embodiment may provide very objective and accurate data in selecting a game that is expected to have a high return on advertisement exposure.

In addition, embodiments can provide methods and systems that can ensure the stability, adequacy, and transparency of use for funded fundraising.

In addition, the embodiment can ensure the appropriateness and transparency of the distribution of profits according to the game service.

In addition, the embodiment can efficiently operate the crowdfunding service by automatically executing the contract according to the smart contract without having to individually check whether the intermediary intervenes according to the contract conditions or whether the contract conditions are satisfied.

In addition, the embodiments may solve or minimize various problems or limitations arising from the crowdfunding service performed offline or partially online.

In addition, the embodiment can solve the problem of selecting the only leader per round in the conventional leader (Leader) model and the problem when the selected leader is a malicious leader, and the producer node is generated through a method in which a producer node is generated in a permission period for each round. If you neglect block creation, you can solve the phenomenon that the blockchain system freezes, and you can prevent the existence of a large number of block producers.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood from the following description.

1 to 4 show an overview of an advertisement service system in which nodes in a crowdfunding and / or advertisement service network are configured or programmed to manage advertisement services in the form of an advertisement service blockchain.
5 to 7 are exemplary flowcharts of a method of operating a crowdfunding service system for blockchain-based game production.
8 and 9 are exemplary flowcharts of a method of operating a blockchain-based advertisement service system.
10 and 11 are other exemplary flowcharts of a method of operating a blockchain-based advertisement service system.

The present invention can be applied to various transformations and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention and methods for achieving them will be clarified with reference to embodiments described below in detail with reference to the drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. In the following examples, terms such as first and second are not used in a limiting sense, but for the purpose of distinguishing one component from other components. In addition, a singular expression includes a plural expression unless the context clearly indicates otherwise. In addition, terms such as include or have means that a feature or component described in the specification exists, and does not preclude the possibility of adding one or more other features or components in advance. In addition, in the drawings, the size of components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to what is shown.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals when describing with reference to the drawings, and redundant description thereof will be omitted. .

1 to 4 show an overview of an advertisement service system in which nodes in a crowdfunding and / or advertisement service network are configured or programmed to manage advertisement services in the form of an advertisement service blockchain.

The system described below forms a peer-to-peer network architecture on the network. That is, all users participating in the system have a status of equality, no special node exists, and all nodes (nodes 1 to n) share a role of configuring network services. The multiple nodes 100 on the network are connected to each other in a network having a topology such as each other. Even if the nodes in the network are in a position such as each other, each role may be different depending on functions supported.

All nodes have a routing function within the network, and may include other functions. All nodes can perform functions such as verifying and propagating transactions and blocks, and maintaining connection with neighboring nodes.

Users can be game developers, service managers, and investors. In another aspect, the user may be an advertiser or service manager. In another aspect, the user can be a game developer, service manager, investor, or advertiser. Each of these is an individual or may include an organization, community, or other type of entity.

The nodes 100 connected to the network include a crowdfunding node 110, an investor node 120 (1) to 120 (n), and a developer node 130.

In another aspect, the nodes 100 connected to the network include a service node 110 and an advertiser node 140 (1) to 140 (n).

In another aspect, the nodes 100 connected to the network include a crowdfunding node 110 and an investor node 120 (1) to 120 (n), a developer node 130 and an advertiser node 140 (1) to 140 (n)).

However, the network may also include nodes running special protocols, and may include a protocol gateway connecting these nodes and other nodes running other protocols.

A new node can first search for other nodes on the network to participate in a crowdfunding service or an advertising service. In order to start this process, the new node must search and connect at least one existing node on the network. In order for a new node to connect to a neighbor node it already knows, each node can connect a TCP connection to a specific number of ports or to an alternative port.

The new node can respond to the request by sending a connection request message to the neighboring node, and when the neighboring node approves the connection request, it sends an approval message to the new node. For example, if the new node is the developer node 130, there will be no investor node on the network, so the neighbor node may be the crowdfunding node 110. In another aspect, if the new node is the investor node 120, the neighbor node may be another investor node or developer node 130 or crowdfunding node 110 that has already joined the network. In another aspect, if the new node is the advertiser node 140, the neighbor node may be the service node 110 or other advertiser node. In another aspect, when the new node is the advertiser node 140, the neighbor node may be the developer node 130, the service node 110, the investor node 130, and other advertiser nodes.

After one or more connections are established, the new node can send an address message containing its IP address to neighboring nodes. In turn, neighbor nodes can make the newly connected node better known and better connected to other nodes by sending the received address message to their neighbor nodes. In addition, the newly connected node may send an address request message to neighbor nodes to request to transmit the IP address list of other neighbor nodes again. In this way, a node can search for neighbor nodes that are connected to it, and promote its presence on the network so that other nodes can search for it.

The service node 110 may have a copy of the entire blockchain. The investor node 120, the developer node 130, and the advertiser node 140 may have a copy of the entire blockchain or at least a copy corresponding to a subset of the blockchain. Blockchain can be created for each game. That is, a block chain per game to be produced may be generated through crowdfunding. Blockchain consists of a distributed computer system composed of immutable blocks composed of transactions (transactions). Each block constituting the blockchain contains a hash of the previous block, so the blocks are linked together to create a data record of all transactions written to the blockchain from the beginning. Since blocks are dependently connected to the previous blocks, it is almost impossible to disassemble, modify, and reconstruct them, and they are distributed and robust because each node owns them. In some embodiments, at least one transaction record is recorded in at least one block. Transaction details may be calculated as a hash and configured to prevent forgery and alteration. Each block and transaction can manage hash value and timestamp at the time of data generation to prevent falsification and track transaction history. In addition, the nodes 100 store blockchain ledger and wallet applications so that users can perform transactions or other related functions through the network in a safe and reliable manner.

Nodes can provide a blockchain explorer. Blockchain Explorer can be composed of web applications that act as coin search engines. Users with wallets can browse the coin address, transaction history, blocks, etc. through the blockchain explorer and understand the relationship and flow between them.

Each node includes a server, interface, system, database, agent, peer, engine, controller, or other type of computing device that operates individually or collectively, or can be configured with any suitable combination of computing devices to read all computing languages. You can. The computing device may include a processor configured to execute software instructions stored on a non-transitory computer-readable storage medium (eg, hard drive, solid state drive, RAM, flash, ROM, etc.). Preferably, software instructions are configured so that the computing device can provide various functions described below. In addition, the disclosed techniques can be implemented as a computer program product comprising a non-transitory computer readable medium storing software instructions that cause a processor to execute disclosed steps. Preferably, various servers, systems, databases and interfaces exchange data using HTTP, HTTPS, AES, public / private key exchange, web services APIs, known financial transaction protocols or other electronically based standardized protocols or algorithms. You can. Preferably, the data exchange can be performed through a packet switched network, the Internet, LAN, WAN, VPN or other type of packet switched network.

It will be appreciated that the disclosed technology can provide a number of advantageous technical effects, including the construction and storage of a blockchain representing the transaction of a game developer or investor or a service manager, advertiser. Through the construction and storage of the blockchain for the crowdfunding service and / or the advertisement service 10, the computing device can quickly and efficiently verify the appropriateness of the game production process and the use of the investment, and the appropriateness of the profit according to the game service You can expect fair distribution, and you can expect transparency in the advertisement performance aggregation and fair distribution of revenue based on the advertisement performance aggregation.

Hereinafter, the service node 110 may be represented as a crowdfunding node. The service node 110 may be configured with at least one computing device to implement crowdfunding service and advertisement service.

<Cloud funding service>

Hereinafter, the crowdfunding service will be described in more detail.

5 to 7 are exemplary flowcharts of a method of operating a crowdfunding service system for blockchain-based game production.

The crowdfunding node 110 may include a crowdfunding platform hosted on a computing device represented by the crowdfunding node 110. In some embodiments, the platform may be a web-based or crowd-based platform that can be accessed over a network by a computing device operated by a user, such as a manager, game developer, or investor of a crowdfunding node. The crowdfunding node may provide a web page that provides a function of an interface for developers to collect game production plan information.

The developer may access the web page provided by the crowdfunding node 110 through his computing device and input game production plan information on the web page.

The game production plan information may include game concept information, fundraising plan information, usage plan information, compensation plan information, and step-by-step contract information.

More specifically, the game concept information may include game planning information such as game idea information, component information of the game, expected target layer information, platform information, and game promotion method information. The fundraising plan information may include target amount information, fundraising period information, additional fundraising period information according to failure to reach the target amount within the fundraising period, minimum investment cost amount information per investor, maximum investment cost amount information per investor, and the like. The use plan information may include use plan information for an investment within a target amount range, use plan information for an investment exceeding a target amount, and the like. The compensation plan information may include compensation ratio information according to profits, non-monetary benefit information, and the like.

In addition, the developer can access the crowdfunding node 110 and download the blockchain-driven machine provided by the crowdfunding node 110 to install it on his computing device. In some embodiments, the blockchain-driven machine may be Coin Core software. In some embodiments, the blockchain-driven machine may be software distributed by the crowdfunding node 110. Developers can access the crowdfunding node 110 and download the blockchain-powered machine. In some embodiments, the blockchain driven machine may include all elements for blockchain driving. In some embodiments, the blockchain-driven machine includes some components for the blockchain operation, and the remaining components can be added through an update method. In some embodiments, the blockchain-powered machine can be modified and changed through software update method, some of all elements. The crowdfunding node 110 can provide various versions of a blockchain-driven machine that matches the operating system characteristics of each node of the developer or investors, so the user of the node downloads a blockchain-driven machine suitable for the operating system of his node And you can install them on your own node in the same way you run applications on any operating system.

In some embodiments, crowdfunding and / or advertising services may be performed in a distributed network according to the established smart contract. A computer program stored in a non-transitory computer-readable medium including instructions executable by at least one processor of at least one node of a crowdfunding system for creating a blockchain-based game composed of a distributed network of a plurality of nodes is a blockchain-driven It can be a machine. The commands herein may include enabling crowdfunding and / or advertising services to be performed in a distributed network according to the established smart contract.

In some embodiments, at least some of the contents of the smart contract are set based on game production plan information to be described later, and the blockchain system may be driven according to the smart contract. Therefore, it is possible to set a smart contract suitable for the game to be produced based on the type of game to be produced, the nature of the game, and the developer's game production plan. In addition, the blockchain system is operated according to the established smart contract, so that a user-customized crowdfunding service is possible.

In more detail, when the installation of the blockchain-driven machine is completed and executed, the pre-installed blockchain-driven machine may be updated by downloading and installing an update program from the crowdfunding node 110. Updates here can be smart contracts on crowdfunding recruitment, investment, profit distribution, and how the blockchain operates. When the blockchain-driven machine is updated, the blockchain system can be driven according to the smart contract.

In some embodiments, a smart contract is a digital command recorded in a block, and the block in which the smart contract is recorded can be stored in the blockchain while being shared with all nodes. In addition, all nodes may execute the contract contents by automatically executing the code of the smart contract on the corresponding block so that the service is started.

Smart contract is a kind of contract that describes the contents of the contract regarding funding, use of funds, distribution of profits, and the way of operating the blockchain, so that the script describing the contract can be automatically distributed on a network basis. The updated blockchain-powered machine interprets and executes the code related to smart contracts so that the blockchain service can operate according to the smart contracts.

In addition, the blockchain starts downloading according to the execution of the blockchain-driven machine. Depending on the time of the blockchain download, the blockchain-powered machine can run in the background until it changes from out of sync to Synchronized.

The crowdfunding node 110 generates a crowdfunding game promotion page based on the game production plan information. And the crowdfunding node 110 updates the crowdfunding game list by adding the generated crowdfunding game promotion page on the crowdfunding game list. In addition, the crowdfunding node 110 publishes a crowdfunding game list on its website, so that anyone who accesses the website through the network can view it.

The crowdfunding node 110 may set a smart contract based on the game production plan information. Blockchain-driven machines installed on their respective nodes are updated so that the blockchain can be driven according to the established smart contract. And the updated blockchain-powered machine allows the blockchain system to be driven according to the established smart contract. That is, a workflow may be determined according to a smart contract residing on the blockchain.

The smart contract may include rules regarding block automatic generation, block generation authority, and block generation time.

The crowdfunding node 110 may generate an initial block including input game production plan information.

The first block may include all game production plan information. That is, all information regarding the game production plan written by the developer on the web page provided by the crowdfunding node 110 may be included in the initial block. In another aspect, the initial block may include summary information summarizing game production plan information and a URL (Uniform Resource Locator) to a webpage where the original game production plan information can be viewed. The node that has received the first block can check summary information recorded on the first block, and can also check the entire contents of the game production plan information through the URL.

When the first block is created in the crowdfunding node 110, the block chain driving machine of each node can download the newly added block through a synchronization process. For example, the developer node 130 receives the first block generated from the network. In some embodiments, the developer node 130 checks the validity of the received first block and then verifies that it is valid, then stores the first block in memory.

Those interested in investing in game production can access the website of the crowdfunding node 110 to view at least one game content in the crowdfunding game list.

The crowdfunding node 110 may provide a web page to the investor node 120 wishing to invest in a particular game. The web page provides the functionality of an interface for investors.

The investor transmits a request signal for investing in a specific game to the crowdfunding node 110 through a web page.

The crowdfunding node 110 may transmit a web page including the address information for remittance of the crowdfunding node 110 and a URL for downloading the blockchain-driven machine to the investor node 120 in response to the investment request request signal. . The address information for the remittance of the crowdfunding node 110 on the web page is used for the coin transmission to the crowdfunding node 110. And the investor can download the blockchain-powered machine through the URL on the web page and install it on his node. In some embodiments, the blockchain-driven machine may be a program to which the smart contract described above is applied. Meanwhile, the currency unit named Coin is used to store and transfer value between participants on the network.

The blockchain-driven machine installed in the investor node 120 downloads the blockchain and is synchronized to the blockchain. In some embodiments, the block chain synchronization may not be completed until the fundraising period expires because the capacity of the blockchain to be synchronized at the investor node 120 is very large. In this case, a transaction in which a coin for investment is transferred from a separate additional node to the crowdfunding node 110 may be generated. When the transaction history generated by the additional node is included in the new block, when the transaction history is created, the transaction history called coin transfer from the node with the IP address specified by the investor (investor node with blockchain synchronization in progress) to the crowdfunding node 110 is converted. Can be included in a new block. In some embodiments, the additional node may be a node provided by crowdfunding node 110.

Investors run wallet applications on their computing devices to participate in crowdfunding.

The wallet application executed on the computing device corresponding to the investor node 120 displays an interface for remittance.

The investor may generate a transaction for transmitting the coin corresponding to the input remittance amount to the crowdfunding node 110 by inputting the address information for the remittance of the crowdfunding node 110 and the remittance amount of the coin on the remittance interface. In some embodiments, the investor scans the identification code for remittance of the crowdfunding node 110 using a scanner that is an auxiliary device of the computing device. The computing device converts the information of the identification code read through the scanner into address information for remittance. In addition, the computing device may automatically input address information for remittance in the address information input field for remittance of the remittance interface. In another aspect, when the investor node 120 is a wearable computing device, an identification code for remittance may be scanned through a camera device provided in the wearable computing device.

The crowdfunding node 110 may receive coins corresponding to the investment money from a plurality of investor nodes 120 (1) to 120 (n) according to the above-described value transmission method. In some embodiments, crowdfunding node 110 may only receive coins from investor nodes within the fundraising period.

As the transaction for transferring the coin from the investor node 120 to the crowdfunding node 110 is established, the coin in the wallet of the investor node 120 escapes and the investor can digitally sign the transaction with a private key. Upon completion of the signature, the network is informed that the transfer of coins from the investor node 120 to the crowdfunding node 110 is permitted. Since the transaction is made through the P2P protocol, the transaction is quickly transferred to the network and within a few seconds, most of the nodes connected to the network receive the transaction details.

When a transaction is sent to a node connected to the network, the transaction is validated by that node. Once the transaction is validated, the transaction can be propagated to other nodes connected to that node and a success message can be delivered to the producer at the same time. If the transaction is not validated, the node rejects the approval and the rejection message can be returned to the producer. Each node can verify the validity of the transaction through a validation step. Each node illustratively verifies that the transaction's syntax and data structure are correct, and that the remittance amount is within a preset standard remittance range (e.g., minimum investment cost per investor, maximum investment cost per investor), The validity of the transaction can be verified by verifying whether the transfer date is within a preset period (for example, a fundraising period). Through this verification process, valid transactions are propagated on the network, but invalid transactions may be discarded at the crowdfunding node 110, which is the first node transmitted by way of example.

On the other hand, the coin transfer transaction from the investor node 120 to the crowdfunding node 110 maintains an unconfirmed state. That is, the transaction has been transferred to the network, but it has not yet been included in the blockchain ledger. When a new block connected to the blockchain is created after the coin transfer transaction occurs, the transaction details in the created block (including the coin transfer transaction from the investor node to the crowdfunding node described above) are approved in the form of confirmation on the network. do.

Nodes on the network can maintain a temporary list of unauthorized transactions, referred to as memory pools or transaction pools. Nodes can use this pool to track transactions that are known to the network but are not yet included in the blockchain. For example, coins transferred from the investor node 120 to the crowdfunding node 110 are stored in a temporary list of unauthorized transactions, and when a new block is created, the stored transaction details are included in the generated block.

In some embodiments, each block in the blockchain may have a summary of all transactions contained in that block using the Merkle tree.

Blockchain-driven machines can create new blocks under certain conditions and under specific conditions according to smart contracts. Specifically, the blockchain-driven machine can automatically generate new blocks during the first period. For example, the first period may be a period from the time when coin collection from the investor is started to the time at which coin collection is ended. For example, the time when coin raising from the investor is started may be the time when the first block is created.

In addition, in some embodiments, the blockchain-powered machine may generate a new block when the total amount of coins raised in the transaction history stored in the temporary list after the creation of the last block exceeds a preset value. In addition, the new block that is created includes the transaction history being stored in the temporary list. In some embodiments, the preset value here may be smaller than the target fundraising amount, so that a plurality of new blocks will be generated during the fundraising period.

In some embodiments, the blockchain-powered machine may generate a new block when the number of transaction records stored in the temporary list corresponds to a preset value.

In some embodiments, crowdfunding node 110 may periodically create new blocks during the first period. In some embodiments, the crowdfunding node 110 may not generate a new block if there is no transaction history stored at the time of generating the new block.

Also, the crowdfunding node 110 may include a plurality of transaction details stored in the pool in a new block according to priority. Priority may be determined based on the number of coins sent. In some embodiments, the higher the number of remittances, the higher the priority. For example, the transaction history between the investor node 120 and the crowdfunding node 110 that transmitted the most coins may be included in a new block as a priority.

In some embodiments, each block in the blockchain can have a summary of all transactions contained in the block using the Merkle Tree, so it can be quickly checked whether a particular transaction is included in the block. In addition, the blockchain-driven machine of each node can identify the order of inclusion of transaction details in the block through the Merkle route.

In addition, after creating a new block, the blockchain-driven machine can calculate the total amount of coins by referring to the transaction history of all the new blocks currently created from the next block of the first block. And the blockchain-powered machine can determine whether the total amount of coins calculated exceeds the target amount. If the total amount of coins calculated does not exceed the target amount, the blockchain-driven machine may generate new blocks during the second period. The second period may be an additional fundraising period due to failure to reach a target amount within the fundraising period. The blockchain-driven machine can create a new block in the same way as the operation method in the first period to store the transaction history in the block.

The blockchain-driven machine that creates a new block may be performed in software installed in the crowdfunding node 110. The crowdfunding node 110 may create a new block and connect it to the first block to update the blockchain.

Other nodes have a local copy of the blockchain originating from the initial block. Other nodes connect the blocks to the existing blockchain after receiving the newly generated blocks from the crowdfunding node 110.

The blockchain-driven machine can automatically generate new blocks according to the smart contract during the third period. For example, the third period may be a period from the end of the first period to the completion of game production. In some embodiments, the third period may be a period from the end of the second period to the completion of game production.

The crowdfunding node 110 may check the contract terms of the game developer for each step and transmit the coin of the amount applied according to the contract terms for each step to the developer node 130. That is, the process of completing the entire project task of game development is divided into stages and inspected. And, whether to generate a transaction for remitting at least a part of the funded fundraising to the developer node 130 is determined according to whether or not the contracted items are fulfilled step by step. Thus, it ensures the appropriateness and transparency of the use of funded fundraising.

Transaction details according to the transmission of coins are propagated to all nodes participating in the network. In addition, if the propagation of transaction details occurs during the third period, the blockchain-driven machines of nodes pre-designated according to the smart contract may execute the online voting application. Pre-specified nodes here may be investor nodes 120.

Whether a new block is created is determined according to the result of the online voting. That is, the final approval of the transaction history of the remittance of at least a part of the raised funds from the crowdfunding node 110 to the developer node 130 depends on the above-mentioned online voting results. As a result of online voting, a new block is created when a consent of a predetermined criterion or more is reached, and the transaction history is included in the new block. Accordingly, the transaction details are finally approved, so that the owner of the remitted coin is changed to the developer node 130.

In some embodiments, pre-designated nodes may be all nodes participating in the network. In some embodiments, the likelihood of participating in online voting may be high in proportion to the amount of the funding amount. In other words, online voting for only investors who have funded more than a certain amount of coins can help achieve a quick agreement. Therefore, the pre-designated nodes may be limited to nodes that have sent coins above a predetermined value as a funding investment.

For convenience of explanation, if the pre-designated nodes are limited to the case of the investor nodes 120, the investors can record the transaction related to the coin transfer from the crowdfunding node 110 to the developer node 130 through the executed online voting application. You can vote to approve. All nodes on which the online voting application has been executed can share their voting results with each other. As a result of the online voting, a new block may be generated when a transaction number is approved by more than a predetermined number of people according to the smart contract. For example, the crowdfunding node 110 may generate a new block when transaction transaction approval is confirmed. In some embodiments, the newly generated block may include information of nodes participating in voting and a corresponding transaction history.

The crowdfunding node 110 may connect the generated new block to the blockchain, and other nodes may download the new block according to the synchronization of the blockchain and connect the new block to the existing blockchain.

In some embodiments, in addition to the transaction history according to the coin transfer from the crowdfunding node 110 to the developer node 130, the new block created during the third period includes a transaction history for remitting the inspection fee to the crowdfunding node 110. It can be included as

More specifically, the crowdfunding node 110 may receive a coin corresponding to the inspection fee applied according to the step-by-step contract. Specifically, the crowdfunding node 110 may have a first wallet application for storing coins remitted from the investor node 120 and a second wallet application for storing coins corresponding to the inspection fee. And the address information for remittance of the first and second wallet applications is different from each other. Accordingly, coins sent from the investor node 120 and coins corresponding to the inspection fee may be stored in different wallet applications. The crowdfunding node 110 may generate a transaction for payment of an inspection fee to a node having address information for remittance of the second wallet application, that is, its own node. Further, a new block including a transaction history according to the remittance of the coin corresponding to the inspection fee and a transaction history according to the coin remittance to the developer node 130 may be connected to an existing blockchain.

After the developer completes the game production, the produced game can be serviced. The produced game may be serviced on the platform provided by the crowdfunding node 110. The service herein is a concept including a service that allows a plurality of game users to access the crowdfunding node 110 to enjoy the game, an advertisement service for the produced game, and the like.

The blockchain-driven machine can monitor sales information according to the game service on the crowdfunding node 110. In some embodiments, the crowdfunding node 110 may calculate the net profit from the sales information according to the game service, and convert the net profit to the number of coins. The crowdfunding node 110 may convert the net profit to the amount of coins through the exchange rate application. Therefore, in response to the change in the value of the coin, the net profit can be calculated as the amount of the coin in accordance with the current price of the coin.

The crowdfunding node 110 is a transaction for distributing profits according to a smart contract to all nodes when a predetermined amount of sales occurs during the fourth period (eg, a period after the end of the third period) Can generate

For example, the crowdfunding node 110 may generate a transaction for sending a coin corresponding to a portion of the proceeds to the developer node 130. In some embodiments, the crowdfunding node 110 may create a transaction to send coins corresponding to a portion of the proceeds to the investor nodes 120. In some embodiments, the crowdfunding node 110 may generate a transaction for sending coins corresponding to a portion of the profit based on a ratio determined according to the amount of money collected for each investor node 120. In some embodiments, the crowdfunding node 110 may generate a transaction for sending a coin corresponding to a fee according to a game advertisement service, etc. to its node 110. In some embodiments, the crowdfunding node 110 may instead create a transaction in which a node generating a new block sends a coin corresponding to a portion of the proceeds to its node (a node generating a new block).

When the transaction history occurs during the fourth period of time, the blockchain-driven machine of the crowdfunding node 110 may set the probability value of the block creation authority according to the smart contract. And the blockchain-driven machine adjusts the probability value of the block creation authority set according to the smart contract, and can grant the authority to create the block to the selected node based on the adjusted probability value. For example, it is assumed that the developer node 130 has the first block creation authority probability value, the crowdfunding node 110 has the second block creation authority probability value, and the investor node 120 has the third block creation authority probability value. do. In addition, the probability of having a new block creation authority may increase as the probability value of the block creation authority increases. In addition, the probability value of the first block generation authority may be adjusted based on the proceeds of the game service. In addition, the probability value of generating the second block may be adjusted according to the activity amount of the game advertisement service. Therefore, the active agent of the game advertisement service induces an active advertisement activity. In addition, the probability value of the third block generation authority may be adjusted according to the amount of the investment. That is, the higher the investment amount, the more likely it is to have the authority to create blocks, leading to active investment. In some embodiments, the probability value of the third block generation authority may be adjusted according to the investment timing. The blockchain-powered machine can identify the time of investment by checking the order of blocks in the blockchain and when to include transaction details in a specific block from the Merkle route. Considering that the risks of investments accepted by investors who participate in funding with a large amount of investment and those who participate in funding (for example, immediately after the commencement of funding) that do not have a large amount of investment may differ, an example The sooner you can increase the probability value. In some embodiments, the probability value of generating the third block may be adjusted according to whether or not to participate in online voting. The node participating in the online voting can be determined from the data record in the block. In addition, it is possible to induce an active online voting by increasing the probability value that a block creation authority is granted to a node participating in the online voting.

Nodes that have been granted permission to create blocks can create new blocks. The transaction block generated by the above-mentioned crowdfunding node may be included in the generated new block. The created block is connected to the existing blockchain and propagated to other nodes. In addition, the transaction history generated by the crowdfunding node may include a transaction history in which a node generating a new block sends coins corresponding to a portion of the proceeds to its node (a node generating a new block). Therefore, the node to which the block generation authority has been granted can generate additional profits in addition to the distribution of the predetermined profits. In another aspect, a special transaction may be created that is constructed by nodes generating new blocks and is a concept of compensation for block creation. That is, a node that creates a new block can create a transaction with the concept of a coin that pays with the wallet of its own node. And when a new block is created, the above-mentioned special transaction details are included in the new block.

<Ad service>

8 and 9 are exemplary flowcharts of a method of operating a blockchain-based advertisement service system.

3, 8 and 9, the service node 110 may include an advertisement service platform hosted on a computing device represented by the service node 110. In some embodiments, the platform may be a web-based or cloud-based platform that can be accessed over a network by a computing device operated by a user, such as an administrator, advertiser of a service node. The service node may provide a web page that provides a function of an interface for an advertiser to collect advertisement information.

The advertiser may access the web page provided by the service node 110 through his computing device and input advertisement information on the web page.

The advertisement information may include advertisement type information, advertisement exposure location information, advertisement exposure period information, advertisement fee execution information, and the like.

In addition, the advertiser may access the service node 110 to download a block-chain-driven machine provided by the service node 110 and install it on its own computing device.

In some embodiments, the advertisement service may be performed in a distributed network according to the established smart contract. The smart contract may be set based on advertisement information. In other words, based on the advertisement information, the advertisement performance information collection method, the advertisement performance information collection time, the advertisement performance information collection period, the advertisement fee calculation method, the advertisement fee calculation timing, and the block creation time are determined, and the smart contract is executed so that the blockchain operates according to the decision. Can be set.

A computer program stored in a non-transitory computer-readable medium including instructions executable by at least one processor of at least one node of a blockchain-based advertising service system composed of a distributed network of multiple nodes can be a blockchain-driven machine. have. Here, the commands may include allowing the advertisement service to be performed in a distributed network according to the established smart contract.

In some embodiments, the blockchain-driven machine may be configured to operate according to a preset smart contract. That is, a workflow may be determined according to a smart contract residing on the blockchain.

In some embodiments, when the installation of the blockchain-driven machine is completed and executed, the pre-installed blockchain-driven machine may be updated by downloading and installing an update program in the service node 110. Updates made here can be smart contracts regarding how advertisements are aggregated, how advertisements are executed, when blocks are created, and when blocks are created. When the blockchain-driven machine is updated, the blockchain system can be driven according to the smart contract.

In some embodiments, a smart contract is a digital command recorded in a block, and the block in which the smart contract is recorded can be stored in the blockchain while being shared with all nodes. In addition, all nodes may execute the contract contents by automatically executing the code of the smart contract on the corresponding block so that the service can be started.

Smart contract is a kind of contract that describes the contents of the contract regarding advertisement aggregation, advertisement revenue distribution, and blockchain operation method, and the script describing the contract can be automatically distributed on the network basis. The updated blockchain-powered machine interprets and executes the code related to smart contracts so that the blockchain service can operate according to the smart contracts.

In addition, the blockchain starts downloading according to the execution of the blockchain-driven machine. Depending on the time of the blockchain download, the blockchain-powered machine can run in the background until it changes from out of sync to Synchronized.

The service node 110 may set advertisement fee execution information based on advertisement information input through an interface for an advertiser. The advertisement fee may be set based on the advertisement type, the location of the advertisement exposure, the duration of the advertisement exposure, and the advertisement performance.

The service node 110 may generate advertisement-specific information including the advertisement information and advertiser information.

The service node 110 may generate a block including data records related to advertisement specific information and advertisement fee execution information. Here, the block may be the first block.

The block may include all advertisement information. That is, all information described on the web page provided by the advertiser by the service node 110 may be included in the block. In another aspect, the block may include summary information summarizing advertisement information and a uniform resource locator (URL) for a web page that identifies an original of advertisement information. The node receiving the block can check the summary information recorded on the block, and can also check the entire contents of the game production plan information through the URL.

When a block is created in the service node 110, the block-chain-driven machine of each node can download the block through a synchronization process. For example, the advertiser node 140 receives a block generated from the network. In some embodiments, the advertiser node 140 checks the validity of the received block and then verifies that it is valid and stores the block in memory.

The service node 110 may service the advertisement requested by the advertiser online. In addition, the service node 110 may monitor the performance of the serviced advertisement. That is, the service node 110 may collect advertisement performance information by monitoring advertisement clickthrough rate (CTR), number of conversions, conversion sales, statistics for each time period, and the like.

The blockchain-powered machine of the service node 110 may generate a new block including data records related to advertisement performance information collected during a predetermined period. In detail, the service node 110 may record the advertisement performance information collected until the creation time of the next new block after the creation of any one block in the new block.

In another aspect, advertisement performance information collected by the service node 110 may be propagated to other nodes and shared with a plurality of nodes. Nodes that have received advertisement performance information among the nodes on the network may store the advertisement performance information received on a temporary list referred to as a memory pool or a transaction pool. In addition, the node having the authority to create a block may generate a new block including advertisement performance information stored on the temporary list. The new block is propagated to other nodes so that multiple nodes can share the new block.

The node receiving the generated new block can verify the validity of the new block by comparing the advertisement performance information stored on the temporary list of its node with the advertisement performance information included in the new block. The new block, which has been validated, is stored in memory so that the blockchain can be updated.

The block creation authority may be provided by the service node 110. That is, the smart contract may be configured so that the service node 110 generates a block including advertisement performance information stored in the temporary list at a preset time. In some embodiments, the smart contract may be configured to cause any one randomly determined node among a plurality of nodes to generate a block including advertisement performance information. In some embodiments, the smart contract may be configured to generate a block including advertisement performance information by any one node determined according to a preset rule among a plurality of nodes.

Since the advertisement performance information collected by the service node 110 is shared by a plurality of nodes, transparency and security for advertisement performance information are enhanced.

The service node 110 or the advertiser node 140 may calculate the advertisement fee based on a data record in a block including advertisement specific information, advertisement fee execution information, and advertisement performance information at a preset time point. In addition, the service node 110 or the advertiser node 140 may generate a transaction history of remitting a coin corresponding to the calculated advertisement fee from the advertiser node 140 to the service node 110. For example, assuming that the node to pay the advertisement fee is the first advertiser node 140 (1), the coin corresponding to the calculated advertisement fee is transferred from the first advertiser node 140 (1) to the service node 110. Transaction details of remittance may be generated.

When the entity generating the transaction details is the service node 110, the generated transaction details are transmitted to the first advertiser node 140 (1). On the other hand, when the entity generating the transaction details is the first advertiser node 140 (1), the transaction details are transmitted to the service node 110. Hereinafter, for convenience of description, it is assumed that the service node 110 has generated transaction details.

The first advertiser node 140 (1) may verify the validity of the received transaction details. The first advertiser node 140 (1) calculates the advertisement fee based on the data record in the block including the advertisement specific information, advertisement fee execution information, and advertisement performance information to validate the transaction history, and the calculated advertisement fee is transaction history It can be determined whether or not it matches the remittance amount. In addition, the first advertiser node 140 (1) may request a digital signature for the transaction from the first advertiser of the first advertiser node 140 (1) 1. When the first advertiser completes the digital signature, it is known to the network that coin transfer from the first advertiser node 140 (1) to the service node 110 is permitted. Since the transaction is made through the P2P protocol, the transaction is quickly transferred to the network and within a few seconds, most of the nodes connected to the network receive the transaction details. And the coin remittance transaction from the first advertiser node 140 (1) to the service node 110 maintains an unconfirmed state. That is, the transaction has been transferred to the network, but it has not yet been included in the blockchain ledger. When a new block connected to the blockchain is created after the coin transfer transaction occurs, the transaction details in the created block are approved in the form of confirmation on the network.

The block creation authority may be provided by the service node 110. That is, the smart contract may be configured to generate a block including the transaction history stored in the temporary list by the service node 110 at a preset time point. In some embodiments, the smart contract may be configured to cause any one randomly determined node among a plurality of nodes to generate a block including transaction details. In some embodiments, the smart contract may be configured to generate a block including a transaction history by any one node determined according to a preset rule among a plurality of nodes.

The advertisement performance information necessary for calculating the advertisement fee is transparent and has high security. Therefore, the accuracy and rationality of calculating the advertisement fee are guaranteed. In addition, payment of advertising fees can be made very quickly and accurately. In addition, there is an advantage that can block virtually the problem of virtual sales generated through false advertising sales.

In addition, advertising fees are paid in the form of coins. In addition, through the exchange rate application, various currencies in all countries where advertising service is performed are unified as a payment means called a coin. Therefore, it is possible to solve the problem of complex advertising costs due to the complexity of the exchange rate.

<Participation of advertisers in the cloud funding service>

10 and 11 are other exemplary flowcharts of a method of operating a blockchain-based advertisement service system.

4, 10 and 11, the advertiser node 140 may participate in the crowdfunding service. The advertiser node 140 may expose an advertisement on a corresponding game service when a game produced through crowdfunding is serviced. In addition, it is possible to participate in the crowdfunding service through the establishment of a contract to transmit a coin corresponding to the advertisement fee according to the advertisement exposure to the developer node 130 that produced the game and the actual implementation of the contract.

The advertiser node 140 may input advertisement information on a web page provided by the service node 110.

The service node 110 may transmit the investment recommendation game information to the advertiser node 140 based on the input advertisement information and the record information in the block on the local copy of its blockchain. Specifically, a local copy of the blockchain associated with each of a plurality of games may be stored in the memory of the service node 110. The plurality of games here are games being produced according to crowdfunding. The service node 110 is based on a local copy of the blockchain associated with each of a plurality of games, according to game type planning information, current investment amount information, game service, such as game type of each game and expected target layer information of the game service. You can check the transaction details of the distribution of profits. In addition, information on a game suitable for exposing advertisements among a plurality of games may be extracted to generate investment recommendation game information. Advertisers can help to select games that are suitable for exposing their advertisements based on investment recommendation game information. In addition, the investment recommendation game information can function as very objective and accurate data when an advertiser selects a game that is expected to have a high return on advertisement exposure.

More specifically, the advertiser node 140 may participate in the network to download a blockchain-driven machine and install it on their computing device. When the blockchain-driven machine is executed, the synchronization of the blockchain takes place. The block chain in which synchronization is performed is a block chain related to the game that the advertiser decides to expose the advertisement.

When the game production is completed, for example, the service node 110 may insert an advertisement into the serviced game to expose the advertisement. That is, the advertisement may be exposed during the game play process. In some embodiments, the advertisement may be exposed on the initial screen of the game. However, the present invention is not limited thereto, and advertisements may be exposed in various ways during the game service process. In addition, the service node 110 may monitor the performance of the serviced advertisement. That is, the service node 110 may collect advertisement performance information by monitoring advertisement clickthrough rate (CTR), number of conversions, conversion sales, statistics for each time period, and the like.

The blockchain-powered machine of the service node 110 may generate a new block including data records related to advertisement performance information collected during a predetermined period. In detail, the service node 110 may record the advertisement performance information collected until the creation time of the next new block after the creation of any one block in the new block.

In some embodiments, the advertisement performance information collected by the service node 110 is propagated to other nodes, such as the developer node 130, the investor node 120, and other advertiser node 140, and can be shared among a plurality of nodes. . Among the nodes on the network, nodes receiving advertisement performance information may store the advertisement performance information received on the temporary list. In addition, the node having the authority to create a block may generate a new block including advertisement performance information stored on the temporary list. The new block is propagated to other nodes so that multiple nodes can share the new block.

The block creation authority may be provided by the service node 110. That is, the smart contract may be configured so that the service node 110 generates a block including advertisement performance information stored in the temporary list at a preset time. In some embodiments, the smart contract may be configured to cause any one randomly determined node among a plurality of nodes to generate a block including advertisement performance information. In some embodiments, the smart contract may be configured to generate a block including advertisement performance information by any one node determined according to a preset rule among a plurality of nodes.

The developer node 130, the investor node 120, the service node 110, or the advertiser node 140, at a preset time, advertising charges based on data records in a block containing advertisement specific information, advertisement charge execution information, and advertisement performance information. Can be calculated. And the service node 110 or the advertiser node 140 is a developer node 130 in the first transaction history and the advertiser node 140 to send a coin corresponding to the calculated advertisement fee from the advertiser node 140 to the service node 110 ) To create a second transaction history. For example, assuming that the node to pay the advertisement fee is the first advertiser node 140 (1), the coin corresponding to the calculated advertisement fee is transferred from the first advertiser node 140 (1) to the service node 110. A first transaction history of remittance may be generated. In addition, advertising fees may be used as an investment concept according to crowdfunding. That is, the advertisement fee may be used as a second transaction history in which coins corresponding to some amount of advertisement fees are transferred from the first advertiser node 140 (1) to the developer node 110.

Since the first and second transaction details can be generated by any one of a plurality of nodes, it is not limited to a specific node. However, for convenience of description, it is assumed that the first advertiser node 140 (1) generates first and second transaction details. In this case, the generated first and second transaction details are transmitted to either the service node 110 or the developer node 130. Nodes that have received the first and second transaction details can verify the validity of the transaction details.

In order to validate the transaction history, the advertisement fee is calculated based on the data record in the block containing advertisement specific information, advertisement fee execution information, and advertisement performance information, and whether the calculated advertisement fee matches the total remittance amount in the first and second transaction history Can judge. In addition, when the node receiving the transaction history receives a digital signature for the transaction, the first advertiser node 140 (1) transfers coins from the service node 110 to the first advertiser node 140 (1). It is known to the network that coin transfer to the developer node 130 is permitted. Since the transaction is made through the P2P protocol, the transaction is quickly transferred to the network and within a few seconds, most of the nodes connected to the network receive the transaction details. And the first and second transaction details remain unconfirmed. That is, the transaction has been transferred to the network, but it has not yet been included in the blockchain ledger. When a new block connected to the blockchain is created after the coin transfer transaction occurs, the transaction details in the created block are approved in the form of confirmation on the network.

The block creation authority may be provided by the service node 110. That is, the smart contract may be configured to generate a block including the transaction history stored in the temporary list by the service node 110 at a preset time point. In some embodiments, the smart contract may be configured to cause any one randomly determined node among a plurality of nodes to generate a block including transaction details. In some embodiments, the smart contract may be configured to generate a block including a transaction history by any one node determined according to a preset rule among a plurality of nodes.

In some embodiments, the authority to create blocks may be determined through contention among a plurality of nodes. Specifically, a plurality of nodes among the nodes participating in the network may be promoted to a producer node for each round to generate a block.

Specifically, the round may start from a preset time point. The round may be divided into a plurality of rounds. In the N-round, a plurality of promoteable nodes may be selected in advance before the start of the N-round (before the start of the N-1 round or the first round). In addition, a node selected as a producer node can maintain the status of the producer node for a permission period within one round. Promotable nodes can be promoted to a producer node in a predetermined order. For example, the first to nth nodes that can be promoted may be promoted to the producer node at the start of their permission period in order. Accordingly, the second node may be promoted after the first node is promoted, and then the third node may be promoted. Nodes promoted in a particular round may lose their promotion status at the same time when the round ends. In some embodiments, nodes may be promoted at the same time interval, but are not limited thereto.

There may be multiple permit periods per round. At the start of the permission period, a node that can be promoted is promoted to a producer node, and the status of the producer node can be continued until the end of the permission period. The end of the permit period may coincide with the end of the round. The start time of each permission period of each node that can be promoted to the producer node may be different from each other. Therefore, the duration of the status of the producer node for each round may be different for each producer node.

In addition, the promoteable state of the promoteable nodes selected before the start of the N round may be maintained until the N + M round. Therefore, it is possible to reselect nodes that can be promoted before the N + M + 1 round starts. And, in the next round, the N + 1 round, a node that is the next sequence number of the producer node promoted last in the N round may be the first producer node.

In another aspect, the next successive node or producer node of the producer node that generated the candidate block recognized as the approval block in the N round may be the first promotion node of the N + 1 round. That is, the next sequence node of the producer node that generated the approval block of the previous round becomes the first producer node of the next round. This makes it difficult to predict the node to be promoted in the next round, thereby improving the security of the system.

Meanwhile, the block header of each of the candidate blocks generated by the producer node may include voting information of the previous block. That is, the voting information related to the previous block, which can confirm that the previous block is the last approved block by obtaining more votes than the preset number of votes, may be included in the block header of the current block. Therefore, each of the blocks connected to the blockchain may include voting information of the previous block.

In addition, a plurality of producer nodes having block generation authority for each round may increase as time passes on each round. Accordingly, it can be agreed that blocks generated by at least some of the plurality of producer nodes are competing and the block selected as the only candidate is updated in the blockchain.

More specifically, a first node of any one of a plurality of nodes that can be promoted to a producer node having a block generation status at a predetermined time point for each round receives a candidate block in the Nth round, and the received candidate block It is possible to determine whether the valid candidate block, the valid candidate block is an unauthorized block, and determine whether the unauthorized block is an initial received candidate block, to determine whether to approve the approved block or not. In addition, the first reception candidate block may be a candidate block first received by the first node within the Nth round.

In addition, the node may propagate the initial reception candidate block and voting information about it to other nodes.

In addition, among the unapproved blocks generated in the Nth round, an unapproved block having a vote count equal to or greater than a preset value may be recognized as an approval block.

In addition, all nodes promoted to the producer node in the Nth round lose their producer node status in the N + 1th round, and the next sequential node of the node generating the candidate block recognized as the approval block is the N + 1th round. Can be promoted to the first producer node.

In addition, if there is no unapproved block in the Nth round among the plurality of unapproved blocks, the number of votes exceeds a predetermined value (for example, an unapproved block having more than 2/3 of the number of voteable nodes), a revoting round is During the re-voting round period, re-voting for the plurality of unauthorized blocks may be performed according to a preset priority. Generation of a new candidate block may be stopped during the re-voting round. And when the re-voting round ends, the next round may start.

In addition, when the re-voting is performed, a plurality of nodes capable of voting may re-approval for an unapproved block that has obtained a vote count equal to or greater than a preset value among the plurality of unapproved blocks. In another aspect, when the re-voting is performed, a plurality of voteable nodes may be re-voted to approve the non-approved block having the highest number of votes among the plurality of non-approved blocks.

In addition, when the re-voting is performed, if there are a plurality of non-approved blocks having a vote count equal to or greater than a preset value among the plurality of non-approved blocks, the unapproved blocks generated by the first promoted node among the nodes that generated each of the plurality of unapproved blocks You may vote again for approval. The first promotion node is the node having the fastest promotion order from the Nth round to the producer node. In another aspect, when the re-voting is performed, if there are no plurality of unapproved blocks that have a number of votes equal to or greater than a preset value among the plurality of unapproved blocks, the first promoted node is generated among the nodes that have generated each of the plurality of unapproved blocks. You can also vote again to approve one unapproved block.

In addition, when determining whether the candidate block is valid, it is determined whether or not the node that generated the received candidate block is promoted, and when the received candidate block is a block generated by the promoted node, the received candidate block is a valid candidate block Can also be admitted. Alternatively, if it is not a valid candidate block, the received candidate block may be discarded.

In addition, when determining whether the valid candidate block is an unauthorized block, it is determined whether or not a next block including a voting result of a predetermined value or more for the valid candidate block is present, and if the next block exists, the valid candidate block is used as an approval block. Acknowledgment may request synchronization of the authorization block to the distributed network. That is, the received valid candidate block is not a candidate block to be agreed upon in this round, but a previously agreed approval block to which synchronization has already been completed.

In addition, a second node of any one of the plurality of nodes that may be promoted to a producer node having a block generation status at a predetermined time point for each round is promoted in the Nth round, and the second within the Nth round. The node determines whether to receive the pre-promotion candidate block, and when the pre-promotion candidate block is not received, creates a candidate block including voting information in the last block on the blockchain to which the new block is connected, and votes on the generated candidate block. , The candidate block and voting information may be transmitted to another node. The new block becomes an approval block approved in the Nth round. If a node promoted as a producer node has already received a candidate block before promotion, a new candidate block is not generated.

In another aspect, the second node promoted in the Nth round receives a candidate block generated by another node, determines whether the received candidate block is a valid candidate block, and determines whether the valid candidate block is an unauthorized block , The unauthorized block may be transmitted to another node. And if it is not a valid candidate block, the received candidate block is discarded. In addition, if it is not an unauthorized block, the approved block is updated to the node's own blockchain through blockchain synchronization with the previously agreed approval block.

On the other hand, nodes can propagate candidate blocks, approval blocks, voting information, and re-voting information received from other nodes on the network. In addition, the nodes can propagate the generated candidate block, the approved approval block, and the generated voting information and re-voting information on the network. In addition, the node promoted to the producer node may be generated by limiting the candidate block only once in the round at the time of promotion. Also, the voting rights of nodes are limited to one time. In addition, in the re-voting round, only one voting right is obtained each time a re-voting starts. Therefore, it is not possible to vote for duplicate voting or two or more candidate blocks. In addition, a candidate block having an approved vote count of 2/3 or more of the number of voteable nodes among the candidate blocks may be agreed as an approval block. In addition, the transaction history collected when the candidate block is generated is included in the candidate block.

The embodiments according to the present invention described above may be implemented in the form of program instructions that can be executed through various computer components and can be recorded in a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, or the like alone or in combination. The program instructions recorded on the computer-readable recording medium may be specially designed and configured for the present invention or may be known and usable by those skilled in the computer software field. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magneto-optical media such as floptical disks. medium), and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device can be changed to one or more software modules to perform the processing according to the present invention, and vice versa.

The specific implementations described in the present invention are examples, and do not limit the scope of the present invention in any way. For brevity of the specification, descriptions of conventional electronic configurations, control systems, software, and other functional aspects of the systems may be omitted. In addition, the connection or connecting members of the lines between the components shown in the drawings are illustrative examples of functional connections and / or physical or circuit connections, and in the actual device, alternative or additional various functional connections, physical It can be represented as a connection, or circuit connections. In addition, unless specifically mentioned, such as “essential”, “importantly”, etc., it may not be a necessary component for application of the present invention.

In addition, the detailed description of the present invention has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those of ordinary skill in the art will appreciate the spirit of the present invention as set forth in the claims below. And it will be understood that various modifications and changes can be made to the present invention without departing from the technical scope. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

Claims (7)

As a method of operating a blockchain-based advertising service system composed of a distributed network of multiple nodes,
Including the step of allowing the advertising service to be performed in the distributed network according to the established smart contract;
The smart contract,
A first block including a first data record related to advertisement specific information and advertisement fee execution information is shared with the plurality of nodes,
A second block including a second data record related to the collected advertisement performance information is generated and shared with the plurality of nodes,
The transaction history between the two nodes for the advertisement charges calculated based on the first and second data records is generated and shared with the plurality of nodes,
A third block including the at least one transaction history is generated and shared with the plurality of nodes,
And the stored blockchain is updated based on communication from the distributed network such that the blockchain stored in at least one node among the plurality of nodes includes the first to third blocks.
How the blockchain-based advertising service system works. According to claim 1,
The plurality of nodes includes at least one advertiser node, and a service node that aggregates performance of advertisements requested by the advertiser node.
How the blockchain-based advertising service system works. According to claim 1,
The second block including the second data record related to the collected advertisement performance information is generated and shared with the plurality of nodes.
Share the collected advertisement performance information to the plurality of nodes,
Any one of the plurality of nodes generates a second block including a second data record related to the collected advertisement performance information and shares it with the plurality of nodes,
Nodes that have received the second block verify the validity of the second block by comparing the stored advertisement performance information with the second data record of the second block.
How the blockchain-based advertising service system works. According to claim 1,
The transaction history between the two nodes for the advertisement charges calculated based on the first and second data records is generated and shared with the plurality of nodes.
Any one of the advertiser node and the service node serving the advertisement generates transaction details regarding the transfer of coins corresponding to the advertisement fee,
The node that generated the transaction history transmits the transaction history to another node,
The node receiving the transaction history verifies the validity of the transaction history,
It is to keep a list of validated transactions in a temporary list.
How the blockchain-based advertising service system works. According to claim 4,
To verify the validity of the transaction details,
And verifying transaction details regarding the transfer of the coin based on the first and second data records.
How the blockchain-based advertising service system works. The method of claim 5,
To verify the validity of the transaction details,
Further comprising the step of verifying the validity of the transaction history by receiving a digital signature for the transaction history
How the blockchain-based advertising service system works. A computer program stored in a non-transitory computer-readable medium including instructions executable by at least one processor of at least one node of a blockchain-based advertisement service system composed of a distributed network of a plurality of nodes,
The above commands,
And allowing an advertisement service to be performed in the distributed network according to the established smart contract,
The smart contract,
A first block including a first data record related to advertisement specific information and advertisement fee execution information is shared with the plurality of nodes,
A second block including a second data record related to the collected advertisement performance information is generated and shared with the plurality of nodes,
The transaction history between the two nodes for the advertisement charges calculated based on the first and second data records is generated and shared with the plurality of nodes,
A third block including the at least one transaction history is generated and shared with the plurality of nodes,
And the stored blockchain is updated based on communication from the distributed network such that the blockchain stored in at least one node among the plurality of nodes includes the first to third blocks.
A computer program stored on a non-transitory computer readable medium.

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