KR20240062455A - Electronic device providing NFT(Non-Fungible Token) transaction method between users and a control of the electronic device - Google Patents

Abstract

An electronic device is disclosed. The electronic device includes a communication interface that includes circuitry, a memory that stores at least one instruction, and, when a request for transfer of ownership for the content is received, identifies an owner and purchaser for the content based on the request for transfer of ownership, and, based on the identified owner, A first smart contract related to the sale of content is created, a second smart contract related to the purchase of content is created based on the identified buyer, and a first transaction satisfies the first smart contract. Once the data is generated and the second transaction data satisfying the second smart contract is generated, one or more processors destroy the first token of the owner associated with the content and generate a second token of the purchaser associated with the content.

Description

Electronic device providing NFT (Non-Fungible Token) transaction method between users and a control of the electronic device }

The present invention relates to an electronic device and a control method thereof, and more specifically, to an electronic device that provides a NFT transaction method between users and a control method thereof.

A decentralized network is a network that is distinct from a centralized network where decisions are made by a central server. A decentralized network may refer to a network in which decisions are made according to the consensus algorithm of nodes participating in the decentralized network. A distributed ledger may refer to a ledger in which transaction details are distributed and stored across multiple nodes.

The distributed ledger that exists in the decentralized network may be stored in each node participating in the decentralized network. The distributed ledger that exists in the decentralized network can be updated according to the consensus algorithm of the nodes participating in the decentralized network.

Therefore, a decentralized network with a distributed ledger has the advantage of not requiring a centralized server. Accordingly, the demand for various solutions using a decentralized network with a distributed ledger is increasing.

In order to achieve the above object, an electronic device according to an embodiment of the present disclosure, when a communication interface including a circuit, a memory storing at least one instruction, and a request for transfer of ownership of content is received, the request for transfer of ownership is received. Identifying the owner and buyer for the content based on the content, creating a first smart contract related to the sale of the content based on the identified owner, and purchasing the content based on the identified buyer When a second smart contract related to is generated, first transaction data satisfying the first smart contract is generated, and second transaction data satisfying the second smart contract is generated, the content related to the and one or more processors to destroy the owner's first token and generate the purchaser's second token associated with the content.

Meanwhile, according to an embodiment of the present disclosure, a control method of an electronic device includes, when a request for transfer of ownership of content is received, identifying an owner and buyer for the content based on the request for transfer of ownership, and assigning the identified owner to the owner. generating a first smart contract related to the sale of the content based on the content, generating a second smart contract related to the purchase of the content based on the identified buyer, and satisfying the first smart contract. When first transaction data that satisfies the second smart contract is generated, the owner's first token associated with the content is destroyed, and the buyer's second token associated with the content is generated. It includes the step of generating.

According to an embodiment for achieving the above-described object of the present disclosure, in a computer-readable recording medium including a program executing a control method of an electronic device, the control method of the electronic device includes a request for transfer of ownership of content. Once received, identifying an owner and buyer for the content based on the ownership transfer request, creating a first smart contract related to the sale of the content based on the identified owner, the identification generating a second smart contract related to the purchase of the content based on the purchased buyer, and generating first transaction data that satisfies the first smart contract, and generating second transaction data that satisfies the second smart contract. If so, destroying the owner's first token associated with the content and generating a second token of the purchaser associated with the content.

1 is a block diagram showing the configuration of an electronic device according to an embodiment of the present disclosure.
Figure 2 is a sequence diagram for explaining a non-fungible token (NFT) transaction method according to an embodiment of the present disclosure.
Figure 3 is a sequence diagram for explaining an NFT transaction method according to an embodiment of the present disclosure.
Figure 4 is a sequence diagram for explaining an NFT transaction method according to an embodiment of the present disclosure.
Figure 5 is a diagram for explaining a UI for selecting an NFT transaction broker (broker) according to an embodiment of the present disclosure.
Figure 6 is a diagram illustrating a UI for selecting an NFT transaction broker according to an embodiment of the present disclosure.
FIG. 7 is a diagram for explaining an electronic device that displays content according to an embodiment of the present disclosure.
FIG. 8 is a diagram for explaining an electronic device that displays a content list according to an embodiment of the present disclosure.
FIG. 9 is a flowchart illustrating a method of controlling an electronic device according to an embodiment of the present disclosure.

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

The terms used in the embodiments of the present disclosure have selected general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. . In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description part of the relevant disclosure. Therefore, the terms used in this disclosure should be defined based on the meaning of the term and the overall content of this disclosure, rather than simply the name of the term.

In this specification, expressions such as “have,” “may have,” “includes,” or “may include” refer to the presence of the corresponding feature (e.g., a numerical value, function, operation, or component such as a part). , and does not rule out the existence of additional features.

The expression at least one of A or/and B should be understood as referring to either “A” or “B” or “A and B”.

As used herein, expressions such as “first,” “second,” “first,” or “second,” can modify various components regardless of order and/or importance, and can refer to one component. It is only used to distinguish from other components and does not limit the components.

A component (e.g., a first component) is “(operatively or communicatively) coupled with/to” another component (e.g., a second component). When referred to as “connected to,” it should be understood that a certain component can be connected directly to another component or connected through another component (e.g., a third component).

Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “consist of” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are intended to indicate the presence of one or more other It should be understood that this does not exclude in advance the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

In the present disclosure, a “module” or “unit” performs at least one function or operation, and may be implemented as hardware or software, or as a combination of hardware and software. Additionally, a plurality of “modules” or a plurality of “units” are integrated into at least one module and implemented by at least one processor (not shown), except for “modules” or “units” that need to be implemented with specific hardware. It can be.

In this specification, the term user may refer to a person using an electronic device or a device (eg, an artificial intelligence electronic device) using an electronic device.

Hereinafter, an embodiment of the present disclosure will be described in more detail with reference to the attached drawings.

1 is a block diagram showing the configuration of an electronic device according to an embodiment of the present disclosure.

As shown in FIG. 1 , the electronic device 100 includes a communication interface 110, a memory 120, and one or more processors 130.

The electronic device 100 according to an embodiment of the present disclosure may be implemented as a TV, but is not limited to this and may be implemented as a video wall, large format display (LFD), digital signage, or digital signage (DID). Of course, it can also be implemented as a display device with a display function, such as an information display, projector display, etc. In addition, when the electronic device 100 is implemented as a display device, the display device may include liquid crystal display (LCD), organic light-emitting diode (OLED), liquid crystal on silicon (LCoS), digital light processing (DLP), and QD ( It may include various types of displays, such as quantum dot (quantum dot) display panels and QLED (quantum dot light-emitting diodes).

The electronic device 100 according to one example includes a user terminal device (e.g., a smartphone), a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, and a server. ), a PDA, a portable multimedia player (PMP), an MP3 player, a medical device, a camera, a virtual reality (VR) implementation device, or a wearable device. Here, wearable devices may be accessory-type (e.g., watches, rings, bracelets, anklets, necklaces, glasses, contact lenses, or head-mounted-device (HMD)), fabric- or clothing-integrated (e.g., electronic garments), etc. ), body-attached (e.g., skin pad or tattoo), or bioimplantable circuit.

As an example, the electronic device 100 may include a television, a digital video disk (DVD) player, an audio system, a refrigerator, an air conditioner, a vacuum cleaner, an oven, a microwave oven, a washing machine, an air purifier, a set-top box, a home automation control panel, and a security control panel. , a media box (e.g. Samsung HomeSync ^TM , Apple TV ^TM , or Google TV ^TM ), a game console (e.g. Xbox ^TM , PlayStation ^TM ), an electronic dictionary, an electronic key, a camcorder, or an electronic picture frame. there is.

As an example, the electronic device 100 may include various medical devices (e.g., various portable medical measurement devices (blood sugar meter, heart rate meter, blood pressure meter, or body temperature meter, etc.), magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), CT (computed tomography), radiography, or ultrasound, etc.), navigation devices, satellite navigation systems (GNSS (global navigation satellite system)), EDR (event data recorder), FDR (flight data recorder), automobile infotainment devices, marine electronic equipment (e.g. marine navigation devices, gyro compasses, etc.), avionics, security devices, head units for vehicles, industrial or home robots, drones, ATMs at financial institutions, point-of-sale (POS) at stores. of sales), or Internet of Things devices (e.g., light bulbs, various sensors, sprinkler devices, fire alarms, thermostats, street lights, toasters, exercise equipment, hot water tanks, heaters, boilers, etc.).

The communication interface 110 according to one embodiment communicates with an external device and receives various types of data and information. For example, the communication interface 110 includes AP-based Wi-Fi (Wireless LAN network), Bluetooth, Zigbee, wired/wireless LAN (Local Area Network), WAN (Wide Area Network), Ethernet, IEEE 1394, HDMI (High-Definition Multimedia Interface), USB (Universal Serial Bus), MHL (Mobile High-Definition Link), AES/EBU (Audio Engineering Society/ European Broadcasting Union), Optical , home appliances (e.g., display devices, air conditioners, air purifiers, etc.), external storage media (e.g., USB memory), and external servers (e.g., web hard drives) through communication methods such as coaxial, etc. ) can receive various types of data, information, etc.

In particular, the communication interface 110 according to one embodiment may perform communication with a blockchain network (e.g., Bitcoin network, Ethereum network, etc.) under the control of the processor 130. .

Here, the blockchain network may include multiple nodes and ledgers. As an example, each of the plurality of nodes included in the blockchain network corresponds to the electronic device 100 shown in FIG. 1, and each of the plurality of nodes can process data and communicate with other nodes. For example, each of the plurality of nodes may include a personal computer (PC), a server, a user terminal device (eg, a mobile device), etc.

As an example, a blockchain network may be a network in which multiple nodes are connected in a peer-to-peer (P2P) manner. As an example, each of a plurality of nodes included in a blockchain network can store a ledger. A blockchain network may be called a decentralized network, but hereinafter, for convenience of explanation, it will be collectively referred to as a blockchain network. For a detailed description of the blockchain network, refer to Figures 2 and 3.

The memory 120 according to one example may store data necessary for one embodiment of the present disclosure. The memory 120 may be implemented as a memory embedded in the electronic device 100 or as a memory detachable from the electronic device 100 depending on the data storage purpose.

For example, data for driving the electronic device 100 is stored in a memory embedded in the electronic device 100, and data for expansion functions of the electronic device 100 are stored in a memory that is removable from the electronic device 100. It can be saved in . Meanwhile, in the case of memory embedded in the electronic device 100, volatile memory (e.g., dynamic RAM (DRAM), static RAM (SRAM), or synchronous dynamic RAM (SDRAM), etc.), non-volatile memory ( Examples: one time programmable ROM (OTPROM), programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EEPROM), mask ROM, flash ROM, flash memory (e.g. NAND flash or NOR flash, etc.) ), a hard drive, or a solid state drive (SSD). Additionally, in the case of a memory that is removable from the electronic device 100, a memory card (eg, compact flash (CF)) may be used. ), SD (secure digital), Micro-SD (micro secure digital), Mini-SD (mini secure digital), xD (extreme digital), MMC (multi-media card), etc.), external memory that can be connected to the USB port ( For example, it may be implemented in a form such as USB memory).

According to one example, the memory 120 may store at least one instruction or a computer program including instructions for controlling the electronic device 100.

According to an embodiment of the present disclosure, various data may be stored in the external memory of the processor 130, and some of the data may be stored in the internal memory of the processor 130 and the rest may be stored in the external memory.

One or more processors 130 according to an embodiment of the present disclosure controls the overall operation of the electronic device 100.

According to an embodiment of the present disclosure, the one or more processors 130 may be implemented as a digital signal processor (DSP), a microprocessor, or a time controller (TCON) that processes digital signals. However, , but is not limited to, a central processing unit (CPU), a micro controller unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), or communication Additionally, one or more processors 130 may include one or more of a communication processor (CP), an ARM processor, and an artificial intelligence (AI) processor, or may be defined by the corresponding terminology. One or more processors 130 may be implemented in the form of a system on chip (LSI), large scale integration (LSI), or a field programmable gate array (FPGA). ), you can perform various functions.

One or more processors 130 include a CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerated Processing Unit), MIC (Many Integrated Core), DSP (Digital Signal Processor), NPU (Neural Processing Unit), and hardware. It may include one or more of an accelerator or machine learning accelerator. One or more processors 130 may control one or any combination of other components of the electronic device and may perform operations related to communication or data processing. One or more processors 130 may execute one or more programs or instructions stored in memory. For example, one or more processors 130 may perform a method according to an embodiment of the present disclosure by executing one or more instructions stored in memory.

When the method according to an embodiment of the present disclosure includes a plurality of operations, the plurality of operations may be performed by one processor or by a plurality of processors. For example, when the first operation, the second operation, and the third operation are performed by the method according to one embodiment, the first operation, the second operation, and the third operation may all be performed by the first processor. , the first operation and the second operation may be performed by a first processor (e.g., a general-purpose processor) and the third operation may be performed by a second processor (e.g., an artificial intelligence-specific processor).

The one or more processors 130 may be implemented as a single core processor including one core, or one or more multi-cores including a plurality of cores (e.g., homogeneous multi-core or heterogeneous multi-core). It may also be implemented as a processor (multicore processor). When one or more processors 130 are implemented as multi-core processors, each of the plurality of cores included in the multi-core processor may include processor internal memory such as cache memory and on-chip memory, and may include a plurality of cores. A common cache shared by cores may be included in multi-core processors. In addition, each of the plurality of cores (or some of the plurality of cores) included in the multi-core processor may independently read and perform program instructions for implementing the method according to an embodiment of the present disclosure, and all of the plurality of cores may (or part of) may be linked to read and perform program instructions for implementing the method according to an embodiment of the present disclosure.

When a method according to an embodiment of the present disclosure includes a plurality of operations, the plurality of operations may be performed by one core among a plurality of cores included in a multi-core processor, or may be performed by a plurality of cores. there is. For example, when the first operation, the second operation, and the third operation are performed by the method according to an embodiment, the first operation, the second operation, and the third operation are all performed by the first operation included in the multi-core processor. It may be performed by a core, and the first operation and the second operation may be performed by the first core included in the multi-core processor, and the third operation may be performed by the second core included in the multi-core processor.

In embodiments of the present disclosure, one or more processors 130 are included in a system-on-chip (SoC), a single-core processor, a multi-core processor, or a single-core processor or multi-core processor in which one or more processors and other electronic components are integrated. It may mean a core, where the core may be implemented as a CPU, GPU, APU, MIC, DSP, NPU, hardware accelerator, or machine learning accelerator, but embodiments of the present disclosure are not limited thereto.

In particular, when an ownership transfer request for content is received, one or more processors 130 according to an example may identify the owner and purchaser of the content based on the ownership transfer request.

Here, the request to transfer ownership of the content includes a request to transfer ownership of the NFT related to the content, the owner of the content includes the owner of the NFT related to the content, and the buyer of the content includes the owner of the NFT related to the content. May include buyers.

Subsequently, one or more processors 130 may create a first smart contract related to the sale of content based on the identified owner. Additionally, one or more processors 130 may generate a second smart contract related to the purchase of content based on the identified purchaser.

Then, the one or more processors 130 destroy the owner's first token associated with the content when first transaction data satisfying the first smart contract is generated and second transaction data satisfying the second smart contract is generated. , it is possible to generate a second token of the buyer related to the content.

A detailed description of this will be made with reference to FIGS. 2 and 3.

Figure 2 is a sequence diagram for explaining a non-fungible token (NFT) transaction method according to an embodiment of the present disclosure.

First, multiple nodes included in the blockchain network contain transaction data for transactions through a consensus algorithm (e.g., Proof of Work (PoW), Proof of Stake (PoS)). Blocks can be created.

Here, the transaction data may be data generated from an external device (eg, a first external electronic device, a second external electronic device, etc.), a plurality of nodes, or a combination thereof.

As an example, transaction data is data for recording the contents of a normally occurring transaction in the ledger, and transaction data includes data representing transaction details between accounts (e.g., external devices, multiple nodes, or a combination thereof). can do.

Here, transactions may include various actions that cause changes to the contents of the ledger. Transaction data that has been properly signed may be recorded in the ledger, and transaction data that has not been signed normally may not be recorded in the ledger.

As an example, whether transaction data has been recorded in a block by a transaction can be tracked through the transaction ID, and transaction data can be recorded in the ledger using a smart contract.

According to one embodiment, a plurality of nodes included in the blockchain network may transmit data included in the ledger to an external electronic device based on a request from the external electronic device. Here, the ledger may be data in the form of a chain in which a block containing transaction data for at least one transaction refers to a previous block containing transaction data for at least one other transaction. At least a portion of the ledger may be stored in each of a plurality of nodes included in the blockchain network.

In one example, the smart contract may be a smart contract for a specified token. For example, a smart contract is a non-fungible token (NFT) (e.g., a token based on ERC 721 (Ethereum request for comment 721), which, unlike tokens based on ERC 20, has non-fungible characteristics. It may be a smart contract for a token). Here, a non-fungible token (NFT) can have a unique value that cannot be replaced with other tokens.

As an example, a token may represent an asset that can be traded through a smart contract on a blockchain network. The smart contract may include the token identifier, content identifier, owner identifier, transaction history, etc. of the non-fungible token (NFT).

For example, since the token identifier corresponding to the content identifier is a unique token identifier that cannot be replaced, the content can be evaluated as unique content that cannot be replaced with other content (for example, even if the other content is visually identical to the content). there is.

As shown in Figure 2, when the ownership of the content is transferred from the owner 10 (or seller) to the buyer 20, information on the non-fungible token (NFT) related to the content may be updated. As an example, the first external electronic device corresponding to the owner 10, the second external electronic device corresponding to the buyer 20, etc., use the owner identifier of the non-fungible token (NFT) related to the content when transferring ownership of the content. Transaction data for changing from seller 10 to buyer 20 can be created.

For example, the second external electronic device corresponding to the buyer 20 sends an ownership transfer request for a non-fungible token (NFT) (hereinafter referred to as target NFT) related to the content desired to be purchased through the blockchain network. It can be transmitted (S210).

Subsequently, the second external electronic device can identify the identifier (ID) of the purchaser 20 and the identifier (ID) of the owner of the target NFT based on the smart contract (S220).

Subsequently, the second external electronic device can create a smart contract. Here, a smart contract may refer to a system that protocols (or programs) contractual benefits and counter benefits and automatically executes counter benefits when the benefits are met. Here, benefits and counter-benefits may include essential conditions for a contract to be established.

As an example, the second external electronic device may transfer the amount for purchasing content from the purchaser 20 to the owner 10 (S230). Here, the amount for purchasing content may be a fungible token corresponding to the value of a non-fungible token (NFT). Here, the fungible token may be based on the same blockchain network as the non-fungible token.

Subsequently, when the amount is transferred (payment) in step S230, the smart contract can transfer the ownership of the non-fungible token (NFT) related to the content from the transferor (owner 10) to the transferee (buyer 20) ( benefit in return) (S240).

According to an embodiment of the present disclosure, the second external electronic device may transmit and record transaction data related to the purchase of content to the blockchain network according to a smart contract (S250).

Here, the transaction data related to the purchase of content includes the identifier of the token related to the content (e.g., the identifier of the target NFT), the identifier of the transferor (i.e., owner 10), and the transferee (i.e., buyer 20). identifier) and transaction details (e.g., transfer details performed in step S230, time of purchase, etc.).

Meanwhile, in order to transfer ownership of the Target NFT as shown in Figure 2, the identifier of the owner 10 and the identifier of the buyer 20 are public keys (or addresses) associated with the same blockchain network, and the Target NFT It must also be an NFT based on the same blockchain network. Additionally, the amount (e.g., fungible token) transferred by the buyer 20 to the owner 10 in step S230 must also be a token based on the same blockchain network.

Meanwhile, in FIG. 2 , for convenience of explanation, a first external electronic device and a second external electronic device are assumed, but the first external electronic device or the second external electronic device is an electronic device ( 100), and the owner 10 or purchaser 20 may include a user of the electronic device 100.

Hereinafter, when the identifier of the owner 10 and the identifier of the buyer 20 are public keys associated with different blockchain networks (for example, the identifier of the owner 10 is the public key associated with blockchain network 'A' and , when the identifier of the buyer 20 is a public key associated with blockchain network 'B'), how to transfer ownership of the target NFT is explained.

Figure 3 is a sequence diagram for explaining an NFT transaction method according to an embodiment of the present disclosure.

Referring to Figure 3, the token related to the content for which ownership transfer is requested, that is, Target NFT, is an NFT based on blockchain network 'A' (hereinafter referred to as the first blockchain network), and the buyer (20) is The amount to be transferred (or paid) to the owner 10 may be a token based on blockchain network 'B' (hereinafter, second blockchain network).

The electronic device 100 according to an example may provide a transaction method that allows transfer of ownership of the NFT even when the blockchain network used by the owner 10 of the target NFT and the blockchain network used by the purchaser 20 are different.

For convenience of explanation, Figure 3 shows that the purchaser 20 is a user of the electronic device 100, the identifier (ID) of the purchaser 20 is a public key associated with the second blockchain network, and the identifier of the owner 10 ( ID) is a public key associated with the first blockchain network.

First, when the purchaser 20 transmits an ownership transfer request for the target NFT to the electronic device 100, the one or more processors 130 are connected to the ledger (e.g., ledger) on the first blockchain network. The identifier (ID) of the owner 10 of the target NFT can be identified based on (transaction data within, etc.). As an example, the identifier (ID) of the owner 10 may be a public key associated with the first blockchain network.

Subsequently, one or more processors 130 may create a smart contract (hereinafter referred to as first smart contract, SC1) for burning the existing NFT. Here, since the first smart contract is a contract between the electronic device 100 and the owner 10, it may mean a contract related to the sale of NFTs related to content.

Additionally, one or more processors 130 may create a smart contract (hereinafter referred to as a second smart contract, SC2) for creating a new NFT. Here, since the second smart contract is a contract between the electronic device 100 and the purchaser 20, it may mean a contract related to the purchase of NFT related to content.

Here, rather than recording transaction data for the transfer of ownership of the NFT in each of the first blockchain network and the second blockchain network using the identifier of the owner 10 and the identifier of the buyer 20, the owner 10 A first smart contract (e.g., a contract related to the sale of NFT or burning of NFT) to the first blockchain network using the identifier and the identifier of the electronic device 100 (or the identifier of the broker) ) records transaction data for, and uses the identifier of the buyer 20 and the identifier of the electronic device 100 to create a second smart contract (e.g., purchase of NFT or creation of NFT) in the second blockchain network (Minting) By recording transaction data for contracts related to ), ownership of NFTs can be transferred between different blockchain networks.

Here, the first smart contract may be a contract that burns the existing NFT (counter-payment) when the amount corresponding to the existing NFT is transferred (payment). Additionally, the second smart contract may be a contract that transfers (counterpayment) an amount corresponding to the new NFT when a new NFT is created (minting) (payment). Here, the existing NFT will be collectively referred to as the first token, and the new NFT will be collectively referred to as the second token.

In the first smart contract, the identifier of the owner 10 and the identifier of the electronic device 100 are each a public key associated with the first blockchain network, and in the second smart contract, the identifier of the purchaser 20 and the identifier of the electronic device 100 are each a public key associated with the first blockchain network. Each identifier may be a public key associated with the second blockchain network.

According to one example, one or more processors 130 provide payment information corresponding to the content as an identifier of the owner 10, that is, an amount corresponding to the NFT related to the content (e.g., a token corresponding to the value of the NFT) to the owner ( 10) can be transmitted to (S310). Here, the content-related NFT may be an NFT based on the first blockchain network, and the token corresponding to the value of the NFT may be a token based on the first blockchain network.

Subsequently, one or more processors 130 generate (or issue) a second blockchain network-based token identifier corresponding to the content identifier included in the smart contract of the existing NFT, based on the identifier of the buyer 20 (Minting) ) can be done (S320).

Subsequently, one or more processors 130 may burn the existing NFT (S330). For example, one or more processors 130 may transmit an existing NFT to an address where no one knows the private key. Here, an address for which no one knows the private key may be called a black hole address (or eater address).

Subsequently, one or more processors 130 provide payment information corresponding to the content as an identifier of the electronic device 100, that is, an amount corresponding to the NFT related to the content (e.g., a token corresponding to the value of the NFT) to the purchaser (20). ) can be received from (S340). Here, the NFT related to the content may be an NFT based on the second blockchain network, and the token corresponding to the value of the NFT received from the buyer 20 may be a token based on the second blockchain network.

Meanwhile, when both payment (step S310) and counterpayment (step S330) according to the essential conditions on the first smart contract occur (that is, when the conditions set in the first smart contract are satisfied), the one or more processors 130 1 The first transaction data indicating the establishment of a contract according to a smart contract can be recorded in the first blockchain network (S350).

In addition, the one or more processors 130 perform the 2 The second transaction data indicating the establishment of a contract according to the smart contract can be recorded in the second blockchain network (S360).

In FIG. 3, the identifier (ID) of the owner 10 may be referred to as owner 10 information including the public key (or address) of the owner 10 according to the first blockchain network, but hereinafter, the owner ( It will be collectively referred to as the identifier (10) of 10).

In addition, the identifier (ID) of the buyer 20 may be referred to as buyer 20 information including the public key (or address) of the buyer 20 according to the second blockchain network, but hereinafter, the buyer 20 It will be collectively referred to as identifier (10).

Figure 3 shows a sequence diagram of a method in which the buyer 20 purchases content using the electronic device 100 as a broker, assuming that the user of the electronic device 100 is the buyer 20. Of course, this is an example and is not limited thereto.

Figure 4 is a sequence diagram for explaining an NFT transaction method according to an embodiment of the present disclosure.

FIG. 4 is a sequence diagram illustrating a method in which the owner 10 sells content using the electronic device 100 as a broker, assuming that the user of the electronic device 100 is the owner 10. .

Meanwhile, when the conditions set in the first smart contract are satisfied, the owner 10 can automatically pay a fee to the electronic device 100 according to the protocol (programming) on the first smart contract. For example, the owner 10 may pay the electronic device 100 a certain token (eg, fungible token) based on the first blockchain network.

Additionally, when the conditions set in the second smart contract are satisfied, the buyer 20 can automatically pay a fee to the electronic device 100 according to the protocol (programming) on the second smart contract. For example, the buyer 20 may pay the electronic device 100 a certain token (eg, fungible token) based on the second blockchain network.

Each of steps S310 to S340 shown in FIGS. 3 and 4 involves the transaction of at least one of a plurality of transaction participants (i.e., the owner 10, the buyer 20, or the electronic device 100 (or broker)). Since this is the stage in which profits are generated for the participants, multiple transaction participants can sequentially generate steps S310 to S340.

Additionally, if steps S310 to S340 shown in FIGS. 3 and 4 occur sequentially, the probability of a threatening situation occurring to each of a plurality of transaction participants can be reduced (minimized).

For example, when one or more processors 130 transmit an amount corresponding to the NFT related to the content to the owner 10 in step S310, the NFT related to the content is burned in step S330 according to the first smart contract, so that the electronic device From the perspective of (100) and the buyer (20), there is no threatening situation where the owner (10) continues to claim ownership of the content, and from the perspective of the owner (10), there is a threat of not receiving the amount corresponding to the NFT transferred. No adverse situations occur.

For example, in step S320, if one or more processors 130 generate (or issue) (Minting) a second blockchain network-based token identifier corresponding to the content identifier included in the smart contract of the existing NFT, the second Since the amount corresponding to the NFT related to the content is received from the buyer 20 in step S340 according to the smart contract, from the perspective of the electronic device 100, there is a threat of not receiving the amount corresponding to the NFT related to the content from the buyer 20. No hostile situation occurs, and from the buyer 20's perspective, no threatening situation arises in which ownership of the content cannot be claimed (ownership of the NFT related to the content cannot be claimed).

In addition, since the electronic device 100 can receive a fee from the owner 10 and the purchaser 20 only when the conditions set in each of the first smart contract and the second smart contract are satisfied, steps S310 to S340 may occur sequentially. You can.

In addition, if steps S310 to S340 occur sequentially with only the owner (10) and buyer (20) using different blockchain networks as transaction participants, the amount corresponding to the NFT in steps S310 and S340 is transferred to a malicious third party. There is a threat of the NFT being transferred to a malicious third party between the S320 and S330 stages.

In various embodiments of the present disclosure, steps S310 to S340 are sequentially performed with the electronic device 100 using both different blockchain networks as transaction participants, in addition to the owner 10 and buyer 20 using different blockchain networks. Therefore, the probability of a threatening situation occurring to each of multiple transaction participants can be reduced (minimized).

Figure 5 is a diagram for explaining a UI for selecting an NFT transaction broker (broker) according to an embodiment of the present disclosure.

As shown in FIG. 3, if the buyer 20 is a user of the electronic device 100, one or more processors 130 may display the electronic device 100 and a list of various brokers in addition to the electronic device 100. You can.

For example, when the user of the electronic device 100 requests transfer of ownership of an NFT based on the same blockchain network or an NFT based on a different blockchain network, the electronic device 100 may request a transfer of ownership of an NFT based on a different blockchain network, as shown in FIG. 5. (List) can be displayed.

Subsequently, when one broker is selected among the plurality of brokers included in the broker list according to the user's selection, the selected broker operates as the electronic device 100 (i.e., broker) of FIGS. 3 and 4 and performs steps S310 to S310. Steps S340 can occur sequentially.

As an example, the broker list may provide identifiers (IDs), reputations, commissions, transaction details (total transaction volume, etc.), transaction success rates, etc. for each of a plurality of brokers. Here, the identifier corresponding to the broker may be a public key associated with the same blockchain network as the identifier of the user of the electronic device 100, or may be a unique identifier that can be identified even in a blockchain network that is different from the user's identifier. .

Figure 6 is a diagram illustrating a UI for selecting an NFT transaction broker according to an embodiment of the present disclosure.

As shown in FIG. 4, if the owner 10 is a user of the electronic device 100, one or more processors 130 may display the electronic device 100 and a list of various brokers in addition to the electronic device 100. You can.

As explained in Figure 5, as an example, the broker list may provide identifiers (ID), reputation, commission, transaction details (total transaction volume, etc.), transaction success rate, etc. for each of a plurality of brokers. . Additionally, the identifier corresponding to the broker may be a public key associated with the same blockchain network as the identifier of the user of the electronic device 100, or may be a unique identifier that can be identified even in a blockchain network that is different from the user's identifier. .

FIG. 7 is a diagram for explaining an electronic device that displays content according to an embodiment of the present disclosure.

Referring to FIG. 7, the electronic device 100 includes a display, and one or more processors 130 may control the display to display content based on NFTs associated with content owned by the user of the electronic device 100. there is.

For example, one or more processors 130, in addition to the content, based on the NFT related to the content, the name of the content (or content identifier), the copyright holder of the content (or the creator of the content), the time of purchase (or transaction) of the content details), etc. can be displayed.

For example, when steps S310 to S360 shown in FIG. 3 occur sequentially and the user of the electronic device 100 owns an NFT related to the content, the one or more processors 130 transmit the content through the communication interface 110. It is possible to receive and display the received content.

For example, in the content display mode of the electronic device 100, one or more processors 130 may display content based on NFTs associated with content owned by the user of the electronic device 100, and the electronic device 100 In the standby mode, one or more processors 130 may display content based on NFTs related to content owned by the user of the electronic device 100.

FIG. 8 is a diagram for explaining an electronic device that displays a content list according to an embodiment of the present disclosure.

Referring to FIG. 8, one or more processors 130 may control the display to display a content list based on NFTs related to content owned by the user of the electronic device 100.

For example, the user of the electronic device 100 owns a plurality of NFTs, and one or more processors 130 may generate and provide a list of the plurality of NFTs owned by the user.

For example, a list of multiple NFTs may include the name of the content corresponding to each of the multiple NFTs, the type (or form, etc.) of the content, owner 10 information (or identifier of the owner 10), etc. You can.

In addition, of course, one or more processors 130 may generate and provide a list of a plurality of NFTs whose ownership can be transferred or traded, in addition to the user of the electronic device 100.

For example, one or more processors 130 may generate a list of a plurality of tradable NFTs based on NFTs based on the same blockchain network as the user of the electronic device 100 or NFTs based on a different blockchain network. .

Here, as shown in Figure 8, the list of multiple tradable NFTs includes the name of the content corresponding to each of the multiple tradable NFTs, the type (or shape, etc.) of the content, and the owner 10 information (or owner (10) identifier), etc.

For example, when one NFT is selected according to the user's selection among a plurality of tradable NFTs, one or more processors 130 may provide a UI for selecting a broker for transferring ownership of the selected NFT, as shown in FIG. 5. You can.

FIG. 9 is a flowchart illustrating a method of controlling an electronic device according to an embodiment of the present disclosure.

In the control method of an electronic device according to an embodiment of the present disclosure, when a request for transfer of ownership of content is received, the owner and purchaser of the content are identified based on the request for transfer of ownership (S910).

Next, a first smart contract related to the sale of content is created based on the identified owner (S920).

Next, a second smart contract related to the purchase of content is created based on the identified buyer (S930).

Then, when first transaction data satisfying the first smart contract is generated and second transaction data satisfying the second smart contract is generated, the owner's first token associated with the content is destroyed, and the buyer's first token associated with the content is destroyed. 2 Generate a token (S940).

Here, each of the owner's first token and the buyer's second token related to the content may be a non-fungible token (NFT).

As an example, step S940 of destroying the first token and generating the second token transmits payment information corresponding to the content to owner information corresponding to the identified owner, and burns the first token related to the content. Generating first transaction data related to the sale of content, receiving payment information corresponding to the content from buyer information corresponding to the identified buyer, and generating (minting) a second token related to the content to generate second transaction data. It may include a creation step.

Here, in step S940 of destroying the first token and generating the second token, if the first transaction data satisfies the conditions set in the first smart contract created by the owner, the first transaction data is stored in the first blockchain (block). -chain) recording on the network, and if the second transaction data satisfies the conditions set in the second smart contract created by the purchaser, recording the second transaction data on the second blockchain network. there is.

As an example, step S940 of destroying the first token and generating the second token receives payment information from buyer information after transmitting payment information corresponding to the content to owner information, and when payment information is received from buyer information, It may include generating a second token after destroying the first token.

As an example of the present disclosure, the owner information may be a public key corresponding to the owner used in the first blockchain network, and the buyer information may be a public key corresponding to the buyer used in the second blockchain network.

As an example of the present disclosure, ownership of a first token may be recorded in a first blockchain network, and ownership of a second token may be recorded in a second blockchain network that is different from the first blockchain network.

Here, step S940 of extinguishing the first token and generating the second token includes, if the first smart contract is satisfied, extinguishing the ownership of the first token on the first blockchain network and if the second smart contract is satisfied, It may include creating ownership of the second token on the second blockchain network.

As an example, the request for transfer of ownership may include at least one of a request to sell the content or a request to purchase the content.

In one embodiment, the purchaser is a user of the electronic device, and the control method may further include receiving content through a communication interface and displaying the content when a second token is generated after expiring the first token. there is.

However, it goes without saying that various embodiments of the present disclosure can be applied not only to electronic devices but also to all electronic devices capable of communicating with external devices.

Meanwhile, the various embodiments described above may be implemented in a recording medium that can be read by a computer or similar device using software, hardware, or a combination thereof. In some cases, embodiments described herein may be implemented with a processor itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein.

Meanwhile, computer instructions for performing processing operations of an electronic device according to various embodiments of the present disclosure described above may be stored in a non-transitory computer-readable medium. Computer instructions stored in such a non-transitory computer-readable medium, when executed by a processor of a specific device, cause the specific device to perform processing operations in the electronic device 100 according to the various embodiments described above.

A non-transitory computer-readable medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short period of time, such as registers, caches, and memories. Specific examples of non-transitory computer-readable media may include CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, etc.

In the above, preferred embodiments of the present disclosure have been shown and described, but the present disclosure is not limited to the specific embodiments described above, and may be used in the technical field pertaining to the disclosure without departing from the gist of the disclosure as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical ideas or perspectives of the present disclosure.

100: electronic device 110: communication interface
120: memory 130: processor

Claims (20)

In electronic devices,
a communication interface including circuitry;
a memory storing at least one instruction; and
When a request to transfer ownership of content is received, identify the owner and purchaser of the content based on the request to transfer ownership,
Create a first smart contract related to the sale of the content based on the identified owner,
Create a second smart contract related to the purchase of the content based on the identified buyer,
When first transaction data satisfying the first smart contract is generated and second transaction data satisfying the second smart contract is generated, destroy the owner's first token related to the content, and An electronic device comprising: one or more processors that generate a second token of the purchaser associated with content. According to paragraph 1,
Each of the owner's first token and the purchaser's second token associated with the content,
An electronic device that is a non-fungible token (NFT). According to paragraph 1,
The one or more processors:
Transmitting payment information corresponding to the content to owner information corresponding to the identified owner, burning the first token related to the content to generate the first transaction data related to the sale of the content,
An electronic device that receives the payment information corresponding to the content from buyer information corresponding to the identified buyer, and generates the second transaction data by minting the second token related to the content. According to paragraph 3,
The one or more processors:
If the first transaction data satisfies the conditions set in the first smart contract created by the owner, the first transaction data is recorded on a first blockchain (block-chain) network,
An electronic device that records the second transaction data on a second blockchain network when the second transaction data satisfies the conditions set in the second smart contract created by the buyer. According to paragraph 3,
The one or more processors:
After transmitting payment information corresponding to the content to the owner information, receive the payment information from the buyer information,
When the payment information is received from the buyer information, the electronic device destroys the first token and then generates the second token. According to paragraph 3,
The above owner information is,
It is a public key corresponding to the owner used in the first blockchain network,
The buyer information is,
An electronic device, wherein the public key corresponding to the purchaser is used in a second blockchain network. According to paragraph 1,
Ownership of the first token is recorded in the first blockchain network,
Wherein ownership of the second token is recorded in a second blockchain network different from the first blockchain network. In clause 7,
The one or more processors:
When the first smart contract is satisfied, ownership of the first token is extinguished on the first blockchain network,
When the second smart contract is satisfied, the electronic device creates ownership of the second token on the second blockchain network. According to paragraph 1,
The above request for transfer of ownership is:
An electronic device comprising at least one of a request to sell the content or a request to purchase the content. According to paragraph 1,
The buyer,
A user of the electronic device,
The electronic device is,
It further includes a display;
The one or more processors:
When the second token is generated after destroying the first token, the electronic device receives the content through the communication interface and controls the display to display the content. In a method of controlling an electronic device,
When an ownership transfer request for content is received, identifying an owner and buyer for the content based on the ownership transfer request;
generating a first smart contract related to the sale of the content based on the identified owner;
generating a second smart contract related to purchase of the content based on the identified purchaser; and
When first transaction data satisfying the first smart contract is generated and second transaction data satisfying the second smart contract is generated, destroy the owner's first token associated with the content, and A control method comprising: generating a second token of the purchaser. According to clause 11,
Each of the owner's first token and the purchaser's second token associated with the content,
Non-Fungible Token (NFT), control method. According to clause 11,
Destroying the first token and generating the second token includes:
Transmitting payment information corresponding to the content to owner information corresponding to the identified owner and burning the first token related to the content to generate the first transaction data related to the sale of the content ; and
Receiving the payment information corresponding to the content from buyer information corresponding to the identified buyer, and generating the second transaction data by minting the second token related to the content; Including, Control method. According to clause 13,
Destroying the first token and generating the second token includes:
If the first transaction data satisfies a condition set in the first smart contract created by the owner, recording the first transaction data on a first blockchain (block-chain) network; and
If the second transaction data satisfies the conditions set in the second smart contract created by the buyer, recording the second transaction data on a second blockchain network. A control method comprising a. According to clause 13,
Destroying the first token and generating the second token includes:
After transmitting payment information corresponding to the content to the owner information, the payment information is received from the buyer information, and when the payment information is received from the buyer information, the first token is destroyed and the second token is exchanged. A control method comprising: generating. According to clause 11,
The above owner information is,
It is a public key corresponding to the owner used in the first blockchain network,
The buyer information is,
A control method, where the public key corresponding to the purchaser is used in a second blockchain network. According to clause 11,
Ownership of the first token is recorded in the first blockchain network,
Ownership of the second token is recorded in a second blockchain network different from the first blockchain network. According to clause 17,
Destroying the first token and generating the second token includes:
When the first smart contract is satisfied, extinguishing ownership of the first token on the first blockchain network; and
When the second smart contract is satisfied, generating ownership of the second token on the second blockchain network. A control method comprising a. According to clause 11,
The above request for transfer of ownership is:
A control method comprising at least one of a sales request for the content or a purchase request for the content. According to clause 11,
The buyer,
A user of the electronic device,
If the second token is generated after destroying the first token, receiving the content through the communication interface and displaying the content.

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