KR20200137154A - Advertisement system and advertisement providing method based on blockchain platform - Google Patents

Abstract

Provided is an advertisement system based on a blockchain platform. The advertisement system comprises: a user device which records user information and user behavior information in accordance with use of a user in a blockchain; and an advertisement content providing server which establishes an advertisement system in connection with a blockchain platform. The advertisement content providing server registers advertisement content for which targeting conditions are set, and transmits the advertisement content set with the targeting conditions determined based on the user information and the user behavior information recorded in the blockchain platform among the registered advertisement content to a device recorded in the user information.

Description

Blockchain platform based advertisement system and advertisement provision method {ADVERTISEMENT SYSTEM AND ADVERTISEMENT PROVIDING METHOD BASED ON BLOCKCHAIN PLATFORM}

The present invention relates to a block chain platform-based advertisement system and advertisement provision method.

In traditional media planning, after segmenting target consumers such as demographic criteria or lifestyle, they have made effective efforts to prevent waste of messages by exposing advertisements only in that partial market. However, despite these efforts, many of the advertising messages do not reach the target consumers or are repeatedly reached to media users other than the target consumers.

In recent years, it is advancing into the era of big data in which it is possible to provide customized advertisements to consumers using credit card transaction information, or to collect and analyze additional activity information such as content users' search data and app use. In other words, the era of customized advertising based on consumer behavior information is coming.

However, since it is essential to collect and analyze consumer behavior information for customized advertisement, which is an evolutionary form of advertisement, the issue of personal information protection has always emerged. Therefore, there is a demand for a compromise plan to ensure the free advertising execution activities of the industry without compromising the value of personal information protection.

Blockchain technology, which is emerging as the next-generation core IT technology, records continuously increasing data in a specific unit of block, and each node constituting a P2P (peer-to-peer) network creates a block in a chain form. It refers to a data management technology managed by a data structure. At this time, blockchain data composed of a chain-type data structure is operated in the form of a distributed ledger at each node without a central system.

Transactions in the blockchain are made by digital signatures by public key infrastructure (PKI) or public key encryption. The public key infrastructure encrypts specific data with a private key, and the encrypted data can be decrypted only with the public key paired with the private key, the same method used by public certificates. Use. Blockchain participants are identified by'address', which is a string created by applying a hash algorithm to a public key. Following this process, participants of the blockchain can prove that they are legally qualified while maintaining anonymity.

The present invention is to solve the above-described problems, and an object of the present invention is to execute customized advertisements with guaranteed anonymity through an advertisement service providing system based on a blockchain technology.

Blockchain platform-based advertisement system according to an embodiment of the present invention for achieving the above object is a user device that records user information and user behavior information according to the user's use in the blockchain, and the blockchain platform. And an advertisement content providing server that establishes an advertisement system in connection with the advertisement content providing server, wherein the advertisement content providing server registers advertisement contents for which targeting conditions are set, and among the registered advertisement contents, user information and user behavior information recorded in the block chain The advertisement content in which the targeting condition determined based on is set is transmitted to the device recorded in the user information.

In this case, the advertisement content providing server classifies the user information and user behavior information recorded in the block chain according to a preset criterion, determines the advertisement content in which a targeting condition matching the classified information is set, and the determined Advertisement content may be transmitted to a device according to the user information.

In addition, when the card service application is accessed through a card including an integrated circuit (IC) chip that stores a card service application based on the blockchain platform, the user device provides information on the accessed card service application from the card. Is received, and the received information can be recorded in the blockchain as user behavior information.

In addition, the user device may further include information on at least one of the current location and time of the user device in the user behavior information and record it in the blockchain.

In addition, the advertisement system based on the blockpain platform further includes a service providing server for including the use information of the card read from the card terminal performing communication with the IC chip in the user behavior information and recording it in the block chain. can do.

In addition, when the device recorded in the user information receives the advertisement content or views the received advertisement content, it may receive a reward from the advertisement content providing server.

In addition, the card may include a communication chip for performing wireless communication, and the user terminal device may receive information on the accessed card service application from the card through the communication chip.

In addition, the user behavior information may include information received, input, or output to the user device according to the user's manipulation.

In addition, the user behavior information is at least one of information on the user of the card, the type of the accessed card service application, remittance by the card service application, payment, authentication, access control, lock, unlock, point accumulation, and point use. Can contain information about one.

On the other hand, the method for providing advertisements based on a blockchain platform according to an embodiment of the present invention includes registering advertisement contents for which targeting conditions are set in an advertisement contents providing server that establishes an advertisement system in connection with the blockchain platform, and user information And recording user behavior information according to the user's use in the blockchain, and among the registered advertisement contents, the user is provided with advertisement contents in which targeting conditions determined based on user information and user behavior information recorded in the blockchain are set. And transmitting the information to the recorded device.

Here, the transmitting includes classifying user information and user behavior information recorded in the block chain according to preset criteria, determining advertisement content for which targeting conditions matching the classified information are set, and the determination It may include transmitting the generated advertisement content to a device according to the user information.

In addition, in the recording step, when the card service application is accessed through a card including an IC (Integrated Circuit) chip that stores a card service application based on the blockchain platform, the accessed card service application is Information can be received, and the received information can be recorded in the blockchain as user behavior information.

In addition, the recording may further include information on at least one of the current location and time of the user device in the user behavior information and record it in the blockchain.

In addition, the recording may include the use information of the card read from the card terminal performing communication with the IC chip in the user behavior information and record it in the block chain.

In addition, when the device recorded in the user information receives the advertisement content or reads the received advertisement content, receiving a reward from the advertisement content providing server may be further included.

In addition, the card may include a communication chip for performing wireless communication, and the recording may allow the user terminal device to receive information on the accessed card service application from the card through the communication chip.

In addition, the user behavior information may include information received, input, or output to the user device according to the user's manipulation.

In addition, the user behavior information includes at least one of information on the user, the type of the accessed card service application, remittance by the card service application, payment, authentication, access control, lock, unlock, point accumulation and point use. May include information about.

According to various embodiments of the present invention as described above, it is possible to provide customized advertisements in various card usage situations while ensuring personal anonymity on a blockchain network.

1 is a diagram for explaining a system capable of providing an advertisement service based on a blockchain platform according to an embodiment of the present invention;
FIG. 2 is a diagram for explaining a system capable of providing an advertisement service based on a blockchain platform using a smart card according to an embodiment of the present invention;
3 is a flowchart illustrating a method of providing an advertisement service based on a blockchain platform according to an embodiment of the present invention.

First, general terms used in the specification and claims are selected in consideration of functions in various embodiments of the present invention. However, these terms may vary depending on the intention of a technician in the field, legal or technical interpretation, and the emergence of new technologies. In addition, some terms may be terms arbitrarily selected by the applicant. These terms may be interpreted as the meanings defined in the present specification, and if there is no specific term definition, they may be interpreted based on the general contents of the present specification and common technical knowledge in the art.

In addition, the same reference numbers or numerals in each drawing attached to the present specification indicate parts or components that perform substantially the same function. For convenience of description and understanding, different embodiments will be described using the same reference numbers or symbols. That is, even if all the components having the same reference numerals are shown in a plurality of drawings, the plurality of drawings do not mean one embodiment.

In addition, terms including ordinal numbers such as'first' and'second' may be used in the specification and claims to distinguish between components. These ordinal numbers are used to distinguish the same or similar constituent elements from each other, and the meaning of the term should not be limitedly interpreted due to the use of such ordinal numbers. For example, components combined with these ordinal numbers should not be interpreted as limiting the order of use or arrangement by the number. If necessary, each of the ordinal numbers may be used interchangeably.

In the present specification, expressions in the singular include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as'comprise' or'comprise' are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other It is to be understood that it does not preclude the presence or addition of features, numbers, steps, actions, components, parts, or combinations thereof.

In addition, in an embodiment of the present invention, when a part is connected to another part, this includes not only a direct connection but also an indirect connection through another medium. In addition, the meaning that a certain part includes a certain component means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

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

1 is a diagram for describing a system capable of providing an advertisement service based on a block chain platform according to an embodiment of the present invention.

The blockchain platform-based advertisement system 1000 includes a user device 100 and an advertisement content providing server 200.

The user device 100 is a device that records user information and user behavior information according to the user's use in a blockchain, and includes a personal computer (PC), a smart phone, a tablet PC, and a notebook (note book). , TV, PDA (Personal Digital Assistant), and navigation (navigation) includes a device that can receive user information or user manipulation.

Here, the user information is user profile information of the user device 100 and refers to basic personal information such as a user's name, age, and address.

In addition, the user behavior information refers to information related to a user's manipulation of the user device 100. User behavior information is, for example, information searched or input at a certain time at a certain time using the user device 100, output content (viewed or heard content), information exchanged through communication (received or transmitted Information), information about the executed application, and the like.

That is, the user behavior information may be history information indicating the usage mode of the user device 100 by the user.

When the user's consent is obtained, the user device 100 generates an electronic signature for user information and user behavior information using the user's private key, and executes a transaction including the digitally signed data and original data in each block chain. Will propagate to the node.

Here, the user's consent may be achieved by receiving an input that consents to the use of user information and user behavior information on the user device 100.

The advertisement content providing server 200 is a component that constructs an advertisement system in connection with a blockchain platform.

The advertiser may register advertisement contents in the advertisement contents providing server 200 through the blockchain platform. In this case, the advertiser may pay advertisement fees to the blockchain platform and register advertisement contents, or pay advertisement fees according to the degree of advertisement execution in the future.

The advertiser may register information related to the targeting condition of the advertisement content together with the advertisement content to be executed in the advertisement content providing server 200.

Here, the targeting condition is the age, residence, workplace, gender, date of birth, marital status, interests, product purchase behavior, education level, income, medical history, financial status, family relationship, magazine It may include information on a specific place and time, along with various profile information and behavior information such as subscription status.

In addition, the advertisement content providing server 200 may provide a reward to be provided to a user exposed to an advertisement when an advertisement is executed to the user device 100 through a blockchain platform. Here, the case in which the advertisement is executed may mean a case in which an advertisement is received in the user terminal device 100 of a user, or a case in which an advertisement received from the user terminal device 100 is viewed, etc., is reacted to the advertisement.

In addition, a reward is a reward for a user's advertisement inquiry and viewing, and may be paid to a user in the form of a certain fee.

The advertisement content providing server 200 registers advertisement contents for which targeting conditions are set, and among the registered advertisement contents, the advertisement contents with targeting conditions determined based on user information and user behavior information recorded in the block chain are recorded in the user information. Can be transferred to the device.

Specifically, the advertisement content providing server 200 classifies user information and user behavior information recorded in the block chain according to preset criteria, determines advertisement content in which targeting conditions matching the classified information are set, and determines the advertisement Content can be transmitted to a device according to user information.

For example, if the history of searching for'recommended tourist destinations in Hawaii' is recorded in the blockchain as user behavior information, the search history of'recommended tourist destinations in Hawaii' may be classified under the targeting condition of'residence search', and advertisement content is provided. The server 200 may transmit the'advertisement of the hotel reservation site' as advertisement content for which the'residence search' condition is set to the user device 100 corresponding to the user's address or an external device according to user information.

That is, even if the advertisement content providing server 200 does not receive or decrypt the user information and user behavior information recorded in the blockchain, the classified information and the classified information and the classified information using an algorithm capable of classifying such information according to a preset targeting condition Advertisement content for which matching targeting conditions are set may be determined.

The advertisement content providing server 200 may transmit the determined advertisement content to the user device 100 corresponding to the user's address or an external device according to user information.

That is, it is not necessary to transmit user information and user behavior information to the advertisement content providing server 200, and only encrypted data is used, so that the targeted advertisement content is transmitted to each user's device while ensuring the anonymity of each user. Can be.

FIG. 2 is a diagram illustrating a system capable of providing an advertisement service based on a blockchain platform using a smart card according to an embodiment of the present invention.

As shown in the example shown in Fig. 2, the advertiser sends the advertisement contents providing server 200 through a blockchain platform: i) advertisement contents (XX Donut Guro Branch Americano 1+1 event) and ii) targeting conditions (30s, female , Singles, office workers in Guro, XX donuts Provide advertisements when trading 1km near Guro branch), iii) You can register advertisements with the contents of rewards to be provided to customers in response to advertisements.

On the other hand, in the advertisement system 1000 ′, when an applet included in the integrated circuit (IC) 310 of the card 300 is accessed through the card 300, usage information of the accessed applet is user behavior information. Can be recorded on the blockchain.

Here, the applet refers to a card service application that is mounted in the IC chip 310 of the card 300 to provide a service added to the card 300. Such applets can be run on an operating system based on a blockchain platform.

In addition, access refers to various forms of card use such as remittance, payment, authentication, access control, lock, unlock, point accumulation, and point use using an applet mounted in the IC chip 210.

For example, the user may use the card 300 to perform payment at a store, access a library, or open and close a car key. At this time, the applet mounted in the IC chip 310 of the card 300 is accessed.

The usage information of the accessed applet may be recorded on the blockchain as user behavior information. Specifically, the applet accessed from the card 300 through the communication chip 320 included in the card 300 by the user device 100 It can receive information about and record the received information on the blockchain as user behavior information.

In this case, each user may be identified through a private key that is a unique identifier, and an interaction between the user and the blockchain platform may be performed through the user terminal device 100.

Meanwhile, the card 300 according to the present embodiment may be implemented as a standard card type according to the international ID card standard (eg, ID-1 standard in ISO/IEC 7810). In this case, the card 300 may be implemented in a form in which the IC chip 310 is embedded, and may perform communication with the user terminal device 100 through the communication chip 320. Here, the communication chip 320 communicates data with the user terminal device 100 according to various communication standards such as an infrared method, an RF method, a near field communication (NFC) method, a Zigbee, and a Bluetooth. Can transmit or receive.

2 shows an example in which the communication chip 320 is implemented as a Bluetooth chip.

Meanwhile, the card 300 may be implemented in a SIM (subscriber identify module) card type according to the international ID card standard (eg, ID-000 standard in ISO/IEC 7810). In this case, the card 300 may be inserted into and connected to a SIM card slot in the user terminal device 100 and then may transmit data between them.

Mainly, it can be used in this form when a user has issued and registered a mobile card through a card management application instead of issuing a physical card.

In addition, the communication chip 320 may be implemented with NFC (Near Field Communication) to transmit data between the user terminal devices 100 in a short distance.

Thereafter, the advertisement content providing server 200 may transmit, to the user terminal device 100, advertisement content for which targeting conditions corresponding to user information and user behavior information recorded in the blockchain are set among the registered advertisement contents. Here, the user terminal device 100 may be a user terminal device 100 in the name of a user registered in the accessed applet.

In the example shown in FIG. 2, when a 32-year-old woman who works for a company in Guro area makes a card payment at a restaurant not far from the XX donut Guro store, an advertisement is transmitted to the user terminal device 100 of the customer. I can.

At this time, the customer may use the user terminal device 100 to inform the blockchain platform of information or personal information about advertisements to be received in advance or set the authority to record user behavior information in the blockchain. .

Thereafter, according to the embodiment of FIG. 2, when a user uses the card 300 at an affiliated store, the used card 300 is used in the user terminal device 100 through the communication chip 320. Transmit information (applet used, merchant name, purchase history, payment amount, etc.).

The user terminal device 100 may record the received usage information and the location and time information of the user terminal device 100 when using the card as user behavior information in the blockchain. Here, the location of the user terminal device 100 may be received from a satellite using a GPS module included in the user terminal device 100.

The advertisement content providing server 200 may classify the user behavior information recorded in the block chain and transmit a registered advertisement meeting a targeting condition to the user terminal device 100.

For example, as shown in FIG. 2, a user pays for meals with a card 300 using an OO restaurant located within 1 km of the XX Donut Guro branch, and included in the IC chip 310 of the card 300. When the reserve is used through the applet, the user terminal device 100 receives the usage information from the card 300 (applet, OO restaurant, 2 curry rice, 12,000 won, 12:50 pm, etc.), the location of the OO restaurant member store Information, etc. can be recorded on the blockchain as user behavior information. At this time, the recorded user behavior information is encrypted and stored.

At this time, if the use of the user's personal information on the applet is previously agreed, user information, including the user's personal information, may be transmitted to the blockchain together, or user information previously registered in the blockchain may be used.

Based on the user information and user behavior information recorded in the block chain, the advertisement content providing server 200 is an advertisement with matching targeting information such as 30s, women, singles, office workers in Guro, and transactions within 1km of XX Donut Guro branch ( The Americano 1+1 event at XX Donut Guro branch) may be transmitted to the user device 100 or an external device recorded in the user information.

In addition, when the user uses the card 300, the rich information of the card 300 read from the card terminal 400 registered in the affiliate store is a service providing server (POS, PG, VAN, Dongle, etc.) (500), and as such usage information, used card information, applet information, affiliate store information, transaction information (payment, access, etc.), subscriber information (grade, consumption type, etc.) are encrypted and recorded in the blockchain. May be.

At this time, the blockchain platform may pay a fee to the service providing server 500 as a price for providing information.

As another embodiment, it may be assumed that a university student accesses the library of XX University within the test period using the student ID 300. When the library access applet mounted on the IC chip 310 of the student ID 300 is accessed by communicating with the terminal at the entrance, the use information of the applet is recorded in the blockchain as user behavior information.

The advertisement content providing server 200 compares the user information and user behavior information recorded in the block chain with the targeting information registered in the block chain, and transmits the advertisement content that targets university students of XX universities to the user terminal device 100. I can.

As an example, the advertisement content may be a cafe advertisement around the XX library.

In addition, when getting off at Sindorim Station using the transportation card 300, the advertisement content providing server 200 may transmit advertisement content that targets office workers living near Sindorim Station to the user terminal device 100. As an example, the advertisement content may be an advertisement of a discount store near Sindorim Station.

In addition, when opening and closing a car door in the morning with a smart card installed with a wireless car key applet, the advertisement content providing server 200 provides advertisement content as a target condition for office workers living in a corresponding area and commuting using a vehicle. Can be transmitted to (100). As an example, the advertisement content may be an advertisement at a gas station around the corresponding area.

That is, since user information and user behavior information such as card transaction information and personal information are encrypted and recorded on the blockchain network, the user of the user terminal device 100 is thoroughly guaranteed anonymity and, as described above, based on card transaction information. It is possible to receive customized advertisements.

When a user views or views an advertisement received on the user terminal device 100, the advertiser pays the advertisement fee through the blockchain platform, and a predetermined advertisement fee is charged to the user's virtual account as a reward for the user's advertisement viewing. Can be paid. In this case, since the cost of purchasing the customer's smart card 300 may conflict with the advertisement fee received from the advertiser, the cost of purchasing the customer's smart card 300 may be greatly reduced or become free.

Here, the advertising fees paid by the advertiser to the blockchain platform or the fees paid by the user as a reward may all take the form of virtual currency such as coins or tokens.

3 is a flowchart illustrating a block chain-based advertisement providing method according to an embodiment of the present invention.

First, the advertisement content for which the targeting condition is set is registered in an advertisement content providing server that establishes an advertisement system in connection with a blockchain platform (S310).

Thereafter, user information and user behavior information according to the use of the user are recorded in the blockchain (S320).

At this time, when a card service application is accessed through a card including an IC chip that stores a card service application based on a blockchain platform, information on the accessed card service application is received from the card, and the received information is used as user behavior information. Can be recorded on the blockchain.

At this time, information on at least one of the current location and time of the user device may be further included in the user behavior information and recorded in the blockchain.

In addition, the card usage information read from the card terminal that communicates with the IC chip can be included in the user behavior information and recorded in the blockchain.

Thereafter, among the registered advertisement contents, advertisement contents for which targeting conditions determined based on user information and user behavior information recorded in the block chain are set are transmitted to the device recorded in the user information (S330).

Specifically, the user information and user behavior information recorded in the blockchain are classified according to preset criteria, the advertisement content for which targeting conditions matching the classified information are set is determined, and the determined advertisement content is a device according to the user information. Can be transferred to.

In addition, when the device recorded in the user information receives advertisement content or reads the received advertisement content, it may receive a reward from the advertisement content providing server.

Meanwhile, the user behavior information referred to herein may include information received, input, or output to a user device according to a user's manipulation.

In addition, the user behavior information includes information on at least one of user information, type of card service application accessed, remittance by card service application, payment, authentication, access control, lock, unlock, point accumulation and point use. can do.

According to various embodiments of the present invention as described above, it is possible to provide customized advertisements in various card usage situations while ensuring personal anonymity on a blockchain network.

The control method according to the various embodiments described above may be implemented as a program and stored in various recording media. That is, a computer program that is processed by various processors and capable of executing the various control methods described above may be used in a state stored in a recording medium.

As an example, i) registering advertisement contents with targeting conditions set on an advertisement content providing server that establishes an advertisement system in connection with a blockchain platform, ii) user information and user behavior information according to the user's use on the blockchain. A program that performs the step of recording, and iii) transmitting advertisement contents with targeting conditions determined based on user information and user behavior information recorded in the blockchain among registered advertisement contents to a device recorded in the user information A stored non-transitory computer readable medium may be provided.

The non-transitory readable medium refers to a medium that stores data semi-permanently and can be read by a device, not a medium that stores data for a short moment, such as a register, cache, or memory. Specifically, the above-described various applications or programs may be provided by being stored in a non-transitory readable medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, and ROM.

On the other hand, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications may be possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: user terminal device 200: advertisement content providing server
300: card 310: IC chip
320: communication chip 400: card terminal
500: service providing server 1000: advertisement system

Claims (18)

In the advertising system based on the blockchain platform,
A user device that records user information and user behavior information according to the use of the user in the blockchain; And
Including; an advertisement content providing server for building an advertisement system in connection with the blockchain platform,
The advertisement content providing server,
Registering advertisement contents with targeting conditions set, and transmitting advertisement contents with targeting conditions set based on user information and user behavior information recorded in the block chain among the registered advertisement contents to a device recorded in the user information Advertising system. The method of claim 1,
The advertisement content providing server,
The user information and user behavior information recorded in the block chain are classified according to a preset criterion, and advertisement content for which a targeting condition matching the classified information is set is determined, and the determined advertisement content is determined according to the user information. Advertisement system, characterized in that transmitting to the device. The method of claim 2,
The user device,
When the card service application is accessed through a card including an integrated circuit (IC) chip that stores the card service application based on the blockchain platform, information on the accessed card service application is received from the card, and the received An advertisement system, characterized in that information is recorded in the block chain as user behavior information. The method of claim 3,
The user device,
An advertisement system, characterized in that the information on at least one of the current location and time of the user device is further included in the user behavior information and recorded in the block chain. The method of claim 3,
And a service providing server for including the use information of the card read from the card terminal performing communication with the IC chip in the user behavior information and recording it in the block chain. The method of claim 1,
The device recorded in the user information,
When the advertisement content is received or the received advertisement content is viewed, a reward is received from the advertisement content providing server. The method of claim 3,
The card is,
Including a communication chip for performing wireless communication,
The user terminal device,
And receiving information on the accessed card service application from the card through the communication chip. The method of claim 1,
The user behavior information,
An advertisement system comprising information received, input, or output to the user device according to the user's manipulation. The method of claim 5,
The user behavior information,
Including information on at least one of information on the user of the card, the type of the accessed card service application, remittance by the card service application, payment, authentication, access control, lock, unlock, point accumulation and point use Advertising system, characterized in that. In the method of providing advertisements based on a blockchain platform,
Registering advertisement contents for which targeting conditions are set in an advertisement contents providing server that establishes an advertisement system in connection with the blockchain platform;
Recording user information and user behavior information according to the use of the user in the blockchain; And
And transmitting advertisement contents in which targeting conditions determined based on user information and user behavior information recorded in the block chain among the registered advertisement contents are set, to a device recorded in the user information. The method of claim 10,
The transmitting step,
Classifying user information and user behavior information recorded in the blockchain according to preset criteria;
Determining advertisement content in which a targeting condition matching the classified information is set; And
And transmitting the determined advertisement content to a device according to the user information. The method of claim 11,
The recording step,
When the card service application is accessed through a card including an integrated circuit (IC) chip that stores the card service application based on the blockchain platform, information on the accessed card service application is received from the card, and the received An advertisement providing method, characterized in that information is recorded in the block chain as user behavior information. The method of claim 12,
The recording step,
The advertisement providing method, characterized in that the information on at least one of the current location and time of the user device is further included in the user behavior information and recorded in the block chain. The method of claim 12,
The recording step,
The advertisement providing method, characterized in that the use information of the card read from a card terminal that communicates with the IC chip is included in the user behavior information and recorded in the block chain. The method of claim 10,
Receiving a reward from the advertisement content providing server when the device recorded in the user information receives the advertisement content or views the received advertisement content; Advertisement providing method further comprising a. The method of claim 12,
The card is,
Including a communication chip for performing wireless communication,
The recording step,
And the user terminal device receives information on the accessed card service application from the card through the communication chip. The method of claim 10,
The user behavior information,
An advertisement providing method comprising information received, input, or output on the user device according to the user's manipulation. The method of claim 14,
The user behavior information,
Information on the user, the type of the accessed card service application, remittance by the card service application, payment, authentication, access control, lock, unlock, point accumulation and point use, characterized in that it includes information on at least one of How to provide advertising.

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