KR102163375B1 - Sharing reward system for verifying an sharing information using blockchain - Google Patents

Abstract

In the present invention, in performing a marketing service through a sharing link using a social network, sharing information about a product is generated by a participant terminal, and this shared information is stored in a block chain method, but the participant in the master terminal that sells the product The present invention relates to a technology that verifies the authenticity of the shared information generated by the terminal to ensure the reliability of the shared information record, and provides a sharing reward to the client who has distributed the corresponding shared link only for normal shared information. .
The shared reward system for verifying shared information in the blockchain method according to the present invention includes a distribution terminal that receives a sharing link to a product page selected by the service server and distributes it to at least one shared terminal, and a sharing distributed from the distribution terminal. As a link is clicked, a plurality of client terminals consisting of a shared terminal that transmits a hash value corresponding to the corresponding shared link to a master terminal, and a hash value for verifying shared information between the client terminals are stored in the block chain, and the Multiple master terminals that compare the hash value received from the shared terminal with the hash value stored in the blockchain to determine whether the shared information is normal, and if the shared information is determined to be normal by the master terminal, the corresponding shared terminal It characterized in that it is configured to include a service server that performs compensation processing for sharing a corresponding product page to a distribution terminal that has distributed a sharing link.

Description

Sharing reward system for verifying an sharing information using blockchain}

In the present invention, in performing a marketing service through a sharing link using a social network, sharing information about a product is generated by a participant terminal, and this shared information is stored in a block chain method, but the participant in the master terminal selling the product The present invention relates to a technology that verifies the authenticity of the shared information generated by the terminal to ensure the reliability of the shared information record, and provides a sharing reward to the client who has distributed the corresponding shared link only for normal shared information. .

Due to the development of the online market, various forms of distribution are taking place away from the form of distribution that was established in the past offline.

In recent years, Internet shopping malls and open markets have evolved further, and sales are being made through SNS (Social Network Services) or applications. However, in such a case, there is a problem that the reliability of individual purchases is low, and if a third party known through the purchaser wants to purchase, there is a disadvantage that the purchaser must request the purchase, and the purchaser who recommends the purchase to a third party has no benefit. There is a disadvantage that cannot be received.

Accordingly, when an advertisement, that is, a sharing link is spread through SNS, or when a product is sold through the sharing link, a reward service is provided that provides a certain point to the distributor of the sharing link.

In this regard, Prior Document 1 (Korean Patent Registration No. 1749176) shares product information of an advertiser who has installed and used or purchased an advertiser's app on the user terminal with the terminal of an acquaintance associated with the user terminal through a marketing platform. When a terminal installs, drives, views, and purchases the advertiser's app, a configuration for accumulating rewards is also known to the terminal of an acquaintance and the user terminal that provided the advertisement usage details.

In addition, in Prior Document 2 (Korean Patent Publication No. 10-2017-0077479), the first recommender code is assigned to the first recommender account registered as a member, and the first product page from the first recommender terminal accessed with the first recommender account Whether to purchase the first product of the recommendee terminal connected to the web server through the link content, which receives a request for sharing and generates a link content for the first product page including the first recommender code according to the share request It is known to provide a reward to the account of the first recommender according to whether the first product is purchased or not.

These prior literatures provide a certain amount of rewards to customers who are involved in the dissemination of advertisements for products or sales of products, and it is highly likely that new customers who are familiar with customers will be recruited, and as customers themselves also recruit new customers. Since certain rewards are guaranteed, profits can be returned to both shopping mall operators and customers.

However, since the reward is to return part of the profits that the shopping mall operator can obtain from product sales to the sharer, it does not give credibility to the management of the shared information, even though it should be provided only to the sharer who is actually involved in the sharing. It is not possible.

That is, if shared information is leaked to a person with malicious intent, a third party who is not related to sharing may receive a reward. This may lead to loss of product sellers or result in a decrease in the rewards paid to other sharers, which may cause problems in which provision of a reward service designed with good intentions is inevitable or meaningless.

Therefore, in order to provide a stable reward service, more accurate management of shared information is required.

1. Korean Patent Registration No. 1769176 (Name of invention: Social network-based unlimited reward marketing platform system and method of providing the same) 2. Korean Patent Publication No. 10-2017-0077479 (Name of invention: Web server and method of providing rewards according to marketing)

Accordingly, the present invention was created in view of the above circumstances, and a product sharing network between clients is formed through a sharing link for a product, so that clients participate in recording shared information, but when the sharing link is clicked by the client, the product In addition to performing reliable management of the recorded shared information by verifying the authenticity of the shared information generated by clicking the shared link in the master terminal storing the normal shared information for, the corresponding shared link is provided only for normal shared information. Its technical purpose is to provide a shared reward system that verifies shared information in a block chain method that enables the distributed client to provide shared rewards.

According to an aspect of the present invention for achieving the above object, a distribution terminal receiving a sharing link for a product page selected by the service server and distributing it to at least one shared terminal, and a sharing link distributed from the distribution terminal are A plurality of client terminals consisting of a shared terminal that transmits a hash value corresponding to a corresponding shared link to a master terminal as clicked, and a hash value for verifying shared information between the client terminals are stored in the block chain, and the shared terminal Multiple master terminals that compare the hash value received from the hash value and the hash value stored in the block chain to determine whether the shared information is normal, and when the shared information is determined to be normal by the master terminal, a shared link to the corresponding shared terminal The distribution terminal is configured to include a service server that performs compensation processing for sharing the product page for the distribution terminal, and if the shared information is normal, the master terminal generates a transaction corresponding to the shared information to block chain. A shared reward system is provided for verifying shared information in a block chain method, characterized in that the shared information is stored in and if the shared information is abnormal, the shared information received from the sharing terminal is discarded.

In addition, there is provided a shared reward system for verifying shared information in a block chain method, characterized in that the plurality of master terminals form a consortium block chain, which is a closed block chain method.

In addition, the master terminal is a seller terminal that subscribes to a service server and sells products, and is configured to receive and execute a master program for performing shared information verification from the service server, and the service server is a master program of the master terminal. There is provided a shared reward system for verifying shared information in a blockchain method, characterized in that the master terminal for the product is changed and set to another master terminal when deleted or withdrawal from a member.

In addition, each block forming the block chain is a block body comprising a block header including a previous hash value and a current hash value, and at least one transaction including a product ID and user-specific information. A shared reward system that verifies shared information in a chain manner is provided.

In addition, the shared link is configured to include a previous block hash value, the shared terminal transmits verification request information for the shared information including the shared link to the master terminal, and the master terminal received from the shared terminal in the blockchain. There is provided a shared reward system for verifying shared information in a blockchain method, characterized in that it is determined that the shared information is normal when there is a previous block hash value equal to the previous block hash value of the shared information.

In addition, a key value corresponding to user-specific information is stored in the block chain, and the shared link is configured to include a previous block hash value, and the shared terminal applies the key value recognized by itself to the hash function to obtain the current hash value. In addition to calculating, the verification request information including the current hash value and user-specific information is transmitted to the master terminal, and the master terminal calls the key value corresponding to the user-specific information, and applies the called key value to the hash function. In addition to calculating the hash value, a shared reward system that verifies shared information in a blockchain method, characterized in that if the current hash value calculated and the current hash value received from the sharing terminal are the same, the shared information is determined to be normal. Is provided.

delete

In addition, the master terminal transmits the verification result information to the distribution terminal, the distribution terminal performs a shared reward request to the service server based on the reception of the normal verification result, and the service server shares the shared reward for the distribution terminal that requested the shared reward. A shared reward system is provided that verifies shared information in a blockchain manner, characterized in that it is configured to provide rewards.

In addition, the master terminal is a seller terminal that sells products, and is registered as a member in a service server, and the sharing terminal interworks with the master terminal to receive product purchase related services according to a click of a sharing link, and the master terminal is a shared terminal When the product is sold by the service server, the product purchase reward request information including the distribution terminal information that has distributed the sharing link to the corresponding shared terminal is provided to the service server, and the service server is based on the product purchase reward request information received from the master terminal. Thus, there is provided a shared reward system for verifying shared information in a block chain method, characterized in that additional product purchase rewards are provided for the corresponding distribution terminal.

According to the present invention, when a sharing link is clicked by a client, normal sharing information by verifying the authenticity of the sharing information generated by clicking the sharing link based on the hash value in the master terminal storing the normal sharing information for the product. It is possible to more reliable management of shared information by managing to create and store transactions only for the data.

In addition, by providing a sharing reward to the client who distributed the corresponding sharing link only when it is determined as normal sharing information through the master terminal, a more stable reward service is provided by preventing sharing rewards from being provided to third parties who did not participate in sharing. Can be provided.

1 is a diagram schematically showing a shared reward system for verifying shared information in a block chain method according to a first embodiment of the present invention.
FIG. 2 is a diagram showing the types of the client terminal 300 shown in FIG. 1 divided by function according to distribution of a shared link.
3 and 4 are diagrams for explaining a block chain and a block structure.
5 is a flow chart for explaining the operation of the shared reward system for verifying shared information in the block chain method shown in FIG. 1;

Since the embodiments described in the present invention and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, the scope of the present invention is limited to the embodiments and drawings described in the text. Should not be construed as limited by That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in a commonly used dictionary should be construed as having the meaning of the related technology in context, and cannot be interpreted as having an ideal or excessively formal meaning that is not clearly defined in the present invention.

1 is a diagram schematically showing a shared reward system for verifying shared information in a block chain method according to the first embodiment of the present invention. A service server 100, a plurality of master terminals 200, and a plurality of It is configured to include the client terminal 300.

The service server 100 provides a sharing reward, that is, a sharing point, to the client terminal 300 that has distributed a sharing link to a product page provided by the master terminal 200.

The plurality of master terminals 200 are seller terminals that sell products, and perform a series of product sales processing for the client terminal 300 and verify shared information generated by the client terminals 300.

At this time, the master terminal 200 stores a hash value for the shared link information in the blockchain when generating a normal shared link, and stores a hash value generated by clicking the shared link by a client receiving the shared link. It is received from and compares the received hash value with the normal hash value, and transmits the comparison result information to the client terminal 300.

For example, the first client terminal 300 sends a sharing link (short address code for accessing an app or web page for purchasing the product) to a specific product on the app or web page of the service server 100, such as Facebook. It is distributed through a social network service, and the second client terminal 300 accesses an app or web page for purchasing a corresponding product through this sharing link, so that product purchase can be made.

On the app or web page for purchasing a specific product, a sharing menu is displayed to share the product through a social network, etc., and the user clicks the corresponding sharing menu and selects the social network service to share, and the service server ( 100) generates a short address code for accessing an app or web page for purchasing the product, and then opens the short address code generated in the user account of the selected social network service.

Other users connected to the user through the social network service can check this shortened address code, and if any of them selects the shortened address code through their client terminal, they can go to the app or web page to purchase the product. When connected, the client terminal calculates a hash value for the shared information and requests the verification of the shared information with a block chain consisting of master terminals.

In this case, the client terminal 300 transmits the shared link provided from the service server 100 to at least one or more other client terminals.

That is, the client terminal 300 receives a sharing link for a product page selected by the service server 100 from the service server 100 and distributes it to at least one or more sharing terminals 320 as shown in FIG. , As the shared link distributed from the distribution terminal 310 is clicked, a hash value corresponding to the corresponding shared link is generated, and the shared terminal 320 is transmitted to the master terminal 200. In this case, it goes without saying that each sharing terminal 320 in FIG. 2 may be a distribution terminal for a lower shared terminal by requesting a sharing link to the service server 100. In other words, any shared terminal performs an operation as a shared terminal for a distribution terminal that has distributed a shared link to itself, and when a shared link is distributed to another shared terminal, it performs an operation as a distribution terminal for the other shared terminal. .

In addition, the sharing terminal 320 generates a hash value for the corresponding shared link using a hash function set in advance in response to a click of the sharing link, and provides the hash value to the master terminal 200. At this time, the master terminal 200 transmits the verification result of the corresponding shared link to the previous client terminal that has distributed the shared link, that is, the distribution terminal 310.

Here, the client terminal 300 receives and installs a shared application for performing the operation according to the present invention from the service server 100, and according to the execution of the shared application, the distribution terminal ( 310) or performs an operation as the sharing terminal 320.

Next, the master terminal 200 will be described in more detail.

In the present embodiment, the plurality of master terminals 200 are terminals provided with a plurality of persons or organizations that have recognized reliability in the service server 100, and these master terminals constitute one closed blockchain (Consortium Blockchain). .

The configuration of the block chain using the plurality of master terminals 200 may be configured in an appropriate number and in an appropriate manner by the service server 100. For example, the sellers (sellers) with the highest product sales rate or the highest user's trust are organized in a blockchain form, granting them the authority to verify shared information, and paying for verification activities to contribute to the contribution rate. You can effectively manage these high sellers (sellers). 1 illustrates a configuration in which the first to fourth master terminals are connected in a closed block chain method.

Blockchain provides a distributed ledger system using a P2P network, and using blockchain technology guarantees its own integrity and stability. Basically, the block chain creates small data called'blocks' as managed data and is stored as distributed data in the form of a chain-type link created in a P2P method. It is a distributed computing technology that no one can arbitrarily modify, and everyone can view the change.

The present inventors believe that the blockchain technology is a technology that can prevent forgery and alteration of data, so if information on normal shared records is stored and managed in a blockchain, it will provide a function to discriminate against malicious/forgery shared records. The present invention is proposed in light of the fact that it will be possible.

The commonly used blockchain technology corresponds to the public blockchain. In the case of public blockchain, anyone can participate in the network and perform roles such as reading, verification, and transaction creation. In addition, the public blockchain has the disadvantage of processing speed or extremely slow because it uses a consensus algorithm that allows partial branching.

On the other hand, Consortium Blockchain can restrict network participation by using the membership function. Therefore, only the approved terminal is responsible for verification and transaction creation. In addition, the consensus algorithm also has the advantage of high processing speed because it does not allow partial branching and uses a fast BFT (Byzantine Fault Tolerance) based algorithm.

The master terminal 200 verifies the shared information provided from the client terminal 300 through a hash value comparison, and records the shared information determined to be normal in the blockchain. On the other hand, shared information determined to be abnormal is discarded without being stored in the blockchain. That is, the master terminal 200 can reliably manage the shared information by storing only normal shared information in the block chain.

In addition, the master terminal 200 stores shared information in a block chain method.

3 and 4 are diagrams for explaining the structure of a block chain, and FIG. 3 is a diagram showing the configuration of an arbitrary block (Block #n), and FIG. 4 is a block diagram showing a plurality of blocks in a block header. It is a view showing a shape connected in the form of a chain.

3 and 4, each block 20 includes a block header 21 and a block body 22. The block header 21 stores a hash value for a corresponding block to form a structure in which blocks are connected in time series.

In the block header 21, information such as a previous block hash value, a current block hash value, a next block hash value, a nonce, a Merkle tree root hash value, and the like are recorded. That is, as shown in FIG. 4, in order to connect blocks in a chain form, a previous block hash value, a current block hash value, and a next block hash value are basically stored in the block header 21.

The block body 22 is an area in which at least one transaction is stored, and shared information including a product ID and user-specific information (user No.) is stored in a transaction unit.

At this time, if information on all products is registered for each transaction in order to verify shared information using a block structure, there is a high possibility that the storage space cannot be efficiently utilized. Accordingly, in the present invention, a hash value for normal shared information is stored in a transaction, thereby reducing the size of the transaction and minimizing the comparison time required to determine the authenticity of the shared information. In this case, in each transaction, in addition to the hash value of the corresponding product, product information (ex, product name or product ID, etc.) and a user identification number (ex, user ID or user terminal No.) may be stored together.

At this time, the plurality of master terminals 200 are interconnected to form a consortium blockchain, and each master terminal 200 stores a hash value for the normal shared information in the blockchain and shares it from the client terminal 300 When the hash value for the link is received, it is compared with the hash value stored in the block chain to determine whether the shared link is normal.

5 is a flowchart illustrating an operation of a system for providing a shared reward for verifying shared information based on a block chain according to the present invention.

First, the master terminal 200 performs a series of service registration with the service server 100. The service server 100 provides a master application for providing a service according to the present invention to the master terminal 200 to which a member has subscribed, and the master terminal 200 installs and executes the master application. You will be given the right to verify the authenticity of shared links and to record shared information on the blockchain.

In addition, the service server 100 manages the master terminal 200 registered for the service, and when the member withdraws from the master or deletes the master application installed in the master terminal 200, the master terminal 200 Delete the authority of

The master terminal 200 stores normal shared information including a hash value for the shared link in the block chain (ST10). At this time, a transaction including product identification information for each shared link that is propagated, and user-specific information for the client terminal 300 that shared the product link, that is, the sharing terminal 320 is generated, and at least one transaction is a block body. It is stored in (22).

In the above-described state, when there is a request for creating a sharing link from the distribution terminal 310 to the service server 100, the service server 100 determines the address of the product page requested for the sharing link and the previous block hash value. A shared link is generated and transmitted to the distribution terminal 310 (ST20, ST30). At this time, for the genesis block corresponding to the first block, the current block hash value is included in the shared link as the previous block hash value. In addition, the service server 100 may receive a previous block hash value for the product from the master terminal 200 when requesting a sharing link from the distribution terminal 310.

The distribution terminal 310 distributes the sharing information including the sharing link and its own user-specific information, that is, the distributor-specific information, to at least one sharing terminal 320 (ST40). Here, the distribution terminal 310 and the sharing terminal 320 receive and install a shared application from the service server 100 in order to receive the service according to the present invention, and operate according to the execution of the shared application. In this case, the shared application includes a hash algorithm for calculating a hash value.

When the sharing terminal 320 is interested in or wants to purchase a product, the sharing terminal 320 clicks the corresponding sharing link (ST50), and based on this, the sharing terminal 320 applies a preset key value to the hash function to obtain the current hash value. Is calculated (ST60). The key value is a unique value, and may be information that can identify the client terminal 300, for example, a user ID or client terminal information, and may consist of information corresponding to the distribution terminal 310 or the sharing terminal 320. have.

The sharing terminal 320 transmits the sharing information including the current hash value and the previous block hash value, and verification request information consisting of a verification request message therefor, to the master terminal 200, thereby requesting verification of the shared information ( ST70). The verification request information may additionally include user-specific information such as a user ID or a client terminal ID, and the user-specific information may be distributor-specific information or sharer-specific information.

The master terminal 200 compares the verification request information received from the sharing terminal 320 with the normal hash value stored in the block chain to verify the shared information, and stores the shared information in the block chain in response to the verification result. Or discard it (ST80).

In this case, the master terminal 200 may verify whether the shared information is normal based on whether the previous block hash value received from the sharing terminal 320 exists as a previous block hash value previously stored in the chain block in step ST10.

In addition, the master terminal 200 directly calculates the current hash value using the information received from the sharing terminal 320, and compares the calculated current hash value with the current hash value received from the sharing terminal 320 to verify. It is also possible. That is, a key value corresponding to user-specific information is stored in the block chain, and the sharing terminal 320 calculates the current hash value by applying the key value recognized by itself to the hash function, and the current hash value and the user-specific Verification request information including information is transmitted to the master terminal 200. And, the master terminal 200 calls the key value corresponding to the user-specific information, calculates the current hash value by applying the called key value to the hash function, the current hash value currently calculated and the current hash value received from the shared terminal In the same case, it can be determined that the shared information is normal.

In addition, if the master terminal 200 determines that the shared information is normal by comparing the hash value, it creates a transaction based on the shared information and stores it in the blockchain, and if it is determined to be abnormal, discards the received shared information. do.

Subsequently, the master terminal 200 transmits the shared information verification result information in step ST80 to the distribution terminal 310 that has distributed the corresponding shared link (ST90). At this time, the master terminal 200 may transmit the verification result information to the distribution terminal 310 only when the verification result is normal. In addition, the shared information verification result information may include user-specific information (member sign-up user ID or user terminal identification information) corresponding to the shared terminal and a product ID corresponding to the shared link.

When the distribution terminal 310 receives the normal verification result from the master terminal 200, the distribution terminal 310 requests a shared reward to the service server 100 based on this (ST100). The shared reward request information may include user-specific information corresponding to the user, that is, the distribution terminal, user-specific information corresponding to the sharing terminal 320 (member sign-up user ID or user terminal identification information), and a product ID corresponding to the sharing link. have.

The service server 100 pays a preset sharing reward, for example, a certain point, as a reward for sharing a corresponding product to the distribution terminal 310 (ST110).

At this time, the service server 100 may be implemented to provide additional points to the distribution terminal 310 when purchasing a product from the sharing terminal 320. That is, the sharing terminal 320 displays and outputs a product page corresponding to the sharing link in connection with the master terminal 200 as the sharing link is clicked in step ST50, and performs purchase processing for the corresponding product. A series of etc. performs product shopping processing.

When the product is sold by the sharing terminal 320, the master terminal 200 provides product purchase reward request information including information on the distribution terminal distributing the sharing link to the corresponding sharing terminal to the service server 100, and the service server The 100 may additionally provide a product purchase reward to the distribution terminal 3210 based on the product purchase reward request information received from the master terminal 200.

That is, the service server 100 pays points to clients that have distributed the sharing link, but additionally pays points when product purchases are connected by the distributed sharing link.

In addition, in FIG. 6, the master terminal 200 provides the shared information verification result information to the distribution terminal 310, and the distribution terminal 310 requests a shared reward from the service server 100, but the master terminal 200 ) To the service server 100 by providing the shared information verification result information including the user's unique information corresponding to the distribution terminal 310 and the sharing terminal 320 and the purchased product ID to the corresponding distribution terminal 310 It is also possible to implement to provide.

100: service server, 200: master terminal,
300: client terminal,
310: distribution terminal, 320: sharing terminal.

Claims (9)

A distribution terminal that receives a sharing link for the product page selected by the service server and distributes it to at least one shared terminal, and a hash value corresponding to the shared link to the master terminal when the shared link distributed from the distribution terminal is clicked. A plurality of client terminals consisting of a transmitting shared terminal,
Multiple masters that store a hash value for verifying the shared information between the client terminals in the blockchain, and compare the hash value received from the shared terminal with the hash value stored in the blockchain to determine whether the shared information is normal Terminal and,
When the sharing information is determined to be normal by the master terminal, it is configured to include a service server that performs compensation processing for sharing a corresponding product page to a distribution terminal that has distributed a sharing link to the corresponding sharing terminal,
When the shared information is normal, the master terminal creates a transaction corresponding to the shared information and stores it in the blockchain, and when the shared information is abnormal, the shared information received from the sharing terminal is discarded. A shared reward system that verifies shared information.
The method of claim 1,
A shared reward system for verifying shared information in a block chain method, characterized in that the plurality of master terminals form a consortium block chain, which is a closed block chain method.
The method of claim 2,
The master terminal is a seller terminal that subscribes to a service server and sells products, and is configured to receive and execute a master program for performing shared information verification from the service server,
The service server is a shared reward system for verifying shared information in a block chain method, characterized in that when the master program of the master terminal is deleted or withdrawal from the member, the master terminal for the product is changed and set to another master terminal.
The method of claim 1,
Each block forming the block chain is composed of a block body including a block header including a previous hash value and a current hash value, and at least one transaction including a product ID and user-specific information. A shared reward system that verifies shared information.
The method of claim 4,
The shared link is configured to include a previous block hash value,
The sharing terminal transmits verification request information for the sharing information including the sharing link to the master terminal,
The master terminal determines that the shared information is normal when there is a previous block hash value equal to the previous block hash value of the shared information received from the shared terminal in the blockchain. Reward system.
The method of claim 4,
Key values corresponding to user-specific information are stored in the blockchain,
The sharing link is configured including the previous block hash value,
The shared terminal calculates the current hash value by applying the key value recognized by itself to the hash function, and transmits verification request information including the current hash value and user-specific information to the master terminal,
When the master terminal calls the key value corresponding to the user's unique information, applies the called key value to the hash function, calculates the current hash value, and the current hash value currently calculated and the current hash value received from the shared terminal are the same. A shared reward system that verifies shared information using a blockchain method, characterized in that it determines that the shared information is normal.
delete The method of claim 1,
The master terminal transmits the verification result information to the distribution terminal,
The distribution terminal performs a shared reward request to the service server based on the reception of the normal verification result,
The service server is a shared reward system that verifies shared information in a block chain method, characterized in that it is configured to provide a shared reward to a distribution terminal requesting a shared reward.
The method according to claim 1 or 8,
The master terminal is a seller terminal that sells products, and is registered as a member in the service server
The sharing terminal is provided with a product purchase related service by interlocking with the master terminal according to the click of the sharing link,
When the product is sold by the shared terminal, the master terminal provides product purchase reward request information including information on the distribution terminal distributing the shared link to the shared terminal to the service server,
The service server is a shared reward system for verifying shared information in a blockchain method, characterized in that the service server additionally provides product purchase rewards to the distribution terminal based on the product purchase reward request information received from the master terminal.

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