KR20200016499A - Sharing reward system for verifying an sharing information using blockchain - Google Patents

Abstract

The present invention relates to a technique capable of generating shared information for products by a participant terminal, storing such shared information by using a blockchain method, and verifying, by master terminals for selling products, whether the shared information generated by the participant terminal is authentic, in performing a marketing service through a shared link by using a social network, thereby ensuring the reliability of a shared information record and being capable of providing a shared reward to a client having distributed a corresponding shared link only with respect to normal shared information. According to the present invention, a shared reward system for verifying shared information by using a blockchain method comprises: a plurality of client terminals including a distribution terminal which receives, from a service server, a shared link for a product page selected by itself and distributes the shared link to at least one sharing terminal, and the at least one sharing terminal which transmits, to the master terminals, a hash value corresponding to the shared link distributed from the distribution terminal when the shared link is clicked; the master terminals storing, in a blockchain, a hash value for verifying the shared information between client terminals, and comparing the hash value received from the sharing terminal with the hash value stored in the blockchain to determine whether the shared information is normal; and the service server rewarding, for sharing of the product page, the distribution terminal having distributed the shared link to the sharing terminal when it is determined by the master terminals that the sharing information is normal.

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 the sharing information is stored in a blockchain method, and the participant in the master terminal selling the product The present invention relates to a technology for verifying the authenticity of shared information generated by a terminal to ensure reliability of shared information recording, and to provide shared rewards to clients who have distributed the corresponding shared link only for normal shared information. .

Due to the development of the online market, various forms of distribution are emerging from the forms of distribution that were established in the past and offline.

Recently, it has been further evolved from internet shopping malls and open markets to sell through social network services (SNS) or applications. However, in this case, there is a problem that the reliability of the individual purchase is low, there is a disadvantage that if the third party learned through the buyer wants to make a purchase, the producer has a disadvantage, and the buyer who recommends the purchase to the third party has no benefit There is a disadvantage that cannot be received.

Thus, in the case of propagating an advertisement, that is, a shared link through SNS, and a product is sold through the shared link, a reward service for providing a certain point to the corresponding shared link distributor is provided.

In this regard, Prior Art 1 (Korean Patent Registration No. 1749176) shares information about an advertiser's product installed or used by an advertiser's app on a user terminal or purchased with an acquaintance's terminal through a marketing platform. When installing, driving, viewing, and purchasing the app of the corresponding advertiser in the terminal, a configuration is known for earning rewards to the user terminal provided with the terminal of the acquaintance and the advertisement usage history.

In addition, Prior Art 2 (Korean Patent Publication No. 10-2017-0077479) assigns a first referrer code to a first referrer account registered as a member, and accesses the first product page from a first referrer terminal connected to the first referrer account. Receives a sharing request for, generates link content for the first product page including the first recommender code according to the sharing request, and purchases the first product of the recommendation terminal connected to the web server through the link content. By judging, it is known to provide a reward to the first recommender account according to whether the first product is purchased.

These precedents provide a certain amount of rewards to customers who are involved in the advertising or sale of the products, and are likely to attract new customers who are familiar with them. Guaranteed certain rewards can benefit both mall operators and customers.

Rewards, however, do not give credibility to the management of shared information, even though it must be provided only to the sharers involved in the sharing, because the rewards are given to the sharer by the mall operator. I can't do it.

That is, when sharing information is leaked to a malicious person, a third party who is not related to sharing may be provided with a reward. This may result in a loss of the seller of the product, or a result of a decrease in rewards paid to other sharers, which may cause a problem that the provision of a reward service designed with good intention is inevitable or meaningless.

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

1. Korean Patent Registration No. 1749176 (Invention name: Unlimited reward type marketing platform system based on social network and its providing method) 2. Korean Patent Publication No. 10-2017-0077479 (Invention name: Rewards provision method according to the web server and marketing)

Accordingly, the present invention has been made in view of the above circumstances, and a product sharing network is formed between the clients through a sharing link for the product, and the clients participate in the recording of the shared information, but the product is clicked by the client when the sharing link is clicked. The master terminal, which stores normal shared information on the network, verifies the authenticity of the shared information generated by clicking the shared link, and performs reliable management of the recorded shared information. Its technical purpose is to provide a shared reward system that verifies shared information in a blockchain method that enables shared rewards to be distributed to clients.

According to an aspect of the present invention for achieving the above object, a distribution terminal for receiving a sharing link for a product page selected by the service server to distribute to at least one or more shared terminals, and the shared link distributed from the distribution terminal is A plurality of client terminals comprising a shared terminal transmitting a hash value corresponding to the corresponding shared link to the master terminal as clicked, and a hash value for verifying sharing information between the client terminals are stored in the block chain, and the shared terminal A plurality of master terminals that determine whether the shared information is normal by comparing the hash value received from the hash value stored in the blockchain and a shared link to the shared terminal when the shared information is determined to be normal by the master terminal. We shared product page about distribution terminal which distributed To perform the compensation processing for the block chain which is characterized in that comprises a service server where the shared reward system for verifying the shared information is provided.

In addition, the plurality of master terminals is provided with a shared reward system for verifying the shared information in a blockchain method, characterized in that forming a consortium blockchain of a closed blockchain method.

In addition, the master terminal is a seller terminal that is a member of the service server to sell the product, is configured to receive and execute a master program for performing the shared information verification from the service server, the service server is a master program of the master terminal A shared reward system is provided for verifying shared information in a blockchain manner, in which a master terminal for a corresponding product is changed and set to another master terminal upon deletion or withdrawal of a member.

In addition, each block forming the block chain comprises a block header including a previous hash value and the current hash value, and a block body consisting of at least one transaction including a product ID and user unique information. A shared reward system for verifying shared information in a chained 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, the master terminal received from the shared terminal in the block chain There is provided a shared reward system for verifying shared information in a blockchain manner, in which if the previous block hash value equal to the previous block hash value of the shared information exists, the corresponding shared information is determined to be normal.

In addition, a key value corresponding to user unique information is stored in the blockchain, and the shared link is configured to include a previous block hash value, and the sharing terminal applies a key value recognized by the shared terminal to a hash function, thereby providing a current hash value. In addition to this, the verification request information including the current hash value and the user's unique information is transmitted to the master terminal, and the master terminal calls the key value corresponding to the user's unique information, and applies the called key value to the hash function. In addition to calculating the hash value, the shared reward system for verifying the shared information in a blockchain method, characterized in that it is determined that the corresponding shared information is normal when the current hash value currently calculated and the current hash value received from the shared terminal are the same. This is provided.

In addition, if the shared information is normal, the master terminal generates a transaction corresponding to the shared information and stores it in the blockchain, and if the shared information is abnormal, discards the shared information received from the shared terminal. A shared reward system for verifying shared information in a chained manner is provided.

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, the service server is shared with the distribution terminal requesting the shared reward Provided is a shared reward system for verifying shared information in a blockchain manner, wherein the shared reward system is configured to provide a reward.

In addition, the master terminal is a seller terminal that sells the product, is registered as a member registered in the service server, the shared terminal is provided with the product purchase-related services in conjunction with the master terminal according to the share link click, the master terminal is shared terminal When the product is sold by the service, the product purchase reward request information including the distribution terminal information for distributing the shared link to the corresponding shared terminal is provided to the service server, the service server based on the product purchase reward request information received from the master terminal There is provided a shared reward system for verifying the shared information in a blockchain method, characterized in that further providing a product purchase reward for the distribution terminal.

According to the present invention, when the sharing link is clicked by the client, the master terminal, which stores the normal sharing information for the product, verifies the authenticity of the sharing information generated by the sharing link click based on the hash value based on the hash value, and then the normal sharing information. By managing to create and store transactions only, it is possible to more reliably manage shared information.

In addition, by providing a shared reward to a client who distributes the shared link only when it is determined to be normal sharing information through the master terminal, the shared reward is prevented from being provided to a third party who does not participate in the sharing, thereby providing a more stable reward service. It can be provided.

1 is a schematic diagram of a shared reward system for verifying shared information in a blockchain manner according to a first embodiment of the present invention;
FIG. 2 is a diagram illustrating the types of client terminals 300 shown in FIG. 1 classified according to functions according to shared link distribution.
3 and 4 are diagrams for explaining the blockchain and block structure.
FIG. 5 is a flowchart for explaining an operation of a shared reward system for verifying shared information in the blockchain method shown in FIG. 1; FIG.

Configurations shown in the embodiments and drawings described in the present invention are merely preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, the scope of the invention is the embodiments and drawings described in the text It should not be construed as limited by That is, since the embodiments may be variously modified and may have various forms, the scope of the present invention should be understood to include equivalents for realizing the technical idea. In addition, the objects or effects presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereby.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. The terms defined in the commonly used dictionary should be interpreted to coincide with the meanings in the context of the related art, and should not be construed as having an ideal or excessively formal meaning not explicitly defined in the present invention.

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

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

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

At this time, the master terminal 200 stores the hash value for the shared link information in the blockchain when the normal shared link is generated, and generates the hash value generated by the click of the shared link of the client receiving the shared link. Received from, and compares the received hash value and the normal hash value and transmits the comparison result information to the client terminal (300).

For example, the first client terminal 300 displays a shared link (short address code for accessing an app or a web page) for a specific product on an app or a web page of the service server 100, such as Facebook. It distributes through a social network service, and the second client terminal 300 accesses an app or a web page for purchasing the corresponding product through this sharing link, thereby enabling the purchase of the product.

An app or web page for purchasing a specific product displays a sharing menu for sharing the product through a social network, and the user clicks on the sharing menu to select a social network service to be shared, and a service server ( 100) generates a shortcut address code for accessing an app or a web page for purchasing the corresponding product and then starts the shortcut 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 the shortcut address code, and if one of the users selects the shortcut address code through their client terminal, they can go to the app or web page to purchase the product. In this case, the client terminal calculates a hash value for the shared information and requests verification of the shared information through a blockchain consisting of master terminals.

At this time, the client terminal 300 transmits the shared link provided from the service server 100 to at least one other client terminal.

That is, the client terminal 300 receives a sharing link for the product page selected by the service server 100 as shown in FIG. 2 and distributes it to at least one sharing terminal 320 and the distribution terminal 310. As the sharing link distributed from the distribution terminal 310 is clicked, the sharing terminal 320 generates a hash value corresponding to the corresponding sharing link and transmits the hash value to the master terminal 200. At this time, in FIG. 2, each sharing terminal 320 may be a distribution terminal for the lower sharing terminal by requesting a sharing link to the service server 100. That is, any shared terminal performs an operation as a shared terminal for a distribution terminal that has distributed a shared link to itself, and performs an operation as a distribution terminal for the other shared terminal when the shared link is distributed to another shared terminal. .

In addition, the sharing terminal 320 generates a hash value for the corresponding shared link by using a predetermined hash function in response to the sharing link click, and provides the same to the master terminal 200. At this time, the master terminal 200 transmits the verification result for the corresponding shared link to the previous client terminal that 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 distributes the terminal according to the transmission or reception state of the shared link according to the execution of the shared application. 310 or 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 included in a plurality of persons or institutions that have been recognized by the service server 100, and these master terminals constitute one closed blockchain. .

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

Blockchain provides distributed ledger system using P2P network, and blockchain technology ensures its own integrity and stability. Basically, the blockchain generates small data called 'block' as the data to be managed and is stored as distributed data in the form of a chain-shaped linkage generated in a P2P manner. It is a distributed computing technology that no one can modify arbitrarily, and everyone can read the change.

The inventors of the present invention provide a function that can discriminate against malicious / counterfeit shared records if the blockchain technology is a technology that can prevent forgery and tampering with data. The present invention has been proposed in view of the possibility.

A commonly used blockchain technology is the public blockchain. In the case of public blockchains, anyone can participate in the network to read, verify, and create transactions. In addition, the public blockchain uses a consensus algorithm that allows partial branching, and thus has a disadvantage in that the processing speed is very slow.

Consortium Blockchains, on the other hand, can use network membership to restrict participation. Therefore, only the authorized terminal plays the role of verification, transaction creation, and the like. In addition, the consensus algorithm also does not allow partial branching and uses a fast Byzantine Fault Tolerance (BFT) 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. In contrast, shared information determined to be abnormal is discarded without being stored in the blockchain. That is, the master terminal 200 can manage the shared information reliably by storing only the normal shared information in the blockchain.

In addition, the master terminal 200 stores the shared information in a blockchain manner.

3 and 4 are diagrams for explaining a block chain structure, FIG. 3 is a diagram illustrating a configuration of an arbitrary block (block #n), and FIG. 4 is a block header of a plurality of blocks. It is a figure which shows the shape connected to a chain form by this.

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 the block, thereby forming a structure in which the block and the block 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 and a Merkle tree root hash value are recorded. That is, as shown in FIG. 4, in order to connect the blocks in a chain form, the previous block hash value, the current block hash value, and the 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 unique information (user number) is stored in a transaction unit.

In this case, if the information about the entire product is registered for each transaction to verify the shared information using the block structure, the storage space may not be effectively used. Accordingly, the present invention can reduce the size of a transaction and minimize the comparison time required to determine the authenticity of the shared information through the manner in which the hash value for the normal shared information is stored in the transaction. At this time, in each transaction, product information (ex, product name, product ID, etc.) and user unique number (ex, user ID, or user terminal number) may be stored together with the hash value of the corresponding product.

In this case, the plurality of master terminals 200 are connected to each other to form a consortium blockchain. Each master terminal 200 stores a hash value for normal shared information in the blockchain and shares it with the client terminal 300. When the hash value for the link is received, it is determined whether the shared link is normal by comparing with the hash value stored in the blockchain.

5 is a flowchart illustrating an operation of a shared reward providing system for performing blockchain-based sharing information verification 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 subscribed to the member, and the master terminal 200 is installed and executed by the master application, through the client terminal 300. You will be authorized to verify the authenticity of shared shared links and to record shared information on the blockchain.

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

The master terminal 200 stores normal sharing information including a hash value for the shared link in the block chain (ST10). In this case, a transaction including product identification information for each shared link propagated and the user terminal 300, that is, user specific information about the shared terminal 320, which has shared the corresponding product link is generated, and at least one transaction is a block body. Stored at 22.

In the above state, when the service server 100 receives a request for creating a shared link from the distribution terminal 310 to the service server 100, the service server 100 transmits the shared page requested product page address and the previous block hash value. Create a shared link to include and transmit to the distribution terminal 310 (ST20, ST30). In this case, 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 a corresponding product from the corresponding master terminal 200 when a sharing link request is made from the distribution terminal 310.

The distribution terminal 310 distributes the sharing information including the shared link and its own user information, that is, the distributor's unique information, to the at least one sharing terminal 320 (ST40). Herein, the distribution terminal 310 and the sharing terminal 320 receive and install a shared application from the service server 100 to receive the service according to the present invention, and operate according to the execution of the shared application. At this time, the shared application includes a hash algorithm for calculating a hash value.

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

The sharing terminal 320 requests verification of the sharing information by transmitting sharing request information including the current hash value and the previous block hash value, and verification request information including the verification request message to the master terminal 200 ( ST70). The verification request information may further include user unique information such as a user ID or a client terminal ID, and the user unique information may be distributor specific information or sharer unique information.

The master terminal 200 verifies the shared information by comparing the verification request information received from the shared terminal 320 with the normal hash value stored in the blockchain, and stores the shared information in the block chain in response to the verification result. Or discard (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 shared terminal 320 exists as the 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 shared terminal 320, and compares the calculated current hash value and the current hash value received from the shared terminal 320 to verify It is also possible. That is, a key value corresponding to user unique information is stored in the blockchain, and the shared terminal 320 calculates a current hash value by applying a key value recognized by the user to a hash function, and also a current hash value and a user unique value. The verification request information including the information is transmitted to the master terminal 200. Then, the master terminal 200 calls a 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 this case, it can be determined that the corresponding shared information is normal.

In addition, if it is determined that the corresponding shared information is normal by comparing the hash values, the master terminal 200 generates a transaction based on the shared information and stores the transaction in the blockchain, and if 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 which distributed the corresponding shared link (ST90). In this case, the master terminal 200 may transmit the verification result information to the distribution terminal 310 only when the verification result is normal. The shared information verification result information may include user unique information (member subscription user ID or user terminal identification information) corresponding to the sharing terminal and a product ID corresponding to the sharing link.

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

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

In this case, the service server 100 may be implemented to pay additional points to the distribution terminal 310 when purchasing the product of the shared terminal 320. That is, when the sharing terminal 320 clicks on the sharing link in step ST50, the sharing terminal 320 displays and outputs a product page corresponding to the sharing link in conjunction with the master terminal 200 and performs a purchase process for the corresponding product. And the like perform a product shopping process.

When the product is sold by the shared terminal 320, the master terminal 200 provides the service server 100 with the product purchase reward request information including the distribution terminal information in which the shared link is distributed to the shared terminal. 100 may further provide a product purchase reward to the corresponding distribution terminal 3210 based on the product purchase reward request information received from the master terminal 200.

That is, the service server 100 pays a point to a client who distributes a shared link, but additionally pays a point when a product purchase is connected by the distributed shared 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 the shared server to the service server 100. However, the master terminal 200 ) By providing the shared information verification result information including the user specific information corresponding to the distribution terminal 310 and the sharing terminal 320 and the purchase product ID to the service server 100, the shared reward to the distribution terminal 310 It is also possible to implement to provide.

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

Claims (9)

A distribution terminal that receives a sharing link for a product page selected by the service server and distributes the same to at least one shared terminal, and a hash value corresponding to the shared link as the shared link distributed from the distribution terminal is clicked to the master terminal. A plurality of client terminals comprising a shared terminal for transmitting;
A plurality of masters storing hash values for verifying sharing information between the client terminals in a block chain, and comparing hash values received from the shared terminals with hash values stored in the block chain to determine whether the shared information is normal; Terminal,
If the master information is determined that the sharing information is normal, and comprises a service server for performing a compensation process for sharing the corresponding product page for the distribution terminal that has distributed the shared link to the shared terminal Shared reward system for verifying shared information in a blockchain manner.
The method of claim 1,
The plurality of master terminal is a shared reward system for verifying the shared information in a blockchain method, characterized in that forming a consortium blockchain of a closed blockchain method.
The method of claim 2,
The master terminal is a seller terminal that is a member of the service server and sells the product, 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 the shared information in a blockchain method characterized in that when the master program of the master terminal is deleted or withdrawal of the member changes the master terminal for the product to another master terminal.
The method of claim 1,
Each block forming the blockchain is composed of a block header including a previous hash value and a current hash value, and a block body including at least one transaction including a product ID and user unique information. Shared Rewards system that verifies shared information.
The method of claim 4, wherein
The shared link is configured to include a previous block hash value,
The sharing terminal transmits verification request information about the sharing information including the sharing link to the master terminal,
When the master terminal has a previous block hash value that is the same as the previous block hash value of the shared information received from the shared terminal in the block chain, the shared terminal verifies the shared information in a blockchain manner, characterized in that the shared information is normal. Rewards System.
The method of claim 4, wherein
The block chain stores a key value corresponding to user unique information,
The shared link is configured to include a previous block hash value.
The shared terminal calculates a current hash value by applying a key value recognized by the shared terminal to the hash function, and transmits verification request information including the current hash value and user unique information to the master terminal.
When the master terminal calls a key value corresponding to the user's unique information, calculates the current hash value by applying the called key value to the hash function, and when the presently calculated current hash value and the current hash value received from the shared terminal are the same. A shared reward system for verifying shared information in a blockchain method, characterized in that it is determined that the shared information is normal.
The method according to any one of claims 1 to 5 or 6,
If the shared information is normal, the master terminal generates a transaction corresponding to the shared information and stores the transaction in the blockchain, and if the shared information is abnormal, discards the shared information received from the shared terminal. Shared Rewards system that verifies shared information.
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 for verifying the shared information in a blockchain method, characterized in that configured to provide a shared reward for the distribution terminal requesting the shared reward.
The method according to claim 1 or 8,
The master terminal is a seller terminal that sells products, and is registered with a service server.
The sharing terminal receives a product purchase related service in association with the master terminal according to the sharing link click,
When the product is sold by the shared terminal, the master terminal provides the product purchase reward request information including the distribution terminal information for distributing the shared link to the corresponding shared terminal to the service server,
The service server is a shared reward system for verifying the shared information in a blockchain method, characterized in that further providing a product purchase reward to the distribution terminal based on the product purchase reward request information received from the master terminal.

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