KR20220062217A - Method of Tracking Origin of Product Based on Blockchain - Google Patents

Abstract

The blockchain-based origin tracking method creates a smart contract by assigning a unique ID to each factory that produces raw materials, at least intermediate products, and final products. Updating the smart contract related to the raw material factory, determining the origin-related information of the intermediate product and verifying the local production to update the smart contract related to the intermediate product factory, determining the origin-related information of the final product and verifying the local production updating the smart contract related to the final product factory, and publishing the smart contract on a site accessible by the consumer via wireless communication. A smart contract is based on a blockchain, where the blockchain has at least two participants: a raw material testing/inspection institution, an intermediate product testing/inspection institution, a product certification body, and a government or registrar.

Description

Method of Tracking Origin of Product Based on Blockchain

The present invention relates to a blockchain-based product origin tracking method.

In the case of products manufactured from raw materials, intermediate products, and final products (finished products), the country producing the raw material may be different from the country producing at least one of the intermediate product and the final product.

In this case, the country of origin for the product is indicated by applying the provisions of the cross-border FTA on the accumulation of origin, or the country where the production value accounts for a high proportion of the value of the finished product is indicated as the origin of the product.

However, this country of origin mark is for preferential tax rates in the import process, and from the consumer's point of view, more attention is paid to which country the raw materials were produced in, in which country the intermediate products were produced, and finally in which country the finished products were manufactured. can be seen as large.

In other words, selling products manufactured in other countries with labels as if they were made domestically is creating a wave of fake domestic products flooding the market, so consumers can verify the source of the product through an appropriate tracking system and ensure that the product is actually It is necessary to check whether the product is genuine and manufactured in Korea.

This is to create a market environment that consumers can ultimately trust in the production and sale of products, and requires a reliable origin indication and tracking system from raw materials to final products (see Patent Document 1).

In the apparel industry, most brands do not directly operate manufacturing plants, and there are subcontractors that carry out production under the brand's production instructions for each production process.

In other words, the central agency does not oversee the entire process from production to sales, but the production entity at each stage carries out production and control according to their own standards. As such, due to the absence of central control, production that reflects the environment and ethics is made depending on the production participants at each stage. There is a possibility.

Therefore, a reliable origin indication and tracking system is required for each of the fabric producers, subsidiary material producers, fabric processing companies, sewing companies, and sellers required for garment manufacturing.

Korean Patent Registration Publication No. 10-2013527

The present invention is designed to solve the above problems, and one technical problem to be achieved by the present invention is that consumers check the source from raw materials to final products for products manufactured from raw materials, intermediate products, and final products, and The goal is to provide a blockchain-based origin tracking method that can confirm whether the product is genuine.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems to be solved that are not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

According to at least one embodiment of the present invention, generating a smart contract by assigning a unique ID to each factory that produces raw materials, intermediate products, subsidiary materials, and final products; Updating the smart contract related to the raw material factory by confirming the production, updating the smart contract related to the intermediate product factory by identifying the origin-related information of the intermediate product and confirming the local production, the country of origin related information of the subsidiary material updating the smart contract related to the subsidiary material factory by identifying and checking local production; Publishing the smart contract on a site accessible through wireless communication, wherein the smart contract is based on a block chain, wherein the block chain is a raw material testing/inspection institution, intermediate product testing/inspection institution, subsidiary material test /Provides a blockchain-based origin tracking method with at least two participants: an inspection body, a product certification body, and a government or registration authority.

In at least one embodiment of the present invention, the block chain-based origin tracking method includes the steps of attaching or marking a first identification code linked to the smart contract to a package of raw materials produced at the time of production of the raw materials; attaching or marking a second identification code linked to the smart contract on the package of the intermediate product produced during the production of the intermediate product; 3 Attaching or marking the identification code, and attaching or marking the fourth identification code linked to the smart contract on the package of the final product produced during the production of the final product.

In at least one embodiment of the present invention, the first identification code is linked to the second identification code in a ratio of 1:n (n=1 to m, m is a natural number) or n:1, and the second identification code is linked to the fourth identification code by 1:n or n:1.

In at least one embodiment of the present invention, the first identification code includes at least the origin information of the raw material, the second identification code includes at least the origin information of the intermediate product, and the fourth identification code includes: at least the country of origin information of the final product, the second identification code is linked with at least the country of origin information of the first identification code, and the fourth identification code is linked with at least the country of origin information of the second identification code.

In at least one embodiment of the present invention, the first identification code and the third identification code are linked to the second identification code in 1:n (n=1 to m, m is a natural number) or n:1, respectively and the second identification code is linked to the fourth identification code in a 1:n or n:1 ratio.

In at least one embodiment of the present invention, the first identification code includes at least the origin information of the raw material, the second identification code includes at least the origin information of the intermediate product, and the third identification code includes: at least the origin information of the auxiliary material, the fourth identification code includes at least the origin information of the final product, and the second identification code includes at least the origin information of the first identification code and the origin of the third identification code. information, and the fourth identification code is linked with at least the origin information of the second identification code.

In at least one embodiment of the present invention, the first identification code includes at least the origin information of the raw material, the second identification code includes at least the origin information of the intermediate product, and the third identification code includes: at least including country of origin information of the auxiliary material, the fourth identification code includes at least country of origin information of the final product, the second identification code is linked with at least the country of origin information of the first identification code, and the fourth identification code The code is linked with at least the origin information of the second identification code and the origin information of the third identification code.

In the present specification, each embodiment is independently described, but each embodiment can be combined with each other, and the combined embodiment is also included in the scope of the present invention.

The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the descriptive aspects, embodiments and features described above, further aspects, embodiments and features will become apparent by reference to the drawings and the detailed description below.

According to at least one embodiment of the present invention, for products manufactured from raw materials, intermediate products, and final products, a blockchain-based system that allows consumers to check the source from raw materials to final products and to confirm whether the products are genuine. It has the effect of providing a method of tracing the origin.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

1 is a conceptual diagram of a blockchain-based product origin tracking system according to at least one embodiment of the present invention.
2 is a flowchart for explaining a block chain-based product origin tracking method according to at least one embodiment of the present invention.
3 is a conceptual diagram illustrating an example of using a QR code as an identification code in a blockchain-based product origin tracking system according to at least one embodiment of the present invention.
4 to 9 are conceptual diagrams for explaining the interlocking relationship of QR codes in each step in the blockchain-based product origin tracking system according to at least one embodiment of the present invention.

Hereinafter, specific embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

1 is a conceptual diagram of a blockchain-based product origin tracking system 100 according to at least one embodiment of the present invention. 1 shows an example of tracking the origin of clothing.

As shown in FIG. 1 , the fabric producer 110 manufactures a fabric using raw materials for textiles (eg, cotton) produced in a specific region and supplies it to the fabric processor 115 . The fabric processing company 115 supplied with the fabric performs necessary processing on the fabric.

The fabric test/inspection institution 120 inspects the fabric processed by the fabric processing company 115 and provides data on the specification and quality of the fabric. Through the specification and quality data of the fabric provided by the fabric testing/inspection organization 120 , it is possible to determine pass/fail for the quality of the fabric.

In the garment production, various auxiliary materials (eg, buttons, zippers, etc.) are required in addition to the fabric. In the example shown in FIG. 1 , the auxiliary material producer 125 produces and supplies the necessary auxiliary materials.

The subsidiary material test/inspection agency 130 provides data on the specifications and quality of the subsidiary material by inspecting the subsidiary material supplied by the subsidiary material producer 125 . Through the specification and quality data of the auxiliary material provided by the auxiliary material test/inspection organization 130, it is possible to determine pass/fail for the quality of the auxiliary material.

Fabrics that have passed the tests and inspections of the fabric testing/inspection agency 120 and subsidiary materials that have passed the tests and inspections of the fabric and subsidiary material testing/inspection agencies 130 are supplied to the sewing company 135 to produce products.

The product produced by the sewing company 135 is certified with respect to quality and specifications by the product certification authority 140 , and is sent to the sales company 145 or sent to the distribution warehouse 155 . Products sent to the vendor 145 are registered with a registration authority (or government agency) 150 .

A consumer (end user) 160 may check information about a product registered with the registration authority 150 or a production process of a product stored in the distribution warehouse 155 through the consumer use interface.

At this time, information about the production process of the product stored in the product or the logistics storage warehouse 155 or the product registered with the registration authority 150 that the consumer 160 checks through the consumer use interface is the material or product in each step. If the country of origin information (fabric, subsidiary material, intermediate product, final product, etc.) is included and this information is safe and reliable information, the consumer 160 can purchase with confidence after confirming the country of origin when purchasing the product. .

The conventional clothing production process consists of three steps: planning, production, and sales. In the planning stage, product planning and design by brand, raw material development and ordering, and production quantity and company selection are made. In the production stage, raw materials are delivered from a raw material producer (outsourced) to a bar material company (outsourced), and in this stage, the brand performs quality control and production process monitoring. In the sales phase, the brand's inventory management and in-store and online sales take place.

In such a conventional garment production process, there is a risk of environmental problems caused by raw material production and ethical problems caused by sewing companies.

Information on the production process of the product stored in the product or the logistics storage warehouse 155 registered with the registration authority 150 that the consumer 160 checks through the consumer use interface is the material or product (fabric, It contains information on the origin of subsidiary materials, intermediate products, final products, etc.), and in order for this information to be safe and reliable information, a blockchain-based smart contract can be used.

A smart contract is a system that pre-programs the contents agreed upon by the contracting parties in advance, puts them in the electronic contract document, and automatically executes the contract contents when all these contract conditions are satisfied. In other words, a smart contract is a digital electronic contract function that allows a desired contract to be concluded between individuals (P2P) without the intervention of a third-party guarantee institution in the middle.

There are basically two types of blockchain-based smart contracts: a blockchain database that stores all transaction logs and a database that stores the state of the smart contract.

A smart contract can be said to be an application whose state can be changed, and the state of a smart contract can be said to be a toilet used by the application, and the input value for changing it is included in the transaction.

Smart contracts expose two interfaces: Transaction and Query. The interface through the transaction changes the state of the smart contract while saving it in the transaction database, and the query is the operation of reading the state of the smart contract without leaving a record in the transaction database. That is, a transaction executes write, delete, and modification, and a query executes only inquiry through read.

For example, the transaction of goods operates through a sequence of (i) record storage, (ii) product inquiry, and (iii) contract fulfillment in a smart contract system.

In record storage, the seller creates a transaction by coding the upload of the product and then sending it to the blockchain. When a product registration transaction occurs, all nodes in the network share the product registration transaction, create a block, and then broadcast the created block. Each node that receives the block adds the block to the end of its block chain and synchronizes its smart contract database by applying the transaction stored in the block. Through this process, all blockchain nodes share the smart contract state database.

In product inquiry, the buyer inquires the product on the blockchain network. Writing to a smart contract generates a transaction, but reading a pre-stored value does not generate a transaction. Since there is no need to change any data in the blockchain, only the state value stored in the smart contract database is searched, query information does not need to be synchronized to the blockchain, and it can respond immediately regardless of the block synchronization timing.

In contract fulfillment, when a buyer sends a transaction to purchase a product, the transaction is shared and synchronized to the blockchain network. Registers the product buyer in the smart contract database of all nodes and sends the payment to the seller. By doing so, the ownership of the registered product is transferred from the seller to the buyer.

As shown in Fig. 1, blockchain participants according to at least one embodiment of the present invention include raw material testing/inspection institutions, subsidiary material testing/inspection institutions, product certification institutions, and registration institutions. The consumer can at least access the registration authority through the consumer use interface to check the production process information.

Smart contracts lower the risk of hacking, reduce security costs, reduce fees because no intermediaries are required, and shorten data integrity or integrity verification time. In addition, due to the transparency of the contract, regulatory costs are reduced, the risk of double payment is eliminated, information and communication system construction costs are reduced, and new business services can have scalability. Smart contracts can be effective in fields where there are many repetitive contracts of a certain type, where contracts between remote parties are required, and where product distribution tracking is required.

2 is a flowchart for explaining a block chain-based product origin tracking method according to at least one embodiment of the present invention.

2 shows an example in which smart contracts are updated throughout the manufacturing process of clothing, and the consumer confirms the origin of the product through the smart contract for the final product.

Each factory from raw material to final product is given a unique ID, which becomes a smart contract for that factory (step S210). A full record of the factory's compliance, audit facts, awards, and shortcomings is recorded in the smart contract with the approvers and authors.

For example, in the case of a textile supplier, the inspector examines invoices, receipts, and import documents related to the origin of the fabric (step S215). In this case, the inspector inspects the factory, the machine facility, and the product to confirm whether the fabric is actually produced on site (step S220). Tests are randomized, and different examiners may visit.

When the inspector is satisfied with the process, a memo is made and the process is signed with a digital signature (step S225). Through this, the smart contract related to the factory is updated (step S230).

When the inspector performs a memo and digital signature for the entire process (step S235), the smart contract of the supplier related to the factory is updated through this (step S240). A supplier can be anyone involved in the supply chain, including raw material producers, end-product manufacturers, distributors, wholesalers and retailers. This smart contract is disclosed for anyone to see (step S245).

Now, the consumer can view the state of the smart contract through the consumer use interface and confirm the origin of the product to be purchased (step S250). In addition, depending on the granularity of the process desired by the manufacturer, the source related to the manufacturing can be identified.

That is, a tracking system including all major producers who want to be included in the blockchain-based product origin tracking system according to at least one embodiment of the present invention is built, and a distributed network is executed to test necessary from manufacturers to consumers. through the process of making it publicly available online.

More specifically, an inspector inspects a textile manufacturing plant to verify import receipts from a particular region to confirm that the raw material used (eg, cotton) was actually produced and supplied in that particular region. When the import receipt is verified, the smart contract is updated to indicate that cotton (cotton) produced in a specific region is being used in the production of the fabric sheet.

Fabric manufacturers make fabric into sheets. The manufactured sheet is cut to a predetermined length, and a QR code linked to the smart contract is attached (or marked) to a predetermined portion of each sheet. This can be performed in units of boxes rather than sheets. The fabric is then shipped to the garment manufacturer.

In a garment maker, inspectors inspect factories, write notes and sign smart contracts. Garment manufacturers start sewing the fabric into fabric using sheets. Before starting sewing, scan the QR code to register with the fabric used in the sewing process.

When the garment is complete, the line worker attaches a sticker to the garment tag. The sticker is marked with a QR code, which leads to the clothing manufacturer's smart contract. Previous QR codes are linked with this sticker that connects smart contracts.

The finished garment is shipped to the store, and the sticker is updated to show which store the product was shipped to.

At the store, the shopper buys clothes and scans the QR code on a sticker affixed by the apparel maker through a smartphone. When the scan is complete, you will be redirected to a mobile site where all information about the clothing is stored. This allows buyers to check the entire process from the area where the cotton is harvested to the area where the garment is made, through the clothing company's smart contract, which records all processes related to garment manufacturing.

In other words, when purchasing a product, a buyer can scan the product's QR code to check the origin of the product (whether the product is genuine).

In the case of online sales, the above procedure can be performed by providing the buyer with a smart contract that shows all processes related to the clothing sold on the store's website.

As such, in at least one embodiment of the present invention, the purchaser can ascertain and track the origin of the product. Each manufacturer can specify the details they wish to disclose. By linking and updating smart contracts from each stage of the supply chain, it is possible to establish a thorough and secure system that proves the origin of a product.

Random factory inspections can also be set to a specific standard by assigning unique IDs to independent inspectors and a unique ID for each plant. By providing the buyer (consumer) with a website where they can view the smart contract, the buyer can grasp the specific information of the purchased product at a glance. The tracking function for this information is set in the blockchain so that it cannot be forged.

In at least one embodiment of the present invention, the supplier attaches a small identification code (eg, a QR code) to the package. QR codes can be laser etched, printed, or provided as a sticker, and the corresponding QR image is automatically generated by the software.

In addition, suppliers have a unique identifier and company code for each product, and anyone in the supply chain can get a copy of the retailer's mobile app where they can scan the QR code.

Users can scan the QR code to go to a link on their smartphone or download the app to verify that the product is genuine.

The block chain-based product origin tracking system 100 according to at least one embodiment of the present invention may be a hybrid system consisting of a mobile web page, a block chain for proof of origin, and an online portal/dashboard, system management, This includes adding creators, tracking user data, and more. In addition, the mobile app can be used to enhance the system to enhance the customer experience.

3 is a conceptual diagram illustrating an example of using a QR code as an identification code in the blockchain-based product origin tracking system 100 according to at least one embodiment of the present invention.

In the example shown in FIG. 3 , the fabric producer 110 may attach or mark the QR code 310 , which is the first QR code, on the package of the fabricated fabric. The fabric processing company 115 may attach or mark the QR code 320, which is the second QR code, on the package of the processed fabric. At this time, the QR code 310, which is the first QR code, is interlocked with the QR code 320, which is the second QR code, so that the source of the fabric used for processing can be known.

Similarly, the subsidiary material producer 125 may attach or mark the QR code 330, which is the third QR code, on the package of the produced subsidiary material. The sewing company 135 may attach or mark the QR code 340, which is the fourth QR code, on the package of the manufactured clothing. At this time, the fourth QR code, the QR code 340, is linked with the second QR code, the QR code 320, and the fourth QR code, the QR code 340, to know the source of the fabric and subsidiary materials used in the manufacture of clothing. make it possible

4 to 9 are conceptual diagrams for explaining the interlocking relationship of QR codes of each step in the blockchain-based product origin tracking system 100 according to at least one embodiment of the present invention.

4 to 9 are the first QR code 310, which is the first QR code attached or marked by the fabric producer 110 shown in FIG. The second QR code attached or marked QR code 320, the third QR code 330 attached or marked on the package of the subsidiary material produced by the subsidiary material producer 125, and the sewing company 135 An interlocking relationship between the fourth QR code, which is the QR code 340 attached or marked on the package of manufactured clothes, will be described.

4 is a case in which the package of the fabric produced by the producer 110, the package of the fabric processed by the fabric processing company 115, and the package of the garment manufactured by the sewing company 135 correspond 1:1. Representing the relationship, the QR code 310 is linked to the QR code 320 and the QR code 320 is linked to the QR code 340, and finally the fabric producer 110 recorded in the QR code 310 is The origin information of the fabric produced and the origin information of the fabric processed by the fabric processing company 115 recorded in the QR code 320 are linked to the QR code 340 .

Accordingly, the consumer can check the origin of the fabric produced by the producer 110 and the fabric processed by the fabric processor 115 by simply scanning the QR code 340 attached or marked on the package of the clothing.

The one-to-one correspondence between the package of the fabric produced by the producer 110 and the package of the fabric processed by the fabric processing company 115 means that the fabric of one package of the fabric produced by the producer 110 is a fabric processing company. (115) means that it is produced in one package of the processed fabric.

5 shows that the package of the fabric produced by the producer 110 corresponds to the package of the fabric processed by the fabric processing company 115 and 1:n (n is a natural number), and the fabric processed by the fabric processing company 115 It represents the interlocking relationship when the package and the garment package manufactured by the sewing company 135 correspond 1:1, and the QR code 310 is linked to the QR code 320-1 and the QR code 320-2. and the QR code 320-1 and the QR code 320-2 are linked to the QR code 340-1 and the QR code 340-2, respectively, and finally the fabric producer recorded in the QR code 310 The origin information of the fabric produced by 110 and the origin information of the fabric processed by the fabric processing company 115 recorded in the QR code 320-1 are linked to the QR code 340-1, and the QR code 310 ), the origin information of the fabric produced by the fabric producer 110 recorded in the QR code 320-2 and the origin information of the fabric processed by the fabric processor 115 recorded in the QR code 320-2 are stored in the QR code 340-2. are linked

Therefore, the fabric produced by the producer 110 and the fabric processed by the fabric processor 115 are processed by the consumer simply by scanning the QR code 340-1 or QR code 340-2 attached or marked on the package of clothing. You can check the origin of the fabric.

The fact that the package of the fabric produced by the producer 110 and the package of the fabric processed by the fabric processing company 115 correspond to 1:n means that the fabric of one package of the fabric produced by the producer 110 is a fabric processing company (115) means that the processed fabric is produced with n packages. 5 shows a relationship between the package of the fabric produced by the producer 110 and the package of the fabric processed by the fabric processing company 115 in a 1:2 relationship, but the value of n is produced by the producer 110 It may vary depending on the number of packages of fabric processed by the fabric processing company 115 from one package of one fabric.

6 shows that the package of the fabric produced by the producer 110 corresponds to the package of the fabric processed by the fabric processing company 115 and n:1, and the package and the sewing company of the fabric processed by the fabric processing company 115 ( 135) shows the interlocking relationship when the package of clothes manufactured by 1:1 correspondence, the QR code 310-1 and the QR code 310-2 are linked to the QR code 320, and the QR code 320 ) is linked to the QR code 340, and finally, the origin information and QR code 320 of the fabric produced by the fabric producer 110 recorded in the QR code 310-1 and the QR code 310-2. The origin information of the fabric processed by the fabric processing company 115 recorded in is linked to the QR code 340 .

Accordingly, the consumer can check the origin of the fabric produced by the producer 110 and the fabric processed by the fabric processor 115 by simply scanning the QR code 340 attached or marked on the package of the clothing.

That the package of the fabric produced by the producer 110 and the package of the fabric processed by the fabric processing company 115 correspond to n:1 means that the package n of the fabric produced by the producer 110 is the fabric processing company. (115) means that it is produced in one package of the processed fabric. 6 shows a relationship between the package of the fabric produced by the producer 110 and the package of the fabric processed by the fabric processing company 115 in a 2:1 relationship, but the value of n is produced by the producer 110 It may vary depending on how many packages of one fabric are produced from one package of fabric processed by the fabric processing company 115 .

7 shows the package of the fabric produced by the producer 110 and the subsidiary material supplied by the subsidiary material producer 125, respectively, the package of the fabric processed by the fabric processing company 115, and the garment manufactured by the sewing company 135 Indicates the interlocking relationship in the case of 1:1 correspondence with the package of the QR code 310 and the QR code 330 are interlocked with the QR code 320 and the QR code 320 is interlocked with the QR code 340 , the origin information of the fabric produced by the fabric producer 110 finally recorded in the QR code 310, the origin information of the subsidiary material supplied by the subsidiary material producer 125, and the fabric processing recorded in the QR code 320 The origin information of the fabric processed by the company 115 is linked to the QR code 340 .

Therefore, by simply scanning the QR code 340 attached or marked on the package of clothing, the fabric produced by the producer 110, the subsidiary material supplied by the subsidiary material producer 125, and the fabric processing company 115 are You can check the origin of the processed fabric.

8 shows that the package of the fabric produced by the producer 110 and the package of the subsidiary material supplied by the subsidiary material producer 125 are respectively 1:n (n is a natural number) with the package of the fabric processed by the fabric processing company 115. and shows the interlocking relationship when the package of the fabric processed by the fabric processing company 115 and the package of the garment manufactured by the sewing company 135 correspond 1:1, and the QR code 310 and the QR code ( 330) is linked to the QR code 320-1 and the QR code 320-2, respectively, and the QR code 320-1 and the QR code 320-2 are respectively the QR code 340-1 and the QR code ( 340-2), the origin information of the fabric produced by the fabric producer 110 finally recorded in the QR code 310, and the subsidiary material supplied by the subsidiary material producer 125 recorded in the QR code 330 Origin information of and the origin information of the fabric processed by the fabric processing company 115 recorded in the QR code 320-1 are linked to the QR code 340-1, and the fabric production recorded in the QR code 310 The origin information of the fabric produced by the company 110, the origin information of the subsidiary material supplied by the subsidiary material producer 125 recorded in the QR code 330, and the fabric processing company 115 recorded in the QR code 320-2 ), the origin information of the processed fabric is linked to the QR code 340-2.

Therefore, by simply scanning the QR code 340-1 or QR code 340-2 attached or marked on the package of clothing, the fabric produced by the producer 110, the fabric produced by the producer 110, and the The origin of the subsidiary material and the fabric processed by the fabric processing company 115 can be confirmed.

9 shows that the package of the fabric produced by the producer 110 and the package of the subsidiary material supplied by the subsidiary material producer 125 correspond to the package of the fabric processed by the fabric processing company 115, respectively, in n:1, and fabric processing It shows the interlocking relationship when the package of the fabric processed by the company 115 and the package of the garment manufactured by the sewing company 135 correspond 1:1, QR code 310-1, QR code 310-2 ), the QR code 330-1, and the QR code 330-2 are linked to the QR code 320 and the QR code 320 is linked to the QR code 340, and finally the QR code 310-1 ) and the origin information of the fabric produced by the fabric producer 110 recorded in the QR code 310-2, and the subsidiary material producer 125 recorded in the QR code 330-1 and QR code 330-2 The origin information of the subsidiary material supplied by , and the origin information of the fabric processed by the fabric processing company 115 recorded in the QR code 320 are linked to the QR code 340 .

Therefore, by simply scanning the QR code 340 attached or marked on the package of clothing, the fabric produced by the producer 110, the subsidiary material supplied by the subsidiary material producer 125, and the fabric processing company 115 are You can check the origin of the processed fabric.

4 to 9 are the first QR code 310, which is the first QR code attached or marked by the fabric producer 110 on the package of the fabric, and the fabric processor 115 is attached or marked on the package of the fabric processed A second QR code, the QR code 320 , the third QR code 330 , which is attached or marked on the package of the subsidiary material produced by the subsidiary material producer 125 , and the garment manufactured by the sewing company 135 . Although the linkage relationship of the QR code 340, which is the fourth QR code attached or marked on the package of , has been described, the linkage relationship of 1:n may be an linkage relationship of n:1.

That is, the first identification code is linked to the second identification code by 1:n (n=1 to m, m is a natural number) or n:1 (n=1 to m, m is a natural number), and the second identification code is The fourth identification code may be linked to 1:n (n=1 to m, m is a natural number) or n:1 (n=1 to m, m is a natural number).

Similarly, the first identification code and the third identification code are linked to the second identification code in 1:n (n=1 to m, m is a natural number) or n:1 (n=1 to m, m is a natural number), respectively, and , the second identification code may be linked to the fourth identification code in a ratio of 1:n (n=1 to m, m is a natural number) or n:1 (n=1 to m, m is a natural number).

In addition, the first identification code is linked to the second identification code 1:n (n=1 to m, m is a natural number) or n:1 (n=1 to m, m is a natural number), and the second identification code and the second identification code 3 identification codes may be linked to the fourth identification code in a ratio of 1:n (n=1 to m, m is a natural number) or n:1 (n=1 to m, m is a natural number).

A blockchain system is a Distributed Ledger System that allows participating entities to store data in a secure and immutable manner. provide an environment in which

In at least one embodiment of the present invention, a tracking system is created for clothing and, if necessary, distributors and retailers are engaged in the tracking system. This will allow end users (consumers) to verify the origin of domestic products, with or without the involvement of upstream suppliers.

As described above, according to at least one embodiment of the present invention, for products manufactured from raw materials, intermediate products, and final products, the consumer can check the source from the raw material to the final product and check whether the product is genuine. A blockchain-based origin tracking method can be provided.

In the present specification, each embodiment is independently described, but each embodiment can be combined with each other, and the combined embodiment is also included in the scope of the present invention.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications are possible by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: Blockchain-based product origin tracking system
110: fabric producer
115: fabric processing company
120: fabric testing / inspection agency
125: subsidiary material producer
130: subsidiary material testing / inspection agency
135: sewing company
140: product certification body
145: Vendor
150: Registrar (or government agency)
155: logistics storage warehouse
160: consumer (end user)

Claims (7)

creating a smart contract by assigning a unique ID to each factory that produces raw materials, intermediate products, subsidiary materials, and final products;
updating the smart contract related to the raw material factory by identifying the origin-related information of the raw material and confirming local production;
updating the smart contract related to the intermediate product factory by identifying the origin-related information of the intermediate product and confirming the local production;
updating the smart contract related to the subsidiary material factory by identifying the origin-related information of the subsidiary material and confirming local production;
updating the smart contract related to the final product factory by identifying the origin-related information of the final product and confirming local production; and
publishing the smart contract on a site accessible via wireless communication by a consumer;
The smart contract is based on a blockchain, and the blockchain includes at least two or more of a raw material testing/inspection institution, an intermediate product testing/inspection institution, an auxiliary material testing/inspection institution, a product certification institution, and a government or registration institution as participants. doing,
A blockchain-based origin tracking method. According to claim 1,
attaching or marking a first identification code linked to the smart contract on a package of raw materials produced during the production of the raw materials;
attaching or marking a second identification code linked to the smart contract on the package of the intermediate product produced during the production of the intermediate product;
attaching or marking a third identification code linked to the smart contract on the package of the subsidiary material produced during the production of the subsidiary material; and
Attaching or marking the fourth identification code linked to the smart contract on the package of the final product produced during the production of the final product
further comprising,
A blockchain-based origin tracking method. 3. The method of claim 2,
The first identification code is linked to the second identification code in 1:n (n=1 to m, m is a natural number) or n:1,
The second identification code is linked to 1:n or n:1 to the fourth identification code,
A blockchain-based origin tracking method. 4. The method of claim 3,
The first identification code includes at least the origin information of the raw material,
the second identification code includes at least origin information of the intermediate product;
the fourth identification code includes at least country of origin information of the final product;
The second identification code is linked with at least the origin information of the first identification code,
The fourth identification code is at least linked with the origin information of the second identification code,
A blockchain-based origin tracking method. 3. The method of claim 2,
The first identification code and the third identification code are each linked to the second identification code in 1:n (n=1 to m, m is a natural number) or n:1,
The second identification code is linked to 1:n or n:1 to the fourth identification code,
A blockchain-based origin tracking method. 6. The method of claim 5,
The first identification code includes at least the origin information of the raw material,
the second identification code includes at least origin information of the intermediate product;
The third identification code includes at least the origin information of the subsidiary material,
the fourth identification code includes at least country of origin information of the final product;
The second identification code is linked with at least the origin information of the first identification code and the origin information of the third identification code,
The fourth identification code is at least linked with the origin information of the second identification code,
A blockchain-based origin tracking method. 6. The method of claim 5,
The first identification code includes at least the origin information of the raw material,
the second identification code includes at least origin information of the intermediate product;
The third identification code includes at least the origin information of the subsidiary material,
the fourth identification code includes at least country of origin information of the final product;
The second identification code is linked with at least the origin information of the first identification code,
The fourth identification code is linked with at least the origin information of the second identification code and the origin information of the third identification code,
A blockchain-based origin tracking method.

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