CN117808485A - Digital content entity purchasing system based on NFT - Google Patents

Digital content entity purchasing system based on NFT Download PDF

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Publication number
CN117808485A
CN117808485A CN202310608685.7A CN202310608685A CN117808485A CN 117808485 A CN117808485 A CN 117808485A CN 202310608685 A CN202310608685 A CN 202310608685A CN 117808485 A CN117808485 A CN 117808485A
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nft
identifier
work
verification
entity
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肖毅
吴相庆
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Dongguan Guanyun Information Technology Co ltd
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Dongguan Guanyun Information Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/018—Certifying business or products
    • G06Q30/0185—Product, service or business identity fraud
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401—Transaction verification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0641—Shopping interfaces
    • G06Q30/0643—Graphical representation of items or shoppers

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  • Entrepreneurship & Innovation (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention discloses a digital content physical purchasing system based on an NFT, and relates to the technical field of NFT digital content. The digital content real object purchasing system based on the NFT comprises an FT creating module, a commodity displaying module, a real object purchasing module and an authentication and verification module, wherein the digital works are converted into the NFT by combining the blockchain technology and the characteristics of the NFT, so that each work has uniqueness and irreplaceability, the NFT is associated with a real object commodity, after a user determines to purchase the NFT work, the user is allowed to exchange the NFT work into the corresponding real object, the purchaser can be ensured to obtain the real object commodity only by purchasing the NFT, the traceability and transparency of the transaction are provided by the system, the purchaser can verify the source and history of the commodity, the authenticity and the quality of the commodity are ensured, and the risks of fraud and fake commodities are reduced.

Description

Digital content entity purchasing system based on NFT
Technical Field
The invention relates to the technical field of NFT digital content, in particular to a digital content real object purchasing system based on NFT.
Background
The blockchain technology can provide ownership proof with Non-homogeneous tokens (NFT) as credential types for various digital assets such as digital content due to the characteristics of decentralization and tamper resistance, and store and distribute the digital assets in a distributed mode and the like, and meanwhile, the uniqueness of the digital assets is ensured to be tamper resistance. NFT can identify and manage digital content and other assets that exist only in digital space, and can also be associated with digitized versions of real world real-world items, and currently, there are a number of technologies that implement online digitizing of offline assets, i.e., showing offline asset ownership online.
Because the user is the NFT work obtained by the online platform during purchase, the physical objects are possibly inconsistent during receiving, and the purchaser is difficult to verify the source and the history of the goods, so that the authenticity and the quality of the physical objects are difficult to guarantee, and the risks of fraud and fake goods are increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a digital content real object purchasing system based on NFT, which solves the problems that because the NFT works obtained by an online platform are purchased by a user, the real objects are possibly inconsistent when the user receives goods, and the purchasers are difficult to verify the source and the history of goods, so that the authenticity and the quality of the real objects are difficult to guarantee, and the risks of fraud and fake goods are increased.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a digital content practicality purchasing system based on NFT, includes NFT creation module, commodity display module, practicality purchasing module and authentication and verification module, wherein: the NFT creation module is used for converting the digital works into NTF works, so that each work has uniqueness and irreplaceability; the commodity display module is used for displaying the converted NTF works on an online platform so as to be browsed and purchased by a user; the entity purchasing module is used for allowing a user to exchange the NFT work of the user into a corresponding entity when the user determines to purchase the NFT work; the authentication and verification module is used for verifying the authenticity and quality of the real object by a client when the real object is delivered.
Further, the NFT creation module includes an identifier generation unit and a metadata definition unit, and obtains the NFT by the following formula: nft= { nft_id, nft_metadata }; wherein: nft_id is a unique hash value that the identifier generation unit uses to transform the digital work into a unique hash value, nft_id=sha256; nft_metadata is information for describing and recording NFT works by a Metadata definition unit, the Metadata includes a unique NFT identifier, content, creator information, copyright information, and Creation Date nft_metadata= { Content, creator_info, copyright_info, creation_date }, where Content is Content, creator_info is Creator information, copyright_info is Copyright information, and creation_date is Creation Date.
Further, the specific step of the identifier generating unit processing the digital work to obtain the NFT identifier includes: s10, converting an image or video file into corresponding binary data by reading a byte stream of the file; s20, processing binary data by using a hash function to generate a unique hash value; s30, taking the hash value as an NFT identifier of the NFT work.
Further, the physical purchase module comprises an association unit, a payment unit and a link unit, wherein: the association unit is used for establishing an association relationship between the NFT work and the real object, and is realized by recording Description of the real object, purchase Link and commodity real object Image in Metadata, wherein NFT_metadata' = { NFT_ID, purchase_Link, product_description and product_image }, the NFT_ID is an NFT identifier, purchase_Link is a Purchase Link, the product_description is the Description of the real object, and the product_image is a commodity real object Image; the payment unit is used for charging fees to the user, wherein the fees comprise real prices, additional fees, transportation fees and insurance fees; the linking unit establishes a link between the NFT work and the entity on the blockchain by using an intelligent contract, and is used for associating the NFT identifier of the NFT work with the entity identifier of the entity, and the formula is as follows: link_NFT (item_ID, NFT_ID), where item_ID is the entity identifier and NFT_ID is the NFT identifier, ensuring the connection between the NFT work and the entity, ensuring that the relationship between the NFT work and the entity is verified and tracked.
Further, the specific steps of the linking unit using the intelligent contract to establish the link between the NFT work and the physical object on the blockchain are as follows: s11, generating a unique entity identifier for the entity, wherein the unique entity identifier is used for associating and verifying the NFT work; s21, adding a description and a physical identifier of a physical object into metadata; s31, linking the NFT work and the entity, and defining a linking function in the intelligent contract, wherein parameters of the linking function comprise an NFT identifier and an entity identifier so as to ensure correct association; s41, when a buyer purchases the NFT work and selects to purchase the associated real object, executing a linking operation, calling a linking function in the intelligent contract, transferring the NFT identifier and the real object identifier as parameters, and associating the NFT work with the real object; s51, a verification mechanism is realized in the intelligent contract, so that the link between the NFT work and the entity is ensured to be effective and verifiable, and the association relationship and ownership transfer record between the NFT work and the entity are verified.
Further, the step of linking the NFT work with the real object in S31 specifically includes the following steps: s311, inputting parameters, namely an NFT identifier and a physical identifier, for establishing association between the NFT and the physical; s312, after the validity of the NFT identifier and the physical identifier, recording the corresponding relation between the NFT identifier and the physical identifier in the storage of the intelligent contract; s313, after the execution of the linking function is completed, the link between the NFT and the entity can be recorded by triggering an event recording operation.
Further, the physical object purchasing module further comprises a logistics tracking and notifying unit, wherein the logistics tracking and notifying unit is used for enabling a buyer and a seller to track the transportation progress of the physical object in real time, sending notification of logistics update and transportation state to the buyer and the seller, and ensuring that both parties know the transportation progress of the physical object.
Further, the authentication and verification module comprises an authentication unit, a recording unit and a verification unit, wherein: the authentication unit is used for executing an authentication program and automatically authenticating by comparing the characteristics of the object, the fingerprint and the certificate information with verification data recorded in the blockchain; the recording unit is used for recording the authentication result in the intelligent contract of the blockchain, so as to ensure that the authentication process and result cannot be tampered; the verification unit is used for inquiring and verifying the authentication result of the real object by using the verification function in the intelligent contract, and ensuring that the authentication and verification result of the real object are consistent with the record on the blockchain.
Further, the specific process of verification using the verification function in the verification unit is as follows: s11, receiving an NFT identifier as an input parameter; s12, inquiring authentication records and verification information associated with the NFT in the intelligent contract according to the input NFT identifier; s13, acquiring data related to the verification of the real object from the authentication record; s14, verifying the acquired data by applying a verification rule and a formula according to the service requirements and the rules; s15, determining whether the authenticity and the integrity of the real object pass the verification according to the result of the verification rule; s16, representing the verification result as a Boolean value as a return value of the verification function.
Further, the NFT-based digital content physical purchase system further includes an ownership transfer for confirming the transfer of ownership by the intelligent contract on the blockchain after the user purchases and redeems the NTF work for physical.
The invention has the following beneficial effects:
(1) According to the NFT-based digital content real object purchasing system, digital works are converted into NFT through combining the blockchain technology and the characteristics of the NFT, so that each work is unique and non-replaceable, the NFT is associated with real objects, after a user determines to purchase the NFT work, the user is allowed to exchange the NFT work into the corresponding real object, the fact that a purchaser can only obtain the real objects through purchasing the NFT can be ensured, the transaction and ownership transfer are recorded on the blockchain, traceability and transparency of the transaction are provided by the system, the purchaser can verify the source and history of the goods, authenticity and quality of the goods are ensured, and risks of fraud and fake commodities are reduced.
(2) According to the NFT-based digital content physical purchasing system, by converting a digital work into an NFT and associating the NFT with a physical commodity, a purchaser can be ensured to obtain the physical commodity only by purchasing the NFT, and transaction and ownership transfer are recorded on a blockchain, so that the traceability and transparency of the transaction are provided.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
FIG. 1 is a block diagram of an NFT-based digital content physical purchasing system of the present invention;
FIG. 2 is a block diagram of an NFT creation module of the NFT-based digital content physical purchasing system of the present invention;
FIG. 3 is a flow chart of a method for obtaining NFT identifiers for the NFT-based digital content entity purchasing system of the present invention;
FIG. 4 is a block diagram of a physical purchase module of the NFT-based digital content physical purchase system of the present invention;
FIG. 5 is a flow chart of a method of establishing a link between an NFT work and a physical object of the NFT-based digital content physical object purchasing system of the present invention;
FIG. 6 is a flow chart of a method of linking an NFT work with a physical object of the present invention for an NFT-based digital content physical object purchasing system;
FIG. 7 is a block diagram of an authentication and verification module of the NFT-based digital content entity purchase system of the present invention;
fig. 8 is a flowchart of a verification unit verification method of the NFT-based digital content physical purchase system of the present invention.
Detailed Description
For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
The technical scheme in this application embodiment is for solving the engineering construction progress management system among the prior art and is difficult to the problem to individual in order to improve the construction progress, and the overall thinking is as follows:
the digital works are converted into the NFT by combining the blockchain technology and the characteristics of the NFT, so that each work has uniqueness and irreplaceability, the NFT is associated with a commodity, the converted NTF works are displayed on an online platform for browsing and purchasing by a user, after the user determines to purchase the NFT works, the user is allowed to exchange the NFT works into corresponding objects, the fact that a purchaser can only obtain the commodity by purchasing the NFT can be ensured, the traceability and transparency of the transaction are provided by recording the transaction and ownership transfer on the blockchain, the purchaser can verify the source and history of the commodity, the authenticity and quality of the commodity are ensured, and the risk of fraud and counterfeit commodities is reduced.
Among other things, blockchain technology is non-tamper-resistant and transparent, and blockchain uses cryptographic techniques to ensure the security and integrity of data. Once data is added to the blockchain, it is difficult to tamper with or delete. Each block contains the hash value of the previous block, forming a chain linked by blocks so that any tampering is perceived by other nodes, the transaction and data is publicly visible, and any person can view and verify. This transparency helps to increase trust and reduce fraud while blockchain technology allows participants to conduct transactions and collaborations without trust of each other through the application of consensus mechanisms and cryptography. Blockchains provide a reliable mechanism so that the credibility of the transaction is independent of intervention by intermediaries or third parties. Each NFT has unique identifiers and attributes that distinguish it from other NFTs in value and characteristics, and NFTs use blockchain technology to record and verify ownership of digital assets. Each NFT has a non-tamperable billing record detailing its historical transaction and owner information. This allows the ownership of the NFT to be accurately traced and verified, enhancing the authenticity of the digital asset and the provability of ownership.
Referring to fig. 1, the embodiment of the invention provides a technical scheme: the utility model provides a digital content practicality purchasing system based on NFT, includes NFT creation module, commodity display module, practicality purchasing module and authentication and verification module, wherein: the NFT creation module is used for converting the digital works into NTF works, so that each work has uniqueness and irreplaceability; the commodity display module is used for displaying the converted NTF works on an online platform so as to be browsed and purchased by a user; the entity purchasing module is used for allowing the user to exchange the NFT work into a corresponding entity when the user determines to purchase the NFT work; and the authentication and verification module is used for verifying the authenticity and quality of the real object by the client when the real object is delivered.
Specifically, the NFT creation module includes an identifier generation unit and a metadata definition unit, and obtains the NFT by the following formula: nft= { nft_id, nft_metadata }; wherein: nft_id is a unique hash value that the identifier generation unit uses to transform the digital work into a unique hash value, nft_id=sha256; nft_metadata is information used by the Metadata definition unit to describe and record an NFT work, the Metadata includes a unique NFT identifier, content, creator information, copyright information, and Creation Date, nft_metadata= { Content, creator_info, copyright_info, creation_date }, where Content is Content, creator_info is Creator information, copyright_info is Copyright information, and creation_date is Creation Date.
In this embodiment, as shown in fig. 2, the NFT creation module includes an identifier generation unit and a metadata definition unit, and converts its digital work into an NFT work, and the identifier generation unit converts the digital work into a unique hash value using a hash function, which may be SHA-256, which is a commonly used cryptographic hash function that converts input data into a 256-bit (32-byte) hash value, in which case, binary data is converted into a 256-bit hash value using SHA-256 algorithm and is recorded as an NFT identifier of the NFT work as nft_id=sha256.
The Metadata definition unit is used for describing and recording information of the NFT work, and the Metadata includes an NFT identifier, content, creator information, copyright information, creation Date and the like, and is denoted as nft_metadata= { Content, creator_info, copy_info, creation_date }.
The purpose of the metadata is to provide descriptions and information about specific data to aid in understanding, managing and using such data, and to provide detailed descriptions of NFT works, including characteristics, content and attributes of the works, so that users are aware of the subject matter, style, technology, etc. of the works, helping administrators and platforms maintain and organize a large number of NFT works. Through metadata, classification, marking, searching and screening can be performed, so that a user can more easily find interesting works, information of an creator, date of creation and the like, and the information can be used for verifying the authenticity, source and history of the works.
Specifically, as shown in fig. 3, the specific steps of the identifier generating unit for processing the digital work to obtain the NFT identifier include: s10, converting an image or video file into corresponding binary data by reading a byte stream of the file; s20, processing binary data by using a hash function to generate a unique hash value; s30, taking the hash value as an NFT identifier of the NFT work.
In this embodiment, an image or video is converted into binary data: the image or video file is converted into corresponding binary data. This may be accomplished by reading a byte stream of the file, and processing the binary data using a hash function to generate a unique hash value. Common hash functions include SHA-256 and MD5, with the hash value as the identifier of the NFT. Typically, hash values are represented as hexadecimal or Base64 coded strings for better presentation and use.
Specifically, as shown in fig. 4, the physical purchase module includes an association unit, a payment unit, and a link unit, wherein: the association unit is used for establishing an association relationship between the NFT work and the real object, and is realized by recording Description of the real object, purchase Link and commodity real object Image in Metadata, wherein NFT_metadata' = { NFT_ID, purchase_Link, product_description and product_image }, the NFT_ID is an NFT identifier, purchase_Link is a Purchase Link, the product_description is the Description of the real object, and the product_image is a commodity real object Image; a payment unit for charging the user with fees including physical prices, additional fees, transportation fees and insurance fees; a linking unit, which establishes a link between the NFT work and the entity on the blockchain by using the intelligent contract, and is used for associating the NFT identifier of the NFT work with the entity identifier of the entity, and the formula is as follows: link_NFT (item_ID, NFT_ID), where item_ID is the entity identifier and NFT_ID is the NFT identifier, ensuring the connection between the NFT work and the entity, ensuring that the relationship between the NFT work and the entity is verified and tracked.
In this embodiment, information related to a real object, such as a Purchase Link, a Product Description, a commodity picture, etc., is added to Metadata of the NFT, and is denoted as nft_metadata' = { nft_id, product_link, product_description, product_image }, where nft_id is an NFT identifier, product_link is a Purchase Link, product_description is a Description of the real object, and product_image is a commodity real object Image. This information will be presented to the user in a purchase page, who may choose to purchase the physical object when the user decides to purchase a NFT work, by clicking on an associated button or link, the user may see the price associated with the physical object, and select an appropriate payment means, such as a credit card or other electronic payment means.
The intelligent contract technology is used for associating the NFT with the entity, and is marked as Link_NFT (Item_ID, NFT_ID), wherein the Item_ID is an entity identifier, the NFT_ID is an NFT identifier, connection between the NFT work and the entity is ensured, and the relationship between the NFT work and the entity is verified and tracked. The contract can record the address, purchasing time, transaction detailed information and the like of the purchaser, ensure that the information is permanently stored and traced on the blockchain, and ensure the uniqueness and anti-counterfeiting performance of the entity by binding the entity with the NFT. In the metadata of the NFT, a unique identifier of the physical object, a verification mechanism, or other information may be included to ensure the authenticity of the physical object.
Specifically, as shown in fig. 5, the specific steps of the linking unit for establishing the link between the NFT work and the physical object on the blockchain using the smart contract are: s11, generating a unique entity identifier for the entity, wherein the unique entity identifier is used for associating and verifying the NFT work; s21, adding a description and a physical identifier of a physical object into metadata; s31, linking the NFT work and the entity, and defining a linking function in the intelligent contract, wherein the parameters of the linking function comprise an NFT identifier and an entity identifier so as to ensure correct association; s41, when a buyer purchases the NFT work and selects to purchase the associated real object, executing a linking operation, calling a linking function in the intelligent contract, transferring the NFT identifier and the real object identifier as parameters, and associating the NFT work with the real object; s51, a verification mechanism is realized in the intelligent contract, so that the link between the NFT work and the entity is ensured to be effective and verifiable, and the association relationship and ownership transfer record between the NFT work and the entity are verified.
In this embodiment, a smart contract is created that ensures that the smart contract has the necessary functions, such as recording information associated with the NFT and the physical object, verifying ownership transfer, etc., and generating a unique identifier for the physical object, which may be a unique serial number, commodity number, or other type of identifier, that will be used to associate and verify with the NFT work.
And including descriptions about the physical object, the physical object identifier, and other relevant information in the NFT metadata, defining a function or method in the smart contract for linking the NFT with the physical object, where parameters of the function may include the NFT identifier and the physical object identifier to ensure proper association, and performing a linking operation when the buyer purchases the NFT work and selects to purchase the associated physical object, that is, calling the linking function in the smart contract, transferring the NFT identifier and the physical object identifier as parameters, and associating the NFT with the physical object.
The verification mechanism is implemented in the intelligent contract, so that the link between the NFT and the entity is ensured to be effective and verifiable, and the association relationship and ownership transfer record between the NFT and the entity can be verified by inquiring the related function of the intelligent contract.
Through the steps, the link and the association between the NFT work and the real object can be established on the blockchain, so that a buyer can purchase the real object associated with the NFT work, and the authenticity and the association relationship of the NFT work can be verified through the intelligent contract.
Specifically, as shown in fig. 6, linking the NFT work with the real object in S31 specifically includes the following steps: s311, inputting parameters, namely an NFT identifier and a physical identifier, for establishing association between the NFT and the physical; s312, after the validity of the NFT identifier and the physical identifier, recording the corresponding relation between the NFT identifier and the physical identifier in the storage of the intelligent contract; s313, after the execution of the linking function is completed, the link between the NFT and the entity can be recorded by triggering an event recording operation.
In this embodiment, the function should accept input parameters, including NFT identifiers and physical identifiers. These parameters will be used to establish an association between the NFT and the physical object and the function should contain logic and code to associate the NFT identifier with the physical object identifier. This can be achieved by recording the correspondence between NFT identifiers and physical identifiers in the storage of the smart contracts, and in the link logic, a verification mechanism can be added to ensure the validity and security of the link. For example, check if NFT and physical identifier are valid, verify ownership transfer, etc.
The function may be named "linkntwithitem" for linking NFT and real object, the syntax of the function declaration differs according to the programming language of the smart contract, and the two input parameters are NFT identifier (nftId) and real object identifier (itemId), respectively, to be input as a function to establish an association between NFT and real object.
Verifying nftId and itemId in functions to ensure their validity and trustworthiness may include checking the presence, format, or other necessary verification logic of the identifier. After verifying the validity of the identifier, associating the nftId with the itemId, and establishing the association between the NFT and the corresponding entity may be implemented by recording the correspondence between the NFT identifier and the entity identifier in a storage of the smart contract, which may be by using mapping (mapping) or other suitable data structures.
Verifying whether the ownership transfer is legal or other necessary security checks, after the function execution is completed, the link between the NFT and the entity can be recorded by triggering an event or performing other recording operations, which can help track and record the history of the link for subsequent query and verification.
Specifically, the physical object purchasing module further comprises a logistics tracking and notifying unit, wherein the logistics tracking and notifying unit is used for enabling a buyer and a seller to track the transportation progress of the physical object in real time, sending notification of logistics update and transportation state to the buyer and the seller, and ensuring that both sides know the transportation progress of the physical object.
In this embodiment, the creator may choose to display their NFT work on an online platform or via a personal website, social media, etc., and provide the option to purchase the physical object. The display platform should provide user-friendly interfaces, search and filter functions to facilitate the user's browsing and discovery of works of interest, and the user may choose to purchase NFT works on the display platform and have an opportunity to purchase the real objects associated with the works. They can browse the information of the description, price and purchasing link, etc. of the real object, and make purchasing operation, and after the purchasing operation is successful, the processes of packaging, insurance, transportation and delivery of the real object are processed. The buyer can track the transportation state of the real object and check and confirm the real object after the real object arrives.
Specifically, as shown in fig. 7, the authentication and verification module includes an authentication unit, a recording unit, and a verification unit, wherein: the authentication unit is used for executing an authentication program and automatically authenticating the fingerprint and certificate information and verification data recorded in the blockchain by comparing the characteristics of the real object; the recording unit is used for recording the authentication result in the intelligent contract of the blockchain, so as to ensure that the authentication process and result cannot be tampered; and the verification unit is used for inquiring and verifying the authentication result of the real object by using the verification function in the intelligent contract, and ensuring that the authentication and verification result of the real object are consistent with the record on the blockchain.
In this embodiment, according to the characteristics and value of the real object, a corresponding authentication procedure is formulated to ensure the authenticity and quality of the real object, and the result of the authentication process and related information, including the authentication expert, the timestamp, the authentication result, etc., are recorded in the intelligent contract. The detailed information of the physical verification is recorded in the intelligent contract, including authentication record, certificate information, serial number and other relevant verification information.
Specifically, as shown in fig. 8, the specific procedure of verification using the verification function in the verification unit is as follows: s11, receiving an NFT identifier as an input parameter; s12, inquiring authentication records and verification information associated with the NFT in the intelligent contract according to the input NFT identifier; s13, acquiring data related to the verification of the real object from the authentication record; s14, verifying the acquired data by applying a verification rule and a formula according to the service requirements and the rules; s15, determining whether the authenticity and the integrity of the real object pass the verification according to the result of the verification rule; s16, representing the verification result as a Boolean value as a return value of the verification function.
In this embodiment, the verification function receives an NFT identifier as an input parameter, queries an authentication record and verification information associated with the NFT in an intelligent contract according to the input NFT identifier, obtains data related to the verification of a real object, such as an authentication result, certificate information, verification conditions, and the like, verifies the obtained data according to service requirements and rules by applying related verification rules and formulas, determines whether the authenticity and integrity of the real object pass the verification according to the result of the verification rules, and represents the verification result as a boolean value (true or false) as a return value of the verification function.
In the verification process, the verification function queries and verifies the authentication result of the entity by combining the defined verification rule and formula through the authentication record and related information stored in the intelligent contract. The return value of the verification function indicates the verification result of the object, i.e. whether the verification passed or failed. In this way, the authenticity and integrity of the physical object can be checked by invoking a validation function and ensuring that it is consistent with the validation information recorded on the blockchain.
Specifically, the NFT-based digital content physical purchase system further includes an ownership transfer for confirming the transfer of ownership by the intelligent contract on the blockchain after the user purchases and redeems the NTF work as a physical.
In this embodiment, in the smart contract, the ownership transfer operation is performed to transfer the ownership of the NFT from the seller to the buyer, and after receiving the physical object, the buyer confirms that the ownership has been completely transferred to his own name. Details of the transfer of physical ownership, including buyer, seller, time stamp, transaction amount, etc., are recorded in the smart contract.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. The utility model provides a digital content practicality purchasing system based on NFT which characterized in that includes NFT creation module, commodity display module, practicality purchasing module and authentication and verification module, wherein:
the NFT creation module is used for converting the digital works into NTF works, so that each work has uniqueness and irreplaceability;
the commodity display module is used for displaying the converted NTF works on an online platform so as to be browsed and purchased by a user;
the entity purchasing module is used for allowing a user to exchange the NFT work of the user into a corresponding entity when the user determines to purchase the NFT work;
the authentication and verification module is used for verifying the authenticity and quality of the real object by a client when the real object is delivered.
2. The NFT-based digital content object purchase system of claim 1, wherein: the NFT creation module includes an identifier generation unit and a metadata definition unit, and obtains the NFT by the following formula:
NFT={NFT_ID, NFT_Metadata}；
wherein: nft_id is a unique hash value that the identifier generation unit uses to transform the digital work into a unique hash value, nft_id=sha256;
nft_metadata is information for describing and recording NFT works by a Metadata definition unit, the Metadata includes a unique NFT identifier, content, creator information, copyright information, and Creation Date nft_metadata= { Content, creator_info, copyright_info, creation_date }, where Content is Content, creator_info is Creator information, copyright_info is Copyright information, and creation_date is Creation Date.
3. The NFT-based digital content object purchase system of claim 2, wherein: the specific steps of the identifier generating unit for processing the digital work to obtain the NFT identifier include:
s10, converting an image or video file into corresponding binary data by reading a byte stream of the file;
s20, processing binary data by using a hash function to generate a unique hash value;
s30, taking the hash value as an NFT identifier of the NFT work.
4. The NFT-based digital content object purchase system of claim 2, wherein: the entity purchase module comprises an association unit, a payment unit and a link unit, wherein:
the association unit is used for establishing an association relationship between the NFT work and the real object, and is realized by recording Description of the real object, purchase Link and commodity real object Image in Metadata, wherein NFT_metadata' = { NFT_ID, purchase_Link, product_description and product_image }, the NFT_ID is an NFT identifier, purchase_Link is a Purchase Link, the product_description is the Description of the real object, and the product_image is a commodity real object Image;
the payment unit is used for charging fees to the user, wherein the fees comprise real prices, additional fees, transportation fees and insurance fees;
the linking unit establishes a link between the NFT work and the entity on the blockchain by using an intelligent contract, and is used for associating the NFT identifier of the NFT work with the entity identifier of the entity, and the formula is as follows:
Link_NFT(Item_ID, NFT_ID)，
wherein item_id is an entity identifier and nft_id is an NFT identifier, ensuring connection between the NFT work and the entity, ensuring that the relationship between the NFT work and the entity is verified and tracked.
5. The NFT-based digital content object purchase system of claim 4, wherein: the specific steps of the linking unit for establishing the link between the NFT work and the entity on the blockchain by using the intelligent contract are as follows:
s11, generating a unique entity identifier for the entity, wherein the unique entity identifier is used for associating and verifying the NFT work;
s21, adding a description and a physical identifier of a physical object into metadata;
s31, linking the NFT work and the entity, and defining a linking function in the intelligent contract, wherein parameters of the linking function comprise an NFT identifier and an entity identifier so as to ensure correct association;
s41, when a buyer purchases the NFT work and selects to purchase the associated real object, executing a linking operation, calling a linking function in the intelligent contract, transferring the NFT identifier and the real object identifier as parameters, and associating the NFT work with the real object;
s51, a verification mechanism is realized in the intelligent contract, so that the link between the NFT work and the entity is ensured to be effective and verifiable, and the association relationship and ownership transfer record between the NFT work and the entity are verified.
6. The NFT-based digital content object purchase system of claim 5, wherein: in S31, linking the NFT work with the real object specifically includes the following steps:
s311, inputting parameters, namely an NFT identifier and a physical identifier, for establishing association between the NFT and the physical;
s312, after the validity of the NFT identifier and the physical identifier, recording the corresponding relation between the NFT identifier and the physical identifier in the storage of the intelligent contract;
s313, after the execution of the linking function is completed, the link between the NFT and the entity can be recorded by triggering an event recording operation.
7. The NFT-based digital content object purchase system of claim 4, wherein: the physical object purchasing module further comprises a physical object tracking and notifying unit, wherein the physical object tracking and notifying unit is used for enabling a buyer and a seller to track the transportation progress of the physical object in real time, sending notification of physical object updating and transportation state to the buyer and the seller, and ensuring that both sides know the transportation progress of the physical object.
8. The NFT-based digital content object purchase system of claim 5, wherein: the authentication and verification module comprises an authentication unit, a recording unit and a verification unit, wherein:
the authentication unit is used for executing an authentication program and automatically authenticating by comparing the characteristics of the object, the fingerprint and the certificate information with verification data recorded in the blockchain;
the recording unit is used for recording the authentication result in the intelligent contract of the blockchain, so as to ensure that the authentication process and result cannot be tampered;
the verification unit is used for inquiring and verifying the authentication result of the real object by using the verification function in the intelligent contract, and ensuring that the authentication and verification result of the real object are consistent with the record on the blockchain.
9. The NFT-based digital content object purchase system of claim 8, wherein: the specific process of verification by using the verification function in the verification unit is as follows:
s11, receiving an NFT identifier as an input parameter;
s12, inquiring authentication records and verification information associated with the NFT in the intelligent contract according to the input NFT identifier;
s13, acquiring data related to the verification of the real object from the authentication record;
s14, verifying the acquired data by applying a verification rule and a formula according to the service requirements and the rules;
s15, determining whether the authenticity and the integrity of the real object pass the verification according to the result of the verification rule;
s16, representing the verification result as a Boolean value as a return value of the verification function.
10. The NFT-based digital content object purchase system of claim 9, wherein: the NFT-based digital content physical purchase system further includes an ownership transfer for confirming transfer of ownership by an intelligent contract on the blockchain after a user purchases and redeems the NTF work for physical.
CN202310608685.7A 2023-05-28 2023-05-28 Digital content entity purchasing system based on NFT Pending CN117808485A (en)

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