Hash encryption and smart contract-based culture digital asset high-efficiency right confirmation method

Abstract

The invention discloses a high-efficiency cultural digital asset right confirmation method based on Hash encryption and an intelligent contract, which belongs to the technical field of digital asset right confirmation and comprises the following steps: S1, Hash value generation and ownership binding, S2, chain right confirmation registration and certificate generation, S3, alliance chain intelligent contract transaction execution, S4, automatic infringement monitoring and responsibility investigation execution, and S5, intelligent contract transaction execution. S5, cross-chain Hash mapping and universal identification generation are carried out; through deep combination of Hash encryption and a block chain distributed account book, unique binding of core features and ownership information of cultural digital assets is realized, on-chain right confirmation registration can be completed within 5-10 minutes, efficiency is improved by more than hundreds of times compared with a traditional process, a right confirmation certificate can be inquired in real time and cannot be tampered, and user experience is improved. The problems of long time consumption and fuzzy ownership of traditional right confirmation are thoroughly solved.

Description

Technical Field

[0001] This invention relates to the field of digital asset ownership verification technology, and more specifically, to an efficient method for verifying ownership of cultural digital assets based on hash encryption and smart contracts. Background Technology

[0002] Cultural digital assets refer to assets that are transformed into storable and disseminated assets in cyberspace through digital technology, possessing both cultural and economic value. Their core characteristics include the convenience, replicability, and variability of digital storage, as well as the impact of scarcity on value. The confirmation of ownership of these assets can guarantee their uniqueness and immutability.

[0003] The prior art patent document with authorization announcement number CN116308903A discloses "a method for confirming and protecting digital assets based on blockchain", which includes the following steps: the blockchain stores the rights allocation information pre-agreed by at least two rights holders; when a digital asset uploaded by a rights holder is received, the rights of the digital asset are allocated to form asset rights allocation data; a multi-party signature certificate is generated based on the asset rights allocation data and the corresponding timestamp and stored on the blockchain; when a preset processing action is received for the digital asset, the rights holder corresponding to the scope of the rights involved in the preset processing action is reminded to obtain the authorization of the rights holder.

[0004] The patent document with authorization announcement number CN120196652A discloses a "method and system for processing digital assets based on metaverse cultural products", which includes the following steps: creating digital assets corresponding to cultural products; performing ownership confirmation and authentication processing on digital assets; assessing the value of the confirmed digital assets; effectively storing and managing digital assets; and managing the actual transaction process of digital assets. This invention facilitates the transmission and storage of digital assets by converting the created digital assets into a format suitable for storage and transmission on the metaverse platform, and uses data compression technology to reduce the size of digital assets and improve transmission efficiency.

[0005] While existing technologies utilize blockchain to establish and manage digital assets, thus standardizing transaction processes to some extent and attempting to protect digital assets through technical or legal means, and improving efficiency in the creation, storage, and transmission of digital assets, current technologies suffer from several drawbacks. First, they rely on pre-agreed rights allocation information for ownership confirmation, failing to uniquely encrypt and identify the digital assets themselves. This leads to a disconnect between rights and the actual assets. Second, transactions require manual authorization from the rights holder, lacking proactive infringement monitoring mechanisms and resulting in a passive dispute resolution process. Third, the unique identifier for ownership confirmation is not deeply integrated with the core characteristics of the asset, resulting in weak proof. Transactions are restricted by platform barriers, requiring repeated ownership confirmation. Fourth, infringement protection lacks automatic penalty mechanisms, relying on manual intervention for rights protection. Fifth, while achieving efficient ownership confirmation, automated transactions, and accountability, there are still shortcomings in the details of hash mapping mechanisms for cross-platform circulation and the flexibility of rights allocation for assets shared by multiple parties. Overall, these technologies suffer from insufficient uniqueness in ownership confirmation, low transaction efficiency and interoperability, and passive infringement handling. Summary of the Invention

[0006] This invention provides an efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts, which can solve the problems mentioned in the background.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts, comprising:

[0008] S1. Extract the core features of cultural digital assets, generate a unique hash value through a hash algorithm, and bind the hash value with the ownership information of the creator, creation time, and scope of authorization to form an immutable ownership data package.

[0009] S2. Write the ownership data package into the blockchain distributed ledger. The smart contract automatically executes the notarization process, completes the on-chain registration within 5-10 minutes, and generates an ownership certificate containing a hash value. This certificate can be queried in real time through a blockchain explorer.

[0010] S3. Based on the consortium blockchain architecture, transaction rules are preset in the smart contract. When a user initiates a transaction request, the smart contract automatically verifies the buyer's account balance and the seller's ownership hash, and completes the transfer and asset delivery within 1-2 minutes. The entire transaction is traceable on the blockchain.

[0011] S4: Smart contracts combine digital fingerprint technology to regularly scan all digital assets on the network. The scanned asset information is compared with the hash information of the confirmed rights on the chain. If infringement is found, the infringing account is immediately frozen, the deposit is deducted, and the infringement information is made public, so as to realize automatic accountability for infringement.

[0012] S5. Design a cross-chain hash mapping mechanism to generate cross-platform universal asset identifiers through smart contracts to solve the problem of repeated confirmation of rights for asset delivery between different platforms.

[0013] Furthermore, in S1, the core features of cultural digital assets include the geometric vertex coordinates and texture map pixel matrix of the virtual ancient building model, the brushstroke trajectory and color channel values ​​of the digital artwork. At the same time, the hash algorithm adopts the SHA-3 algorithm, and the generated hash value is 256 bits long. It is also bound to the ownership information through an asymmetric encryption algorithm to ensure that the ownership data packet can be directly identified through hash value verification after being tampered with.

[0014] Furthermore, in S2, the blockchain distributed ledger adopts a multi-node consensus mechanism, with each node storing a complete copy of the ownership data package. When the smart contract executes the notarization process, it needs to obtain consensus verification from the nodes to complete the on-chain registration. At the same time, the ownership certificate includes a hash value visualization QR code, an on-chain notarization timestamp, and node signature information. When queried through a blockchain explorer, the complete verification path of the ownership data package can be displayed synchronously.

[0015] Furthermore, in the S3, the consortium blockchain architecture includes three types of nodes: cultural institutions, copyright management departments, and trading platforms. The smart contract's preset transaction rules include pricing methods, authorization periods, and profit-sharing ratios. At the same time, during transaction verification, in addition to verifying the buyer's balance and the seller's ownership hash, it is also necessary to verify the buyer's account's KYC authentication status. Accounts that have not passed authentication cannot initiate transactions.

[0016] Furthermore, in S4, the digital fingerprint technology breaks down the on-chain hash value into 1024 feature fragments, scans once per hour, and covers mainstream digital asset trading platforms, social media, and cloud storage services. At the same time, a fuzzy matching algorithm is used for comparison. When the similarity exceeds 95% and no authorization is obtained, it is determined to be an infringement. The frozen infringing account must complete the deletion of infringing assets and the replenishment of the margin before the smart contract will automatically unfreeze it.

[0017] Furthermore, in S5, the cross-chain hash mapping mechanism generates a cross-platform identifier through hash value desensitization processing. When generating the cross-platform identifier, the smart contract synchronously records the mapping relationship between the original chain hash value and the cross-chain identifier and stores it on the chain. Different platforms can verify the correlation between the cross-platform identifier and the original chain hash value by calling the cross-chain query contract, without having to repeat the rights confirmation process.

[0018] Furthermore, the blockchain adopts a hybrid architecture of private and consortium blockchains. The core information of the ownership data package is stored on the consortium blockchain, while the original asset files are compressed and encrypted and stored on the private blockchain. The private and consortium blockchains are linked and verified through smart contracts, which ensures that the core information is publicly available and verifiable, while also protecting the privacy of the original asset data.

[0019] The beneficial effects of this invention, a method for efficient ownership confirmation of cultural digital assets based on hash encryption and smart contracts, are as follows:

[0020] By deeply integrating hash encryption with blockchain distributed ledger, the core characteristics and ownership information of cultural digital assets are uniquely bound together. On-chain registration of ownership can be completed within 5-10 minutes, improving efficiency by more than 100 times compared to traditional processes. Moreover, the ownership certificate can be queried in real time and is tamper-proof, completely solving the problems of long processing time and ambiguous ownership in traditional ownership confirmation. At the same time, smart contracts under the consortium blockchain architecture automatically execute transaction verification and settlement, completing asset transfer within 1-2 minutes. The entire process is traceable, effectively avoiding the risks of opaque operations on centralized platforms and significantly improving transaction transparency and security.

[0021] By combining digital fingerprint technology with smart contracts, a closed loop for automatic infringement monitoring and accountability has been constructed. It regularly scans all assets on the network and compares them with on-chain hash information. Once infringement is detected, the account is immediately frozen and the deposit is deducted, keeping the dispute rate at an extremely low level. This solves the pain point of traditional rights protection relying on manual evidence collection and being inefficient. The cross-chain hash mapping mechanism breaks down platform barriers, generates universal asset identifiers across platforms, avoids duplicate rights confirmation, significantly improves the cross-scenario circulation efficiency of cultural digital assets, and further enhances the practicality and universality of the rights confirmation system. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a schematic diagram of the process of an efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts, according to the present invention. Detailed Implementation

[0024] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1 As shown, a technical solution is provided: an efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts, comprising:

[0027] Step 1: Hash value generation and ownership binding

[0028] Extract the core features of cultural digital assets, generate a unique hash value through a hash algorithm, and bind the hash value with the creator information, creation time, and ownership information of the scope of authorization to form an immutable ownership data package.

[0029] Specifically, the core features of cultural digital assets include the geometric vertex coordinates and texture map pixel matrix of virtual ancient building models, the brush stroke trajectory and color channel values ​​of digital artworks. At the same time, the hash algorithm adopts the SHA-3 algorithm, the generated hash value is 256 bits long, and it is bound to the ownership information through an asymmetric encryption algorithm to ensure that the ownership data package can be directly identified through hash value verification after being tampered with.

[0030] During the asymmetric encryption algorithm binding process, the creator needs to use their personal private key to sign the ownership information. The generated signature and hash value together constitute the core field of the ownership data packet. Other users can verify the validity of the signature through the creator's public key to ensure that the ownership information has not been forged.

[0031] In addition, when generating hash values, the system automatically collects the creation timestamp of the asset (accurate to milliseconds) and incorporates it into the hash calculation, ensuring that even assets with the same core characteristics (such as different versions of the same digital artwork) will generate unique hash values ​​due to differences in creation time. At the same time, the hash calculation process is automatically triggered by the smart contract without human intervention, avoiding hash value deviations caused by human operation.

[0032] After the ownership data package is generated, the system will automatically extract the first 8 bits of the hash value as a fast retrieval code for quick matching in subsequent on-chain notarization and transaction processes. At the same time, the hash value will be associated with metadata such as asset file name and format for storage, making it convenient for users to quickly locate the corresponding on-chain ownership information when managing locally.

[0033] Step 2: On-chain rights confirmation registration and certificate generation

[0034] The ownership data package is written into the blockchain distributed ledger, and the smart contract automatically executes the notarization process. The on-chain registration is completed within 5-10 minutes, generating an ownership certificate containing a hash value. This certificate can be queried in real time through a blockchain explorer.

[0035] Specifically, the blockchain distributed ledger adopts a multi-node consensus mechanism. Each node stores a complete copy of the ownership data package. When a smart contract executes the notarization process, it needs to obtain consensus verification from the nodes to complete the on-chain registration. At the same time, the ownership certificate includes a hash value visualization QR code, an on-chain notarization timestamp, and node signature information. When queried through a blockchain explorer, the complete verification path of the ownership data package can be displayed synchronously.

[0036] Among them, the multi-node consensus mechanism requires cultural institutions, copyright management departments and other nodes in the consortium blockchain to simultaneously verify the consistency between the hash value of the ownership data packet and the ownership information. After the verification is passed, each node generates a node signature and uploads it to the blockchain to ensure the credibility of the evidence information.

[0037] In addition, when the smart contract executes the notarization process, it will automatically associate the ownership data packet generated in step 1, first verify the uniqueness of the hash value (compare it with the existing hash value on the chain to avoid duplicate confirmation), and then execute the registration operation. The entire process, from data packet upload to certificate generation, is strictly controlled within 5-10 minutes and supports breakpoint resume. If the network is interrupted in the middle, it can continue from the breakpoint after the connection is restored, without affecting the final confirmation result.

[0038] Meanwhile, the visual QR code of the certificate of ownership contains the hash value, the storage timestamp, and the address information of the consortium blockchain node. After scanning the code, users can be directly redirected to the corresponding query page of the blockchain explorer without having to manually enter the hash value, which simplifies the verification process. The electronic version of the certificate will be automatically sent to the creator's on-chain account through a smart contract, so that he can access and use it at any time.

[0039] Step 3: Execution of smart contract transactions on the consortium blockchain

[0040] Based on the consortium blockchain architecture, transaction rules are preset in the smart contract. When a user initiates a transaction request, the smart contract automatically verifies the buyer's account balance and the seller's ownership hash, and completes the transfer and asset delivery within 1-2 minutes. The entire transaction is traceable on the blockchain.

[0041] Specifically, the consortium blockchain architecture includes three types of nodes: cultural institutions, copyright management departments, and trading platforms. The smart contract's preset transaction rules include pricing methods, authorization periods (e.g., accurate to the hour), and profit sharing ratios. At the same time, during transaction verification, in addition to verifying the buyer's balance and the seller's ownership hash, it is also necessary to verify the buyer's account's KYC (Know Your Customer) authentication status. Accounts that have not passed authentication cannot initiate transactions.

[0042] The pricing method supports two modes: fixed price and auction price. Fixed price transactions are directly locked by smart contracts and the transfer is executed. Auction price transactions are preset with bidding duration and increment. When the bidding expires, the asset is automatically delivered to the highest bidder. Both modes use on-chain timestamps to ensure the fairness of price execution.

[0043] In addition, when the smart contract executes the transaction, it will automatically retrieve the ownership certificate information generated in step 2, verify the consistency between the seller's ownership hash and the registration on the chain, and automatically complete the splitting and transfer of funds according to the preset profit sharing ratio (e.g., 70% for the creator and 30% for the platform). The entire process requires no manual intervention, and the time from transaction initiation to settlement completion is controlled within 1-2 minutes.

[0044] Key nodes throughout the transaction process (such as initiation time, price, and hashes of both parties' accounts) are written into the consortium blockchain ledger in real time by smart contracts. Cultural institutions and copyright management departments can query transaction records with read-only permissions, which not only achieves full traceability but also avoids the risk of transaction data being tampered with. At the same time, it supports the on-chain generation of transaction vouchers, and users can verify the authenticity of the transaction at any time through a blockchain explorer.

[0045] Step 4: Automatic Infringement Monitoring and Accountability Implementation

[0046] The smart contract combines digital fingerprint technology to regularly scan all digital assets on the network. It compares the scanned asset information with the hash information of the confirmed rights on the chain. If any infringement is found, the infringing account will be frozen immediately, the deposit will be deducted, and the infringement information will be made public, so as to realize automatic accountability for infringement.

[0047] Specifically, digital fingerprinting technology breaks down on-chain hash values ​​into 1024 feature fragments, scans once per hour, and covers mainstream digital asset trading platforms, social media, and cloud storage services. At the same time, it uses a fuzzy matching algorithm for comparison. When the similarity exceeds 95% and no authorization is obtained, it is determined to be an infringement. The frozen infringing account must complete the deletion of infringing assets and the replenishment of the margin before the smart contract can automatically unfreeze it.

[0048] Among them, 1,024 feature fragments correspond to the core features of digital assets (such as the geometric vertex distribution of virtual ancient buildings and the color distribution pattern of digital artworks). Each fragment is associated with the original chain hash value through hash operation to ensure that the asset association can be accurately matched during scanning and avoid misjudgment caused by format conversion or slight compression.

[0049] In addition, when performing infringement monitoring, the smart contract will first retrieve the on-chain certificate information stored in step 2, compare the scanned asset characteristics with the characteristic fragments corresponding to the hash value in the certificate, and if no matching authorization record is found (e.g., the authorization period has expired or no sub-license has been obtained), it will be immediately determined to be an infringement and trigger the preset penalty mechanism.

[0050] The infringement information disclosure includes characteristic fragments of the infringing assets, the original ownership hash value, and the anonymized identifier of the infringing account. The disclosure information is uploaded to the consortium blockchain ledger for the entire network to query. At the same time, the smart contract will synchronize the infringement record to the copyright management department node, forming a collaborative mechanism of "technical accountability + administrative supervision". The deposit deduction ratio is automatically adjusted according to the infringement situation (for example, 20% deduction for the first infringement and 50% deduction for repeated infringements) to ensure that the accountability is commensurate with the infringement behavior.

[0051] Step 5: Cross-chain hash mapping and universal identifier generation

[0052] The design incorporates a cross-chain hash mapping mechanism to generate universal asset identifiers across platforms via smart contracts, thereby addressing the issue of repeated confirmation of rights required for asset delivery between different platforms.

[0053] Specifically, the cross-chain hash mapping mechanism generates cross-platform identifiers through hash value desensitization processing. When generating cross-platform identifiers, the smart contract simultaneously records the mapping relationship between the original chain hash value and the cross-chain identifier and stores it on the chain. Different platforms can verify the correlation between the cross-platform identifier and the original chain hash value by calling the cross-chain query contract, without having to repeat the rights confirmation process.

[0054] Among them, the hash value desensitization process retains the first 64 bits and the last 64 bits of the original hash value as the core identifier segment, and the middle part is replaced with a 16-bit platform identifier code (uniformly allocated by the consortium chain nodes). This ensures the correlation between the cross-platform identifier and the original chain hash, and also distinguishes different circulation scenarios through the platform identifier code.

[0055] In addition, after the smart contract generates a cross-platform identifier, it will automatically trigger the mapping relationship on-chain process, package and store the original chain hash value, cross-platform identifier, generation timestamp and processing node signature. When any platform calls the cross-chain query contract, it needs to provide the cross-platform identifier and its own platform identifier code. After the contract is verified, it returns the correlation proof of the original chain hash value. The whole process does not require manual intervention.

[0056] The validity period of the cross-chain identifier is consistent with that of the original ownership certificate. When the ownership information of the original chain is updated (such as a change in the scope of authorization), the smart contract automatically updates the mapping relationship to ensure that the cross-platform identifier is always associated with the latest ownership information. It also supports the cancellation function of the cross-chain identifier. After the original chain rights holder initiates a cancellation request, the cross-chain identifiers of all associated platforms will become invalid simultaneously, thus completely solving the consistency and security issues of cross-platform asset ownership confirmation.

[0057] In summary, the above five steps have enabled fully automated management of cultural digital assets, from core feature extraction and ownership binding to on-chain rights confirmation, smart trading, infringement accountability, and cross-platform circulation. This approach ensures the uniqueness and immutability of asset ownership through hash encryption and blockchain technology, achieves efficient execution of transactions and rights protection through smart contracts, and breaks down platform barriers through cross-chain mapping mechanisms.

[0058] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for efficient ownership confirmation of cultural digital assets based on hash encryption and smart contracts, characterized in that: S1. Extract the core features of cultural digital assets, generate a unique hash value through a hash algorithm, and bind the hash value with the ownership information of the creator, creation time, and scope of authorization to form an immutable ownership data package. S2. Write the ownership data package into the blockchain distributed ledger. The smart contract automatically executes the notarization process, completes the on-chain registration within 5-10 minutes, and generates an ownership certificate containing a hash value. This certificate can be queried in real time through a blockchain explorer. S3. Based on the consortium blockchain architecture, transaction rules are preset in the smart contract. When a user initiates a transaction request, the smart contract automatically verifies the buyer's account balance and the seller's ownership hash, and completes the transfer and asset delivery within 1-2 minutes. The entire transaction is traceable on the blockchain. S4: Smart contracts combine digital fingerprint technology to regularly scan all digital assets on the network. The scanned asset information is compared with the hash information of the confirmed rights on the chain. If infringement is found, the infringing account is immediately frozen, the deposit is deducted, and the infringement information is made public, so as to realize automatic accountability for infringement. S5. Design a cross-chain hash mapping mechanism to generate cross-platform universal asset identifiers through smart contracts to solve the problem of repeated confirmation of rights for asset delivery between different platforms.

2. The efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts according to claim 1, characterized in that: In S1, the core features of cultural digital assets include the geometric vertex coordinates and texture map pixel matrix of the virtual ancient building model, the brushstroke trajectory and color channel values ​​of the digital artwork. At the same time, the hash algorithm adopts the SHA-3 algorithm, and the generated hash value is 256 bits long. It is also bound to the ownership information through an asymmetric encryption algorithm to ensure that the ownership data packet can be directly identified through hash value verification after being tampered with.

3. The efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts as described in claim 1, characterized in that: In S2, the blockchain distributed ledger adopts a multi-node consensus mechanism. Each node stores a complete copy of the ownership data package. When the smart contract executes the notarization process, it needs to obtain consensus verification from the nodes to complete the on-chain registration. At the same time, the ownership certificate includes a hash value visualization QR code, an on-chain notarization timestamp, and node signature information. When queried through a blockchain explorer, the complete verification path of the ownership data package can be displayed synchronously.

4. The efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts as described in claim 1, characterized in that: In the S3, the consortium blockchain architecture includes three types of nodes: cultural institutions, copyright management departments, and trading platforms. The smart contract's preset trading rules include pricing methods, authorization periods, and profit sharing ratios. During transaction verification, in addition to verifying the buyer's balance and the seller's ownership hash, the buyer's account's KYC authentication status must also be verified. Accounts that have not passed authentication cannot initiate transactions.

5. The efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts as described in claim 1, characterized in that: In S4, the digital fingerprint technology breaks down the on-chain hash value into 1024 feature fragments, scans once per hour, and covers mainstream digital asset trading platforms, social media and cloud storage services. At the same time, a fuzzy matching algorithm is used for comparison. When the similarity exceeds 95% and no authorization is obtained, it is determined to be an infringement. The frozen infringing account must complete the deletion of infringing assets and the replenishment of the margin before the smart contract can automatically unfreeze it.

6. The efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts according to claim 1, characterized in that: In S5, the cross-chain hash mapping mechanism generates a cross-platform identifier through hash value desensitization processing. When the smart contract generates the cross-platform identifier, it simultaneously records the mapping relationship between the original chain hash value and the cross-chain identifier and stores it on the chain. Different platforms can verify the correlation between the cross-platform identifier and the original chain hash value by calling the cross-chain query contract, without having to repeat the rights confirmation process.

7. The efficient method for confirming ownership of cultural digital assets based on hash encryption and smart contracts according to claim 1, characterized in that: The blockchain adopts a hybrid architecture of private and consortium blockchains. The core information of the ownership data package is stored on the consortium blockchain, while the original asset files are compressed and encrypted and stored on the private blockchain. The private and consortium blockchains are linked and verified through smart contracts, which ensures that the core information is publicly available and verifiable, while also protecting the privacy of the original asset data.

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