CN115329001A - Alliance-chain-based digital collection system and digital collection query method - Google Patents
Alliance-chain-based digital collection system and digital collection query method Download PDFInfo
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- CN115329001A CN115329001A CN202210969417.3A CN202210969417A CN115329001A CN 115329001 A CN115329001 A CN 115329001A CN 202210969417 A CN202210969417 A CN 202210969417A CN 115329001 A CN115329001 A CN 115329001A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2379—Updates performed during online database operations; commit processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
- G06F16/2468—Fuzzy queries
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- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
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- G06Q30/0625—Directed, with specific intent or strategy
Abstract
The invention relates to a digital collection system and a digital collection query method based on a alliance chain, and belongs to the technical field of block chains. The system comprises a collection platform and a alliance chain, wherein the collection platform comprises a receiving module, a chain linking module, a platform database, a platform search engine and an alliance chain search engine, and the alliance chain comprises an intelligent contract, an encryption and decryption algorithm and an alliance chain database; the receiving module is used for receiving the uplink request and the digital collection; the chain winding module is used for chain winding, inputting the key words of the digital collection, and storing the hash value of the digital collection and the key words in the platform database; the platform search engine is used for fuzzily searching in the platform database; the alliance chain search engine is used for searching in the alliance chain database accurately. The method comprises the following steps: and carrying out fuzzy search in the platform database to obtain the hash value of the digital collection, and accurately searching in the alliance chain database according to the hash value. The invention solves the technical problems that the existing system has low query efficiency and can not accurately retrieve the required collection.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to a digital collection system and a digital collection query method based on a alliance chain.
Background
With the continuous development of information technology, the traditional literary creation industry is continuously changed, a variety of technologies such as AI, 5G, VR, and blockchain are continuously fused and permeated with the cultural creation industry, and the traditional literary creation industry gradually moves towards digital transformation. The digital collection jumps over the tide in this revolution. The digital collection originally originated from NFT, an on-chain asset that was uniquely identified by a blockchain technique. Wherein, the internet enterprises such as Ali, jingdong, fun chain, baidu and the like which naturally have block chain factors go deep into the internet enterprises to perfect product matrixes; visual China, mango TV, microblog and other traditional enterprises are actively rushing to beach and layout digital collection platforms. In technical terms, the alliance chain has the following advantages: the nodes in the alliance chain are only a few and have high trust degree, and the transaction does not need the confirmation of all network nodes, so the transaction speed is faster than that of any other blockchain. Since the read right is determined by the organization, the privacy of the organization is better. The method is more suitable for applications with high requirements on privacy protection, transaction speed, internal supervision and the like. The confirmation time of the alliance chain to the transaction and the transaction number per second are greatly different from the public chain, and the requirements on safety and performance are higher than those of the public chain. Therefore, the domestic encrypted collection platform is supported by the alliance chain to provide the bottom technical support, for example, the ant chain provides the technical support for the digital collections of the Paibao and Ali platforms; the Tencent to the signal chain provides technical support for the magic core; the Jingdong Zhi Zhen chain provides technical support for Ling Yu, and the Jingdong Zhi Zhen chain, the ant chain under the ant flag, and the Tengcong signal chain all belong to the block chain network (alliance chain) for permission control.
However, the existing alliance chain block has a large variety of commodities, so that when a user searches for a desired commodity, the searching efficiency is low, and the desired commodity cannot be accurately searched. Moreover, the existing digital collection transaction platform needs to register members, recharge and purchase when paying, and the transaction steps are complicated. In addition, copyright dispute and authenticity identification in the digital Tibetan transaction are key problems influencing the circulation of the digital Tibetan.
Disclosure of Invention
The invention aims to provide a digital collection system and a digital collection query method based on an alliance chain, and aims to solve the technical problems that the varieties of commodities in an alliance chain block are various, a user searches for needed commodities with low searching efficiency, and the needed commodities cannot be accurately searched.
The technical scheme of the alliance chain-based digital collection system for the collections is as follows: the collection system comprises a collection platform and a alliance chain, wherein the collection platform comprises a receiving module, a chain loading module, a platform database, a platform search engine and an alliance chain search engine, and the alliance chain comprises an intelligent contract, an encryption and decryption algorithm and an alliance chain database; the receiving module is used for receiving a chain-up request of a registered user and a digital collection requested to be uploaded, the chain-up module is used for calling a user address and an intelligent contract when the registered user carries out chain-up of the digital collection, inputting keywords of the digital collection to realize chain-up of the digital collection, and storing hash values generated when the digital collection is subjected to chain-up and the input keywords of the digital collection in the platform database;
the platform database is used for storing digital collection information generated after chain linking, and the digital collection information comprises digital collection keywords and on-chain transaction hash values;
the platform search engine is used for calling a search algorithm to search in a platform database according to the digital collection key words input by the user and outputting a search result;
and the alliance chain search engine is used for calling a search algorithm to search in an alliance chain database according to the digital collection corresponding information input by the user so as to obtain the required digital collection.
The beneficial effects of the invention are: according to the digital collection system, when the digital collection is linked, the keywords are set for the digital collection, and the keywords and the digital collection information corresponding to the keywords are stored in the platform database, so that the accurate information of the digital collection can be retrieved from the platform database through the keywords, and then the accurate information of the digital collection is searched in the alliance chain database. The technical problems that the data size is huge, the query efficiency is low and the required commodities cannot be accurately retrieved when fuzzy search is directly performed in the alliance chain database are solved through a two-step search mode.
Further, the collection system further comprises an authentication module, wherein the authentication module is used for authenticating the uplink digital collection, generating an authentication certificate and storing the authentication certificate in the platform database. By carrying out professional authority certification on the digital collection, the authority and the authenticity of the digital collection are ensured.
Further, the authentication module authenticates the uplink digital collection in the following manner: and generating watermark information by using a certificate or an identifier authenticated by a professional authority to embed into the digital collection in a watermark embedding mode. The digital watermark has the characteristics of high safety, good concealment and strong robustness, thus improving the anti-counterfeiting property of the digital collection.
Furthermore, the receiving module is also used for calling a private key corresponding to the user to perform digital signature on the digital collection according to the uplink request of the user. The digital signature determines the ownership of the digital collection, and provides support for the problem of the authenticity of the digital collection.
The collection system further comprises a transaction module, wherein the transaction module is used for triggering the corresponding block chain network state after the user selects the required digital collection, so that the related currency commodity transaction intelligent contract is called and executed, meanwhile, the transaction module is connected with a third party payment module, and after the user finishes payment, a payment notice is received, and a payment success interface is returned. And the payment module is associated with a third party payment module, so that the payment process of the digital collection is simplified, the transaction efficiency is improved, and the transaction cost is saved.
Furthermore, the hash value generated when the digital collection is linked is embedded into the digital collection in a watermark mode.
Furthermore, a private key of a user is used for generating a watermark signal according to a watermark generation algorithm, and the watermark signal is embedded in the digital collection through a watermark embedding algorithm.
Further, the federation chain is the FISCO BCOS federation chain. The FISCO BCOS takes the actual requirements of the alliance chain as a starting point, gives consideration to performance, safety, operation and maintenance, usability and expandability, supports various SDKs, provides a visual middleware tool, and greatly shortens the time of chain building, development and application deployment. Therefore, the digital collection system developed by the FISCO BCOS alliance chain has the advantages of more complete functions, higher transaction safety, easier maintenance and good expandability.
The technical scheme of the digital collection query method based on the alliance chain for solving the technical problems is as follows: the digital collection query method is implemented based on the digital collection system based on the alliance chain, and comprises the following steps: inputting a keyword of a required digital collection into a platform search engine, carrying out fuzzy search in a platform database, outputting all digital collection information and hash values containing the keyword of the digital collection, selecting the required digital collection according to the name information of the digital collection in the digital collection information, positioning in a alliance chain database according to the hash value of the required digital collection, and checking the detailed content of the required digital collection.
The beneficial effects of the invention are: according to the digital collection system, when the digital collection is linked, the keywords are set for the digital collection, and the keywords and the digital collection information corresponding to the keywords are stored in the platform database, so that the accurate information of the digital collection can be retrieved from the platform database through the keywords, and then the accurate information of the digital collection is searched in the alliance chain database. The technical problems that the data size is huge, the query efficiency is low and the required goods cannot be accurately retrieved when fuzzy search is directly carried out in the alliance chain database are solved through a two-step search mode.
Drawings
FIG. 1 is a block diagram of the architecture of a federation chain-based digital collection system according to an embodiment of the present invention;
FIG. 2 is a flowchart of the present invention for the uplink of digital collections;
FIG. 3 is a schematic diagram of the conventional FISCO BCOS group architecture;
fig. 4 is a flow chart of digital collection inquiry and payment according to an embodiment of the invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The technical idea of the invention is as follows: 1) When the digital collection is linked, the key word information of the digital collection is input, and the hash value of the digital collection generated during the linking, the name of the digital collection and the key word information are stored in a platform database. 2) When a user searches for a required digital collection, the searching is carried out in two steps: firstly, carrying out fuzzy search by using keywords in a platform database of a collection platform to find accurate commodity information; and then, accurately searching on the block chain according to the found accurate commodity information to find the block chain commodities. 3) The authentication module is cooperated with an authority to set up an authentication module, and in the chain link of the digital collection, the digital collection information is stored in the platform database, so that the authentication module can call the digital collection information to authenticate the digital collection, issue an authentication certificate and store the authentication certificate in the platform database. 4) The transaction module is arranged and connected with the third-party payment module, and the third-party payment module can be popped up to realize payment when a user pays, so that the transaction process is simplified.
Through the improvement of the four aspects, the defects in the aspect of digital collection retrieval in the block chain servers including the public chain and the alliance chain block chain servers are overcome, namely the defects that the public chain and the alliance chain block chain collections are various in variety and cannot be used for accurately retrieving commodities are overcome, and the searching technology is high in implementation difficulty and high in cost. Meanwhile, some block chain digital collection platforms have complicated transaction steps, cannot realize code scanning payment, and often need to register members of the platforms and recharge for purchase. And the authority and the authenticity of the digital collection are ensured to a certain extent through the authentication of an authority mechanism. The collection system realizes innovation of key links such as simple search, simple registration, simple payment and code scanning payment while realizing the advantage of non-falsification of block chain safety, and has the advantages of convenience and low operation and maintenance cost compared with the existing block chain digital collection transaction platform.
The invention is based on an embodiment of a federation chain digital collection system.
The digital collection system of the embodiment includes a collection platform and a federation chain, where the collection platform includes a receiving module, an uplink module, a platform database, a platform search engine, and a federation chain search engine, and the federation chain includes an intelligent contract, an encryption/decryption algorithm, and a federation chain database, as shown in fig. 1.
The receiving module is used for receiving an uplink request of a registered user and a digital collection requested to be uploaded.
The chain-linking module is used for calling a user address and an intelligent contract when a user registers a digital collection to link the chain, inputting a keyword of the digital collection to realize chain linking of the digital collection, and storing a hash value generated during chain linking of the digital collection, the keyword of the digital collection and name information of the digital collection in a platform database, as shown in fig. 2.
The platform database is used for storing digital collection information generated after chain linking, and the digital collection information comprises digital collection keywords, chain transaction hash values and digital collection names; the platform database can be a database arranged locally or a network server database which is used for renting or purchasing the project belonging to the collection platform of the company in the network server by the enterprise.
The platform search engine is used for calling a search algorithm to search in a platform database according to the digital collection key words input by the user and outputting a search result; the platform search engine can be a search engine built on the basis of a local database, and can also be a search engine built on the basis of a network server database which is used by the company's own collection platform project and is hired or bought in an online server by the enterprise.
And the alliance chain search engine is used for calling a search algorithm to search in an alliance chain database according to the corresponding information of the digital collection input by the user so as to obtain the required digital collection.
In order to further ensure the authenticity, authority and uniqueness of the digital collection, the collection system is also provided with an authentication module, and the authentication module is used for authenticating the cochain digital collection, generating an authentication certificate and storing the authentication certificate in a platform database. The specific authentication method may be: and generating watermark information by using a certificate or an identifier authenticated by a professional authority to embed into the digital collection in a watermark embedding mode.
The digital Tibetan can be broadcasted and packed to the blocks of the block chain after the chain is linked, in order to prevent actions such as embezzlement, tampering and the like, digital signature is generally carried out on the digital Tibetan, namely each user can correspondingly generate a private key which is stored in advance, and the private key can be used for carrying out digital signature on the digital Tibetan during the chain linking. The digital signature ensures that the transaction data cannot be falsified by a third party and also ensures that the uplink data is necessarily signed by a private key holder, cannot be forged and cannot be repudiated.
In addition, the uplink data has multiple copies, and each full-ledger node retains complete blockchain data, so that the possibility that the whole blockchain network cannot normally operate due to single machine failure or data on the chain is lost due to hard disk failure does not exist.
When the digital collection is chained, a hash value is generated, the hash value is unique, and the corresponding unique digital collection can be found through the hash value. All accounts in the block chain network can check transaction information by using the hash value, so that the uniqueness, the accuracy and the openness of the transaction are ensured; meanwhile, the collection system of the invention cooperates with a relevant authority to return a corresponding certificate for user transaction and embed digital watermark for the user transaction to prove the uniqueness of the certificate.
Further, a transaction module in the collection system is improved, the transaction module is connected with a third-party payment module, such as a payment treasure and a WeChat, and when a user pays, the payment treasure and the WeChat payment module can be popped up to realize payment.
Specifically, for a WeChat payment transaction flow: the user selects the required collection and then triggers the corresponding block chain network state, so that the related currency commodity transaction intelligent contract is called and executed, meanwhile, after the WeChat payment is selected, the system background receives the user payment order, the WeChat payment unified ordering interface is called, the normal ID is returned, then the signature is generated according to the signature specification and then the data is transmitted to the website system, the WeChat payment is called, the background receives the payment notice, after the payment is completed, the background can inquire the payment result, and after the payment is successful, the payment successful interface is returned.
Payment transaction flow: (1) the website submits parameters to a payment bank interface in a POST request mode, payment processing is carried out at a payment bank end, the POST request mode ensures the safety to a certain extent, and meanwhile, in order to prevent tampering, some encryption protocols are adopted to communicate with an algorithm technology; (2) in the Payment treasure interface, a payment result is notified and returned to the collection system so as to update order state information, and the callback mode comprises synchronous callback and asynchronous callback; (3) and after the state is updated, triggering the intelligent contract and calling to complete subsequent operations such as transaction uplink and the like.
Further, the hash watermark of the alliance chain is directly read in a database by calling the hash value in the alliance chain, and then is cut into the digital collection.
Further, the user adds the security algorithm watermark when uplink. In the watermark embedding process, a watermark signal is generated according to a secret key of a user and a watermark generating algorithm, and the watermark signal and an original collection information image are combined through a watermark embedding algorithm to obtain an image embedded with the watermark. In the process of extracting the watermark signal, the watermark signal can be recovered through a watermark generation algorithm under the corresponding secret key. The embedded watermark information mentioned here is mainly hash value on block chain and authentication information returned by authority, and the key is automatically generated in the system by using user information.
Three watermark embedding algorithms applicable in the present collection system are described below:
(1) an addition method comprises the following steps: the watermark-added image can be obtained by processing the gray value of the information image of the original collection and superposing the gray value of the watermark image on the gray value of the original collection according to a certain weight. Similarly, if the watermark image is desired to be recovered, the original image can be directly subtracted from the image with the watermark.
(2) Least significant bit algorithm: which is a typical spatial domain information hiding algorithm, for an 8-bit gray image, the gray value of which can be represented as 0 to 255, and then it can be divided into 8-bit planes from low to high. Because the gray scale weight occupied by the high-order bit plane is higher, the high-order bit plane of the watermark signal can directly replace the low-order bit plane of the original image, thereby achieving the effect of watermark embedding. The process of extracting the watermark can be directly recovered and extracted according to the low-order bit plane of the image added with the watermark.
(3) Wavelet transformation: the local transformation of space time and frequency can effectively extract information from signals, and multi-scale refinement analysis can be carried out on functions or signals through the operation functions of stretching, translation and the like, so that time subdivision at high frequency and frequency subdivision at low frequency are achieved. In general, in digital image processing, discrete wavelet transform is used to process an image, the image is transformed into two parts of a low frequency domain (representing the overview of the image) and a high frequency domain (representing the details of the image), and the high frequency part can be divided into three regions of HL representing a horizontal direction component of the image, LH representing a vertical direction component of the image, and HH representing a diagonal direction component of the image. The low frequency coefficient represents the average brightness of the image block corresponding to the wavelet block in which it is located, and the high frequency coefficient represents the texture and edge portions of the image. If the low frequency region is further wavelet transformed, the low frequency domain will recursively generate higher order low and high frequency regions according to the above principle.
Therefore, the digital collection after chaining in this system has 3 certificates: (1) hash watermarking in federation chain; (2) adding a secret algorithm watermark to a user during uplink; and (3) the solid mark watermark awarded by the cooperative authority. The three certificates further enhance the uniqueness, authenticity and authority of the digital collection, and provide support for subsequently solving copyright disputes and protecting the interests of legal owners of digital property rights.
In view of the advantages of the FISCO BCOS alliance chain, the invention preferably uses the FISCO BCOS alliance chain as the underlying platform of the favorite system, and the group architecture of the FISCO BCOS alliance chain is shown in FIG. 3. Of course, other types of alliance chains, such as ant chains, tencent chain, jingdong Zhizhen chain, etc., may be used as other embodiments.
Provided is an embodiment of a digital collection query method based on a alliance chain.
The query method of the embodiment is performed based on the above embodiment of the alliance-chain-based digital collection system, and specifically includes the following steps: inputting the keywords of the digital collection into the platform search engine, performing fuzzy search in the platform database, outputting all digital collection information including the keywords of the digital collection, selecting the required digital collection according to the name information of the digital collection in the digital collection information, and positioning and checking the detailed content of the required digital collection in the alliance chain database according to the hash value of the required digital collection, as shown in fig. 4.
The following describes the specific implementation process of the digital collection query method in detail by taking a panda digital collection as an example.
A seller user registers and logs in a digital collection platform, a panda artwork to be sold is linked up in the digital collection platform through an intelligent contract to generate hash of a panda year picture head portrait, meanwhile, the seller user inputs the name of the commodity, namely the panda year picture head portrait, at the moment, the linked panda year picture head portrait commodity has block chain hash and is stored in a FISCO BCOS alliance chain, and the commodity name of the panda year picture head portrait is also stored in the FISCO BCOS alliance chain. Meanwhile, the name information of the commodity of the panda year picture head portrait is also stored in the database of the collection platform.
After a consumer registers and logs in a collection platform, when the consumer searches for panda type head portraits, firstly, a fuzzy word panda is input in a platform database search bar, and then the panda year-picture head portraits can be accurately searched.
Because the system stores data containing key words, hash values (hash) of the transaction on the chain and other important information into the MySQL database when each piece of artwork information is linked, a consumer calls an algorithm to search and output the key words 'pandas' in MySQL during searching, the consumer can inquire needed related information, and then if the consumer needs to check the detailed information, the related information is obtained, such as the name information of the commodity 'panda year picture' and the detailed information can be positioned and checked in a alliance chain network through the hash of the transaction on the artwork.
And secondly, copying and pasting the panda year picture head portrait serving as an accurate keyword of the artwork to be purchased, namely the panda year picture head portrait, into a block chain search server (such as a FISCO BCOS alliance chain block chain), copying the panda year picture head portrait, clicking for searching, and finding the block chain commodity named as the panda year picture head portrait.
The head portrait of the panda required can be inquired through the two steps, then the user clicks to purchase, the code is scanned (the WeChat and Paibao two-dimensional code can be scanned), the payment (the payment is directly called by a mature module) is carried out, and the purchase process is easily realized.
Claims (9)
1. The digital collection system based on the alliance chain is characterized by comprising a collection platform and an alliance chain, wherein the collection platform comprises a receiving module, an uplink module, a platform database, a platform search engine and an alliance chain search engine, and the alliance chain comprises an intelligent contract, an encryption and decryption algorithm and an alliance chain database; the receiving module is used for receiving a chain-up request of a registered user and a digital collection requested to be uploaded, the chain-up module is used for calling a user address and an intelligent contract when the user registers the chain-up of the digital collection, inputting a keyword of the digital collection to realize the chain-up of the digital collection, and simultaneously storing a hash value generated when the digital collection is chain-up and the input keyword of the digital collection in the platform database;
the platform database is used for storing digital collection information generated after chain linking, and the digital collection information comprises digital collection key words and on-chain transaction hash values;
the platform search engine is used for calling a search algorithm to search in a platform database according to the digital collection key words input by the user and outputting a search result;
and the alliance chain search engine is used for calling a search algorithm to search in an alliance chain database according to the digital collection corresponding information input by the user so as to obtain the required digital collection.
2. A federation chain-based digital collection system according to claim 1, wherein the collection system further comprises an authentication module for authenticating the uplinked digital collection, generating an authentication certificate, and storing the authentication certificate in the platform database.
3. The alliance-chain-based digital collection system of claim 2 wherein the authentication module authenticates the uplink digital collection by: and generating watermark information by using a certificate or an identifier authenticated by a professional authority to embed into the digital collection in a watermark embedding mode.
4. The alliance-chain-based digital collection system of claim 1, wherein the receiving module is further configured to invoke a private key corresponding to the user to digitally sign the digital collection according to a uplink request of the user.
5. The alliance-chain-based digital collection system of claim 1, wherein the collection system further comprises a transaction module, the transaction module is used for triggering the corresponding blockchain network state after a user selects a required digital collection, so that an intelligent contract for related currency commodity transaction is called and executed, and meanwhile, the transaction module is connected with a third party payment module, receives a payment notification after the user completes payment, and returns a payment success interface.
6. A federation chain-based digital collection system as recited in claim 1, wherein the hash value generated when a chain is linked on a digital collection is watermarked on the digital collection.
7. A federation chain-based digital collection system as recited in claim 4, wherein the watermark signal is generated from a private key of the user according to a watermark generation algorithm, and the watermark signal is embedded in the digital collection by a watermark embedding algorithm.
8. A federation chain-based digital collection system as recited in claim 1, wherein the federation chain is the FISCO BCOS federation chain.
9. A digital collection query method applied to the alliance-chain-based digital collection system of any one of claims 1 to 8, wherein the method comprises the following steps: inputting a keyword of a required digital collection into a platform search engine, carrying out fuzzy search in a platform database, outputting all digital collection information and hash values containing the keyword of the digital collection, selecting the required digital collection according to the name information of the digital collection in the digital collection information, positioning in a alliance chain database according to the hash value of the required digital collection, and checking the detailed content of the required digital collection.
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| CN117171413A (en) * | 2023-09-07 | 2023-12-05 | 滨州八爪鱼网络科技有限公司 | Data processing system and method for digital collection management |
| CN117171413B (en) * | 2023-09-07 | 2024-03-08 | 滨州八爪鱼网络科技有限公司 | Data processing system and method for digital collection management |
| CN117541393A (en) * | 2024-01-10 | 2024-02-09 | 悦享星光(北京)科技有限公司 | NFT transaction method and system |
| CN117541393B (en) * | 2024-01-10 | 2024-03-19 | 悦享星光(北京)科技有限公司 | NFT transaction method and system |
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