Digital economy monitoring method based on block chain technology

Abstract

The invention belongs to the technical field of digital economy monitoring, and particularly relates to a digital economy monitoring method based on a block chain technology, and the method comprises the following steps: 1, constructing a digital economy co-creation platform based on a block chain, and enabling the digital economy co-creation platform to comprise a plurality of participants and a supervisor; 2, a plurality of participants jointly generate values through resource integration in the value co-creation process based on the digital economic co-creation platform, and a value network structure is constructed based on a block chain; 3, in the value network structure, dividing a value co-creation process into a value resource selection stage, a value resource acquisition stage and a value win-win stage through analysis and function definition of a resource subject; and step 4, the supervisor supervises whether the establishment process of the digital economic co-creation platform and the value co-creation process of the plurality of participants based on the digital economic co-creation platform are abnormal in real time. According to the invention, all participants share innovative resources, and the resource sharing safety performance is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of digital economy monitoring, and specifically relates to a digital economy monitoring method based on blockchain technology. Background Art

[0002] Blockchain digital economy refers to the digital economic system built through blockchain technology. As an infrastructure technology, blockchain provides decentralized, secure and efficient support for various economic activities. However, in the process of building the digital economy, large enterprises and many small and medium-sized enterprises use innovation platforms to interact with information and resources, which easily generates a large amount of redundant information. Due to the existence of redundant information and the dispersion of resources, it becomes quite difficult to identify the quality signals of innovative resources. This makes it difficult for innovation entities to make accurate evaluations of the required resources and the innovation capabilities of their partners, and it is also difficult to fully and rationally utilize resources. In addition, due to the inconsistency of status, culture, capital and other reasons between the small and medium-sized enterprises involved in the collaboration and large enterprises, communication is likely to be poor. Therefore, the innovation entities cannot fully and clearly understand the full process resource information owned by the partners, and it takes a lot of time and cost to match accurate information. Moreover, since most of the information on innovative resources is virtual, sensitive, and non-exclusive, it is easy to be copied and spread. Even when sharing resources, some parties are unwilling to share their own resources with poor performance and take the opportunity to enjoy the high-quality resources provided by the other party. As a result, when building a digital economic innovation platform, it not only fails to promote economic innovation and development, but is even maliciously exploited. For this reason, the present invention proposes a digital economy monitoring method based on blockchain technology. Summary of the invention

[0003] The purpose of this invention is to provide a digital economy monitoring method based on blockchain technology, which can optimize business strategies, improve operational efficiency, and promote technological innovation; provide digital economy research data, enable various participants to share innovative resources, and have high resource sharing security performance.

[0004] The technical solution adopted by the present invention is as follows: The digital economy monitoring method based on blockchain technology includes the following steps: Step 1: Building a blockchain-based digital economy co-creation platform, which includes several participants and a regulator; Step 2: Based on the digital economy co-creation platform, several of the participants jointly generate value through resource integration in the value co-creation process, and build a value network structure based on blockchain; Step 3: In the value network structure, through the analysis and function definition of resource subjects, the value co-creation process of the digital economy co-creation platform empowered by blockchain is divided into: value resource selection stage, value resource acquisition stage and value win-win stage; Step 3 includes the following specific steps: Step 301: the value resource selection stage: a number of the participants complete identity authentication based on the blockchain platform, and then determine the value resources they need to obtain and the value resources they can provide based on their own participant entity content; Step 302: the valuable resource acquisition stage: the participants complete the acquisition of valuable resources based on decentralization, data traceability and data encryption transmission in the blockchain; Step 303: All the participants complete the value resource selection and value resource acquisition to achieve a win-win situation of value resources; Step 4: The regulator monitors in real time the process of building the digital economy co-creation platform and whether there are any abnormalities in the value co-creation process of several participants under the digital economy co-creation platform.

[0005] Preferably, in step 1, the regulator first builds a digital economy co-creation platform, and at the same time, several of the participating parties assist in building the digital economy co-creation platform through collaborative innovation and knowledge sharing, and empower the digital economy co-creation platform through a blockchain system, which includes an underlying technology layer, a data layer, and a smart contract layer.

[0006] Preferably, in step 301, when several of the participants complete the identity authentication process based on the blockchain platform, the value resource data of the participants are firstly improved and comprehensively collected, and the identity and management authority of the participants are ensured through system audit; the blockchain system has a distributed storage structure, each node has its own block, and the data of each block is equal. In the process of cooperation, the preset nodes in each blockchain system first select the value resources needed by the participants or owned by themselves, and use tools to convert the resource data into a format readable by the blockchain; in the shared resources, the preset nodes independently choose to disclose the corresponding value resource data to the corresponding participants, and achieve differentiated disclosure to promote the realization of shared transactions; at the same time, the identity information is bound to the value resource data through information signature to ensure the ownership of the value resource data and prevent the value resource data from being tampered with at will. Finally, the processed value resource data will be uploaded to the preset node of the blockchain.

[0007] In general, this process helps node enterprises demonstrate their own value and promotes the sharing and exchange of resources.

[0008] Preferably, in step 302, after determining the selection of valuable resources, some of the participants begin to obtain the required value. Some of the participants independently choose to access the corresponding blocks in the blockchain system to complete the acquisition of valuable resources according to their own needs. After identity verification, this selection process requires the supply and demand parties to conduct mutual verification between blocks; in the process of the valuable resource data demander obtaining resource information, the encryption algorithm based on the blockchain system is used to complete the encrypted transmission of the valuable resource data.

[0009] By utilizing digital encryption methods in blockchain systems, confidentiality and integrity can be ensured when information is transmitted. Encryption technology can effectively prevent unauthorized visitors from obtaining sensitive information, and can also prevent information from being tampered with during transmission. In general, resource recipients extract the required key resources from the block according to their own innovation goals, obtain resource value, and utilize and absorb them to maximize value.

[0010] Preferably, the supply and demand parties are participants who are demanders of valuable resource data and participants who are data owners of the valuable resource data stored in the corresponding blocks.

[0011] Preferably, in the process of completing the encrypted transmission of valuable resource data using an encryption algorithm based on a blockchain system: First, the initialization phase is carried out to initialize the blockchain system; Then, the value resource data transmission request generation phase begins. The value resource data demander generates corresponding ciphertext value resource data transmission request and supervision proof information based on the encryption algorithm of the evidence encryption scheme and the supervision public key, respectively, to achieve the hiding of the value resource data transmission request content, and sends the encrypted ciphertext value resource data transmission request and supervision proof information to the verification node of the blockchain system; Preferably, in the process of completing the encrypted transmission of value resource data using an encryption algorithm based on the blockchain system, the value resource data transmission verification stage is then entered. The verification node of the blockchain system receives the ciphertext value resource data transmission request and the supervision proof information based on the smart contract. If the total number of value resource data demanders is n, and if there are a malicious value resource data demanders in the blockchain system, then t≤(na), n>a is set. The blockchain verification node can only decrypt k ciphertext value resource data transmission requests when it receives k (t≤k≤n) ciphertext value resource data transmission requests, thereby obtaining the plaintext value resource data transmission request for verification and calculation. At the same time, the supervisor verifies the supervision proof information, and the verification node submits the verification or calculation results to the chain; Finally, the regulator uses the regulatory private key to decrypt the ciphertext value resource data transmission request based on the decryption algorithm of the LE encryption method, and completes the value resource data transmission based on the decrypted content. Finally, the regulator also supervises the value resource data transmission process.

[0012] Preferably, in the process of completing the encrypted transmission of valuable resource data using an encryption algorithm based on a blockchain system: initialization :Input security parameter γ, output public parameter pp; then generate key Keygen, the supervisor inputs public parameter pp, and outputs the key of the value resource data demander (p ki ,s ki ) and the supervisory key (p ka ,s ka ); Value resource data transfer request generates Transact(pp, V, m, p ka ), the value resource data demander inputs the public parameter pp, the value resource data demander public key set V, the message m and the supervisory public key p ka , output ciphertext value resource data transmission request tx; Supervision proof generates Auproof (pp, m, p ka ): The value resource data demander inputs the public parameter pp, message m and regulatory public key p ka , output regulatory certification information .

[0013] Value resource data transmission request verificationVerify(pp,m,p ka ): Input public parameter pp, ciphertext value resource data transmission request tx, value resource data demander's public key set U and V, where V is the verification set of n value resource data demanders, and U is the verification set of k value resource data demanders. ,and , the supervisor obtains the plaintext content m of the message and outputs m; Regulatory information verification: The regulator enters the public parameter pp, regulatory information and supervision proof information π. If the verification is successful, output 1. The supervisor completes the transmission of the value resource data from the participant who is the owner of the value resource data to the participant who is the demander of the value resource data according to the plain text content in the message content m. If the verification is not successful, output 0, and the value resource data will not be transmitted. Supervision of value resource data transmission: input public parameter pp, ciphertext transaction tx and supervision public key p ka , output the message plaintext content m as the regulatory plaintext, and the supervisor determines whether there is an abnormality based on the message plaintext content m and the valuable resource data transmission process.

[0014] Preferably, in step 303, in the win-win stage of value resources, the participants with more resources use the digital economy co-creation platform to share resources and capabilities with the participants with fewer resources, and use value resource data and resources to provide support to the participants with fewer resources.

[0015] Through innovation chains, supply chains, data chains and other means, under the new industry model, small and medium-sized enterprises can return innovative achievements and complementary resources to the digital economy co-creation platform, providing impetus for the industry development of large enterprises; for small and medium-sized enterprises, they can seek industrial capital with less time and money costs, use R&D capabilities to enhance their market competitiveness, and increase market economic value; for large enterprises, they can find solutions to problems at the lowest cost, find new strategic development directions that have been sufficient for trial and error, and find innovative resources that have been cultivated and verified by the market to enrich the platform resource database, thereby greatly enhancing the network economic effect of the digital economy co-creation platform; this value co-creation development model enabled by the platform helps large, medium and small enterprises to collaborate in innovation, form a new situation of cooperation and win-win, and enhance social value.

[0016] Preferably, the regulator uses the power of the market to encourage participants to join the digital economy co-creation platform, and at the same time supervises the collaborative innovation of the digital economy co-creation platform, improves the blockchain system empowerment system, and supervises the operation status of the digital economy co-creation platform. The technical effects achieved by the present invention are: In the present invention, the amount of information available to the innovation subject is increased, and the environmental uncertainty and complexity are reduced; first, relying on blockchain technology, all value resource data will be stored in the block in the form of timestamp records; therefore, once the innovation sharing resource information is on the chain, it will be securely stored and difficult to be destroyed, which helps to build a stable data information environment, provide traceable and verifiable information for innovation resource sharing, and can effectively reduce the environmental uncertainty and complexity caused by factors such as data clutter and multiple types. Furthermore, the blockchain uses a decentralized consensus strategy between nodes to ensure the fair sharing of innovation resource information and the stability of information disclosure. Participants have the ability to obtain sufficient and reliable information, thereby more effectively promoting information sharing and coordination of interests of all parties, and reducing adverse selection problems. Finally, blockchain technology provides an open, transparent and tamper-proof platform for innovation entities to facilitate the storage, communication and sharing of information. This enhances the visibility of information sharing between innovation participants, making the entire collaborative innovation process more efficient and transparent, and regulators can also innovate value resource data under the blockchain system. Optimize business strategies, improve operational efficiency, and promote technological innovation. Academics and research institutions: Provide digital economy research data to enable all participants to share innovative resources with high security performance.

[0017] In the present invention, during the transmission of valuable resource data, the supervision content privacy protection scheme based on signature evidence encryption signs the ciphertext data transmission request to ensure that the data transmission behavior is irrefutable and the ciphertext data transmission request is not forgeable; in the present invention, the supervision content privacy protection scheme realizes the setting of the data transmission request ciphertext decryption condition by setting the value of the signature-based evidence encryption scheme, that is, the verification party can only decrypt the ciphertext when the number of ciphertexts received reaches a specific value, so that the supervision party cannot decrypt the ciphertext in advance to obtain the data transmission request content, avoiding the malicious participants from leaking the transaction content in advance; at the same time, the threshold can be adjusted to avoid the occurrence of the problem of malicious participants refusing to submit valuable resource data; the supervision party can decrypt the data transmission request ciphertext to realize the transaction content supervision, and the supervision content privacy protection scheme generates supervision proof information based on non-interactive zero-knowledge proof, proving that the generated supervision ciphertext is obtained by encrypting the plaintext message with the supervision public key. The verification node publicly verifies the supervision proof information to ensure that the supervision is effective and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of the digital economy monitoring method based on blockchain technology of the present invention; Figure 2 It is a flowchart of step 3 in the digital economy monitoring method based on blockchain technology of the present invention; Figure 3 It is a system block diagram of the digital economy monitoring method based on blockchain technology of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0020] like Figure 1-Figure 3 As shown, the digital economy monitoring method based on blockchain technology includes the following steps: Step 1: Build a blockchain-based digital economy co-creation platform, which includes several participants and a regulator, such as Figure 3 As shown, there are three participants in total, namely, participant one, participant two, and participant three; Step 2: Based on the digital economy co-creation platform, several of the participants jointly generate value through resource integration in the value co-creation process, and build a value network structure based on blockchain; Step 3: In the value network structure, through the analysis and function definition of resource subjects, the value co-creation process of the digital economy co-creation platform empowered by blockchain is divided into: value resource selection stage, value resource acquisition stage and value win-win stage; Step 3 includes the following specific steps: Step 301: the value resource selection stage: a number of the participants complete identity authentication based on the blockchain platform, and then determine the value resources they need to obtain and the value resources they can provide based on their own participant entity content; Step 302: the valuable resource acquisition stage: the participants complete the acquisition of valuable resources based on decentralization, data traceability and data encryption transmission in the blockchain; Step 303: All the participants complete the value resource selection and value resource acquisition to achieve a win-win situation of value resources; Step 4: The regulator monitors in real time the process of building the digital economy co-creation platform and whether there are any abnormalities in the value co-creation process of several participants under the digital economy co-creation platform.

[0021] In the present invention, the amount of information available to the innovation subject is increased, and the environmental uncertainty and complexity are reduced; first, relying on blockchain technology, all value resource data will be stored in the block in the form of timestamp records; therefore, once the innovation sharing resource information is on the chain, it will be securely stored and difficult to be destroyed, which helps to build a stable data information environment, provide traceable and verifiable information for innovation resource sharing, and can effectively reduce the environmental uncertainty and complexity caused by factors such as data clutter and multiple types. Furthermore, the blockchain uses a decentralized consensus strategy between nodes to ensure the fair sharing of innovation resource information and the stability of information disclosure. Participants have the ability to obtain sufficient and reliable information, thereby more effectively promoting information sharing and coordination of interests of all parties, and reducing adverse selection problems. Finally, blockchain technology provides an open, transparent and tamper-proof platform for innovation entities to facilitate the storage, communication and sharing of information. This enhances the visibility of information sharing between innovation participants, making the entire collaborative innovation process more efficient and transparent, and regulators can also innovate value resource data under the blockchain system.

[0022] Preferably, in step 1, the regulator first builds a digital economy co-creation platform, and at the same time, several of the participating parties assist in building the digital economy co-creation platform through collaborative innovation and knowledge sharing, and empower the digital economy co-creation platform through a blockchain system, which includes an underlying technology layer, a data layer, and a smart contract layer.

[0023] In the present invention, blockchain technology integrates distributed ledgers and smart contracts, which can time-stamp and track resources and service information of various sizes within the digital economy co-creation platform. It also changes the problem of information asymmetry in traditional management mechanisms, thereby enabling innovation entities to continuously clarify needs, plan interest orientations and value demands in each other's processes, better maintain consistency in goals, solve the problem of information asymmetry between innovation participants, and ultimately reduce redundant information.

[0024] Preferably, in step 301, when several of the participants complete the identity authentication process based on the blockchain platform, the value resource data of the participants are firstly improved and comprehensively collected, and the identity and management authority of the participants are ensured through system audit; the blockchain system has a distributed storage structure, each node has its own block, and the data of each block is equal. In the process of cooperation, the preset nodes in each blockchain system first select the value resources needed by the participants or owned by themselves, and use tools to convert the value resource data into a format readable by the blockchain; in the shared resources, the preset nodes independently choose to disclose the corresponding value resource data to the corresponding participants, and achieve differentiated disclosure to promote the realization of shared transactions; at the same time, the identity information is bound to the value resource data through information signature to ensure the ownership of the value resource data and prevent the value resource data from being tampered with at will. Finally, the processed value resource data will be uploaded to the preset node of the blockchain.

[0025] In general, this process helps node enterprises demonstrate their own value and promotes the sharing and exchange of resources.

[0026] Preferably, in step 302, after determining the selection of valuable resources, some of the participants begin to obtain the required value. Some of the participants independently choose to access the corresponding blocks in the blockchain system to complete the acquisition of valuable resources according to their own needs. After identity verification, this selection process requires the supply and demand parties to conduct mutual verification between blocks; in the process of the valuable resource data demander obtaining resource information, the encryption algorithm based on the blockchain system is used to complete the encrypted transmission of the valuable resource data.

[0027] By utilizing digital encryption methods in blockchain systems, confidentiality and integrity can be ensured when information is transmitted. Encryption technology can effectively prevent unauthorized visitors from obtaining sensitive information, and can also prevent information from being tampered with during transmission. In general, resource recipients extract the required key resources from the block according to their own innovation goals, obtain resource value, and utilize and absorb them to maximize value.

[0028] Preferably, the supply and demand parties are participants who are demanders of valuable resource data and participants who are owners of valuable resource data stored in the corresponding blocks.

[0029] Preferably, in the process of completing the encrypted transmission of valuable resource data using an encryption algorithm based on a blockchain system: First, the initialization phase is carried out to initialize the blockchain system; Then, the value resource data transmission request generation phase begins. The value resource data demander generates corresponding ciphertext value resource data transmission request and supervision proof information based on the encryption algorithm of the evidence encryption scheme and the supervision public key, respectively, to achieve the hiding of the value resource data transmission request content, and sends the encrypted ciphertext value resource data transmission request and supervision proof information to the verification node of the blockchain system; Preferably, in the process of completing the encrypted transmission of value resource data using an encryption algorithm based on the blockchain system, the value resource data transmission verification stage is then entered. The verification node of the blockchain system receives the ciphertext value resource data transmission request and the supervision proof information based on the smart contract. If the total number of value resource data demanders is n, and if there are a malicious value resource data demanders in the blockchain system, then t≤(na), n>a is set. The blockchain verification node can only decrypt k ciphertext value resource data transmission requests when it receives k (t≤k≤n) ciphertext value resource data transmission requests, thereby obtaining the plaintext value resource data transmission request for verification and calculation. At the same time, the regulator verifies the supervision proof information, and the verification node submits the verification or calculation results to the chain; finally, the regulator uses the supervision private key based on the decryption algorithm of the LE encryption method to decrypt the ciphertext value resource data transmission request, and completes the value resource data transmission based on the decrypted content. Finally, the regulator supervises the value resource data transmission process at the same time.

[0030] Preferably, in the process of completing the encrypted transmission of valuable resource data using an encryption algorithm based on a blockchain system: initialization : Input security parameter γ, output public parameter pp; In actual use of this embodiment, specifically: input security parameter γ, generate multiplication cyclic groups G1 and G with order p T The generators are g1 and g T , bilinear mapping e: G1×G1→G T ; Let H: {0, 1}*→G, ; , set the total number of sender users n, and the threshold t; therefore, the public parameters are pp={p, G1, G T ,g1,g T , H, H1, H2, e, n, t}; then generate the key Keygen, the supervisor inputs the public parameter pp, and outputs the key of the value resource data demander (p ki ,s ki) and the supervisory key (p ka ,s ka ); In actual use of this embodiment, specifically: the trust center inputs the public parameter pp, randomly selects the following , as the private key sk of the regulator a , calculate ux=vy=w∈G, let u,u,w be the public key p of the regulator pk ; Trust center random selection , let the user's private key be s ki =x i , calculate the corresponding public key as ; Value resource data transfer request generates Transact(pp, V, m, p ka ), the value resource data demander inputs the public parameter pp, the value resource data demander public key set V, the message m and the supervisory public key p ka , output the encrypted value resource data transmission request tx; in actual use of this embodiment, for j∈{1,…,t-1}, randomly select ,calculate And construct in ; For j∈{1,…,n}, the sender calculates w j =H2(uk j ), let s j =f(w j ), randomly selected , and calculate ; The sender calculates d j =H(T j ), , then let ,calculate , ; make ;in, The supervision ciphertext is obtained by encrypting the message m with the supervision public key (v, u,) based on the LE (Linear Encryption, LE) encryption scheme; the supervision proof generates Auproof (pp, m, p ka ): The value resource data demander inputs the public parameter pp, message m and regulatory public key p ka , output regulatory certification information .

[0031] In actual use of this embodiment, the sender generates non-interactive zero-knowledge proof information to ensure the reliability of supervision, that is, to ensure that the supervision ciphertext is generated by encrypting the transaction plaintext with the supervision public key, which is expressed as ; Random selection , then calculate , , and ; Sending calculation method , , , and ; Therefore, the regulatory proof information is ; The value resource data requester runs the BLS signature algorithm to calculate the signature on tr , and then the value resource data requester sends to the regulatory party; Value resource data transfer request verification Verify(pp, m, p ka ): Input the public parameters pp, the ciphertext value resource data transfer request tx, the public key sets U and V of the value resource data requester, where V is the verification set of n value resource data requesters, and U is the verification set of k value resource data requesters, , and The regulatory party gets the message plaintext content m and outputs m; In actual use of this embodiment, input the public parameters pp, the ciphertext transaction t, the public key sets U and V of the sender, the verification node receives transactions from different transaction senders, and gets the public key set U = {vk,..., vk} of the sender. Only when the verification node receives the ciphertext transactions of k (t ≤ k ≤ n) senders can it decrypt the ciphertexts of all transactions. Specifically as follows: The verification node first runs the algorithm to verify the signatures of each ciphertext transaction t. If the verification fails, abort; otherwise, when receiving the ciphertext transactions of k sender users U = {uk1,..., uk k}, compare V = {vk1,..., vk n} and U = {vk1,..., vk k}. If k < t or U does not belong to V, then abort; otherwise, let I be j ∈ {1,..., k} and vk j ∈ U.

[0032] For j ∈ {1,..., k}, calculate w j = H2(vk j ), and then for i ∈ I, calculate , calculate and , and then calculate ; The verification node obtains the plaintext The verification node gets the plaintext content of the data transfer requests of all senders and completes the relevant operations.

[0033] Regulatory information verification: The regulatory party inputs the public parameters pp, the regulatory information and the regulatory proof information If the verification is successful, 1 is output, and the supervisor completes the transmission of the value resource data from the participant who is the owner of the value resource data to the participant who is the demander of the value resource data according to the plain text content in the message content m; if the verification is not successful, 0 is output, and the value resource data is not transmitted; In actual use of this embodiment, the transaction supervisor inputs the public parameter pp and the supervision information and regulatory certification information , verify that the sender has indeed used the correct plaintext message encrypted with the supervisory public key, and calculate , as well as ; then calculate , verification node check Is it true? If it is true, the verification is passed and 1 is output, otherwise 0 is output. After the verification is passed, the regulator will write the verification result and the ciphertext transaction into the blockchain system; Audit (pp, tx, pka) for value resource data transmission supervision: input public parameter pp, ciphertext transaction tx and supervisory public key p ka , the supervisor supervises the data transmission process of valuable resources, through calculation , output the plain text content m of the message as the regulatory plain text; the regulator determines whether there is an abnormality based on the plain text content m of the message and the value resource data transmission process, for example, whether the content in the value resource data transmission request in the plain text content m of the message matches the actual transmitted content correctly. If the match is correct, the monitoring result is normal. If not, the value resource data transmission is stopped, and an abnormal reminder is sent to the regulator through the blockchain system.

[0034] In the present invention, the supervision content privacy protection scheme based on signature evidence encryption signs the ciphertext data transmission request to ensure that the data transmission behavior is non-repudiable and the ciphertext data transmission request is not forgeable; in the present invention, the supervision content privacy protection scheme realizes the setting of the data transmission request ciphertext decryption condition by setting the signature-based evidence encryption scheme value, that is, the verification party can only decrypt the ciphertext when the number of ciphertexts received reaches a specific value, so that the supervision party cannot decrypt the ciphertext in advance to obtain the data transmission request content, avoiding the malicious participants from leaking the transaction content in advance; at the same time, the threshold can be adjusted to avoid the problem of malicious participants refusing to submit valuable resource data; the supervision party can decrypt the data transmission request ciphertext to realize transaction content supervision, and the supervision content privacy protection scheme generates supervision proof information based on non-interactive zero-knowledge proof, proving that the generated supervision ciphertext is obtained by encrypting the plaintext message with the supervision public key. The verification node publicly verifies the supervision proof information to ensure that the supervision is effective and reliable.

[0035] Preferably, in step 303, in the win-win stage of value resources, the participants with more resources use the digital economy co-creation platform to share resources and capabilities with the participants with fewer resources, and use value resource data and resources to provide support to the participants with fewer resources.

[0036] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A digital economy monitoring method based on blockchain technology, characterized by: The following steps are involved: Step 1: Building a blockchain-based digital economy co-creation platform, which includes several participants and a regulator; Step 2: Based on the digital economy co-creation platform, several of the participants jointly generate value through resource integration in the value co-creation process, and build a value network structure based on blockchain; Step 3: In the value network structure, through the analysis and function definition of resource subjects, the value co-creation process of the digital economy co-creation platform empowered by blockchain is divided into: value resource selection stage, value resource acquisition stage and value win-win stage; Step 3 includes the following specific steps: Step 301: the value resource selection stage: a number of the participants complete identity authentication based on the blockchain platform, and then determine the value resources they need to obtain and the value resources they can provide based on their own participant entity content; Step 302: the valuable resource acquisition stage: the participants complete the acquisition of valuable resources based on decentralization, data traceability and data encryption transmission in the blockchain; Step 303: All the participants complete the value resource selection and value resource acquisition to achieve a win-win situation of value resources; Step 4: The regulator monitors in real time the process of building the digital economy co-creation platform and whether there are any abnormalities in the value co-creation process of several participants under the digital economy co-creation platform.

2. The digital economy monitoring method based on blockchain technology according to claim 1 is characterized in that: In step 1, the regulator first builds a digital economy co-creation platform, and at the same time, several of the participants assist in building the digital economy co-creation platform through collaborative innovation and knowledge sharing, and empower the digital economy co-creation platform through a blockchain system, which includes an underlying technology layer, a data layer, and a smart contract layer.

3. The digital economy monitoring method based on blockchain technology according to claim 1 is characterized in that: In step 301, during the identity authentication process of the participants based on the blockchain platform, the valuable resource data of the participants is firstly improved and fully collected, and the identities and management rights of the participants are ensured through system audit; During the cooperation process, the preset nodes in each blockchain system first select the valuable resources needed by the participants or owned by themselves, and use tools to convert the resource data into a format readable by the blockchain; among the shared resources, the preset nodes independently choose to disclose the corresponding data resources to the corresponding participants; at the same time, their identity information is bound to the valuable resource data through information signatures. Finally, the processed valuable resource data will be uploaded to the preset nodes of the blockchain.

4. The digital economy monitoring method based on blockchain technology according to claim 3 is characterized in that: In step 302, after determining the selection of valuable resources, some of the participants begin to obtain the required value. Some of the participants independently choose to access the corresponding blocks in the blockchain system according to their own needs to complete the acquisition of valuable resources after identity verification; in the process of the value resource data demander obtaining resource information, the encryption algorithm is used based on the blockchain system to complete the encrypted transmission of the value resource data between the supply and demand parties.

5. The digital economy monitoring method based on blockchain technology according to claim 4 is characterized in that: The supply and demand parties are the participants who are demanders of valuable resource data and the participants who are data owners of the valuable resource data stored in the corresponding blocks.

6. The digital economy monitoring method based on blockchain technology according to claim 4 is characterized in that: In the process of using encryption algorithms to complete the encrypted transmission of valuable resource data based on the blockchain system: First, the initialization phase is carried out to initialize the blockchain system; then the phase of generating value resource data transmission requests is entered. The value resource data demander generates corresponding ciphertext value resource data transmission requests and regulatory proof information based on the encryption algorithm and regulatory public key of the evidence encryption scheme, thereby hiding the content of the value resource data transmission request, and sending the encrypted ciphertext value resource data transmission request and regulatory proof information to the verification node of the blockchain system.

7. The digital economy monitoring method based on blockchain technology according to claim 6 is characterized in that: In the process of completing the encrypted transmission of value resource data using encryption algorithms based on the blockchain system, the value resource data transmission verification phase is then entered. The regulator of the blockchain system verifies the ciphertext value resource data transmission request and supervision proof information received by the verification node based on the smart contract. If the total number of value resource data demanders is n, and if there are a malicious data demanders in the blockchain system, then the threshold t≤(na), n>a is set. The blockchain verification node can only decrypt k ciphertext value resource data transmission requests when it receives k (t≤k≤n) ciphertext value resource data transmission requests, thereby obtaining the plaintext value resource data transmission request for verification and calculation. At the same time, the regulator verifies the supervision proof information, and the verification node submits the verification or calculation results to the chain; Finally, the regulator uses the regulatory private key to decrypt the ciphertext value resource data transmission request based on the decryption algorithm of the LE encryption method, and completes the value resource data transmission based on the decrypted content. Finally, the regulator also supervises the value resource data transmission process.

8. The digital economy monitoring method based on blockchain technology according to claim 1 is characterized in that: In the process of using encryption algorithms to complete the encrypted transmission of valuable resource data based on the blockchain system: Initialization: input security parameter γ, output public parameter pp; then generate key Keygen, the supervisor inputs public parameter pp, and outputs the data demander's key (p ki ,s ki ) and the supervisory key (p ka ,s ka ); Generation of value resource data transmission request: the value resource data demander inputs the public parameter pp, the value resource data demander public key set V, the message m and the supervisory public key p ka , output ciphertext data transmission request tx; Generation of regulatory proof: The value resource data demander inputs the public parameter pp, message m and regulatory public key p ka , output supervision proof information π; Value resource data transmission request verification: input public parameter pp, ciphertext value resource data transmission request tx, value resource data demander's public key set U and V, where V is the verification set of n value resource data demanders, and U is the verification set of k value resource data demanders. ,and , the supervisor gets the message content m and outputs m; Supervisory information verification: the supervisor inputs the public parameter pp, and the supervisory information and supervision proof information π. If the verification is successful, output 1. The supervisor completes the transmission of the valuable resource data from the participant who is the owner of the valuable resource data to the participant who is the demander of the valuable resource data according to the plain text content in the message content m. If the verification fails, the output is 0, and the valuable resource data will not be transmitted; Supervision of value resource data transmission: input public parameter pp, ciphertext transaction tx and supervision public key p ka , output the message plaintext content m as the regulatory plaintext, and the supervisor determines whether there is an abnormality based on the message plaintext content m and the valuable resource data transmission process.

9. The digital economy monitoring method based on blockchain technology according to claim 1 is characterized in that: In step 303, in the win-win stage of value resources, participants with more resources use the digital economy co-creation platform to share resources and capabilities with participants with fewer resources, and use value resource data and resources to provide support to participants with fewer resources.

10. The digital economy monitoring method based on blockchain technology according to claim 1 is characterized in that: The regulator will encourage participants to join the digital economy co-creation platform through the market, and at the same time supervise the collaborative innovation of the digital economy co-creation platform, improve the blockchain system empowerment system, and supervise the operation status of the digital economy co-creation platform.

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