System for auditing and screening trueness of public content of engineering project

Abstract

The invention discloses a truth auditing and screening system for public content of an engineering project, which relates to the technical field of content truth auditing and comprises a data management unit, the data management unit is used as a data receiver and is used for uniformly storing and managing electronic data with different storage spaces and different formats, and the data management unit is used for storing and screening the electronic data. The system comprises a block chain service unit, a construction participant of an engineering project records a series of activity information with predetermined quality in real time to form a basis for subsequent review, and the block chain service unit is responsible for coordinating data transmission between nodes and modules on a block chain and providing a service function. According to the method, the problems that the authenticity of data is difficult to guarantee, the automation degree is low, specific risks are difficult to recognize and information is difficult to trace in the whole-process auditing of the engineering project can be solved, real-time and accurate recording and updating of the information are realized, the time and the cost of later auditing work are greatly reduced, and the target of online, real-time and efficient auditing is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of content authenticity verification, and specifically to a system for verifying and screening the authenticity of public content of engineering projects. Background Art

[0002] An engineering project is a project carried out with engineering construction as the carrier. As a one-time engineering construction task to be managed, with buildings or structures as the target outputs, it requires a certain amount of funds to be paid, completed in accordance with a certain procedure and within a certain time, and should meet the quality requirements. The public content of engineering projects mainly includes the following aspects: approved service information, approved result information, bidding and tendering information, land expropriation information, major design change information, construction-related information, quality and safety supervision information, and completion-related information. The disclosure of this information helps to ensure the transparency of the project and the public's right to know, promotes the smooth progress of the project and social supervision. However, there are authenticity problems in this public content, which is not conducive to the whole-process construction;

[0003] Problems existing in traditional verification technologies include difficult guarantee of data authenticity, low automation level, difficulty in identifying specific risks, ineffective follow-up rectification and implementation, and difficulty in tracing engineering information. Due to the single verification and screening method, high requirements for engineering projects, long verification time span, and complex project contract structure, problems such as verification lag, poor information reliability, and high verification costs are caused, and the traceability and intelligent verification of engineering project information cannot be achieved. Summary of the Invention

[0004] The purpose of the present invention is to provide a system for verifying and screening the authenticity of public content of engineering projects to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A system for verifying and screening the authenticity of public content of engineering projects, comprising:

[0006] A data management unit, which serves as a data receiver and conducts unified storage management of electronic materials with different storage spaces and formats. The participants in the engineering project record a series of activity information of predetermined quality in real time to form the basis for subsequent review;

[0007] A blockchain service unit, which is responsible for coordinating data transmission between various nodes and modules on the blockchain and providing service functions. Each participant connects to the blockchain as a node, and an effective consensus is reached based on the interaction of the consensus mechanism;

[0008] The audit and screening unit is responsible for transmitting the collected and monitored information data to the data management unit after analysis, helping to find and use the data source, and judging the authenticity of the information based on whether the process audit is passed. If the next process is automatically executed normally, the information is considered to be authentic. Otherwise, an audit warning is generated, indicating that there is an authenticity problem;

[0009] Audit access unit: when receiving an early warning signal indicating an abnormal situation, personnel in the audit access unit trace information based on the unique tracking code on the blockchain, and verify the integrity and authenticity of the information by retrieving the consistency of the records before and after the information stored on the blockchain;

[0010] The transaction unit, as the consensus mechanism of the blockchain service unit, is responsible for ensuring that the distributed database cannot be tampered with throughout the entire cycle. After completing the construction work of project inspection, quality and safety acceptance, transaction operations are carried out.

[0011] Preferably, the data management unit includes a project management module, a real-time recording module and an information extraction module. The project management module uses a consortium blockchain network to manage engineering construction project information. The consortium blockchain network involves construction units, construction units, supervision units and audit units, wherein these construction parties are in the same channel and participate in the construction project throughout the entire process. The real-time recording module establishes a distributed database for real-time recording of a series of activity information of the predetermined quality of the project as a basis for subsequent audits, effectively preventing the generation of false information, and the audit unit is always on the blockchain, paying real-time attention to various specific construction behaviors. When the node of the information extraction module that exits the blockchain network midway is related to the engineering project, the personnel extract the audit information by querying the information records in the distributed database, and transmit the public information of the engineering project to the blockchain service unit in a timely manner through blockchain technology, thereby storing the construction project data required for the audit and providing data to the personnel more conveniently and timely.

[0012] Preferably, the blockchain service unit includes a hardware and software construction module and a node consensus module. The hardware and software construction module uses a storage device, a network consensus device and a data interface to form a hardware part, and the software part is composed of a PC server, a database and a consensus mechanism. When the node consensus module is reviewed during the project, each construction party is connected to the blockchain as a node through the provided network consensus device and data interface, and an effective consensus is reached based on the interaction of the consensus mechanism.

[0013] Preferably, the blockchain service unit further includes a service architecture module, which includes a network layer, a consensus layer, a contract layer, a data layer, and an access layer. The network layer forms a P2P network without a central server. The consensus layer is responsible for reaching a consensus among nodes. The contract layer contains script code, smart contracts, and algorithm mechanisms, and realizes the automation of the review work by means of intelligent analysis techniques. The data layer includes a chain structure, a hash function, and a timestamp, which ensure the immutability of data and the reliability and authenticity of the data and transactions stored in the blockchain. The access layer is responsible for providing a user-friendly interface to record, query, and authorize access to information.

[0014] Preferably, the review and screening unit includes an Internet of Things management module, a condition trigger module, and an intelligent retrieval module. The Internet of Things management module includes RFID tags, sensors, actuators, and terminal monitoring devices, which are used to collect engineering data and environmental information, monitor the input and consumption of engineering projects in real time, and transmit the collected and monitored information data to the data management unit after analysis to help personnel find and use data sources. The condition trigger module enables the Internet of Things management module to interact with the data management unit through the network layer of the blockchain service unit to store the data obtained by the sensors and provide data services as a trigger condition. The intelligent retrieval module conducts multi-faceted and in-depth mining of the relevance between data based on the complete clue chain provided by the data management unit from proposal to quality acceptance, so as to realize intelligent analysis and obtain the review result, and convert the data information and procedures involved in the review analysis into structured data that can be recognized and read by a computer.

[0015] Preferably, the review and screening unit further includes a review warning module and a smart contract module. The review warning module compares and analyzes the information collected and the information structure stored in the database after conversion. When the result reaches the previously set warning risk threshold, an alarm will be triggered, and personnel will receive the abnormal data and information transmitted by the system in real time, ultimately achieving the purpose of preventive warning. The smart contract module is a program deployed and stored in the blockchain. While storing data, it can implement business logic. When the data input into the blockchain meets the trigger condition of the condition trigger module, it will be automatically and independently executed through the contract layer of the service architecture module. When checking whether the handling of unqualified construction process quality complies with the regulations, the handling procedures and requirements for unqualified acceptance in the smart contract module are clearly defined with reference to the predetermined acceptance standards in advance. When the construction unit completes the repair and uploads the acceptance record, the smart contract module can be triggered. If it passes, the next process will be automatically carried out; otherwise, a review warning will be formed and the review warning module will be triggered.

[0016] Preferably, the audit access unit includes an information traceability module and an audit verification module. The information traceability module, as a carrier for human-computer interaction, deploys an asymmetric encryption access mechanism for public and private keys. The public key is used for identification and encryption, and the private key is used for identity authentication and decryption. When an abnormal situation occurs in a project with a warning signal, personnel can achieve information traceability based on the unique tracking code on the blockchain. The audit verification module verifies the integrity and authenticity of information by retrieving the consistency of the information records stored on the blockchain before and after. Finally, the audit results will be informed to each participating party in the form of broadcasting to ensure the project quality.

[0017] Preferably, the audit access unit further includes a data efficient acquisition module. The data efficient acquisition module accesses and connects to the review system through the blockchain technology. While personnel ensure the review quality, they can also directly and efficiently obtain the required audit basis, improving the level and rate of the audit.

[0018] Preferably, the matter transaction unit includes a matter submission module and an effective transaction module. The matter submission module enables the construction unit to submit each transaction matter to the construction unit node, the audit unit node, and the construction unit node through the client application. The transaction matter includes the construction period, quality, and safety information of the project inspection lot derived from the publicly available content. Each node checks the authenticity of the transaction matter and gives feedback. The effective transaction module sends the feedback content of each node and the digital signature to the matter submitter. After each node confirms the information format and content submitted, the effectiveness of the transaction is significantly improved, providing a reliable and traceable audit basis.

[0019] Preferably, the matter transaction unit further includes a node broadcast module and a matter verification module. After the initial transaction matter proposal with the digital signatures of each node is sent back to the client application, the construction unit verifies the digital signature on the client application and packages it together with the transaction matter information as a formal transaction matter and sends it to the sorting node. The system sorts according to the hash algorithm, stamps the time, and then packages and uploads the transaction matter to the block. Then, the generated transaction block is broadcast to each node so that each node can quickly verify the transaction matter. The matter verification module updates and stores each node in real time in the distributed database. If any node or multiple nodes on the chain do not pass the verification of the relevant transaction matter, it indicates that the recording result is incorrect and there is a authenticity problem, and it is necessary to re-check with the matter participants.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The present invention constructs a blockchain-based whole-process review and screening system composed of a data management unit, a blockchain service unit, a review and screening unit, a review access unit, and a matter transaction unit, which can solve the problems existing in the whole-process review of engineering projects, such as difficult to guarantee the authenticity of materials, low automation level, difficult to identify specific risks, and difficult to trace information. It not only effectively solves the problems of fragmented construction project information, unsmooth data exchange and easy tampering, but also realizes the traceability of review basis in the time dimension. Through the node consensus module, not only can efficient information dissemination and data exchange be achieved, and real-time and accurate recording and updating of information be realized, but also the time and cost of later review work can be greatly reduced, achieving the goal of online real-time and efficient review. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall system process provided by an embodiment of the present invention;

[0023] Figure 2 It is a block diagram of the data management unit provided by an embodiment of the present invention;

[0024] Figure 3 It is a block diagram of the blockchain service unit provided by an embodiment of the present invention;

[0025] Figure 4 It is a block diagram of the review and screening unit provided by an embodiment of the present invention;

[0026] Figure 5 It is a block diagram of the review access unit provided by an embodiment of the present invention;

[0027] Figure 6 It is a block diagram of the matter transaction unit provided by an embodiment of the present invention.

[0028] In the figure: 1. Data management unit; 101. Project management module; 102. Real-time recording module; 103. Information extraction module; 2. Blockchain service unit; 201. Software and hardware construction module; 202. Node consensus module; 203. Service architecture module; 3. Review and screening unit; 301. Internet of Things management module; 302. Condition trigger module; 303. Intelligent retrieval module; 304. Review warning module; 305. Smart contract module; 4. Review access unit; 401. Information traceability module; 402. Review verification module; 403. Efficient data acquisition module; 5. Matter transaction unit; 501. Matter submission module; 502. Effective transaction module; 503. Node broadcast module; 504. Matter verification module. DETAILED DESCRIPTION OF THE INVENTION

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 6 , the present invention provides a technical solution: a system for auditing and screening the authenticity of public content of engineering projects, including:

[0031] A data management unit 1, which serves as a data receiver to uniformly store and manage electronic materials with different storage spaces and formats. The participants in the engineering project record a series of activity information of a predetermined quality in real time to form the basis for subsequent review.

[0032] A blockchain service unit 2, which is responsible for coordinating data transmission between nodes and modules on the blockchain and providing service functions. Each participant connects to the blockchain as a node, and an effective consensus is reached through the interaction based on the consensus mechanism.

[0033] An audit and screening unit 3, which is responsible for analyzing the collected and monitored information data and transmitting it to the data management unit 1, helping to find and use data sources, and judging the authenticity of the information according to whether the process audit passes. If the automatic execution proceeds normally to the next process, the information is considered true; otherwise, an audit warning is formed, indicating that there is a problem with the authenticity.

[0034] An audit access unit 4. When an abnormal situation occurs in the project with a warning signal received, personnel can achieve information traceability based on the unique tracking code on the blockchain, and verify the integrity and authenticity of the information by retrieving the consistency of the information records before and after stored on the blockchain.

[0035] An event transaction unit 5, which serves as the consensus mechanism of the blockchain service unit 2 and is responsible for ensuring that the distributed database is immutable throughout the cycle. After completing the construction work of project inspection, quality and safety acceptance, transaction matters operations are carried out.

[0036] The data management unit 1 includes a project management module 101. The project management module uses the consortium blockchain network to manage the information of engineering construction projects. The consortium blockchain network involves participants such as the construction unit, the construction company, the supervision unit, and the audit unit. Among them, these participants are in the same channel and participate in the construction project throughout the process.

[0037] The data management unit 1 also includes a real-time recording module 102. The real-time recording module 102 establishes a distributed database for real-time recording of a series of activity information of the predetermined quality of the project, which serves as a basis for later review and effectively prevents the generation of false information. The review unit is always on the blockchain and pays real-time attention to various specific construction behaviors;

[0038] The data management unit 1 also includes an information extraction module 103. When the node of the information extraction module 103 exiting the blockchain network midway is associated with the engineering project, the personnel extract the audit information by querying the information records in the distributed database, and timely transmit the public information of the engineering project to the blockchain service unit 2 through the blockchain technology, so as to store the construction project data required for the audit, and provide data to the personnel more conveniently and timely, which not only effectively solves the problems of fragmentation of construction project information, poor data exchange and easy tampering, but also realizes the traceability of the audit basis in the time dimension;

[0039] The blockchain service unit 2 includes a software and hardware construction module 201, which uses a storage device, a network consensus device, and a data interface to form a hardware part, and a software part composed of a PC server, a database, and a consensus mechanism;

[0040] The blockchain service unit 2 also includes a node consensus module 202. When the project is reviewed, each construction party connects to the blockchain as a node through the provided network consensus equipment and data interface, and reaches an effective consensus based on the interaction of the consensus mechanism;

[0041] The blockchain service unit 2 also includes a service architecture module 203, which includes a network layer, a consensus layer, a contract layer, a data layer and an access layer, wherein the network layer forms a P2P network without a central server, the consensus layer is responsible for reaching a consensus between nodes, the contract layer includes script codes, smart contracts and algorithm mechanisms, and uses intelligent analysis technology to automate the audit work, the data layer includes a chain structure, a hash function and a timestamp to ensure that the data cannot be tampered with, and to ensure the reliability and authenticity of the data and transactions stored in the blockchain, and the access layer is responsible for providing a user-friendly interface to record, query and authorize access to information;

[0042] The audit screening unit 3 includes an Internet of Things management module 301, which includes RFID tags, sensors, actuators and terminal monitoring equipment to collect engineering data and environmental information, monitor the input and consumption of engineering projects in real time, and transmit the collected and monitored information data to the data management unit 1 after analysis, so as to help personnel find and use data sources;

[0043] The review and screening unit 3 further includes a condition trigger module 302. The condition trigger module 302 enables the Internet of Things management module 301 to interact with the data management unit 1 through the network layer of the blockchain service unit 2 to store the data obtained by the sensors and provide data services as a trigger condition;

[0044] The review and screening unit 3 further includes an intelligent retrieval module 303. The intelligent retrieval module 303 conducts multi-faceted and in-depth mining of the relevance between data based on the complete clue chain provided by the data management unit 1 from submission to quality acceptance, so as to achieve intelligent analysis and obtain the review result, and convert the data information and procedures involved in the review analysis into structured data that can be recognized and read by a computer;

[0045] The relevance between data includes the correlation variance algorithm, specifically:

[0046]

[0047]

[0048] S = |S 1 -S 2 |;

[0049] Among them, B represents the big data time series feature expression, ε and γ respectively represent two unequal time series parameters, ε ≠ γ, b ε represents the dimension space definition parameter under the parameter ε, b γ represents the dimension space definition parameter under the parameter γ, m 1 , m 2 ,..., m n represents n relevance information parameters, and they are all unequal. S 1 and S 2 respectively represent the standard feature parameters, represents the big data mapping parameter under S 1 , represents the big data mapping parameter under S 2 , β, respectively represent two unequal big data fitting parameters. S represents the correlation variance solution result, and |·| represents the modulus operation.

[0050] The review and screening unit 3 further includes a review warning module 304. The review warning module 304 compares and analyzes the information collected and the information structure stored in the database after conversion. When the obtained result reaches the previously set warning risk warning line, the alarm will be triggered, and the personnel will receive the abnormal data and information situation transmitted by the system in real time, and finally achieve the purpose of prevention and warning;

[0051] The review and screening unit 3 further includes a smart contract module 305. The smart contract module 305 is a program deployed and stored in the blockchain. While storing data, it can implement business logic. When the data input into the blockchain meets the triggering conditions of the condition triggering module 302, it will be automatically and independently executed through the contract layer of the service architecture module 203. When it comes to whether the handling of unqualified construction process quality during the review complies with the regulations, the handling procedures and requirements for unqualified acceptance in the smart contract module 305 are clearly defined in advance with reference to the predetermined acceptance standards. When the construction unit completes the repair and uploads the acceptance record, the smart contract module 305 can be triggered. If it passes, the next process will be automatically carried out; otherwise, a review warning will be formed to trigger the review warning module 304;

[0052] The review access unit 4 includes an information traceability module 401. The information traceability module 401 serves as a carrier for human-computer interaction and deploys an asymmetric encryption access mechanism for public and private keys. The public key is used for identification and encryption, and the private key is used for identity verification and decryption. When a warning signal indicates an abnormal situation in the project, personnel can achieve information traceability based on the unique tracking code on the blockchain;

[0053] The review access unit 4 further includes a review verification module 402. The review verification module 402 verifies the integrity and authenticity of information by retrieving the consistency of the information records stored on the blockchain before and after. Finally, the review results will be informed to each participating party in the form of broadcasting to ensure the project quality;

[0054] The review access unit 4 further includes a data efficient acquisition module 403. The data efficient acquisition module 403 uses blockchain technology to access and connect to the entrance of the review system. While personnel ensure the review quality, they can also directly and efficiently obtain the required review basis, improving the review level and rate;

[0055] The matter transaction unit 5 includes a matter submission module 501. The matter submission module 501 enables the construction unit to submit each transaction matter to the construction unit node, the review unit node, and the construction unit node through the client application program. The transaction matters include the construction period, quality, and safety information of the project inspection lot exported from the public content. Each node checks the authenticity of the transaction matters and gives feedback;

[0056] The matter transaction unit 5 further includes an effective transaction module 502. The effective transaction module 502 sends the feedback content of each node and the digital signature to the matter submitter. After each node confirms the information format and content submitted, the effectiveness of the transaction is significantly improved, providing a reliable and traceable review basis;

[0057] The matter transaction unit 5 further includes a node broadcast module 503. After the initial transaction matter proposal with the digital signatures of each node is sent back to the client application, the construction unit verifies the digital signature on the client application and packages it together with the transaction matter information into a formal transaction matter, and sends it to the sorting node. The system sorts according to the hash algorithm, stamps the time, and then packages and uploads the transaction matter to the block. Then, the generated transaction block is broadcast to each node so that each node can quickly verify the transaction matter;

[0058] The matter transaction unit 5 further includes a matter verification module 504. The matter verification module 504 updates and stores each node in the distributed database in real time. If any node or multiple nodes on the chain do not pass the verification of the relevant transaction matter, it indicates that the recording result is incorrect and there is a authenticity problem, and it is necessary to re-check with the matter participants.

[0059] Working principle: When the present invention is used, the data management unit 1 uses the consortium blockchain network to manage the engineering construction project information, and records a series of activity information of the predetermined quality of the project in real time as the basis for later review. Personnel extract the review information by querying the information records in the distributed database, and transmit the public information of the engineering project to the blockchain service unit 2 in time through the blockchain technology, so as to store the construction project data required for review, and more conveniently and timely provide data for personnel. Through the blockchain service unit 2, each participating party connects to the blockchain as a node through the provided network consensus device and data interface, and an effective consensus is reached based on the interaction of the consensus mechanism. Among them, the consensus mechanism performs transaction matter operations through the matter transaction unit 5. The matter transaction unit 5 enables the construction unit to submit each transaction matter to the construction unit node, the review unit node, and the construction unit node through the client application through the matter submission module 501. Each node checks the authenticity of the transaction matter and gives feedback. The content and digital signature feedback by each node are sent to the matter submitter through the effective transaction module 502. After each node confirms the information format and content submitted, the effectiveness of the transaction is significantly improved, providing a reliable and traceable review basis. After the initial transaction matter proposal with the digital signatures of each node is sent back to the client application, the construction unit verifies the digital signature on the client application and packages it together with the transaction matter information into a formal transaction matter, and sends it to the sorting node. The system sorts according to the hash algorithm, stamps the time, and then packages and uploads the transaction matter to the block. Then, the generated transaction block is broadcast to each node so that each node can quickly verify the transaction matter;

[0060] The review and screening unit 3 is responsible for transmitting the collected and monitored information data to the data management unit 1 after analysis, helping to search for and use data sources, and judging the authenticity of the data according to whether the process review passes. If the automatic execution proceeds normally to the next process, the data is authentic; otherwise, a review warning is formed, indicating a problem with the authenticity. The collected information is compared and analyzed after being converted with the information structure stored in the database through the review warning module 304. When the obtained result reaches the previously set warning risk warning line, an alarm will be triggered, and the personnel will receive the abnormal data and information passed by the system in real time, ultimately achieving the purpose of prevention and warning. When an abnormal situation occurs in the warning signal item received by the review access unit 4, the personnel can trace the information based on the unique tracking code on the blockchain, and verify the integrity and authenticity of the information by retrieving the consistency of the information records stored on the blockchain before and after.

[0061] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A system for verifying and screening the authenticity of public content of engineering projects, characterized in that: include: A data management unit (1), as a data receiver, performs unified storage management on electronic data with different storage spaces and formats, and the construction parties of the engineering project record a series of activity information of predetermined quality in real time, forming a basis for subsequent review; A blockchain service unit (2), which is responsible for coordinating data transmission between nodes and modules on the blockchain and providing service functions. Each participating party is connected to the blockchain as a node and reaches an effective consensus based on the interaction of the consensus mechanism; The audit screening unit (3) is responsible for transmitting the collected and monitored information data to the data management unit (1) after analysis, helping to find and use the data source, and judging the authenticity of the information based on whether the process audit is passed. If the next process is automatically executed normally, the information is considered to be authentic. Otherwise, an audit warning is generated, indicating that there is an authenticity problem; An audit access unit (4), wherein when receiving an early warning signal indicating an abnormal situation in a project, personnel of the audit access unit (4) trace information based on a unique tracking code on the blockchain, and verify the integrity and authenticity of the information by retrieving the consistency of the previous and subsequent records of the information stored on the blockchain; The transaction unit (5) serves as the consensus mechanism of the blockchain service unit (2), and is responsible for ensuring that the distributed database cannot be tampered with throughout the entire cycle. After completing the construction work of project inspection, quality and safety acceptance, transaction operations are carried out.

2. A system for verifying and screening the authenticity of public content of an engineering project according to claim 1, characterized in that: The data management unit (1) includes a project management module (101), which uses a consortium blockchain network to manage engineering construction project information. The consortium blockchain network involves construction units, construction units, supervision units and audit units, wherein these construction parties are in the same channel and participate in the construction project throughout the entire process.

3. A system for verifying and screening the authenticity of public content of an engineering project according to claim 2, characterized in that: The data management unit (1) also includes a real-time recording module (102), which establishes a distributed database for real-time recording of a series of activity information of the predetermined quality of the project, which serves as a basis for subsequent review and effectively prevents the generation of false information. In addition, the review unit is always on the blockchain and pays real-time attention to each specific construction behavior.

4. A system for verifying and screening the authenticity of public content of an engineering project according to claim 3, characterized in that: The data management unit (1) also includes an information extraction module (103). When the node of the information extraction module (103) exits the blockchain network midway and is associated with the engineering project, the personnel extract the audit information by querying the information records in the distributed database, and transmits the public information of the engineering project to the blockchain service unit (2) in a timely manner through the blockchain technology, thereby storing the construction project data required for the audit and providing data to the personnel in a more convenient and timely manner.

5. The authenticity review and screening system for public content of engineering projects according to claim 1 is characterized by: The blockchain service unit (2) comprises a software and hardware construction module (201), wherein the software and hardware construction module (201) uses a storage device, a network consensus device and a data interface to form a hardware part, and the software part consists of a PC server, a database and a consensus mechanism.

6. A system for verifying and screening the authenticity of public content of an engineering project according to claim 5, characterized in that: The blockchain service unit (2) also includes a node consensus module (202). When the project is reviewed, each construction party is connected to the blockchain as a node through the provided network consensus equipment and data interface, and an effective consensus is reached based on the interaction of the consensus mechanism.

7. A system for verifying and screening the authenticity of public content of an engineering project according to claim 6, characterized in that: The blockchain service unit (2) also includes a service architecture module (203), which includes a network layer, a consensus layer and a contract layer, wherein the network layer forms a P2P network without a central server, the consensus layer is responsible for reaching a consensus between nodes, and the contract layer contains script codes, smart contracts and algorithm mechanisms, and uses intelligent analysis technology to achieve automation of audit work.

8. A system for verifying and screening the authenticity of public content of an engineering project according to claim 7, characterized in that: The service architecture module (203) also includes a data layer and an access layer. The data layer includes a chain structure, a hash function and a timestamp to ensure that the data cannot be tampered with and to ensure the reliability and authenticity of the data and transactions stored in the blockchain. The access layer is responsible for providing a user-friendly interface to record, query and authorize access to information.

9. The authenticity review and screening system for public content of engineering projects according to claim 1, characterized in that: The audit screening unit (3) includes an Internet of Things management module (301), which includes RFID tags, sensors, actuators and terminal monitoring equipment, which are used to collect engineering data and environmental information, monitor the investment and consumption of engineering projects in real time, and transmit the collected and monitored information data to the data management unit (1) after analysis, so as to help personnel find and use data sources.

10. A system for verifying and screening the authenticity of public content of engineering projects according to claim 9, characterized in that: The audit screening unit (3) also includes a conditional trigger module (302), which enables the Internet of Things management module (301) to interact with the data management unit (1) with the help of the network layer of the blockchain service unit (2) to store data obtained by the sensor and provide data services as a trigger condition.

11. A system for verifying and screening the authenticity of public content of an engineering project according to claim 10, characterized in that: The audit screening unit (3) also includes an intelligent retrieval module (303). Based on the complete clue chain from proposal to quality acceptance provided by the data management unit (1), the intelligent retrieval module (303) conducts multi-faceted and in-depth mining of the correlation between data, thereby realizing intelligent analysis and obtaining audit results, and converting the data information and programs involved in the audit analysis into structured data that can be recognized and read by a computer.

12. A system for verifying and screening the authenticity of public content of engineering projects according to claim 11, characterized in that: The audit screening unit (3) also includes an audit warning module (304), which converts the collected information and the information structure stored in the database for comparative analysis. When the result is critical to the previously set warning risk warning line, the alarm will be triggered, and the personnel will receive the abnormal data and information transmitted by the system in real time, ultimately achieving the purpose of preventive warning.

13. A system for verifying and screening the authenticity of public content of engineering projects according to claim 12, characterized in that: The audit screening unit (3) also includes a smart contract module (305). The smart contract module (305) is a program deployed and stored in the blockchain. It can implement business logic while storing data. When the data input into the blockchain meets the trigger condition of the conditional trigger module (302), it will be automatically and independently executed through the contract layer of the service architecture module (203). When the processing of unqualified construction process quality is reviewed to see whether it complies with the regulations, the processing procedures and requirements for unqualified acceptance in the smart contract module (305) are clarified in advance according to the predetermined acceptance standards. When the construction unit completes the rework and uploads the acceptance record, the smart contract module (305) can be triggered. If it passes, the next process will be automatically carried out. Otherwise, an audit warning will be generated, triggering the audit warning module (304).

14. The authenticity review and screening system for public content of engineering projects according to claim 1, characterized in that: The audit access unit (4) includes an information tracing module (401). The information tracing module (401) serves as a carrier of human-computer interaction and deploys a public key and private key asymmetric encryption access mechanism. The public key is used for identification and encryption, and the private key is used for identity authentication and decryption. When an abnormal situation occurs in the project when an early warning signal is received, personnel can realize information tracing based on the unique tracking code on the blockchain.

15. A system for verifying and screening the authenticity of public content of an engineering project according to claim 14, characterized in that: The audit access unit (4) also includes an audit verification module (402), which verifies the integrity and authenticity of the information by retrieving the consistency of the records before and after the information is stored on the blockchain. Finally, the results of the audit will be notified to each participating party in the form of broadcasting to ensure the quality of the project.

16. A system for verifying and screening the authenticity of public content of an engineering project according to claim 15, characterized in that: The audit access unit (4) also includes a data efficient acquisition module (403). The data efficient acquisition module (403) uses blockchain technology to access and connect to the entry-level audit system. While ensuring the quality of the audit, personnel can also directly and efficiently obtain the required audit basis, thereby improving the level and speed of the audit.

17. The authenticity review and screening system for public content of engineering projects according to claim 1, characterized in that: The transaction item unit (5) includes a transaction item submission module (501), which enables the construction unit to submit various transaction items to the construction unit node, the review unit node and the construction unit node through the client application. The transaction items include the construction period, quality and safety information of the project inspection batch derived from the public content. Each node checks the authenticity of the transaction items and provides feedback.

18. A system for verifying and screening the authenticity of public content of an engineering project according to claim 17, characterized in that: The transaction unit (5) also includes a valid transaction module (502), which sends the feedback content and digital signature of each node to the person who submitted the transaction. After each node confirms the format and content of the submitted information, the validity of the transaction is significantly improved, providing a reliable and traceable audit basis.

19. A system for verifying and screening the authenticity of public content of an engineering project according to claim 18, characterized in that: The transaction unit (5) further comprises a node broadcast module (503). After the initial transaction proposal with the digital signature of each node is sent back to the client application, the construction unit verifies the digital signature on the client application, and packages it together with the transaction information as a formal transaction, and sends it to the sorting node. The system sorts the transaction according to the hash algorithm, stamps it with a timestamp, and then packages and uploads the transaction into a block. Then, the generated transaction block is broadcast to each node so that each node can quickly verify the transaction.

20. A system for verifying and screening the authenticity of public content of an engineering project according to claim 19, characterized in that: The transaction unit (5) also includes a transaction verification module (504), which updates each node in real time and stores it in a distributed database. If any node or multiple nodes on the chain fail to verify the relevant transaction, it indicates that the recording result is wrong and there is an authenticity problem, which needs to be re-reviewed with the event participants.

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