24results about How to "Realize immutable" patented technology

The invention discloses a transparent logistics supply chain tracing management system fused with a block chain technology. The transparent logistics supply chain tracing management system comprises a data acquisition module, a block chain storage module, an intelligent contract module, a user interface module and a data analysis module, the data acquisition module is responsible for collecting real-time data of each link of a supply chain and transmitting the data to the block chain storage module; the block chain storage module uses SHA-256 and ECDSA algorithms to ensure the security and authenticity of the data; according to the method, the blockchain technology is utilized, data of all links of the supply chain is subjected to chaining storage, the data are open, transparent and non-tampering, and the credibility of the data is enhanced; through an SHA-256 Hash algorithm and an ECDSA signature algorithm, the security and integrity of the data in the transmission and storage process are ensured, and the data are prevented from being tampered or forged; and transactions and operations in the supply chain are automatically executed through the intelligent contract module according to a preset rule, so that human intervention is reduced, and the automation level and the operation efficiency of the system are improved.

The invention relates to the field of calculation methods, in particular to a cross-domain data compliance mutual trust calculation method, which comprises the following steps: S1, cross-domain data access control based on a block chain; s2, cross-domain organization key uplink; s3, cross-domain data compliance distinguishing; s4, constructing a cross-domain data exchange model; s5, cross-domain data are linked by using a block chain; s6, performing homomorphic operation on cross-domain data; s7, the homomorphic operation result is linked; and S8, obtaining a homomorphic operation result. According to the method, on the premise of protection requirements of laws and regulations of two places on related data, a cross-domain data compliance mutual trust calculation method is constructed to realize cross-regional data processing. An alliance block chain is utilized to construct a cross-domain organization mutual trust mechanism and realize access control, a homomorphic encryption method is utilized to realize protection of data security, a homomorphic operation method is utilized to realize'availability and invisibility 'of cross-domain data processing, and a data local cloud computing facility is utilized to solve the problems of homomorphic operation computing power and storage consumption.

The invention discloses a bidding and tendering business enterprise qualification credit information authenticity verification method and device, and relates to the technical field of information verification, and the method comprises the steps: obtaining a verification webpage, obtaining a website digital certificate chain, checking a digital signature and a validity period step by step, and obtaining website digital certificate authenticity verification result data; obtaining the final modification time, the website updating frequency and the timestamp information, and combining the terminal time to obtain webpage timestamp verification result data; obtaining complete network information at a target moment and network information at a polling moment, and performing hash value comparison to obtain network information carrier integrity verification result data; and determining webpage authenticity verification result data according to the website digital certificate authenticity verification result data, the webpage timestamp verification result data and the network information carrier integrity verification result data, and uploading the storage content data for storage. The authenticity identification of the webpage is realized, the stored content data cannot be tampered, and disputes or objection can be checked and traced.

The invention relates to an industrial mechanism model credible management method and system based on a block chain, and specifically relates to the technical field of industrial mechanism model management. An industrial mechanism model credible management system based on a block chain comprises an alliance block chain module used for storing industrial mechanism model data and states; the intelligent contract module is used for realizing an execution rule and business logic of the industrial mechanism model and defining a synchronization rule of industrial mechanism model data; the identification code distribution module is used for distributing a unique identification code for the industrial mechanism model data; the digital signature module is used for distributing and verifying identities of participants; and the identification code authentication module is used for authenticating the identification code of the industrial mechanism model data. According to the invention, credible management is carried out on the industrial mechanism model through the identification analysis technology and the block chain technology, traceability and non-tampering of the industrial mechanism model data are realized, and credibility and security of the industrial mechanism model are improved.

The present application relates to livestock traceability technical field, specifically for livestock meat slaughtering, cutting and packaging traceability method and system based on internet, the method comprises: collecting quarantine information of livestock individual, obtaining initial traceability data; according to initial traceability data, determine the slaughter batch code, and the initial traceability data source is bound with the slaughter batch code, and the slaughter credible data package is obtained; based on the slaughter batch code, the cutting operation process information of livestock individual is tracked and filed in real time, and the cutting link data chain is obtained; based on the cutting link data chain, the multi-dimensional quality of livestock individual is judged, and the comprehensive quality index is obtained; based on the comprehensive quality index, the intelligent matching planning of meat product is carried out, and the packaging batch planning is obtained; based on the packaging batch planning, the livestock individual is coded and identified, and the product traceability code is obtained; the present application can improve the efficiency of livestock meat slaughtering, cutting and packaging traceability based on internet.

The invention relates to the technical field of security control, in particular to a blockchain-based supervisible digital collection auction method, which comprises a registration step, a release step, an auction step and a disclosure step, in the registration step, a seller client and a bidder client generate a DID document and send the DID document to a supervision client; the supervision client verifies the identity information in the DID document and then signs the identity information; in the release step, an auction system verifies a first verifiable credential sent by a seller client, and if the verification is passed, complete auction information is generated, signed and put on a block chain; and in the auction step, the auction system verifies a second verifiable credential sent by the bidder client, and if the verification is not passed, the auction process is ended. According to the method, the block chain, the DID, the traceable one-time address and other technologies are combined, the supervision is realized, the malicious auction behavior is prevented, and the security is improved.

The application discloses a transaction system from a farm to a sales terminal, relates to the technical field of agricultural product supply chain management and electronic commerce, and comprises a breeding end data acquisition unit which is configured to collect and upload breeding whole-process data including at least individual animal identity, growth environment parameters, feed input information, disease prevention records and weight monitoring data in the farm in real time. The application realizes that the whole-chain data is unforgeable from the breeding source to the sales terminal by uploading the breeding whole-process data collected by the Internet of Things to the block chain for trusted storage. The transaction efficiency is improved and the performance risk is reduced by automatically executing transaction matching, fund transfer and logistics triggering through the smart contract. The product transportation quality is ensured and the transparent traceability experience is provided for consumers by integrating cold chain monitoring data and terminal traceability query.

The embodiment of the present application provides a resource control method, device, electronic device and storage medium, which relates to the field of communication technology and is applied to a management platform in a management area cluster, each management area is a node in a blockchain system, and the method includes: receiving a resource application instruction sent by a first business component in the management area cluster, the resource application instruction includes a first address and a first input parameter; calling a first smart contract, and returning a first identifier corresponding to the first input parameter to the first business component when the first input parameter is queried in the database; calling a second smart contract, and determining the owner of the first resource from the first business component and the second business component as the current owner according to the priority of the business component. This solution can solve the problem of network operation failure caused by the business component arbitrarily modifying the key attribute information of the resource, which brings catastrophic losses to users.

The invention discloses a natural person identity encryption real-name authentication method and system, and relates to the field of identity and data security. The method is based on a'natural person-encryption terminal-authentication server 'closed-loop encryption architecture, an identity identifier capable of directly recognizing a natural person is not collected, and the core comprises five steps of information collection, authentication initiation, identity authentication, dynamic identity password generation, closed-loop verification and result synchronization. The system adopts a three-level distributed architecture and is composed of an encryption terminal and an authentication server, and the encryption terminal and the authentication server cooperate to achieve secret key fragmentation management, encryption communication and auditing tracing. According to the method, the principle of minimum necessary collection is followed, the national secret algorithm, secret key fragment storage and block chain evidence storage technology are combined, identity authentication is unforgeable, uncounterfeitable and traceable, sensitive information leakage is eradicated from the source, compliance cost is reduced, the method is adaptive to multi-field and multi-terminal scenes, related laws and regulations are met, and high safety and practicability are achieved.

The invention discloses a data copy management method and system based on a block chain, and belongs to the technical field of data copy management, and the method comprises the steps: slicing source data, creating data fragments, encrypting the data fragments, and distributing the data fragments to different storage nodes according to a data positioning algorithm; calculating a hash value of the data fragment, adding the hash value into metadata, and writing the metadata and the hash value into a block chain account book; according to the data copy management method and system based on the block chain, the problems of privacy disclosure, data loss and non-traceability of an original data copy system are broken through, the block chain technology is combined, the sliced metadata is chained, privacy protection, non-tampering and traceability of the data are achieved, and the data copy management method and system based on the national cryptographic algorithm and domestic software and hardware are provided. And complete autonomous controllability of the core module is realized.

The present invention relates to a blockchain-based ship logbook storage system, the system is built on a blockchain operating environment with ship networking, block propagation protocol and relationship network as network architecture; wherein the ship networking is used to support the transmission of application layer data between ships in a point-to-point or broadcast notification manner, the point being the ship in the ship networking; the digital identity of the ship and the crew is authenticated by a ship digital certificate and a crew digital certificate; the ship and the crew sign the information by the private key corresponding to the certificate, and the node in the ship networking verifies the authenticity and integrity of the information by the public key corresponding to the certificate; the block propagation protocol is established on the ship networking using blockchain, and the block propagation protocol is used to forward and propagate the ship logbook between ships in the form of blocks. The present invention ensures the authenticity and reliability of IoS information exchange, and realizes the non-tamperability and traceability of the ship logbook.

The application belongs to the technical field of digital agriculture, and particularly relates to a blockchain traceability data management platform for digital agriculture, wherein the system comprises an agricultural product supply chain informatization module, a trust value quantification module, a two-dimensional code generation module, a local two-dimensional anti-fraud verification module and a traceability query module. The scheme constructs a distributed blockchain ledger network suitable for the agricultural product supply chain, allocates unique on-chain identity and permission to each link participant, generates a basic two-dimensional code bearing core data through a two-dimensional code generation library, triggers a smart contract to calculate a trust value in real time and uploads the trust value to the chain during traceability query, calculates a local hash value by extracting an on-chain identity embedded in a two-dimensional code to be detected, and compares the local hash value with a preset authorization list to complete legality verification, realizes real-time two-dimensional anti-fraud verification of the two-dimensional code without network dependence, can accurately trace and immediately intercept a counterfeit behavior, and provides a full-process anti-counterfeiting and traceable trust guarantee for agricultural product traceability.

The invention discloses a fund seal full-process online management and control tool based on software and hardware integration, relates to the technical field of seal management and control, and aims to solve the technical problem that existing fund seal management and control lacks software and hardware integration full-process linkage and causes high-amount fund payment safety and compliance risks. The hardware terminal layer is in communication connection with the online management and control platform layer through an encrypted channel; the hardware terminal layer integrates a risk prediction processing module and a seal management and control execution module, and the online management and control platform layer deploys a risk data integration module and a linkage management and control engine; the risk data integration module collects multi-dimensional risk data and transmits the multi-dimensional risk data to the hardware terminal layer, the risk prediction processing module analyzes and predicts the data to obtain a potential risk level, and the linkage management and control engine generates a management and control instruction according to the risk level and issues the management and control instruction to the seal management and control execution module. The method has the advantages that software and hardware are integrated, whole-process linkage is achieved, and high-amount fund payment safety and compliance are guaranteed.

The invention discloses an automatic order processing method and system in a merchant management platform, and relates to the technical field of block chain smart contracts. The method comprises the following steps: adding an order processing module in a merchant management platform, wherein the order processing module provides a user interaction interface for a merchant and a buyer at the same time; and the order processing module communicates with the smart contract of the block chain through the user interaction interface to execute order operation. The invention aims to utilize the characteristics of detrust, collective maintenance, non-tampering of data on the chain and the like of the block chain technology to ensure that merchants and buyers in the platform process all information of orders through the order processing module to be consistent, and realize non-tampering of transaction data. Therefore, order abnormity caused by bifurcation or confrontation of buyers and sellers in the platform is finally reduced, the order processing module carries out automatic operation based on the block chain smart contract, platform workers are prevented from being added, the labor cost of system operation is reduced, and automatic order operation of merchants is realized.

The invention relates to the technical field of artificial intelligence, and discloses an agent content traceability method and device, computer equipment and a storage medium, and the method comprises the steps: constructing a dynamic credible knowledge graph with a version evolution record and reference relationship commitment through the Hash of knowledge block content and the uplink of metadata; when an agent generates a conclusion, recording a knowledge block hash and reasoning step referenced by the agent, and generating a knowledge fingerprint representing a complete reasoning path; and constructing zero-knowledge reasoning proof based on the knowledge fingerprints, so that an auditor can verify the deduction process and credibility of a conclusion under the condition of not accessing original knowledge contents and reasoning internal states. The method can be applied to content traceability scenes of financial science and technology and medical health, and whole-course traceability, non-tampering and privacy protection of the intelligent agent content are realized.

The invention discloses a database log auditing method based on a block chain in combination with an IPFS. Traditional database log auditing depends on a centralized database, and potential safety hazards exist. According to the method, the hash value of the log data is recorded on the block chain by using the decentralization and tamper-resistant characteristics of the block chain, so that the integrity and traceability of the data are ensured. The content addressing and duplicate elimination technology of the IPFS is used for storing the log data, so that the storage burden of the block chain is effectively reduced. In addition, a secret sharing mechanism is introduced to protect key information, and a secret key is managed. By analyzing the performance of the technical scheme in the aspects of authority access control, storage cost, auditing efficiency and the like and evaluating the safety and performance of the technical scheme, the feasibility and superiority of the method in practical application are verified, and a reliable solution is provided for enterprise-level safety auditing.

The invention discloses a quantum encryption vehicle-mounted radar data security sharing network based on a block chain architecture, and belongs to the technical field of vehicle-mounted radar data security sharing. The system comprises a data acquisition module, a data preprocessing module, a quantum encryption module, a block chain storage module, an intelligent contract module, a data verification module, a privacy protection module, a network communication module, a consensus mechanism module and a data retrieval module. The quantum encryption module adopts a BB84 protocol to generate a 256-bit quantum key, an AES-256-GCM algorithm is used for encryption, and encrypted data is coded and stored by adopting base64; the block chain storage module adopts a workload proving mechanism and comprises Merkle root calculation and data hash verification; the intelligent contract module comprises a data sharing contract, an access control contract, a transaction settlement contract and a reputation evaluation contract, and the data is automatically registered to the data sharing contract after being stored; the data verification module adopts a comprehensive verification mechanism including hash verification, digital signature verification, timestamp verification and source verification; the privacy protection module adopts geographic desensitization, differential privacy and homomorphic encryption technologies; the consensus mechanism module adopts an improved practical Byzantine fault-tolerant algorithm and comprises three stages of proposal, preparation and submission. According to the invention, the problems of safety, integrity, trust, privacy and performance of vehicle-mounted radar data sharing in the prior art are solved, and a reliable data sharing infrastructure is provided for intelligent traffic and automatic driving.

The embodiment of the invention provides a resource control method and device, electronic equipment and a storage medium, and relates to the technical field of communication, the resource control method and device are applied to a management platform in a management area cluster, each management area is a node in a block chain system, and the method comprises the following steps: receiving a resource application instruction sent by a first service component in the management area cluster, the resource application instruction comprises a first address and a first input parameter; calling a first smart contract, and returning a first identifier corresponding to a first input parameter to the first service component under the condition that the first input parameter is queried in the database; and calling a second smart contract, and determining an owner of the first resource from the first service component and a second service component serving as a current owner according to the priority of the service component. According to the scheme, the problem that the service component randomly modifies the key attribute information of the resources, so that the operation fault of the network is caused, and disastrous loss is brought to the user can be solved.

The application provides a kind of base-level medical low-altitude logistics whole-process traceability management method and system, multi-source parameters of medical supplies, unmanned aerial vehicle, handover site and signing link are collected, after being aligned by Beidou time service high-precision timestamp, push to full-factor digital twin model to realize virtual-real mapping;Adopt alliance chain stage-by-stage chain mechanism to encrypt storage of whole-process data and unique traceability identifier, determine each link adaptive early warning threshold by combining medical material risk level and historical data;Real-time monitoring of whole-process parameters, calculate multi-parameter fusion abnormality, when abnormality exceeds limit or compliance anomaly occurs, trigger smart contract to automatically execute abnormal disposal and generate whole-process traceability report.This scheme realizes the whole-process credible traceability of base-level medical low-altitude logistics from warehouse to signing, real-time management and control and intelligent disposal, effectively guarantees the safety and timeliness of medical material transportation.

The application relates to the technical field of laboratory detection, and particularly discloses a kind of monitoring data automatic acquisition system and method, system includes laboratory control terminal and distributed server;Its characterized in that, laboratory control terminal includes: data entry module, for obtaining the unique code of current sample to be measured, the entry time stamp of sample and the identity information of user;Warehouse management module is used for obtaining the rest coordinate parameters of the end gripper of mechanical arm in the laboratory when last task ends;Also used for determining operation parameters according to the rest coordinate parameters when last task ends, the unique code of current sample to be measured, the entry time stamp of sample to be measured and the identity information of user four groups of data, through built-in site generation algorithm, operation parameters are operated, and mapped to the warehouse placement position of laboratory warehouse sample placement platform.Enter the warehouse placement position calculated from the above four groups of data, upload to the block chain network of distributed server and store evidence.The technical scheme of the application can monitor the detection process of the sample to be measured in the laboratory stage, and prevent tampering.

The invention discloses a satellite data right confirmation and data tracing method and related equipment, and relates to the technical field of satellite remote sensing, and the method comprises the steps: generating a multi-dimensional ownership label of satellite data, embedding the multi-dimensional ownership label into the satellite data, and carrying out the operation of the satellite data embedded with the multi-dimensional ownership label, generating a traceability record, storing lightweight traceability information in the traceability record to an alliance chain, and storing detailed traceability information in the traceability record to a private chain; updating ownership layer information in the multi-dimensional ownership label based on the traceability record; and in response to the traceability query request, generating and outputting a full-process traceability map of the satellite data by querying the lightweight traceability information stored in the alliance chain and the detail traceability information stored in the private chain, thereby overcoming the defects of inaccurate right confirmation, delayed traceability, high security risk, poor collaboration and the like in the prior art. And reliable support is provided for satellite data marketization circulation and safety management.

The application relates to the technical field of file storage, and discloses an administrative file tamper-proof storage method and system. The method comprises the following steps: associating and coupling content features and structure description information to obtain a digital fingerprint; binding a unique identifier to the digital fingerprint to obtain a feature binding record; block-encoding metadata and the feature binding record to obtain a data block, and storing the data block in a chain based on a blockchain consensus mechanism to obtain a storage chain record; when a target file is accessed, performing multilevel verification on an instant feature digest and the storage chain record to obtain a state verification result; when the state verification result is passed, archiving an access log in the storage chain record; when the state verification result is not passed, locking an access right to obtain a right locking record, and auditing and tracking the right locking record to generate an audit report of the target file; and the application can improve the security of administrative file storage.

The application discloses a traceable method for task replication and resource allocation in a large-scale machine type communication network, belongs to the technical field of wireless communication and mobile edge computing, and comprises the following steps: based on Lyapunov optimization theory, physical and virtual queue quantitative constraints are established, and long-term optimization is converted into a per-time-slot "drift plus penalty" minimization problem; then, the problem is decomposed into a task replication sub-problem, a resource block allocation sub-problem and an edge server queue management sub-problem, and the sub-problems are solved in sequence; an optimal task replication scheme is determined and saved as a first decision credential; a resource block allocation scheme is determined and saved as a second decision credential; an optimal edge server queue management scheme, including an edge server task processing rate and a task discard amount, is determined and saved as a third decision credential; and a queue state is updated, the decision credentials and the queue state are encapsulated as a periodic transaction and written into a blockchain to form an operation audit log; and the application realizes optimal balance of long-term operation cost and makes the decision process traceable.

The application discloses an inter-provincial spot transaction carbon footprint tracking method, system and device based on a blockchain, and belongs to the technical field of electric power. The carbon footprint tracking method comprises the following steps: collecting inter-provincial electric power spot market cross-provincial electric power transaction results through a blockchain, and storing the results in the proxy accounts of each power generation province and power purchase province in a blockchain business; combining the inter-provincial electric power spot market clearing results, modeling carbon emission allocation of inter-provincial electric power spot transactions, and obtaining a carbon emission allocation coefficient; according to the proxy account information of each power generation province and power purchase province, the inter-provincial electric power spot market clearing results and the carbon emission allocation coefficient, evaluating the whole process of carbon production, carbon transfer and carbon allocation through a smart contract, and recording the whole process in the blockchain; and according to the results recorded by the smart contract, forming unalterable carbon footprint information in the blockchain through a chain structure.