1236 results about "Blockchain" patented technology

The application discloses a traffic data sharing method and device, a nonvolatile storage medium and an electronic device. The method comprises the following steps: a first edge computing node in a blockchain network sends an edge computing node public key of the first edge computing node to an authoritative trusted node in the blockchain network, and obtains a verification certificate generated by the authoritative trusted node according to the edge computing node public key; the first edge computing node verifies the verification certificate, and after the verification result is verified, obtains traffic sharing data in the blockchain network, wherein the traffic sharing data comprises traffic data uploaded to the blockchain network by a second edge computing node; and the traffic sharing data is broadcasted through a base station where the first edge computing node is located. The application solves the technical problem that the road information corresponding to different operators in the region cannot be integrated and shared due to the fact that the networked vehicles corresponding to different operators cannot directly transmit data in the prior art.

The application discloses a kind of based on blockchain's joint membership authentication method, device and system, belong to data security technical field, adopt zero-knowledge proof technology as the main technical means of "zero knowledge" qualification proof generated by user, not only can prove its identity attribute meets the qualification of applying joint member under the premise of protecting the privacy of user to provide joint member service organization;It also proves that it has the qualification of accessing joint member service rights and interests under the premise of privacy protection to other joint member service organizations.Secondly, the qualification condition of the user to obtain joint member rights and interests is not restricted in the application, so that the user can independently select and flexibly obtain the joint member required by himself through his own attributes and attribute proof, avoiding the situation that the user rights and interests demand is less than joint member rights and interests, which leads to additional payment for unnecessary rights and interests.

A blockchain system showing a transaction status in real time is provided. The system comprises: a stable blockchain that issues and manages a stable coin having a fixed exchange rate with a predetermined real currency; and a scanning server that provides issuance information of the stable coin.

The application discloses a cross-industry data assetization management and circulation system, which comprises five core modules. A data block encryption module receives cross-industry biological data flow, performs sequence block and nested encryption, and generates an encrypted data flow; a blockchain section storage module generates a hash storage certificate for the data block and writes the hash storage certificate into a blockchain; a federal contribution attenuation evaluation module receives a federal learning gradient update signal, performs time attenuation and marginal benefit adjustment to generate a contribution evaluation signal; a cross-modal knowledge graph alignment desensitization module realizes cross-modal entity semantic alignment, calls a configurable desensitization rule chain to generate a desensitized data flow; and a data circulation gateway module integrates three types of signals to generate a data asset circulation control signal. The application solves the collaborative management problems of safe storage, privacy protection, contribution quantification and compliance desensitization in the circulation of cross-industry biological data.

System and methods for validating and confirming the integrity of documents and for validating identity related to the documents based on artificial intelligence and / or blockchain systems. In embodiments, a system implements validation controls to validate and / or confirm the integrity of documents to safeguard against document tampering, ensuring the integrity of the document remains intact throughout the signing process and afterwards. In addition, in embodiments, a system with enhanced functionality implements advanced verification and / or validation mechanisms to ensure the identity of the signatory parties of a document accurately reflects the authorized individual(s). The advantageous result of a system implemented in accordance with the present disclosure is a system that is able to address the critical gaps of current existing digital signature systems and in doing so, the present disclosure enables a system to significantly bolster the security, reliability, and trustworthiness of digital document signing and management.

This invention relates to the field of information review and management technology, and discloses a dynamic approval management system for work order video uploads, comprising: a video upload module, a deep model prediction module, a knowledge graph inference engine, a dynamic rule conflict detection module, a manual review workbench, a blockchain evidence storage module, a two-way anchoring module, and a change warning module; the video upload module is used to receive videos associated with work orders; the deep model prediction module is used to identify preset violations frame by frame in the video and output pre-review tags, confidence levels, and heatmaps of suspicious areas. This dynamic approval management system for work order video uploads, through parallel verification of deep model prediction and knowledge graph inference engines and dynamic conflict detection, can automatically identify suspicious videos whose model output is inconsistent with business rules and generate suspicious tags with causal chains, guiding accurate manual review and significantly reducing the workload of ineffective reviews.

The application discloses an online data testing method for a mutual inductor based on artificial intelligence and particularly relates to the technical field of mutual inductor data testing, which comprises the following steps: synchronously collecting primary side data, secondary side data, standard device reference signals and working condition environment data in an operating field and encapsulating the data into a structured data package with a unified time scale; deploying digital twin agents on a data sending end and a data receiving end respectively, transmitting monitoring signaling through an independent safety channel, and realizing virtual and real synchronous verification of data integrity and service rationality; forming a structured abstract from verification results and key features, storing the abstract in a block chain network, and constructing an unalterable testing process log to realize accurate tracing. The application realizes real-time and highly credible online testing of a mutual inductor under non-power-off conditions, has full-link traceability and intelligent early warning capability, and significantly improves testing efficiency and intelligent operation and maintenance level.

The application discloses a kind of based on blockchain's pedigree data dynamic permission access control system and method, rely on attribute-based access control paradigm, and combine pedigree data access constraint to carry out dynamic access control.First, user sends access request to policy decision point;Decision point according to the policy loaded from policy management point, request relevant information to blockchain, and call user historical behavior verification module based on pedigree data, the legality of current access request is verified using dependency relationship and pedigree data graph.System administrator records access request and verification result to blockchain, to support the fast verification of same query, reduce query overhead.In addition, the system passes access information such as query user, time, result, operation content to management node, for subsequent user access tracking and management.The method uses the anonymity and non-tamperability of blockchain, provides strong evidence for user supervision, realizes efficient management and reasoning to source information.

The application belongs to the technical field of data processing, and particularly relates to a method for storing and verifying operation and maintenance data of a series backup power supply based on a blockchain. The method collects voltage and internal resistance data of each single power supply of the series backup power supply, and constructs an ordered sequence according to the physical position sequence. According to Kirchhoff's voltage law, the theoretical total voltage drop is calculated, and the difference between the theoretical total voltage drop and the measured total voltage drop is taken as a constraint factor. The constraint factor and the ordered sequence are used to construct a local Merkle tree and generate a root hash, which is broadcast to a blockchain network. The smart contract analyzes the ordered sequence to recalculate the difference, and when the recalculated difference is within a preset physical threshold range, the root hash is written into a blockchain ledger. The physical and electrical coupling relationship of the series circuit is embedded in the blockchain consensus verification process, and the physically constrained factor is used to block locally tampered data from being uploaded to the chain in violation of the circuit rules, thereby ensuring the physical consistency of the stored data.

Device and Method for Managing Access Rights and Authorizations This description concerns a method for managing access to the use of an automated system, comprising: - providing an identification value, associated with a user, to a first device; - generating, via a secure circuit of the first device, an account address based on a master key associated with the first device, the identification value, and a context value; - sending a transaction to the account address in a blockchain; - validating or invalidating the transaction, by the blockchain, based on the balance associated with the account address in the blockchain; and - if the transaction is validated by the blockchain, authorizing the first device to grant the user access to the automated system. Figure for the abstract: Fig. 8

The application provides a big data-based carbon transaction market intelligent analysis system and method, relates to the field of carbon asset analysis, and is characterized in that: a blockchain+digital twin MRV credible closed loop is first created, data is unforgeable, traceable and automatically certified; a 'carbon-energy-economy' coupled multi-scale model is constructed, the carbon price prediction accuracy is improved; an all-industry-chain carbon footprint quota allocation is innovated, and an incentive mechanism is combined to stimulate emission reduction power; a federal learning collaborative supervision is first created, millisecond-level identification of violations, personalized early warning and CBAM compliance deduction are realized; a carbon asset digital twin and cross-chain transfer technology are first created, the linkage of 'carbon data-carbon assets-carbon finance' is promoted, and market liquidity is improved.

The application relates to a relay chain-based cross-chain service processing method and device, equipment and a storage medium, and belongs to the field of blockchains. The method comprises the following steps: obtaining a first cross-chain transaction request of a cross-chain transaction sent by a source chain, wherein the first cross-chain transaction request carries the data of the cross-chain transaction, a transaction type identifier and a target chain identifier; distributing the cross-chain transaction data to a cross-chain processing channel corresponding to the transaction type identifier in a relay chain according to the transaction type identifier, performing operation and obtaining an operation result; performing consensus processing on the cross-chain transaction according to the operation result; sending a second cross-chain transaction request to a target chain corresponding to the target chain identifier, wherein the second cross-chain transaction request carries the data of the cross-chain transaction and a transaction identifier; and sending a processing result of the second cross-chain transaction request obtained by the target chain to the source chain. The application parallelly processes the cross-chain transaction by distributing the cross-chain transaction to different cross-chain processing channels, realizes the concurrency of intrachain transactions on the relay chain service, and improves the processing performance of the cross-chain transaction.

The application provides a distributed transaction consistency execution method, device, equipment, medium and product, and relates to the technical field of distribution. The method comprises the following steps: receiving a transaction request initiated by a user, the transaction request being used for requesting execution of a distributed transaction; generating a unique transaction identifier used for identifying the distributed transaction according to the transaction request; generating reverse operation instructions corresponding to transaction operations of the distributed transaction according to the distributed transaction and the unique transaction identifier; storing the unique transaction identifier and the reverse operation instructions in association to a blockchain network; executing the distributed transaction, and when partial submission of the distributed transaction fails, extracting the reverse operation instructions associated with the unique transaction identifier from the blockchain network according to the unique transaction identifier; and executing the reverse operation instructions to realize a rollback operation of the distributed transaction. The method of the application effectively solves the problem of data inconsistency caused by partial submission failure of the distributed transaction while reducing the development complexity.

The application provides a kind of sharded blockchain dynamic account allocation method considering transaction type, comprising: based on the consensus protocol within the sharding of sharded blockchain system and each transaction type weight executes transaction, generates local transaction graph;Aggregating all local transaction graphs to build a global transaction graph, and extracting a feature vector representing the system state from the global transaction graph through a graph attention network (GAT) and outputting an account allocation strategy prediction result;Optimize the prediction result through GA-PPO agent to obtain the optimization result of account allocation strategy;Based on the consensus protocol within the sharding, the decision result of the mapping relationship between the account and the sharding is generated according to the optimization result of the account allocation strategy, and the account migration operation is executed according to the decision result.The process data of the account migration operation executed according to the new strategy can also be recorded, and the recorded process data is used for continuous training of GA-PPO agent.The application optimizes the dynamic account allocation strategy in the sharded blockchain system, and improves the scalability and performance of the system.

Embodiments of the present application provide a data processing method and device of a blockchain system, a medium and an electronic device. The blockchain system includes a main chain and at least one sub-chain. Each sub-chain is derived from a block height in the main chain. A main chain relay contract is deployed in each sub-chain. A main chain block header is stored in the main chain relay contract. The main chain block header includes configuration information. The data processing method includes: when a new business block needs to be generated for a specified sub-chain, obtaining the configuration information of the main chain from the main chain relay contract; if the configuration information of the main chain is inconsistent with the configuration information of the specified sub-chain, updating the configuration information of the specified sub-chain by using the configuration information of the main chain; and if the configuration information of the main chain is consistent with the configuration information of the specified sub-chain, packing the new business block and performing consensus and chain processing. The technical solution of the embodiments of the present application can realize global unified configuration and management of multiple blockchains in the scene of multiple blockchains.

Certain aspects of the present disclosure provide techniques for securely processing transactions on a blockchain or other distributed computing system. An example method generally includes receiving a request to execute an action in the distributed computing system. Based on the request, a set of systems in the distributed computing system are identified to approve the request to execute the action. Generally, each system in the set of systems has a weight associated with the system. Approval is requested from systems in the set of systems for execution of the request to execute the action in the distributed computing system. The action is executed in the distributed computing system based on a cumulative weight of approving systems from the set of systems exceeding a threshold weight for approval.

This application discloses an image processing method, apparatus, device, and storage medium, applicable to fields such as cloud computing, computer vision, and blockchain. The method includes: determining a first feature image of a first initial image and a second feature image of a second initial image; determining at least one sub-image from the first and second feature images based on a preset pixel window; determining at least one image pair based on the region of each sub-image in the corresponding feature image; fusing the first and second sub-images in each image pair to obtain a fused image; determining the image registration state of the corresponding image pair based on each fused image; and determining the image registration state of the first and second initial images based on the image registration state of each image pair, wherein the image registration state is either registered or unregistered. Using this application embodiment, the image registration state can be determined efficiently and accurately, exhibiting high applicability.

The present invention relates to an integrated system for tracking and securing high-risk medications, intended for use in clinics and hospitals. The system uses NFC chips, blockchain, and artificial intelligence. Each medication is equipped with a unique NFC chip containing encrypted information, enabling rapid and secure identification at each stage of the medication's lifecycle within the healthcare system. All transactions and transfers are recorded on a blockchain, guaranteeing data immutability and transparency. An artificial intelligence module analyzes the data in real time to detect anomalies or suspicious behavior, thereby strengthening security and regulatory compliance. This system aims to prevent misappropriation, abuse, and medical errors, while improving inventory management within clinics and hospitals.

The application discloses a data product pricing method and device based on reinforcement learning, and a medium. The method comprises the following steps: obtaining the cumulative total cost and the total number of calls of a target data product, and calculating a break-even bottom price of the target product; determining a value adjustment coefficient through a preset parameter mapping relationship according to multi-dimensional value evaluation parameters, and adjusting the break-even bottom price to obtain a benchmark price; calculating a price deviation value between the benchmark price and a market median price; when the price deviation value exceeds a preset threshold, generating an expected selling price based on the current operating state parameters of the market through a reinforcement learning agent; performing a gray-scale test on the expected selling price to determine a full-amount effective state; and based on the effective expected selling price, performing the verification and cancellation of the number of calls through a blockchain in response to the number of calls paid by a buyer. The cost and value are anchored, the reinforcement learning dynamic pricing and delivery feedback closed loop are linked, and the pricing can be adjusted according to market and quality changes.

This application discloses an architecture and chain-based storage method for a dynamically editable blockchain, relating to the field of blockchain technology. In this architecture, blockchain nodes are divided into ledger nodes, chain nodes, and dynamically expanding nodes. Ledger nodes store underlying ledger transaction data. Chain nodes, when editing blockchain data, point the ledger node ID pointer to the corresponding dynamically expanding node ID. Dynamically expanding nodes, when editing blockchain data, dynamically create a virtual space corresponding one-to-one with the ledger to store the data ledger that needs to be modified. When editing blockchain data, the node receiving the ledger editing request, after reaching decentralized consensus through a trusted node group, uses the chain node to find the corresponding dynamically expanding node storage location and completes the data update. This application can securely and efficiently complete block editing under decentralized conditions, and the data change process is traceable and tamper-proof.

This invention discloses an AI design generation link management method based on blockchain notarization, relating to the field of design link notarization technology. The method includes: generating rule summaries and calculating rule drift indices; accessing reference materials, standardizing them, and generating material fingerprints and access control identifiers; calculating material anchoring completeness indices to form material anchoring; collecting generation parameters, modification actions, referenced material anchoring, and output file information at inference trigger points; encapsulating metadata packets and calculating fused digital fingerprints; signing the metadata packet summary; writing the fused digital fingerprint, metadata packet summary, output file set summary, and version parent association summary into the blockchain to obtain a trusted timestamp and generate an electronic copyright certificate carrier; releasing design data based on approval and double signature, recording delivery usage, and forming a periodic settlement summary on the blockchain; verifying online in case of disputes and uploading the verification summary and revocation record to the blockchain to achieve full-link non-repudiation and traceability.

The invention relates to the technical field of data security, and discloses a data security management method and system based on a block chain. The method comprises the following steps: acquiring and standardizing encrypted data and main body request information; extracting identity attributes and access requirements, and matching data paragraph attributes to generate permission vectors; synchronizing to a block chain and screening an adaptation rule combination; planning a conversion path to adjust an encryption key; verifying the identity authority, and calculating the matching degree to generate a temporary access token; the verification token obtains the data and re-encrypts the data; isolating the unauthorized content to obtain an isolated data packet; and after secure transmission, recording the log, updating the permission vector and synchronizing the permission vector to the block chain. And dynamic accurate authority management and secure sharing of encrypted data are realized. According to the method, dynamic accurate authority management and secure sharing of encrypted data can be realized, and dual requirements of data privacy protection and efficient circulation in a complex scene are met.

The invention provides a computing power transaction method, device and equipment, a readable storage medium and a program product, and the method applied to a computing power providing node comprises the steps that first pricing information of computing resources is written into a block chain network, and the first pricing information is determined according to a price strategy; first ordering information written by the computing power demand node is acquired through the block chain network, and the first ordering information is determined according to the first pricing information; according to the first objective function, the first pricing information and the first ordering information, a learning parameter is used to optimize a price strategy and update the price strategy, and the learning parameter is dynamically adjusted according to a WOLF algorithm; determining target pricing information of the computing resources according to the price strategy under the condition that the price strategy meets the equilibrium condition, and writing the target pricing information into the block chain network; and obtaining target ordering information written by the computing power demand node through the block chain network. And maximization and balance of interests of two parties of computing power transaction can be realized.

The application discloses a kind of intelligent factory blockchain anomaly detection methods, including steps: S10, according to the federation learning under the scene of intelligent factory blockchain, use the local model of each participating node itself, let each local model participate in the update of cloud global model, and the pre-training model is aggregated;S20, again based on pre-training model, training obtains global anomaly detection model;In the training process, the sensitive information of participating node in the training process is protected using privacy protection method;S30, after obtaining global anomaly detection model, the model is used to screen the abnormal state on the intelligent factory blockchain.The application proposes a new blockchain anomaly detection method based on federation learning, which can secretly aggregate the trained user model without revealing the user model.It also has effective fault tolerance capability for user disconnection.The protocol can be executed normally when a large number of users are disconnected during operation.

The embodiment of the application discloses a kind of based on blockchain technology's customer information session acquisition method and device, it is related to blockchain technology field, it can be used in financial field or other fields, the method comprises: obtaining preset block index and preset bank session private chain;According to the block index, the position information of the data block corresponding to the target customer in the bank session private chain is determined, then the data block is obtained from the bank session private chain according to the position information, and then the customer information session of the target customer is obtained from the data block.This application effectively prevents the occurrence of session drift, effectively avoids the problem that customers cannot obtain services due to session drift.

This invention discloses a data acquisition and storage method and system based on blockchain and multiple data tags. The method includes: a client determining the source data file to be uploaded, a core metadata tag set, and an extended metadata tag set; deduplicating and merging the two tag sets to obtain a tag set; calculating the hash value of the tag set as its identifier; dividing the source data file into N file fragments, calculating their hash values, and constructing a Merkle tree; using the root hash value of the Merkle tree and the tag set identifier to construct another Merkle tree and obtaining the root hash value as a global integrity identifier; and uploading the source data file, its tag set, and the global integrity identifier to an application server, which then submits the data to the blockchain network as a notarization transaction to achieve tamper-proof notarization. This invention aims to ensure the security of source data files and tag sets during the acquisition and storage process, as well as the traceability of the acquisition and storage process, in distributed, geographically dispersed data acquisition and storage scenarios.

The embodiment of the specification provides a distributed power voltage control method and device based on a trusted interaction blockchain, wherein the method comprises: taking a distributed power node as a blockchain network node, constructing a voltage control model in which the distributed power node affects the voltage of a node by adjusting reactive power; constructing a blockchain trusted interaction mechanism, a node generates a voltage measurement transaction with a digital signature based on collected local voltage and records it on a chain, verifies and shares voltage data through a consensus mechanism; using verified neighbor node voltage information read from the blockchain, constructing a distributed collaborative voltage control law containing a local adjustment term and a blockchain interaction term; constructing a closed-loop structure of voltage collection, on-chain verification and control execution, and nodes execute the control law based on trusted shared voltage data to achieve collaborative voltage control without a centralized controller. The trusted collection, safe sharing and decentralized collaborative control of distributed power voltage data are realized.

The present application relates to the technical field of network monitoring, and more particularly to a network data intelligent monitoring method and device and electronic equipment, the method comprising: constructing a single node evaluation index based on the communication data of each node in the target network, and then classifying each node according to the single node evaluation index of each node, obtaining the consensus participation record of each node in the monitoring window, and constructing a node consensus activity model to correct the classification process of the node; constructing a transmission pressure set of each node, and identifying a pressure convergence node based on the classification results and the transmission pressure set of each node; determining each network consistency index based on the broadcast receiving time of each node in the monitoring window, and determining the health status of the target network in the monitoring window in combination with the pressure convergence node. The present application effectively improves the monitoring efficiency of the blockchain network.