14 results about "Management contract" patented technology

The invention discloses a food safety traceability system and method based on a block chain technology, and relates to the technical field of supply chain management, and the system comprises a data collection layer, a block chain network layer, an intelligent contract layer and an application layer. The intelligent contract layer comprises a traceability data contract, a business rule contract, a trusted transaction contract, an authority management contract and an early warning trigger contract; the method comprises the steps of supply chain main body registration and authority configuration, business rule intelligent contract deployment, traceability data acquisition and uplink, business rule automatic verification and execution, credible transaction verification and confirmation, traceability query and credible verification, and abnormity early warning and emergency response. According to the invention, automatic execution and credible transaction verification of the business rules are realized through the smart contract, so that the traceability data cannot be tampered, interconnection and intercommunication of data in each link of the supply chain are realized, real-time early warning of abnormity and rapid emergency response are supported, and the credibility, transparency and efficiency of food traceability are improved.

To provide a program, a method and an information processor for promoting the use of an electronic contract by further facilitating the management of a contract while limiting a target person who can browse the contract depending on the contract.SOLUTION: In a server 20 which is an information processor, a storage part 202 has a document management database 213 for managing a document such as contract document data showing contract contents agreed by persons concerned, and a user database 211 for storing information of persons concerned related to a contract of the contract document data. When receiving a request to refer to the contract data from a user, the control unit 203 specifies a range in which the contract data can be referred to according to whether the user who makes the request is a person concerned with the contract data, and presents the contract data to the user who makes the request according to the specified range in which the contract data can be referred to.SELECTED DRAWING: Figure 2

This invention discloses a blockchain-based smart retail system and method, belonging to the field of supply chain management technology. The system includes: a blockchain network module with a hybrid architecture; a digital identity and asset management module; a smart contract cluster, including commodity traceability management contracts, token points management contracts, data rights management contracts, and supply chain finance contracts; and an application interface layer module. The method includes four steps: commodity traceability, points exchange, data rights trading, and supply chain finance. Through blockchain and smart contract technologies, the system deeply integrates commodity flow, information flow, value flow, and capital flow, constructing a decentralized, trustworthy collaborative, and fair value distribution new retail ecosystem. This effectively solves problems such as information opacity, isolated points systems, data monopolies, and financing difficulties for SMEs in the traditional model.

The present disclosure relates to a blockchain architecture based on main sub-chain consensus inheritance, a data processing method and device, the blockchain architecture comprising: a main chain, which is a main blockchain network; and at least one sub-chain, which is a sub-blockchain network. The main chain is configured with a sub-chain management contract, and a list of consensus nodes obtained based on a main chain election mechanism is inherited to the sub-chain based on the sub-chain management contract. Each sub-chain has an independent business execution environment and supports independent processing of corresponding businesses. Each sub-chain is configured with a corresponding sub-chain business processing contract, and transactions and intra-sub-chain consensus processing of corresponding businesses are performed based on the sub-chain business processing contract. The consensus node objects in the sub-chain are determined according to the list of consensus nodes inherited from the main chain, and the intra-sub-chain consensus processing is performed based on the consensus node objects. Overall, the system parallel processing capability is improved, high concurrency traffic is effectively faced, and the system security and scalability are improved.

The application discloses a kind of based on blockchain technology's cross-industry alliance right management method and system, belong to blockchain technology field.The method includes: system initialization, rule setting, transaction processing and right exchange.System includes alliance chain network, smart contract layer, application layer and external service interface;Smart contract layer is deployed with general right management contract, transaction and account distribution contract, right exchange contract and right pool management contract.The application realizes the generation of general right and the transfer of right gold synchronization through right and fund anchoring mechanism;Through multilevel automatic account distribution, realize the real-time right distribution of multiple roles in single transaction;Adopt hybrid storage on-chain and off-chain, based on attribute encryption and zero-knowledge proof, realize data privacy protection.The application solves the problems of data silos, high trust cost, right idle and insufficient privacy protection in the prior art, and realizes safe, efficient and trusted cross-industry alliance right management.

To realize that only specific users at specific locations can receive interactive services. [Solution] The information processing device includes a contract information management unit that manages contract information that associates first identifier information indicating a first device that can use a video service pursuant to a contract between a specified operator and a user and second identifier information indicating a second device that is different from the first device and owned by the user; a receiving unit that receives a video service request from the first device and also receives the first identifier information; a transmitting unit that transmits communication identification information to the first device for identifying the communication indicated by the video service request; a matching unit that, when receiving communication identification information from the second device, compares the second identifier information of the second device with the second identifier information associated with the first identifier information managed as contract information; and a communication control unit that starts communication based on the video service request if the comparison results in a match between the two.

The application discloses a kind of wisdom logistics platform electronic seal automation management method and system, it is related to logistics management technical field, the contract signing module of this system integrates seal request unit, first processing unit, second processing unit, electronic seal acquisition unit and contract signing unit, the effective authentication of user identity is realized through these units, and the electronic seal of dynamic encryption storage is quickly acquired, and the contract signing process provides security guarantee.In addition, the system also contains contract template management, seal management, contract generation, log and audit and user authority management and multiple modules, jointly provide comprehensive, efficient, safe wisdom logistics platform electronic seal automation management scheme.

The application relates to the technical field of blockchains, and provides a consortium chain account management method, system and device based on a smart contract and a medium. The method comprises the following steps: receiving a first smart contract transaction and smart contract parameters sent by an administrator terminal; calling an account management contract according to an account private key in the first smart contract transaction; and performing account management according to the account management contract and the smart contract parameters. The consortium chain account management method based on the smart contract provided in the application can directly initiate a consortium chain account management process through the administrator terminal in the process of consortium chain account management based on the smart contract, the contract system can call the account management contract to perform account management, the process is simple and convenient for auditing, and the account management process is simplified. Meanwhile, the administrator terminal with the highest authority can control the consortium chain account management process at any time in the process, and the account management security is improved.

Supporting various services related to digital legacy that smoothly substitute the procedures for handling digital legacy without waiting for requests from the bereaved family, and recover and delete digital legacy in accordance with the will of the deceased. 【Solution means】 The system is a digital legacy management system in which a first data terminal 3 operated by the contractor himself / herself communicates with a server device 1 that substitutes the procedures for handling the legacy in accordance with the management contract for the digital legacy requested from the terminal. The server device 1 requests the first data terminal 3 to confirm the survival of the contractor himself / herself as a survival confirmation request. The CPU 1-2 determines the survival status of the contractor based on the response result from the first data terminal 3, and automatically deletes the digital legacy of the deceased registered in the contract servers 2-1 to 2-N when the survival status of the contractor cannot be confirmed.

The application discloses a kind of based on blockchain technology's cross-industry alliance right management method and system, belong to blockchain technology field.The method includes: system initialization, rule setting, transaction processing and right exchange.System includes alliance chain network, smart contract layer, application layer and external service interface;Smart contract layer is deployed with general right management contract, transaction and account distribution contract, right exchange contract and right pool management contract.The application realizes the generation of general right and the transfer of right gold synchronization through right and fund anchoring mechanism;Through multilevel automatic account distribution, realize the real-time right distribution of multiple roles in single transaction;Adopt hybrid storage on-chain and off-chain, based on attribute encryption and zero-knowledge proof, realize data privacy protection.The application solves the problems of data silos, high trust cost, right idle and insufficient privacy protection in the prior art, and realizes safe, efficient and trusted cross-industry alliance right management.

The present application relates to the technical field of cross-chain transaction, in particular to a smart contract cooperation method, system, device and medium based on cross-chain transaction. It comprises the following steps: S1, initiating cross-chain transaction on the source chain, triggering the qualification review contract, node management contract and verification cooperation contract set on the source chain; S2, the qualification review contract extracts the qualification data of the initiator and the receiver according to the initiated cross-chain transaction, and the transaction value of the cross-chain transaction, carries out risk quantitative analysis on the cross-chain transaction according to the qualification data and the transaction value, and determines the risk value according to the analysis result; by constructing a multi-dimensional risk quantitative evaluation system, the problem of insufficient risk assessment accuracy is effectively solved, the qualification data of the transaction initiator and the receiver and the transaction value are deeply integrated, a multi-dimensional quantitative model with dynamic weight distribution is used to calculate the comprehensive risk value, and the cross-chain transaction risk is finely described.

The invention relates to the technical field of cross-chain transactions, in particular to an intelligent contract collaboration method, system and device based on cross-chain transactions and a medium. The method comprises the following steps: S1, initiating a cross-chain transaction on a source chain, and triggering a qualification review contract, a node management contract and a verification cooperation contract which are set on the source chain; s2, a qualification review contract: extracting qualification data of the initiator and the receiver and a transaction value of the cross-chain transaction according to the initiated cross-chain transaction, performing risk quantitative analysis on the cross-chain transaction according to the qualification data and the transaction value, and determining a risk value according to an analysis result; by constructing a multi-dimensional risk quantitative evaluation system, the problem of insufficient risk evaluation accuracy is effectively solved, qualification data of a transaction initiator and a transaction receiver are deeply fused with a transaction value, a comprehensive risk value is calculated by adopting a multi-dimensional quantitative model of dynamic weight distribution, and refined description of cross-chain transaction risks is realized.

The application provides a game guild management method, device and equipment, a server and a medium, and relates to the technical field of blockchains. The method comprises the following steps: in response to an application operation of a preset guild operation input by a first game player, obtaining management application information for a game guild; according to the management application information, sending a management request for the game guild to any node in a blockchain, so that the node uses a pre-deployed guild management contract to generate a contract for the game guild according to the management request; and receiving information of the contract sent by the node, wherein the contract is used to perform a preset guild operation of the game guild. The node uses the pre-deployed guild management contract to generate the contract for the game guild according to the management request, thereby improving the freedom of defining the contract of the game guild, and the contract is used to perform the preset guild operation of the game guild, thereby improving the freedom of the game guild operation, further improving the freedom of the game guild, and improving the user experience.

The invention relates to the technical field of computers, and particularly discloses a contract auditing method and device, electronic equipment, a storage medium and a program product, and the method comprises the steps: obtaining a candidate contract text; target key fields are determined according to contract types and contract categories of the candidate contract texts, target contract texts are extracted from the candidate contract texts, and the target contract texts are texts related to the target key fields; inputting the target contract text and the first prompt word into a first model to obtain an audit result output by the first model; the first model is used for auditing the target contract text according to the indication of the first prompt word. On the basis, the contract data can be managed more efficiently, the overall operation efficiency is improved, the management cost is reduced, and meanwhile potential risks caused by human negligence are reduced.