354 results about "Digital currency" patented technology

A system and method for facilitating collection of Road User Charges (RUC) using a digital currency within a Distributed Ledger Technology (DLT) network are disclosed. The system generates secure digital wallets for Road Users and Facility Owners, receives trip, position, distance, and cost data from vehicles, sensors, and facility systems, and encodes settlement logic into smart contracts. These contracts automatically execute jurisdiction-specific disbursements across blockchain, directed acyclic graph (DAG), or hashgraph frameworks, ensuring scalability and auditability without reliance on centralized tolling infrastructure. An AI Activity Module processes multi-source telemetry—including vehicle sensors, GNSS / PNT data, roadside infrastructure, and third-party traffic feeds—to detect congestion, forecast conditions, optimize routing, and dynamically adjust segment-level RUC pricing in real time. The integration of AI-driven adaptive pricing with distributed ledger settlement provides a decentralized, infrastructure-agnostic framework for secure, transparent, and verifiable road use fee collection across multiple jurisdictions, distinct from conventional tolling systems.

The invention discloses a cross-border e-commerce block chain payment credit chain system and a method thereof, and realizes data sharing, information real-time synchronization and credit information dynamic transmission of each participant in a transaction by constructing an alliance block chain network. The system comprises a credit management module, a risk control module, an intelligent contract payment module, a digital currency exchange module and a security collaboration module, and multi-dimensional credit assessment, dynamic risk prediction and automatic payment are realized by using cross-domain technologies such as federated learning, trusted execution environment and homomorphic encryption. Through fund freezing, real-time digital currency exchange, payment triggered by performance conditions and other mechanisms, the cross-border payment clearing period is remarkably shortened, the transaction cost is reduced, the payment safety and supervision transparency can be improved, and the problems that traditional cross-border payment is low in efficiency, high in cost, difficult in risk control and the like are effectively solved.

The provided are a digital currency payment method and apparatus, and relates to the field of computer technology. A specific implementation of the method includes: determining, by a payment device, transaction information of a current digital currency transaction based on an instruction sent by a collection device; invoking the transaction information through a local security chip, and sending the transaction information to the collection device for verification, where the transaction information includes a digital currency or identification information, and the identification information is used for identifying a wallet account or digital currency of the payment device; and updating, by the payment device, a digital currency balance after determining that the transaction information passes the verification.

This system provides a computerized method for executing a legally binding digital, comprising: creating a unique tokenized representation of the Pactvera using a non-fungible token standard; embedding a payment value or digital consideration into said token; verifying parties to the Pactvera through biometric authentication and decentralized identity (ChainIT ID) validated against an authoritative source; recording the Pactvera Validation with metadata including time, location, device ID, age verification, and jurisdiction; recording immutable authorship and origin metadata of the Pactvera, including verification of the creator and presenter through Pactvera Validation; validating the original token instance and execution context via a Business Rules Engine (BRE); and releasing payment or conditional consideration via smart contract upon satisfaction of predefined conditions. The invention further enables integration with electronic recording systems for real property transactions in compliance with the Uniform Real Property Electronic Recording Act and produces tamper-proof audit trails suitable for litigation and regulatory use.

The present invention provides an autonomous computing system for cryptographic asset tokenization, digital currency operations, redemption, detokenization, and full lifecycle management of tokenized assets. The system leverages formal cryptographic proofs, hybrid off-chain and on-chain ledger synchronization, and automated execution protocols to enhance regulatory compliance, asset-backed stability, and operational autonomy. Smart contracts, cryptographic hash-based commitments, and distributed validation mechanisms ensure secure, verifiable, and tamper-resistant transactions across decentralized, centralized, and hybrid environments. The system governs the entire token lifecycle by intrinsically linking asset state validation to both on-chain and off-chain records. Hardware-agnostic cryptographic processing enforces governance rules, validates asset-backed token states, and prevents over-issuance. Real-time integrity checks and automated reconciliation deliver a scalable, cryptographically secured framework for autonomous management of tokenized assets and digital currency transactions, minimizing reliance on intermediaries.

The techniques presented herein utilize a decentralized identifier (DID) and verifiable credentials for secure, privacy-protected transactions. On one hand, the method provided by the invention comprises the following steps: receiving user information; determining a DID based on the information; providing the DID to the user equipment; verifying the user identity by verifying the DID and the associated verifiable credentials; a transaction is performed based on the validated DID. Other aspects of the invention include generating a public key-private key pair for a user; associating the DID with a public key; and / or creating a DID document stored in a distributed ledger accessible to the authorized entity. Transaction restrictions are applied according to validated identity attributes, providing zero-knowledge proof to auditing personnel to validate compliance without accessing underlying transaction details. Further aspects presented herein include at least processing transactions through smart contracts on a blockchain network, which may include converting central bank digital currency to legal currency while maintaining user privacy.

This disclosure provides techniques to utilize decentralized identifiers (DIDs) and verifiable credentials for secure, privacy-preserving transactions. In one aspect, a method is provided that includes: receiving user information; determining a DID based on the information; providing the DID to a user device; verifying the user's identity by validating the DID and associated verifiable credentials; and performing a transaction based on the verified DID. Other aspects are provided, such as generating a public-private key pair for the user, associating the DID with the public key, and / or creating a DID document stored on a distributed ledger accessible to authorized entities. Further aspects include processing transactions through smart contracts on a blockchain network, which may involve converting central bank digital currency to fiat currency while maintaining user privacy, applying transaction limits based on verified identity attributes, and providing zero-knowledge proofs to auditors to verify compliance without accessing underlying transaction details.

The embodiment of the invention provides a transaction method and transaction system based on a digital currency hard wallet, and the method comprises the steps: an industry terminal transmits a feature negotiation request to an interactive hard wallet; in response to the fact that the hard wallet receives a successfully matched feature negotiation result determined by the hard wallet according to the feature negotiation request and the features of the hard wallet, the industry terminal generates a first authentication key by using a security algorithm; the industry terminal initiates bidirectional authentication verification with the hard wallet, information sent by the hard wallet is verified by using the first authentication key, and information sent by the industry terminal is verified by the hard wallet by using a second authentication key generated by a security algorithm; and in response to a result that the bidirectional authentication verification is passed, the industry terminal executes an industry data rewriting operation on the hard wallet and completes the transaction service, and after the transaction service is completed, the industry terminal sends the transaction data to the hard wallet. And the transaction information is sent to the associated operation mechanism system through the industry background system, so that the associated operation mechanism system carries out payment transaction processing according to the transaction information.

Systems and methods for enabling secure and efficient interoperability between multiple blockchains, particularly for Central Bank Digital Currency (CBDC) issuance and transfer are described. This architecture allows independent blockchains, each managed by different financial institutions or authorities, to exchange digital assets using a unified cross-chain protocol. Key features include smart contracts for locking, minting, unlocking, and burning digital tokens, relayer subroutines for message transfer, and observer nodes for real-time monitoring and reconciliation. Multi-signature wallets ensure that critical actions require approval from multiple parties, enhancing security and compliance. The system supports both reversible and irreversible cross-chain transfers, dynamic load management, and upgradable smart contracts.

Method for managing payment transactions associated with a task completion includes receiving a service assignment and a digital coin value associated with the service assignment over a network from a first computing device associated with a first user, and sending the service assignment over the network for display on a second computing device associated with a second user. The method also includes receiving notification from the second user that the assigned service has been completed, and transferring digital coins equal to the digital coin value of the service assignment from a first digital wallet associated with the first user to a second digital wallet associated with the second user. The method further includes recording the transfer of the one or more digital coins in the digital coin ledger, and applying the one or more digital coins in the second digital wallet to acquire a purchase item.

Method for providing a ledger of verified nodes for a network of nodes in a quantum internet, comprising: / a / sending (101), by a central node (N-CH), first qubits (qb1) to a first node (N-U1) and second qubits (qb2) to a second node (N-U2), wherein each first qubit (qb1) is entangled with a second qubit (qb2); / b / sending (102), by the central node (N-CH), digital coins to each first node (N-U1) and each second node (N-U2); / c / saving (103) to a ledger: information regarding identities of the first, second and central nodes (N-U1, N-U2, N-CH), and information regarding a comparison of first information determined from the first qubits (qb1) to second information determined from the second qubits (qb2); and / d / if the first information corresponds to the second information, sending (105), by the first and second nodes (N-U1, N-U2), said digital coins back to the central node (N-CH).

The invention discloses a dynamic power distribution method for a charging pile, and relates to the technical field of electric vehicle charging, and the method comprises the following steps: deploying a block chain on a bidirectional charging pile, deploying a V2G authorization smart contract on a block chain network, uploading a real-time load signal and vehicle battery operation data to a block chain distributed account book, and transmitting the real-time load signal and the vehicle battery operation data to the block chain distributed account book; and screening discharging vehicles and generating a hierarchical power distribution instruction in combination with the V2G authorization smart contract, executing the hierarchical power distribution instruction through the discharging vehicles, automatically calculating a compensation amount according to the V2G authorization smart contract, and carrying out settlement transaction. Through combination of a V2G authorization intelligent contract and a dynamic grading power distribution strategy, V2G whole process data is recorded in a distributed account book, discharge grade groups are divided based on a battery state to optimize resource configuration, a compensation amount is automatically calculated, digital currency transfer is completed, and an efficient, transparent and safe charging pile power dynamic distribution method is realized.

Systems, methods, and computer-readable storage media of private network issuance of digital currency. One method includes receiving an issuance request associated with a first denomination of digital currency. The method further includes issuing a first digital currency token, wherein issuing is an off-chain exchange transferring the first denomination outside a digital currency ledger.

A secure payment transaction device, includes one or more monetary value tokens of a monetary value token system; a monetary value token management unit adapted to directly exchange monetary value tokens in transactions of the monetary value token system; an updating unit for updating data of the secure payment transaction device. An online authentication information of an online digital money system can be added to the secure payment transaction device via the updating unit thereby enabling use of the secure payment transaction device in the online digital money system.

Approaches are described for contingent transfers of value. A configuration record for an account associated with a virtual wallet is obtained. The configuration record is used to evaluate at least one virtual wallet of an owner account. Based on the configuration record, keys or other secret data and an authorization scheme can be determined and applied to virtual wallets that are part of a contingent contract. Thereafter, the virtual wallets can be utilized to exchange tangible and virtual digital currencies in various financial transactions, banking operations, and other asset exchanges and / or utilized for another purpose such as exchanging an irreversible transfer of value as in a virtual currency to a reversible transfer of value as in fiat currency or a financial instrument.

The embodiment of the invention provides an application program management method and system based on a digital currency hard wallet. The method comprises the steps that a proxy terminal receives a hard wallet application program and installs the hard wallet application program in a hard wallet, and the hard wallet application program supports industry application programs used in different industry scenes; the proxy terminal receives the hard wallet personalized data and writes the hard wallet personalized data into the hard wallet, and the hard wallet personalized data is provided by the wallet management server and comprises hard wallet data corresponding to the identity of the hard wallet and industry application data; the proxy terminal sends an execution result of the write-in operation, so that the wallet management server modifies the state of the corresponding hard wallet to be valid; the proxy terminal receives the industry application state change instruction and modifies the state of the corresponding industry application data in the hard wallet to be valid; and the proxy terminal sends an execution result, so that the wallet management server modifies the state of the corresponding industry application data to be valid. Through the method, the use of the hard wallet in a plurality of industry scenes can be supported.

The present invention relates to methods and systems for processing a payment transaction, and particularly for providing settlement of payment transactions. There is provided a computer implemented method for processing a payment transaction. The method comprises: receiving, at an issuer (210; 310; 410; 510; 602), a payment authorisation request (212; 326; 610) for a payment transaction (204; 320) between a payer (202; 302; 402; 502) and a payee (206; 306; 406; 606) initiated via a card payment network (214; 314; 414; 514), the payment authorisation request (212; 326; 610)comprising digital currency network details for a receiving party; comparing (332), at the issuer (210; 310; 410; 510; 602), payer digital currency network details with the receiving party digital currency network details, in order to determine if there is a common digital currency network between the payer (202; 302; 402; 502) and receiving party; and, in the event that the common digital currency network can be determined, instructing (420; 520) the payment to be settled via the common digital currency network.

Embodiments of the present invention provide a digital currency transaction method, apparatus, electronic device, and readable storage medium, relating to the field of digital currency technology. A specific implementation of the method includes: in the process of using a first digital currency wallet to conduct a digital currency transaction, determining a second digital currency wallet for reviewing the current transaction; sending pending review information for the current transaction to the second digital currency wallet and obtaining the review result; and determining whether to make payment and settlement for the transaction account corresponding to the current transaction based on the review result. According to an embodiment of the present invention, a digital currency transaction method capable of automatic approval is provided. After the approval process is completed, the payment process can be entered, thereby realizing the integrated automated processing of the approval process and the payment process during the digital currency transaction process, making the operation of digital currency-based transactions more convenient.

The present disclosure relates to a method for secure, traceable and privacy-preserving with anonymity revocation digital currency transfer to at least a first user from a second user among a plurality of banked and unbanked users by using a distributed ledger comprising a plurality of ledger nodes, wherein said users perform Digital Currency transfers by adding transactions on this ledger using user devices configured to be connected to said nodes, to a registration authority and to a revocation authority, said authorities owning each one a public / private key pair, comprising:an enrollment phase, performed by a user device of said first user, comprising:sending to the registration authority evidence of the first user's identity,generating a first user identification key pair comprising a first user identification public key and a first user identification secret key,sending to the registration authority said generated first user identification public key,receiving from the registration authority a signed token generated by the registration authority after the registration authority verified first user's identity based on said evidence, said signed token being generated by signing with the registration authority secret key a token comprising said first user identification public key and said first user's identity encrypted with said revocation authority public key,a transaction phase, performed by said user device of said first user, comprising: participating with said second users in a Digital Currency transfer transaction to be added to the distributed ledger,wherein said signed token enables the revocation authority to revoke first user's anonymity by retrieving first user's identity.

The invention discloses an Internet of Things intelligent water meter capable of working without power supply. A mechanical water meter has the functions of supplying water, metering, uniformly displaying water supply metering and closing a valve; the superposed circuit on the mechanical water meter has the functions of charging, fee display, management and valve opening; a valve capable of being automatically closed without electricity when control is not added is installed on a water supply channel in the water meter, the condition that water charge closed-loop management water supply conditions are not met when water charge is not received, the valve is attacked and damaged, mechanical faults, circuit faults and battery power shortage and shortage are caused, and the valve is automatically closed without electricity after one round of water supply is completed; the circuit converts the supplied water volume physical quantity into the collected electronic digital currency quantity in each round of water supply process, and the water meter is recovered to a new round of water supply initial state after charging; closed-loop payment exchange between physical goods and electronic currency is realized; the mechanical / electronic double-metering and double-display mode that mechanical metering of an existing electronic water meter is electromechanically converted into electronic metering and then secondarily converted into electronic currency is changed; and no pulse equivalent exists.

A method for preventing the double-spending of digital currency that transfers between multiple distributed ledger technology (DLT) networks. The method includes detecting a request to transfer a first digital currency from the a DLT network of a first type to a second DLT network of a second type. The method further includes, in response to an indication from an exchange node that the first digital currency is to be destroyed, destroying the first digital currency from the first DLT network. The method further include creating a second digital currency on the second DLT network. Creating the second digital currency on the second DLT network further includes attaching a serial number to the second digital currency.

Approaches are described for contingent transfers of value. A configuration record for an account associated with a virtual wallet is obtained. The configuration record is used to evaluate at least one virtual wallet of an owner account. Based on the configuration record, keys or other secret data and an authorization scheme can be determined and applied to virtual wallets that are part of a contingent contract. Thereafter, the virtual wallets can be utilized to exchange tangible and virtual digital currencies in various financial transactions, banking operations, and other asset exchanges and / or utilized for another purpose such as exchanging an irreversible transfer of value as in a virtual currency to a reversible transfer of value as in fiat currency or a financial instrument.

The present invention provides a public transportation smart card recharge method, system, and composite wallet. The method comprises: the composite wallet establishes communication with the public transportation smart card and sends a recharge initialization request to the public transportation smart card. After receiving the returned recharge initialization response, the composite wallet sends the digital currency corresponding to the recharge amount to the public transportation front-end device. The public transportation front-end device stores the digital currency and sends the recharge information to the public transportation platform. The public transportation platform generates transaction information and returns a recharge confirmation response to the composite wallet. The composite wallet completes the recharge operation on the public transportation smart card. The method is compatible with existing public transportation smart cards and achieves the purpose of completing recharge using digital currency.

The present invention discloses a method, terminal, and system for splitting digital currency during a transaction, relating to the field of computer technology. A specific implementation of the method includes: determining a first transaction request indicating digital currency and first transaction information, the first transaction information including a first transaction amount; generating second transaction information including a second transaction amount based on the first transaction information; signing the first transaction information and the second transaction information using a private key of a first terminal; generating a first trust chain based on the signed first transaction information and the digital currency, and generating a second trust chain based on the signed second transaction information and the digital currency; and transmitting the first trust chain to a second terminal, so that the second terminal and the first terminal can conduct an offline transaction corresponding to the first transaction amount based on the first trust chain. This implementation facilitates offline transactions using digital currency while improving the security of offline transactions.

The provided are a digital currency wallet management method, apparatus, and system, remote control method, apparatus and system for a digital currency wallet which relate to the field of computer technologies. A method includes: detecting a connection state with a digital currency platform; obtaining a current moment by means of a communication satellite in a case that the connection state with the digital currency platform indicates an offline state; calculating an offline duration according to the current moment and a self-saved last synchronization moment; determining whether the offline duration is greater than a preset offline duration; and in a case that it is determined that the offline duration is greater than the preset offline duration, generating a wallet key information set, and sending the wallet key information set to the digital currency platform, so that the digital currency platform synchronizes and processes the wallet key information set.

The application discloses a kind of digital currency wallet security synchronization method, it is characterized in that processing step includes: step one: digital currency system carries out dynamic data authentication to the digital currency wallet terminal of application synchronization, and authentication process is as follows: first, digital currency system sends time stamp and unpredictable number to digital currency wallet terminal, the beneficial effects of the present application: the above technical scheme can well solve the user data security of wallet end when digital currency wallet synchronization, and data interaction security between wallet and digital currency system.Based on this scheme, users can carry out digital currency wallet security synchronization "anytime, anywhere" through mobile phone APP or receiving terminal.And, since scheme has the man-machine interaction confirmation of user when synchronization operation, therefore, users can safely carry out synchronization operation by the mobile phone or receiving terminal of third party, and it has very important significance to the real-time, convenience and security of digital currency wallet synchronization application.

The embodiment of the present disclosure discloses an identity information acquisition method, an operation service end and a system. The method comprises the following steps: a digital currency system generates a pull parameter acquisition request; the digital currency system sends the pull parameter acquisition request to an operation service end associated with a user wallet, so that the operation service end generates a ticket identifier acquisition message, and acquires a ticket identifier from an identity authentication service end based on the ticket identifier acquisition message; the digital currency system acquires an authorization code from the identity authentication service end according to a pull parameter response; the operation service end sends an encrypted access token acquisition request and an encrypted identity information acquisition request to the identity authentication service end, so that the identity authentication service end returns identity information of the user wallet according to a to-be-acquired identity information list. The embodiment of the present disclosure uses the mechanism of "authorization code" and "access token", effectively acquires user identity information, and guarantees the safe and stable operation of the digital currency system.

The present invention relates to the field of digital currency payment. Disclosed are a balance inquiry and display method and apparatus. A specific embodiment of the method comprises: in response to a balance inquiry operation, acquiring wallet information from a target hardware wallet that has established a connection with a terminal; on the basis of the wallet information, sending a balance inquiry request to a background system, such that the background system verifies the target hardware wallet and then returns the latest balance information of the target hardware wallet and a display instruction to the terminal; and if still in a connected state with the target hardware wallet, sending the latest balance information and the display instruction to the target hardware wallet, such that the target hardware wallet displays the latest balance information. The embodiment provides users with an intuitive and convenient way to make a balance inquiry.

The application discloses a remote control method, device and system of a digital currency wallet, and relates to the technical field of computers, and is applied to a digital currency platform. A specific embodiment of the method comprises the following steps: setting a remote control trigger condition according to business security requirements, generating a remote control instruction when the remote control trigger condition is met, sending the remote control instruction to a Beidou satellite system, receiving a remote control instruction sent by the digital currency platform, encoding the remote control instruction according to a Beidou message protocol to obtain a target message, forwarding the target message to a target digital currency wallet terminal in an offline state according to a wallet number, receiving the target message forwarded by the Beidou satellite system, decoding the target message to obtain the remote control instruction, and performing corresponding operations according to an operation mode indicated by the remote control instruction, so as to realize remote control in an offline state. The embodiment improves the safety factor of the digital currency wallet terminal and improves the remote control effect.

The embodiment of the invention provides a key management method and device for a digital currency wallet. The method comprises the following steps: receiving a generation instruction sent by a user and used for generating the digital currency wallet; according to the generation instruction, randomly selecting a set number of randomly sorted target questions from a preset question database; receiving a target answer of the target question sent by the user; according to the target answer, generating an assistant word of the digital currency wallet; generating a private key of the digital currency wallet according to the memorizing word; generating a public key and a wallet address of the digital currency wallet according to the private key; wherein the preset question database is obtained through the following processes: receiving a target question set; and obtaining the preset question database according to the target question set. According to the embodiment of the invention, the problems of difficult memorization and high loss risk of the memorizing word can be solved.