438 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 invention discloses a digital currency transaction system based on an iris and a block chain, and the system comprises an iris registration module which is used for collecting an iris image, extracting an iris feature vector based on a deep hash network, and generating a unique identity label; the iris identity authentication module is used for extracting a current iris feature and calculating an identity hash value when a digital currency transaction request is obtained; the anti-counterfeiting iris detection module is used for detecting a texture abnormal condition of the current iris feature based on the anti-counterfeiting sample detection module, and confirming the validity of the iris when the detection is passed; and the transaction validity verification module is used for verifying the validity of the digital currency transaction based on zero-knowledge proof verification. Based on the iris features and the block chain technology, the defects of traditional digital currency in the aspects of identity authentication, account security and privacy protection are overcome.

There is provided a computer-implemented method for facilitating a transfer of funds of a selected digital currency, the funds being transferred from one of a plurality of payer digital wallets, each of the plurality of payer digital wallets configured to store funds defined by a respective different one of a plurality of digital currencies.

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.

The invention discloses a digital currency payment method, chip, device and system, and relates to the technical field of digital currency. A specific embodiment of the method is applied to a chip comprising a security element, a first communication component and a second communication component, the security element is used for opening a digital currency hard wallet, a communication protocol adopted by the first communication component comprises a near field communication protocol and / or a confinement communication protocol, and the second communication component is used for opening a digital currency hard wallet. A communication protocol adopted by the second communication component comprises a Bluetooth communication protocol; the method further comprises the following steps: receiving hard wallet opening data sent by the digital currency client by using the second communication component, and opening a digital currency hard wallet in the secure element; and receiving the payment request by using the first communication component, and performing the digital currency transaction. According to the embodiment, the problem of application limitation existing in near field communication payment is solved, and the application scene of near field communication payment is effectively expanded.

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.

The present invention discloses a digital currency transaction method, transaction management method, device and system, and relates to the field of computer technology. A specific implementation of the method includes: obtaining a transaction request; signing the transaction data in the transaction request using a proxy signature private key, the proxy signature private key is generated according to the first authorization information sent by the issuance management platform and the private key of the first terminal; sending the signed transaction data and the user certificate to the second terminal, so that the second terminal verifies the signed transaction data according to the issuance certificate and user certificate corresponding to the issuance management platform; the user certificate is generated by the operation management platform according to the second authorization information sent by the issuance management platform and the public key of the first terminal; and when the verification is passed, the transaction is conducted with the second terminal. This implementation enables the digital currency issuer to directly supervise the digital currency wallet terminal, thereby improving the security of digital currency transactions.

Embodiments of the present invention are directed to methods and systems for managing a cryptocurrency payment network comprising one or more issuer nodes and one or more distributor nodes. Issuer nodes may be granted different rights from distributor nodes with respect to the issuance and distribution of digital currency within the cryptocurrency payment network. A management system server computer may generate unique node verification key pairs for each node in the cryptocurrency payment network, where the node verification key pairs may be used to identify and authenticate issuer nodes and distributor nodes.

The invention discloses a management method and device of a digital currency hard wallet, and relates to the technical field of computers. A specific embodiment of the method comprises the following steps: in response to a management request of a digital currency hard wallet, establishing communication connection with a user identification card, and obtaining first hard wallet information corresponding to the user identification card; comparing the first hard wallet information with second hard wallet information displayed on a digital currency application page to perform account information verification; and under the condition that the account information verification is passed, entering a hard wallet function management page, and managing the second hard wallet through the hard wallet function management page. According to the implementation mode, account consistency verification and management on the hard wallet based on the relevant information of the hardware carrier user identification card of the digital currency hard wallet are realized, the management mode of the digital currency hard wallet is simplified, and the management and use safety of the hard wallet is improved.

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.

The invention discloses a transaction method and device based on a red envelope and electronic equipment, and relates to the technical field of digital currency. A specific embodiment of the method comprises the following steps: receiving a transaction request sent by a point-of-sale terminal, wherein the transaction request carries a transaction amount, a wallet number of a payee and a wallet number of a payer; querying and acquiring a red envelope account associated with a hard wallet of the payer according to the wallet number of the payer, wherein the red envelope account is used for receiving a red envelope; and in response to the fact that the transaction request is matched with the use rule of the red envelope, paying digital currency corresponding to the transaction amount to the wallet corresponding to the wallet number of the payee based on the wallet corresponding to the wallet number of the payer and the red envelope account. According to the embodiment, the technical problem that existing red envelope processing logic cannot meet market requirements can be solved.

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.

As disclosed herein is a novel cryptocurrency payment platform and a method of use thereof. The cryptocurrency payment platform includes an application programming interface (API) that allows for the recipient of a cryptocurrency payment from a payor to be able to accept a payment that is different from the amount of cryptocurrency invoiced. The platform also provides the recipient the ability to make programmatic decisions whether to accept or refund cryptocurrency amounts and provide, via the API, the ability to then accept or refund the cryptocurrency. The cryptocurrency payment platform API further permits merchant to be made aware when a late payment has been made, become informed of the amount in fiat currency that the late payment is worth at that point in time, and provide the ability to accept or refund the cryptocurrency.

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.

Systems, methods and computer-readable storage media utilized to create and perform an automated escrow contract on a distributed ledger network. One method comprises creating, by a first user of the distributed ledger network, the automated escrow contract on the distributed ledger network by providing contract information specifying an offer. The method further comprises accepting, by a second user of the distributed ledger network, the offer by providing a payment amount of a digital currency unit to the automated escrow contract on the distributed ledger network. The method further comprises confirming, by the second user, that the automated escrow contract has been completed. The method further comprises releasing, by the automated escrow contract, the payment amount of the digital currency unit from the second user to the first user.

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.

A system having a memory and a processor communicatively coupled to the memory and configured to generate digital currency units, wherein each of the digital currency units comprises an indication of a benefit associated with the corresponding digital currency unit, create blocks of a distributed ledger, wherein each block corresponds to one of the digital currency units, wherein each block records the indication of the benefit corresponding to one of the digital currency units, communicate each block to a distributed ledger responsive to exchange of the digital currency unit corresponding to each block, register and validate a user and issue a first one of the digital currency units to the user, wherein the issuing the first one of the digital currency units to the user comprises recording information related to the user on a blockchain responsible for the first one of the digital currency units.

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.