620 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.

A computer implemented method of decomposing a blockchain comprising transactions in digital currency for analysis and display is described. The method comprises first determining a range of blocks in the blockchain. Each block in the range of blocks in the blockchain is then unpacked into a table comprising one or more rows of input and output data for each transaction stored in the block. For the range of blocks in the blockchain, entity information and transaction information are then aggregated into a block analysis table. A node of a computing network and a computer program product adapted for implementation of such a method are also described.

Systems, methods, and computer-readable storage media of configuring digital currency nodes utilizing a one-tier model or two-tier model. One method includes transmitting, via an application provider system, an installation request including authentication information, downloading, by the user device, a digital wallet application, and installing, by the user device, the digital wallet application based on one or more system requirements, wherein installing includes verifying the user device meets the one or more system requirements, generating a public and private key pair, hardening the user device, storing and configuring the digital wallet application, and authenticating the digital wallet application. The method further includes establishing, via a private network, a private network connection associated with digital currency issuance. Another method includes transmitting a registration request, receiving a software package including a software appliance and executable code, installing the software appliance and establishing a private network connection associated with digital currency issuance.

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.

The Central Bank Digital Currency (CBDC) introduced here is software only and anonymous—yet aggregation of amounts larger than those issued each user is thwarted. Each user has the ability to undo the anonymity of any value they should obtain, and this ability is in effect irrevocable even if the user wishes to give it up, which makes value obtained from multiple users risky to hold or spend. If the value issued a user has already been spent by someone other than the user, for instance, the user can at least reveal where it was spent; but if the value is not already spent, the user can spend it first thereby preventing anyone from spending it later.

Sensor data may be captured by at least one sensor in communication with at least one processor. The at least one processor may extract biometric data from the sensor data and compare the biometric data with stored biometric data for a first user stored in a memory in communication with the at least one processor. The at least one processor may determine that the biometric data matches the stored biometric data based on the comparing. The at least one processor may execute a transaction between the first user and a second user, the transaction comprising an exchange of digital currency between the users. The at least one processor may create a block in a distributed blockchain, the block comprising data memorializing the at least one transaction including information describing the exchange of the digital currency and at least one of the biometric data and the stored biometric data.

Embodiments of the present disclosure are directed to a photonic implementation of a processor for keys update and hash generation for digital currency (e.g., bitcoin) transactions. The processor includes a first photonic circuit and a second photonic circuit coupled to the first photonic circuit via a set of optical connections. The first photonic circuit is configured to generate a plurality of new messages based at least in part on a plurality of input messages. During a plurality of operational cycles, the second photonic circuit is configured to receive, from the first photonic circuit via the set of optical connections, the plurality of new messages, and update a plurality of keys based at least in part on the received plurality of new messages. The second photonic circuit is further configured to generate at least one hash value based on the plurality of keys generated after the plurality of operational cycles.

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 invention discloses a multiple security verification method and platform for digital currency transactions, and relates to the technical field of security verification, and the method comprises the steps: carrying out the analysis of a transaction contract, obtaining a full-period transaction node, and constructing a transaction block chain; multiple verification means of at least two parties participating in the transaction are collected; according to the period setting risk of the full-period transaction node and the risk of the transaction amount, configuring the risk security level of each period transaction node; setting multiple security verification channels according to the risk security level; obtaining a multi-verification result according to the longitudinal transaction level dimension and the transverse multi-verification dimension, and extracting a transaction state according to the transaction block chain; and performing transaction execution on the multiple verification results according to the transaction state. According to the invention, the technical problems of insufficient security and single verification process during digital currency transaction verification in the prior art are solved, and the technical effect of improving the security and flexibility of digital currency transaction is achieved.

The provided are a method, terminal, and system for updating a digital currency wallet, and relates to the field of computer technology. A specific implementation of the method includes: sending, based on user trigger, a query request about whether the digital currency wallet needs to be updated to a trusted platform; receiving a query result returned by the trusted platform; in the case that the query result indicates that the digital currency wallet needs to be updated, withdrawing a digital currency from the digital currency wallet, synchronizing offline transaction data of the digital currency wallet, and sending an update request to the trusted platform; receiving a target update instruction sent by the trusted platform, wherein the target update instruction indicates account data corresponding to the digital currency wallet; and updating the digital currency wallet based on the account data indicated by the target update instruction.

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 Diithium rapid side channel attack analysis method, which belongs to the technical field of information security, and comprises the following steps of: detecting leakage by adopting a Gaussian mixture difference method to complete detection and selection of feature points; the signature information is used to classify the actual leakage in which the private key participates, and the distribution difference is used to recover the normal domain private key. According to the method, the problem of high time overhead under small sample leakage of the existing non-template attack is solved. A complete private key can be recovered within a few minutes at a high noise level by using side information leakage generated by a small amount of signatures. Compared with an existing leakage detection method, the Gaussian mixture difference method can complete detection and selection of feature points without obtaining a sensitive intermediate value. The method can be used for detecting whether the password equipment and the password chip are safe and reliable or not, such as the fields of bank cards of financial economy, physical digital currency cards, mobile phone chips of mobile communication and the like, so as to detect whether the equipment has security risks or not.

An electronic system for calculating and mining digital currency using circuit layout optimized for power consumption, performance level, and integrated circuit surface area. A circuit simulation system simulates and evaluates circuit layouts retrieved from a circuit database to identify circuit parameters to compare against threshold values. The circuit simulation varies operational parameters of the circuits simulated to evaluate the active circuit parameters. The operational parameters include voltage levels, clock frequencies, thermal characteristics, and layout characteristics of dedicated components and sub-modules. The active circuit parameters include the effective hash rate, power, performance, and surface area.

Methods and systems for managing programmable currency-based transactions through nested smart contract-based wallets are disclosed. Method performed by a server system includes receiving fund transfer of a digital currency associated with a smart contract including a set of predefined instructions from a first wallet to a second wallet. Method includes determining a transaction category of the digital currency based on the set of predefined instructions. Transaction category indicates purpose of the fund transfer as per the smart contract. Method includes generating and depositing the digital currency to new sub-wallet(s) associated with the second wallet based on the transaction category of the digital currency. Each of the new sub-wallet(s) is eligible to hold the digital currency for a specific transaction category. Alternatively, the method includes depositing the digital currency to preexisting sub-wallet(s). Each of the preexisting sub-wallet(s) is eligible to hold the digital currency for the specific transaction category.

Systems, methods, and computer-readable storage media of configuring digital currency nodes utilizing a one-tier model or two-tier model. One method includes transmitting, via an application provider system, an installation request including authentication information, downloading, by the user device, a digital wallet application, and installing, by the user device, the digital wallet application based on one or more system requirements, wherein installing includes verifying the user device meets the one or more system requirements, generating a public and private key pair, hardening the user device, storing and configuring the digital wallet application, and authenticating the digital wallet application. The method further includes establishing, via a private network, a private network connection associated with digital currency issuance. Another method includes transmitting a registration request, receiving a software package including a software appliance and executable code, installing the software appliance and establishing a private network connection associated with digital currency issuance.

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.

The invention provides a digital currency multi-level hardware wallet transaction method, medium and system, and belongs to the technical field of digital currency transaction methods, and the method comprises the steps: firstly, deriving a business group mother wallet key for a hardware wallet group based on a central bank key and an operation mechanism key, and enabling the business group mother wallet key to be used for managing the creation, revocation and validity period of a sub-key; and then, generating a sub-wallet key through the mother wallet key, and writing the sub-wallet key into a hardware wallet medium to serve as a digital currency transaction terminal. In addition, a sub-hardware wallet program is written to the hardware wallet medium, including collection and fund collection functions. In the transaction process, a child wallet program firstly verifies a payer certificate and transaction assets, completes collection, destroys the collected assets, creates an equal-amount new currency string, and encrypts and locks the same-amount new currency string through a public key of a female wallet key. And finally, a fund collection scheme is optimized by applying a simulated annealing algorithm, a collection process is executed, and the problem of low efficiency of a traditional one-to-one collection mode when the number of sub-wallets is large is solved.

The invention provides a secure neutral digital currency intelligent contract implementation method, which belongs to the technical field of digital RMB, and comprises the following steps: firstly, obtaining a creation instruction containing wallet addresses, protocol rules and transaction amount of two transaction parties; a unique service identification number is generated by constructing a message containing a protocol abstract, public keys of both parties, a rule and effective time and performing private key signature verification. Then, fragmentation processing is carried out on the smart contract private key, and a key distribution matrix is constructed; and based on an inadvertent transmission algorithm, the secret key fragments are randomly distributed to receivers. And constructing a digital currency account and transferring protocol funds, and when a contract execution condition is triggered, verifying and sending the key fragment by the service participant. And reconstructing a private key through a Lagrange interpolation algorithm, unlocking a digital currency account, completing fund transfer, and finally destroying related key information. The technical problem that the security of digital currency assets and the neutrality of contract operation are difficult to guarantee in the prior art is solved.

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.

The invention discloses a double-offline continuous transaction verification method, system and device for digital currency. The method comprises the following steps: acquiring related information of two transaction parties in a transaction relationship; calling an intelligent contract for generating a transaction voucher, and generating a target transaction amount transaction voucher of the payee through any two random points on the ECC curve based on the random number and the target transaction amount; obtaining an input voucher and a payer change voucher based on the transaction voucher, and carrying out continuous transaction verification on the transaction amount based on the input voucher and the payer change voucher in combination with a preset continuous transaction model; if the transaction amounts involved by the two transaction parties are the same, performing Hash calculation on the random number and the transaction data to obtain a payer signature and a payee signature; and obtaining a transaction signature based on the payer signature and the payee signature, obtaining a zero sum result based on the transaction signature, and if the zero sum result satisfies a preset condition, determining that the transaction relationship is valid. According to the invention, the transaction efficiency is obviously improved, and the time required by the transaction is greatly shortened.

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.