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123
resultados
Última actualización
05/05/2025 [07:28:00]
Resultados 25 a 50 de 123
Resumen de: US2025141693A1
Computer-implemented methods for locking a blockchain transaction based on undetermined data are described. The invention is implemented using a blockchain network. This may, for example, be the Bitcoin blockchain. A locking node may include a locking script in a blockchain transaction to lock a digital asset. The locking script includes a public key for a determined data source and instructions to cause a validating node executing the locking script to verify the source of data provided in an unlocking script by: a) generating a modified public key based on the public key for the determined data source and based on data defined in the unlocking script; and b) evaluating a cryptographic signature in the unlocking script based on the modified public key. The blockchain transaction containing the locking script is sent by the locking node to the blockchain network. The lock may be removed using a cryptographic signature generated from a private key modified based on the data.
Resumen de: WO2025088295A1
A system and computer-implemented method of processing a blockchain transaction request. The method comprises initiating, by an application, a blockchain transaction request; transferring, from the application to a specific node of the blockchain, a token request relating to the transaction request and including a hash-based signature associated with the application, and transferring, from the specific node to an authenticator, the token request. The authenticator receives the token request and attempts to verify it. Upon verifying the token request, it generates a token using a private key associated with the application and transfers the token to the specific node. The token is transferred from the specific node to the application and embedding, by the application, the token in the transaction request. The transaction is signed by the application to generate a signed transaction, and the signed transaction is transferred to the specific node for progressing its execution the blockchain.
Resumen de: EP4546718A2
The invention relates to distributed ledger technologies such as consensus-based blockchains. Computer-implemented methods for reducing arithmetic circuits derived from smart contracts are described. The invention is implemented using a blockchain network, which may be, for example, a Bitcoin blockchain. A set of conditions encoded in a first programming language is obtained. The set of conditions is converted into a programmatic set of conditions encoded in a second programming language. The programmatic set of conditions is precompiled into precompiled program code. The precompiled program code is transformed into an arithmetic circuit. The arithmetic circuit is reduced to form a reduced arithmetic circuit, and the reduced arithmetic circuit is stored.
Resumen de: EP4546244A1
An information processing method causing a computer to execute processing of acquiring demand-supply information related to demand or supply for crypto assets on a block chain system; and restricting, based on acquired demand-supply information, a transfer quantity of tokens that can be converted into the crypto assets held by a user.
Resumen de: CN119213730A
The present disclosure implements a digital token with a set of asset-specific attributes, where the set of asset-specific attributes is modifiable or capable of receiving new asset-specific attributes at least after issuing the digital token with the set of asset-specific attributes on a blockchain-based token platform. The functionality may be implemented with a digital token containing an attribute component having a set of key-value pairs populated with a subset of the asset-specific set of attributes, where the set of key-value pairs is programmed to be modified or added with new key-value pairs after issuing the digital token on the blockchain-based token platform.
Resumen de: EP4546805A1
Provided is a content generation apparatus capable of reducing a processing load of generating a hash value to be registered in a blockchain in a configuration using audio data in video files.An image pickup apparatus 102 generates a video file including video data, audio data, and metadata, and generates a hash value from the audio data and the metadata. The image pickup apparatus 102 transmits the video file and the hash value to a management system 101 that registers the hash value and the metadata in a blockchain.
Resumen de: EP4546243A1
Provided is a consideration distribution program causing a computer to execute processing including: for each process included in a supply chain, recording process information that includes a value of the process and identification information for specifying a process performed immediately before the process over a blockchain; and referring to the process information and process information of the process performed immediately before specified from the identification information, and distributing a consideration to the process and the process performed immediately before.
Resumen de: CN119452386A
The present invention relates to mass fund raising for innovations, including distributing proposals having a description of a project thought, an amount of funds requested, and a time range for raising the funds. The ownership of the project is transferred to or between entities that receive the funds from the investor, and for each of the received funds, convert the funds to a corresponding amount of virtual money, perform blockchain operations on the money, and add the funds to the funds. A blockchain operation is performed on the virtual currency to uniquely identify and track the virtual currency, thereby establishing a confidence for transactions between the investor and the entity or between the entities. If the financing target is completed within the time range, the entity converts the currency to a legal currency and releases money to the requester. After completion of the project, one or more entities determine whether the project is successful and may commercialize the successful project. For certain successful items, the one or more entities may also allocate funds to the investor.
Resumen de: CN119487786A
A system, method, and computer program product are provided for preventing MEV attacks in a blockchain network. The system includes at least one processor programmed or configured to communicate a plurality of digests to each of a plurality of mining nodes in a blockchain network, each abstract in the plurality of abstracts is generated on the basis of a transaction request including transaction data under the condition that the transaction data is not included in each abstract; receiving, from at least one of the plurality of mining nodes, block data generated based on a proof-of-work protocol and at least a portion of the plurality of digests; requesting the transaction data for each of a plurality of transaction requests corresponding to the at least a portion of the digest; and publishing a new block to the block chain network based on the transaction data and the block data.
Resumen de: WO2025084724A1
A method and a system for verifying a signature in a blockchain consensus process are provided. The method for verifying a signature, according to an embodiment of the present invention, comprises steps in which: a specific validator node in a blockchain system receives a request message for a signature verification operation of transactions in a block received from another validator node; and the validator node that received the request message performs the signature verification operation on the transactions in the received block. Therefore, the signature verification operation can be skipped.
Resumen de: WO2025085166A1
Systems, methods, and computer program products for tracking funds transfers are provided. A system includes at least one processor of an administrative node in a blockchain network, the at least one processor programmed to establish a unified ledger stored by a plurality of nodes of the blockchain network, receive transaction data for a plurality of transactions processed by a plurality of different systems via an interoperable protocol while each transaction of the plurality of transactions is being processed between at least two systems of the plurality of different systems, store, in the unified ledger, the transaction data, and automatically monitor the transaction data in the unified ledger to detect anomalous transactions.
Resumen de: WO2025085385A1
Systems and methods for novel uses and/or improvements to blockchains and blockchain technology. As one example, systems and methods are described herein for self-validating digital records that may be transferred in real-time through a cross-network registry. For example, in a conventional system, minting a token (e.g., a digital record) involves writing a self-executing program that defines the transfer rules of the digital record. Once the self-executing program is written, it is deployed on a blockchain, and the digital record is minted by publishing it to a blockchain.
Resumen de: WO2025085178A1
A system and method for enabling dynamic expiration dates in a payment card. An algorithm executes on a computing device to create a private blockchain that is controlled by an inquiry block exchange. A payment card holder (PCH) metablock is generated when a first payment card issuer creates a PCH profile. This PCH profile is maintained within a security zone on the network. The security zone comprises multiple modules. These modules include a dynamic smart contract (DSC) execution engine module for generating a DSC hash value that identifies the DSC for the PCH profile metablock. A hyper-ledger fabric module enables dynamic parameters to be stored as an asset in the DSCs. A metablock generator module creates a PCH profile metablock and hashes the data in a subscribed hashing algorithm. The hashed data includes private keys and cryptographic keys in a secured element section of the PCH profile metablock.
Resumen de: US2025130623A1
An embodiment registers a node and a data object on a blockchain. The embodiment schedules by a Scheduler an object task associated with the data object in a Data Controller, generating a task execution token by the Data Controller on the blockchain where the task execution token is associated with the object task. The embodiment senses the task execution token by the node received from the Data Controller; responsive to the sensed task execution token executes the object task on the node and generating a node energy consumption metric and an energy consumption token of the object task on the blockchain. The embodiment also sends the energy consumption token to the Data Controller from the node causing a smart contract to compute a task energy consumption metric based on the node energy consumption metric where the data object on the blockchain is updated with the task energy consumption metric.
Resumen de: WO2025083702A1
The present invention provides a decentralized electricity trading platform200 architecture comprising a plurality of prosumers, having an access to the blockchain network to provide a peer-to-peer transaction based on a consensus The decentralized electricity trading platform 200 architecture includes one or more layers to enable the transaction. The layers of the decentralized electricity trading platform200 includes (i) A smart contract layer 204 having decentralized self-executing smart contracts 210(a), 210(b) for receiving the real- time power demands and supply from one or more prosumer and is configured to perform one or more transaction, (ii) A Physical and Optimization Layer (POL) 202 in communication with the contract layer, to perform optimizations for reaching a consensus between prosumers and (iii) A monetary settlement layer (MSL) 206 in communication with the digital contract layer to execute monetary transaction after execution of one or more smart contracts.
Resumen de: WO2025081741A1
A joint risk control method based on a blockchain and a generative adversarial network. In the method: in a trusted execution environment, a generative adversarial network model is used to train local data of a bank, e-commerce enterprises, and Internet companies to obtain virtual data of the bank, the e-commerce enterprises, and the Internet companies, and a local differential privacy algorithm is used to protect intermediate parameters generated in a training process of the generative adversarial network model; then, blockchain nodes collect the virtual data to jointly train a logistic model; finally, the bank uses the logistic model to predict whether a user has a default behavior. Further disclosed is a joint risk control system based on a blockchain and a generative adversarial network.
Resumen de: WO2025081569A1
Disclosed in the present application are an access control system and method, and an electronic device, which are used for solving the problem of data being unavailable or data being accessed without authorization caused by a single-point failure in ABAC. The access control system comprises: a DU, a PEP, a blockchain and a smart contract, wherein the blockchain is used for sending a ciphertext hash value and a ciphertext storage address to the DU after receiving consent information which indicates consent for AR access or validity information which indicates that a multi-signature is valid, the consent information being sent by the PEP or the DU on the basis of an evaluation result which is obtained after an AR is evaluated by the smart contract, and the validity information being sent by the PEP or the DU on the basis of the multi-signature which is generated for the AR by the blockchain by means of an ASM algorithm; and the DU is used for acquiring ciphertext and a random number on the basis of the ciphertext storage address after receiving the ciphertext hash value and the ciphertext storage address from the blockchain, performing legitimacy verification by means of a PCH algorithm, and using the ciphertext once it is determined that the ciphertext, the random number and the ciphertext hash value are legitimate.
Resumen de: WO2025081233A1
A system and method for processing of organic waste, the system comprising: a converter reactor (such as having pyrolytic characteristics); an input waste feed material identification subsystem; one or more energy generators; one or more sensors for acquiring at least processing data; a communication bus for remote monitoring and control of the system; and artificial intelligence agents for making localised decisions (and optionally remote decisions) The system is configured to autonomously select or control the processing according to at least the identity of the waste feed material, and the system is configured to be controlled according to at least the processing data. The system may be equipped with or configured to be controlled according to smart contracts within blockchain digital ledgers that may be connected to a carbon trading exchange.
Resumen de: US2025131994A1
Embodiments described herein provide for a healthcare ecosystem of computing devices participating as nodes of a distributed ledger (e.g., blockchain). The distributed ledger includes NFTs representing corresponding patients, where the initial NET behaves logically as a token scaffold that represents a “digital twin” of the particular patient. The initial patient token represents personal profile data of patient personal data for the patient. The nodes may generate new data and/or new sub-tokens (or other blockchain entry type) representing new data, which the nodes associate with the token scaffold. The sub-tokens contain data for representing physical or digital specimens, health data, and data derived from the health data (e.g., cell lines, organoids, other model systems). As the nodes generate and associate new sub-tokens to the patient's token scaffold over time, the token scaffold graphs and facilitates integration of patient-specific data and evolves into a robust electronic health record (EHR) and digital twin.
Resumen de: US2025131493A1
The present disclosure provides a financial services platform and method of transferring funds using a financial services platform. The platform may comprise a plurality of rails. The plurality of rails may be based or built on a blockchain. The plurality of rails may be configured to enable a plurality of financial transactions comprising direct deposits, money transfers, debits, financed purchases, and point of sale loans between a plurality of parties. The platform may further comprise an application for implementing the plurality of rails. The application may be executable on a plurality of devices and comprises a graphical interface for facilitating the financial transactions between the plurality of parties. At least one of the financial transactions may be completed by using a visual code that is indicative or representative of a transaction amount or settlement between a first part and a second party.
Resumen de: US2025131825A1
A decentralized control system for the intra-fleet and/or inter-fleet, at least partially self-organized, control of a network formed at least by vehicles comprises a decentralized consensus module, which is designed for transmitting mobility orders, in particular network-external or network-internal transport orders or service provision orders, and/or mobility offers, in particular transport offers or service provision offers, of vehicles of the network, in each case in the form of smart contracts within a distributed ledger technology (DLT), such as a directed acyclic graph (e.g. an IOTA tangle) or a blockchain, to more than one terminal, the terminals being respectively assigned to vehicles of the network.
Resumen de: US2025131425A1
Systems and methods for establishing a secure and private local network with a block chain record are disclosed. One disclosed method includes establishing a network connection between a first device, second device, and third device. The method includes configuring a local network in communication with the first device, second device, and third device and establishing a block chain between the first, second, and third devices. The first, second, and third devices are nodes of the block chain and execute consensus protocols to maintain consistency of the block chain. Messages sent between the devices on the local network are stored in the block chain and when the local network is disbanded, the devices upload the block chain to a cloud repository.
Resumen de: US2025131423A1
A system and method for enabling dynamic expiration dates in a payment card. An algorithm executes on a computing device to create a private blockchain that is controlled by an inquiry block exchange. A payment card holder (PCH) metablock is generated when a first payment card issuer creates a PCH profile. This PCH profile is maintained within a security zone on the network. The security zone comprises multiple modules. These modules include a dynamic smart contract (DSC) execution engine module for generating a DSC hash value that identifies the DSC for the PCH profile metablock. A hyper-ledger fabric module enables dynamic parameters to be stored as an asset in the DSCs. A metablock generator module creates a PCH profile metablock and hashes the data in a subscribed hashing algorithm. The hashed data includes private keys and cryptographic keys in a secured element section of the PCH profile metablock.
Nº publicación: US2025131420A1 24/04/2025
Solicitante:
UHUPAY GMBH [DE]
UhuPay GmbH
Resumen de: US2025131420A1
The present invention relates to a system for processing the signing of a blockchain transaction, the system comprising: a) a digital storage medium configured to store a portion of an access-key for signing blockchain transactions; and b) a signature terminal comprising an input means configured to receive an input representative for the remaining not-stored part of the access-key to complete the signature, wherein a transaction to be signed on a blockchain is signed by a signing module based on a combination of the stored part of the access key on the digital storage medium and the input by the input means of the signature terminal.
BOPI
Sede Electrónica
