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126
resultados
Última actualización
04/05/2025 [07:28:00]
Resultados 25 a 50 de 126
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: WO2025090991A1
A blockchain-based intellectual property ("IP") asset fractional payment system and method that facilitates sharing a revenue stream generated from an intellectual property asset among individuals having a fractional ownership of the revenue stream generated. A fractional ownership platform is employed where each fraction purchased may subsequently be divided into fractions of fractions, and those fractions can be sold or transferred without limitation. Both the IP asset created, and each fractional ownership share of a revenue stream generated therefrom may digitally represented using an NFT such that a. smart contract on a blockchain may be employed to enable and facilitate fractional ownership tracking among the IP asset's owner and any number of third parties holding fractional ownership of the IP asset's associated revenue stream and payment distribution to the IP asset owner and all fractional owners.
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: 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: 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: 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: 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: 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: 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.
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: US2025131415A1
A blockchain-authenticated communication subscription system that leverages smart contracts and non-fungible tokens to verify the ownership and authenticity of communication channels. The platform allows creators—individuals or organizations—to authenticate their identity by proving ownership of a smart contract or non-fungible token through cryptographic wallet signatures. Subscribers can opt into these subscription services and receive communications exclusively from verified creators, enhancing trust and reducing unsolicited messages. The system supports both cryptographic wallet-based and traditional authentication methods for subscribers. Communications can be delivered through secure channels and may be stored on-chain or referenced on-chain linking to off-chain data, ensuring transparency and immutability. The platform can be implemented using centralized, decentralized, or hybrid infrastructure to manage subscription data while maintaining authentication integrity. This invention provides an effective solution to unsolicited communications by verifying message origins through blockchain technology, minimizing reliance on traditional spam filters, and delivering a secure and trusted communication experience.
Resumen de: US2025131419A1
Some examples of the present disclosure relate to generating artificially intelligent entities represented on a blockchain using a non-fungible token (NFT). In one such example, a system can generate an NFT on a blockchain. The NFT can represent an artificially intelligent entity. The system can also generate a personality dataset on the blockchain, the personality dataset describing personality characteristics of the artificially intelligent entity. The system can then correlate the NFT to the personality dataset, thereby assigning the personality characteristics to the artificially intelligent entity. Once generated, the artificially intelligent entity may reside in a virtual ecosystem in which it can perform tasks and learn over time.
Resumen de: US2025131397A1
A physical cryptocurrency may comprise a physical medium and an attached processor. The processor may generate a public-private key pair, or the public-private key pair may be generated in a secure and auditable manner external to the processor and stored on the processor. The private key may enable execution of a smart contract on a blockchain to transfer an asset from a starting address to a destination address on the blockchain.
Resumen de: US2025131390A1
Processing a vehicle maintenance transaction is provided. The method comprises receiving the transaction and entering the transaction into a blockchain ledger. In response to the transaction, an enhanced smart contract in the blockchain ledger executes. The enhanced smart contract specifies a number of compliance requirements to complete the transaction and automates a workflow for the transaction according to the compliance requirements. A number of notifications regarding the transaction are generated to a number of subscribers to the blockchain ledger. Confirmation of fulfillment of the compliance requirements is received from the subscribers to complete the transaction. The enhanced smart contract, verifies fulfillment of the compliance requirements, and completion of the transaction is recorded in the blockchain ledger.
Resumen de: US2025133138A1
A computer-implemented method is disclosed that includes: receiving, at a mempool node of distributed mempool network (DMP) implementing a distributed hash table (DHT), a request to update routing information of the mempool node; initializing a set of random walks within a key space of the DHT; generating a first record in an first table based at least in part on a first identification information stored in a second of a long-distance table type; generating a second record in a third table of the long-distance table type by at least performing a first random walk of the set of random walks, the second record containing a second identification information and an address associated with the second identification information; generating a third record in a fourth table of a short-distance table type by at least obtaining records from a table maintained by a second mempool node of the DMP network.
Resumen de: US2025133119A1
One example method includes receiving, at a control plane of a zero trust (ZT) architecture, a request to implement a proposed policy, forwarding the request to multiple policy engines of a blockchain policy engine, executing, by the policy engines, a consensus algorithm that decides whether or not the proposed policy will be implemented, wherein, as part of execution of the consensus algorithm, each of the policy engines performs a respective validation process with respect to the proposed policy, and when a consensus is reached by the policy engines, either implementing the proposed policy, or preventing implementation of the proposed policy, as dictated by the consensus.
Resumen de: US2025132914A1
A computer-implemented method of validating a blockchain transaction is disclosed. The method comprises requesting at least one UTXO referenced by at least one respective input of the transaction from a member node of at least one shard comprising at least one UTXO, obtaining validity data of at least one UTXO from at least one node, and performing a validation check on at least one input using the validity data.
Resumen de: US2025132921A1
A talking head digital identity immutable dual authentication method for use over a distributed network, comprising: downloading talking head and talking head show files from nodes of a distributed network; downloading hash values of a talking head and talking head show from a blockchain; sending a hash of a publisher's identification from the blockchain to a name lookup service; retrieving and confirming the identity of the publisher; recalculating hash values of the talking head and talking head show; comparing the recalculated hash values of the talking head and talking head show with the hash values of the talking head and talking head show retrieved from the blockchain; incorporating a 3D mesh model into the talking head show; starting playback of the talking head show if the hash values received from the blockchain match the recalculated hash values of the talking head and talking head show retrieved from the distributed network.
Resumen de: US2025132915A1
Disclosed is a service providing method based on a non-fungible token (NFT), which may include creating, by a system server, a hash value based on user information for a vehicle, vehicle unique information, and vehicle information, issuing, by a blockchain main net, an NFT corresponding to the vehicle by using the user information, the vehicle information, and the hash value, and performing an NFT inquiry, an NFT transaction, and metadata modification of the NFT between the blockchain main net and any personal terminal.
Resumen de: US2025132935A1
Disclosed are a consensus method and device, and a blockchain system. A primary node directly broadcasts a transaction hash list including a hash value of at least one unverified transaction in the system, so that a backup node and the primary node simultaneously verify the at least one unverified transaction, and the backup node stores a first verification result obtained by verification and a first hash value of the at least one unverified transaction. The primary node broadcasts an obtained second verification result and a second hash value of the at least one unverified transaction in a pre-preparation message after completing the verification, so that the backup node searches for the first verification result based on the second hash value, and broadcast a preparation message when the second verification result is the same as the searched first verification result, to enter a subsequent consensus stage, and complete the consensus processing.
Resumen de: US2025132936A1
Example systems and methods include: receiving, by a computing system, a request to add a block to a blockchain, wherein the block includes an entry that relates to a semantic representation, wherein the semantic representation encodes a state change to a state stored on the blockchain; obtaining, by the computing system, a copy of the semantic representation as provided by a trusted third party, wherein the copy of the semantic representation is digitally signed by the trusted third party or provided by the trusted third party at a network address; validating, by the computing system, the semantic representation; and initiating, by the computing system, procedures to add the block to the blockchain.
Resumen de: US2025132898A1
A process for managing security of a blockchain may include receiving a message from a P2P distributed application requesting access to a block on a blockchain for a user. In response to receiving the message, identity of the user requesting access to the block may be validated. In response to validating the identity of the user, the requested access to the block may be performed by (i) requesting a key associated with the identified user to be used to unlock the block, and (ii) in response to receiving a key associated with the user, unlocking the block to access content data stored in a data object contained in the block. A distributed data management system (DDMS) may be configured to perform the process.
Nº publicación: US2025132903A1 24/04/2025
Solicitante:
NCHAIN LICENSING AG [CH]
nChain Licensing AG
Resumen de: US2025132903A1
A computer-implemented method includes encrypting a plaintext message to a cryptographic public key in accordance with an identity-based encryption scheme using at least a congress public key to generate an encrypted message, wherein the congress public key is associated with members of a congress, respective members of the congress having access to private key shares usable in a threshold decryption scheme in which at least a threshold of private key shares are sufficient to derive a decryption key through the combination of partial contributions to the decryption key on behalf of the congress, generating, using at least a cryptographic private key corresponding to the cryptographic public key, a digital signature over a first set of instructions to perform cryptographic operations upon an occurrence of an event; and broadcasting one or more transactions to a proof-of-work blockchain network, the one or more transactions comprising the encrypted message, the cryptographic public key.
BOPI
Sede Electrónica
