Blockchain

MULTIPLE ENCRYPTION DATA STORAGE AND RETRIEVAL SYSTEM

Resumen de: AU2024251148A1

A computer system and method for storage and retrieval of multiple encrypted data. The system and method allow a user to first encryption data with a first key only held by the user such that the user solely possesses one of the necessary keys for later decryption of the stored and encrypted data. The firstly encrypted data is then doubly encrypted and stores the data in such a secure manner that the data can be stored on a public blockchain architecture, if desired. Full decryption of the original user data can only be performed with access to the user's initial key.

LIQUIDITY AND SECURITY MECHANISMS AS PART OF A UNIFIED CRYPTOGRAPHIC WALLET

Resumen de: AU2024259188A1

Liquidity and security mechanism are described as part of a unified cryptographic wallet. In an implementation, a request is received by a server to initiate a transaction involving a fund transfer using a blockchain network or a decentralized network. A determination is made, automatically and without user intervention, whether to perform the transaction, e.g., based on a threshold. The request responsive to determining to perform the transaction. The signed request is communicated to initiate the fund transfer of the transaction using the blockchain network or the decentralized network.

BLOCKCHAIN TOKENS

Resumen de: EP4648355A2

A token transaction comprising a first token output, the first token output comprising a first token locking script and a first token amount, wherein the first token locking script comprises a variable component and a constant component, wherein the variable component comprises a first payment address, embedded in a payment template, and wherein the constant component comprises a token mechanics sub-component.

Verifying requests

Resumen de: GB2640819A

The invention provides an autonomous system for airside autonomous baggage vehicles whereby commands, such as baggage dolly move from location to baggage hall, can be verified to confirm the request originates from a trusted source. A number of nodes can verify the request, and a consensus can be formed, i.e. if a total number of yes votes exceeds a threshold. If each node keeps a local blockchain then all verified requests can be added. The invention comprises comparing 204 a candidate trusted value received with a request with a trusted value stored at each node of the plurality of nodes, generating 205 a yes vote if the candidate trusted value matches the trusted value stored at a respective node, and verifying 208 the request if the number of yes votes across the plurality of nodes exceeds a predetermined threshold. Trusted values may be a hash of data contained within a preceding request. Each node of the plurality of nodes may store the series of requests on a local blockchain stored on that node, with verified requests added to the local blockchain as they are verified.

CONSTRAINTS ON INPUTS OF AN UNLOCKING TRANSACTION IN A BLOCKCHAIN

Resumen de: EP4647996A2

A computer-implemented method comprises creating, at a node in a blockchain network, a first transaction, wherein the first transaction includes a first output having a first spendable value and a first locking script and a second output having a second spendable value and a second locking script. A first set of constraints on a first selected transaction output is included in the first locking script, wherein the first set of constraints are to be met by a first unlocking script if the first selected transaction output is to be valid for spending the first spendable value. A second set of constraints on a second selected transaction output is included in the second locking script, wherein the second set of constraints are to be met by a second unlocking script if the second selected transaction output is to be valid for spending the second spendable value. The first set of constraints or the second set of constraints imposes a constraint on a locking script of a spending transaction having as a spending transaction output the first selected transaction output or the second selected transaction output.

EMBEDDING PRIVACY MEASURES INTO A DISTRIBUTED LEDGER

Resumen de: WO2025229383A1

Techniques for enhancing privacy measures in a blockchain are disclosed. A service generates a smart contract for an asset. The smart contract includes a storage space having a public address field comprising a first public address value. The first public address value is associated with a first private key that is usable to generate a proof of ownership of the asset. The service deploys the smart contract to the blockchain. The service generates a second private key. The service uses the second private key to generate a second public address value. Despite a current owner of the asset not changing such that no transactions involving the asset are performed, the service transmits the second public address value to the smart contract to trigger the smart contract to replace the first public address value in the public address field with the second public address value.

METHODS FOR DEPLOYING CONTRACT IN BLOCKCHAIN AND BLOCKCHAIN NODES

Resumen de: US2025342467A1

Methods for deploying a contract in a blockchain and blockchain nodes are provided. In an implementation, a method includes: receiving a first transaction for deploying a first contract, where the first transaction invokes a second contract. An incoming parameter for the second contract includes a code identifier of first code and the value of an immutable variable in the first code, the code identifier and the first code are pre-stored in the blockchain, the first code includes a first function for initialize a contract, and the second contract includes a call to the first function. Before executing the first function based on the call in the second contract, obtaining the first function in the first code based on the code identifier when determining that the second contract is a system contract, and storing state data of the first contract in the blockchain by executing the first function.

SYSTEMS AND METHODS FOR RISK MANAGEMENT NETWORKS

Resumen de: US2025342426A1

Systems, devices, and methods provide for risk management between a source blockchain and a destination blockchain. A risk management network monitors transactions taking place utilizing a cross-chain interoperability protocol. The risk management network is separate from the transaction network. If aspects of the transaction (for example, committed and reconstructed Merkle roots) look as expected, the risk management network blesses the transaction and it proceeds to completion. In contrast, if an anomaly is detected, the risk management network curses the system and the transaction is paused so that the anomaly can be investigated and the transaction potentially reversed, cancelled, or otherwise modified.

Embedding Privacy Measures Into A Distributed Ledger

Resumen de: US2025342462A1

Techniques for enhancing privacy measures in a blockchain are disclosed. A service generates a smart contract for an asset. The smart contract includes a storage space having a public address field comprising a first public address value. The first public address value is associated with a first private key that is usable to generate a proof of ownership of the asset. The service deploys the smart contract to the blockchain. The service generates a second private key. The service uses the second private key to generate a second public address value. Despite a current owner of the asset not changing such that no transactions involving the asset are performed, the service transmits the second public address value to the smart contract to trigger the smart contract to replace the first public address value in the public address field with the second public address value.

MULTIMEDIA CONTAINER FOR PHYSICAL OBJECT AUTHENTICATION AND VERIFICATION OF ATTENDANCE

Resumen de: WO2025230983A1

A method, server, system, and computer program product creates a three-dimensional (3D) virtual certificate of authenticity (COA) that is a multimedia container having a media file that provides for an experiential presentation in the 3D COA itself. The multimedia container with media file lends credibility to the authenticity of the 3D COA. The ownership of the 3D COA can be stored in a blockchain as a non-fungible token, and easily transferred from one claimant of the 3D COA to another.

SECURE AND EFFICIENT SIGNING OF CRYPTOCURRENCY TRANSACTIONS UNDER FULLY HOMOMORPHIC ENCRYPTION

Resumen de: WO2025230990A1

A system and method for securing and efficiently signing cryptocurrency transactions using fully homomorphic encryption (FHE) comprising: receiving, from a first computer device, a first encryption of a cryptographic private key obfuscated by a first layer of encryption; encrypting the first encryption of the private key to generate a second encryption of the private key obfuscated by a FHE layer - without unencrypting the cryptographic private key; and transmitting the second encryption of the private key (directly or indirectly) to one or more untrusted third parties (which may include, e.g., server farms, cloud blockchain networks, and the like) to efficiently generate a cryptographic signature of a cryptocurrency transaction encrypted under the second encryption of the private key (e.g., the FHE layer).

Systems and Methods for Reliable Authentication of Jewelry and/or Gemstones

Resumen de: US2025343700A1

A variety of techniques for authentication of jewelry and gemstones is provided. With some example embodiments, blockchain may be used to store a reference signature for the jewelry/gemstone, and a digital asset such as a non-fungible token can link this reference signature with the physical jewelry/gemstone. During an authentication process, the reference signature stored on the blockchain can be accessed and compared with a test signature derived from an item that is purported to be the original jewelry/gemstone to determine whether they match to support a declaration that the purported jewelry/gemstone is authentic.

TRANSACTION EXECUTION METHODS, NODES, AND BLOCKCHAIN SYSTEMS

Resumen de: US2025342469A1

This specification provides transaction execution methods, nodes, and blockchain systems. The methods can be applied to a first node in a blockchain system, which includes a control process and N computing processes. In an example method, the control process acquires M transaction groups, where the M transaction groups are obtained by grouping transactions in a target block based on respective pre-execution read-write sets of the transactions, and M and N are positive integers. The control process acquires, when determining that there is another block that is in an execution phase, a pre-execution read-write set of a transaction in the another block, and sends a transaction group irrelevant to the acquired pre-execution read-write set, among the M transaction groups, to different computing processes in the N processes. A first computing process executes, when receiving any one of the M transaction groups, each transaction in the received transaction group.

MULTI-PURPOSE INTERACTIVE SOCIAL PLATFORM AND METHOD OF USING THE SAME

Resumen de: US2025342496A1

A social media platform facilitates user interaction through digital environments called “bubbles,” which serve as customizable, collaborative spaces for content sharing and engagement. Users can participate in gamified events such as challenges, races, and raffles within these bubbles. The platform incorporates a blockchain-based reward system that issues digital assets, including tokens and non-fungible tokens (NFTs), based on user participation and performance. Each piece of content shared within a bubble can be assigned its own privacy level, independent of the user's account settings. The system supports role-based access, content moderation, and smart contract integration to ensure secure, transparent reward distribution.

RENEWAL OF BLOCKCHAIN ASSETS BASED ON OPTIMIZATION OF BLOCKCHAIN PROCESSING

Resumen de: US2025342466A1

According to a present invention embodiment, a system for renewing a blockchain asset comprises one or more memories and at least one processor coupled to the one or more memories. The system monitors for a set of conditions associated with renewal of the blockchain asset. The set of conditions controls renewal processing and includes one or more blockchain processing values for performance of the renewal on a blockchain. The blockchain asset is renewed on the blockchain in response to satisfaction of the set of conditions. Embodiments of the present invention further include a method and computer program product for renewing a blockchain asset in substantially the same manner described above.

Blockchain Encoding System

Resumen de: US2025342231A1

Embodiments securely control an electronic asset. One such embodiment binds an asset non-fungible token (NFT) pertaining to an electronic asset with a representation of an identity of an authorized user node. The node is paired with the electronic asset. The representation includes an identification NFT. The representation and the asset NFT are registered on a blockchain associated with the electronic asset. In response to receiving a task request from the node, a task is computationally performed relating to the electronic asset, and the representation of the identity, and the electronic asset is securely controlled. The task includes at least one of: (i) granting access to the electronic asset by the node in response to the node satisfying at least one condition and (ii) denying the access to the electronic asset by the node in response to the node not satisfying the at least one condition.

DISPLAYING VIRTUAL DIGITAL OBJECTS GENERATED USING BLOCKCHAIN TECHNOLOGY

Resumen de: US2025342521A1

A system and method for viewing a virtual digital object created from components having cryptocurrency value includes receiving a selection of at least one of an avatar, a captured image of the user or a third party, or a digital scene and receiving a selection of the virtual digital object for display on the selected avatar or captured image or within the digital scene. The virtual digital object includes metadata relating to at least one of cryptocurrency value of the virtual digital object, creation of the virtual digital object, and rules governing use and ownership of the virtual digital object. The user may manipulate the displayed virtual digital object within the display and may elect to display at least part of the metadata (e.g., price) along with the virtual digital object. The display of the virtual digital object may be captured and forwarded via a messaging or social media application.

BLOCKCHAIN TRANSACTION EXECUTION METHODS AND BLOCKCHAIN NODES

Resumen de: US2025343703A1

Provided are blockchain transaction execution methods, apparatuses, computer-readable media and systems. An example method includes: receiving a first transaction, where the first transaction includes a first operation and a second operation, the first operation is used to call a first function in a first contract, and the second operation is used to call a second function in a second contract; and executing the first operation and the second operation.

CROSS-CHANNEL BLOCKCHAIN AND METAVERSE INTEGRATION SOLUTIONS FOR GAMING SYSTEMS

Resumen de: US2025339781A1

Systems and methods are provided for gaming solutions across different gaming channels, different entities, and different environments using non-fungible token (NFT), blockchain, and/or metaverse components and/or functionality. A gaming device in a physical gaming environment can be synced with a gaming device in a metaverse gaming environment. NFTs can be associated with users, gaming devices, gameplay outcomes, and/or vouchers. NFTs can be actioned to players in a gaming computing environment through one or more gaming channels. NFTs can be actioned across different gaming channels, different entities, and different environments. A cross-channel application can pair a user computing device with a first gaming channel and apply a non-fungible token for personalization of the first gaming channel. The cross-channel application can pair the user computing device with a second gaming channel and a apply the NFT for personalization of the second gaming channel.

METHOD OF OPERATING A BLOCKCHAIN WALLET

Resumen de: AU2024241772A1

The method can include receiving a key generation request from a user; providing at least one value of a cost parameter associated to the user; calculating a cost value for a first key generation scheme using a cost function for the first key generation scheme and the at least one value of a cost parameter; calculating a cost value for a second key generation scheme using a cost function for the second key generation scheme and the at least one value of a cost parameter; comparing the cost value for the first key generation scheme to the cost value for the second key generation scheme; selecting one of the first key generation scheme and the second key generation scheme based on the results of the comparison; generating a blockchain key based on the selected key generation scheme; and storing the blockchain key in a non-transitory computer memory.

METHOD AND DEVICE FOR PROVING ORIGINALITY OF CREATIVE DESIGN IN COMMUNICATION SYSTEM

Resumen de: EP4645752A1

The present invention relates to a method and device for proving the originality of a creative design in a communication system by proving the causal relationship between the creation process of the creative design and the creation result using the hash codes related to images in creation stages of the creative design. Specifically, the present invention relates to a method and device that combine hash codes for intermediate images in the creation process of a creative design, such as a painting, an art work, a commercial or non-commercial design, a clothing design, the interior design of a building, or the like, and a hash code for a final image using an operation function to generate one piece of final hash information and then transmit a non-fungible token (NFT) including the final hash information and final image information to a blockchain so that the design creator can claim the connection between the intermediate images in the creation process of the creative design and the final image at the time of disclosing the design on the blockchain network.

DIGITAL CURRENCY CROSS-BORDER TRANSACTION METHOD AND APPARATUS BASED ON BLOCKCHAIN, AND STORAGE MEDIUM

Resumen de: EP4645192A1

A digital currency cross-border transaction method and apparatus based on a blockchain, and a storage medium, which relate to the technical field of payment transactions. The digital currency cross-border transaction method based on a blockchain is applied to a transaction initiation device in a blockchain payment system. The method comprises: generating a digital currency payment request; creating a payment request block according to the digital currency payment request, and sending the payment request block to a blockchain, wherein the payment request block is obtained according to a private key signature of a transaction initiation device, the blockchain is configured with a digital currency smart contract that comprises a payment function, and the payment function is configured to perform payment processing according to the payment request block; and in response to a payment success result of the payment function for the payment request block, determining that the digital currency payment request is completed. The method is configured to solve the problem in the related art of the payment efficiency being low due to payment processes being cumbersome.

BLOCKCHAIN-BASED TRANSACTION SUPERVISION METHOD, SYSTEM AND APPARATUS, AND ELECTRONIC DEVICE

Resumen de: EP4645197A1

A blockchain-based transaction supervision method, comprising: a payer client node constructing first transaction ciphertext information on the basis of a random symmetric key, wherein the first transaction ciphertext information comprises an encrypted payment address, an encrypted transaction amount, an encrypted collection address, and first transaction supervision ciphertext information, and the first transaction supervision ciphertext information comprises encrypted supervision information and one or more encrypted symmetric keys; sending the first transaction ciphertext information and a zero-knowledge proof to a blockchain; a blockchain verification node storing the first transaction ciphertext information to the blockchain when the zero-knowledge proof is established; and an associated supervisor node acquiring the first transaction ciphertext information from the blockchain, performing decryption by using a supervision private key to obtain the random symmetric key, and performing decryption by using the random symmetric key, to obtain transaction plaintext information for supervision and verification.

SERVICE PERMISSION MANAGEMENT METHOD AND APPARATUS, AND DEVICE

Resumen de: EP4645128A2

A service permission management method and apparatus, and a device, which relate to the technical field of computers. The method comprises: a first electronic device monitoring a blockchain node, wherein a plurality of smart contracts corresponding to services on a one-to-one basis are stored in the blockchain node; when service permission change information is newly added to the blockchain node, the first electronic device sending a synchronization request message to the blockchain node, wherein the service permission change information is used for indicating that a service permission of a first service is changed, and service permission change information configured by a second electronic device is stored in the blockchain node; the first electronic device receiving the service permission change information from the blockchain node; and the first electronic device updating service configuration information according to the service permission change information, wherein the updated service configuration information comprises changed service permission information of the first service. The method can solve the problem of it being impossible to manage some service permissions in commercial banks.

CONSORTIUM BLOCKCHAIN ADMISSION MANAGEMENT METHOD AND APPARATUS

Nº publicación: EP4645756A1 05/11/2025

Solicitante:

CHINA UNIONPAY CO LTD [CN]
China Unionpay Co., Ltd

Resumen de: EP4645756A1

Provided in the embodiments of the present application are a consortium blockchain admission management method and apparatus, which are applied to the technical field of blockchains. The method comprises: for each first-level node which has a direct access control permission for a basic admission management component, in response to a hosting transaction, which is initiated by the first-level node toward the basic admission management component, the basic admission management component constructing a corresponding second-level institution contract; and when the second-level institution contract is in a cooperation mode, in response to a node admission transaction, which is initiated by an initial second-level node toward the second-level institution contract, adjusting second-level nodes, wherein each second-level node has an indirect access control permission for the basic admission management component and can join a blockchain network, and the second-level institution contract realizes multi-level node admission management by means of multi-level expansion. In the present application, admission management is performed on nodes of a blockchain network by means of multi-level control, such that the nodes can be adapted to a level-based admission management requirement during expansion of the institution scale and the blockchain node scale, and thus, the robustness of a node admission management mechanism is better, and the security thereof is higher.