Abstract: The present disclosure discloses a method for a UWB-based payment service. A method of a first electronic device using UWB communication, of the present disclosure, may comprise the operations of: receiving, from a second electronic device, an initiation message for UWB ranging, which includes a random number generated by means of the second electronic device, transmitting, to the second electronic device, a response message to the initiation message, which includes identification information about the first electronic device encrypted using a session key generated on the basis of the random number, receiving, from the second electronic device, a transaction information message including request type information indicating the type of request associated with a payment, and transmitting, to the second electronic device, a payment information message including response data based on the request type information.

Abstract: Methods that control use, trace ownership and authenticity of digital assets and/or brandmarks in a metaverse environment. The methods involve obtaining a first set of control properties associated with a digital asset and a second set of control properties associated with a brandmark. The first set of control properties define first usage rules for rendering the digital asset in the metaverse environment in which a user is immersed into a virtual environment and the second set of control properties define second usage rules for rendering the brandmark in the metaverse environment. The methods further involve determining whether the digital asset is compatible with the brandmark based on the first set of control properties and the second set of control properties and rendering the digital asset with the brandmark in the metaverse environment based on determining that the digital asset is compatible with the brandmark.

Abstract: This document describes techniques for performing dynamic transfer operations based on a blockchain ledger without needing to perform computationally expensive cryptographic hash reversal operations. In some cases, an example system stores a hashed identifier on a blockchain ledger, along with one or more ledger values like an account balance value and/or a payout amount value. The example system may store un-hashed sensitive backend data on a private backend database. When the example system receives an event notification, the system extracts an identifier from the notification, hashes the identifier, and uses the hashed identifier to retrieve the blockchain ledger. The system then determines whether the ledger value(s) satisfy a condition. If so, the system uses the hashed identifier stored on the blockchain ledger to query the backend database for an account identifier, maps the account identifier to a blockchain wallet, and executes a blockchain transfer operation to the blockchain wallet.

Abstract: A system for sharing a distributed revocation list on a blockchain includes circuitry that identifies an access attempt by a wallet on a first blockchain network, and adds the wallet to a blacklist. The blacklist identifies the wallet as suspicious. The circuitry generates a soulbound token, and airdrops the soulbound token into the wallet. The soulbound token identifies that the wallet belongs to the distributed revocation list and identifies the wallet as a suspicious wallet to blockchain networks.

Abstract: Disclosed are examples of systems, apparatus, devices, computer program products, and methods implementing aspects of a decentralized content fabric. In some implementations, one or more processors are configured to provide fabric nodes of a network, including a first fabric node receiving a client request to perform one or more actions with respect to digital content corresponding to a plurality of content object parts maintained in the network. A lookup is performed on a blockchain ledger in a first blockchain to locate a digital instrument cryptographically linked to a user identifier (ID) of an owner of the digital content. The first fabric node grants the client request based on determining that a user ID associated with the client request matches the user ID of the owner of the digital content. The one or more actions are then performed through a blockchain transaction in the first blockchain or another blockchain.

Abstract: Images capture an object that a person carries into a frictionless store as a potential frictionless return item. When the potential frictionless return item is placed on a shelf or a countertop in a designated area, the potential frictionless return item is identified as a returned item. A transaction history linked to an account of the person is retrieved and the returned item matched to a previously purchased item in the transaction history. Assuming return conditions are met, the account is automatically credited an item price associated with the previously purchased item and a user interface is automatically initiated on a registered mobile device of the person providing a receipt for the refund and the return. The person may then leave the store or continue shopping in the frictionless store and the person and any items taken by the person are tracked for frictionless purchase.

Abstract: A payment includes: in response to a received payment request message, sending a security verification request message to a security control system, the security verification request message is used to instruct the security control system to perform security verification according to security verification information; receiving security verification result information sent by the security control system; when the security verification result information indicates that the security verification is passed, sending a first notification message to the SDK, the first notification message instructs the SDK to notify the host program to display a user verification page to prompt the user to enter the first user verification input information, the first user verification input information is used for the host program server to perform user verification to obtain user verification result information; when the user verification result information indicates that the user verification is passed, initiating a payment requ

Abstract: Systems, devices and processes for electronic commerce payment processing using a handle and a mobile device with a mobile wallet application installed thereon. The handle may be used at a merchant website to process the electronic commerce payment for instead of providing payment information and/or personally identifiable information. That is, the handle may not include payment information and/or personally identifiable information.

Abstract: A wireless communication device includes first and second wireless communication interfaces for communicating with a second device. The first wireless communication interface communicates according to a first wireless communication protocol and the second wireless communication interface communicates according to a second wireless communication protocol. The second wireless communication protocol is associated with a higher data rate and a higher power consumption than the first wireless communication protocol. The second device sends a message to the wireless communication device. Based on that message, certain hardware of the wireless communication device is enabled, including the second wireless communication interface. The wireless communication device and the second device then establish a connection according to the second wireless communication protocol and communicate via that connection.

Abstract: Systems and methods for executing a batch of electronic transactions. One method may include: receiving, at a user interface of an information handling device associated with the real time transaction system, a selection to import a transaction file, wherein the transaction file comprises a listing of a plurality of transaction requests; identifying, via analysis of the transaction file, one or more characteristics associated with each of the plurality of transaction requests in the listing; determining, based on the identified one or more characteristics, whether a subset of the plurality of transaction requests are deficient; isolating, responsive to the determining, the subset from a remainder of the plurality of transaction requests; and facilitating, responsive to receiving user authorization input, a transaction process for each of the plurality of transaction requests in the remainder.

Abstract: Presented are cryptographic digital assets for retail products, methods for making/using such cryptographic digital assets, and computing systems for generating, intermingling, and exchanging blockchain-protected products. A method for provisioning cryptographic digital assets associated with retail product transfers includes broadcasting notifications of a future transaction of a retail product, and receiving, over a distributed computing network from the computing devices of multiple users, requests to participate in the transaction. A select number of users is added to a virtual line associated with the retail product transaction; from the virtual line, a first user is selected to receive the retail product and a second user is selected to receive a cryptographic digital asset containing a digital retail product and a unique digital asset code.

Abstract: A shoulder rest (30) for a stringed instrument with a support element (32) extending in a longitudinal direction (L) for resting on the shoulder and/or chest of the player, on which a number of hinged clamping units (34) are arranged, is intended to be adaptable in a particularly simple manner to different geometric requirements. For this purpose, the shaft (50) of the or each clamping unit (34) is mounted in each case by means of integrally formed pivot pins (58) in an associated pivot bearing (55), the bearing shells (60) of which are designed in accordance with the invention in each case in the form of an arc segment which does not engage around or enclose the pivot pin (58) completely, but only over a certain arc length. The shaft is preferably positioned off-center and thus enables particularly simple and fast dimensional adjustments.

Abstract: Presented herein are one or more embodiments with novel techniques of: defining an asset comprising at least one private cryptographic key, each private cryptographic key being associated with an owner of the asset; generating a registry comprising at least one public cryptographic key; generating a smart contract comprising at least one rule relating to an automated generation of one or more blockchain transactions to enable a transfer to be made in respect of the asset; and using a computing agent to evaluate and/or execute the at least one rule of the smart contract. Thus, one benefit provided by the invention is that it allows the secure distribution of costs and income for an asset registered and maintained on the Blockchain, which, in turn increases the capability of such assets to meet the real-world needs of various entities such as the asset itself and investing parties.

Abstract: Computer-implemented methods and systems for implementing smart contract modules on a decentralized network are disclosed.

Abstract: Methods and systems described herein may implement blockchain cryptocurrency transactions in a variety of environments. An online transaction processor may provide operations for cryptocurrency conversions. The transaction processor may detect that a user is involved in a cryptocurrency transaction with another entity, which is requested to be processed using an amount of cryptocurrency and using an off-chain amount of the cryptocurrency. The transaction processor may determine that the entity does not have a digital wallet, node, or the like on a layer two network to receive and/or process the off-chain balance for the cryptocurrency. The transaction processor may then, after a risk assessment, determine that the user may access the amount of the cryptocurrency from an on-chain balance available to a digital wallet of the cryptocurrency. The transaction processor may make that on-chain amount available and may request repayment via the user's off-chain balance.

Abstract: A plurality of circular blockchains are created. The plurality of circular blockchains may comprise different structures. For example, the plurality of circular blockchains may include: a single genesis block where a last block in each of the plurality of circular blockchain links back to the single genesis block, a plurality of genesis blocks where a last block in each of the plurality of circular blockchain links back to individual ones of the plurality of genesis blocks, and a genesis block and one or more connection blocks that form the plurality of circular blockchains.

Abstract: A tremolo unit is provided, in which string can be strongly tightened and stably clamped. The tremolo unit including a base plate 10 arranged on a surface of a string instrument and a saddle 100 attached on a surface of the base plate 10. The saddle 100 includes a saddle main body 110 and a clamper 160 rotatably attached to the saddle main body 110, and the saddle main body 110 includes a penetrating hole 140 through which a string is inserted and a saddle part 120 receiving a string drawn from the penetrating hole 140 to a neck side of a string instrument. The clamper 160 is supported in a condition in which a supporting part 161 is rotatably supported in order to enable an end part of a neck side of the saddle part 120 side to approach closer to and be further away from the saddle part 120, and at an end part opposite to the neck side of the clamper 160, an operating part 164 is arranged which makes the end part move away from the saddle main body 110 by pressing the saddle main body 110.

Abstract: Systems and methods for storing bit pattern representations of a data structure in a smart contract and performing algorithm identifying operations using the bit pattern representations are disclosed herein. In some embodiments, a data structure is encoded as a bit pattern representation using a predefined schema. A storage operation may then be performed to store the bit pattern representation and a schema identifier associated with the predefined schema within a smart contract. A request to determine an identity of an algorithm that generated a particular output may be received and the bit pattern representation may responsively be decoded from data stored in the smart contract to generate a set of data structure elements. A response may be provided to the request by performing zero-knowledge proof based on the set of data structure elements, a set of input values, and a set of output values.

Abstract: Systems, methods, and apparatuses for providing a customer a central location to manage permissions provided to third-parties and devices to access and use customer information maintained by a financial institution are described. The central location serves as a central portal where a customer of the financial institution can manage all access to account information and personal information stored at the financial institution. Accordingly, the customer does not need to log into each individual third-party system or customer device to manage previously provided access to the customer information or to provision new access to the customer information. A user additionally is able to have user data and third-party accounts of the user deleted from devices, applications, and third-party systems via a central portal. Restrictions on how user data is used by devices, applications, and third-party systems can be imposed via a central portal.

Abstract: Systems and methods of validating transactions are provided. An exemplary system includes a server including a memory and a processor. The server is configured to: receive from an entity a transaction validation request of validating a transaction; validate the transaction; generate a logging record of the transaction validation; cryptographically hash the logging record to create a hashed logging record; digitally sign the hashed logging record using a key to create a signed hashed logging record; and transmit the signed hashed logging record to a computer device.