Abstract: A Brayton cycle engine including a longitudinal wall extended along a lengthwise direction. The longitudinal wall defines a gas flowpath of the engine. An inner wall assembly is extended from the longitudinal wall into the gas flowpath. The inner wall assembly defines a detonation combustion region in the gas flowpath upstream of the inner wall assembly.

Abstract: A Brayton cycle engine and method for operation. The engine includes an inner wall assembly and an upstream wall assembly each extended from a longitudinal wall into a gas flowpath. An actuator adjusts a depth of the detonation combustion region into the gas flowpath between the inner wall assembly and the upstream wall assembly. The engine flows an oxidizer through the gas flowpath and the inner wall captures a portion of the oxidizer. The engine further adjusts the captured flow of oxidizer via the upstream wall and flows a first flow of fuel to the captured flow of oxidizer to produce rotating detonation gases. The engine flows the detonation gases downstream and to mix with the flow of oxidizer, and flows and burns a second flow of fuel to the detonation gases/oxidizer mixture to produce thrust.

Abstract: A method for facilitating anonymized interactions and/or identifying or validating a user via a virtual number may include: receiving a login request from a user device associated with a user that identifies the user via a virtual number; in response to receiving the login request, determining whether the virtual interaction item number is valid; in response to determining that it is valid: validating the login request; and identifying an entity associated with the virtual number; receiving from the user device, an interaction-completion request; in response to receiving the interaction-completion request, transmitting a user information request to the entity associated with the virtual number; receiving a reply to the user-information request from the entity; and in response to receiving the reply, completing the interaction-completion request using the reply.

Abstract: A raised foundation system for supporting a prefabricated real property structure having a downwardly facing mounting structure. The system includes a slab having footers; for each footer, a column attached thereto; a plurality of elongated main braces attached to the columns; and a plurality of elongated lateral braces attached to the main braces. At least two of the main braces extend along a plane, and each lateral brace extends the plane or another plane parallel to the plane. The main and lateral braces form an upwardly facing mounting structure configured to attach to the downwardly facing mounting structure.

Abstract: A Brayton cycle engine including a longitudinal wall extended along a lengthwise direction. The longitudinal wall defines a gas flowpath of the engine. An inner wall assembly is extended from the longitudinal wall into the gas flowpath. The inner wall assembly defines a detonation combustion region in the gas flowpath upstream of the inner wall assembly.

Abstract: A first user device may receive, from a second user device, a request to communicatively couple to the first user device, and may establish a communication session with the second user device after receiving the request. The first user device may identify, after establishing the communication session, an inappropriate activity of the second user device relating to the communication session, and perform a set of actions based on identifying the inappropriate activity. The set of actions may include causing the communication session to be restricted, and providing, to a trust platform, a score for the second user device. The score may permit the trust platform to derive a composite score, indicative of a level of trustworthiness of the second user device, that enables other user devices, associated with the trust platform, to determine whether to grant access requests submitted by the second user device.

Abstract: In some embodiments, a system may obtain first feedback indicating one or more first signal-strength-related results corresponding with one or more first token interactions occurring in connection with presentation of one or more first components at one or more first locations of a user interface of a user device. Based on the first feedback, the system may obtain one or more second locations of the user interface and cause presentation of one or more second components at the one or more second locations of the user interface. The system may obtain second feedback indicating one or more second signal-strength-related results corresponding with one or more second token interactions. Using the first and second feedback, the system may update a user interface presentation location at which to present a component for a token interaction within a profile associated with a user of the user device.

Abstract: In one aspect, the present disclosure relates to a method for improved security in a networked computing environment, the method comprising: receiving, from a user device, a registration request comprising a user identifier for a user; receiving, from the user device, user credentials to access one or more online accounts associated with the user; accessing the one or more online accounts to retrieve user activity data for the user; analyzing the retrieved user activity data to determine one or more merchants associated with the user; storing, in a database coupled to a server device, a mapping between the user and the one or more merchants; receiving, from a monitoring service, an indication that a first merchant of the one or more merchants has experienced a data breach; and sending a notification to the user in response to determining that the first merchant has experienced a data breach.

Abstract: Aspects described herein may provide detection of a physical characteristic of a credential, thereby allowing for authentication of the credential. According to some aspects, these and other benefits may be achieved by detecting the physical characteristic with the credential. An image of a credential may be received. An optical characteristic of a secure feature of the credential may be determined. An expected optical characteristic of the secure feature may be determined based on known properties of the secure feature. A determination as to whether the credential is authentic may be based on a comparison of the determined optical characteristic of the secure feature to the expected optical characteristic of the secure feature.

Abstract: Methods and systems are disclosed for payment authentication. For example, a method may include: the method comprising: storing a first device fingerprint in association with a token representing a primary account number, the first device fingerprint being derived from a device attribute of a user device and behavioral biometric data derived from a behavioral pattern of a user in using the user device; receiving an authentication request indicative of the token and a second device fingerprint generated by a customer device associated with a customer of a merchant, the authentication request being associated with a transaction between the merchant and a customer using the token; identifying the stored first device fingerprint based on the token indicated by the authentication request; and determining whether the second device fingerprint matches the stored first device fingerprint.

Abstract: In one aspect, the present disclosure relates to a method for method for efficient allocation of bandwidth in a wireless network. The method can include: identifying a plurality of network interfaces on a first user device; initializing a virtual network resource associated with the plurality of network interfaces; receiving, at the virtual network resource, data packets from an app executing on the first user device, the data packets destined for a remote device; sending a first portion of the data packets to the remote device via a first one of the plurality of network interfaces; and sending a second portion of the data packets to the remote device via a second one of the plurality of network interfaces. An aggregation platform can be configured to receive and reconstitute the first and second portions of the data packets, and to transmit the reconstituted data packets to the remote device.

Abstract: A method performed by a user device may include obtaining biometric information relating to a user of the user device using a biometric sensor of the user device; determining that the biometric information is valid; generating a biometric indicator indicating that the biometric information is valid; providing a request for a callback from an entity, wherein the request includes the biometric information indicating that the biometric information is valid; and receiving the callback from the entity, wherein the callback is received based on the biometric information indicating that the biometric information is valid, and wherein the callback is associated with an entity identifier that is not provided to the user.

Abstract: Methods and systems are described herein for enabling users to access user data of other users using cryptographic tokens. A data access system may be used to enable access. The system may receive a blockchain operation request for enabling access to first user data associated with a first user. The system may generate a cryptographic token and an access entry. When the system receives a second blockchain operation request for accessing the first user data, the system may determine one or more parameters for accessing the first user data. In response to verifying the one or more parameters, the data access system may enable access to the first user data.

Abstract: Aspects described herein may provide detection of a physical characteristic of a credential, thereby allowing for authentication of the credential. According to some aspects, these and other benefits may be achieved by detecting the physical characteristic with the credential. An image of a credential may be received. An optical characteristic of a secure feature of the credential may be determined. An expected optical characteristic of the secure feature may be determined based on known properties of the secure feature. A determination as to whether the credential is authentic may be based on a comparison of the determined optical characteristic of the secure feature to the expected optical characteristic of the secure feature.

Abstract: Disclosed embodiments pertain to systems and methods related to user authentication with a virtual payment card. A virtual card number can be requested as a login credential for a user. A virtual card number can be transmitted through a credit card payment network to a financial institution that issued the virtual card for payment authorization. The user can subsequently be authenticated in response to a granted payment authorization by the financial institution. The financial institution can execute a machine learning model trained to infer fraud based on a usage pattern associated with a virtual card number. Granting or denying payment authorization can depend on a confidence score returned by the model regarding the likelihood of fraud. A virtual card number associated with authentication can include one or more distinguishing characteristics in one instance. Further, virtual card numbers can include use restrictions in time and location.

Abstract: Systems and methods for controlling data access through the interaction of a short-range transceiver, such as a contactless card, with a client device are presented. Data access control may be provided in the context of creating and accessing a secure memory block in a client device, including handling requests to obtain create and access a secure memory block via the interaction of a short-range transceiver, such as a contactless card, with a client device such that, once the secure memory block is created in memory of the client device, personal user data may be stored in the secure memory block, and access to the stored personal user data may only be provided to users authorized to review the data.

Abstract: A system and method for improved security in a networked computing environment. The method includes receiving, from a user device, a registration request comprising a user identifier for a user; receiving, from the user device, user credentials to access one or more online accounts associated with the user; accessing the one or more online accounts to retrieve user activity data for the user; analyzing the retrieved user activity data to determine one or more merchants associated with the user; storing, in a database coupled to a server device, a mapping between the user and the one or more merchants; receiving, from a monitoring service, an indication that a first merchant of the one or more merchants has experienced a data breach; and sending a notification to the user in response to determining that the first merchant has experienced a data breach.

Abstract: A method performed by a user device may include obtaining biometric information relating to a user of the user device using a biometric sensor of the user device; determining that the biometric information is valid; generating a biometric indicator indicating that the biometric information is valid; providing a request for a callback from an entity, wherein the request includes the biometric information indicating that the biometric information is valid; and receiving the callback from the entity, wherein the callback is received based on the biometric information indicating that the biometric information is valid, and wherein the callback is associated with an entity identifier that is not provided to the user.

Abstract: Embodiments relate to content presentation and filtering preferences of viewers tied to blockchain technology for improved use and applicability in multiple channels. For example, a blockchain platform is described via which content preferences stored on non-fungible tokens tied to user identities are provided to content presenters. In one embodiment, the platform receives a request indicating an on-chain address for a user non-fungible token. With the on-chain address, the platform queries an on-chain program stored on the blockchain to obtain content preferences stored on the user non-fungible token. After providing the content preferences to a content presenter, the platform monitors a content session between the presenter and the user, for example, by collecting data from the user during the session.

Abstract: Systems and methods for authenticating a user, the method including receiving an image of a user of a device, identifying a first facial descriptor of the user from the received image and from previously captured images of the user, and determining a difference between the first facial descriptor from the received image and that from the previously captured images. The method further includes identifying a second facial descriptor of a non-user from the previously captured images of the user, and applying facial recognition to images stored in a plurality of second social networking profiles associated with a first social networking profile of the user to identify the second facial descriptor from the images stored in the second social networking profiles. Based on the difference and the second facial descriptor, the user may be authenticated.