In some embodiments, systems and methods are provided a retail point-of-sale (POS) hardware management system, comprising: an intermediary system control circuit configured to execute computer program modules comprising a hardware management module configured to operate as an intermediary module between multiple different sets of client POS systems, a plurality of different sets of hardware systems configured to be engaged by the client POS systems, and a plurality of shared resource applications; the hardware management module comprising a plurality of hardware manager sub-modules each corresponding to one of the sets of hardware systems; each of the hardware manager sub-module is configured to output communications and receive communications in accordance with a single predefined hardware communications protocol, of a set of a plurality of predefined hardware communications protocols, corresponding to the set of hardware systems regardless of a type of hardware system or manufacturer.

Systems and methods for creating video watch parties are shown and described. Video and audio data indicative of the content being displayed on a plurality of smart TVs is compared to stored data in a content recognition database to determine what content is being viewed by each of a plurality of viewers at a given time. Viewers watching the same content are invited to become members of a watch party, and the televisions of those who accept the invitation are operatively connected to one another in a peer-to-peer network, enabling them to view the watch party content on a watch party screen that displays the watch party content and images or graphical icon representations of each other member of the watch party who is watching the content. Watch party participants can communicate with one another on the watch party display orally, using text messages in a text message area of the display, or by projecting emojis in the content region of other participants' displays.

Systems and methods for creating video watch parties are shown and described. Video and audio data indicative of the content being displayed on a plurality of smart TVs is compared to stored data in a content recognition database to determine what content is being viewed by each of a plurality of viewers at a given time. Viewers watching the same content are invited to become members of a watch party, and the televisions of those who accept the invitation are operatively connected to one another in a peer-to-peer network, enabling them to view the watch party content on a watch party screen that displays the watch party content and images or graphical icon representations of each other member of the watch party who is watching the content. Watch party participants can communicate with one another on the watch party display orally, using text messages in a text message area of the display, or by projecting emojis in the content region of other participants' displays.

Some embodiments provide a non-transitory machine-readable medium that stores a program. The program transmits via a multicast communication protocol a message specifying a set of services offered by the device to a plurality of computing devices. The program further establishes a connection with a computing device in the plurality of computing devices. The program also receives, through the connection, a set of data for the set of services. The program further applies the set of services to the set of data.

Some embodiments provide a non-transitory machine-readable medium that stores a program. The program transmits via a multicast communication protocol a message specifying a set of services offered by the device to a plurality of computing devices. The program further establishes a connection with a computing device in the plurality of computing devices. The program also receives, through the connection, a set of data for the set of services. The program further applies the set of services to the set of data.

Methods, systems, and media for presenting media content are provided. In some embodiments, the method comprises: receiving, at a streaming media device connected to a display device, an instruction, from a mobile phone communicatively coupled with the streaming media device using a peer-to-peer networking protocol, to launch an application for presenting media content on the display device; in response to receiving the instruction, transmitting a request to a media content sharing service associated with the application for presenting media content to render a video player on the display device; receiving, from the mobile phone, an instruction to present a media content item on the display device using the video player; transmitting, to the mobile phone, a request for a first portion of the media content item, wherein a plurality of portions of the media content item including the first portion have been previously downloaded to the mobile phone; receiving, from the mobile phone, the first portion of the media content item using the peer-to-peer networking protocol; storing the first portion of the media content item in memory of the streaming media device; and causing the first portion of the media content item to be presented on the display device using the video player by playing the stored first portion of the media content item from the memory of the streaming media device.

Methods, systems, and media for presenting media content are provided. In some embodiments, the method comprises: receiving, at a streaming media device connected to a display device, an instruction, from a mobile phone communicatively coupled with the streaming media device using a peer-to-peer networking protocol, to launch an application for presenting media content on the display device; in response to receiving the instruction, transmitting a request to a media content sharing service associated with the application for presenting media content to render a video player on the display device; receiving, from the mobile phone, an instruction to present a media content item on the display device using the video player; transmitting, to the mobile phone, a request for a first portion of the media content item, wherein a plurality of portions of the media content item including the first portion have been previously downloaded to the mobile phone; receiving, from the mobile phone, the first portion of the media content item using the peer-to-peer networking protocol; storing the first portion of the media content item in memory of the streaming media device; and causing the first portion of the media content item to be presented on the display device using the video player by playing the stored first portion of the media content item from the memory of the streaming media device.

An example operation may include one or more of receiving a location of an output stored on a data structure of a blockchain, where the location comprises a path of hashes generated by a reduced-step hash instead of a full-step hash of the blockchain, performing an approximate hash verification on the path of hashes based on the reduced-step hash values to verify whether the output is unused, and in response to a determination that the output is unused as a result of the approximate hash verification, approving a use of the output by a client associated with the output.

Devices, methods, and systems for secure communications on a computing device. A host operating system (OS) runs on a host processor in communication with a host memory. A secure OS runs on a coprocessor in communication with a secure memory. The coprocessor receives information from an external device over a secure peer-to-peer (P2P) connection. The secure P2P connection is managed by the secure OS and is not accessible by the host OS.

Devices, methods, and systems for secure communications on a computing device. A host operating system (OS) runs on a host processor in communication with a host memory. A secure OS runs on a coprocessor in communication with a secure memory. The coprocessor receives information from an external device over a secure peer-to-peer (P2P) connection. The secure P2P connection is managed by the secure OS and is not accessible by the host OS.