A transaction platform including at least one or more public, public-private and/or private distributed ledgers or blockchains that together enable the secure effectuation and recordation of one or more transactions while maintaining transaction party confidentiality. The private distributed ledgers or blockchains are able to store, maintain and provide information about the parties related to the transactions which the distributed blockchains or databases are able to utilize in order to securely and quickly validate, execute and record the transactions in a manner that is GDPR and other data privacy law complaint.

Systems and methods for adaptively streaming video content to a wireless transmit/receive unit (WTRU) or wired transmit/receive unit may comprise obtaining a media presentation description that comprises a content authenticity, requesting a key for a hash-based message authentication code; receiving the key for the hash-based message authentication code, determining a determined hash for a segment of the media presentation description, requesting a reference hash for the segment from a server, receiving the reference hash for the segment from the server, and comparing the reference hash to the determined hash to determine whether the requested hash matches the determined hash.

Systems and methods for adaptively streaming video content to a wireless transmit/receive unit (WTRU) or wired transmit/receive unit may comprise obtaining a media presentation description that comprises a content authenticity, requesting a key for a hash-based message authentication code; receiving the key for the hash-based message authentication code, determining a determined hash for a segment of the media presentation description, requesting a reference hash for the segment from a server, receiving the reference hash for the segment from the server, and comparing the reference hash to the determined hash to determine whether the requested hash matches the determined hash.

Methods and systems are provided for encoding audio data from an audio file, wherein the audio data comprises audio samples. Audio data is segmented from the audio file in order to obtain at least one segment. Each segment comprises a time interval of the audio data, and each segment also comprises a plurality of audio samples grouped in frames. A segment index and a description stream containing the segment index is then generated. The segment index comprises the position of the segments within the audio file. A segment stream containing the audio data of one particular segment is then generated. At least part of the audio data is encrypted during the generation of the segment stream with an encryption key.

Methods, apparatus, systems, and articles of manufacture to monitor media are disclosed. An example apparatus includes first means for performing a first mapping of a first media identifier and timestamp to a second media identifier in a look-up table (LUT), the first media identifier and timestamp based on media obtained from a server, the first media identifier to identify the media, means for determining a third media identifier and a second timestamp based on media monitoring information (MMI) obtained from the server, the MMI obtained from the server in response to an access of the media identified by the third media identifier by a media device, second means for performing a second mapping of the third media identifier and the second timestamp to the first media identifier and timestamp in the LUT, and means for crediting access of the media to the media device based on the second mapping.

Virtual site inspections to support clinical trials is disclosed. A frame and glasses subsystem has at least a global positioning system (GPS) and is associated with a first computing device at a physical site where an inspection is conducted. A session is opened in a web-based application on a second communication device that is in communication with, but that is physically remote from, the first computing device. Location tracking using GPS allows for a location of the frame and glasses subsystem to be continuously tracked. A script from the web-based application to the first computing device enables association with a video stream and locations within the physical site. The script enables responses to be provided from the first computing device at the locations. The locations, time stamps, video stream, the responses from the script, and a device identifier is provided immutably to the web-based application.

Virtual site inspections to support clinical trials is disclosed. A frame and glasses subsystem has at least a global positioning system (GPS) and is associated with a first computing device at a physical site where an inspection is conducted. A session is opened in a web-based application on a second communication device that is in communication with, but that is physically remote from, the first computing device. Location tracking using GPS allows for a location of the frame and glasses subsystem to be continuously tracked. A script from the web-based application to the first computing device enables association with a video stream and locations within the physical site. The script enables responses to be provided from the first computing device at the locations. The locations, time stamps, video stream, the responses from the script, and a device identifier is provided immutably to the web-based application.

A media presentation and distribution system communicatively coupled to a client device is provided. The client device receives a media stream from the media presentation and distribution system via a network. The media stream includes media content and one or more tags. The client device further identifies in the received media content, the one or more tags, which corresponds to the overlay-graphic items. The client device further identifies candidate time-periods in the media content based on the one or more tags in the media content. At least one presentation attribute for the overlay-graphic items is identified based on the one or more tags in the media content. The client device further presents the overlay-graphic items at the candidate time-periods on the media content based on a degree of correlation between the identified tag in the media content and a corresponding context for the media content at the candidate time-period.

A media presentation and distribution system communicatively coupled to a client device is provided. The client device receives a media stream from the media presentation and distribution system via a network. The media stream includes media content and one or more tags. The client device further identifies in the received media content, the one or more tags, which corresponds to the overlay-graphic items. The client device further identifies candidate time-periods in the media content based on the one or more tags in the media content. At least one presentation attribute for the overlay-graphic items is identified based on the one or more tags in the media content. The client device further presents the overlay-graphic items at the candidate time-periods on the media content based on a degree of correlation between the identified tag in the media content and a corresponding context for the media content at the candidate time-period.

Systems and methods are described for providing variable-length media clips based upon a received media stream. An exemplary system for providing media clips to users includes a database comprising a list of rules associated with a plurality of programs, as well as a first server and a second server. The first server receives information about a particular program being viewed by a media player and obtains rules from the database for the identified program that are transmitted to the media player. The second server receives a media clip of the particular program being viewed from the media player, wherein the media clip is created at the media player in accordance with the rules corresponding to the program, and subsequently makes the media clip available to the users.