Abstract: Embodiments include method, systems and computer program products for digital rights management. Aspects include receiving, by a processor, a request to access media content from a requestor, wherein the media content is protected by a digital rights management (DRM) system that requires a license, obtaining context data associated with the requestor, analyzing the context data to determine a validity score for the request, and transmitting a license or access key to the requestor based on determining that the validity score exceeds a threshold.

Abstract: A pipe pig for refinery heater tubes is disclosed. The pipe pig has arcuate cleaning elements which form an expandable circumference. Each of the arcuate cleaning elements has a scraping edge. A spring element biases the arcuate cleaning elements radially outward. The pipe pig may have structural components made from titanium alloys and arcuate cleaning elements made from carbon-carbon composites. A method for cleaning coking out of refinery heater tubes using the pipe pig is also disclosed.

Abstract: A pipe pig for refinery heater tubes is disclosed. The pipe pig has arcuate cleaning elements which form an expandable circumference. Each of the arcuate cleaning elements has a scraping edge. A spring element biases the arcuate cleaning elements radially outward. The pipe pig may have structural components made from titanium alloys and arcuate cleaning elements made from carbon-carbon composites. A method for cleaning coking out of refinery heater tubes using the pipe pig is also disclosed.

Abstract: In one embodiment, an index is created by a first user for a specified video program that is applied when a second user request viewing the specified video program. The index is typically embodied by a file, which identifies one or more content segments of the video program that are not presented to the viewing user. The viewing user selects the program for viewing, typically using a video on-demand service offered by a cable service provider, and potentially indicates the index file to be applied when viewing the program. The cable service provider streams the video program to the user, but excises the one or more content segments identified in the index file, thus providing a customized viewing experience to the viewing user.