An independent sessionless, userless, storageless HTML5 app for adding rich metadata to different media types. Actually any file or internet address could be annotated by this convention.
There are often situations, where some media needs to be annotated and EXIF is not really helpful because its only relevant for single picture.
- add geolocation, timestamps, links, descriptions, titles etc to media (like EXIF, but universal for all media types);
- mark regions on media;
- add multilingual subtitles to videos;
- create in-video navigation;