One of the ways to know you're dealing with copyrighted content is the well-known copyright logo (©). While it is not mandatory to display this logo on videos or other copyrighted content, it is a clear, widely supported method of demonstrating that a viewer and/or user is dealing with copyrighted content.
To display copyright information on your TradeCast-powered video platform, use the 'Author' function. The 'Author' function can be found - per uploaded video in the Media Overview - under 'Edit'.