> ... if only there was a big database of copyrighted works.
Essentially all works are copyrighted under U.S. law, except those made by the U.S. Government, those whose copyright has expired (OLD stuff), other-media representations of a public domain work (e.g., a photograph of the Mona Lisa), and those explicitly placed into the public domain by the author.
Essentially all works are copyrighted under U.S. law, except those made by the U.S. Government, those whose copyright has expired (OLD stuff), other-media representations of a public domain work (e.g., a photograph of the Mona Lisa), and those explicitly placed into the public domain by the author.