According to the Motion Picture Association of America (MPAA) this seemingly innocent 32-digit hexadecimal number is verboten. Slashdot reports they sent out DMCA takedown notices (sample at chillingeffects.org) to several sites that spread the number 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0.
The DMCA, or Digital Millennium Copyright Act is a U.S. copyright law. A takedown notice is a letter or other message that a legitimate copyright holder can send to an internet service provider, requesting that specific infringing material be taken off the Net.
So why and how would an association of the motion picture, home video and television industries attempt to maintain and defend their copyright in a 32-digit hexadecimal number, 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0?