It least at one point in the 2006-2010 range, Google would display a Chilling Effects link to the actual DMCA takedown request when some of your search results were censored by a DMCA takedown. The DMCA takedown request is required to specifically enumerate the censored URLs.

The end result was a DMCA takedown often resulted in an indirect "Certified by Sony" link to non-fake infringing copies.