Yes, you can order an official Porsche Tequipment Certificate of Authenticity from here:
http://www.porsche.com/filestore.aspx/default.pdf?pool=usa&type=download&id=1ae0ec77-7a5b-4245-9fbb-2e1a4d4e702d&lang=none&filetype=default
They are $95. If you're a PCA member, you can save $10 off that.
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Certificate of Authenticity
We are pleased to offer you a Certificate of Authenticity for your
Porsche. This valuable document includes your vehicles original factoryinstalled
options, exterior and interior color, engine number and
transmission number, production completion date (Birth Date) if available
and manufacturer’s suggested retail price (MSRP) if available.
This can prove to be invaluable for restoration, resale and for displaying
your Porsche at official Porsche concourse events, such as the annual
Porsche Club Parade. Certificates do not include production number,
selling dealer, previous owners, warranty history, standard equipment,
and technical information. It will only include the information listed above."