identification properties

Hello


I'm working on a de-identification module for RDF data. Our team have
translated patient databases to RDF and we need to know which properties
are used for storing identification data, such as name, passport number,
date of birth and other sensitive data. The intent is allow researchers to
see the clinical data but avoid unauthorized users to know whose data is it.

I'm looking for some (meta-)property or class that, when applied to a
property (such as vcard:hasName), means that this property contain person
identification data. I've looked on foaf and vcard and found nothing
(although vcard description actually group identification properties
together in this[1] document). My last resource would be to create a
(meta-)property:

- vcard:hasName subPropertyOf something:personIdentificationProperty

Any thoughts on that? Is there a way to do that already defined elsewhere?
Or, is the proposed solution above adequate?

Thanks !


1: http://www.w3.org/TR/vcard-rdf/#Identification_Properties


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diogo patrão