<http://schema.org/description>
"Every signer must be positively identified for a notarization to take place. But signers do not always possess acceptable identification documents. When that happens, an alternative is to use a \u201Ccredible identifying witness.\u201D"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.nationalnotary.org/notary-bulletin/blog/2011/10/hotline-tip-credible-identifying-witness>