An identity document is any document which may be used to verify aspects of a person's personal identity.
Passport
A library card is not acceptable for verifying identity.
A library card is not acceptable for verifying identity.
A Home Affairs identity document is a smart ID card.
Library Card
library card
Libarary Card
An attestor is simply a witness, someone who 'attests' to the truth of some matter. For instance, a notary public attests to the identity of a person signing a legal document by signing and affixing their seal to the document. Therefore, the notary is an attestor to the identity of whomever signed the document. This negates the need of all parties affected by the document to be present during the signing. The notary is not attesting to the truth or accuracy of the document itself, but only that the person signing the document provided sufficient evidence of their identity to them.
certificate
certificate
If you notarize a document in SD, you are verifying the identity of the person signing the document in SD. Where the document gets filed afterward is not the notary's concern.