ACKNOWLEDGEMENT
An acknowledgment is by far the most typical of notarial certificates I see. It is a formal declaration before a Notary Public, by someone who signs a document and confirms that the signature is authentic.
Sample Certificate of Acknowledgment
State of Texas
County of Collin
On [Date], before me, Tonya Dangerfield, Notary Public for the State of Texas personally appeared, [Name of The Signer] proved to me on the basis of satisfactory evidence to be the person whose name is subscribed to the within instrument and acknowledged to me that they executed the same in their authorized capacity, and that by the signature on the instrument the person or the entity upon behalf of which the person acted, executed the instrument.
Witness My Hand and Official Seal
JURAT
A Jurat is a certification added to an affidavit, or document stating when, where, and before whom such affidavit was made.
Sample Certificate For a Jurat
Sworn to and subscribed before me on the [Date], before me, Tonya Dangerfield, Notary Public for the State of Texas by, [Name of The Signer].
Witness My Hand and Official Seal
AFFIDAVIT
An Affidavit is a voluntary declaration of facts, written down and sworn to or affirmed by the declarant (“affiant”) before a Notary.
Sample Notary Certificate for Affidavit
State of Texas
County of Collin
On [Date], before me, Tonya Dangerfield, Notary Public for the State of Texas personally appeared, [Name of The Signer] who being duly sworn according to law, deposes the following:
[A Written Statement follows]
Witness my Hand and Official Seal