I have heard from my sources that Oaths, Affirmations and Depositions all need to be signed by the Notary in California. This is on page 28 in the 2019 handbook near the top of the page.

But, how do you sign an Oath? An Oath is given in thin air? Unless you have a certificate stating that you gave an Oath. Or if the Oath is part of a document that is signed by all parties. Hmm. This is very odd. I wonder if any of our members have ever signed an Oath. Most of our Notaries don’t even know how to give Oaths correctly. Please let me know.

BTW, there is suggested verbiage for Jurat Oaths in the 2019 handbook on page 12. You can improvise upon it as there is no official verbiage.