The oral oaths are ceremonial. There is a written oath signed shortly before the inauguration.
Got a reference to that? First I've ever heard of any written oath, for the President and VP that is. My oath was done that way. Written and oral, belt and suspenders. I've posted that observation several times, and no one ever brought up any Presidential written oath. I thought there should be one, executed any time after the counting of the electoral votes and before noon on January 20th, so I'd be anxious to see evidence that there really is a written version, presumably on file somewhere.
There is a written oath signed shortly before the inauguration.
Can you link or cite where this comes from.