Immigracion check in upon departure?

Did they stamp the copy of your PR card that they made? If not, then no need to go to their office. Just bring your own copy of your card???

Yes, migración stamped the obverse side of the copy of my RP card. They also hand printed my flight number on it. They did not stamp the reverse side. It appeared that the person was entering information into a computer.

Migración entered my information in their book and had me sign the book.

The migración person emphasized that I was to give it to the airline personnel before boarding.

I took phone photos of both sides of the document.