Hello wise friends, according to this thread it shouldn't be necessary to go to the Registro Nacional de las Personas after getting notice of residency; that the DNI shows up in the mail. However, last week I was approved for temporary residency, and at the end of the letter it says:
"Regístrese e infórmese a la DIRECCION NACIONAL DEL REGISTRO NACIONAL DE LAS PERSONAS para la toma de razón. Hecho, archívese."
I guess that means I need to take my documents there anyway?