Certified copy by notary (200 pesos) ir police (10 pesos).
the day I got my dni. I made photocopies..went to notary and got them certified...and carry them in my wallet ever since. anyone asks my id..thats what I show notarized dni copy.always always always worked for past many years on the streets of caba
When I used to come as a tourist, I used to take color copies of the first page of my passport and the entry stamp and carry it in my wallet. Anyone asked, showed it. Always worked on the streets of CABA.