And it still shows my point- that eartags alone, with the technology that now exists, are worthless for proving ownership..... Sorry Oldtimer, I will take issue with that statement as www.scoringag.com tracks every movement of any enitity in real time including the gps of every read of every tag as the technology now exisits. Anyone going to Tularie's World Ag Expo in Ca. can check out the demo at the I.D.ology booth