I remember us talking about digital corpses awhile back and it got kind of shot down since no corpses are left normally, but it crept back into my mind.
When digimon digivolve they add data to themselves and when they "die" they are reduced back to their base data. All that remaining data just sorta scatters around. We could say that it stays and that if someone wants to they can even make use of it. Like when killing a DORUmon you can keep its pelt, kill a Veemon keep its claws, and so forth. I don't imagine everyone is capable of this data gathering, but some digimon yes.
DORUmon also shows that data from digimon can be gathered since he drains data when he bites people.