Not really. What happens when the sellers pass away and someone has to check the chain of transmission ? Do you have to go to each spouse in order and ask them

Not really. What happens when the sellers pass away and someone has to check the chain of transmission ? Do you have to go to each spouse in order and ask them to retrieve "you know, a big file full of numbers" somewhere in the deceased's backup usb key? You need a public and immutable chain of authentified transactions for that to be an instant check.