Your story sounds invented to me to be honest, since you don't mention how the transaction was legally recorded.

If I buy a house or land, I have to go to the notary and the property registry where it is documented that I acquired such property, for X money and that the form of payment is such.

Lately I have seen several stories of this one that talk about using Bitcoin as a means of payment and it gives me that at least some of them have more to do with trying to get merit than with a description of reality.