THIS IS NOT LEGAL ADVICE.
A recorded deed is prima facie evidence of a conveyance, but it is not always required by law to record a deed. Check your state laws and be aware of sneaky wording, such as this:
KRS 382.110
(1) All deeds, mortgages and other instruments required by law to be recorded...
Based on that wording, it's obvious that there are some deeds NOT required by law to be recorded. If this is your state and you're buying personal property WITHOUT A MORTGAGE, you might consider creating a deed or bill of sale between you and the seller and get it notarized as you normally would. The seller can call the county clerk and tell them "I've sold the property, but the buyer wants to remain anonymous. Please remove my name from the tax rolls." If they want proof, send them a copy with the names blacked out.
If the buyer wants to sell the property later, it can then be recorded OR the new buyer can do the same thing and keep the other original as well as their new deed so as to prove chain of title.
Did you notice what else happened?