How can you launder something with a traceable serial/transaction number? I don’t think it’s possible. The best you can do is mix it with enough other transactions that it becomes murky as to the final destinations.
Ex: If half of the bitcoins used to buy a car were fraudulent, would you need to return half the car?
Ex: If half of the bitcoins used to buy a car were fraudulent, would you need to return half the car?