The history of a second hand car is currently scattered all over the place, even with missing data. Some entities try to collect it all, but it is difficult. E

The history of a second hand car is currently scattered all over the place, even with missing data. Some entities try to collect it all, but it is difficult. Every car has a unique VIN, so imagine all data of the car is written to a blockchain. Maintenance, mileage, accidents, etc. When you buy a car, you check the blockchain and get a complete history, unable to tamper with afterwards. Of course you have to trust the entities that write the info. But the more trustworthy entities, the harder a malicious entity can withhold or provide false info.