Sometimes there is a match between engine number and frame number. But this varied on different Ducati models over the years.
But the Vehicle Identification Number is a stand-alone identification for that vehicle for purposes of registration and insurance. There should be records of the other numbers where the VIN is recorded for registration.
If you are attempting to verify the legality/history of your bike that may be problematic, as (I mentioned this in response to your search for a tank) your bike was more than likely a grey import from Japan.
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