It was quite lovely though how our favorite Kremlintroll announced that a serial number would be the ultimate "proof" and sure enough, "proof" soon appeared.
There are easier ways to determine the culprit of what happened - for example, check the serial numbers on the tail of the rocket
there is information about the serial number of the rocket from Kramatorsk
I did not expect that the serial number would come up so quickly, especially since the Ukrainian media diligently obscured it in their reports. But the Italian journalists showed the video without retouching, special thanks to them.