Verify apple product

No way for us to verify it.

Use its serial or its iMEI number and check if it is recognized here:--> Find information about your warranty or AppleCare plan - Apple Support

Regards

Giulio

Have you successfully activated your iPad and signed-in to iCloud? If so, you should find your device listed in your iPad Settings:

Settings > [Your Name / AppleID] - scroll down the main pane to find your iPad details. If present, your iPad is genuine.