A baata of Degh at Gurdwara Sri Panja Sahib in Pakistan, after the ardaas when the cloth was removed there was this hand print left in the degh, the hand print is actually rising up from the degh, which seems really hard for someone to fake. If you've ever done degh dee seva, then you would know to try to mimic a hand and have it actually rising out from the degh is close to impossible.
ਸਤਿਗੁਰਬਚਨਕਮਾਵਣੇਸਚਾਏਹੁਵੀਚਾਰੁ॥