Consider a Tor hidden service. I want to retrieve the main page of such website in such a way that I can later prove to a skeptical third party that the website with this certificate (identified by the public key in the address) provided me with this exact HTML page.
Is this possible assuming the website does not install additional software and is just a normal website on the Darknet?
I know this cannot be done with SSL/TLS ( How can you prove that a certain file was downloaded from a certain website? ), how does the situation look within Tor?