this is a proof that a user viewed a webpage rather than a proof that a webpage existed with given contents, which would need many users to find consensus on th

this is a proof that a user viewed a webpage rather than a proof that a webpage existed with given contents, which would need many users to find consensus on the content of a webpage. as a result of this model, there's no way to verify the content is 'correct', since the user can arbitrarily modify it before submitting so my understanding of this is that cryptographically it can be used to say that a user submitted some content at a given time. what's the use case for this?