[MichaelGG]

Follow your thought through: what prevents them rewriting an alternative blockchain history?

Why can't they apply that to digital signatures with timestamps? This is a solved problem for years. You could use the NSTB as a timestamping authority.

[mrtksn]

Walk me through your implementation and I will walk you through the blockchain implementation and see the strengths and weaknesses.

You're just an internet person triggered by a question, really unpleasant attitude btw. Very closed even to considering an exotic solution and angry as if I'm implementing the blockchain at this very moment, are you in your 50s by any chance? Or maybe personal problems or no sex for a prolonged period or something like that? Why Are you acting like such an unpleasant and rude person?