I know you’re joking, but I’m genuinely wondering, would that actually resolve the problem of (then) ancient forgery?
Our proof-of-work difficulty is trivial compared to what’s possible a few thousand years from now. So for people a million years from now to trust our records, they’d also have to trust people a thousand years from now not to simply have forged our part of the blockchain, which might be trivial for them given their hash power.
