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Re:What Satoshi Did Not Know (2015) [pdf] by garmaine on Saturday September 05, 2020 @06:57AM (#24382719)
That’s not what “rewrite history” is generally accepted to mean. Substituting historical transactions with alternatives, and thereby reverting all dependent transactions is rewriting history. By doing so you can invalidate any transaction, so long as you control at least one input in the ever expanding web of prior transactions.
Re:What Satoshi Did Not Know (2015) [pdf] by colordrops on Saturday September 05, 2020 @12:21PM (#24384707)
But that once again is only current transactions. It gets exponentially harder to interfere with transactions with each block in the past. And if you just decided to do so with arbitrary hash difficulty to make it faster, it will be very obvious and easy to reject.
Re:What Satoshi Did Not Know (2015) [pdf] by garmaine on Saturday September 05, 2020 @07:11PM (#24387594)
Not if you control more than half of the hashpower. Then it’s just a matter of time.