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That’s not what “rewrite history” is generally accepted to mean. Substituting historical transactions with alternatives, and thereby reverting all dependent tra
by garmaine 6y ago
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.
- colordrops 6y agoBut 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.
- garmaine 6y agoNot if you control more than half of the hashpower. Then it’s just a matter of time.