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The original was posted on /r/nanocurrency by /u/Faster_and_Feeless on 2025-07-27 17:16:34+00:00.
You know the whole 51% attack vector that is a potential risk to double spending on proof of work (POW) cryptos like Bitcoin?
My question, is this sort of attack even possible on Nanocurrency? The way I understand the consensus in Nano, it seems like it would be impossible to do this type of attack, even if you had more than 67% of the vote weight. It only takes 1 confirmation for a transaction to be immutable and it happens in about 350ms. What am I missing here?
Can some knowledgeable people explain how nano's consensus works? Is a double spend even possible, and if so, what would it take to accomplish, and how would it work to do that? What all would it require?