Hard Problems in Cryptocurrency: Five Years Later

Re:Hard Problems in Cryptocurrency: Five Years Later by nootropicat on Sunday November 24, 2019 @05:59AM (#21619628)

Wouldn't work, the security of PoW explicitly relies on waste. If the external value from mining is X and an attack costs Y, the net cost of the attack is X-Y=Z, so the real security is Z, the waste portion.

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Re:Hard Problems in Cryptocurrency: Five Years Later by koheripbal on Sunday November 24, 2019 @09:32AM (#21620628)

Not necessarily waste, no. It just needs to be unpredictable.

I think PrimeCoin was a great example of a PoW that had very small but non-zero value.

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