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Being cheap to verify is one of the defining characteristics of a good PoW. Only PoW verification allows you to identify the chain with the most work. Which is
by tromp 7y ago
Being cheap to verify is one of the defining characteristics of a good PoW. Only PoW verification allows you to identify the chain with the most work. Which is needed to identify how much money the verifiers have at stake. So trusting verifiers to help you identify the most worked chain has no solid footing.
- zozbot234 7y agoAny "search"-like problem can become cheap to verify simply by augmenting the solution with a verification certificate. It's quite likely that many ML training tasks are "search"-like in this sense, hence cheap to verify as well.
- octocop 7y ago>Any "search"-like problem This is a pretty broad statement. Verifying a shortest path or something like this would not be cheap to verify