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I hear a lot about hash rates. How are aggregate hash rates confirmed/reported? Does a miner submit every single attempted hash to the network as a potential so

I hear a lot about hash rates. How are aggregate hash rates confirmed/reported? Does a miner submit every single attempted hash to the network as a potential solution or do miners self-report their total hash rates?

nicky0 9y ago
It is not necessary for miners to report any stats. Hash rate is simply inferred from the average time taken to find a block, multiplied by the current difficulty.