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@ -461,7 +461,7 @@ validated by full nodes. See
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<<mining>> for a detailed explanation.
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Bitcoin's system of counterfeit protection is based on computation.
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Transactions are bundled((("transactions", "blocks")))((("blocks"))) into _blocks_. Blocks have a very small header
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Transactions are bundled((("transactions", "in blocks", secondary-sortas="blocks")))((("blocks"))) into _blocks_. Blocks have a very small header
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that must be formed in a very specific way, requiring an enormous
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amount of computation to get right--but only a small amount of
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computation to verify as correct.
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