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Questions tagged [validation]

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How blockproducers validate transaction?

How blockproducers authenticate or validate transaction ? Which algorithm used to do that ?(other than dpos) i know that there is synchronization for transaction(for blockproducer's side) but what ...
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Why are there only 21 validation nodes and not more?

I mean, why not a hundred validation nodes, for example? Anyway, why every node couldn't be a validation node? Does it punish the performance?
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Validation for contract which has data which varies

How does the EOS contract system handle data which varies? This could be from using a true random number, or receiving real-world data like a token price. Every time the contract executes, different ...