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Obviously the block author selection cannot be random if all network participants must converge on the same choice. In some systems, the selection is based on previous blockdata which is assumed to have pseudorandom properties and is already agreed upon. Some of these approaches are considered gameable, but it appears that many networks have come to the ...


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I think this question has a faulty premise. What usually gets elected in POS systems is the author of the next block. The author of the next block is not the only validator of the blockchain. Every single full node validates the entire chain, so an invalid block will be rejected by all other participants. Whether or not there is a possibility of a fork ...


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