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Title: What restrictions are placed on the header by ASICs? Post by: TierNolan on August 10, 2017, 05:22:53 PM What restrictions does mining hardware place on the Bitcoin block header?
Can you give mining hardware any 80 byte header and it will search it (updating the 4 nonce bytes and maybe the timestamp)? Does the version field have to be positive? Does the difficulty target have to be a reasonable value? Does the previous hash have to have at least 32 zeros? Does the merkle root have to encode at least a coinbase for the extraNonce? |