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Questions concerned with the technical details of mining such as blockheader assembly, or details in the mining algorithm. Questions about the conceptual nature of mining should rather be tagged with [mining-theory].

1 vote

Is my idea of getwork protocol for bitminer right?

X-BCID is a custom extension used only by BitMinter's getwork implementation. It's a block change ID. In case long poll isn't working optimally or block changes happen too fast for long poll to catch …
Dr.Haribo's user avatar
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3 votes

How do transactions fit into mining?

The transactions are already there when you are mining. You are hashing the block header which contains a merkle tree root that connects the list of transactions and block header together. After you …
Dr.Haribo's user avatar
  • 8,469
1 vote

Bitcoin pool and getwork data validity

When miners submit a proof of work to a pool, you will first want to check that the proof of work is valid. The proof of work consists only of a bitcoin block header. You need to check that each part …
Dr.Haribo's user avatar
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1 vote
Accepted

Which miners support generating their own midstate?

You can see which miners support what features here: https://en.bitcoin.it/wiki/Getwork_support "midstate" is the feature you are looking for in this case.
Dr.Haribo's user avatar
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2 votes
Accepted

How soon does bitcoind incorporate locally solved blocks into its 'getwork' output?

bitcoind will act on the block you submit immediately. But there is no "right after that". Anything can happen between two requests to bitcoind. The responses you get from bitcoind represent a snapsho …
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