<p>I don't really understand which transactions a miner includes in a block. Since the transactions are hashed, any newly included transaction in a block should cause a restart of finding the correct nounce, shouldn't it? So a miner has to collect the whole set of transactions he wants to include in the block he is calculating for before beginning to find the nounce?</p>

<p>I presume it works the following way:
A Miner collects all transactions reaching him while the network still calculates the nounce for the block before. If he receices a newly found block from another miner, the includes all transactions that reached him up to this time and begins trying to finde the node. Is this correct?</p>

<block><mining-theory><transaction-selection>
How long do miner collect transactions to include in a block?
Marcel
# How long do miner collect transactions to include in a block?

(Asked by: username_0 on 2013-11-13)

I don't really understand which transactions a miner includes in a block. Since the transactions are hashed, any newly included transaction in a block should cause a restart of finding the correct nounce, shouldn't it? So a miner has to collect the whole set of transactions he wants to include in the block he is calculating for before beginning to find the nounce?

I presume it works the following way:
A Miner collects all transactions reaching him while the network still calculates the nounce for the block before. If he receices a newly found block from another miner, the includes all transactions that reached him up to this time and begins trying to finde the node. Is this correct?

**Tags:** block, mining-theory, transaction-selection


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