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[[mining]]
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== Mining and Consensus
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The word "mining" is somewhat
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The ((("mining", "purpose of")))((("bitcoins", "mining", "purpose of")))word "mining" is somewhat
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misleading. By evoking the extraction of precious metals, it focuses our
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attention on the reward for mining, the new bitcoins created in each
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block. Although mining is incentivized by this reward, the primary
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@ -27,7 +27,7 @@ Mining
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is one of the mechanisms by which Bitcoin's _consensus security_ is _decentralized_.
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====
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Miners record new transactions on the global blockchain. A
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Miners ((("bitcoins", "mining", "operational overview", id="bitcoin-mining-overview")))((("mining", "operational overview", id="mining-overview")))record new transactions on the global blockchain. A
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new block, containing transactions that occurred since the last block,
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is _mined_ every 10 minutes on average, thereby adding those
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transactions to the blockchain. Transactions that become part of a block
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@ -51,7 +51,7 @@ In some protocols built on top of Bitcoin, the topological order of
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Bitcoin transactions is also used to establish a sequence of events;
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we'll discuss that idea further in <<single_use_seals>>.
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Miners receive two types of rewards in
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Miners((("bitcoins", "mining", "incentives")))((("mining", "incentives")))((("incentives"))) receive two types of rewards in
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return for the security provided by mining: new bitcoins created with each
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new block (called the _subsidy_), and transaction fees from all the transactions included in
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the block. To earn this reward, miners compete to satisfy a challenge
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@ -94,7 +94,7 @@ decentralized consensus mechanism that underpins Bitcoin's security.
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To understand mining and consensus, we will track Alice's transaction
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as it is received and added to a block by Jing's mining equipment. Then
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we will follow the block as it is mined, added to the blockchain, and
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accepted by the Bitcoin network through the process of emergent
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accepted by the Bitcoin network through the process of ((("bitcoins", "mining", "operational overview", startref="bitcoin-mining-overview")))((("mining", "operational overview", startref="mining-overview")))emergent
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consensus.
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=== Bitcoin Economics and Currency Creation
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