ch.02: Let us not be too assuming about the gender of "each miner"

It is too assuming to suppose that the gender of "each miner" is masculine. Hence I propose to use [singular they](https://en.wikipedia.org/wiki/Singular_they). More on singular they [here](https://www.grammarly.com/blog/use-the-singular-they/). 'He' was substituted with 'they' only when it refers to "each miner", i.e. miners in general, and not when it refers to Jing. In the latter case I have left he unchanged.
3 years ago · 65dd6b8be0
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@ -254,7 +254,7 @@ Jing started mining in 2010 using a very fast desktop computer to find a suitabl

 ((("blocks", "mining transactions in")))New transactions are constantly flowing into the network from user wallets and other applications. As these are seen by the bitcoin network nodes, they get added to a temporary pool of unverified transactions maintained by each node. As miners construct a new block, they add unverified transactions from this pool to the new block and then attempt to prove the validity of that new block, with the mining algorithm (Proof-of-Work). The process of mining is explained in detail in <<mining>>.

-Transactions are added to the new block, prioritized by the highest-fee transactions first and a few other criteria. Each miner starts the process of mining a new block of transactions as soon as he receives the previous block from the network, knowing he has lost that previous round of competition. He immediately creates a new block, fills it with transactions and the fingerprint of the previous block, and starts calculating the Proof-of-Work for the new block. Each miner includes a special transaction in his block, one that pays his own bitcoin address the block reward (currently 6.25 newly created bitcoin) plus the sum of transaction fees from all the transactions included in the block. If he finds a solution that makes that block valid, he "wins" this reward because his successful block is added to the global blockchain and the reward transaction he included becomes spendable. ((("mining pools", "operation of")))Jing, who participates in a mining pool, has set up his software to create new blocks that assign the reward to a pool address. From there, a share of the reward is distributed to Jing and other miners in proportion to the amount of work they contributed in the last round.
+Transactions are added to the new block, prioritized by the highest-fee transactions first and a few other criteria. Each miner starts the process of mining a new block of transactions as soon as they receive the previous block from the network, knowing they have lost that previous round of competition. They immediately create a new block, fill it with transactions and the fingerprint of the previous block, and start calculating the Proof-of-Work for the new block. Each miner includes a special transaction in their block, one that pays their own bitcoin address the block reward (currently 6.25 newly created bitcoin) plus the sum of transaction fees from all the transactions included in the block. If they find a solution that makes that block valid, they "win" this reward because their successful block is added to the global blockchain and the reward transaction they included becomes spendable. ((("mining pools", "operation of")))Jing, who participates in a mining pool, has set up his software to create new blocks that assign the reward to a pool address. From there, a share of the reward is distributed to Jing and other miners in proportion to the amount of work they contributed in the last round.

 ((("candidate blocks")))((("blocks", "candidate blocks")))Alice's transaction was picked up by the network and included in the pool of unverified transactions. Once validated by the mining software it was included in a new block, called a _candidate block_, generated by Jing's mining pool. All the miners participating in that mining pool immediately start computing Proof-of-Work for the candidate block. Approximately five minutes after the transaction was first transmitted by Alice's wallet, one of Jing's ASIC miners found a solution for the candidate block and announced it to the network. Once other miners validated the winning block they started the race to generate the next block.