The four most famous international exchanges:

Binance INTL	OKX INTL	Gate.io INTL	Huobi INTL
China Line　APP DL	China Line　APP DL	China Line　APP DL	China Line　APP DL

Note: The above exchange logo is the official website registration link, and the text is the APP download link.

Initially, there were many coins that could be mined with CPUs, including Bitcoin, which was mined with the CPU. Satoshi Nakamoto mined the world's first genesis block with his computer CPU.

However, the era of CPU mining has long passed, and Bitcoin mining is now the era of ASIC mining and large-scale cluster mining .

After all this, still want to use CPU mining? Take Ethereum as an example:

You can mine Ethereum with your computer's central processing unit (CPU). It is no longer profitable since GPU miners are two orders of magnitude more efficient. However, you can use CPU mining on the Morden testnet or private chain to create the Ethereum you need to test contracts and transactions without spending real Ethereum on the live network.

Note: Testnet Ethereum has no value other than for testing purposes (see testnet).

Using geth

When starting an Ethereum node with geth, mining is not the default. With CPU mining mode turned on, you will use the --mine command line option. The -minerthreads parameter can be used to set the number of parallel mining threads (defaults to the total number of processor cores).

1geth --mine --minerthreads=4

You can also start and stop CPU mining from the console during execution. miner.start takes an optional argument for the number of miner threads.

1234> miner.start(8)true> miner.stop()true

Note that mining real ether only makes sense if you are synced with the network (since you are mining on top of consensus blocks). Therefore the Ethereum blockchain downloader/synchronizer will delay mining until sync is complete, after which mining will automatically start unless you cancel it with miner.stop().

In order to earn ether, you must have an etherbase (or coinbase) address set. This etherbase defaults to your first account. If you do not have an etherbase address, geth
--mine will not start.

You can reset the etherbase from the command line:

12geth --etherbase 1 --mine 2>> geth.log // 1 is index: second account by
creation order ORgeth --etherbase '0xa4d8e9cae4d04b093aac82e6cd355b6b963fb7ff'
--mine 2>> geth.log

You can also reset the etherbase from the console:

1miner.setEtherbase(eth.accounts[2])

Note that your etherbase does not have to be a local account address, as long as it exists.

There is an option to add extra data to your mined blocks (only 32 bytes). By convention, it is interpreted as a Unicode string, and you can set a short vanity tag.

You can check the hashrate with miner.hashrate, the result is expressed in H/s (hashing operations per second).

12> miner.hashrate712000

After you have successfully mined some blocks, you can check the ether balance in your etherbase account. Now assume that your etherbase is a local account:

12> eth.getBalance(eth.coinbase).toNumber();'34698870000000'

In order to spend the gas you earned on transactions, you need to unlock the account.

123> personal.unlockAccount(eth.coinbase)Passwordtrue

You can check which blocks were mined by a particular miner (address) with the following code snippet in the console:

Please note that it often happens that a block is found but it cannot be made into the canonical chain. This means that you include the mined blocks locally and the current state will show the mining rewards attributed to your account, but soon after, a better chain is found and we switch to a chain that does not include your block, thus not crediting any mining rewards. Therefore it is very likely that miners monitoring the coinbase balance will find that it has fluctuated quite a bit.