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.

Foreign media reported that China has become the world’s largest Bitcoin mining farm. Abundant energy, low electricity costs and the right technology make the Asian giant fertile ground for Bitcoin "mining" activity. Data from Bitcoin trading institutions show that about 70% of the world’s Bitcoins are produced in China.

 **So, what exactly is Bitcoin mining all about?**

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First of all, you need to understand Hash. It is generally translated as "hash", and some are directly transliterated as "hash". It is to convert input of any length (as shown below) into a fixed length (can is the output of a number with many digits), and the output is the hash value. This transformation is a compressive mapping, that is, the space of hash values is usually much smaller than the space of the input. Simply put, it is a function that compresses a message of any length into a message digest of a fixed length.

What the mining machine runs and calculates non-stop day and night is to execute the Hash algorithm, that is, given a string and a random number (note that a random number is needed to control the generation of different results for the same string). Hash value), calculate their merged Hash value.

Oh, I see, it looks very simple. But why is it so time-consuming, energy-intensive, and human-intensive?

Because this hash value is not an ordinary hash value. It must meet certain conditions and is somewhat difficult to calculate. It requires a lot of money, blood and sweat to calculate it. It requires that the first few digits of the Hash value must be zero. How many digits are zero determines the difficulty and cost of brute force calculation.

There is no way, Hash is a one-way function, everyone can only rely on luck to get the Hash value of a certain string that meets the conditions. At this time, the mining machine must try to use different random numbers to calculate the hash value after merging with the string. It will not be considered successful until it finds a hash value that meets the conditions of several zeros in front.

After the mining machine finds (it should be by luck) the random number and the corresponding Hash value, and is recognized by the system, it can get a little bit of Bitcoin as reward from the entire Bitcoin system. This remuneration is the motivation for mining, the way to make money, and the only source through which the Bitcoin system can issue new coins.

Now, do you understand?

Mining means doing a boring and monotonous thing every moment, calculating Hash values. Whoever is lucky enough to calculate it first will earn some Bitcoins.