Early bitcoin digs holes

2. Bitcoin mining is a process of using computer hardware to do mathematical calculation for bitcoin network to confirm transactions and improve security. As a reward for their service, miners can get the Commission included in the transaction they confirm, as well as the newly created bitcoin. Mining is a professional and competitive market. The bonus is divided according to the amount of calculation. Not all bitcoin users mine, and it's not easy to make money from mining

the popular point is to use the computing power of your computer to solve mathematical problems, and then give you a certain amount of bitcoin in return
bitcoin mining has gone through three stages: CPU, GPU and ASIC. At present, bitcoin mining needs professional ASIC mining machine. At present, Avalon, butterfly lab and roasted cat are the most famous mining machine manufacturers in the market, but butterfly lab in the United States likes to evade tickets, while roasted cat only sells mining machines with small computing power. Avalon has proced the world's first ASIC miner, and Avalon has delivered the first three generation chip orders. Avalon3 is about to enter the market

and now you need to join a mining pool, because the chance of digging bitcoin alone is very small, I hope you can.

3. Bitcoin, as a kind of network virtual currency, is very popular. Many people will "dig" bitcoin. Today, let's introce the mining tutorial of bitcoin
Step 1: prepare mining machines and pools
if you want to dig bitcoin, you must prepare professional equipment. At present, there are many professional mining machines on the market, and the pool is also essential. When you choose a pool, you should also compare the output and income gap of each pool, and then choose the most suitable one
Step 2: register and set the mine account
after the mine is ready, register the mine account and set a common email. When setting the mine account, each CPU or GPU needs to set a mine account
Step 3: download the bitcoin miner
after you register and set up your account, you need to download the bitcoin miner. When downloading the miner, be sure to choose the miner that can make your CPU and graphics card play the most function. After downloading, set the server, user name, password, device and so on
Step 4: Mining
after setting up the miner, click the "start mining" button, the miner will enter the state of full speed operation, and the miner will start mining automatically.

4.

Bitcoin is actually a virtual currency. When bitcoin first appeared, if you want to get bitcoin, you have to get bitcoin through mining. Therefore, bitcoin mining appeared. But bitcoin mining is more and more difficult, so it is very difficult to get bitcoin now

so now many people use Haru miner digs Ethereum, Monroe and other virtual coins. Most importantly, BTC can be directly equivalent in the end

5.

When bitcoin nodes connect with each other, they will get transactions they don't have from each other. But because bitcoin has accumulated a large number of transactions for a long time, it is very difficult for two nodes to compare which transactions you are missing / which transactions I am missing one by one

to solve this problem, Nakamoto Tsung invented the important technology of block chain. Nodes use blocks to synchronize transactions, which ensures the data consistency of all nodes, and ensures the uniqueness of the blockchain by competing for block packing rights (that is, mining)

① a block and blockchain
a packet formed by a transaction over a period of time is called a block. On average, bitcoin generates a block every 10 minutes, and each block is linked to the previous block to form a blockchain

② the transaction data is synchronized with the block as a unit
the block is numbered from 1, so after node a connects with node B, it is convenient to synchronize the transaction data as long as the block number height of both parties is checked. For example, if node A's own block height is 100 and node B's block height is 110, all it needs to do is request B to synchronize the 10 blocks 101-110<

③ reward for packed blocks
in order to ensure that there are nodes to pack bitcoin transactions, bitcoin rules stipulate that nodes of packed transactions will receive bitcoin as reward
A. part of the package reward comes from the transaction fee paid by the transaction creator (100-1000 transaction fee per KB)
B. the other part comes from the initial distribution of 21 million bitcoins. At the beginning, the reward is 50 bitcoins for each block. After that, the reward will be halved for every 210000 blocks (about four years). Until about 2140, the reward for each block is less than 1, and the total reward for each block is 21 million bitcoins, This is the source of the total amount of 21 million bitcoins (2099999.97690000 to be exact)
after 2140, the package reward will only come from the transaction fee paid by the transaction creator<

④ competition for block packing right
node packing transaction only needs to consume very low-cost network and computing resources. The existence of packing reward (at present, the packing reward for each block is 25 bitcoin, about 40000 yuan), makes a large number of nodes want to pack transactions. In order to ensure the uniqueness of the blockchain, bitcoin rules stipulate that nodes use a method similar to "coin tossing" to compete for the right of transaction packaging. Nodes constantly toss coins. Whoever first throws the results that meet the rules will get the right to pack the transaction in this block, as well as the package reward of this block

6. The people's Bank of China said that bitcoin could not be used as currency clearing. Some bitcoin websites were stolen and began to avalanche

7. Hello, questioner:
in the very early days, when the computing power of bitcoin was very low, the computer could also carry out a lot of calculations according to the algorithm to "mine" bitcoin

when users "mine" bitcoin, they need to search for 64 bit numbers by computer, and then compete with other gold miners by repeatedly solving puzzles to provide the required numbers for the bitcoin network. If the user's computer successfully creates a group of numbers, they will get the bitcoin awarded by the block. However, e to the rising value of bitcoin, the number of users of bitcoin mining is very large. There are millions of professional mining machines mining at the same time, and the output of bitcoin is very limited every 10 minutes. As a result, tens of millions of people scramble for a block. Therefore, if you use personal computers to mine alone, you may not be able to grab a block in a whole year, People came up with a method of group mining, so the mining pool was born. There are a lot of users who play after mining
I hope you will adopt it.

8. The most fundamental way of children's learning should be activity, which is the bridge between subject and object and the direct source of cognitive development. According to the psychological characteristics, letting students explore knowledge independently in the coordination of hands, mouth and brain can develop students' cognitive structure. This requires us to change the classroom teaching mode in teaching, implement open teaching, and let students study independently. I always encourage students to think freely, rationally, boldly and even fantastically in class. For example, when learning "the destruction of the Old Summer Palace", the multimedia courseware was used to create the situation, and the fragments of the movie "burning the Old Summer Palace" were shown to the students. Then they thought of gunpowder. They proposed: China was the first to invent gunpowder, why not make artillery and fireguns to deal with the British and French allied forces? In this way, the students' thinking suddenly goes beyond the books. Second, let the students "see" as much as possible, and cultivate the students' discovery ability. "See" is to let the students watch, observe, give enough time to observe, obtain "discovery" through "see", and actively learn knowledge on this basis. For example, when learning the scenery of Yuanmingyuan, Cai is used to show the scenery pictures of Yuanmingyuan. The students can observe and appreciate them heartily, and then according to their own observation and discovery, give the pictures a name with the same beauty as the pictures - title. Then compare the original name of the picture with the name of your own question to see who is good and why. For example, according to the architectural characteristics of "flower array", it is like a blooming lotus and is named "stone flower jade Pavilion". In this way, students explore and creatively learn knowledge on the basis of full "seeing". Third, let the students "draw" as much as possible to cultivate their thinking ability. Students can draw and describe the information they have obtained from different perspectives and levels of thinking by seeing, experiencing and imagining with their own eyes, and then express it with language, so that the students can better move their hands and brains in class, and overcome the problem of using only ears to listen, listening and thinking in class It is not enough to operate without small hands. In the class of painting style of the first grade, the word "painting" was fully reflected in the design. Both the teacher and the students expressed certain thinking results in the way of painting. The teacher used "simple strokes" to write on the blackboard the things in the wind mentioned in the book. In the class, the students were also designed to "draw" the "wind" on a beautiful landscape painting to see whose way they thought more, And tell us why we draw the wind in this way. In this way, the consciousness and interest of students' active exploration are aroused, and the ability of students' brain and hands-on is cultivated. In the process of exploring how to draw, students will understand that the wind can not be drawn directly, only through other things in the wind to express this point, which is much better than the effect of the teacher. Fourth, let the students "speak" as much as possible, exercise their eloquence, and express the rationality of their thinking through language, so that they can understand how the students think and how to achieve the rationality of their thinking. The teacher creates a free space for students to speak freely, and truly achieves a harmonious and democratic classroom teaching atmosphere, giving students a blue sky of independent exploration. For example, the students' oral expression ability, thinking ability and the ability to organize language quickly can be trained by means of "naming, speaking on stage, group speaking, question and answer type communication" and "adding, summarizing, modifying, correcting and synthesizing". Fifthly, let the students "do" as much as possible to cultivate their practical ability. The process of doing it by themselves actually includes the process of thinking and exploration. Here we should design and provide the time and necessary material conditions for the students to do it. For example, when reviewing idioms at the end of the term, we should change the way that the teacher found out the idioms in a book and let the students , read and remember them. Instead, we should trust the students and let the students read the text by themselves. We should also ask the students to compare and compare. Who can find all the idioms in a book. In this way, students fully reflect their autonomy and enthusiasm in the process of finding out for themselves. Sixthly, let the students accept the knowledge critically and creatively, show the thinking process, create a relaxed environment, require the students to adhere to the truth, follow the objective laws of things, dare to doubt the predecessors, not only books, not only on. For example, when learning the lesson "Zhan Tianyou", the students admired Zhan Tianyou, and at the same time, they also talked about their own design and ideas for his "herringbone railway design", "middle shaft sinking method", "relative shaft sinking method", and carried out reasonable imagination and scientific thinking. For another example, when studying snakes and crops, the students boldly said, "the reason why the crops can't get a good harvest is not only because they were drowned by the flood, but also because the sea water is salty, which destroys the soil and makes the soil unsuitable for the growth of crops. But after a few years, the rain from the sky diluted the soil that had been destroyed by salt water before, so the crops were harvested again, not only because of snakes. Students use their own knowledge and experience for reasonable analysis, dare to doubt, dare to accept knowledge creatively, and fully show the students' reasonable thinking process. 7. To teach students the "method" and "place" of "fishing", it is often said that "teaching people how to fish is beneficial for life". In this knowledge-based economy era with knowledge explosion, today's knowledge will not be enough tomorrow. We should not only teach students the learning method of "how to fish", but also tell students the place of "fishing", Tell students where to find, where to learn, where to find what they need, how to collect some information and where to get information, that is, tell students the ways and channels to collect information and obtain information. For example, through newspaper clippings, book excerpts, TV recordings, radio recordings, CDs, disks, online downloads, field surveys, their own life experience, special interviews and so on. How to sort out and deal with the collected materials to make them useful to you? If you know "there will be rain tomorrow" from "TV", how will you deal with this information? You'll take your umbrella tomorrow. What do you think if you read in the newspaper that a middle school student committed suicide by jumping off a building because of his poor exam results? What kind of inspiration will your psychology proce? If you are also a person with poor enrance and can't stand setbacks, how will you deal with this situation? Should I adjust my mind and treat the exam correctly? In this way, it can help students master the ways of collecting information, acquiring knowledge and processing information. As long as we change the concept of ecation, leave time, space and opportunity for students, let them think, see, speak, draw, do and doubt boldly, and teach them not only learning methods but also ways to acquire knowledge, we can cultivate students' ability and consciousness of independent inquiry.

9. Go to the library.

I wish you progress in your study! Hope to adopt Hee hee

10. Diamonds are better to dig, as long as you dig down about 16 squares vertically, you may find diamonds. But the gold ore seems to be distributed irregularly, and there are few diamonds, so we can only rely on luck