Bitcoin mining 2017
The most advanced bitcoin mining machine, one to two years to dig out a bitcoin, bitcoin mining is now too difficult. If you want to dig, you can dig ether currency. Now it is steadily appreciating every day. According to the current development trend, it will be able to recover its capital in about seven months, and then it will be profitable< br />
warm tips:
1. The above contents are for reference only, without any suggestions
2. Before investing, it is recommended that you first understand the risks existing in the project, and clearly understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
response time: February 9, 2021. Please refer to the official website of Ping An Bank for the latest business changes
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It's about 37 yuan
let me first introce the reward mechanism of bitcoin system
bitcoin can basically dig out a block every 10 minutes through system settings. The reward for each block is given to the miners who dig out the block. The miner who digs out the block is called the block miner. The block miner will record the legal transactions in the bitcoin network to the blockchain, so that the miner can receive the service charge for bookkeeping
there are two parts in the reward for the block Miner: one part is the reward given by the system, which is called coinbase reward (also known as system issuance reward), the other part is the reward for bookkeeping, which is called miner's fee. The coinbase reward started with 50 bitcoins. For every integral multiple of 210000 blocks, the coinbase reward will be halved. This is what we often hear about bitcoin mining reward halved in four years
at the present stage, the reward of coinbase is 12.5 bitcoins. At the present stage, the average transaction miner fee received by miners for digging out a block is about 0.1 bitcoin (not fixed), that is to say, the average reward received by miners for digging out a block is about 12.6 bitcoin
about 99% of miners' rewards come from the system's coinbase rewards. According to the bitcoin system, one block can be g out every 10 minutes on average. The number of new blocks that can be g out in one day is 144 (60 * 24 / 10 = 144). At present, the number of bitcoins that can be g out every day is 1800btc (144 * 12.5btc = 1800btc). With the miner's fee of about 0.1btc per block, the total reward for all miners in one day is about 1814.4btc
Bitcoin mining is a process that uses computer hardware to calculate the location of bitcoin and obtain it
mining is an incentive process to record data in the bitcoin system. In the bitcoin system, indivial users have the right to pack blocks after calculating a specific hash value by using CPU or GPU to hash
and in order to reward this user for packing blocks, the system will give a certain amount of bitcoin as reward. Because this process is very similar to "mining" in real life, most people call this process mining. In addition to bitcoin, other electronic virtual currencies can also be obtained through mining rewards, such as Ethereum, Monroe and so on
extended data:
mining risk:
1, currency security
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
2, system risk
system risk is very common in bitcoin, and the most common one is bifurcation. Bifurcation will lead to a drop in currency price and a sharp drop in mining income. However, many cases show that the forking will benefit the miners, and the forked competitive currency also needs the miners' computing power to complete the minting and trading process. In order to win more miners, the competitive currency will provide more block rewards and handling charges to attract miners. Risk makes miners
You can't dig in a day. It takes 2000 years
the global unified computing difficulty of bitcoin is 2621404453 (expected to change in two days). It takes more than 2000 years for a 2.5GHz CPU to work out a bitcoin
in order to make the graphics card fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
extended data:
bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system
bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as block reward to reward the person who gets the answer
when bitcoin was born in 2009, block rewards were 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25
when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million
Development:
1. Bitcoin (bitcoin) is a kind of network virtual currency, which can buy real-life goods. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals. In 2013, the U.S. government recognized the legal status of bitcoin, making the price of bitcoin soar. In China, on November 19, 2013, a bitcoin was equivalent to 6989 yuan
2. On January 7, 2014, Taobao announced that it would ban the sale of Internet virtual currencies such as bitcoin and lightcoin from January 14. West Virginia Democratic Senator Joe; On February 26, 2014, Joe Manchin issued an open letter to a number of regulatory authorities of the US federal government, hoping that relevant institutions would pay attention to the current situation of bitcoin encouraging illegal activities and disrupting the financial order, and demanded that actions be taken as soon as possible to completely ban the electronic currency. On January 11, 2017), the Shanghai headquarters of the people's Bank of China and the Shanghai Municipal Finance Office carried out on-site inspection of bitcoin China.
bitcoin will be released on the Internet regularly to mine. To put it bluntly, it is the process that people use computer hardware to calculate the location of bitcoin and obtain it
mining is definitely the first professional mining machine. Many new children's shoes will choose to mine with graphics card. However, mining with graphics card is just like doing a professional job with "magic oil", but the efficiency is certainly not high. To dig bitcoin, we should pay attention to the following points: first, computing power (i.e. mining speed), second, power consumption, and third, stable performance. Computing power, bitcoin mining is faster than problem-solving speed, so it is self-evident that speed is more important; Power consumption is directly related to efficiency, that is, the issue of cost expenditure; The stability of performance mainly depends on the stability of calculation force when the working frequency is constant. Just think about it, no one wants the miner to lose its computing power every so often, or even break down. After all, it's all money ~
the general computing power of the graphics card is a few gigabytes, while the professional miner chip is as high as several thousand gigabytes. Take bm1387, the chip with the lowest power consumption in the world, as an example, the S9's computing power is as high as 14T, the power consumption on the wall is only 1400W, and the rated computing power reaches 13.5 Th / s ± 1 J / GH + 12% (wall, AC / DC 93% efficiency, 25 ° Rated voltage: 11.6 ~ 13.0v, in addition, in the case of non independent power supply, three power calculation boards can be connected to different power supply respectively, but each power calculation board can not be connected to multiple power supply, and ensure that the power calculation board is finally powered on
among the mining machines, ant mining machine is my favorite. At the same time, based on the average investment cost of bitcoin in the early stage, ant S9 can basically recover the capital in about five months, and the income in the later stage is immeasurable.
according to the notice and announcement issued by the people's Bank of China and other departments, virtual currency is not issued by the monetary authority, does not have legal compensation and mandatory monetary attributes, is not a real currency, does not have the same legal status as currency, cannot and should not be used as currency in the market, and citizens' investment and transaction of virtual currency are not protected by law
warm tips: ① the above explanations are for reference only, without any suggestions. The relevant procts are issued and managed by the corresponding platform or company, and our bank does not undertake the responsibilities of investment, cashing and risk management of the procts
② there are risks in entering the market, so investment should be cautious. Before making any investment, you should make sure that you fully understand the nature of the investment and the risks involved in the proct. After a detailed understanding and careful evaluation of the proct, you can judge whether to participate in the transaction
response time: January 28, 2021. Please refer to the official website of Ping An Bank for the latest business changes
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1. I now have a 100 yuan personal name coin in my hand Bitcoin)
2.. Who cares about the official account? But you need to guess the number of the money in the comments Mining, random filling, numerical solution)
try your best to guess, and you get 100 yuan in full - personal mining
pay money to gather some people to guess together - mining field
gather people you don't know to guess together, and allocate the 100 yuan in proportion through the number of guesses -
the above is a simple example of analogy, of course, You followed and guessed the number of 100 yuan in my pocket, I promise you
so what's going on with bitcoin mining
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when Zhang San wants to transfer 1000 yuan to Li Si's B account through a account: ① Zhang San roars: attention, I use a account to transfer 1000 yuan to Li Si's B account. ② The villagers near Zhang San listened to Zhang San's voice and checked whether Zhang San's a account had enough balance. ③ After passing the inspection, the villagers write on their account books: account a transfers 1000 yuan to account B, and modify the balance: account a balance = 3000-1000 = 2000 yuan, account B balance = 2000 + 1000 = 3000 yuan. ④ The villagers near Zhang San told the villagers far away about the transfer, and passed it on until everyone knew about the transfer, so as to ensure the consistency of everyone's account books. Smart if you must have found out, in step 2, if Zhang San roars, and the villagers nearby pretend not to hear him, and do not check the account, then the system will stop working? In order to solve this problem, the village decided after discussion that whoever first confirmed Zhang San's voice would get 500 yuan. So everyone put up their ears and monitored every movement in the village. It's really a matter of grass and trees. Someone in the comment area asked, where did the 500 yuan come from? I would like to give a brief answer here. 1. On average, bitcoin generates a block every 10 minutes. The number of transactions that can be packaged in this block is limited. Let's count it as 800. However, absenteeism will not give you a package deal and broadcast for no reason, so you need to charge a handling fee. Moreover, because there are many people in the transaction, whose transaction to pack first also depends on the level of handling charges. So you can see that bitcoin is hot now, and the handling charges are going up. 2. We all know that the total number of bitcoin is 21 million, and the issuing mechanism is decreasing year by year. If absenteeism is the first one to successfully package this block and broadcast, and it is the longest chain, he will be rewarded. At present, there are only 12.5 bitcoins. It started with 50. It's decayed twice. Of course, there are small problems, such as why the longest chain is needed, how to determine the longest chain, and which chains will be abandoned? If you are interested, let's talk about it further. The above is the reward for absenteeism. Updated on December 8, 2017. In the world of bitcoin, one block is generated about every 10 minutes. All mining computers are trying to package the block and submit it, and the first person who successfully generates the block will get a bitcoin reward. Initially, bitcoin rewards of 50 bitcoins could be generated about every 10 minutes. But the payment is halved every four years, and now the bitcoin network can generate 25 bitcoins every 10 minutes. Well, then the story above tells that Zhang San's roar shocked the whole village, and everyone said that they were the first to hear Zhang San's voice. Who should I give the 500 yuan to? So the village discussed the new regulations, and needed evidence to prove that it was Zhang San's voice. Zhang San's cry contains specific sound data, which will be given to whoever breaks it first. In the bitcoin world, this is a new concept, consensus mechanism. Bitcoin decides the bookkeeping right through the consensus mechanism of workload proof. Generally speaking, the one who proves his workload is the biggest is responsible for bookkeeping. The amount of work is reflected by calculating the hash value of the bitcoin block header that meets a certain standard. The block header usually contains the hash value of the previous block, Merkle root, timestamp, difficulty target, and a filled random value. The node that tries to fight for the bookkeeping right is called mining node. The mining process is to find a random value that can fill the block head of this area, so that the hash value of the block head can meet a certain standard
Author: leaf
link: https://www.hu.com/question/20792042/answer/261310341