Virtual currency digs for gold

1.

1、 mining principle

at the beginning, we could dig bitcoin with the computer CPU. The founder of bitcoin, Nakamoto Tsung, g out the world's first creation block with his computer CPU. However, the era of CPU mining has long passed, and now bitcoin mining is the era of ASIC mining and large-scale cluster mining

looking back on the mining history, bitcoin mining has gone through the following five times: CPU mining → GPU mining → FPGA mining → ASIC mining → large-scale cluster mining, The mining speed changes are as follows:

CPU (20mhash / s) → GPU (400mhash / s) → FPGA (25ghash / s) → ASIC (3.5tash / s) → large scale cluster mining (3.5tash / s * x)

mining speed, which is called computing power in professional terms, that is, the ability of computer to generate hash collisions per second. In other words, how many hash collisions can our miner do per second is the calculation force. Computing power is the ability to dig bitcoin. The higher the computing power, the more bitcoin you dig, the higher the return

in the world of bitcoin, a data block is recorded about every 10 minutes. All mining computers are trying to package the data block and submit it, and the person who successfully generates the data 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

to successfully generate data blocks, miners need to find the effective hash value. To get the correct hash value, there is no shortcut. You can only guess. The process of guessing is the process of computer random hash collision. If you guess correctly, you will get bitcoin

Mining method: from a miner to a large-scale mine, you need to prepare a miner, a computer that can connect to the Internet, an AUC, a raspberry pie, power supply and all kinds of connecting lines, etc. The connection order of various devices is network cable - & gt; Raspberry pie - & gt; Microusb cable - & gt; AUC-> 4Pin cable - & gt; Mining machine and power supply

< EM > Figure 3: Mine Map (scale of tens of thousands of mining machines) < / EM >

nowadays, the profit space of small and medium-sized absenteeism who take one mining machine home or deploy a small family workshop (dozens of mining machines) is very limited, and the mining instry is graally concentrating on enterprises and teams with low-cost power resources and professional deployment ability

there are many factors that affect the mining revenue, such as the performance and power consumption of mining machinery, the computing power and difficulty of the whole network, the deployment and operation and maintenance capacity of the mine, the availability of low-cost electricity resources, and the currency price and policy guidance, etc. At present, excellent mining enterprises have the ability of chip research and development, a lot of computing power, professional mine deployment and operation experience, etc. in the future, resources and computing power will be more and more concentrated in these mining enterprises

2. Mine pool

in addition to the above equipment, you also need a necessary tool - mine pool. The function of the mine pool is to gather a large amount of mineral computing power, increase your probability of getting bitcoin, and at the same time, distribute your future bitcoin income to your account in advance

the simple explanation is as follows: now the bitcoin network generates a block every 10 minutes, which contains 25 bitcoins. Suppose there are 1W people in the world participating in mining, then in these 10 minutes, only one lucky person has taken these 25 bitcoins, and the others have nothing. The principle of the mine pool is that everyone mines in teams and distributes according to the agreed distribution method, so that the income of the miners' bitcoin tends to be stable and the risks of the miners are reced. Let's take the most common PPS allocation method as an example. Suppose that your computing power is 10t, and the computing power of the whole mine pool is 100t. Your computing power accounts for 1 / 10 of the total computing power of the mine pool. Suppose that the mine pool can generate 10 bitcoins a day, then you can get 1 bitcoin a day

3. Cloud computing power

in reality, the supply of mining machines often exceeds the demand, and at the same time, the delivery of mining machines needs a long waiting period. Miner installation, commissioning, maintenance and other processes are very complex, which requires a lot of energy. Miners have to enre the noise and heat of miner. For miners, the biggest cost is not these, but the high electricity charges consumed by mining. The profit space of small and medium-sized miners is getting smaller and smaller, even negative

Mining income and risk mining income can be calculated by the following formula:

Mining income = generated bitcoin * currency price - mining machinery cost - electricity fee - custody fee

if you are just a small miner, generally you only need to dect mining machinery cost and electricity fee

Mining risks are as follows:

< UL >

at present, the number of bitcoin is less than 4.5 million. If we do not issue additional bitcoin, the price of bitcoin will fluctuate, and the price callback will lead to the extension of the payback cycle

mining difficulty improvement at present, our machines can meet the market demand

the risk of power outage

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< EM >
< / EM >

2. Mining is definitely the first professional mining machine. Many new children's shoes will choose to use the graphics card to mine, but the graphics card mining is just like doing a professional job with the "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.

3. Check the price of LBTC today: 23 yuan. So, what can I do with 23 yuan? What am I going to do

in fact, we can do a lot of fun or valuable things

you can buy a hamburger set meal and an iced coke at McDonald's KFC

you can buy a discount ticket at the cinema to see star wars or transformers

you can come to the Internet bar or game hall to play games. On our side, you can play for an afternoon (nobody cares)

you can buy a bunch of roses or a mouse for the person you like to activate your feelings

of course, a 23 yuan LBTC can also be used to do more meaningful things

if there is a poor child in remote Helan Mountain of Ningxia or Laos who can't afford to pay the tuition fee of tens of yuan, as long as he has a smart phone, downloads the LBTC wallet and registers the LBTC address, other LBTC holders in the world can donate money for him to help her go to school. Lbtc3 seconds to the account, up to 1400 TPS per second, so that children can quickly get tuition

many Filipino maids go to Hong Kong and Japan to work. They live frugally every month and save a meager income. However, the handling charge of cross-border remittance is often as high as 5% - 10%, which makes them very difficult. LBTC can help them achieve this goal. LBTC remittance fee is almost zero, and there is no amount limit

until LBTC, like Alipay and WeChat, is accepted by businessmen all over the world, it is good to make hotel, buy breakfast, rent a car and travel abroad with LBTC. LBTC will make our life extremely convenient.

4. Yes, and the flow rate is also OK

5. If there are no miners mining, the total amount of tokens will not increase, and there is no impact on the tokens already in circulation. As long as the currency is still in normal circulation, theoretically, the value of a single token will increase. Many currencies originally have a total amount limit, not unlimited output, which is the basis to ensure that it will not have inflation problems. For example, the upper limit of bitcoin is 21 million. When all 21 million bitcoins are g out one day, the miners will have nothing to dig, won't they

6. Ask the bank where your card is. There seems to be a problem here. You can't see the form clearly, but if you have less money, you have to ask the bank to keep the relevant bills

7. Even if you dig for yourself, you can't pay the electricity bill. The price of mineral machine is high and the risk is great. If you want bitcoin, you can go to the trading platform to buy it

8. IBM and bitcoin are almost virtual currencies. If they are valuable, they are worthless. It is not recommended to invest in this kind of virtual currency, so as not to be cheated by criminals
it is suggested to invest in the spot form of yellow / gold / crude oil. Yellow / gold has always maintained its value, and crude oil as war savings can not go anywhere. Recently, the market has fluctuated a lot. It's still easy to make money.

9. Bitcoin, is it that easy to dig. The power consumption and equipment cost are almost equal to 1 bitcoin.