Small coin mine

1.

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

2.

IPFs is a file transfer protocol similar to http. If IPFs wants to run, it needs many computers (storage devices) in the network as nodes. In a broad sense, all participating computers can be called IPFs mining machines

in order to attract more users to join the IPFs network and contribute to the network, an encryption currency named filecoin is designed, which is distributed to the participants (nodes) as a reward according to the amount of contributed storage space and bandwidth. In a narrow sense, the computer specially designed for the purpose of obtaining the filecoin reward is called IPFs mining machine

because IPFs network needs storage space and network bandwidth, in order to obtain the highest profit ratio, IPFs mining machine usually strengthens the storage space and reces the power consumption of the whole machine. For example, more than 10 high-capacity hard disks are equipped, Gigabit or higher speed network cards are equipped, and ultra-low power architecture processors are used

of course, the mining machine provides storage services, so it can obtain revenue. The size of revenue is related to the configuration of mining machinery and the number of IPFs mining machinery

extended data

the reasons why it is not recommended to invest in IPFs are as follows:

1. IPFs technology is too early to be commercialized

IPFs now takes up a lot of bandwidth. IPNs is very slow at present, which is an obvious technical defect. It will be very difficult to realize dynamic web pages only through IPFs

There is no reasonable economic model, even if the token economy is added, it is difficult to realize the long-term natural ecological value

as a very cumbersome decentralized protocol, it is difficult for users to share files autonomously and spontaneously. In addition, even if users share files into the protocol, the files will be completely open and users cannot delete files effectively, so the security of valid files is threatened

the solution is to introce encryption and blockchain incentive mechanism. At the same time, it solves the security and storage power problems of files. However, as mentioned before, any node with workload proof under blockchain incentive mechanism will face an economic problem of continuous power on state

It is difficult to establish an ecological network with IPFs as the core under the influence of technical problems

The ecological application space of

IPFs is quite limited, and the project interaction speed realized by IPFs protocol is also very slow. Of course, it has a direct relationship with the number of nodes and the distance of calling

3. Zecx has not been listed on any exchange or any authoritative digital currency information platform, so it is likely to be MLM currency.

4. AA mine pool is a digital currency mining service platform. At present, it provides users with eight digital currency mining services, including bitcoin diamond BCD, Ethereum eth, bitcoin infinite BCX, dascoin dash, green coin VTC, mone (Japan) Mona, raven RVN and small zero XZC. It uses blockchain technology to provide management and settlement services for digital currency investment. In the future, it will enter the blockchain public chain and cryptocurrency market
starting from the current market situation and mine owner's psychology, AA mine pool adheres to the market-oriented concept, pays more attention to humanistic service and professional technology, and creates a new, simple, safe and stable mining service platform
technical advantages of AA ore pool:
purer mining mode: adopting algebraic average algorithm, the original PPLNs + distribution mode is better than the traditional PPLNs / PPS mode, and the income can be increased by about 20%
core driver upgrade: make blocks output faster, allocate tasks at millisecond level, adjust dynamic difficulty, and output blocks efficiently
Security and stability: distributed main network node servers are distributed in 24 cities around the world, with strong anti DDoS capability, ensuring efficient and stable revenue growth
ultimate experience: more optimized big data infrastructure, timely and rapid response, simple mining steps, easy to understand, easy mining, and enjoy the benefits.

5. Friends who are new to the currency circle are dazzled to see all kinds of digital currencies. What are the origins and characteristics of these cryptocurrencies? Here is a brief introction to some mainstream cryptocurrencies< Bitcoin is the earliest cryptocurrency. In 2008, an Internet geek named Nakamoto Tsung published a paper called bitcoin: a peer-to-peer e-cash system. In 2009, the first creation block was g up by Nakamoto Tsung and has been developing ever since. The original block size of bitcoin was only 1m, and the congestion problem was getting more and more serious. As a result, the block expansion was put on the agenda. The core development group advocated the use of isolation witness and lightning network to realize the expansion, while the big block group advocated the direct expansion of the block. At last, on August 1, 2017, bitcoin cash (BCH) forked from bitcoin (BTC) and expanded its capacity by expanding the block. After this split, bitgold, bitdiamond, super bitcoin, bitgod and many other split coins have sprung up. Later, BCH itself encountered a bifurcation. The Australian CSW, who calls himself Nakamoto Tsung, has to continue to expand the block and lock the underlying protocol of bitcoin. He claims to make a bitcoin that meets Nakamoto Tsung's vision. This time, the bifurcation coin is called BSV

apart from BCH and BSV, most of the other bifurcated currencies have declined. BTC, BCH and BSV represent the exploration of three different directions respectively. BTC is the most conservative and cautious, BSV is the most radical, and BCH is relatively mild and graal. At present, BTC enjoys the name of bitcoin in fact and has the largest market value< br />
< At the end of 2013, vitalik buterin (V God), a gifted programmer born in 1994, published a white paper on Ethereum, proposing the idea of adding various smart contracts to cryptocurrency, which can be used in social networking, trading, games and other fields. The market value of Ethereum has soared all the way, and it will soon be second only to bitcoin, Ethereum with smart contracts is also known as blockchain 2.0

in 2016, Ethereum encountered a serious hacker coin theft incident (DAO), and God V decided to delete the coin theft record by using rollback method. However, some people who insisted that the blockchain should not be tampered with opposed rollback, so Ethereum also split. Unlike bitcoin, the original Ethereum chain has become a minority, known as the Ethereum classic (etc), and the new chain that has been rolled back has become a majority, the de facto Ethereum (ETH)

stable currency system

stable currency is generally anchored legal currency, which can be used to exchange legal currency 1:1 to the issuer. The currency value is relatively stable, but sometimes there will be a small amount of premium in transactions, which is widely used in cryptocurrency transactions. Now the most common stable currency is the usdt issued by tether company, 1 usdt = 1 dollar. Stable currency is generally issued on other cryptocurrency networks, such as bitcoin Omni protocol, Ethereum erc20 protocol, etc< br />


in anonymous currency

on bitcoin, every transaction is clear and searchable, although we don't know who the person behind the address is. Some people think that the privacy of bitcoin is not enough, so some anonymous coins, such as XmR, dash and zcash, which can cover up user information, have emerged. Monroe coin uses ring signature technology, dasey coin adopts mixed coin technology, and big zero coin uses zero knowledge proof, which can play an anonymous effect in different degrees

platform currency system

some digital currency trading platforms often release their own platform currency, and there are certain discounts for trading with platform currency, such as okb of okex, HT of fire currency, BNB of coin security, etc<

some other mainstream currencies

lightcoin (LTC) has copied the code of bitcoin, replaced the consensus algorithm, and shortened the block out time. When bitcoin wants to upgrade, it often does experiments on bitcoin first. Lightcoin is known as "bitcoin, lightsilver"

XRP is currently the third largest currency in market value. It is an Internet transaction protocol, allowing users to transfer money around the world quickly and cheaply

grapefruit coin (EOS), known as blockchain 3.0 and Ethereum upgrade, attempts to introce more functions and application expansion on it

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"bitkangaroo" is the first digital currency financial service platform in the world that allocates theoretical revenue from its own mines and machines without power failure. The platform is mainly based on cloud computing procts, and the theoretical revenue is allocated by "1tash" of Wanyou computing power's professional mine, a strategic partner, on a regular basis every day, integrating high-yield, security, liquidity, transparency and professionalism

High Yield: the platform aims at "increasing users' assets", and customers can choose a variety of derivatives to prevent systemic risks

Security: the team stores the standby digital assets in the cold multi signature wallet, and in case of any accident, the reserve fund will be used to distribute revenue to customers

Liquidity: the platform allocates income every day, and can withdraw as soon as it reaches the minimum currency withdrawal standard

transparency: mine data and mine logs are open and transparent, and users can monitor the actual computing power of the mine at any time through the data center monitoring system

Professional: the mine is operated and managed by professional personnel who have been engaged in deep mining for many years. Each unit is isolated by professional network interruption to prevent virus invasion. Multiple standby networks are used in the computer room to eliminate non systematic risks in an all-round way

6. In essence, bitcoin is just a piece of computer software. For most people, it's just a pile of code that they can't understand. It's almost impossible to see its value
the most familiar and easy to understand is Bill Gates and his Microsoft Windows operating system. Windows has entered into thousands of households and instries. People have improved proctivity and created great value through this computer program. As a result, Microsoft even once became the company with the highest market value in the world
What about bitcoin, also a software with high "value"“ In fact, many people want to know what kind of value bitcoin brings to people and things, thus supporting the consensus on bitcoin and steadily boosting its market value to more than 1 trillion< Miners and other participants in mining ecology
to put it simply, bitcoin mining machine is a machine that keeps making profits for miners. It can lay eggs like a chicken and proce value, and even go to the road of ten billion rich. This is the value of bitcoin for miners, mining airport operators, mining pools (service providers) and other people who participate in the upstream and downstream of mining ecology. Miners are the most important participants for bitcoin, and for miners, the miner that can proce bitcoin is a "hen" that can lay golden eggs. Although the journey of mining is not as simple as expected, and it's really a bit like opening a "chicken farm", which needs to provide all kinds of suitable environment, maintenance and "food" (energy) transportation to successfully proce "golden eggs" for profit, the miners are attracted by the benefit distribution mechanism of bitcoin, and new miners are constantly joining in

2. User
the full name of bitcoin system is a peer-to-peer e-cash system, so for users, it can be used to initiate transfer transactions. So why use it to transfer money? To put it bluntly, it means saving time, effort and money. Bitcoin does not need to transit through banks, third-party payment companies and so on to reach the other party's account directly, which eliminates the processing time, operation manpower and fees of third-party institutions. The fees collected by banks and other financial institutions through financial services can show how huge the fees are. In fact, many people don't understand the concept of the third-party guarantee agency very well. Most of the time, we transfer money for free, because in the credit society, small amount transfer is completed through the credit line between different financial institutions, which is not a real transfer

3. Savers and speculators
because bitcoin has value in use, and has many high-quality characteristics, especially like gold, and some of its characteristics are better than gold. It also has the function of "partial" risk aversion and value saving like gold, so it is graally regarded as gold, an international hard currency, and began to be hoarded by many people

4. People in poor and backward or "turbulent" areas
e to the low transfer cost and short time required by bitcoin. In many poor and backward countries, there is no need to build expensive network infrastructure to transfer money through encrypted network. Bitcoin's infrastructure is built by miners all over the world, which does not need the burden of poor countries' governments. There is no intermediate cost for payment and payment of salaries, which can save a lot of money< There are many such corners in the world, which are remote but rich in mineral resources or natural resources such as water conservancy and wind power. For example, there are many coal mines in some areas, but e to the high transportation cost, they can not be transported out. At the same time, e to the lack of people, the power generated by thermal power, hydropower stations and wind farms built in these areas is very surplus, and the economy of these areas is often relatively backward. At this time, they need and welcome miners to settle in. Miners not only bring a lot of jobs, but also convert the local surplus energy into power resources, and then generate a lot of income through bitcoin mining. This is actually equivalent to storing the energy value that might have been surplus and wasted through bitcoin network, and then paying the local government and people through electricity charges, Drive the local economy<

the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system.

7. Zcash, which is called zero coin in Chinese, is known as the most anonymous digital currency in the world. Bitcoin was once in the limelight, and its price was second kill. But then all the way down, the concept stock is no longer a myth, it still needs time to accumulate. Now, the price has fallen to about 300 yuan
there are platforms supporting zero currency trading in China, such as cloud currency, bitcoin, and foreign P network
however, this kind of digital currency still needs careful investment, and the risk is too high, which is different from the fixed income token launched by European crowdfunding platform.

8. f'( x) If = 3x ^ 2-A
is an increasing function on R, then f & # 39 x)>= The results show that 0% is true
and F & # 39 x) The minimum value of F is F & # 39 0) = - a
so there is - A & gt= 0
get a

9. Business history of Xiaoyan Hotel

the hotel has been in operation for one and a half years

the small shop covers an area of about 20 square meters, and it is a large retail business before picking up people. It has a business history of 10 years, and the profit is definitely profit, just how much. At that time, the daily turnover in April was more than 500, and it was said that it could sometimes exceed 2000 in the summer peak season

now that we take over, no matter what other people used to look like, we have to operate according to our own thinking

as for tobacco, it is a state monopoly. We can only operate within a reasonable range of 10%. In the market of the same quality and price, the competition of tobacco and wine shops has become white hot. Its own profit margin also determines that there is no differentiated marketing mode in this instry

generally speaking, large stores mainly sell high-end cigarettes for gift givers, while small stores mostly sell daily rations for smokers for nearby residents, mainly at the middle and low end. Neighbors are consumers<

nowadays, most hotels only sell real cigarettes, but there are not many shops selling fake cigarettes. At least according to the geographical location of our shop, we can't sell fake cigarettes. Although it's along the street, the business of real customers accounts for 70%, and the number of running people accounts for 30%

in the case of real tobacco, there are more than 20 tobacco operators with certificates in a 2 km street. If you want to operate well, you must make your own characteristics

nowadays, what consumers fear most is to buy fake cigarettes. Even if they buy real cigarettes sometimes, because the stores are relatively small, they suspect that they are fake cigarettes or unsalable cigarettes, and they can't smell when they smoke them

so I decided to work hard on the anti-counterfeiting of spare boxes first. I went to the advertising agency to make 100000 laser one-time anti-counterfeiting stickers, and the price was 1.71. There was almost no cost. In the anti-counterfeiting, there were store names and anti-counterfeiting telephone numbers of tobacco companies, so that customers could compare their prices. It's the only one doing anti-counterfeiting in this street. It's spread from one store to another. Slowly, we all know that this store sells real cigarettes. Slowly, its business has improved a little

the tobacco cabinet was originally placed outside. As the weather turned hot, I felt that it had some influence on the taste of tobacco, so I decided to move the counter inside to avoid direct sunlight. In the back room, there is also a small cigarette pant, which can avoid direct sunlight and st pollution, and keep the flavor of tobacco to the maximum extent. Besides, it does not put all the cigarettes outside, and also saves some special cigarette pouring people staring at them every day. Save a lot of trouble, after all, 20 square meters of stores are mainly retail, the whole wholesale is very small. Tobacco is more attractive when it is put outside

tobacco control strictly, and 2 weeks after the sale, the sales can be generally sold but slow smoke is sold in 2 months. At this time, the destructed opium is sold and the gift is sold. All the new cigarettes are trying to get in. I think it's cost-effective to introce them to customers. I get to know a group of old customers who like to smoke new cigarettes. Slowly, as long as the new cigarettes are good or not, they are sold out as soon as they are on the market

sometimes I talk about cigarette labels with customers. I've collected hundreds of them myself. I graally become friends with customers and degenerate together

we have been in business for several months. Now we have the number of what cigarettes we can sell in the store and how many cigarettes we can sell each month. We are starting to buy boxes of cigarettes

if you want the customer to remember you, you have to remember the customer first. The regular customers almost don't ask for any cigarettes when they enter the store. As long as they enter the store, I will directly put the cigarettes they want to buy on the counter and leave immediately after paying the bill, which directly shortens the transaction time and greatly increases the direct feelings with the regular customers

of course, most of the tobacco now use rationing system. We have about 5:5 for local and foreign tobacco. Those who like to smoke foreign brands still need to cultivate them to continue smoking. I can't get so many local tobacco

for those who can buy cigarettes from other places occasionally, local ones can do without any cigarettes from other places, so I often run out of stock. Even if there are dozens of them in the cabinet, they will not be taken out

customers would think you didn't buy the cigarettes back, but there was no smoking at all. The local cigarettes put in a cabinet and the destructed opium was sold. After four months' operation, the local cigarette disappeared on the rack after I had found out the habit of customers' general smoking.

to move customers with details, small stores usually charge a lot of broken coins. I always deposit money in the bank and never give it to customers. Some customers like to use new coins, so they keep them for her and tell her to keep them for her

in the morning and evening when the supermarket is not open, strangers will not sell local cigarettes. There is no way. The task of tobacco must be completed. If you don't follow him, the business must be finished. A small part of the business is running away, but most of them are fine, and many destructed opium cigarettes are sold ring this period. Especially for those who are drunk at night, when they are drinking like that, what else do they need for cigarettes? It's sure that the difference between prices will be bigger

in fact, the price difference of many cigarettes is 20%. Selling these cigarettes is the profit growth point of cigarette shops, such as Yunyan (10 yuan) and chufeng (10 yuan). 5mg Zhongnanhai, jiaozi 15's purple Nanjing, 14's Liqun, 20 yuan's golden Nanjing, Longfeng, Changshan, etc. I will not elaborate on how to sell them. Let's see for ourselves, there will be a way in the article. Anyway, I have a full supply of tobacco, which is not enough to sell all the year round

to do sales is to make the market, so that not selling well becomes selling well, and bones become gold

any cigarette is its own characteristic, and its use is the selling point. Like the 13 yuan genuine dragon, its unique Chinese herbal formula is actually a selling point. I destructed opium cigarettes for several months.

giving up is a kind of spirit and a kind of culture. When you make money, you can't forget the old customers, who are the cornerstone of the store. I spent money to buy many ashtrays and a small flint lighter that can be tied to the key, and distributed them to those loyal old customers. My reputation expanded all at once. My shop is in the middle of the street, and now the East and West have begun to squeeze into this shop. In the summer peak season, the turnover has exceeded 4000, which is a breakthrough with the original business

in the future, we will continue to give a group of regular customers some gifts in two months. In fact, most of the gifts we gave this time were sold out, because we were very careful at that time. The retail price of 5 fast forward was 10 yuan, and the quality and price were very good. In the last account, the basic balance of revenue and expenditure was a little surplus. I really didn't want to put in Liu Chengyin. I didn't spend money to spread word-of-mouth

the success of any sales depends on the details. Even if it's change, when we meet older customers, we only give them small change of 20. We don't study the consumers. That's to see the store, not to open it

small businesses need to be bigger and big businesses need to be refined

small business is a man, big business is a man.