Xiandong mine pool
Publish: 2021-04-14 04:01:24
1. With the development of cryptocurrency, the "blockchain technology" has become popular. In China, both giant companies such as batj (network, Alibaba, Tencent, and Jingdong) and companies like didi and ofo are actively exploring blockchain technology. Throughout the world, Wal Mart, MasterCard,
IBM and giant automobile manufacturers are trying to use blockchain technology to solve instry pain points. In addition, there are "declining" enterprises such as Kodak of Japan, hoping to fight a "turnaround battle" through blockchain
What does these phenomena show? This shows that the technology of block chain has great commercial value. Everyone hopes to cultivate a new world on this unknown land. So, with the development of blockchain technology this year, it has not only been a simple underlying technology, but also formed a complete ecosystem. Now let's talk with you from two aspects of "coin circle" and "chain circle": what is the ecosystem of blockchain, and let's understand the whole picture of blockchain instry
the first section of the coin circle
in the coin circle, there are always several terms: project party, exchange, media, mining machinery manufacturer. Next, let's take a detailed inventory of what's going on
first, the project side of the coin circle can be understood as follows: all those who issue tokens are the project side. Attention, it's a coin ring. There are also some project parties that don't issue money, such as Alibaba, Tencent and Netease, which are also doing blockchain projects. They don't issue money and only focus on technology. Then these project parties that don't issue money mainly focus on the role of blockchain in data security and supply chain, which we will talk about later
let's return to the topic of coin circle project parties. For example, yilaiyun and BoChang, which are more controversial recently, are the project parties of coin circle, as well as blockchain games, which are more popular recently. They also belong to coin circle project parties
one of the subversive aspects of the coin circle project is the combination of the project and the token, which directly replaces the equity with the token, and the token can be directly circulated. This is a very revolutionary point, so that many initial projects can be more convenient for financing. After financing, the feedback token can be circulated on the digital currency trading platform, and the investors can also exit very well
this "financing investment" approach seems to be another way to realize the listing and trading of equity in disguised form
therefore, it is such a mode that makes the project side of the coin circle the nearest place to the money. They can easily circle the money, and of course they can't resist the temptation, or they have been planning for a long time and run away after circling the money. The detailed process of token issuing by the project side is generally as follows:
the first step is to build a token system, which is similar to an app application. This is not very complicated, because Ethereum is open source, similar to Android Apple system, on which developers can develop specific applications
the second step is to write a white paper, which is similar to the business plan. The white paper is similar to the business plan, mainly including the team situation, technical situation and other information of the project
the third step is to find someone to do endorsement, and find some influential instry bigwigs to promote
the fourth step is to promote marketing, find some blockchain media to push soft articles and pull cooperation, which we will mention below
the fifth step is to find financing
Step 6: go to the stock exchange, and the token begins to spread widely
Second, the exchange
with the project side, let's talk about the exchange. If the project side is a procer, then the things they proce have to be sold and traded, right? The exchange is a trading place for the token of the project party. If the token of the project side is similar to the stock, then the exchange of the currency circle is similar to the secondary market of the stock market. However, the exchange of the currency circle has more power. It has the right to audit the currency, and can decide whether to put the currency in or out
of course, if the project party wants to pay the exchange a huge amount of money charging fees, the investors who trade in the exchange also need to pay the handling fee or withdrawal fee, and the rules of the handling fee and withdrawal fee of each exchange are different. In fact, the currency fees, handling fees and cash withdrawal fees constitute the profit model of the currency circle exchange. Of course, in addition to these three profit models, the profit model of the exchange includes the "market maker" business to earn the price difference, that is, the exchange creates liquidity through continuous trading, acts as a market maker and earns the price difference at the same time
at present, e to the increasingly fierce competition in the instry, there will be less and less currency fees and handling charges, or even no need, so the proportion of conventional profits will be less and less, which leads to the emergence of other profit models, such as platform currency and leverage handling charges. Let's talk about platform currency first. Platform currency is the currency issued by the exchange: okb and coin an belong to platform currency. These platform currencies issued by the exchange can be exchanged for BTC and eth. At the same time, the appreciation of platform currency's own value can lay a solid material foundation for the development of the exchange. For users, holding platform currency can enjoy the benefits of commission discount, platform dividend, special activities of the exchange, etc, This is platform currency. Leverage service charge refers to the currency financing function on the platform, which supports leveraged transactions and charges a certain proportion of service charge to currency financing users
all of the above are actually ecosystems constructed through the exchange's own resource output. Now, the exchange is still actively planning the whole instry to obtain income, such as the establishment of capital, mine pool, wallet, incubator, Engineering Institute, fund and other ways. We believe that if the exchange wants to develop for a long time, it must lay out the whole instry chain, find new breakout points of the instry, and build a complete ecosystem. Therefore, the proportion of strategic profits should be increased
3. Blockchain media
in the past two years when blockchain is hot, there are not only a lot of project parties, but also media. At present, there are about 200 well-known blockchain media. The content on the blockchain media platform is about the following points: policy, hacker, exchange, boss and project party. In addition to words, the operation mode of blockchain media also includes community activities, such as inviting "big guys" to share in the group, so as to achieve a precipitation of high-quality content and earn some traffic at the same time
Why do we have to mention blockchain media? It's because there are some differences between blockchain media and the media in our impression. What's the difference? The difference is that there are some interest relationships between blockchain media and the above mentioned project parties and exchanges. We just said that the project side is like a "procer" and the exchange is like a "sales market". Then, the role of the media is like "advertising platform & quot;. If the project wants to sell well, it needs publicity and advertising, then blockchain media plays such a role. Therefore, the investors of some blockchain media are the project side and the exchange
recently, there has been a bear market. Many blockchain media have laid off employees on a large scale. The reason is nothing more than the shortage of projects and funds. Therefore, it is far from enough for blockchain media to rely solely on the investment of the project side, the exchange and the advertising revenue. When the bear market comes and the project side and the exchange are affected, then the media is bound to face a very cruel winter. As a result, many blockchain media are also doing token issuing by project parties (the most typical are content communities such as coin and coin car, which belong to a media platform and are also doing token issuing by project parties), or some blockchain media are doing business such as wallet selling, mining machine renting and computing power
however, we believe that blockchain media, as the media, still play the role of guiding public opinion. Therefore, we should return to the essence and be a place to deliver instry value information, rather than a place to pile up advertisements. Therefore, blockchain media should keep up with the development of technology to realize its own survival and development. Relying on the advantages of blockchain technology and based on the consensus mechanism in the token system, it can realize the reasonable distribution of the interests of the media instry. In this regard, it may have a certain imagination< Fourth, mining machine manufacturers
in the final analysis, bitcoin mining is the competition of computing power. The stronger the computing power, the greater the probability of bitcoin mining. Therefore, in the business system of the whole coin circle, mining machinery manufacturers are a very important existence. We can see from one data: in the blockchain instry of Hurun 100 rich list in 2018, the richest person is Mr. Zhan ketuan, a partner of bitcontinental, a miner. In addition, according to the prospectus, bitcoin's net profit in the first half of the year was US $743 million, an increase of nearly eight times over the same period last year. Bitcoin once occupied more than 70% of the global market share of mining machinery, becoming the leader in the mining machinery instry. Not only mining machinery, bitmainland still occupies a near monopoly position in the mining pool (that is, a mode of cooperative mining): at present, the computing power of the top six mining pools in the world accounts for 79.2%
after the invention of China's first bitcoin miner, Jianan Yun, another miner chip research company, began to engage in the research of chips in the field of blockchain and artificial intelligence. In just a few years, it has also become an internationally famous chip enterprise
in fact, as early as 2012, the United States announced that it was going to sell a butterfly miner, but many people later thought it was a scam, because it took several years for the butterfly miner to go on sale, which also made the R & D of mining machines in other countries become very scared, and they were all scrambling for time, in a sense, Butterfly mining machine is also driving the prosperity of mining machine instry. So, in 2013, the mining machine has entered a season of contention, and a large number of ASIC mining machines have been put forward: or announced research and development, or announced pre-sale, or in the form of spot: cat roasting mining machine, pigeon mining machine, TMR mining machine, biter mining machine, Rand mining Bureau, little bee mining machine, Avalon original factory and various OEM, garden mining machine, Smart mining machine and so on... Maybe you haven't heard of these mining machines, because they are basically dead. Bitcontinental, Jianan Yun and Yibang have become mining machine giants< However, as a derivative instry under the prosperity of cryptocurrency market, the price of mining machinery is closely related to the cryptocurrency Market: in the bull market, the supply of mining machinery often falls short of demand, and it is common for miners to buy Mining machinery from "scalpers" at several times high prices. At this time, mining machinery manufacturers enter the dividend period. However, in a bear market, mining machinery manufacturers will also be adversely affected. As miners' enthusiasm for mining declines, some manufacturers have to rece the price of mining machinery to recover costs. For example, when bitcoin plummeted in March this year, a certain model of mining machine sold by Huaqiangbei was on sale at a price of 5000 yuan, and the price dropped from about 19000 yuan to
14000 yuan
[summary]
at this point, we can find that whether it is the project party, the exchange, the media, or the mining machinery, it can be said that it is a kind of "one-stop"
IBM and giant automobile manufacturers are trying to use blockchain technology to solve instry pain points. In addition, there are "declining" enterprises such as Kodak of Japan, hoping to fight a "turnaround battle" through blockchain
What does these phenomena show? This shows that the technology of block chain has great commercial value. Everyone hopes to cultivate a new world on this unknown land. So, with the development of blockchain technology this year, it has not only been a simple underlying technology, but also formed a complete ecosystem. Now let's talk with you from two aspects of "coin circle" and "chain circle": what is the ecosystem of blockchain, and let's understand the whole picture of blockchain instry
the first section of the coin circle
in the coin circle, there are always several terms: project party, exchange, media, mining machinery manufacturer. Next, let's take a detailed inventory of what's going on
first, the project side of the coin circle can be understood as follows: all those who issue tokens are the project side. Attention, it's a coin ring. There are also some project parties that don't issue money, such as Alibaba, Tencent and Netease, which are also doing blockchain projects. They don't issue money and only focus on technology. Then these project parties that don't issue money mainly focus on the role of blockchain in data security and supply chain, which we will talk about later
let's return to the topic of coin circle project parties. For example, yilaiyun and BoChang, which are more controversial recently, are the project parties of coin circle, as well as blockchain games, which are more popular recently. They also belong to coin circle project parties
one of the subversive aspects of the coin circle project is the combination of the project and the token, which directly replaces the equity with the token, and the token can be directly circulated. This is a very revolutionary point, so that many initial projects can be more convenient for financing. After financing, the feedback token can be circulated on the digital currency trading platform, and the investors can also exit very well
this "financing investment" approach seems to be another way to realize the listing and trading of equity in disguised form
therefore, it is such a mode that makes the project side of the coin circle the nearest place to the money. They can easily circle the money, and of course they can't resist the temptation, or they have been planning for a long time and run away after circling the money. The detailed process of token issuing by the project side is generally as follows:
the first step is to build a token system, which is similar to an app application. This is not very complicated, because Ethereum is open source, similar to Android Apple system, on which developers can develop specific applications
the second step is to write a white paper, which is similar to the business plan. The white paper is similar to the business plan, mainly including the team situation, technical situation and other information of the project
the third step is to find someone to do endorsement, and find some influential instry bigwigs to promote
the fourth step is to promote marketing, find some blockchain media to push soft articles and pull cooperation, which we will mention below
the fifth step is to find financing
Step 6: go to the stock exchange, and the token begins to spread widely
Second, the exchange
with the project side, let's talk about the exchange. If the project side is a procer, then the things they proce have to be sold and traded, right? The exchange is a trading place for the token of the project party. If the token of the project side is similar to the stock, then the exchange of the currency circle is similar to the secondary market of the stock market. However, the exchange of the currency circle has more power. It has the right to audit the currency, and can decide whether to put the currency in or out
of course, if the project party wants to pay the exchange a huge amount of money charging fees, the investors who trade in the exchange also need to pay the handling fee or withdrawal fee, and the rules of the handling fee and withdrawal fee of each exchange are different. In fact, the currency fees, handling fees and cash withdrawal fees constitute the profit model of the currency circle exchange. Of course, in addition to these three profit models, the profit model of the exchange includes the "market maker" business to earn the price difference, that is, the exchange creates liquidity through continuous trading, acts as a market maker and earns the price difference at the same time
at present, e to the increasingly fierce competition in the instry, there will be less and less currency fees and handling charges, or even no need, so the proportion of conventional profits will be less and less, which leads to the emergence of other profit models, such as platform currency and leverage handling charges. Let's talk about platform currency first. Platform currency is the currency issued by the exchange: okb and coin an belong to platform currency. These platform currencies issued by the exchange can be exchanged for BTC and eth. At the same time, the appreciation of platform currency's own value can lay a solid material foundation for the development of the exchange. For users, holding platform currency can enjoy the benefits of commission discount, platform dividend, special activities of the exchange, etc, This is platform currency. Leverage service charge refers to the currency financing function on the platform, which supports leveraged transactions and charges a certain proportion of service charge to currency financing users
all of the above are actually ecosystems constructed through the exchange's own resource output. Now, the exchange is still actively planning the whole instry to obtain income, such as the establishment of capital, mine pool, wallet, incubator, Engineering Institute, fund and other ways. We believe that if the exchange wants to develop for a long time, it must lay out the whole instry chain, find new breakout points of the instry, and build a complete ecosystem. Therefore, the proportion of strategic profits should be increased
3. Blockchain media
in the past two years when blockchain is hot, there are not only a lot of project parties, but also media. At present, there are about 200 well-known blockchain media. The content on the blockchain media platform is about the following points: policy, hacker, exchange, boss and project party. In addition to words, the operation mode of blockchain media also includes community activities, such as inviting "big guys" to share in the group, so as to achieve a precipitation of high-quality content and earn some traffic at the same time
Why do we have to mention blockchain media? It's because there are some differences between blockchain media and the media in our impression. What's the difference? The difference is that there are some interest relationships between blockchain media and the above mentioned project parties and exchanges. We just said that the project side is like a "procer" and the exchange is like a "sales market". Then, the role of the media is like "advertising platform & quot;. If the project wants to sell well, it needs publicity and advertising, then blockchain media plays such a role. Therefore, the investors of some blockchain media are the project side and the exchange
recently, there has been a bear market. Many blockchain media have laid off employees on a large scale. The reason is nothing more than the shortage of projects and funds. Therefore, it is far from enough for blockchain media to rely solely on the investment of the project side, the exchange and the advertising revenue. When the bear market comes and the project side and the exchange are affected, then the media is bound to face a very cruel winter. As a result, many blockchain media are also doing token issuing by project parties (the most typical are content communities such as coin and coin car, which belong to a media platform and are also doing token issuing by project parties), or some blockchain media are doing business such as wallet selling, mining machine renting and computing power
however, we believe that blockchain media, as the media, still play the role of guiding public opinion. Therefore, we should return to the essence and be a place to deliver instry value information, rather than a place to pile up advertisements. Therefore, blockchain media should keep up with the development of technology to realize its own survival and development. Relying on the advantages of blockchain technology and based on the consensus mechanism in the token system, it can realize the reasonable distribution of the interests of the media instry. In this regard, it may have a certain imagination< Fourth, mining machine manufacturers
in the final analysis, bitcoin mining is the competition of computing power. The stronger the computing power, the greater the probability of bitcoin mining. Therefore, in the business system of the whole coin circle, mining machinery manufacturers are a very important existence. We can see from one data: in the blockchain instry of Hurun 100 rich list in 2018, the richest person is Mr. Zhan ketuan, a partner of bitcontinental, a miner. In addition, according to the prospectus, bitcoin's net profit in the first half of the year was US $743 million, an increase of nearly eight times over the same period last year. Bitcoin once occupied more than 70% of the global market share of mining machinery, becoming the leader in the mining machinery instry. Not only mining machinery, bitmainland still occupies a near monopoly position in the mining pool (that is, a mode of cooperative mining): at present, the computing power of the top six mining pools in the world accounts for 79.2%
after the invention of China's first bitcoin miner, Jianan Yun, another miner chip research company, began to engage in the research of chips in the field of blockchain and artificial intelligence. In just a few years, it has also become an internationally famous chip enterprise
in fact, as early as 2012, the United States announced that it was going to sell a butterfly miner, but many people later thought it was a scam, because it took several years for the butterfly miner to go on sale, which also made the R & D of mining machines in other countries become very scared, and they were all scrambling for time, in a sense, Butterfly mining machine is also driving the prosperity of mining machine instry. So, in 2013, the mining machine has entered a season of contention, and a large number of ASIC mining machines have been put forward: or announced research and development, or announced pre-sale, or in the form of spot: cat roasting mining machine, pigeon mining machine, TMR mining machine, biter mining machine, Rand mining Bureau, little bee mining machine, Avalon original factory and various OEM, garden mining machine, Smart mining machine and so on... Maybe you haven't heard of these mining machines, because they are basically dead. Bitcontinental, Jianan Yun and Yibang have become mining machine giants< However, as a derivative instry under the prosperity of cryptocurrency market, the price of mining machinery is closely related to the cryptocurrency Market: in the bull market, the supply of mining machinery often falls short of demand, and it is common for miners to buy Mining machinery from "scalpers" at several times high prices. At this time, mining machinery manufacturers enter the dividend period. However, in a bear market, mining machinery manufacturers will also be adversely affected. As miners' enthusiasm for mining declines, some manufacturers have to rece the price of mining machinery to recover costs. For example, when bitcoin plummeted in March this year, a certain model of mining machine sold by Huaqiangbei was on sale at a price of 5000 yuan, and the price dropped from about 19000 yuan to
14000 yuan
[summary]
at this point, we can find that whether it is the project party, the exchange, the media, or the mining machinery, it can be said that it is a kind of "one-stop"
2. Xiaomi mobile phone can't dig bitcoin<
Mining steps:
(1) Download bitcoin official client, click here to download bitcoin official client
(2) after installing the client, start the client, and the client will start to synchronize network data within 3 minutes after startup. Because bitcoin data is huge, it may take several hours (depending on network speed and computer performance). The picture shows the client synchronizing network data:
please make sure that your C disk has more than 10GB of free space. If the C disk is not enough, you need to set the data to D disk or e disk. Check the method of putting bitcoin packets to D disk
(3) if your client displays English and you are not good at English, You can set it to Chinese. Click here to see how to set the bitcoin client to Chinese.
(4) the client's synchronization of network data will not affect our mining. First, we get our account address and click the "collection address" button of the client. At this time, you will see a very long list of addresses, similar to your bitcoin account, The bitcoin account address is automatically generated and unique in the world
(5) your account is now 0.00 BTC, which means you don't have bitcoin yet, but you can start mining now. Download an easy-to-use mining software cgminer. Click here to download the bitcoin mining software cgminer (cgminer can dig bitcoin and most of the coins, But not all currency mining can use cgminer)
(6) you need to confirm your graphics card model, if it is NVIDIA graphics card, then you can directly mine, please skip this step. If it is an ATI graphics card, you need to install an AMD SDK package in addition to cgminer. Click here to download the AMD SDK installation package
(7) cgminer is an English interface, but it does not affect a rookie to use it. Please unzip the downloaded cgminer to anywhere on your computer, and then enter the cgminer folder
(8) in the cgminer folder, create a new text file (txt) and write the content code as:
cgminer - O http://pool.btc38.com : 9332 - U XXXXXX - P btc38
change the above XXXXXX to the account address of your BTC wallet (get your address according to section 4 of this tutorial), After filling in, it is shown in the figure:
Xiaobian has configured the mine pool and port for you in the above code (the mine pool is a completely free mine pool provided by bitage). If you want to use other mine pools and ports in the future, please modify the mine pool URL and port by yourself
(9) change the. TXT suffix of the newly created TXT text file to. Bat suffix (if you compare dishes, the suffix will not be displayed at the back of the text file and the file name suffix will not be changed, please click here). After modification, the file is as shown in the figure:
(10) then double-click the run.bat file above to start mining. For example, if you get 0.001 bitcoin, it will be stored in the BTC address you fill in. (because BTC mining is very difficult at this stage, you may have to wait for a whole day to get BTC revenue. When mining, there may be some cards on the computer screen, because most of the resources of the graphics card are occupied.). (11) you may also want to know how to understand the mining interface. The figure below mainly indicates your speed and status:
note: in fact, the number of users of bitcoin mining is very large, and the output of bitcoin every 10 minutes is very limited, so mining is very difficult, If you have a powerful graphics card, there will be certain benefits. If your graphics card is not good, it may take you n hours to get a little bit of bitcoin. This tutorial is written by Xiaotian, editor of bitage (btc38. Com). The purpose is to let you get started and experience bitcoin. If you want to get better benefits through mining, You need to learn more about bitcoin pools and bitcoin mining strategies
4. Bitcoin mining pool
as mentioned above, the number of users of bitcoin mining is very large, and the output of bitcoin every 10 minutes is very limited, resulting in the situation that 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 have come up with a team mining method. The so-called team mining is the mining pool that we are going to talk about now
the mine pool is a server designed through a specific algorithm. All users connected to the mine pool server will form a team to mine. Although the performance of personal computers is small, the overall performance of thousands of people will become very powerful. In this case, the success rate of mining will be greatly improved, Once the team in the mine successfully creates a block, then all the team members will pay dividends according to the performance of each person's computer. For example, 1000 people are mining in the same mine pool. After digging out a block, the reward of n bitcoins generated by the block will be distributed according to the computer performance of the 1000 people. If your computer performance is strong, it may get 1 in 100; if the performance is backward, it may get 1 in 10000
in this case, the developer of the mine pool will generally charge 1% ~ 3% of the fee for each user as a handling fee, but because this method makes it more stable for everyone to get bitcoin, almost everyone will choose to mine in the mine pool instead of mining alone
as mentioned in the mining tutorial above, the mine pool provided free of charge in the bit age adopts the P2P technology architecture and does not charge any fees to users. It is one of the mainstream mine pools. In addition, there are BTC guild and deepbit, which are also very popular. Although the design of each mine pool is not the same, but the use method is basically the same and simple, so this tutorial will not do further description, you can explore by yourself. Even though Xiaobian has configured the mine pool and port provided by bit era for you by default in the previous tutorial, in order to let you have a deeper understanding of the mine pool, here are several mainstream mine pools for you to choose:
bit mine pool (free, recommended by Xiaobian) | bitcoin.cz (suitable for novices) | BTC Guide (the oldest brand) | deepbit (stable and efficient) | f2pool (domestic)
Mining steps:
(1) Download bitcoin official client, click here to download bitcoin official client
(2) after installing the client, start the client, and the client will start to synchronize network data within 3 minutes after startup. Because bitcoin data is huge, it may take several hours (depending on network speed and computer performance). The picture shows the client synchronizing network data:
please make sure that your C disk has more than 10GB of free space. If the C disk is not enough, you need to set the data to D disk or e disk. Check the method of putting bitcoin packets to D disk
(3) if your client displays English and you are not good at English, You can set it to Chinese. Click here to see how to set the bitcoin client to Chinese.
(4) the client's synchronization of network data will not affect our mining. First, we get our account address and click the "collection address" button of the client. At this time, you will see a very long list of addresses, similar to your bitcoin account, The bitcoin account address is automatically generated and unique in the world
(5) your account is now 0.00 BTC, which means you don't have bitcoin yet, but you can start mining now. Download an easy-to-use mining software cgminer. Click here to download the bitcoin mining software cgminer (cgminer can dig bitcoin and most of the coins, But not all currency mining can use cgminer)
(6) you need to confirm your graphics card model, if it is NVIDIA graphics card, then you can directly mine, please skip this step. If it is an ATI graphics card, you need to install an AMD SDK package in addition to cgminer. Click here to download the AMD SDK installation package
(7) cgminer is an English interface, but it does not affect a rookie to use it. Please unzip the downloaded cgminer to anywhere on your computer, and then enter the cgminer folder
(8) in the cgminer folder, create a new text file (txt) and write the content code as:
cgminer - O http://pool.btc38.com : 9332 - U XXXXXX - P btc38
change the above XXXXXX to the account address of your BTC wallet (get your address according to section 4 of this tutorial), After filling in, it is shown in the figure:
Xiaobian has configured the mine pool and port for you in the above code (the mine pool is a completely free mine pool provided by bitage). If you want to use other mine pools and ports in the future, please modify the mine pool URL and port by yourself
(9) change the. TXT suffix of the newly created TXT text file to. Bat suffix (if you compare dishes, the suffix will not be displayed at the back of the text file and the file name suffix will not be changed, please click here). After modification, the file is as shown in the figure:
(10) then double-click the run.bat file above to start mining. For example, if you get 0.001 bitcoin, it will be stored in the BTC address you fill in. (because BTC mining is very difficult at this stage, you may have to wait for a whole day to get BTC revenue. When mining, there may be some cards on the computer screen, because most of the resources of the graphics card are occupied.). (11) you may also want to know how to understand the mining interface. The figure below mainly indicates your speed and status:
note: in fact, the number of users of bitcoin mining is very large, and the output of bitcoin every 10 minutes is very limited, so mining is very difficult, If you have a powerful graphics card, there will be certain benefits. If your graphics card is not good, it may take you n hours to get a little bit of bitcoin. This tutorial is written by Xiaotian, editor of bitage (btc38. Com). The purpose is to let you get started and experience bitcoin. If you want to get better benefits through mining, You need to learn more about bitcoin pools and bitcoin mining strategies
4. Bitcoin mining pool
as mentioned above, the number of users of bitcoin mining is very large, and the output of bitcoin every 10 minutes is very limited, resulting in the situation that 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 have come up with a team mining method. The so-called team mining is the mining pool that we are going to talk about now
the mine pool is a server designed through a specific algorithm. All users connected to the mine pool server will form a team to mine. Although the performance of personal computers is small, the overall performance of thousands of people will become very powerful. In this case, the success rate of mining will be greatly improved, Once the team in the mine successfully creates a block, then all the team members will pay dividends according to the performance of each person's computer. For example, 1000 people are mining in the same mine pool. After digging out a block, the reward of n bitcoins generated by the block will be distributed according to the computer performance of the 1000 people. If your computer performance is strong, it may get 1 in 100; if the performance is backward, it may get 1 in 10000
in this case, the developer of the mine pool will generally charge 1% ~ 3% of the fee for each user as a handling fee, but because this method makes it more stable for everyone to get bitcoin, almost everyone will choose to mine in the mine pool instead of mining alone
as mentioned in the mining tutorial above, the mine pool provided free of charge in the bit age adopts the P2P technology architecture and does not charge any fees to users. It is one of the mainstream mine pools. In addition, there are BTC guild and deepbit, which are also very popular. Although the design of each mine pool is not the same, but the use method is basically the same and simple, so this tutorial will not do further description, you can explore by yourself. Even though Xiaobian has configured the mine pool and port provided by bit era for you by default in the previous tutorial, in order to let you have a deeper understanding of the mine pool, here are several mainstream mine pools for you to choose:
bit mine pool (free, recommended by Xiaobian) | bitcoin.cz (suitable for novices) | BTC Guide (the oldest brand) | deepbit (stable and efficient) | f2pool (domestic)
3. Three way HD5870 is similar to hd7970 now. It can dig several bitcoins a month. A bitcoin is worth more than 1000 RMB!
4.
1. Back up important data and photos and restore factory settings. Don't install applications from unknown sources. In addition, don't authorize in permission settings
2. You can swipe the computer to see if it can't work. Besides, the computer needs to clean up the memory on time so that it won't get stuck. The memory of the mobile phone is seriously insufficient. It is recommended to clean up the memory lightly, and then restart your mobile phone again
3. Clear the data of the mobile phone. If there are important things, save them on the network disk first, and then restore the factory settings three times. This is safer
1. Set the security level of the browser. Our common browsers all have the function of security level setting. Through reasonable setting, we can effectively filter the access restrictions of some illegal websites, so as to rece the damage to computers and personal information
2. Firmly resist reactionary, pornographic and violent websites. On the one hand, these bad information will affect the physical and mental health of teenagers, on the other hand, many illegal websites will use browser vulnerabilities to attack users3. Don't click illegal links at will
When downloading software and materials, we should choose the regular website or official website5. Turn off some sensitive functions in common communication software. Such as "people nearby" in wechat and "allowing strangers to view photos" in wechat privacy
6. Do not take photos of your family and address. If it goes on like this for a long time, as long as it is analyzed and summarized by others, the information exposed will become a complete set of information, which hides all kinds of unpredictable risks
Do not test related information on the Internet. Some websites do surveys and ask for information about age, hobbies, gender, etc. to do it for a small profit. This information may be used by others, and graally summarized, and sold to others for profit or threat5. Caiyunbit's original creation is endless
unknowingly, it came to 2014, with several Avalon generation USB mining machines in hand. You're right. It's not a roasted cat USB miner or any other chip. It's a USB miner of Avalon generation, with a single computing power of about 300m. Of course, the USB mining machine with more than 300 m computing power is of little practical value. It's just a souvenir for everyone<
first, the appearance
first, let's look at the appearance. The workmanship is regular, not exquisite, but slightly rough:
Second, the required software
let's start running cgminer to see how to use it in practice. Before starting work, you need to download three softwares:
1. Cgminer. Anyway, the latest version of 3.9.0 is also available for testing, http://ck.kolivas.org/apps/cgminer/
2. Zadig. This software is needed to replace the driver later. Download it from the same directory as cgminer
3. USB driver of mining machine, http://www.silabs.com/procts/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
3. Install and run
after downloading the above software, start to install and run
1. Insert the USB miner first, and you will be prompted to find the new hardware, and then complete the driver installation according to the prompts
2. After the driver is installed, you can see the new things in the device manager
3. Run Zadig, first click options -- list all devices, then drop down to select port, and replace the driver silabser (v6.6.1.0) with the driver WinUsb (v6.1.7600.16385) recognized by cgminer. After this step is completed, it is recommended to restart the computer
4. Create a new batch file in the cgminer directory, The following command: cgminer - O pool address - U miner name - P 123456 -- Icarus options 115200:1:1 -- Icarus timing 3.0 = 100 -- USB: number of mining machines
there are six USB mining machine fish pools, for example: cgminer - O stratum+ tcp://stratum.f2pool.com : 3333 - U AAAA. 2 - P 123456 -- Icarus options 115200:1:1 -- Icarus timing 3.0 = 100 -- USB: 6
since cgminer3.2.0, The method of supporting USB mining machine is modified, which does not need to add the - S - com parameter
5, run batch processing, and start to display mining data, about 300m, which is basically normal.
unknowingly, it came to 2014, with several Avalon generation USB mining machines in hand. You're right. It's not a roasted cat USB miner or any other chip. It's a USB miner of Avalon generation, with a single computing power of about 300m. Of course, the USB mining machine with more than 300 m computing power is of little practical value. It's just a souvenir for everyone<
first, the appearance
first, let's look at the appearance. The workmanship is regular, not exquisite, but slightly rough:
Second, the required software
let's start running cgminer to see how to use it in practice. Before starting work, you need to download three softwares:
1. Cgminer. Anyway, the latest version of 3.9.0 is also available for testing, http://ck.kolivas.org/apps/cgminer/
2. Zadig. This software is needed to replace the driver later. Download it from the same directory as cgminer
3. USB driver of mining machine, http://www.silabs.com/procts/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
3. Install and run
after downloading the above software, start to install and run
1. Insert the USB miner first, and you will be prompted to find the new hardware, and then complete the driver installation according to the prompts
2. After the driver is installed, you can see the new things in the device manager
3. Run Zadig, first click options -- list all devices, then drop down to select port, and replace the driver silabser (v6.6.1.0) with the driver WinUsb (v6.1.7600.16385) recognized by cgminer. After this step is completed, it is recommended to restart the computer
4. Create a new batch file in the cgminer directory, The following command: cgminer - O pool address - U miner name - P 123456 -- Icarus options 115200:1:1 -- Icarus timing 3.0 = 100 -- USB: number of mining machines
there are six USB mining machine fish pools, for example: cgminer - O stratum+ tcp://stratum.f2pool.com : 3333 - U AAAA. 2 - P 123456 -- Icarus options 115200:1:1 -- Icarus timing 3.0 = 100 -- USB: 6
since cgminer3.2.0, The method of supporting USB mining machine is modified, which does not need to add the - S - com parameter
5, run batch processing, and start to display mining data, about 300m, which is basically normal.
6. Blockchain is an important concept of bitcoin. In essence, it is a decentralized database and the underlying technology of bitcoin. Blockchain is a series of data blocks generated by cryptography. Each data block contains the information of a bitcoin network transaction, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
both eurocrowdfunding and Ethereum use blockchain technology.
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
both eurocrowdfunding and Ethereum use blockchain technology.
7. Is the ninth wave of CBT cloud bit blockchain mining wealth a fraud
the result of argument: it's a scam, a new type of Ponzi scheme. Only a small number of people who entered early can make money, and most people's assets never come back
argument: the level 3 miner is a watershed. Let me start with the most deceptive Level 3 (including level 4) miner. Because of the new reward activity in April, the platform will give 5000 mine pool assets as a gift if you purchase more than 1000 yuan to upgrade level 3 miners, plus the 5000 mine pool assets converted from 1000 yuan. In this way, you will have 10000 assets, and you can release two thousandths of them every day, that is, 20 yuan. After 65 days, all 1300 yuan can be sold. After decting 300 yuan's handling charge, you can recover the cost This process is actually one or two days earlier, because the currency is appreciating. Take the price of 25 yuan as an example, 1000 yuan needs 25000 yuan, and the price of the currency is 0.7 yuan every 10 days. On the 60th day, your unit price of the currency is 28.5 yuan, and it only takes less than 60 days to recover 25000 yuan.)
it seems that we can make a steady profit without losing money here. Please listen to me carefully: the premise of the above 60 days' return is that the platform policy has not changed, but the reality is that the policy changes faster than turning books. On November 17, 2018, we just adjusted the minimum sales quota from 2 to 3, now it has been adjusted to the minimum of 20 on April 8, and it may be increased to 50 or 100 in the future, At the same time, the output of mining machinery has been reced by half, that is, the period for you to dig up 20 saleable quotas has doubled. In addition, the saleable quota of 1.8 yuan you bought last year is only 1.5 yuan now, the level 3 absenteeism is only 1.6 yuan in the future, and it will be reced to 1.4 yuan or even 1.2 yuan in the future. All these adjustments have only one purpose, that is to lengthen the return cycle of miners, It is convenient for the platform owner to harvest at the highest point
some people will ask, I bought and sold money with other Alipay, the platform did not take a penny? Well, I ask you, if half of those Alipay accounts selling money are the accounts of the banker, when you dig hard, the dealer's mobile phone may display another version of CBT software, which can sell 100 million of the amount. If he saw more miners in the store, he would sell more, and he would sell less if he bought less. Of course, the dealer will not sell it in a Alipay account. There must be many accounts on his hands, just like a lot of bank card numbers in the telecommunications fraud. This conjecture is easy to verify. Friends who reply can tell which accounts they bought their money from. I guarantee that there are not a few repeated accounts I'll first dry up two Alipay names, * Hui Zhen Jiao Jiao. There will be nicknames in front of these names, such as heartbeat. The heartbeat here is nickname. Don't worry about him. Nicknames will change every day, just drying the name on the back.
therefore, the makers of the platform usually earn money from the miners. The daily sales quota of the miners is up to 200, and the makers have no limit. When the income reaches the expected one day, they begin to harvest. None of the miners' coins can be sold, but they can buy unlimited coins, because the makers block your sales orders, and only they are selling, Unidentified new miners continue to invest until the platform collapses
in fact, the difference between this platform and the ordinary Ponzi scheme is that there is only one banker in the Ponzi scheme. Everyone gives money to him and he pays interest regularly. When you are enjoying the interest, the principal is taken away by him, and CBT is even more secret. The banker sneaks into the miners and collects the wool unconsciously in the process of buying and selling coins, which is not enough, Sooner or later, the sheep will be killed
next, let's talk about level 1 and level 2 miners. Let's give an example directly.
next, let's talk about level 1 and level 2 miners. Let's give an example directly: a new miner registered, 10 micro mining machines were sent by the platform, and 40 coins were bought that day, (because you can buy 40 units to give 60 units of saleable amount) the amount converted to the pool assets is 200, and the amount released on the same day is 0.4. After 50 days, you can collect 20 units of saleable balance, sell the 20 units, and then collect 20 units of saleable balance on the next 50 days. At this time, you get back the capital. After 60 units, you still have 20 units, and then you can use this unit to make a net profit. Now let's take a look at your pool assets, Although 40 coins have been released, because there are 10 mining machines to supplement each day, there are still 200 ore pool assets in the basic proction. According to the previous algorithm, 20 coins can be released to the balance that can be sold in another 50 days. According to the current price of 25 yuan per coin, it seems that you can earn 500 yuan (excluding the appreciation part of the currency ring this period)
the reality is that the platform still has to charge 30% of the service charge, that is, you can only sell 26 of the available balance for the first time (those 6 are dected by the platform), that is, 65 days later, and 130 days later for the second time. At that time, you get back the capital, but there are only 8 of the available balance of 60, so you can't sell them. That's the end of the cycle. Fortunately, after 130 days of hard work, we made a price difference
now let's calculate the price difference: if the two coins are sold on the 130th day, the profit can be maximized. According to the current price of $3.60 per coin, which is increased by 1 cent per day, after 130 days, the price of $1.3 per coin is increased by 9.1 RMB, and the net profit of $40 is 364 RMB. It will take 130 days for such a profit to be received. Who knows if the platform can last 130 days? Maybe it will hang up in 30 days. Then it will change its name, such as GBT, rmbt and so on, and continue to cheat people. Even if it lasts more than 130 days, if it adjusts the minimum selling amount to 50, you will be cool, because if you want to sell 50 pieces, you need 65 coins and more than 65 sales quota, and your quota is only 60, not enough! If the above two situations happen, you will not be able to get it back
next, when we went back to the original time of buying coins, we already knew that we could not make money from the mining machine by buying 40 coins at a time. We just recovered the cost and earned a price difference by the way. How can we still have 26 sales quota for us after 130 days? After calculation, we know that we need to buy at least 130 coins for the first time, and the calculation process is omitted. Let's come to the conclusion, 130 coins are converted into 650 mine pool assets, releasing 2% of the total, i.e. 1.3 yuan per day. After 130 days, 169 coins are released. After 39 coins are dected from the platform, you can recover the cost. At this time, there are still 130 * 1.5-169 = 26 saleable lines left. Ha ha, I can finally set up the White Wolf empty handed. These 26 coins are my net income, releasing 2% of the total, i.e. 1.3 yuan per day, After 20 days, I can sell these coins. When you are happy, the platform announced that the service charge will be increased to 40%. Ha ha, it's back to the state of earning the price difference. You can't realize it when you look at the miner in your hand digging every day. The only thing that can be realized is the 130 coins you bought with real gold and silver
some people said: I seem to see the opportunity to make money from the landlord's calculation, "according to the current $3.60 per coin, up 1 cent per day, after 130 days, a coin rose by $1.3, that is, 9.1 yuan RMB." then I put 500 coins in 130 days to make a net profit of 4550 yuan, and the cost of 500 coins is 12500 RMB. My yield in 130 days has reached 36.4%! Don't be happy. Don't you find that it's more like a Ponzi scheme? Once there are fewer follow-up takers, your coins will not be sold, or only a small part will be sold, and the cost will not be recovered. What's the profit
there is only one kind of person who makes money in the Ponzi scheme except the banker, that is, the smart person who withdraws with interest after making a little money. But how can the banker be so stupid? They will try their best to delay the withdrawal of your principal
cloudbit and blockchain are all pretexts. They are actually Ponzi's scam. Everyone thinks that the core of blockchain is decentralization. In fact, the core is the open source of source code. Everyone can see the operation mode of block algorithm. Anyone who wants to change the rules must have the consent of all participants. The rules of CBT algorithm are completely regulated by the makers, Today, we will halve the output of mining machinery, tomorrow we will increase the minimum starting quota, and the day after tomorrow we will lower the saleable ratio to 1.3 and 1.2. Do you think it is time for blockchain technology! Not to mention whether there is a back door in the background, we don't know whether the price of currency is determined by supply and demand
it's like sitting down to play mahjong and watching you have more than one color. The dealer stipulates that you have more than one color to count as a fart. After a while, when you touch more than one color, he stipulates that it's also a fart. It's strange that you don't lose money in this game!
the result of argument: it's a scam, a new type of Ponzi scheme. Only a small number of people who entered early can make money, and most people's assets never come back
argument: the level 3 miner is a watershed. Let me start with the most deceptive Level 3 (including level 4) miner. Because of the new reward activity in April, the platform will give 5000 mine pool assets as a gift if you purchase more than 1000 yuan to upgrade level 3 miners, plus the 5000 mine pool assets converted from 1000 yuan. In this way, you will have 10000 assets, and you can release two thousandths of them every day, that is, 20 yuan. After 65 days, all 1300 yuan can be sold. After decting 300 yuan's handling charge, you can recover the cost This process is actually one or two days earlier, because the currency is appreciating. Take the price of 25 yuan as an example, 1000 yuan needs 25000 yuan, and the price of the currency is 0.7 yuan every 10 days. On the 60th day, your unit price of the currency is 28.5 yuan, and it only takes less than 60 days to recover 25000 yuan.)
it seems that we can make a steady profit without losing money here. Please listen to me carefully: the premise of the above 60 days' return is that the platform policy has not changed, but the reality is that the policy changes faster than turning books. On November 17, 2018, we just adjusted the minimum sales quota from 2 to 3, now it has been adjusted to the minimum of 20 on April 8, and it may be increased to 50 or 100 in the future, At the same time, the output of mining machinery has been reced by half, that is, the period for you to dig up 20 saleable quotas has doubled. In addition, the saleable quota of 1.8 yuan you bought last year is only 1.5 yuan now, the level 3 absenteeism is only 1.6 yuan in the future, and it will be reced to 1.4 yuan or even 1.2 yuan in the future. All these adjustments have only one purpose, that is to lengthen the return cycle of miners, It is convenient for the platform owner to harvest at the highest point
some people will ask, I bought and sold money with other Alipay, the platform did not take a penny? Well, I ask you, if half of those Alipay accounts selling money are the accounts of the banker, when you dig hard, the dealer's mobile phone may display another version of CBT software, which can sell 100 million of the amount. If he saw more miners in the store, he would sell more, and he would sell less if he bought less. Of course, the dealer will not sell it in a Alipay account. There must be many accounts on his hands, just like a lot of bank card numbers in the telecommunications fraud. This conjecture is easy to verify. Friends who reply can tell which accounts they bought their money from. I guarantee that there are not a few repeated accounts I'll first dry up two Alipay names, * Hui Zhen Jiao Jiao. There will be nicknames in front of these names, such as heartbeat. The heartbeat here is nickname. Don't worry about him. Nicknames will change every day, just drying the name on the back.
therefore, the makers of the platform usually earn money from the miners. The daily sales quota of the miners is up to 200, and the makers have no limit. When the income reaches the expected one day, they begin to harvest. None of the miners' coins can be sold, but they can buy unlimited coins, because the makers block your sales orders, and only they are selling, Unidentified new miners continue to invest until the platform collapses
in fact, the difference between this platform and the ordinary Ponzi scheme is that there is only one banker in the Ponzi scheme. Everyone gives money to him and he pays interest regularly. When you are enjoying the interest, the principal is taken away by him, and CBT is even more secret. The banker sneaks into the miners and collects the wool unconsciously in the process of buying and selling coins, which is not enough, Sooner or later, the sheep will be killed
next, let's talk about level 1 and level 2 miners. Let's give an example directly.
next, let's talk about level 1 and level 2 miners. Let's give an example directly: a new miner registered, 10 micro mining machines were sent by the platform, and 40 coins were bought that day, (because you can buy 40 units to give 60 units of saleable amount) the amount converted to the pool assets is 200, and the amount released on the same day is 0.4. After 50 days, you can collect 20 units of saleable balance, sell the 20 units, and then collect 20 units of saleable balance on the next 50 days. At this time, you get back the capital. After 60 units, you still have 20 units, and then you can use this unit to make a net profit. Now let's take a look at your pool assets, Although 40 coins have been released, because there are 10 mining machines to supplement each day, there are still 200 ore pool assets in the basic proction. According to the previous algorithm, 20 coins can be released to the balance that can be sold in another 50 days. According to the current price of 25 yuan per coin, it seems that you can earn 500 yuan (excluding the appreciation part of the currency ring this period)
the reality is that the platform still has to charge 30% of the service charge, that is, you can only sell 26 of the available balance for the first time (those 6 are dected by the platform), that is, 65 days later, and 130 days later for the second time. At that time, you get back the capital, but there are only 8 of the available balance of 60, so you can't sell them. That's the end of the cycle. Fortunately, after 130 days of hard work, we made a price difference
now let's calculate the price difference: if the two coins are sold on the 130th day, the profit can be maximized. According to the current price of $3.60 per coin, which is increased by 1 cent per day, after 130 days, the price of $1.3 per coin is increased by 9.1 RMB, and the net profit of $40 is 364 RMB. It will take 130 days for such a profit to be received. Who knows if the platform can last 130 days? Maybe it will hang up in 30 days. Then it will change its name, such as GBT, rmbt and so on, and continue to cheat people. Even if it lasts more than 130 days, if it adjusts the minimum selling amount to 50, you will be cool, because if you want to sell 50 pieces, you need 65 coins and more than 65 sales quota, and your quota is only 60, not enough! If the above two situations happen, you will not be able to get it back
next, when we went back to the original time of buying coins, we already knew that we could not make money from the mining machine by buying 40 coins at a time. We just recovered the cost and earned a price difference by the way. How can we still have 26 sales quota for us after 130 days? After calculation, we know that we need to buy at least 130 coins for the first time, and the calculation process is omitted. Let's come to the conclusion, 130 coins are converted into 650 mine pool assets, releasing 2% of the total, i.e. 1.3 yuan per day. After 130 days, 169 coins are released. After 39 coins are dected from the platform, you can recover the cost. At this time, there are still 130 * 1.5-169 = 26 saleable lines left. Ha ha, I can finally set up the White Wolf empty handed. These 26 coins are my net income, releasing 2% of the total, i.e. 1.3 yuan per day, After 20 days, I can sell these coins. When you are happy, the platform announced that the service charge will be increased to 40%. Ha ha, it's back to the state of earning the price difference. You can't realize it when you look at the miner in your hand digging every day. The only thing that can be realized is the 130 coins you bought with real gold and silver
some people said: I seem to see the opportunity to make money from the landlord's calculation, "according to the current $3.60 per coin, up 1 cent per day, after 130 days, a coin rose by $1.3, that is, 9.1 yuan RMB." then I put 500 coins in 130 days to make a net profit of 4550 yuan, and the cost of 500 coins is 12500 RMB. My yield in 130 days has reached 36.4%! Don't be happy. Don't you find that it's more like a Ponzi scheme? Once there are fewer follow-up takers, your coins will not be sold, or only a small part will be sold, and the cost will not be recovered. What's the profit
there is only one kind of person who makes money in the Ponzi scheme except the banker, that is, the smart person who withdraws with interest after making a little money. But how can the banker be so stupid? They will try their best to delay the withdrawal of your principal
cloudbit and blockchain are all pretexts. They are actually Ponzi's scam. Everyone thinks that the core of blockchain is decentralization. In fact, the core is the open source of source code. Everyone can see the operation mode of block algorithm. Anyone who wants to change the rules must have the consent of all participants. The rules of CBT algorithm are completely regulated by the makers, Today, we will halve the output of mining machinery, tomorrow we will increase the minimum starting quota, and the day after tomorrow we will lower the saleable ratio to 1.3 and 1.2. Do you think it is time for blockchain technology! Not to mention whether there is a back door in the background, we don't know whether the price of currency is determined by supply and demand
it's like sitting down to play mahjong and watching you have more than one color. The dealer stipulates that you have more than one color to count as a fart. After a while, when you touch more than one color, he stipulates that it's also a fart. It's strange that you don't lose money in this game!
8. BTD can be sold if it has energy value. Energy value can be given by inviting people or re casting. If there is no energy value, it cannot be sold
9. Go to the crater.
although the place is large,
the mines are relatively concentrated,
it won't let you go around.
moreover,
a vein can be g many times,
that's where it's a little scary
although the place is large,
the mines are relatively concentrated,
it won't let you go around.
moreover,
a vein can be g many times,
that's where it's a little scary
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