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A. Can anyone tell me whether you will lose money in blockchain transaction mining?

Losing money is possible under any circumstances. There is no such thing in this world. Investments that are 100% sure to make money.

With the rise in the price of Bitcoin, the mining industry has become a veritable "gold mine". The large influx of newcomers and retail investors has made the Bitcoin market

Coin mining machines are hard to come by.

It is precisely in the face of such a market that the price of Bitcoin mining machines has also begun to rise. Not only that, because the number of Bitcoins is becoming increasingly scarce

, so mining The difficulty is getting bigger and bigger, and now the production capacity of Bitcoin mining will gradually decrease.

When the revenue of the mining machine is not enough to pay for the electricity consumed, the currency price at this time is called the "shutdown currency price". The influencing factors include currency price, electricity consumption

price, mining Mining difficulty, etc., if the currency price falls below the "shutdown currency price", miners need to shut down the mining machine, otherwise they will lose money.

So, any industry has certain risks, and only when you devote yourself to this industry, that is, after you have a deep understanding

, will you know There are risks involved, and you need to bear these risks before you can continue to develop in this industry.

Blockchain mining:

In 2009, Satoshi Nakamoto invented Bitcoin and set a limit of 21 million Bitcoins. In the Bitcoin network, by participating in the production of blocks and providing proof of work (PoW), you can obtain rewards from the Bitcoin network. This process is mining.

The concept of "mining" is taken from the existing concepts in our real economic life, such as gold mining, silver mining, etc., because minerals are valuable

That’s why people are driven to pay labor to dig.

Another important point in Bitcoin mining is that the miners participating in mining recognize the value of Bitcoin, and there are people in the market who are willing to mine the Bitcoin market

Spend money. So, Bitcoin mining makes sense.

B. What does blockchain mining mean?

In 2009, Satoshi Nakamoto invented Bitcoin and set a limit of only 21 million Bitcoins, which were added to the Bitcoin network. , by participating in the production of blocks and providing proof of work (PoW), you can obtain rewards from the Bitcoin network. This process is mining.

The concept of "mining" is taken from the existing concepts in our real economic life, such as gold mining, silver mining, etc. Because minerals are valuable, people are driven to pay labor force. dig.

Another important point of Bitcoin mining is that the miners participating in mining recognize the value of Bitcoin, and there are people in the market who are willing to spend money on the Bitcoins they mine. So, Bitcoin mining makes sense.

(2) E-commerce blockchain mining extended reading

Bitcoin’s currency characteristics

1. Decentralization

Bitcoin is the first It is a distributed virtual currency where the entire network is composed of users and there is no central bank. Decentralization is the guarantee of Bitcoin’s security and freedom.

2. Circulation around the world

Bitcoin can be managed on any computer connected to the Internet. Anyone can mine, buy, sell or receive Bitcoin regardless of location.

3. Exclusive ownership

Manipulating Bitcoin requires a private key, which can be isolated and stored in any storage medium. No one can obtain it except the user himself.

4. Low transaction fees

Bitcoins can be remitted for free, but a transaction fee of about 1 bit cent will ultimately be charged for each transaction to ensure faster transaction execution.

5. No hidden costs

As a means of payment from A to B, Bitcoin does not have cumbersome limits and procedures. You can make the payment by knowing the other party's Bitcoin address.

6. Cross-platform mining

Users can explore the computing capabilities of different hardware on many platforms.

C. How to make money by mining in the blockchain

The principle of making money by mining: PoW and mining.

In the beginning, Bitcoin could be mined using graphics cards, but in 2013, it was no longer possible to mine Bitcoin BTC using general-purpose computing programs for graphics cards. Bitcoins are now all mined using ASIC mining machines. ".

Similarly, the launch of Litecoin ASIC mining machines in 2014 also ended the history of Litecoin mining using graphics cards. The current digital currencies that graphics cards can "mine" are Ethereum ETH, Ethereum Classic ETC, and Zcash Zerocoin ZEC.

Graphics card "mining" is not a profitable business. In fact, the earlier you start, the higher the income will be, and the income will decrease as more miners and graphics cards are added.

To put it bluntly, buying a high-priced graphics card to enter "mining" will definitely kill you. Purchasing a professional mining machine is a more cost-effective choice. Nowadays, the essential tool for personal mining is a mining pool. The function of a mining pool is to gather a large number of mining machine computing power to increase your chances of mining coins. At the same time, the coins you can mine in the future are evenly distributed to your account in advance.

Take Bitcoin as an example. If the entire Bitcoin network now generates a block every 10 minutes, this block contains 25 Bitcoins. Assuming that there are 10,000 people in the world participating in mining, then within these 10 minutes, only one lucky person will take away the 25 Bitcoins.

Others have nothing to gain. The principle of the mining pool is that everyone teams up to mine and allocate it according to the agreed distribution method, so that the miners' mining returns tend to be stable and the miners' risks are reduced.risk.

In order to enhance the cost performance, you can also purchase some practical mining machines like Wanke Cloud, which can be used as ordinary hardware products and can also be used for mining, killing two birds with one stone.

(3) Extended reading on e-commerce blockchain mining

There are several core operations of blockchain transactions and digital currencies:

The transaction network connected by decentralized databases is called the blockchain. All our clients (including mining machines) keep accounts together, confirm transfer transactions, and issue a certain amount of digital currency according to time.

Because the winner takes all, small and medium-sized retail miners have to unite to form a "mining pool" and record the cumulative workload in Shares. The higher the joint computing power, the greater the probability that the mining pool consortium will find the digital currency first. Large, increase the probability of finding newly issued digital currencies, and divide the mined digital currencies. This is called the PoW workload proof mechanism.

D. Ranking of the top ten blockchain mining apps

The ranking of mobile mining apps is as follows:

1. ETH mobile mining. ETH mobile mining is a software that allows you to make money through mobile mining. Users can trade with confidence in this software. All transaction information is open and transparent, and the latest monetary policies can be seen every day.

2. HBC environmental protection chain. HBC Environmental Chain is a very easy-to-use investment and financial management app. Users can redeem environmental coins by completing mining tasks, and the mining gameplay provided here is very simple.

3. Fire brush horizon mining. Fire Brush Vision is a brand new blockchain money-making platform, where users can directly receive tasks and complete tasks to obtain rewards. There is no need to invest or energy, and they only need to use their spare time to purchase mining machines. That's it.

4. ABEL trading platform. A professional mobile phone mining software, users can easily obtain a variety of digital currencies here, and can also conduct various digital currency transactions here at any time.

5. Secoin Star Ecology. A very easy-to-use mobile mining software that provides users with a very convenient and easy-to-use mining machine. They only need to use some daily rest time to obtain a variety of digital currencies.

Mobile mining is very simple. Just download the APP and register an account. The ways to obtain rewards are similar. If you want to use this mobile mining APP and increase your computing power, you must use facial recognition, Alipay, and Taobao authorization. , Xuexin.com authorization, operator authorization, JD authorization, binding GXS wallet, backup wallet, inviting friends, and checking in online every day.

Possible disadvantages of mobile phone mining:

1. Stealing user privacy. Some apps pretend to be mining, but are actually collecting user information and C-side traffic, which may cause problems such as user information leakage.

2. Greatly shorten the life of mobile phones. For mobile phones with mining systems installed, the App quickly drains the battery, generates excessive heat, or causes damage to the device.Put unnecessary pressure on preparedness resources.

3. The most important thing is that mobile phone mining is actually mining for candy, and mainstream coins cannot be mined. It is difficult to mine mainstream currencies with mobile phones. Nowadays, mainstream currencies such as Bitcoin and Ethereum cannot be mined with the computing power of mobile phones.

E. What conditions are required for mining in blockchain technology

Miners need to configure mining machines. There are two ways to configure mining machines:
The first one The way is to configure cutting-edge mining machines to gain performance advantages in the guessing game. The advantages of new mining machines are high computing power, low power consumption, high gross profit, and low shutdown price; the disadvantage of new mining machines is high fixed costs and the need to fill in the pits of this cycle first. Novice mining machines are suitable for new mining machines. The second way is to configure second-hand old-model mining machines at a low price. The advantage of old-model mining machines is that they are low-priced and can easily reach the return line; the disadvantages of old-model mining machines are that their performance is relatively poor and their life cycle is short. Veterans often play with older models of mining rigs.

F. What does blockchain mining mean?

“Mining”, as the name suggests, is the action that can appear in our minds, which is digging in the soil with a shovel, but now We no longer use shovels, but computers. Instead of digging in the soil, we dig in a pool of data, and instead of digging for physical objects like gold and coal, we compete for the right to keep accounts. 1. Mining is the process of confirming transactions in the Bitcoin system over a period of time and recording the formation of new blocks on the blockchain. These miners are called miners. 2. Mining is a bookkeeping process, miners are bookkeepers, and the blockchain is the general ledger. 3. The accounting rights of the Bitcoin system are decentralized, that is, every miner has accounting rights. Miners who successfully seize the accounting rights will receive new Bitcoin rewards from the system. Mining is the process of producing Bitcoins.

1. What does mining mean?

Ancient mining can be traced back to the selection of stone materials in the Stone Age. Later, with the rise of the metallurgical industry, mining and mineral processing technology gradually developed. This article introduces the aspects of open-pit mining, underground mining, tunnel support, rock crushing, tunnel ventilation, lighting, drainage, lifting and mineral processing in ancient China.

Open-pit mining There are many surface outcrops, slopes or residual deposits of various metal veins or ore bodies. Therefore, open-pit mining became an important mining method in ancient times. Open-pit mining can be divided into excavation method and soil reclamation method.

2. Mining is the name for accumulated income from activities in Bitcoin.

Mining was brought about by the recent popularity of Bitcoin. Bitcoin is a virtual currency that can be exchanged for real currency. One of the ways to obtain Bitcoins on the Internet is to participate in related activities every day. These activities, like mining in online games, require slowly accumulating wealth in exchange for Bitcoins.

G. What is blockchain mining and what does it do? Detailed introduction to blockchain and virtual currency

When Bitcoin was first issued, people discovered It is decentralized and not subject to any central control; it is completely open, except for the encryption of transaction information.The information of the entire system is highly transparent, and the technology is all open source; security, as long as you cannot control %51 of all nodes, you cannot modify the data arbitrarily, which makes it relatively safe; independence, the entire model and Bitcoin do not rely on any third party. All nodes verify and exchange data within the system without any intervention

Here we explain in detail what blockchain technology is. To put it bluntly, it is block + chain. So what is a "block"? What is a "chain" again?

A block is a ledger. Transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account, so they can all participate in supervising the legality of the transaction, and at the same time Can jointly testify for it

Each block contains the cryptographic hash of the previous block, the corresponding timestamp, and the transaction data (usually a hash value calculated using the Merkle tree algorithm) represents), this design makes the block content difficult to tamper with. Distributed ledgers connected by blockchain technology can effectively record transactions between two parties and permanently verify the transaction.

The function of the hash function h(): convert a string of any length into a fixed-length (for example, 256 bits) output. The output is also called a hash value. This output is irreversible

It is difficult to find two different x and y such that h(x) = h(y), that is, two different inputs, There will be different output. Theoretically, two different inputs may have different outputs, but this is almost impossible. For example, if an infinite space is mapped to a finite space, there must be a many-to-one situation. The theory exists, but there are no rules. It is guaranteed that you cannot find this result through any mathematical inference. Why is it 256 bits here? Isn't it longer? Because 256 bits are secure enough.

Split the ledger into blocks. For example, a piece of paper in a book is a block. Each block records transactions within a period of time, such as 10 minutes.

We divide Each piece of paper is compared to a block. A part of content is added to each block. We call it a block header, which records the hash value of the parent block. Each block stores the hash value of the parent block. , connect all blocks smoothly to form a blockchain

Record the hash value of block 1 to the block header of block 2. In this way, the block header of each block is recorded The hash value of the parent block, each block is linked in order, this is called a blockchain. The first block has no block header and is also called the genesis block

The blockchain is a ledger. Only when transactions occur in the ledger will the money in your account increase. If you need to conduct transactions, you first need an account number and password. Just like your bank card has an account number and password, others can use it on you.To make a transfer, the account password on the block ledger is the public key and private key

Lao Wang (who already has a private key and a public key) wants to transfer 10 BTC to Zhang, which requires some operations

Prove that Lao Wang himself issued the transfer signature function Sign (Lao Wang’s private key + transfer information: Lao Wang transferred 10 BTC to Zhang San) = signature of this special account
Verify that Lao Wang himself issued it Transfer verification function Verify (Lao Wang’s address + transfer details: Lao Wang transferred 10 BTC to Zhang San + signature of this transfer) = true
Once the transfer is recorded in the block, no one can change it, and Zhang San increases by 10 BTC, Lao Wang will reduce it by 10 BTC accordingly. The entire operation is automatic. For example, your wallet app will help you do this. The app knows your private key, you tell the wallet the transaction content, and the wallet signature is sent to the entire network. Announce it and wait for others to verify the transaction

Centralized accounting will be more efficient. Banks, governments or Alipay will keep accounts for you, which is very reliable, because they cannot touch your money unless They have your private key

There are some shortcomings in centralized accounting

In decentralization, everyone can keep accounts, and everyone can keep a complete ledger. Anyone can download open source programs, participate in Bitcoin's p2p network, monitor transactions sent from all over the world, become an accounting node, and participate in accounting. Suppose Xiaoyi releases a transaction and broadcasts it to the entire network, and accounting node A listens. When this transaction arrives, A verifies that the transaction bit is true and puts it into the transaction pool to continue to spread to other nodes. Because it is spread through the network, the transaction pools of different accounting nodes are not necessarily the same at the same time. Every 10 minutes, from all accounting nodes Among the nodes, select one according to a certain method. After verifying that the transaction of this node is true, then compare the transaction records in the transaction pool of this selected node with the transaction records in the transaction pool of your own (A) node. The comparison is completed. After that, the transactions recorded by the selected accounting nodes will be deleted from the transaction pool, and the other accounting nodes will continue to record and wait for the next selection. There is a cycle every 10 minutes. During this 10 minutes, all accounting nodes will record accounts normally. , 10 minutes later, a node will be selected to use the transactions in its transaction pool as a new block. This block comes from the transaction pool of an accounting node I randomly selected among all the accounting nodes, and the cycle continues

A transaction is not completed once it is recorded. Only when the transaction becomes a certain block, the transaction is truly completed. This is a complete accounting process of decentralization. Your transaction will not be recorded immediately because the p2p network propagation takes time. If the node of the selected block has not received your transaction, the transaction will be not done. A block is generated every 10 minutes, but not all transactions within 10 minutes can be recorded. 10 minutes is justAn average value

Characteristics of decentralized accounting, accounting nodes with accounting rights, the selected node will receive a 50BTC reward every ten minutes, every 210,000 blocks for almost 4 years, The reward is halved. Bitcoin has been halved twice since its issuance. Then a new block is generated every ten minutes. The reward for this accounting node is 10.5 BTC. If it is halved every four years, the total amount of BTC can be calculated as approximately 21 million coins are expected to be mined in 2040. Recording the reward of a block is also the only way to issue Bitcoin. When BTC is mined, the only income that the accounting node can obtain is the transaction fee

Accounting nodes compete for accounting rights through questions,

Find a certain random number that makes the equation invalid
SHA256 hash function (random number + parent block hash value + transaction pool transaction) a certain specified value)
There is no other solution except traversing the random numbers starting from 0 and trying luck. The process of solving the problem is also called mining, so the accounting node that solves this problem is also called Miners, the faster you traverse random numbers, the more likely you are to get the accounting rights. This traversal speed is called computing power by mine bosses. In order to obtain this computing power, mine bosses will buy more And the mining machine with higher computing power

Whoever solves the problem correctly first will get the accounting rights. Accounting node A is the first to find the solution, which is announced to the entire network. After other nodes verify that it is correct, node A obtains the block, gains 12.5 BTC, and restarts a new round of calculation after the new block. This method is called (POW) allocating accounting rights

It usually takes about 10 minutes to solve this random number. 10 is not absolute, because the process of solving this problem is a process of luck. In response to changes in computing power in the future, Bitcoin will increase or decrease the difficulty every 2016 blocks, about two weeks, so that the average block generation time is ten minutes

Each block contains The encrypted hash of the previous block, the corresponding timestamp, and the transaction data (usually represented by a hash value calculated by the Merkle tree algorithm) are included. This design makes the block content difficult to tamper with. Distributed ledgers connected by blockchain technology can effectively record transactions between two parties and permanently verify the transaction.

Different from traditional stored data, each node of the blockchain stores complete data according to the block chain structure. Each node of the blockchain is independent and has equal status, relying on The consensus mechanism ensures storage consistency, while traditional distributed storage generally synchronizes data to other backup nodes through a central node.

Mahjong is a traditional Chinese blockchain project. A group of four miners work together. The miner who first collides with the correct hash value of 13 numbers can obtain the accounting rights and be rewarded.

Many people say that blockchain is a scam and Bitcoin is a scam. This may be a scam, but this technology has been widely recognized and applied. The cryptography knowledge involved in blockchain is generally something that you can do if you lend a few brains to you. If you don’t understand, the most important thing is to look at the problem from a relatively rational perspective. Don’t let the wind mean the rain.

There is something incredible about this technology. It maintains absolute order without a center or supervision. This is the trust that only needs to be established by everyone’s consensus. Bitcoin created this consensus, and in the blockchain In the world everyone is fair and equal.

H. How to apply blockchain technology in the e-commerce field

There is already such an application in the world, called g‏ojo‏y. The prospect is very optimistic. Through consumption, you can mine. The model stimulates consumers to shop in this mall. Consumption is investment. Anyway, you can buy wherever you buy. There are also digital assets that can be mined here. The digital assets mined have room for appreciation and can be held or exchanged for money. I only learned about this after listening to the Blockchain Business Revolution on Qianchao. There is a lot of related content in it!

I. What is blockchain mining? How is blockchain mining?

What is blockchain mining? How is blockchain mining?
In Blockchain Before the rise of the chain, miners specifically referred to workers digging coal mines. The collective impression was that they were covered in coal dust and were men with dark skin except for their clothes. After the birth of the blockchain, miner is no longer just the abbreviation of coal miner, but has a new meaning: a person engaged in virtual currency mining.
For those who have not participated in mining, it may be difficult to understand blockchain mining, so today we will start with the most basic question: What is blockchain mining? How to mine blockchain?
What is blockchain mining?
There are two types of mining in the new era, the first is to mine Bitcoin. After each transaction occurs, it is not completed. The transaction data must be written into the database before it is established and the other party can actually receive the money. First, all transaction data will be sent to the miners, who are responsible for writing these transactions into the blockchain and completing mining to obtain profits.
The second type is to dig up copycats. Various “altcoins” such as Zcoin, Monero, Ethereum, Litecoin, and BitShares. After assembling a mining machine, connect to the designated mining pool and start computing at full load according to a specific algorithm. After completing one calculation cycle, you can obtain "one" virtual currency. Then put "this" currency on the online trading platform and cash out.

How to mine blockchain?
In the beginning, Bitcoin could be mined using a computer CPU. The founder of Bitcoin, Satoshi Nakamoto, used his computer CPU to mine it. The world’s first genesis block. However, the era of CPU mining has long passed, and now Bitcoin mining is the era of ASIC mining and large-scale cluster mining.
If you want to become a miner, it is actually relatively simple. Buy a professionalYou can start mining with the mining equipment. You don’t need to do it yourself. The computer actually performs specific calculations. For miners, you only need to ensure the power supply of the mining machine and the network connection.
Can blockchain mining still make money?
In the beginning, some people did get rich through blockchain mining, but as the number of miners increased, there was also great competition among miners. , profit margins are being compressed smaller and smaller. In addition, a machine that mines Bitcoin costs tens of thousands of dollars, and cannot dig out a single coin in a year. The input cost is high and the output is low. If the market conditions are unfavorable again, miners will Basically losing money.

Therefore, in addition to mining, more and more investors choose to invest in foreign exchange to make money. Unlike mining, the investment cost of foreign exchange is extremely low. For example, Juhui ggfx can be traded with a minimum of 8 US dollars. With long and short two-way operations, investors can make profits regardless of whether it is an uptrend or a downtrend. It is also very convenient for people who are busy and want to invest and make money. If you download Juhui ggfx’s MT4 trading software to your mobile phone, you can learn about the latest market conditions and participate in transactions through your mobile phone at any time, and complete orders as quickly as seconds. It is simple and fast. , the efficiency of making money is extremely high, so in addition to mining, this is also a good way to get rich.
Mining is not an easy task. Mining consumes resources because the calculation difficulty of generating virtual currency is very high and it is constantly changing. After every 2016 data blocks are generated globally, mining virtual currency The difficulty of the currency will increase once, so ordinary people must consider all aspects before joining the ranks of miners.