区块链矿工是什么,区块链矿工的主要工作是什么?
区块链矿工是什么?简单来说,区块链矿工就是一种参与区块链网络的节点,它们通过运行特定的软件和硬件来确认和验证区块链上的交易,以获得报酬。
区块链矿工的主要工作是什么?主要工作就是确认和验证区块链上的交易,并获得报酬。矿工需要把交易信息收集起来,然后用特定的软件和硬件来确认和验证这些交易,最终形成一个新的区块,并将其加入到区块链网络中。矿工的工作将获得报酬,这种报酬通常是形式为加密货币的奖励。
挖矿:挖矿是指矿工通过使用特定的软件和硬件来确认和验证区块链上的交易,以获得报酬的过程。挖矿是一个复杂的过程,需要大量的计算能力和算力。矿工需要把交易信息收集起来,然后使用特定的软件和硬件来确认和验证这些交易,最终形成一个新的区块,并将其加入到区块链网络中。矿工的工作将获得报酬,这种报酬通常是形式为加密货币的奖励。
硬件:硬件是指矿工使用的计算机硬件,用于确认和验证区块链上的交易。硬件可以是一台普通的电脑,也可以是一台专门的矿机,它们都可以用来运行挖矿软件,以确认和验证区块链上的交易。矿机是一种专门用于挖矿的硬件,它们能够比普通电脑更快地运行挖矿软件,从而更快地确认和验证交易。
报酬:报酬是指矿工在确认和验证区块链上的交易后,获得的奖励。报酬通常是形式为加密货币的奖励,如比特币、以太坊等。报酬的数量取决于矿工的算力,算力越大,报酬也就越多。此外,报酬还可以通过投票系统来调整,以确保矿工的收入稳定。
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A. What does cryptocurrency mining mean?
The so-called cryptocurrency mining refers to the process in which miners obtain cryptocurrency with the help of mining tools and mining machines.
1. Bitcoin BTC (Blockchain 1.0)
Bitcoin has emerged as a new type of digital currency and global payment network since its birth in 2009. BTC is also the most successful and mature application of blockchain. , now in many situations, BTC is much more famous than blockchain.
2. What is a miner:
In cryptocurrency networks such as Bitcoin, competitive calculations can obtain new Bitcoin rewards, much like the process of mining minerals buried underground, which is vividly called "mining" "Miners", people or organizations competing for mining are called "miners".
3. What is computing power:
It can be simply understood as computing power. Miners obtain Bitcoin by providing "computing services" through competition in "computing power". The "computing service" actually calculates the hash value of the block header through a hash algorithm. In the process of obtaining Bitcoin through the "computing service", we need to find its corresponding solution, that is, the block header hash value. To find the solution, there is no fixed algorithm and can only rely on random hash collisions by the computer. The number of hash collisions a computer server can do per second is the representative of its "computing power", and the unit is written as hash/s.
4. What is proof of work:
The English name is POW, a consensus mechanism of "more work, more gain". Bitcoin is a typical POW mechanism. After miners obtain computing power, the first one to calculate the correct answer will be recorded as "workload". This workload will be recorded in a one-page ledger and then synchronized to others to prove that the miner has put in the workload.
5. What is Proof of Stake:
The English name is POS, a consensus mechanism that “the more you hold, the more you get”. This consensus mechanism determines the size of the rights based on the number of tokens held by token holders, thereby competing for accounting rights. The more tokens you hold and the greater your equity, the greater the probability of becoming the next bookkeeper. This mechanism shortens the time to reach consensus under certain circumstances and no longer requires a large amount of energy mining
B. What is blockchain mining and how is blockchain mining
What is blockchain mining? How does blockchain mine?
Before the rise of blockchain, miners specifically referred to workers who dug coal mines. The collective impression was that they were covered in coal dust. Apart from their clothes, they are all dark-skinned men. 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. Every transaction is not completed after it occurs, 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. You can just buy a special mining equipment and start mining. Mining does not require you to do it yourself. The computer actually performs specific calculations. For miners, it is enough to ensure the power supply and network connection of the mining machine.
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 a lot of 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.
C. 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. digMining 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.
D. What is ICBC blockchain mining?
Assuming that you understand the basics of blockchain, to put it simply, blockchain (Blockchain) A new block (block) is generated every ten minutes to store all transaction information on this blockchain for these ten minutes. This block is equivalent to a network account book, which correctly timestamps all network transactions for these ten minutes. The question is who will cover it? The "miners" on the blockchain compete for the accounting rights of each block in ten minutes. The rule of competition is to correctly record the accounting while solving the SHA256 problem. Whoever can prove that his computer has the fastest computing power will win. Being able to compete for the legal accounting rights of these ten-minute blocks is the "mining" process. In the Bitcoin blockchain, miners who mine a mine can be rewarded with a certain number of Bitcoins. Therefore, the more essential function of miners is "bookkeepers"
In his Bitcoin white paper, Satoshi Nakamoto described the process of establishing this credit system in more detail:
First Step: In order for the entire network to recognize that each transaction is valid, it must be broadcast to each node (node: that is, the miner);
Step 2: Each miner node must correctly give these ten minutes Each transaction is stamped with a timestamp and recorded in that block;
Step 3: Each miner node must solve the SHA256 puzzle to compete for the legal accounting of this ten-minute block Right, and strive to get a reward of twenty-five Bitcoins (fifty Bitcoins every ten minutes for the first four years, decreasing by half every four years);
Step 4:If a miner node solves the ten-minute SHA256 puzzle, it will publish all timestamped transactions recorded in its ten-minute block to the entire network, and they will be checked by other miner nodes in the entire network;
Step 5: Other miner nodes in the entire network check the correctness of the block accounting (because they are also stamping the accounting at the same time, but they have not competed for the legal block accounting rights, so there is no reward). If there is no error, they The next block will be competed after the legal block, thus forming a single chain of legal accounting blocks, which is the general ledger of the Bitcoin payment system - the blockchain.
Generally speaking, each transaction must undergo six block confirmations, that is, six ten-minute accounting, before it can finally be recognized as a legal transaction on the blockchain. The following is the accounting format of Bitcoin:
So the so-called "Bitcoin" is such a billing system: it includes the owner electronically signing with the private key and paying to the next owner, and then the entire The "miners" of the network stamp the timestamps and record the accounts, forming a blockchain. (Internet)
If you want to learn more about blockchain information, it is recommended that you use Baijiahao, Mustard Circle and other popular b-circle media. The amount of information and richness are better than in general. There is more and better on the web. If you want to ask a technical question, you can take a look at the link below, I hope it can help you
Web link
E. What is blockchain mining and what does it do? Detailed introduction to blockchain and virtual currency
When Bitcoin was first released, people discovered that it was decentralized and not subject to any central control; it was completely open, except for the encryption of transaction information, the entire system information Highly transparent, 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. The distributed ledgers connected by blockchain technology can effectively record transactions between two parties, and can permanently verify this 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 cannot beInverse
It is difficult to find two different x and y such that h(x) = h(y), that is to say, two different inputs will have different outputs. 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 likened 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 make a transaction, you first need an account number and password. Just like your bank card has an account number and password, others can make a transfer to you. 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
It is proved 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
The verification is that Lao Wang himself issued the 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. Zhang San will increase it by 10 BTC, and Lao Wang will decrease it by 10 BTC accordingly. The entire operation is automatic, such as your wallet The app will help you do this. The app knows your private key, you tell the wallet the transaction content, the wallet signature is announced to the entire network, and it waits for others to verify the transaction
Centralized accounting The efficiency will be higher. Banks, governments or Alipay will keep accounts for you, which is very reliable, because they can't touch your money unless they have your private key
There are some disadvantages in centralized accounting< /p>
In decentralization, everyone can keep accounts, and everyone can keep aA 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 p>
A transaction is not completed when 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 just an average value
Due to the characteristics of decentralized accounting, accounting nodes with accounting rights will receive a 50BTC reward every ten minutes, which is about the same for every 210,000 blocks. In 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 4 years, the total number of BTC can be calculated. The amount is approximately 21 million, and it is 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 + Transactions in the transaction pool) 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 mining. It’s called a miner. The faster you traverse random numbers, the greater the possibility of getting 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 moreHigh computing power mining machine
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. The distributed ledgers connected by blockchain technology can effectively record transactions between two parties, and can permanently verify this 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 can only be used by ordinary people. Even if you don’t understand it, the most important thing is to look at the problem from a relatively rational perspective. Don’t let the wind be 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.
F. What is the meaning of mining in digital currency
It means to generate digital currency
Generally, digital currency is similar to Bitcoin, and its generated quantity is fixed. A portion of Bitcoin is generated through mining at regular intervals. Because the number of Bitcoins is limited, the value of Bitcoins has also increased all the way.
G. 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 derived from existing concepts in our real economic life, such as gold mining, silver mining, etc. Because minerals are valuable, people are driven to pay labor to mine them.
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.
(7) Extended reading on the meaning of blockchain miners
The monetary characteristics of Bitcoin
1. Decentralization
Bitcoin is the first distributed virtual currency. 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.
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