科普：矿工和全节点的区别

In the field of cryptocurrency, miners and all nodes are two vital entities, which play an important role in maintaining the integrity, security and functionality of blockchain network. Although many people often confuse the two, their functions are significantly different, so it is very important for people to understand these differences deeply. What are miners in the field of cryptocurrency? Miners can be compared with gold miners in the real world. They screen and look for them on vast land. Rare and valuable gold nuggets, similarly, miners get the right to block through workload proof, add new blocks to the blockchain and get a considerable reward at the same time. Miners play a key role in the blockchain network. They are responsible for verifying new transactions and recording them in the global distributed ledger, that is, the blockchain. It should be emphasized that miners are a kind of all nodes, which means that they will verify all the rules of the blockchain and only accept the block mining process that meets these rules, including verifying transactions and creating blocks. And generate workload proof. Effectively generating workload proof means finding a hash output that meets the specific conditions stipulated in the agreement, also called hash output. The following are simplified steps for miners to generate workload proof. Transaction verification miners select transactions from the unconfirmed transaction set in the memory pool and verify their validity. Block creation of verified transactions is combined with the hash value of the previous block and a new random number to construct a candidate block hash processing or other commonly used hash algorithm pairs. The candidate blocks are hashed to generate a hash value in the form of a fixed-length string. The difficulty check compares the generated hash value with the current mining difficulty target of the agreement. If it is less than the target value, a new block is successfully dug. If it is not less than the target value, miners will change the random number and repeat the hashing process until they find a hash value that meets the target. For this reason, miners use mining hardware or special mining machines that can handle trillions of hash calculations per second to try to find a target as soon as possible. Once a valid hash value is found, miners will submit a new block to the network, and other nodes will verify the block and add it to the blockchain. The miners who submit the block will get a certain amount of cryptocurrency rewards. Finding an effective hash value requires a lot of work, a lot of computing power and energy consumption. This work can be verified by anyone at any time, so it is called workload proof. One of the biggest misunderstandings about miners is that it is earning. In fact, this process is resource-intensive and requires advanced hardware technical knowledge and a lot of electricity. In addition, the competition among miners is fierce, and the profit space is constantly squeezed. What is the whole node? Although all miners are all nodes, not all nodes are miners and miners are producers of the block, while all nodes are librarians of the blockchain network. All nodes maintain a complete copy of the blockchain to ensure that every transaction conforms to the network rules. They verify transactions. And the legitimacy of the block, refusing to violate the rules of trading and block non-mining, the whole node does not create new blocks, but it plays an important role in maintaining the integrity of the network. They check the work of miners to ensure that the rules of network consensus are observed. Although the whole node plays a vital role, it is often misunderstood. Many people think that running the whole node needs to be rewarded, which is similar to mining, but unlike miners, the work of the whole node operators is not directly rewarded. They help maintain the decentralization and. The contribution of security to the network is selfless to a great extent. Some people think that the whole node is an unprivileged participant in the network, and the miners' production cost is high, while the whole node is the supporter of the blockchain. The miners' union with more computing power than the whole network can choose to produce blocks that break the network consensus rules, but the risk of doing so is that the stakeholders of the blockchain will basically reject these blocks, so that those miners will not get any return. The balance between nodes is also very important. The network dominated by miners may become centralized and destroy the decentralized characteristics of blockchain technology. Conversely, the network with too few miners may reduce security because it is more vulnerable to attacks, that is, a single entity or alliance controls most of the mining capacity of the network and can maliciously manipulate the blockchain. In a word, it is very important for anyone who participates in the cryptocurrency world to understand the difference between miners and all nodes, although they play different roles. The miners are indispensable to the security and integrity of the blockchain network. With their powerful computing power, they add new transactions to the blockchain, and all nodes maintain the integrity of the network by verifying these transactions. Together, they ensure the smooth operation of the blockchain network. 比特币今日价格行情网_okx交易所app_永续合约_比特币怎么买卖交易_虚拟币交易所平台

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