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This article mainly introduces "what is the meaning of the node in the blockchain". In the daily operation, I believe that many people have doubts about the meaning of the node in the blockchain. The editor consulted all kinds of materials and sorted out a simple and useful method of operation. I hope it will be helpful for you to answer the doubt of "what is the meaning of the node in the blockchain?" Next, please follow the editor to study!

Nodes refer to the computers in the blockchain network, including mobile phones, mining machines, servers, and so on. A block chain with the participation of a large number of individual or family users, each individual or family is a node of the block chain. Let's take Bitcoin as an example to explain what a node means.

As we all know, Bitcoin is designed as a decentralized peer-to-peer (P2P) network, and we need a huge number of machines to maintain this global network. To confirm the validity of the transaction, for example, Bitcoin requires more than a separate network of miners to process the transaction order, which must be broadcast to the network through a "node". This is the first step in the transaction processing process (blockchain confirmation).

Blockchain is a distributed system in which there are many nodes that you can simply understand as computers or servers connected through the Internet. Then, according to the nature of the block chain, the way to become a node is also different, of course, the definition of the node is also different. For a public chain like Bitcoin, in theory, you download the complete blockchain, participate in trading and mining, and that's the node.

However, in today's Bitcoin, miners, full nodes, lightweight nodes, and even ordinary users may be called nodes in different contexts. But in any case, Bitcoin's system is not so much "automatically update the blockchain when connected to the network" as if you want to dig a mine or trade a foreign exchange order www.gendan5.com (and you don't trust the verification results of others), you have to update the entire blockchain, which is not an automatic obligation, but a voluntary one.

The nodes of the blockchain have several characteristics:

First, have a certain amount of storage space

Storage space refers to electronic storage space, including daily TF cards, USB drives, removable hard drives and computers.

Second, connect to the network

Devices that need storage space are connected to the network through a network cable.

Third, visual operation terminal

Mobile phone, iPad and computer are the mainstream visual operation terminals at present.

IV. Participating block chain

It is necessary to run the corresponding program of the block chain in the storage space connected to the network, and trade through the visual shameful terminal.

What is the basic task of a node?

When the miner or user tries to add a new transaction block to the block chain through some mechanism of the protocol, it transmits the block to all nodes of the network. Depending on the validity of the block (signature and validity of the transaction), the node can accept or reject the block. When a node accepts a new transaction block, it saves it and stores it on other blocks that it has already stored. To sum up, the roles of nodes are:

They can check whether a transaction block is valid and accept or reject it. Store and store transaction blocks (store block chain transaction history). Transfer and extend this transaction history to other nodes that may need to be synchronized with the blockchain (they must be updated in the transaction history).

At this point, the study of "what is the meaning of the nodes in the block chain" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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