Explanation of blockchain node terms

1. Nodes are the places where the blocks are connected, and the blocks need to be chained to be useful
core analysis:
1. Transparency, 2. Openness, 3. Information can not be tampered with, 4. Decentralization,
5. Detailed analysis
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
1. In a narrow sense, blockchain is a kind of chained data structure composed of data blocks connected in sequence according to the time sequence, and it can not be tampered with and forged by cryptography
2. Broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing method to program and operate data by using intelligent contract composed of automated script code.

2. In short, it is an important concept of bitcoin

3. A lot of network, or in a group said easy to understand. Teach you to understand with mathematical knowledge (node is a point, block is a line, and blockchain is a surface). Node is the basic unit of information processing in blockchain application technology. After processing information, many nodes will be timestamped, generate data blocks, and connect blocks in time sequence to form blockchain.

4. It contains complete blockchain and network routing nodes, which are only used to synchronize blocks, participate in verification, and maintain connection with peer nodes.

5. It's a public list of all the transactions that have been sent. It ensures that everyone knows the real owner (address) of each bitcoin. All full function nodes on the network will keep a of the blockchain< Br > block is an independent unit in the blockchain. Each block contains the hash value of the previous block (so it is impossible for someone to delete or modify any block on the blockchain without making some hash values on the blockchain mismatched), as well as as as many unconfirmed transactions that can be found on the network, and a number called nonce random number. Someone who is creating a block must find a suitable nonce random number so that the hash value of the block is lower than a certain threshold (the target value). This can only be done by trying all the random numbers one after another until a random number with the desired hash value is found. The lower the target value is, the more difficult it is to find a suitable random number. Deliberately making block creation so difficult is to prevent someone from spending bitcoin, and then create and promote his own blockchain that does not include the transaction that shows that bitcoin has been spent just now, erase the transaction record once and allow him to spend bitcoin twice. When a valid block is created, it will be distributed to the whole network, and then search for the next block based on this block.

6. 1. Utility token

utility token is a utility token that acts as a right to use a specific service

examples of terminology usage

utility tokens are premised on the use of services

detailed description

you can settle the price of goods and meals instead of cash, and you can access it by having cloud storage. For utility tokens, there is no need to audit the classification of the report

6, public chain

public chain is a highly "public" blockchain, anyone can freely participate in the network

example of terminology usage

as an infrastructure project for mediating data exchange between blockchains, a mechanism for data exchange on public blockchains will be established

detailed description

in the blockchain used to record the transaction information of encrypted assets (virtual currency), this is a mechanism used by an unspecified number of participants to establish transaction information by consensus without a specific management entity. It is very safe to prevent forgery of transaction information, but it requires a lot of calculation, so its disadvantage is that it takes a long time to complete the transaction when there are many participants

7. Scalability

scalability refers to the scalability of delayed transaction processing

examples of terminology usage

soaring gasoline prices highlight Ethereum's scalability issues

detailed description

e to the nature of blockchain and the limited amount of transaction data that can be written in a block, the processing is delayed. Remittances can take a long time, which can lead to higher transaction costs. Bitcoin is the first cryptocurrency born, which has been considered as a special problem, but efforts to solve this problem have been implemented, such as using other technologies such as lightning network and developing new blockchain

8. Gas cost

gas cost is the (Network) transaction cost on Ethereum blockchain

examples of terminology usage

this week, on the Ethereum blockchain, although there are a small amount of remittances, there are still many cases of high natural gas bills being paid

detailed description

the gas fee of user specified amount is the secondary reward. Eth, the virtual currency, is used for payment. Since the transaction with higher cost should be dealt with first, the gas cost may increase with the increase of transaction number

9. Liquidity mining (liquidity mining)

considering the provision of liquidity (currency pair), liquidity mining is to grant governance token in addition to interest, so as to attract those who implement the rate of return balance

examples of terminology usage

detailed description

in liquidity mining, by storing specific assets in the liquidity pool and providing liquidity that traders can buy and sell, the swap fee at that time can be obtained as income. These liquidity mining originated from the largest decentralized exchange "uniswap", and many liquidity mining contracts were born, such as curve finance and balancer

10. Defi (distributed Finance)

defi (decentralized Finance) refers to the financial services or systems that use blockchain and provide without a central administrator

examples of terminology usage

since June 2020, the market of defi has developed rapidly

specify the abbreviation of "decentralized finance". The financial services offered by defi include the issuance of stable coins, lending currency and cryptocurrency exchanges. Many platforms use Ethereum blockchain

11. POS (proof of equity)

POS is a consensus algorithm, which allows you to approve and generate new block rights according to the percentage (equity) of your own virtual currency

According to vitalik buterin, co-founder of Ethereum, migrating eth's consensus algorithm from POW to POS will improve security and scalability

specify the abbreviation of

proof of interest. We can also consider the holding period of virtual currency. It was born as an alternative to the "proof of work (POW)" consensus algorithm, which requires high-performance computers to approve transactions and consumes a lot of energy. If approved, you can receive a new virtual currency as a reward

12. Dapps

DAPP is an application developed with open source blockchain

examples of terminology usage

Galaxy store, the largest Samsung Electronics app store in South Korea, has started to use Tron's blockchain to process dapps

detailed description

the abbreviation of "distributed application" is called "distributed application" in Japanese. One of the main features is that there is no centralized administrator. The most popular is Ethereum blockchain, which is developing applications such as games and decentralized exchange (DEX)