About blockchain segments
Blockchain is an important concept of bitcoin. It is essentially a disintermediated database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it can not be tampered with and forged by cryptography
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
extended data:
the evolution mode of blockchain is as follows:
& 9642; Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0 - Implementation of distributed applications in various instries
blockchain features:
1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system
2. Openness. The system is open. In addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all. Anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
3. Autonomy. Blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work
The information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid. Therefore, the data stability and reliability of the blockchain are extremely high5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit
Blockchain is a term in the field of information technology. In essence, it is a shared database. The data or information stored in it is characterized by "unforgeability", "trace in the whole process", "traceability", "openness and transparency" and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects
on January 10, 2019, the state Internet Information Office issued the regulations on the management of blockchain information services. In October 24, 2019, ring the eighteenth collective learning of the Central Political Bureau, general secretary Xi Jinping stressed that "block chain as an important breakthrough in core technology and independent innovation", "accelerating the development of block chain technology and instrial innovation". "Blockchain" has entered the public field of vision and become the focus of social attention
on December 2, 2019, the word was selected into the top ten catchwords of "biting words" in 2019
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Application of blockchain Finance:
since 2016, the major financial giants have also carried out blockchain innovation projects to explore the possibility of applying blockchain Technology in various financial scenarios. In particular, Puyin group took the lead in creating a "blockchain +" standard digital currency
standard digital currency refers to the process of assets identification, evaluation, right confirmation and insurance completed by a third party organization, which is written into the blockchain through careful digital algorithm to form the standard corresponding relationship between assets and digital currency, which is called standard digital currency
in order to realize the great leap forward development of blockchain finance, promote the new development of China's economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that has been struggling for generations, Puyin group will hold the Guiyang strategic development ceremony of Puyin blockchain finance in Guizhou on December 9, 2016
the meeting will discuss the realization of digital circulation of assets by blockchain, the financial transaction mode of blockchain, and the application of blockchain services and social public instry. This conference will mark the beginning of the application of blockchain finance and the change and development of the new financial ecology
Blockchain is on fire! It's so hot that I have no friends! In recent days, it has been swished by various popular science jokes of blockchain, just like crowdfunding, equity and original stocks in the past two years. If you go out and chat with others, you will be embarrassed to chat with others if you don't talk about blockchain. Textbook like explanation: an intelligent peer-to-peer network that uses distributed database to identify, disseminate and record information. It is a distributed database system with different nodes and an open ledger
the concept of "after the rules are settled, everyone will register spontaneously" in wechat organization corresponds to the concept of "decentralization, no single user can control it" in the blockchain. "Registration in wechat group" in wechat group corresponds to the concept of "peer-to-peer network" in blockchain. "As long as the network is connected, we can know the latest progress" in wechat organization Bureau, corresponding to the concept in blockchain, namely "game mechanism"
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
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. Scalabilityscalability 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 costgas 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 scalabilityspecify 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. DappsDAPP 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)