What's true about blockchain

1.

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

extended data:

related extension: blockchain financial application:

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

on June 1, 2020, Xinhua news agency was authorized to broadcast the "overall plan for the construction of Hainan free trade port" issued by the CPC Central Committee and the State Council, which will "actively participate in the formulation of international rules for cross-border data flow, and establish standards and rules for data rights confirmation, data trading, data security and blockchain finance" as one of the key tasks of Hainan free trade port before 2035

2. Blockchain has the following characteristics:
decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

3. Decentralized
e to the use of Distributed Accounting and storage, there is no centralized hardware or management organization, 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
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, and anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
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
information cannot 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, so the data stability and reliability of the blockchain are extremely high<
anonymity
since the exchange between nodes follows a fixed algorithm, their data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective by themselves), so the counterparties do not need to trust themselves by disclosing their identities, which is very helpful for credit accumulation

4.

A: the basic characteristics of blockchain

I. decentralization
blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage

Second, openness

the foundation of blockchain technology is open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

Third, independence

based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

Four, safety

as long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily controlled and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity

unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information transmission can be anonymous

5. Blockchain features: 1. Security: not attacked by any person or entity; 2. No information can be tampered with; 3. Traceable, all nodes in the network can access; 4. Decentralization, no third party. About blockchain messages, you can learn about it in cryptography.

6.

centralized credit creation mode

blockchain puts forward a variety of different consensus mechanisms to help users effectively form bottom-up decisions and participate in major decisions

7.

1. Decentralized

blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

2, openness

blockchain technology is based on open source, in addition to the private information of the parties to the transaction is encrypted, the data of the blockchain is open to everyone, 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, independence

based on consensus specifications and Protocols (similar to the hash algorithm used by bitcoin and other mathematical algorithms), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system, without the intervention of anyone

4. Security

as long as 51% of all data nodes cannot be controlled, network data cannot be arbitrarily controlled and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5, anonymity

unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and information transmission can be carried out anonymously

8. The analysis of jinwowo network technology is as follows:
blockchain can be understood as a public general ledger based on computer program, which can record all transactions on blockchain
each node in the blockchain can update its recorded data to the network, and each node participating in maintenance can a of the complete database, which constitutes a decentralized distributed database.

9. Blockchain has the characteristics of decentralization, non tampering, irreversibility and anonymity
Decentralization: because there is no central ruler in the whole network. The system relies on the fair constraints of multiple participants on the network, so the rights and obligations of every node are equal, and every node will store all the data on the blockchain. Even if the node is damaged or attacked, it will not pose any threat to the account book
tamper proof: ensure that information or contracts cannot be forged. If the account book is in someone's hands, the possibility of fraud is very high, but everyone has an account book. Unless more than 51% of the people in the whole game change an account, any tampering will be invalid, which is also the advantage of collective maintenance and supervision
irreversible: the information on the blockchain must be irreversible and cannot be destroyed at will. The system is open source, and the whole system must be open and transparent. Therefore, after a transaction is broadcasted across the network, it will be successfully recorded with more than six confirmations, and it is irreversible and irreversible. Note: imtoken is the confirmation of 12 blocks
anonymity: the identity information of each block node does not need to be announced or verified, and the information can be transferred anonymously. For a simple example, you initiate a transaction to a wallet address on the blockchain, but you can't know the exact person behind the address, or your private key has been stolen by a hacker, and you can't know who the hacker is from a wallet address.