The mark of 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.

Public chain, also known as "public chain", refers to the blockchain that anyone in the world can enter the system at any time to read data, send confirmatory transactions and compete for bookkeeping. The public chain is generally considered to be "completely decentralized", because no indivial or institution can control or tamper with the reading and writing of data in it. In terms of application, blockchain public chain mainly includes bitcoin, Ethereum, super ledger, most counterfeit currencies and smart contracts. The ancestor of blockchain public chain is bitcoin blockchain, which has the following characteristics:

1, open source code

upload the code to GitHub, and everyone can get complete blockchain data by downloading, Accept the test of the public

2, complete decentralization

anyone can become a node, each node is open, everyone can participate in the calculation of the blockchain, any node is not permanent, but phased, and any center is not mandatory for nodes. Anyone can read and send transactions, and transactions can be effectively confirmed on the blockchain. Anyone can participate in the consensus process. The consensus process determines whether a block can be added to the blockchain and the exact current state. Everyone can get financial reward from it, which is proportional to their contribution to the consensus process. These public chains are generally considered to be "completely decentralized"

3. Developing decentralized applications

through this public chain, developers can easily develop centralized applications. Public chain can protect the rights and interests of users from the influence of program developers

3.

Seeing some answers to the debate on the definition of blockchain, I suddenly realize that my answer to this explanation principle has always been directed at bitcoin. There is no specific and unique answer in the instry between the definition of blockchain. Here I first summarize the characteristics of "blockchain" according to the papers I read:

1; Hash chain & quot There are several nodes participating in the system operation (distributed)

3. Reach a consensus on the consistency of basic data (consensus agreement / algorithm) through a certain protocol or algorithm

since bitcoin is currently one of the most typical and influential applications of blockchain, it will be much easier to understand how bitcoin uses blockchain before understanding other forms of blockchain applications

4. Anti counterfeiting research is the problem of "who am I?" it is to identify the unique properties of the goods by means of fingerprint recognition, iris recognition and other methods to ensure their authenticity and uniqueness. The problem of blockchain proct traceability is "where does the proct come from? Where are you going? " For example, vonetracer of wangchain technology, after users get the proct, they can scan the code to see the whole process.

5. 1, comprehensive layout is coming
as people's misunderstanding of blockchain technology graally dissipates, we will see that next year, the financial services, insurance and medical instries will carry out comprehensive deployment of blockchain technology
blockchain technology will subvert our payment system internationally - the old profit model and other processes will become obstacles, and payment will become faster, cheaper and safer
however, as blockchain becomes more and more mainstream, we can no longer ignore the main obstacles on its development path. For example, the banking instry must develop a clear roadmap for blockchain adoption and cooperate on the basis of global standardization
2, the standardization process is about to start
with the more and more extensive application of blockchain, it will become extremely important to establish standardization methods between each other. But there are complex and political processes that can get in the way - there are conflicts of interest between instry organizations, and companies are trying to gain a clear advantage
with the implementation of various blockchain schemes, we will see that the situation will change to the process of standardization and integration. Once competing organizations graally realize the benefits of alliance and start to accelerate the trade process, strengthen detection and optimize data management
in 2017, there may be only a few dynamic blockchain alliances left, but instry players will have to cooperate and reach an agreement on a flexible and universal open logo. Governments and regulators will also play an important role in protecting consumers and encouraging innovation
stakeholders driving the development of blockchain standards will need to be creative and can envision a future in which these standards can be used to create new and powerful tools
3, fintech is accelerating development
fintech is bringing great changes, from simple payment to complex global financial operations are being subverted by it
the in-depth changes that are expected to happen next year are as follows:
blockchain combined with machine learning can jointly accelerate the existing process and optimize efficiency
emojis, payment, will be more widely used, and mobile devices will become more and more secure
lending network will become one of the hottest areas of blockchain
all countries in the world will be more interested in the development of digital currency
4, it's time to subvert the field of payment
in the field of payment transaction, blockchain technology is used to overcome the problems existing in the agent banking system and international remittance
there are many proceres and incoherent processes in cross-border non cash transactions, which can be eliminated by eliminating the third-party institutions, direct currency transfer and efficient inter-bank settlement. This possibility of creating a competitive market for liquidity providers may ensure the optimal exchange rate for international exchange and payment transactions
payment systems are based on local banking regulations and practices, but lack of common standards, which reces the ability of seamless transmission of data and background information, and brings settlement and non settlement risks
the extensive implementation and use of blockchain will change and subvert the existing financial services instry and payment system on a global scale
in addition, although the blockchain was very popular in 2016, there was very little substantive progress. Only coin Ying China and China Post really put it into practice, and other projects just stayed in the theoretical stage.

6. The core significance of the blockchain of four technologies is to establish the credit of all data between the participating parties, establish the trust relationship under the premise of creating unilateral ecological common protection under clear regulations, and then let the miners participate in the realization of credit.