The principle of blockchain is

1.

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 is a distributed account book that can not be tampered with and forged by means of cryptography

broadly speaking, blockchain technology is a new distributed infrastructure and computing method, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contracts composed of automated script code to program and operate data

working principle

blockchain system is composed of data layer, network layer, consensus layer, incentive layer, contract layer and application layer. Among them, the data layer encapsulates the underlying data blocks and related basic data and algorithms such as data encryption and timestamp; The network layer includes distributed networking mechanism, data transmission mechanism and data verification mechanism; The consensus layer mainly encapsulates all kinds of consensus algorithms of network nodes; The incentive layer integrates economic factors into the blockchain technology system, mainly including the issuance mechanism and distribution mechanism of economic incentives; The contract layer mainly encapsulates all kinds of scripts, algorithms and smart contracts, which is the basis of the programmable characteristics of blockchain; The application layer encapsulates various application scenarios and cases of blockchain. In this model, chain block structure based on timestamp, consensus mechanism of distributed nodes, economic incentive based on consensus computing power and flexible and programmable smart contract are the most representative innovations of blockchain technology

2.

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

3. Blockchain is a technology, but it is not a single technology, but the result of the integration of a variety of technologies, including cryptography, mathematics, economics, network science and so on. You can think of it as a distributed shared accounting technology, or as a database, but the database is jointly maintained by all nodes in the chain, and each node has an account book. Because the account books of all nodes are consistent, different nodes can trust each other, and there is no doubt about the data, so we all say that the blockchain has realized trust technically. For detailed professional technology, you can consult some professional technology companies, such as Jinbo technology, which focuses on the development of blockchain related procts, professional R & D team and perfect after-sales service, and you can consult by telephone.

4. Blockchain is a decentralized point-to-point transmission of distributed books, a technology based on consensus mechanism. Hashton blockchain training institutions are very good. You can learn about them.

5. He was the first bitcoin underlying technology to realize the sharing mechanism of point-to-point transmission of distributed data storage, so as to achieve the transparency and security of transactions. For example, six degree chain is actively introcing this technology. I think it is quite reliable.

6. Under the background of Internet, when we need to exchange value with unfamiliar adversaries, how can we prevent people from being deceived and confused by malicious saboteurs, so as to make wrong decisions. Shengshi Huacai, our company's partner, is very good at blockchain. His family is a professional financial IT solution and technical service provider. You can contact them if you need

7.

What kind of blockchain technology is popular recently? Blockchain technology is considered to be the brightest star in financial technology, and it may continue to develop in the future. It has many characteristics, including data distribution, data trust and collective consensus mechanism, and most importantly, openness, transparency, anonymity and privacy, According to the data in the blockchain, we can get some basic information of contemporary society

blockchain technology is such a safe and scientific database. It can be simply understood as an authoritative database, in which the basic content is true, verified and audited by others. In terms of financial technology, it is very easy to find some desired data, which is very good for business people

8. The application of blockchain technology in life has just started, but the changes it brings are very huge. This kind of change comes from all aspects, and will have an important impact on our ordinary people's lives

"now the college entrance examination is a lifetime, but if we use the form of blockchain, we can record all the learning records and extracurricular activities of a child from the age of six to the college entrance examination. So the examiners of the college entrance examination don't need to pass an exam or an interview to decide the selection of talents. They can decide what kind of talents they want through all their records. "

about the application of blockchain technology, Qin Yi, partner of Deloitte global financial services, said when introcing it to Jinping media

as for blockchain, more explanations in China still stay at the conceptual level, and there is no really large-scale popular application in China, so we have to say that blockchain still keeps a certain distance from the public. In this interview, I believe it can help you have a deeper understanding of blockchain

blockchain is disintermediation

blockchain, and many explanations are decentralization. Different from the general explanation. "It's not decentralization, it's disintermediation," says Qin

because data is distributed in a distributed way, there is a strong security mechanism in it. Qin Yi said: "because no matter which server is serving, the entire data storage is not easy to detect. But most importantly, because of the reliability of the data, we don't need an intermediary to prove who you are, but rely on a record that we can trust each other to promote any transaction in our life

in her opinion, blockchain is actually a database, but when storing data, it has its own characteristics, such as security, integrity, authenticity, non tamperability, etc

for this technology, Qin Yi concluded: such technology will bring earth shaking changes to life

how to embody the commercial value

compared with foreign blockchain technology, domestic blockchain technology is still in a stage of popularization and cognition. What kind of business value will the future blockchain bring us? Looking at the progress abroad, maybe you can see some possibilities

"two weeks ago (on April 20), Bank of Ireland and Deloitte jointly issued a statement. Three months ago, Ireland's International Investment Banking Department asked Deloitte to help design and track the investment behavior of its clients. Strengthen the understanding of customers. In order to meet the regulatory requirements of Europe, they have successfully completed the validation model through the efforts of the past three months. "

a Deloitte executive also said that if this technology can be applied, it will greatly rece the transaction costs of the instry

Deloitte also published a report in 2016, saying that 2016 will be the first year for blockchain to move from laboratory to real life. Bubi (Beijing) Network Technology Co., Ltd. (hereinafter referred to as Bubi) is a leading blockchain technology service provider in China. Since its establishment, Bubi has been focusing on the R & D and innovation of blockchain technology and procts. It has a number of core technologies, and has made substantial innovation in many aspects, forming a number of core technology achievements, such as mathematically proven distributed consensus technology, distributed consensus technology, and so on Fast large-scale account book access technology, multi chain general ledger technology supporting business form expansion, interconnection technology between heterogeneous blockchains, etc. We have developed our own blockchain basic service platform, which has been applied in equity, supply chain, credit and other fields. Bubi has been committed to building an open value circulation network with the core of decentralized (polycentric) trust, so that digital assets can flow freely

with the in-depth development of many companies, the effect of blockchain technology on the life of ordinary people is becoming more and more obvious.