"Blockchain Technology Science" is an easy-to-understand introduction to what is a blockchain

in blockchain •  7 years ago 

In 2008, Chung Satoshi first proposed the concept of a blockchain, and in the following years became a core component of Bitcoin as an electronic currency: as a public account book for all transactions.

So what is a blockchain? (A) Introduce what is a blockchain in an easy-to-understand manner - Learning blockchain technology from scratch - Knowing about columns

Blockchain is a collectively maintained distributed database formed by cryptography.

Too complicated? It does not matter, we combined with you to understand!

First of all, the birth of a technology must be to solve a certain problem, so why is it born blockchain technology?

In our daily life, we often use Internet Banking or Alipay transfer. As a user, you feel that your money is directly sent to your account.
Companies such as Alipay here are "third parties". Why do we need to have a "third party" when transferring funds?

Ma Yun gave us a good explanation: How do two strangers separate from each other and trust each other? Third-party secured transactions are to solve this problem! This is also the beginning of the birth of Taobao and Alipay.

However, what if Alibaba's internal system has a problem? If there is a super safe system to do these things! So, blockchain technology comes before us, it is that super-safe system! A trusted machine.

Blockchain technology emphasizes: decentralization.
In a decentralized network, each user can be directly linked and there is no longer any third party involved. Transfers between users are the same as hands-on cash payments. This is why Bitcoin will be called "Electronic cash."

OK, now A has transferred the money to B. So who will write this account? Before Alipay helped me account bookkeeping, there will be a unified Alipay back-office system. The blockchain technology means that a centralised institution used to account for the books and reconciliations. Now every participant in the network helps you keep the books and everyone has the same book.

So why is the blockchain very secure?

Everyone in the blockchain has the same ledger, even if you have tampered with your own ledger and added more than 100 million to your account, but your account is still 1 cent in more than 51% of the books. The balance on the account is 1 cent and cannot be denied.

Of course, if you can control 51% of people on the Internet to help you turn a penny into 100 million in your books, you can get 100 million, but basically you have to use the power of the whole nation! If you have this ability, the head of the Global Village welcomes you to come...

This is why everyone said that blockchain networks are safe because the cost of attack is too huge. For example: Bitcoin now has a market value of 8 billion U.S. dollars. If you want to break it and get this 8 billion U.S. dollars, you may have to spend more than 200 dollars. One hundred million U.S. dollars......

Summarize several features of the blockchain:

  1. Decentralization: No third-party agency, everything is done by the program.

  2. Security: Mainly manifested in distributed, 51% attacks. Even if a node is attacked or down, it will not affect the operation of the network.

  3. The core is: to trust. All social behaviors must be based on "trust," which is the most fundamental issue in blockchain resolution.

Blockchain technology involves many sophisticated algorithms and block authentication methods. The above is only a brief introduction to concepts. Interested readers can search for related technical articles.

Since 2008, Bitcoin has undergone three application eras of programmable currency, programmable finance, and programmable society. Its application scope has gradually expanded to all aspects of social life.

From the demand side, financial, medical, notarization, communications, supply chain, domain name, voting and other fields have begun to realize the importance of blockchain and began to try to connect technology with the real world.

From the investment side, the supply of investment funds in the blockchain has gradually increased, the investment enthusiasm for the limelight has also been rising, and the investment density has also been increasing. The supply side's funds are expected to boost the further development of the technology.

From the perspective of market applications, the blockchain will prompt the transfer of the company's existing business model, which is expected to accelerate the company's development. ,

From the perspective of the underlying technology, the blockchain is expected to promote the transformation of data records, data dissemination, and data storage management. The blockchain itself is more like an underlying open-source protocol on the Internet. It will touch or even completely replace the current in the near future. There is the underlying basic protocol of the Internet.

Judging from the social structure, blockchain technology is expected to integrate law and economy, completely overturning the regulatory model of the original society; organizational form will change because of it, blockchain may eventually lead people to a distributed autonomous society .

Regardless of its development results, we are witnesses of this era. Isn't it?

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