One thousand one night blockchain

1.

blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is a decentralized 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 a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

3. All the nodes in the network are in the hands of one organization, which is called private chain

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain features

1, 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

2. 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

3. 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

4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated 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 can be transferred anonymously

2. 99% of them are deceiving. It's deceiving to say how much it will appreciate. It's just a technology, its application is valuable.

3. 1. Bitcoin
it is the birthplace of blockchain technology, and the market has confidence in it. It still maintains a stable growth under the adverse situation of major policies. Once it solves the problem of capacity expansion, the price rise can be predicted
2. Ethereum
compared with bitcoin, the advantage of Ethereum is that it has no policy problems. Although the event led to its bifurcation, the establishment of enterprise version Ethereum alliance may solve this problem. Its concept and Prospect of smart contract attract many developers to follow
the essence of community operation is that the majority decides the minority when indivials support eth
3. Zec
compared with bitcoin and Ethereum, the risk of z-coin will be greater, and its value will take a longer time to reflect. But in the long run, the value of anonymity will be one of the values that human beings generally pursue
4. BTS
bitstocks are very powerful and the system is very stable. Decentralized trading, anchoring system and so on. Although the founder bm's brain damage has hurt the community, the value of bitstocks is obviously undervalued. It is a wise choice to hold bitstocks on the cheap.

4. I don't know if it's a cheat. Anyway, I'm bragging about it. I always ask them to buy it. At the beginning, it's rising very well. It's suddenly plummeting these days. I should have hired a lot of people. Anyway, I didn't buy it

5. Forget it, this must be a professional mine, and the power expenditure and investment in basic equipment
it's estimated that the virtual currency that ordinary people can't afford is not easy to make, so don't think about it any more.

6. You can make a lot of money from scratch. About a few hundred dollars. There is no comparison between the top 200 local tyrants and those behind them in the area of 1000

7. Blockchain is on fire these days, and more and more people are interested in blockchain. But blockchain is really hard for people who have never heard of it
I believe most people have heard of cryptocurrency bitcoin. Blockchain is the underlying technology of bitcoin. It is a chained data structure composed of data blocks connected in sequence according to the time sequence, and it is a distributed account book that can not be tampered with and forged by cryptography
there are a lot of blockchain landing applications, and those who are interested can have a look. Cryptography focuses on blockchain messages.

8.

Because the "blockchain" technology is supervised by many people, it can not be changed at will, because there are many eyes staring at it< "blockchain" was used by historians at that time to record historical facts, so as to avoid tampering with history, so emperors would be afraid

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and the historian system in the spring and Autumn period is such a principle, but the Historiographer family is not controlled by the state, they are relatively independent, because they dare to write something other dynasty historians dare not write , how can this not make the emperor afraid“ The "blockchain" technology is really applicable everywhere

9. There are rules, but they don't allow us to accurately predict the bottom and top of the stock market. For example, after a sharp decline, especially after a low accelerated decline and a panic decline. Everyone lost interest in the stock market. When it comes to speculation and investment in stocks, I feel like you are a gambler. There must be a substantial rebound, that is, the bottom will soon be formed, the stock market will rise sharply, especially accelerate its rise. Most people are making money and talking about stocks everywhere. It means the bull market is coming to an end. But no one knows the exact time or the exact location. It's going to be harder than we thought. Hope to adopt.