Popular blockchain

1.

blockchain is an important concept of bitcoin. It is essentially a disintermediated 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 the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block

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

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 can not be tampered with and forged by cryptography

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

extended data:

the evolution mode of blockchain is as follows:

& 9642; Blockchain 1.0 - digital currency

▪ Blockchain 2.0 - digital assets and smart contracts

▪ Blockchain 3.0 - Implementation of distributed applications in various instries

blockchain features:

1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, 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

2. 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. 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. 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

The information can not 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. Therefore, the data stability and reliability of the blockchain are extremely high

5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit

2. Blockchain pet development game, the most popular blockchain game at present: "ether clown" is wonderful online! As a pet that people love, in addition to "beauty", there are many characteristics, such as being coquettish [hee hee], working to make money [too happy], being able to tease a younger sister to have a baby [insidious] [color] every clown; Are unique, with a very high collection value! Such a cute clown; Would you like one? Huh[ Insidious] [longing] then come to adopt, take your ugly child home [bad smile] to help you make money and provide for your old age
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3. The explanation of MIIT is as follows: blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing paradigm to program and manipulate data by using smart contracts composed of automated script code
take an example: for example, Sun Tzu asked Li Zi to borrow 100 yuan, but Li Zi was afraid that he would default, so he asked the village head for notarization and added the account. This is called centralization. But if you don't ask the head of the village, you can shout "I'll lend my grandson 100 yuan! Please put it in the account book. "This is called decentralization
in addition, you can refer to bitcoin, the representative proct of blockchain

4. At present, the centralized exchanges are more popular, such as currency security, gate and fire currency, and gate is more convenient to access gold. However, decentralized trading is a trend in the future. Now, in the area of decentralized trading, the Luyin agreement is doing better in China.

5. Blockchain technology, as a technical solution for collective maintenance of a reliable database in a decentralized way, has the characteristics of decentralization, tamper proof and high scalability. It is becoming another emerging technology that will have a significant impact on the future after big data, cloud computing, artificial intelligence, virtual reality and other technologies, It is expected to promote human from the era of information internet to the era of value Internet
since 2016, the frequency and amount of investment and financing in China's blockchain field have increased dramatically. According to the statistical data of "in depth analysis report on business model innovation and investment opportunities of blockchain instry" released by foresight Instry Research Institute, in the first half of 2018, the amount of financing in the blockchain field was about 10.7 billion, with a year-on-year growth rate of 1426% compared with the same period in 2017; The number of investment and financing events in the field of blockchain has reached 205, and it is expected that the investment in the field of blockchain will usher in another peak this year
judging from the distribution of investment and financing rounds in China's blockchain field, the proportion of investment rounds in the start-up period (before round b) is more than 95%. There are many instry pioneers participating in the investment, and most of the enterprises are still running around.

6. BTC, ETH, XRP, BCH, ADA, LTC, xem, XLM, EOS, dash

7. Blockchain fire is e to its advantages, such as decentralization, non tampering, traceability, etc., which can solve information asymmetry, anti fraud, counterfeiting and so on to a large extent. Take Zhongan, for example, it is now using blockchain to raise chickens. In the past, businesses said it was a local chicken, but you can't see it. You can only judge it after you have cooked it at home; However, you can see at a glance what kind of food you eat, how many steps you take, and the growth of chickens from the beginning of chickling to the end of alt, so you can't fake it.

8. Blockchain itself is a relatively avant-garde science and technology

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm for building trust and obtaining rights and interests between different nodes in the blockchain system
the relatively excellent blockchain projects include Ethereum intelligent contract and distributed content publishing platform, decent.

9. Laikelib, you can network this, and count the blockchain.