The narrow and broad definition of blockchain

1. The definition of Chongqing jinwowo analysis blockchain technology is as follows:
1. Blockchain is a distributed database (system) placed in a non secure environment
2. The blockchain uses cryptography to ensure that the existing data cannot be tampered with
3, the blockchain uses consensus algorithm to reach consensus on new data
the system with the above three properties is blockchain.

2. The analysis of jinwowo network technology is as follows from the narrow and broad perspectives:
in the narrow sense, blockchain is a kind of chain 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 means of cryptography
broadly speaking, blockchain technology is a new distributed infrastructure and computing paradigm, 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 contract composed of automated script code to program and operate data.

3. Chongqing jinwowo analysis has two meanings as follows:
in a narrow sense, blockchain is a kind of chain data structure composed of data blocks connected in sequence according to the time sequence, and ensures the tamper proof and forgery proof distributed account book by 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 proce and update data, uses cryptography to ensure data transmission and access security, and uses intelligent contract composed of automated script code to program and operate data.

4. Blockchain refers to a distributed and shareable public account book that can be trusted through consensus mechanism and checked by each participant. However, no centralized single user can control it. It can only be revised according to strict rules and open protocols<

features:
1. Decentralization
in current system design or application development, central server is considered to realize all information exchange and data storage. But in the blockchain, through the construction of distributed architecture and open source protocol, all participants participate in data recording and verification, and then send them to each node through distributed propagation. Even if some nodes are attacked or damaged, the integrity and information update of the whole database will not be affected, which means that each participating node is "self-centered"

2, to trust
in traditional Internet mode, it is through the trusted central node (such as the housing registration system) or the third party channel (such as Alipay) to carry out the matching verification and trust accumulation, so it can not achieve the center of value transfer.

3. Timestamp
blocks are generated by packaging all the information (including data and code) generated in a certain period of time. The index information of the previous block is included in the page capital of each next block, and the chain is formed by end-to-end connection. Therefore, the addition of block (Complete History) and chain (complete verification) forms a time stamp (which can trace the complete history). It stores all the historical data in the system, provides retrieval and search functions for each data, and can trace the origin and verify each data by means of blockchain structure<

4. Asymmetric encryption
blockchain is an asymmetric encryption algorithm through the mathematical consensus mechanism, that is, a "key pair" is used in the process of encryption and decryption, and the two keys in the "key pair" have the characteristics of asymmetry: first, only the other key can be decrypted after one key is encrypted; Second, after one of the keys is public, other people can't work out another key according to the public key.

5.

1. The main business of CSG is flat glass, engineering glass and other energy-saving building materials, silicon materials, photovoltaic moles, etc

2. Solar energy

China energy saving solar energy technology backdoor listing; Cecep solar energy technology is a holding subsidiary of China energy conservation and environmental protection group corporation. In the field of solar energy utilization, cecep solar energy technology has eight advantages: the largest resource reserve, the richest investment experience, the strongest cost control ability, the most complete instrial chain, the best brand benefit, the best overall benefit, the most standardized enterprise management and the highest staff quality

The company's business scope includes the proction and development of monocrystalline silicon and polycrystalline silicon, while the company and its major shareholder, INET group, are engaged in the proction and development of monocrystalline silicon and polycrystalline silicon in Shizuishan, Ningxia (the reserves of silica are up to 4.28 billion tons)

Jinggong technology has made a lot of scientific research achievements in the fields of solar photovoltaic special equipment, building materials special equipment, textile special equipment, etc., and its proction scale and market share have been ranked first in China for years

The company is a high-tech enterprise integrating R & D, proction and sales of amorphous silicon, monocrystalline silicon, polycrystalline silicon solar cell chips, solar cell moles and solar cell application procts, Solar cell mole, solar lamp, solar charger, solar household power system, etc

Zhongli Tenghui is a domestic enterprise specializing in the development and construction of photovoltaic power stations, proction and sales of photovoltaic moles and cells. The company currently holds 74.81% equity of Zhongli Tenghui