What is the role of blockchain nodes

1. In short, it is an important concept of bitcoin

2. A lot of network, or in a group said easy to understand. Teach you to understand with mathematical knowledge (node is a point, block is a line, and blockchain is a surface). Node is the basic unit of information processing in blockchain application technology. After processing information, many nodes will be timestamped, generate data blocks, and connect blocks in time sequence to form blockchain.

3. It contains complete blockchain and network routing nodes, which are only used to synchronize blocks, participate in verification, and maintain connection with peer nodes.

4.

1、 The types of mobile phones are not exactly the same: g9700 belongs to 4G / 3G mobile phones; G9730 belongs to 5g mobile phone

Second, the screen size and resolution are different: the main screen size of g9700 is 5.8 inches, the narrow frame is 3.42mm, and the screen proportion is high 84.49%, the main screen resolution is 2280 x 1080 pixels; G9730 home screen size 6.1 inches, narrow frame 04mm, screen ratio The resolution of the main screen is 3040x1440 pixels

Third, the camera configuration is different: g9700 has three cameras, including two rear cameras, which are 16 million pixels + 12 million pixels, and the front camera is 10 million pixels; G9730 has four cameras, one more 12 megapixel rear camera than g9700

Fourth, the overall size and weight of the mobile phone are different: the size of g9700 mobile phone is 142.2x69.9x7.9mm, the weight is not the same 150g The size of g9730 mobile phone is 149.9x70.4x7.8mm, and the weight of g9730 mobile phone is 157g

(5) the color of mobile phone is different: g9700 mobile phone has four colors: bright jade white, carbon crystal black, glass green and lime yellow; G9730 has one less lime yellow color than g9700

5. The role of nodes in Chongqing jinwowo analysis blockchain technology is as follows:
the data exchange process of each node is not tampered with; Exchange history cannot be tampered with
the data of each node will be synchronized to the latest data, and the latest data after consensus will be recognized
based on the principle that the minority is subordinate to the majority, the data maintained by the whole node reflects the exchange history objectively.