How does Bitcoin work in China, behind a firewall?

Question

bitcoin

They say that China is so isolated in terms of network traffic. How does bitcoin work then?
I’m interested for a friend, otherwise the network will also be isolated in his country. How will blockchains work then?

Answer 1

It is difficult to isolate completely, and most often it is not necessary. Who needs it, those passages have. Of course, the great Chinese firewall makes its own adjustments, especially seen in the unstable access time to pools and nodes, but in general everything works.

Answer 2

Just like blocked sites

Answer 3

China currently prohibits the creation of bitcoin exchanges, including the inability to use the banking system, so there are still a small number of players trading in cash in China. Some players can also buy bitcoins. Use other channels to buy other people's bitcoins.
For example, the trading platform of the BTCC exchange was also moved from China and these are the oldest exchanges.