I would like to know specifically who can take part in the project? What countries are allowed access here?
All countries in which there is no ban on activities with cryptocurrencies are likely to be allowed to use the project. It usually happens that way.
Cryptocurrencies now have a very ambiguous position in the global economy. on the one hand, they are not accepted in most countries of the world, and on the other hand they are not prohibited in most countries of the world. Most states continue to pretend that they do not notice this trend and this technology.
Sooner or later it will also affect them, this is relevant and will be popular for a very long time.