It's the first time I hear about Blockchain Center

I would like to know what kind of courses they give: for beginners? for experts?

Where can I register to participate in these courses?

The world of the blockchain attracts me a lot, especially in the aspect of offering a disruptive technology that can be used for much good at the social level, since it is a system that offers trust, transparency, and immutability (security).

Nice meeting you