How does keep network work?

Can you explain in simple terms how the Keep Network actually operates? I'm curious about the underlying mechanics that allow it to function effectively and securely. Are there specific protocols or algorithms that are utilized? And how does it ensure the privacy and confidentiality of its users' transactions? I'm also interested in understanding the role of nodes and their importance in maintaining the network's stability and performance. Lastly, can you provide any real-world examples or use cases that demonstrate the practical applications of the Keep Network?