What does the pokt Network do?

Could you please elaborate on the functionality and purpose of the pokt Network? I'm particularly interested in understanding how it contributes to the overall cryptocurrency and blockchain ecosystem. What specific challenges does it aim to solve, and how does it achieve that through its unique approach? Additionally, how does the network's operation impact the efficiency and scalability of decentralized applications? I'm keen to gain a deeper understanding of its working mechanism and the benefits it offers to its users and the broader industry.