A Protocol Network refers to a set of rules and guidelines that govern how data is transmitted and processed between devices on a blockchain. These protocols define the interactions within the network, including how transactions are confirmed and how nodes communicate.Each protocol serves a specific purpose. For example, Bitcoin uses a consensus mechanism called Proof of Work, while Ethereum introduced a more versatile platform that supports smart contracts through its own protocols. Protocol Networks can be public or private, affecting who can access the data and participate in transactions. They also vary in terms of scalability, security, and speed, impacting their overall performance and usability.Moreover, unique protocols give rise to various applications, from decentralized finance (DeFi) to non-fungible tokens (NFTs). Understanding these networks is crucial for grasping how different projects function and evolve in the rapidly changing landscape.