What are the 3 protocols?

Could you please elaborate on the "3 protocols" you mentioned? Are you referring to specific blockchain protocols, network protocols, or perhaps financial protocols? Each field has its own set of protocols that are crucial for their respective operations. For instance, in the world of blockchain, we have protocols like Bitcoin's consensus mechanism, Ethereum's smart contract functionality, and many others. Clarifying the context would help me provide a more accurate description of the "3 protocols" you're inquiring about.