Privacy is private, it can't be known by many people, then how about privacy on the chain ?, isn't that great ?. I think "yes". Zero-knowledge proof is proof from one party (prover) to another party (verifier) that he knows some information without having to reveal the contents of that information. The stages of generating a ZKP are complex and various teams of blockchain developers are looking for ways to make ZKP faster, safer, and more efficient. Until finally appeare Manta Network. Then what is Manta Network ?