So what is ZKP? Lets imagine any maze with the locked door inside. Mrs. Ether says to Mr.Btc that she can pass through the Maze, bcs she has a key from the door inside! But Mrs. Ether doesn’t want to show the key Mr. Btc. So the only way to proof, that Mrs. Ether has the key – is to open this door and go through the Maze, so Mr.Btc could believe that the key is real without seeing it. That is what about Zero Knowledge Proof! Good pumping)