The realization of this innovation was possible due to the special proof of construction called zk-snark. The zk-snark cryptographic technology is checking the validity of information without publishing any confidential details. Because of marketplace’s totally unsecured system, the private key of each user isn’t actually too private. The user’s addresses can be viewed by other partners or marketers. Fortunately, Zcash encrypted all the transactions details. It is an innovative cryptography that changed the way a blockchain is seen