Hii @ajay27

I appreciate you have briefly attempted all the questions. Blockchain is of great importance in our lives or in different fields of finance,education,transportation or its impressive features attracts the users.

You have tell about the zero knowledge proof that is the advanced method for the athentication without knowing the personal information of the users.

One of the main disadvantages is the complexity of the technology,

It is not much complicated.Its accurate working or adavantages covers these drawbacks.However I agreed if the issues in the implementation are solved it can work more better way.

Thanks for sharing.I am looking forward for your more details and active Participation in the next week.

I wish you success.