Hii @janemorane

Thanks for sharing your quality content with us.blockchain is making progress day by day although we have face some issues in the implementation of blockchain Technology such as scaliibility or compatibility issues. You have rightly said that the management,privacy and data modifications are the issues behind the implementation.

You also explained well about the key features of Blockchain technology. Decentralization that does not allow the involvement of third party,effecient working anď smart contracts that make the blockchain a worth technology.

You have clearly explain about the zero knowledge Proof that allow the authentication without knowing the personal information of two parties. This authentication is used in many apps or website to get access to their data.

There are lot of advantages of blockchain technology that make it worthy.There are some disadvantages also.If we will able to solve the issues in blockchain implementation we can use it will move towards more advancements.

I appreciate the effort you put in creating this article.

Good luck for the contest.