Hii @simonnwigwe

Thanks a lot for sharing your quality content with us. Blockchain is the progressing field and there is also the updation of new features in it everyday. Although there are some challenges in implementation of blockchain as you have explained energy consumption, scalability,security and privacy are the major issues in the implementation of blockchain technology.

You have explained well about the key features of the technology. Immutability, transparency and not Limited border transactions made it a worthy technology. You have very rightly said that the distance is not the problem while performing the transactions. We can make the transactions at anytime we want just by putting the accurate keys.

Your explanation about the working is also quite well.Blockchain works on the nodes or these blocks store the history also.You have also explained well about the Zero-knowledge proof that is a good way of authentication such as it did not require all the personal information for the verification.

Another major advantage is the decentralization of the technology. Here no third party or intermediary.

You have rightly said Decentralization of the blockchain technology does not allow the involvement of third party so it enhances the security of the system.

You have explained very well about the major advantage and disadvantage of the blockchain technology.Its advantages of fast and secure, decentralized nature and transparency has gain the trust of the users.

The transparency sometimes also cause the privacy issues in users.You have explained very weĺl and presented a good entry.I learned a lot from your post.Thanks for sharing.

Good luck for the contest.