Methods to ensure security and validity — In my last article, “How to Derail a Blockchain?”, we saw the two attacks- Sybil attack and 51% attack- towards which blockchain systems are vulnerable. In this article, I look into the various methods by which blockchain systems are secured. CONSENSUS PROTOCOLS The security and the correctness of blockchain systems are achieved…

Simple methods that make a Blockchain vulnerable — I hear plenty of buzz that blockchains are supersecure and attack proof and so are used global scale shared public ledgers. Before I try to understand what and how blockchains are made attack proof, I was wanted to know what attacks are possible on a blockchain. …

“Sometimes even the best of us have to lose ourselves in fantasy to survive reality.”- Maxi Bransdale The words of the writer hint to an old infatuation of humankind to escape reality, shape its environment and live in fantasy land. Until now it was achieved by narratives, stories, feature films…

A friend of mine and I, once had a discussion on how an egoistic society based on currency can never really have parity between men in any form. I rooted for the topic while he was on the opposite spectrum. The topic went through with discussion about major world governments…