What are the different types of DLTs & how they work?

Let me clarify from the get-go that although both the terms DLT (Digital Ledger Technology) & Blockchain are used interchangeably, there is a certain differentiation between the two that needs to be understood to clear any misconceptions. The 700-year old paper-based double entry system (debit/credit) which originated in Italy was prevalent everywhere till the invention of Computers & Internet. Although the idea of Blockchain gained relevance & fame after the launch of Bitcoin in 2008, the idea had been conceptualized as far back as 1991 when Stuart Haber and W. Scott Stornetta with their work on cryptographically secure (tamper proof) chain…...