Currently at the time of writing this post (08-Nov-2017) Block Chain technologies A.K.A Distributed Ledger Technologies (DLT) are relatively new and are in the early stage but still they managed to disrupt the entire world with their power and use case.
Do you need a proof to support my statement If you are not convinced then look at Bitcoin. It will talk for itself
Having said that at the moment, there are lots of big players who are trying to roll of their sleeves and get their hands dirtied to test the muddy water The reason I refer Muddy since the whole technology space is in the beginning stage and not very clear at the moment
Lots of experiments, Proof Of Concepts (PoC), Prototypes are being worked upon by Big players and also by commons technology enthusiastic and Start up Business Entrepreneurs to use this amazing technology and create a better living society for the man kind.
Most of the Big Players are targeting the Financial institutions across the world to gain the No 1 Position and quickly cash out the maximum Profit in the early stage by striking deals and to re brand them as leaders in this Space.
Where as commons technology enthusiastic and Start up Business Entrepreneurs are trying to solve our daily day to day real life problems using Block Chain technologies A.K.A Distributed Ledger Technologies in a efficient and cheaper solutions.
This PDF will help the readers to understand about the currently available or evolving Block chains and their differences.