July 17th 2017 LinkedIn Article. Magic 20 years ago, last month, J.K Rowling (or Joanne as she was then known) published “Harry Potter and the Sorcerer’s Stone”. The first five hundred copies printed sold out immediately and five hundred million copies of the series eventually followed. Rowling created a fantasy world of wizardry and a new vocabulary: “Quidditch”, “Shrieking Shack”, “Skel-Gro” and “Slytherin” all dazzled the reader as part of a new lexicon. As Distributed Ledger Technology (D...