This powerpoint presentation describes how standard blockchain work and focusses on the hashing function and why that is important to time and date stamping. This is explained in terms of validating the authenticity of original works and how it is used to validate proof of ownership. It also includes examples of blockchain based solutions that are commercially available.
For more information about this subject, contact your local GBA Chater Leader to find out when the chapter will be holding a meeting on this subject.