Invited by Aerce (Spanish Association of Purchasing Managers) at the end of march, on the occasion of the Buyer's Day in Barcelona, ​​I had the pleasure to make a presentation about Blockchain and its application in procurement. I am grateful to have been able to share my experience and exchange testimonies and opinions on this topic with the companies present there. We all read about Blockchain, we watch videos, we participate to keynotes, and these multiple introductions gi