The blockchain in the supply chain requires an ecosystem where there is an interoperability that allows the different tools to talk to each other. The standardization in public and private systems of projects in different verticals of the industrial sector is the mandatory step that global and digital communications demand. "It's the only way to grow," said yesterday Virginia Cram Martos, CEO of Triangularity (Switzerland) and project leader for the Blockchain project of the United Nations Center for Trade Facilitation and E-Business.