The Hyperledger Fabric, which IBM is using, is explained here: https://www.hyperledger.org/projects/fabric https://www.hyperledger.org/projects/fabric There is

The Hyperledger Fabric, which IBM is using, is explained here: https://www.hyperledger.org/projects/fabric https://www.hyperledger.org/projects/fabric There is a video that offers a high level view of farm to fork (agriculture products to consumers) using the block chain ideas in Hyperledger Fabric. From Nigel Gopie, an IBM Food Trust speaker, says "The permissioned blockchains we rely upon (hyperledger fabric) don’t use don't use proof-of-work or "mining" — unlike some other Blockchains like bitcoin — which is what consumes huge amounts of energy. " (from a tweet conversation after a presentation he gave in Denver April 2018: https://twitter.com/analyticsbytes/status/984140954834632704 https://twitter.com/analyticsbytes/status/984140954834632704)