blockchainの上のアプリも大事ですがblockchainそのものの重要性はIoTを考える上でも不可欠でしょうね．
製造業でも関係ないとは言えないのでは．
"Applying the blockchain concept to the world of IoT offers fascinating possibilities.
Right from the time a product completes final assembly, it can be registered by the manufacturer into a universal blockchain representing its beginning of life.
Once sold, a dealer or end customer can register it to a regional blockchain （a community, city or a state）. "
IBM ADEPT Practictioner Perspective - Pre Publication Draft - 7 Jan 2015
Vita brevis, ars longa. Omnia vincit Amor.