Blockchain business case

Hi all,

I building business case for Blockchain services for my Subsidiary. Therefore I'd like to know what is potential revenue for Microsoft coming from BC services on Azure. 

• What are reference projects, deal size, Azure pricing, service engagement, SOW? 
• What are customer use case for BC, in what scenarios?
• Do We have any TCO calculator or business case for BC?

Thx for support!

/TK