Hello
I am a student (management and ...)
For my project of end of study I would like to present to even initiate  a digital/local/startup  whose nucleus would be the Block chain.
Idea 1: a system of notatization with backup or not for docsdocs ... With C2C service and B2C/B one even a government to Citizen service...
Idea 2: a "meal voucher" project ... I let you develop because the stakes and constraints seem obvious to me ...
Your comments ?
Any advice for the platform that I have to use? BTC, Eth, Ada and why not XLM ...)