First Post on Steem

Hello fellow Steemit readers, i just want to introduce myself, i am a coder, developper and i want to explore this new kind of service, i am mainly interested in blockchain based applications, concepts, ideas, projects.
I would like to see more projects related to blockchain usage outside of the token or coin management and issuing.
I am actually thinking about using a blockchain as an authentication service, and permission management server or ethereal server.
Have a nice day ( night ? )