I don't think Norberto is on the blockchain unfortunately ... I agree that his website is a goldmine of information.

I've been telling the DM crew to get on Steemit for almost 2 years ... all their information is scattered throughout the Internet and needs to be here. It'll make everybody's life easier when researching this stuff.

If you ever get a hold of Mr.Santiago please ask him why he blocked on twitter :) ... thnx!