The benefits of blockchain can often seem slightly intangible - terms like 'distributed ledgers', 'permissionless networks' and 'smart contracts' don't speak to people on an everyday level.  So it's refreshing to see a blockchain service that could help you buy your morning coffee. 

We've heard a lot about how financial institutions are getting excited about blockchain, but the promise of blockchain that's 'as simple as e-mail' could open up the technology in a more palpable (and tastier) way.