Ask HN: Name a non-cryptocurrency blockchain project in use in the real world?

Over the last decade I've heard lots about the potential of blockchain technology beyond cryptocurrency.

But I've heard a lot less about how much of that supposed potential has actually been realised.

Every time I meet someone who has anything to say about anything blockchain-related I ask if they can point to a current, real-world blockchain project that isn't basically a cryptocurrency and has made it past being just a prototype or an idea.

Literally nobody I've asked has been able to come up with anything that meets those criteria.

Can you?