> Most things people seem to think are running on blockchain tech turn out not to be, so I'd be interested in any evidence here. Nonetheless. There's a few suc

> Most things people seem to think are running on blockchain tech turn out not to be, so I'd be interested in any evidence here. Nonetheless. There's a few such systems in production - in practice, they tend to use a private Ethereum or Hyperledger as a back-end data store, and 100% of the use case for using a blockchain for your private back-end data store is being able to say "blockchain!" in the press release.