[theseatoms]

As you've identified, a "private blockchain" is just a database. People can't wake up to this soon enough.

[verdverm]

Yes and no. Consider HyperLedger.

While it does have a shared, immutable ledger and chaincode, what is really interesting is the coordination and integration of business entities and processes. This is something a database does not facilitate like a blockchain.

[theseatoms]

Interesting. I'll have to read up on HyperLedger.