[pepr]

That doesn't give you the ability to cryptographically verify integrity of the database. Think git repository with pgp signature on every commit.

[m3kw9]

I think once centralized, there is inherently something wrong with blockchains. There is always chance of bait and switch, even though you trust amazon.

[pepr]

Sure but QLDB isn't a blockchain. Blockchain is just one of many things that can be implemented on top of it. You could implement the same thing with an SQL database and signed history tables.

[kaflorf]

QLDB != Blockchain. It does not use blockchain at all.