Amazon QLDB – https://amzn.to/2HNIQEO, is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log owned by a central trusted authority. Amazon QLDB tracks each and every application data change and maintains a complete and verifiable history of changes over time. Watch this demo to learn more!
Publisher: Amazon Web Services
You can watch this video also at the source.