Amazon announced on 11/28/2018 at AWS re:Invent that it has introduced two new services including the Amazon Managed Blockchain and the Amazon Quantum Ledger Database (QLDB). The Amazon Managed Blockchain is a fully managed service to create and manage scalable blockchain network based on Hyperledger Fabric and the Ethereum network. The Amazon QLDB 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.

Article Source: Amazon QLDB via TechCrunch