Quantum Ledger

Overview

Amazon QLDB is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log owned by a central trusted authority

• Immutable append-only ledger based database
• Cryptographically verfiable transaction log
• Transparent - full history is always accessible
• Serverless - Provides Ledge and Tables - not servers
• 3AZ resilience and replication within each AZ
• Can stream data to Amazon Kinesis
• Document DB Model
• ACID - Transfer A->B .. either both work or none work

Use cases

• Finance - account balances & transactions
• Medical - full history of data changed
• Logistics - track movement of objects
• Legal - track usage and change of data(custody)