- Fully Managed
- Serverless
- Highly available
- Used to review a complete history of all changes made to you application data over time
- It is an immutable system
- meaning no entry can be removed or modified
- contains cryptographic signature to verify nothing has been removed
- Behind the scenes
- QLDB Journal
- contains a seq of modifications
- cryptographic hash is computed for every transactions
- Performance
- 2-3x better performance than common ledger blockchain frameworks
- manipulate data using SQL
- QLDB is centralized
- making it in-compliance with many financial regulation rules