Why did we build Amazon QLDB to be a first-of-its-kind immutable and verifiable ledger database? In this session, join Andrew Certain, AWS senior principal engineer, as he discusses Amazon QLDB's unique journal-first architecture along with its various innovations. Topics include cryptographic hashing, Merkle trees, Multi-AZ availability, PartiQL support, and much more. Also included is a special focus on how we brought the data integrity benefits of blockchain into a SQL-compatible database.