SirixDB - The Bitemporal Database System
Summary
SirixDB 1.0 Beta presents a bitemporal, append-only database that stores immutable snapshots with per-resource revision history and time-travel reads. It uses a persistent trie and copy-on-write page fragments to enable fast access to any revision and supports two time dimensions: transaction time and valid time. The project also includes benchmarks, multiple storage/backends, and a REST/embeddable architecture.