Chromia Database overview

Chromia uses relational blockchain technology to give every dapp its own application chain and dedicated data layer. This section collects the content that helps product teams understand when to reach for the Chromia Database, what it can do, and how it differs from a traditional L1 or sidechain.

Why a database-first chain

• Strongly typed data models (via Rell) make data-heavy dapps easier to reason about.
• Application chains store data in PostgreSQL, giving you ACID semantics together with the security of the Postchain consensus layer.
• Built-in indexing, foreign keys, and JSON/BLOB support make it possible to mix transactional workflows with rich content.

What to explore next

Topic	Description
Architecture	Learn how provider nodes replicate state and how state anchoring works.
Scaling models	Dive into how horizontal scaling works with multiple application chains.
Deployment	Understand how to evolve schemas and roll out migrations.

Use the sidebar to continue exploring or head to Getting started for a practical walkthrough.