> For the complete documentation index, see [llms.txt](https://docs.sodex.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sodex.com/trading-mechanics/orderbook.md).

# Orderbook

The SoDEX Order Book functions with the **identical mechanics of a centralized exchange**, but features **fully decentralized, on-chain execution**.

Orders must be precise: prices require **integer multiples of the tick size**, and sizes require **integer multiples of the lot size**. Matching strictly adheres to **price-time priority** (best price first, then earliest entry time).