> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dzap.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Smart Contract Architecture

> DZapDiamond, facets, and the upgrade model.

<Note>
  A full architecture deep-dive lands soon. Until then, this page links to the canonical sources: contracts, audits, and addresses.
</Note>

## What we ship today

* **DZapDiamond** — the per-chain router, deployed at the addresses on [Smart Contract Addresses](/products/contracts).
* **Permit2** — Uniswap's standard, deployed at the canonical `0x000...22D473` on EVM.
* **Audits** — see [Security & Audits](/products/security-and-audits).

## Source

* **Contracts repo** — [`DZapZappingContracts`](https://github.com/DZapIO/DZapZappingContracts) (audits subfolder).
* **Audits repo** — [`audits`](https://github.com/DZapIO/audits) (cross-product).

## Coming next

* Per-facet API documentation.
* Storage layout reference.
* Upgrade timelock + multi-sig policy.
* Event catalog.