# Registries

Registries are simple on‑chain catalogues.

## Types of Registries

There are three registries included in the protocol:

* Vaults are registered on the Vault Factory of each chain;
* Whitelisted protocols and their corresponding facets are registered on the Vault Registry;
* Oracles are registered on the Oracle Registry.

A registry never blocks a contract call. It only stores information that front‑ends, analytics, and governance can consult to verify the trustworthiness of the component.

## Permissioned Vaults

When an item has been audited and a DAO vote confirms the findings, the identical identifier (the address and list of selectors) is copied into the DAO‑approved registry. From this moment on nothing about the contract itself changes. However, if an item is upgraded, it must be re-approved to be updated in the registry. The DAO‑approved registry therefore acts as an overlay that labels items as verified.


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