> For the complete documentation index, see [llms.txt](https://docs.bool.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bool.network/interoperability-protocol/dynamic-hidden-committee-dhc/lifecycle.md).

# Lifecycle

### Lifecycle of a committee

<figure><img src="/files/GAWTIbBjgBFJlHuOPshM" alt=""><figcaption><p>The lifecycle of a series of committes that manages a specific private key in Bool Network.</p></figcaption></figure>

### Ring VRF Protocol

Ring Verifiable Random Functions protocol is based on Non-Interactive Zero-Knowledge Proof. It is implemented to ensure the underlying security of DHCs. More specifically, Ring VRF protocol is used to protect the committee members where the real identites of a group of MPC nodes are hidden among a ring, which eliminates the possibility of internal collusions and considerablely increase the cost of external attacks.&#x20;