- Fine-grained ownership model: Decide which actions require a user signature, an authorization key, or both.
- Distributed authorization: Require signatures from multiple authorization keys running across different servers.
- Multi-signature security: Enforce independent approvals for high-risk or high-value operations.
- Hierarchical approval structures: Nest a key quorum inside another key quorum, such as a “Security Team” quorum nested inside an “Org Admins” quorum.
Key quorums can include other key quorums as members (one level deep). A nested quorum counts as a
single member of the parent quorum. Once the nested quorum meets its own authorization threshold,
it counts as one approval toward the parent’s threshold.

