Challenge
A defined buyer query set and the baseline citation surface before any work begins.
Intervention
The specific infrastructure, content, and authority work deployed to change the evidence available to AI systems.
Measurement
A phase-gated comparison of citation share, source context, and commercial relevance over time.
Publishing standard
Zennith will only publish case evidence supported by verified before-and-after measurement and client approval. Until that material is available, this page documents the method rather than inventing client outcomes.