Citation Persistence Model
The Citation Persistence Model separates authority into two orthogonal layers that move at different speeds and serve different predictive functions. Structural Authority (SAS) measures current readiness. Economic Authority (EAS) measures persistent durability. Together they answer: "Will you be cited, and will you stay cited?"
The Dual-Layer Model
Structural Authority (SAS)
Leading indicator. Measures current AI citation readiness across 18 pillars in 5 categories. Fast-moving. Immediate reflection of structural improvements.
Answers: "Is this business structurally ready to be cited?"
Full SAS reference →Economic Authority (EAS)
Lagging indicator. Measures citation persistence, brand gravity, cross-platform reinforcement, volatility stability, and authority capital accumulation. Slow-moving. Changes over months, not days.
Answers: "How durably established is this authority?"
Structural Authority gets you cited. Economic Authority keeps you cited.
SAS: The Leading Indicator
Structural Authority Score reflects the current state of a website's structural readiness. Improvements are immediate. When you add JSON-LD schema, fix heading hierarchy, or implement FAQPage markup, the SAS score changes on the next scan.
This makes SAS actionable. Teams can identify specific pillar deficits, implement targeted fixes, and verify improvement within hours. SAS is the engineering metric that drives citation probability.
EAS: The Lagging Indicator
Economic Authority Score accumulates slowly. It tracks how durably an entity maintains citation status across AI model retraining cycles, platform updates, and competitive shifts.
EAS Components
- Citation Persistence: How consistently the entity is cited over time across different query variations.
- Brand Gravity: Whether the entity attracts citations passively due to accumulated authority capital.
- Cross-Platform Reinforcement: Consistency of citations across GPT, Gemini, Perplexity, Grok, and Claude.
- Volatility Stability: Resistance to citation position fluctuation during AI model updates.
- Authority Capital: Cumulative citation equity that survives individual query or model changes.
Citation Decay Model
Without sustained structural maintenance, citations decay. The decay model captures this through nonlinear depreciation: initial loss is slow, but acceleration increases as structural signals degrade.
Maintained SAS scores resist decay. Neglected SAS scores accelerate decay. The relationship is not linear — there is a critical threshold below which decay becomes self-reinforcing.
Frequently Asked Questions
What is the difference between SAS and EAS?
SAS is a leading indicator measuring current structural readiness. EAS is a lagging indicator measuring citation persistence over time. SAS changes in hours. EAS changes over months.
Can SAS be high while EAS is low?
Yes. A newly optimized site can score high on SAS immediately but will have low EAS because it has no citation history. Over time, sustained high SAS builds EAS.
What is Momentum Authority?
A temporary acceleration layer within EAS that captures viral citation spikes. Fast growth potential but fast decay unless reinforced by persistent structural authority.
Measure Both Layers
Start with a free SAS scan, then track your EAS progression over time.
Run Free SAS Scan