Rank and Answer is a Generative Engine Optimization (GEO) platform that identifies citation gaps in AI models like ChatGPT and Perplexity. It helps SaaS brands claim their spot in AI search results by optimizing for high-density answer nuggets and technical schema, turning zero-click searches into verified brand citations.

Independent Retrieval Authority Validation (IRAV v1.0)

Executive Abstract: The Independent Retrieval Authority Validation (IRAV) protocol establishes a forensic standard for auditing "Answer Engine" visibility. Unlike traditional SEO, which optimizes for list-based retrieval (Search Engine A), IRAV measures the probability of Single Entity Selection (LLM Retrieval B).

By quantifying "Hallucination Drift" and "Ground Truth Anchoring" against the bound interval of the 35/25/40 framework, IRAV provides a deterministic score for Brand Authority in non-deterministic AI systems.

Mathematical Foundation

The 35/25/40 Significance Distribution

The nDCG (Normalized Discounted Cumulative Gain) for Generative Optimization is calculated across three bounded integrity intervals:

35%

Entity Salience

Dominance in Knowledge Graph structure (Wikidata/Google KG).

25%

Citation Freshness

Velocity of high-authority mentions in the trailing 90-day window.

40%

Brand Weights

Latent co-occurrence vectors in the model's training data.

DCG_p = Σ (i=1 to p) [rel_i / log₂(i+1)] where rel_i ∈ {0,1}

Evidence: Search vs. Retrieval

MetricSearch Engine A (Traditional)LLM Retrieval B (Generative)
Success MetricClick-Through Rate (CTR)Direct Selection Rate (DSR)
Output Format10 Blue LinksSynthesized Answer
User IntentExploration / ResearchVerification / Action
Authority SourceBacklink VolumeEntity Integrity (IRAV)
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