The Veracity Engine compares the text of grounded search responses directly against the underlying source web pages to classify facts as survived, lost, or distorted, computing an aggregate fidelity score.

sequenceDiagram
    participant Query as User Query
    participant Engine as Veracity Engine
    participant LLM as Grounded LLM
    participant Source as Source URL

    Query->>Engine: Submit Query
    Engine->>LLM: Perform Grounded Search
    LLM-->>Engine: Response & Grounding Citations
    Engine->>Source: Fetch Full Page Content
    Source-->>Engine: Raw Page Content
    Engine->>LLM: Evaluate Prompt vs Content
    LLM-->>Engine: Classify Facts (Survived, Lost, Distorted)
    Engine-->>Query: Return Aggregate Fidelity Score