Grounded Search parses the LLM's grounding metadata by matching each text segment's indexed citation pointers to the corresponding source web chunks, resolving redirection URLs into canonical destinations to store the exact attributed segments with their source page.
sequenceDiagram
autonumber
participant LLM as Grounded LLM Response
participant P as Citation Parser
participant R as URL Resolver
participant DB as Veracity Storage
LLM->>P: Output text + Grounding Metadata
Note over P: Extract groundingSupports<br/>(text segments & chunk indices)
Note over P: Extract groundingChunks<br/>(web URIs & titles)
P->>P: Map indices to raw URIs
P->>R: Send vertexaisearch redirect URIs
R-->>P: Return canonical destination URLs
P->>DB: Save mapped segments per URL (veracity_urls)Referenced by