BeliefState Get Research Visual

Use this endpoint when you have already identified a specific BeliefState research visual (via list_research_visuals) and need to retrieve its underlying structured data — chart points, table rows, or region descriptors. Prefer this over general research endpoints when you need paginated, time-stamped, or region-specific access to a saved analyst visual. Ideal when backtesting against historical analyst views using the as_of parameter.

• Invalid visual_id format (not 64-char hex) returns validation error
• visual_id not found returns 404 or empty result
• region_id not matching a valid region of the visual returns error
• row_offset exceeding available data returns empty rows
• Invalid as_of datetime format returns schema validation error
• Invalid context_assessment_id UUID format returns validation error
• Payment failure via x402 protocol blocks access
• Expired or unauthorized belief_id returns access denied