Verígrafo – AI-powered temporal knowledge graph for Spain’s official bulletins

Summary: Verígrafo is a temporal knowledge graph indexing over 300,000 official Spanish legal documents with 38.7 million nodes and 58 million relationships. It enables precise, citation-backed searches without hallucinations common in LLM-based tools, linking results to exact PDF paragraphs.

What it does

Verígrafo maps and connects legal data from Spain’s official bulletins (BOE, BORME, BOC) to provide two search modes: Quick Search for semantic queries and Deep Search for entity and modification cross-referencing, returning verified citations with exact PDF locations.

Who it's for

It is designed for users needing accurate, structured access to Spain’s official legal texts, such as businesses and legal professionals.

Why it matters

It solves the problem of unstructured, disconnected legal PDFs and eliminates hallucinations found in LLM-based searches by providing verifiable, precise legal information.