# ArCo: the Italian Cultural Heritage Knowledge Graph

## TL;DR

ArCo is a comprehensive Italian Cultural Heritage knowledge graph with 169 million triples, based on official catalogues, providing a valuable resource for cultural data integration and analysis.

## Contribution

It introduces a large-scale, structured knowledge graph for Italian cultural heritage, including tools, documentation, and community engagement, based on official catalogues.

## Key findings

- Contains 169 million triples about 820,000 entities
- Includes a SPARQL endpoint and conversion software
- Based on official Italian cultural heritage catalogues

## Abstract

ArCo is the Italian Cultural Heritage knowledge graph, consisting of a network of seven vocabularies and 169 million triples about 820 thousand cultural entities. It is distributed jointly with a SPARQL endpoint, a software for converting catalogue records to RDF, and a rich suite of documentation material (testing, evaluation, how-to, examples, etc.). ArCo is based on the official General Catalogue of the Italian Ministry of Cultural Heritage and Activities (MiBAC) - and its associated encoding regulations - which collects and validates the catalogue records of (ideally) all Italian Cultural Heritage properties (excluding libraries and archives), contributed by CH administrators from all over Italy. We present its structure, design methods and tools, its growing community, and delineate its importance, quality, and impact.