Artchain is a platform that uses blockchain to create a decentralized, secure and transparent registry of artworks. Its main purpose is to support the creation and management of Online Reasoned Catalogs for visual artists, ensuring authenticity, protection and enhancement of artistic production. The platform offers artists, collectors, and gallerists a tool to certify and track the authenticity of works, simplifying the buying and selling process and protecting against fraud. It combines technology and art to introduce a new approach to art heritage management and enhancement. Artchain presents itself as a bridge between the traditional art world and decentralized systems, leveraging the features of blockchain - immutability, transparency and security - to certify the authenticity of works and create a decentralized system of digital ownership.