arXiv:2508.00827v1 Announce Type: cross Abstract: Open Government Data (OGD) initiatives aim to enhance transparency and public participation by making government data openly accessible. However, structuring legal norms for machine readability remains a critical challenge for advancing Legal Tech applications such as Legal Knowledge Graphs (LKGs). Focusing on the Normas.leg.br portal initiative by the Brazilian National Congress, we propose a unified mapping of Brazilian legislation to the schema.org/Legislation vocabulary via JSON-LD and Linked Data. Our approach covers both the conceptual "Norm" entity (mapped to sdo:Legislation) and its digital publications or manifestations (mapped to sdo:LegislationObject). We detail key properties for each type, providing concrete examples and considering URN identifiers (per the LexML standard), multilingual support, versioning in the Official Journal, and inter-norm relationships (e.g., citations and references). Our structured schema improves the quality and interoperability of Brazilian legal data, fosters integration within the global OGD ecosystem, and facilitates the creation of a wor