Planalto and LexML Brazil Link Presidential Acts Through Shared Legal Metadata

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The Planalto-LexML interoperability initiative connects the Presidential Palace's official publication systems with the LexML Brasil portal, giving presidential decrees a unique persistent identifier and standardized metadata. According to the report, Planalto has published official acts in LexML-compliant XML since 2019, and decrees in the Diário Oficial da União since 2021 include stable URIs. The arrangement is described as a technical linking layer rather than a centralized database, so Planalto keeps its own editorial system while LexML supplies the description and identifier scheme. The report says the metadata can support traceability for regulated AI systems used by agencies such as ANVISA and the Central Bank, though it states that these agencies are independent participants rather than part of the Planalto corpus.

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