The metadata representation (instance) of each openMINDS metadata schema has to be provided as JSON-LD. For a graph database and correspondingly designed metadata models, a full metadata description of a research product includes multiple, interlinked metadata instances representing various schemas.

JSON-LD is a powerful, lightweight Linked Data format, ideal for storing such collections of interlinked metadata instances of a graph database (e.g., the EBRAINS Knowledge Graph).

Please find below, a general description of a typical JSON-LD as used in the EBRAINS Knowledge Graph and the different approaches in place for writing a metadata description for your research product in form of an openMINDS conform JSON-LD metadata collection.