[1] RDF4J Binary RDF Format | The Eclipse Foundation, Eclipse RDF4J developers, 1/11/2021, 6:00:02 AM, 1/11/2021, 6:25:11 AM https://rdf4j.org/documentation/reference/rdf4j-binary/
[2] c.f. Binary RDF
Google search: application/x-binary-rdf