JSON-LD or YAML-LD can be stored in the frontmatter in Markdown documents; Schema.org is an RDFS schema with Classes and Properties: https://schema.org/Blog h

JSON-LD or YAML-LD can be stored in the frontmatter in Markdown documents; Schema.org is an RDFS schema with Classes and Properties: https://schema.org/Blog https://schema.org/Blog https://schema.org/BlogPosting https://schema.org/BlogPosting Syntax examples can be found below the list of Properties on a "JSON-LD" tabs The JSON schema for schema.org in lexiq-legal/pydantic_schemaorg aren't yet rebuilt for pydantic v2 FWIU; https://github.com/lexiq-legal/pydantic_schemaorg https://github.com/lexiq-legal/pydantic_schemaorg W3C SHACL Shapes and Constraints Language is the Linked Data schema valuation spec which is an alternative to JSON schema, of which there are many implementations.