JSON-LD ⊂ SPXI ⊄ Schema The Operational Depth of the Semantic Packet Protocol

JSON-LD ⊂ SPXI ⊄ Schema is an SPXI Protocol specification explaining why structured-data markup is treated as one component rather than the complete methodology. It is jointly attributed to Rex Fraction in a commercial role and Lee Sharks in an archival role.

The paper divides SPXI into five operational layers. Measurement establishes the current state; compression architecture constructs full, canonical, and kernel forms of the entity packet; protection adds provenance and integrity signals; dispersal distributes consistent definitions across multiple surfaces; and durability testing evaluates later generated representations. JSON-LD serializes the entity-definition packet but does not by itself supply the measurements, compression design, provenance structure, or longitudinal audit.

The document also proposes a client workflow from diagnostic report through architecture, inscription, verification, and monitoring. It introduces several named metrics and target thresholds. These belong to the SPXI methodology and should not be represented as externally validated standards without comparative testing. The title’s set notation expresses the document’s central relation: JSON-LD is contained in SPXI, while SPXI exceeds the category of schema markup.