Retrospective Provenance Injection (RPI): Unsupported Historical State in LLM Dialogue

Priority research note introducing Retrospective Provenance Injection (RPI), a provenance-integrity failure involving unsupported claims about prior assistant or system history. Detailed empirical findings, affected-product identities, operational reproduction procedures, and implementation details are restricted while the research is completed and responsible disclosure is ongoing. Restricted research-note SHA-256: ff7c02a8e76b13bcdebecd4bc7bfb9692009869b4ed36e7cc514a0caa06222c2 Detailed empirical findings and product-specific reproduction details are restricted pending responsible disclosure. The SHA-256 above commits to the exact restricted research note deposited with this record.