{
  "schema": "ULTRACON_ACCESS_LATTICE_V1",
  "version": "1.0",
  "updated": "2026-09-19",
  "principle": "Access claims are coordinates, not a monotonic ladder.",
  "dimensions": {
    "information_location": [
      "input_or_output_public",
      "hidden_state_or_internal_signal",
      "intervention_induced_state"
    ],
    "access_bearer": [
      "external_observer",
      "external_probe",
      "model_policy",
      "model_explicit_report"
    ],
    "privilege": [
      "none_established",
      "privileged_internal_information",
      "candidate_endogenous_privileged_access"
    ],
    "order": [
      "first_order_task_state",
      "own_state_target",
      "second_order_relation_to_own_state"
    ],
    "causal_role": [
      "predictive_only",
      "behaviorally_used",
      "causally_intervened"
    ],
    "generalization": [
      "in_distribution",
      "relabel_control",
      "OOD_or_cross_task"
    ]
  },
  "canonical_terms": {
    "privileged_internal_information": "Information decodable from model-internal variables that is unavailable to a matched public input-output observer. This is an experimenter-access claim.",
    "endogenous_privileged_access": "A candidate property in which the model itself has reliable task-relevant access that exceeds matched external observers and survives shortcut controls.",
    "second_order_metacognition": "A representation or control process explicitly about the model's own first-order cognitive state, requiring second-order targeting and causal/generalization evidence."
  },
  "cuts": [
    "external_decodability != endogenous_privileged_access",
    "endogenous_privileged_access != second_order_metacognition",
    "second_order_metacognition != phenomenal_consciousness",
    "reasoning_trace != hidden_state",
    "self_prediction != privileged_access"
  ],
  "key_sources": [
    "SRC-ASHUACH-ACL-2026",
    "SRC-SINGH-COLM-2026",
    "SRC-ACKERMAN-ICLR-2026",
    "SRC-KUMARAN-CONFIDENCE-2026",
    "SRC-ZENG-EMNLP-2026",
    "SRC-ANTHROPIC-INTROSPECTION-2025",
    "SRC-REN-UA-BENCH-ACL-2026"
  ],
  "tests": [
    "UCF-23",
    "UCF-30",
    "UCF-31",
    "UCF-43"
  ],
  "guardrail": "No coordinate in this lattice entails M5."
}