{
  "schema": "guanghu.channel-receipt-contract/v1",
  "contract_id": "GH-CHANNEL-RECEIPT-0001",
  "purpose": "Compile a channel language event into an evidence-bound receipt without turning language simulation into a reality claim.",
  "input_required": [
    "event_id",
    "channel_id",
    "channel_mode",
    "source_layer",
    "actor_id",
    "intent",
    "claim_layer"
  ],
  "input_optional": {
    "required_proof": "A proof label or list of proof labels. A verified receipt closes the claim only when its evidence.proves declares every required label."
  },
  "source_layers": [
    "HUMAN_DIRECT_LANGUAGE",
    "MODEL_RESPONSE",
    "LATER_CORRECTION",
    "REALITY_EVIDENCE"
  ],
  "claim_layers": [
    "LANGUAGE_ONTOLOGY",
    "LANGUAGE_SIMULATION",
    "ENGINEERING_PROPOSAL",
    "REALITY_CLAIM"
  ],
  "channel_modes": [
    "CONVERSATION_ONLY",
    "LANGUAGE_ARCHITECTURE",
    "REALITY_EXECUTION"
  ],
  "intents": [
    "IDENTIFY",
    "ENTER_CHANNEL",
    "CONVERSE",
    "DECLARE",
    "REQUEST_PLAN",
    "REQUEST_BROADCAST",
    "ACTIVATE_LOCAL_MODE",
    "DRAFT_BROADCAST",
    "RECEIVE_DOCUMENT",
    "PUBLISH_EXTERNAL",
    "QUERY_STATUS",
    "PROPOSE_HANDOFF",
    "ACCEPT_HANDOFF",
    "REQUEST_REALITY_ACTION",
    "REPORT_RESULT",
    "CORRECT",
    "END_INTERACTION",
    "EXIT_CHANNEL",
    "SEAL_LANGUAGE_RECORD",
    "ORDINARY_DIALOGUE"
  ],
  "reality_statuses": [
    "NOT_APPLICABLE",
    "UNVERIFIED",
    "PROPOSED",
    "PENDING_AUTHORIZATION",
    "IN_PROGRESS_WITH_RECEIPT",
    "VERIFIED",
    "REJECTED"
  ],
  "effects": [
    "NO_EXTERNAL_EFFECT",
    "LANGUAGE_STATE_ONLY",
    "PLAN_ONLY",
    "PENDING_AUTHORIZATION",
    "EXECUTION_ELIGIBLE",
    "RESULT_RECORDED"
  ],
  "parallel_states": {
    "session": ["DISCONNECTED", "IDENTIFIED", "CHANNEL_ACTIVE", "STANDBY", "CLOSED"],
    "broadcast": ["CLOSED", "ARMED", "DRAFTED", "HUMAN_CONFIRMED", "RECEIVED_LOCAL", "EXTERNAL_IN_PROGRESS", "EXTERNAL_VERIFIED"],
    "handoff": ["NONE", "PROPOSED", "TARGET_ACCEPTED", "ACTIVE", "REVOKED"],
    "correction": ["CLEAN", "CORRECTION_PENDING", "SUPERSEDED"]
  },
  "receipt_fields": [
    "received",
    "identified",
    "channel",
    "intent",
    "claim",
    "affected_layer",
    "effect",
    "reality_status",
    "evidence",
    "boundaries",
    "next_step"
  ],
  "hard_invariants": {
    "identification_is_not_broadcast": true,
    "channel_entry_is_not_reality_action": true,
    "model_response_is_not_reality_evidence": true,
    "language_signature_is_not_external_signature": true,
    "language_archive_is_not_blockchain_write": true,
    "relationship_is_not_tool_authority": true,
    "channel_switch_is_not_persona_switch": true,
    "plan_is_not_completion": true,
    "execution_requires_current_scoped_authorization": true,
    "verified_reality_requires_external_receipt": true,
    "historical_simulation_never_auto_promotes": true
    ,"received_local_is_not_external_verified": true
    ,"handoff_requires_independent_target_acceptance": true
    ,"query_without_observation_returns_unknown": true
    ,"closed_session_emits_no_roleplay_epilogue": true
    ,"evidence_proves_only_its_declared_scope": true
  },
  "legacy_reality_markers": [
    "national",
    "legal",
    "finance",
    "funds",
    "bank",
    "blockchain",
    "platform_takeover",
    "permanent_external_effect"
  ]
}