{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://openpermit.dev/spec/ori-core-0.1.schema.json",
  "title": "Open Regulatory Infrastructure Core v0.1 Draft",
  "description": "Recovery-derived draft schema for addressable, provenance-first, jurisdiction-aware and challengeable regulatory graph objects.",
  "type": "object",
  "required": ["id", "type", "version"],
  "properties": {
    "id": {"type": "string", "minLength": 1},
    "type": {"type": "string", "minLength": 1},
    "version": {"type": "string", "minLength": 1},
    "effective_from": {"type": ["string", "null"], "format": "date-time"},
    "effective_to": {"type": ["string", "null"], "format": "date-time"},
    "jurisdiction": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "uniqueItems": true},
    "source": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "uniqueItems": true},
    "derived_from": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "uniqueItems": true},
    "supersedes": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "uniqueItems": true},
    "metadata": {"type": "object", "additionalProperties": true}
  },
  "allOf": [
    {
      "if": {"properties": {"type": {"const": "Assertion"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/assertion"}
    },
    {
      "if": {"properties": {"type": {"const": "MappingAssertion"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/mappingAssertion"}
    },
    {
      "if": {"properties": {"type": {"const": "Verification"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/verification"}
    },
    {
      "if": {"properties": {"type": {"const": "Decision"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/decision"}
    },
    {
      "if": {"properties": {"type": {"const": "Challenge"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/challenge"}
    },
    {
      "if": {"properties": {"type": {"const": "Source"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/sourceObject"}
    },
    {
      "if": {"properties": {"type": {"const": "Evidence"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/evidence"}
    },
    {
      "if": {"properties": {"type": {"const": "Edge"}}, "required": ["type"]},
      "then": {"$ref": "#/$defs/edge"}
    }
  ],
  "$defs": {
    "ref": {
      "type": "string",
      "minLength": 1,
      "description": "Stable ORI object identifier or external canonical identifier."
    },
    "evidenceRefs": {
      "type": "array",
      "items": {"$ref": "#/$defs/ref"},
      "uniqueItems": true,
      "default": []
    },
    "assertion": {
      "required": ["subject", "predicate", "asserted_by"],
      "properties": {
        "subject": {"$ref": "#/$defs/ref"},
        "predicate": {"type": "string", "minLength": 1},
        "object": {},
        "asserted_by": {"$ref": "#/$defs/ref"},
        "confidence": {"type": ["number", "null"], "minimum": 0, "maximum": 1},
        "evidence": {"$ref": "#/$defs/evidenceRefs"}
      }
    },
    "mappingAssertion": {
      "required": ["maps_from", "maps_to", "mapping_type", "mapped_by", "status"],
      "properties": {
        "maps_from": {"$ref": "#/$defs/ref"},
        "maps_to": {"$ref": "#/$defs/ref"},
        "mapping_type": {"type": "string", "minLength": 1},
        "mapped_by": {"$ref": "#/$defs/ref"},
        "status": {"type": "string", "enum": ["proposed", "accepted", "rejected", "superseded", "withdrawn"]},
        "confidence": {"type": ["number", "null"], "minimum": 0, "maximum": 1},
        "evidence": {"$ref": "#/$defs/evidenceRefs"},
        "rationale": {"type": ["string", "null"]}
      }
    },
    "verification": {
      "required": ["validator", "validator_version", "inputs", "requirements", "outcome", "executed_at"],
      "properties": {
        "validator": {"$ref": "#/$defs/ref"},
        "validator_version": {"type": "string", "minLength": 1},
        "inputs": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "minItems": 1},
        "requirements": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "minItems": 1},
        "outcome": {"type": "string", "enum": ["pass", "fail", "indeterminate", "error", "not-applicable"]},
        "evidence": {"$ref": "#/$defs/evidenceRefs"},
        "executed_at": {"type": "string", "format": "date-time"},
        "determinism": {"type": "string", "enum": ["deterministic", "non-deterministic", "mixed", "unknown"]}
      }
    },
    "decision": {
      "required": ["subject", "decision_type", "decided_by", "decided_at"],
      "properties": {
        "subject": {"$ref": "#/$defs/ref"},
        "decision_type": {"type": "string", "minLength": 1},
        "decided_by": {"$ref": "#/$defs/ref"},
        "decided_at": {"type": "string", "format": "date-time"},
        "justified_by": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "uniqueItems": true},
        "evidence": {"$ref": "#/$defs/evidenceRefs"},
        "conditions": {"type": "array", "items": {"$ref": "#/$defs/ref"}, "uniqueItems": true}
      }
    },
    "challenge": {
      "required": ["subject", "challenged_by", "grounds", "statement", "status", "created_at"],
      "properties": {
        "subject": {"$ref": "#/$defs/ref"},
        "challenged_by": {"$ref": "#/$defs/ref"},
        "grounds": {"type": "string", "minLength": 1},
        "statement": {"type": "string", "minLength": 1},
        "evidence": {"$ref": "#/$defs/evidenceRefs"},
        "status": {"type": "string", "enum": ["open", "answered", "sustained", "rejected", "withdrawn", "superseded"]},
        "created_at": {"type": "string", "format": "date-time"},
        "response_to": {"type": ["string", "null"], "minLength": 1},
        "resolved_by": {"type": ["string", "null"], "minLength": 1}
      }
    },
    "sourceObject": {
      "required": ["locator", "authority_class"],
      "properties": {
        "locator": {"type": "string", "minLength": 1},
        "title": {"type": ["string", "null"]},
        "publisher": {"type": ["string", "null"]},
        "edition": {"type": ["string", "null"]},
        "checksum": {"type": ["string", "null"]},
        "license_status": {"type": ["string", "null"]},
        "retrieved_at": {"type": ["string", "null"], "format": "date-time"},
        "authority_class": {"type": "string", "minLength": 1}
      }
    },
    "evidence": {
      "required": ["evidence_type"],
      "properties": {
        "evidence_type": {"type": "string", "minLength": 1},
        "artifact": {"type": ["string", "null"]},
        "captured_by": {"type": ["string", "null"]},
        "captured_at": {"type": ["string", "null"], "format": "date-time"},
        "spatial_anchor": {"type": ["string", "null"]},
        "integrity": {"type": "object", "additionalProperties": true}
      }
    },
    "edge": {
      "required": ["predicate", "from", "to"],
      "properties": {
        "predicate": {"type": "string", "minLength": 1},
        "from": {"$ref": "#/$defs/ref"},
        "to": {"$ref": "#/$defs/ref"},
        "attributes": {"type": "object", "additionalProperties": true},
        "evidence": {"$ref": "#/$defs/evidenceRefs"}
      }
    }
  },
  "additionalProperties": true
}