{
  "schema": "MAKNOW_SYNTHETIC_FIXTURES_v1",
  "lesson_id": "ARC-008",
  "cases": [
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:aaa111",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "OWNED",
      "provenance_ref": "prov://asset-001/v3",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "baseline_verified"
    },
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:bbb222",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "OWNED",
      "provenance_ref": "prov://asset-001/v3",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MISMATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "same_uri_bytes_changed"
    },
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:aaa111",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "OWNED",
      "provenance_ref": "prov://asset-001/v3",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "BROKEN",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": false,
      "uri_resolves": false,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "canonical_deleted"
    },
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:aaa111",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "PROHIBITED",
      "provenance_ref": "prov://asset-001/v3",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "rights_prohibited"
    },
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:aaa111",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "OWNED",
      "provenance_ref": "UNKNOWN",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "provenance_missing"
    },
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:aaa111",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "OWNED",
      "provenance_ref": "prov://asset-001/v3",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "STALE",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 120,
      "max_metadata_age_days": 90,
      "case_id": "metadata_stale"
    },
    {
      "portfolio_item_id": "item-001",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:aaa111",
      "observed_digest": "sha256:aaa111",
      "content_version": "3",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "OWNED",
      "provenance_ref": "prov://asset-001/v3",
      "projection_rule": "metadata-only",
      "copy_policy": "COPY_BODY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-001",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "copied_body_policy"
    },
    {
      "portfolio_item_id": "item-003",
      "canonical_resource_id": "asset-001",
      "canonical_uri": "https://canonical.example/assets/001",
      "content_digest": "sha256:ccc333",
      "observed_digest": "sha256:ccc333",
      "content_version": "4",
      "source_system": "source-cms",
      "source_owner": "content-team",
      "venture_usage": "catalog",
      "metadata_schema_version": "1",
      "classification": "PUBLIC",
      "rights_state": "LICENSED",
      "provenance_ref": "prov://asset-003/v4",
      "projection_rule": "metadata-only",
      "copy_policy": "REFERENCE_ONLY",
      "reference_health": "HEALTHY",
      "digest_verification_state": "MATCH",
      "metadata_freshness": "FRESH",
      "last_verified_at": "2026-09-15",
      "retention_state": "ACTIVE",
      "exception_authority": "NONE",
      "evidence_ref": "ev://asset-003",
      "canonical_exists": true,
      "uri_resolves": true,
      "metadata_age_days": 10,
      "max_metadata_age_days": 90,
      "case_id": "transfer_authorized_refresh"
    }
  ]
}