{
  "version": "rowva_before_after_diff_v1",
  "sample": "crm_contacts",
  "generated_at": "2026-06-06T00:00:00Z",
  "source": {
    "row_count": 8,
    "column_count": 8
  },
  "canonical": {
    "entity_count": 6,
    "entity_counts": {
      "contact": 6
    },
    "review_required_entities": 4
  },
  "summary": [
    {
      "change": "contact_id_normalization",
      "count": 6
    },
    {
      "change": "company_alias_normalization",
      "count": 3
    },
    {
      "change": "date_normalization",
      "count": 5
    },
    {
      "change": "duplicate_or_summary_row_exclusion",
      "count": 2
    }
  ]
}