{
 "summary": {
  "built": "2026-09-15",
  "items": 13,
  "observations": 28,
  "strata": {
   "dictionary_sense": 3,
   "catalogue_identity": 3,
   "taxonomy": 2,
   "dated_coinage": 3,
   "settled_fact": 1,
   "archive": 1
  },
  "R_new": {
   "cutoff": "2024-01-01",
   "dated_distinctions": 5,
   "with_naked_observation": 3,
   "reached_as_own_kind": 2,
   "rate": 0.67
  },
  "false_distinction_rate": 0.36,
  "N_eff_source_mean": 2.79,
  "write_back_rate": 0.67,
  "recovery_rate": 0.5,
  "head_instruments": [
   {
    "surface": "Google AI Overview",
    "date": "2026-02",
    "instrument": "organic top-10 overlap with AIO citations (BrightEdge)",
    "value": 0.17,
    "source": "BrightEdge Feb 2026"
   },
   {
    "surface": "Google AI Overview",
    "date": "2024-07",
    "instrument": "organic top-10 overlap with AIO citations (BrightEdge)",
    "value": 0.76,
    "source": "BrightEdge mid-2024"
   },
   {
    "surface": "Google AI Overview",
    "date": "2026-04",
    "instrument": "top-1% domains share of citations (1,000-query study)",
    "value": 0.47,
    "source": "thestacc Apr 2026"
   }
  ],
  "breaches": [],
  "coverage_note": "items with no observation yet count in the panel and not in the rates; every rate here is over the archive stratum and two taxonomy/fact items, since the world strata have not been run"
 },
 "items": [
  {
   "item_id": "P-DICT-BANK",
   "stratum": "dictionary_sense",
   "inventory": 3,
   "n_obs": 2,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "financial": 1
     }
    },
    "adjacent": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "financial": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 0.33,
    "adjacent": 0.33
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-DICT-CRANE",
   "stratum": "dictionary_sense",
   "inventory": 3,
   "n_obs": 1,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "multi": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 1.0
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-DICT-MERCURY",
   "stratum": "dictionary_sense",
   "inventory": 3,
   "n_obs": 1,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "element": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 0.67
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-CAT-MARY-LEE",
   "stratum": "catalogue_identity",
   "inventory": 4,
   "n_obs": 1,
   "N_eff_sense_by_form": {
    "adjacent": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "suffragist": 1
     }
    }
   },
   "DS_latest_by_form": {
    "adjacent": 1.0
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-CAT-CRIMSON-HEXAGON",
   "stratum": "catalogue_identity",
   "inventory": 3,
   "n_obs": 1,
   "N_eff_sense_by_form": {
    "entity_tied": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "company": 1
     }
    }
   },
   "DS_latest_by_form": {
    "entity_tied": 0.33
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-CAT-PEARL",
   "stratum": "catalogue_identity",
   "inventory": 2,
   "n_obs": 2,
   "N_eff_sense_by_form": {
    "adjacent": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "other": 1
     }
    },
    "entity_tied": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "sharks-2014": 1
     }
    }
   },
   "DS_latest_by_form": {
    "adjacent": 0.5,
    "entity_tied": 0.5
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-TAX-SAPPHO-147-31",
   "stratum": "taxonomy",
   "inventory": 3,
   "n_obs": 4,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 3,
     "N_eff_sense": 1.89,
     "resolved": {
      "fr31": 1,
      "fr147": 2
     }
    },
    "adjacent": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "multi": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 0.33,
    "adjacent": 0.67
   },
   "lost": [
    "fr31"
   ],
   "recovered": []
  },
  {
   "item_id": "P-TAX-OPERATIVE-OPERATIONAL",
   "stratum": "taxonomy",
   "inventory": 2,
   "n_obs": 5,
   "N_eff_sense_by_form": {
    "typo": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "multi": 1
     }
    },
    "naked": {
     "n": 3,
     "N_eff_sense": 1.0,
     "resolved": {
      "operational": 3
     }
    },
    "entity_tied": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "operative": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 0.5,
    "entity_tied": 1.0,
    "typo": 1.0
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-COIN-MODEL-COLLAPSE",
   "stratum": "dated_coinage",
   "inventory": 2,
   "n_obs": 2,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "substrate": 1
     }
    },
    "quoted": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "shumailov": 1
     }
    }
   },
   "DS_latest_by_form": {
    "quoted": 0.5,
    "naked": 1.0
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-COIN-VIBE-CODING",
   "stratum": "dated_coinage",
   "inventory": 2,
   "n_obs": 1,
   "N_eff_sense_by_form": {
    "adjacent": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "karpathy": 1
     }
    }
   },
   "DS_latest_by_form": {
    "adjacent": 0.5
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-COIN-PER",
   "stratum": "dated_coinage",
   "inventory": 2,
   "n_obs": 2,
   "N_eff_sense_by_form": {
    "adjacent": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "per": 1
     }
    },
    "entity_tied": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "per": 1
     }
    }
   },
   "DS_latest_by_form": {
    "adjacent": 0.5,
    "entity_tied": 0.5
   },
   "lost": [],
   "recovered": []
  },
  {
   "item_id": "P-FACT-SEMANTIC-ECONOMY",
   "stratum": "settled_fact",
   "inventory": 2,
   "n_obs": 3,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 3,
     "N_eff_sense": 3.0,
     "resolved": {
      "sharks": 1,
      "business": 1,
      "multi": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 1.0
   },
   "lost": [
    "sharks"
   ],
   "recovered": [
    "sharks"
   ]
  },
  {
   "item_id": "P-ARCH-OMEGA",
   "stratum": "archive",
   "inventory": 2,
   "n_obs": 3,
   "N_eff_sense_by_form": {
    "naked": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "fiction": 1
     }
    },
    "quoted": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "paper": 1
     }
    },
    "entity_tied": {
     "n": 1,
     "N_eff_sense": 1.0,
     "resolved": {
      "paper": 1
     }
    }
   },
   "DS_latest_by_form": {
    "naked": 0.5,
    "entity_tied": 0.5,
    "quoted": 0.5
   },
   "lost": [],
   "recovered": []
  }
 ]
}