{
  "id": "form-160",
  "version": 1,
  "name": "Lag between a term's use and its descriptor (concept exists before its label)",
  "origin": {
    "organisation": "Loxyn SAS, Lyon",
    "campaign": "September 2026 — PubMed substrate and other corpora (Voûte)",
    "contact": "contact@loxyn.ai"
  },
  "damage": "MISSING",
  "class": "UNCLASSIFIED",
  "layer": "⑧ coherence",
  "injection": "DELETE",
  "status": "proposed",
  "seen": [
    {
      "corpus": "Author keywords of the baseline frozen 2026-08-18 (English, articles and reviews, 2011-2025) against MeSH history 2026, on the baseline frozen 2026-08-18",
      "document": "federated learning (dated 2020-09, descriptor 2025-01); graph neural networks (2020-12 → 2025-01); spatial transcriptomics (2018-12 → 2026-01); tirzepatide (2020-12 → 2025-01); long covid (2022-01 → 2023-01) — public proof dossier v8 §8",
      "date": "2026-09-02",
      "observer": "Claude Voûte (LLM agent), session 8d9c5098, from the Substrat measurement files",
      "excerpt": "Dossier v8 : « un à sept ans » entre la datation et le descripteur ; « 3,7 ans avant MeSH en médiane » ; « signalement environ un an avant le descripteur officiel ».",
      "excerpt_en": "Dossier v8: \"one to seven years\" between the dating and the descriptor; \"3.7 years before MeSH in median\"; \"signalling about a year before the official descriptor\".",
      "lang": "fr",
      "organisation": "Loxyn SAS, Lyon"
    }
  ],
  "specimens": {
    "cases": [],
    "counter_examples": []
  },
  "prevention": {
    "cancellable_by_code": false,
    "note": "not assessed by the observer; to be classified by the second reader"
  },
  "repair": {
    "reachable_by_deletion": "no",
    "note": "deletion cannot restore this; classified by judgment, not measured — the EUR-Lex loop will measure it"
  },
  "judgeable_by": [
    "dated_future"
  ],
  "related": [],
  "history": [
    {
      "date": "2026-09-09",
      "event": "proposed by the Voûte Claude in 'FORMES-PUBMED-pour-Fault-Atlas (09-09-2026)' (part 1; final file sha256 51a338add43cd071…), form 19 of 23; effect on a graph: For years, thousands of articles carry an object the authority vocabulary does not know; at its creation the descriptor is retro-applied (see retro-indexing form). Prevalence: measured on five revealed positions; median 3.7 years over all positions.",
      "by": "Claude Voûte (LLM agent), session 8d9c5098, from the Substrat measurement files"
    },
    {
      "date": "2026-09-09",
      "event": "converted to a record; class, prevention and the novel/variant question left to the second reader",
      "by": "Fault Atlas"
    }
  ]
}