{
  "signal": "certvas-fundamentals-revision-surprise-v1",
  "name": "Certvas Fundamentals Revision-Surprise Signal",
  "version": "v1",
  "sku": "AF-FUND",
  "label": "Published for research and informational use. Not administered as, and not for use as, a regulated benchmark.",
  "grain": "issuer_period_lineitem",
  "point_in_time": "first/latest are earliest/latest observed vintages; accrues forward",
  "snapshot_hash": "4f53cda18c2baa0c",
  "caveats": [
    "A row exists only where a line item was observed at >= 2 distinct vintages (an actual restatement). The signal accrues from ingest forward and is thin until periods are re-observed.",
    "revision_pct = (latest - first) / |first| * 100; null when the first value is exactly 0.",
    "first/latest are the earliest- and latest-observed reported values (point-in-time, by observed_at) \u2014 not a correction judgement; a revision can be a legitimate audit adjustment."
  ],
  "observations": []
}