{
  "id": "palimpsest-news:undertext",
  "slug": "undertext-differential-fusion",
  "url": "https://palimpsest.info/news/undertext-differential-fusion/",
  "signal_id": "undertext",
  "headline": "UNDERTEXT differential fusion: no current finding",
  "dek": "The source is stale. Palimpsest keeps the availability and evidence record visible without publishing retained values as current news.",
  "section": "attention",
  "order": 8,
  "type": "analysis",
  "priority": "high",
  "status": "stale",
  "published_at": "2026-08-25T00:57:18Z",
  "modified_at": "2026-08-25T00:57:18Z",
  "claim_fingerprint": "sha256:4bd4edc49218e2e302a6d81d19577f713b49ca2341a10bd6bc8150a3064abd38",
  "metric": {
    "label": null,
    "value": null,
    "unit": null,
    "denominator": {
      "label": null,
      "value": null
    }
  },
  "claims": [
    {
      "type": "availability",
      "statement": "No current finding is published for UNDERTEXT differential fusion because the source status is stale."
    }
  ],
  "evidence": {
    "url": "https://palimpsest.info/readings/undertext-latest.json",
    "input": {
      "filename": "undertext-latest.json",
      "sha256": "d4398c8bec7cb76e713ca9815c6531293b09b817fb4ba3796e4b540157c7199b",
      "bytes": 266822
    },
    "source_timestamp": "2026-08-25T00:57:18Z"
  },
  "method": {
    "summary": "Offline fusion of every committed sample/reconstruction through china_observation.enrich_observation, URL clustering, and honest cross-signal joins. A matching URL/host/digest on the existing node lake attaches a sanitized receipt; an empty or absent lake abstains. Optional live surfaces require UNDERTEXT_LIVE_SURFACES=1 and an injected or operator fetch.",
    "version": 1
  },
  "limitations": [
    "Current finding withheld: freshness deadline has passed",
    "Fusion inherits the limits of its inputs; archive-status rows are not relabelled as deletions, and optional Wikipedia live surfaces stay gated."
  ],
  "related_signal_ids": [
    "wayback",
    "weibo-hotsearch",
    "ddti"
  ]
}