{
  "id": "palimpsest-news:erasure-observatory",
  "slug": "erasure-observatory",
  "url": "https://palimpsest.info/news/erasure-observatory/",
  "signal_id": "erasure-observatory",
  "headline": "The composite erasure index stands at 41.6",
  "dek": "The roll-up keeps archive, redaction, repository and distribution evidence separate beneath one directional index.",
  "section": "erasure",
  "order": 1,
  "type": "analysis",
  "priority": "lead",
  "status": "live",
  "published_at": "2026-08-24T06:31:11Z",
  "modified_at": "2026-08-24T06:31:11Z",
  "claim_fingerprint": "sha256:a344100979c1bc4d2995f6562da667d996bcfbcea041791eea312eab1d6580ac",
  "metric": {
    "label": "erasure index",
    "value": 41.6,
    "unit": "index",
    "denominator": {
      "label": null,
      "value": null
    }
  },
  "claims": [
    {
      "type": "finding",
      "statement": "The current cross-layer erasure index is 41.6."
    }
  ],
  "evidence": {
    "url": "https://palimpsest.info/readings/erasure-observatory-latest.json",
    "input": {
      "filename": "erasure-observatory-latest.json",
      "sha256": "c3bb372cc4d6bff859ff39f73ade3a53dc95909b13894b75ed5f5504b1b45622",
      "bytes": 3917
    },
    "source_timestamp": "2026-08-24T06:31:11Z"
  },
  "method": {
    "summary": "See the complete embedded upstream payload and its raw feed",
    "version": 4
  },
  "limitations": [
    "The index combines heterogeneous erasure layers and indicates co-movement, not a count of deleted items."
  ],
  "related_signal_ids": [
    "wayback",
    "baike-redaction",
    "github-refuge",
    "app-storefront",
    "apple-censorship"
  ]
}