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    },
    {
      "id": "github-refuge",
      "name": "GitHub as refuge",
      "description": "Watches a bounded public repository panel for disappearance and pressure events without equating an API failure with removal.",
      "layer": "content",
      "stage": "observation",
      "collection_mode": "passive",
      "status": "live",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
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        "GitHub public repositories"
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      "id": "research-corpus",
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      "description": "Tracks exact default-branch commit cursors and aggregate Git ref counts for five censorship-research repositories without republishing notice bodies, affected identifiers, URL test targets, keyword lists, or routing rules.",
      "layer": "content",
      "stage": "source-metadata",
      "collection_mode": "passive-upstream",
      "status": "live",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
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      "sources": [
        "github/gov-takedowns",
        "github/dmca",
        "citizenlab/test-lists",
        "citizenlab/chat-censorship",
        "gfwlist/gfwlist"
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      "latest": "readings/research-corpus-latest.json",
      "history": "readings/research-corpus-history.jsonl",
      "landing_page": "data.html#dataset-research-corpus",
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      "count_fields": [
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        "n_changed",
        "n_unchanged"
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        "name": "Metadata-only aggregate; repository-specific upstream licenses",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/docs/RESEARCH-CORPUS-INGEST.md"
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          "n_unchanged": 5
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        "method": "https://palimpsest.info/docs/RESEARCH-CORPUS-INGEST.md"
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    },
    {
      "id": "wayback",
      "name": "Wayback reconstruction",
      "description": "Reconstructs prior public states for watched URLs and separates deletion, mutation, reachability, and archival absence.",
      "layer": "content",
      "stage": "archive",
      "collection_mode": "passive",
      "status": "live",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "Internet Archive CDX"
      ],
      "latest": "readings/wayback-latest.json",
      "history": "readings/wayback-history.jsonl",
      "landing_page": "readings/index.html#content",
      "method": "docs/NEW-METHODS.md",
      "count_fields": [
        "n_watched",
        "n_deletions",
        "n_mutations",
        "n_reachable"
      ],
      "license": {
        "name": "Internet Archive terms; Palimpsest metadata MIT",
        "url": "https://archive.org/about/terms.php"
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      "artifacts": {
        "evidence_state": "fresh",
        "observed_at": "2026-08-24T02:10:39.231795Z",
        "age_seconds": 30236,
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    },
    {
      "id": "undertext",
      "name": "UNDERTEXT differential fusion",
      "description": "Fuses already-published Wayback reconstructions, Weibo-board joins, and DDTI public records into shared China observation rows. Optional Wikipedia-only live surfaces stay gated; live Weibo, Baidu, and Baike are never enabled from this runner.",
      "layer": "content",
      "stage": "observation",
      "collection_mode": "passive",
      "status": "live",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "Internet Archive CDX",
        "Weibo hot-search archive",
        "China Digital Times public RSS"
      ],
      "latest": "readings/undertext-latest.json",
      "history": "readings/undertext-history.jsonl",
      "landing_page": "news/china/erasure/",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_observations"
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      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
      "artifacts": {
        "evidence_state": "fresh",
        "observed_at": "2026-08-24T05:55:38Z",
        "age_seconds": 16738,
        "counts": {
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        "latest_available": true,
        "history_available": true
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    },
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      "id": "erasure-trail",
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      "description": "Deterministic journalist projection of already-published China observations: first-seen, last-seen, snapshots, hashes, source URLs, CSV export and a citation line. Clock is the newest input timestamp. Does not invent a live ledger or a private-message feed.",
      "layer": "content",
      "stage": "synthesis",
      "collection_mode": "derived",
      "status": "live",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "UNDERTEXT fusion",
        "Internet Archive CDX",
        "Weibo hot-search archive",
        "China Digital Times"
      ],
      "latest": "readings/erasure-trail-latest.json",
      "history": "readings/erasure-trail-history.jsonl",
      "landing_page": "news/china/erasure/",
      "method": "docs/FOR-JOURNALISTS.md",
      "count_fields": [
        "n_rows"
      ],
      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
      "artifacts": {
        "evidence_state": "fresh",
        "observed_at": "2026-08-24T05:55:38Z",
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        "history_available": true
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        "history": "https://palimpsest.info/readings/erasure-trail-history.jsonl",
        "landing_page": "https://palimpsest.info/news/china/erasure/",
        "method": "https://palimpsest.info/docs/FOR-JOURNALISTS.md"
      }
    },
    {
      "id": "public-deletion-ledgers",
      "name": "Public deletion ledgers",
      "description": "Ingests public RSS/Atom deletion and blocking ledgers (CDT, GreatFire, FreeWeibo-style). Each feed is a candidate; if every ledger is unreachable the runner abstains rather than publish a zero.",
      "layer": "content",
      "stage": "observation",
      "collection_mode": "passive",
      "status": "warming",
      "cadence": "PT1H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "China Digital Times RSS",
        "GreatFire public RSS",
        "FreeWeibo-style public feed"
      ],
      "latest": "readings/public-deletion-ledgers-latest.json",
      "history": "readings/public-deletion-ledgers-history.jsonl",
      "landing_page": "osint-china.html",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_observations",
        "n_feeds_ok"
      ],
      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
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        "observed_at": "2026-08-23T23:08:00Z",
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        "history": "https://palimpsest.info/readings/public-deletion-ledgers-history.jsonl",
        "landing_page": "https://palimpsest.info/osint-china.html",
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      }
    },
    {
      "id": "archive-news-context",
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      "layer": "content",
      "stage": "synthesis",
      "collection_mode": "derived",
      "status": "warming",
      "cadence": "PT1H",
      "geography": [
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        "GLOBAL"
      ],
      "sources": [
        "Common Crawl derived host features",
        "News-wire-live observations",
        "Official first-seen landings",
        "Public deletion ledgers"
      ],
      "latest": "readings/archive-news-context-latest.json",
      "history": "readings/archive-news-context-history.jsonl",
      "landing_page": "osint-china.html",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_events_contextualized",
        "n_observations_joined"
      ],
      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
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        "observed_at": null,
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        "counts": {},
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        "history_bytes": 0,
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        "latest_available": false,
        "history_available": false
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      "urls": {
        "latest": "https://palimpsest.info/readings/archive-news-context-latest.json",
        "history": "https://palimpsest.info/readings/archive-news-context-history.jsonl",
        "landing_page": "https://palimpsest.info/osint-china.html",
        "method": "https://palimpsest.info/docs/CHINA-CAPTURE.md"
      }
    },
    {
      "id": "greatfire-context",
      "name": "GreatFire attributed verdicts",
      "description": "Caches GreatFire Analyzer 90-day URL verdicts (CC BY 4.0) for hosts Palimpsest already holds. Palimpsest is not the origin of these measurements and does not crawl the 700k catalog.",
      "layer": "network",
      "stage": "corroboration",
      "collection_mode": "passive",
      "status": "warming",
      "cadence": "PT12H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "GreatFire Analyzer open API"
      ],
      "latest": "readings/greatfire-context-latest.json",
      "history": "readings/greatfire-context-history.jsonl",
      "landing_page": "osint-china.html",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_verdicts",
        "n_urls_queried"
      ],
      "license": {
        "name": "GreatFire Analyzer CC BY 4.0; Palimpsest derived metadata MIT",
        "url": "https://creativecommons.org/licenses/by/4.0/"
      },
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        "observed_at": "2026-08-24T06:33:11Z",
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        "history": "https://palimpsest.info/readings/greatfire-context-history.jsonl",
        "landing_page": "https://palimpsest.info/osint-china.html",
        "method": "https://palimpsest.info/docs/CHINA-CAPTURE.md"
      }
    },
    {
      "id": "peer-context",
      "name": "Attributed peer-context warehouse",
      "description": "Joins GreatFire, OONI, bounded CDT excerpts, and a Weiboscope abstention onto already-held Palimpsest hosts. Peer rows never become Palimpsest capture.",
      "layer": "cross-layer",
      "stage": "corroboration",
      "collection_mode": "passive",
      "status": "warming",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "GreatFire Analyzer",
        "OONI",
        "China Digital Times",
        "Weiboscope citation"
      ],
      "latest": "readings/peer-context-latest.json",
      "history": "readings/peer-context-history.jsonl",
      "landing_page": "news/china/situation/",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_hosts",
        "n_greatfire",
        "n_ooni",
        "n_cdt"
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      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
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        "observed_at": "2026-08-24T06:48:00Z",
        "age_seconds": 13596,
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          "n_ooni": 0,
          "n_cdt": 15
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        "history_bytes": 0,
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        "latest_available": true,
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        "history": "https://palimpsest.info/readings/peer-context-history.jsonl",
        "landing_page": "https://palimpsest.info/news/china/situation/",
        "method": "https://palimpsest.info/docs/CHINA-CAPTURE.md"
      }
    },
    {
      "id": "peer-context-rank",
      "name": "Peer-context review ranker",
      "description": "Orders and flags cached GreatFire, OONI, and CDT peer rows against each peer series' own history. Review rank only. It does not write the warehouse, replace event-analysis sentences, or become a join on the Situation desk.",
      "layer": "cross-layer",
      "stage": "synthesis",
      "collection_mode": "derived",
      "status": "warming",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "GreatFire cache",
        "OONI host/ASN series",
        "China Digital Times titles"
      ],
      "latest": "readings/peer-context-rank-latest.json",
      "history": "readings/peer-context-rank-history.jsonl",
      "landing_page": "osint-china.html",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_peer_series",
        "n_peer_series_scored",
        "n_joins"
      ],
      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
      "artifacts": {
        "evidence_state": "warming",
        "observed_at": "2026-08-24T10:34:36Z",
        "age_seconds": 0,
        "counts": {
          "n_peer_series": 43,
          "n_peer_series_scored": 1,
          "n_joins": 0
        },
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        "history_bytes": 669,
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        "latest_available": true,
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        "history": "https://palimpsest.info/readings/peer-context-rank-history.jsonl",
        "landing_page": "https://palimpsest.info/osint-china.html",
        "method": "https://palimpsest.info/docs/CHINA-CAPTURE.md"
      }
    },
    {
      "id": "ooni-peer-context",
      "name": "OONI peer-context host join",
      "description": "Host/ASN feature rows joined from already-held ooni-gfw-latest or warehouse/ooni-bulk. Does not re-download the 33G archive. Silent or miss joins fail closed.",
      "layer": "network",
      "stage": "corroboration",
      "collection_mode": "passive",
      "status": "warming",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "OONI Probe / OONI data"
      ],
      "latest": "readings/ooni-peer-context-latest.json",
      "history": "readings/ooni-peer-context-history.jsonl",
      "landing_page": "news/china/situation/",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_hits"
      ],
      "license": {
        "name": "OONI data license; Palimpsest derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
      "artifacts": {
        "evidence_state": "warming",
        "observed_at": null,
        "age_seconds": null,
        "counts": {},
        "latest_bytes": 0,
        "history_bytes": 0,
        "history_rows": 0,
        "latest_available": false,
        "history_available": false
      },
      "urls": {
        "latest": "https://palimpsest.info/readings/ooni-peer-context-latest.json",
        "history": "https://palimpsest.info/readings/ooni-peer-context-history.jsonl",
        "landing_page": "https://palimpsest.info/news/china/situation/",
        "method": "https://palimpsest.info/docs/CHINA-CAPTURE.md"
      }
    },
    {
      "id": "cdt-context",
      "name": "CDT peer editorial context",
      "description": "Titles, links, bounded excerpts, and gazetteer terms from public CDT RSS. Full articles are not republished. A silent feed fails closed.",
      "layer": "content",
      "stage": "corroboration",
      "collection_mode": "passive",
      "status": "warming",
      "cadence": "PT6H",
      "geography": [
        "CN",
        "GLOBAL"
      ],
      "sources": [
        "China Digital Times RSS"
      ],
      "latest": "readings/cdt-context-latest.json",
      "history": "readings/cdt-context-history.jsonl",
      "landing_page": "news/china/situation/",
      "method": "docs/CHINA-CAPTURE.md",
      "count_fields": [
        "n_items"
      ],
      "license": {
        "name": "Upstream rights retained; derived metadata MIT",
        "url": "https://github.com/beepboop2025/palimpsest/blob/main/LICENSE"
      },
      "artifacts": {
        "evidence_state": "warming",
        "observed_at": null,
        "age_seconds": null,
        "counts": {},
        "latest_bytes": 0,
        "history_bytes": 0,
        "history_rows": 0,
        "latest_available": false,
        "history_available": false
      },
      "urls": {
        "latest": "https://palimpsest.info/readings/cdt-context-latest.json",
        "history": "https://palimpsest.info/readings/cdt-context-history.jsonl",
        "landing_page": "https://palimpsest.info/news/china/situation/",
        "method": "https://palimpsest.info/docs/CHINA-CAPTURE.md"
      }
    },
    {
      "id": "weiboscope-context",
      "name": "Weiboscope documented abstention",
      "description": "Citation pointer only (doi:10.25442/hku.16674565). The 2012 226M-message dump is not downloaded or stored.",
      "layer": "content",
      "stage": "corroboration",
      "collection_mode": "passive",
      "status": "warming",
      "cadence": "PT6H",
      "geography": [
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