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  "Type": "Package",
  "Title": "Reproducible, Provenance-First Evidence Tooling",
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  "Authors@R": "person(\"Heidi Helena\", \"Andersén\", role = c(\"aut\", \"cre\"),\nemail = \"andersenheidihelena@gmail.com\",\ncomment = c(ORCID = \"0000-0001-5923-5865\"))",
  "Description": "Freeze a record set into a content-hashed,\nprovenance-stamped, date-locked corpus; verify reproducibility;\nand keep a hash-chained, tamper-evident audit trail. The\ncanonical on-disk format and the content hash are\nbyte-identical with the Python package 'vahtian', so frozen\ncorpora and audit ledgers interoperate across the two\nlanguages.",
  "License": "Apache License (>= 2)",
  "Encoding": "UTF-8",
  "Config/testthat/edition": "3",
  "URL": "https://vahtian.com, https://github.com/heidihelena/vahtian",
  "BugReports": "https://github.com/heidihelena/vahtian/issues",
  "RoxygenNote": "7.3.1",
  "Repository": "https://heidihelena.r-universe.dev",
  "Date/Publication": "2026-08-05 10:26:05 UTC",
  "RemoteUrl": "https://github.com/heidihelena/vahtian",
  "RemoteRef": "HEAD",
  "RemoteSha": "c917626cd94fba5530d97afa6523c069051d5bf1",
  "RemoteSubdir": "packages/vahtian-r",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-11-03 10:41:26 UTC",
    "User": "root"
  },
  "Author": "Heidi Helena Andersén [aut, cre] (ORCID:\n<https://orcid.org/0000-0001-5923-5865>)",
  "Maintainer": "Heidi Helena Andersén <andersenheidihelena@gmail.com>",
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  "_created": "2026-11-03T10:41:26.000Z",
  "_published": "2026-11-03T11:46:43.129Z",
  "_upstream": "https://github.com/heidihelena/vahtian",
  "_status": "success",
  "_maintainer": {
    "name": "Heidi Helena Andersén",
    "email": "andersenheidihelena@gmail.com",
    "orcid": "0000-0001-5923-5865"
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    "author": "Heidi Andersen <155103098+heidihelena@users.noreply.github.com>",
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    "message": "volcano: rebuild on Svartsengi, with the threshold drawn as a band (#354)\n\nHeidi's diagnosis: the volcano was the weakest of the four, for want of a\nreal model. The meteorite took its authority from Söderfjärden's published\ngeometry; the volcano ran on strain units I invented.\n\nIt now follows the Svartsengi reservoir and the Sundhnúkur crater row,\nwhich has cycled repeatedly since December 2023. Accumulated magma volume\nis the observable state, uplift and seismicity climb with it, a dyke\ntravels to the crater row, and the reservoir drains.\n\nThe threshold is a band, not a line, because that is what the geodetic\nmodels give: roughly 8-13 million cubic metres for the early events,\nrevised upward to roughly 12-15 later, with the inflow rate itself\ndeclining. The piece erupts at a volume drawn from inside the band, moves\nthe band between cycles, and reports where in its band each eruption fell.\nChecked headless over three cycles: erupted at 10.4 against a band of 8-13,\n48% across, band then moved to 9-14.\n\nSo the precursor works and the gate stays uncertain at the same time, which\nis what a piece erupting on a crisp line would get wrong.\n\nAlso carried: the canonical fix that landed just after #353 merged, so the\npiece pages name the URL Cloudflare actually serves rather than the .html\nform that redirects to it.\n\nCo-authored-by: Claude Opus 5 <noreply@anthropic.com>",
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      "date": "2026-06-27"
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      "date": "2026-07-13"
    },
    {
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      "date": "2026-07-30"
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    "evidence-synthesis",
    "local-first",
    "research",
    "research-integrity",
    "research-methods",
    "systematic-review",
    "zotero"
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    "type": "user",
    "name": "Heidi Andersen",
    "followers": 52,
    "description": "Founder, Vahtian | Thoracic oncologist, pulmonologist, and clinical data analyst | MD, PhD"
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/vahtian"
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    "extra/citation.json",
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    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "extra/vahtian.html"
  ],
  "_cranurl": false,
  "_exports": [
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    "assertion",
    "assessment_record",
    "extraction_failed",
    "inferred",
    "ledger",
    "ledger_append",
    "ledger_verify",
    "not_applicable",
    "vahtian_compare",
    "vahtian_content_hash",
    "vahtian_freeze",
    "vahtian_verify"
  ],
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