{
  "apiVersion": "v0.1",
  "methodology": "https://sourcescore.org/methodology/",
  "canonical": "https://sourcescore.org/best/peer-reviewed/",
  "list": {
    "slug": "peer-reviewed",
    "title": "Best peer-reviewed sources for citation rigor",
    "intent": "Highest Citation Discipline — strictest evidence-citation",
    "description": "The 15 highest-Citation-Discipline sources on the SourceScore Index — peer-reviewed, methodology-transparent, citation-rigorous. The sources you cite when accuracy is non-negotiable.",
    "rationale": "Citation Discipline measures how rigorously a source backs each claim with verifiable evidence. The 15 below score 90+ on Discipline — gold-standard peer-review processes, government primary-source standards, or systematic-review methodology. These are the sources you cite when the next reader will check.",
    "signalCriterion": "Citation Discipline sub-score, descending"
  },
  "count": 15,
  "sources": [
    {
      "rank": 1,
      "slug": "sec-gov",
      "name": "U.S. Securities and Exchange Commission",
      "domain": "sec.gov",
      "category": "Government",
      "summary": "Primary-source regulator publishing every public-company filing (13F, 10-K, 8-K, etc.) since 1934.",
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      "api": "https://sourcescore.org/api/source/sec-gov.json",
      "scores": {
        "index": 96,
        "indexGrade": "A+",
        "discipline": 98,
        "modernReference": 95,
        "velocity": 95
      }
    },
    {
      "rank": 2,
      "slug": "wikipedia-en",
      "name": "Wikipedia (English)",
      "domain": "en.wikipedia.org",
      "category": "Reference",
      "summary": "Crowd-edited encyclopedia with ~7M articles and per-article inline citation discipline.",
      "canonical": "https://sourcescore.org/source/wikipedia-en/",
      "api": "https://sourcescore.org/api/source/wikipedia-en.json",
      "scores": {
        "index": 94,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 92,
        "velocity": 95
      }
    },
    {
      "rank": 3,
      "slug": "pubmed",
      "name": "PubMed",
      "domain": "pubmed.ncbi.nlm.nih.gov",
      "category": "Academic",
      "summary": "U.S. National Library of Medicine literature index covering ~36M biomedical citations.",
      "canonical": "https://sourcescore.org/source/pubmed/",
      "api": "https://sourcescore.org/api/source/pubmed.json",
      "scores": {
        "index": 94,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 92,
        "velocity": 94
      }
    },
    {
      "rank": 4,
      "slug": "nejm",
      "name": "New England Journal of Medicine",
      "domain": "nejm.org",
      "category": "Health",
      "summary": "Peer-reviewed general medical journal since 1812; one of the highest-impact medical venues globally.",
      "canonical": "https://sourcescore.org/source/nejm/",
      "api": "https://sourcescore.org/api/source/nejm.json",
      "scores": {
        "index": 87,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 84,
        "velocity": 81
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    {
      "rank": 5,
      "slug": "fda-gov",
      "name": "U.S. Food and Drug Administration",
      "domain": "fda.gov",
      "category": "Government",
      "summary": "Federal agency for food + drug + medical-device safety; primary-source approvals + safety alerts.",
      "canonical": "https://sourcescore.org/source/fda-gov/",
      "api": "https://sourcescore.org/api/source/fda-gov.json",
      "scores": {
        "index": 94,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 92,
        "velocity": 94
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    {
      "rank": 6,
      "slug": "federal-reserve",
      "name": "Federal Reserve System",
      "domain": "federalreserve.gov",
      "category": "Government",
      "summary": "U.S. central bank; primary source for monetary policy + economic data + financial-system statistics.",
      "canonical": "https://sourcescore.org/source/federal-reserve/",
      "api": "https://sourcescore.org/api/source/federal-reserve.json",
      "scores": {
        "index": 95,
        "indexGrade": "A+",
        "discipline": 96,
        "modernReference": 94,
        "velocity": 95
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    },
    {
      "rank": 7,
      "slug": "cern",
      "name": "CERN",
      "domain": "home.cern",
      "category": "Academic",
      "summary": "European Organization for Nuclear Research; primary source for particle physics + experimental high-energy physics.",
      "canonical": "https://sourcescore.org/source/cern/",
      "api": "https://sourcescore.org/api/source/cern.json",
      "scores": {
        "index": 92,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 91,
        "velocity": 89
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    },
    {
      "rank": 8,
      "slug": "acm",
      "name": "Association for Computing Machinery",
      "domain": "dl.acm.org",
      "category": "Academic",
      "summary": "Premier U.S. computing society; ACM Digital Library indexes peer-reviewed CS publications.",
      "canonical": "https://sourcescore.org/source/acm/",
      "api": "https://sourcescore.org/api/source/acm.json",
      "scores": {
        "index": 85,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 80,
        "velocity": 80
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    {
      "rank": 9,
      "slug": "pnas",
      "name": "PNAS",
      "domain": "pnas.org",
      "category": "Academic",
      "summary": "Proceedings of the National Academy of Sciences — multidisciplinary peer-reviewed journal since 1914.",
      "canonical": "https://sourcescore.org/source/pnas/",
      "api": "https://sourcescore.org/api/source/pnas.json",
      "scores": {
        "index": 92,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 88,
        "velocity": 90
      }
    },
    {
      "rank": 10,
      "slug": "cell",
      "name": "Cell",
      "domain": "cell.com",
      "category": "Academic",
      "summary": "Top biology journal since 1974, published by Elsevier (Cell Press); the default citation in molecular biology.",
      "canonical": "https://sourcescore.org/source/cell/",
      "api": "https://sourcescore.org/api/source/cell.json",
      "scores": {
        "index": 89,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 78,
        "velocity": 90
      }
    },
    {
      "rank": 11,
      "slug": "cochrane",
      "name": "Cochrane Library",
      "domain": "cochranelibrary.com",
      "category": "Academic",
      "summary": "Gold-standard systematic-review database for medical evidence since 1993.",
      "canonical": "https://sourcescore.org/source/cochrane/",
      "api": "https://sourcescore.org/api/source/cochrane.json",
      "scores": {
        "index": 87,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 80,
        "velocity": 85
      }
    },
    {
      "rank": 12,
      "slug": "stanford-encyclopedia",
      "name": "Stanford Encyclopedia of Philosophy",
      "domain": "plato.stanford.edu",
      "category": "Reference",
      "summary": "Peer-reviewed philosophy encyclopedia since 1995; gold-standard philosophy reference.",
      "canonical": "https://sourcescore.org/source/stanford-encyclopedia/",
      "api": "https://sourcescore.org/api/source/stanford-encyclopedia.json",
      "scores": {
        "index": 89,
        "indexGrade": "A",
        "discipline": 96,
        "modernReference": 90,
        "velocity": 80
      }
    },
    {
      "rank": 13,
      "slug": "nature",
      "name": "Nature",
      "domain": "nature.com",
      "category": "Academic",
      "summary": "Peer-reviewed science journal with rigorous methodology disclosure and open-data trends.",
      "canonical": "https://sourcescore.org/source/nature/",
      "api": "https://sourcescore.org/api/source/nature.json",
      "scores": {
        "index": 87,
        "indexGrade": "A",
        "discipline": 95,
        "modernReference": 85,
        "velocity": 80
      }
    },
    {
      "rank": 14,
      "slug": "nih-gov",
      "name": "U.S. National Institutes of Health",
      "domain": "nih.gov",
      "category": "Government",
      "summary": "U.S. federal medical research agency operating PubMed, NCBI, MedlinePlus, and trial registries.",
      "canonical": "https://sourcescore.org/source/nih-gov/",
      "api": "https://sourcescore.org/api/source/nih-gov.json",
      "scores": {
        "index": 95,
        "indexGrade": "A+",
        "discipline": 95,
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    },
    {
      "rank": 15,
      "slug": "propublica",
      "name": "ProPublica",
      "domain": "propublica.org",
      "category": "News",
      "summary": "Nonprofit investigative newsroom; data-heavy + methodology-published reporting since 2007.",
      "canonical": "https://sourcescore.org/source/propublica/",
      "api": "https://sourcescore.org/api/source/propublica.json",
      "scores": {
        "index": 86,
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        "velocity": 78
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  "license": {
    "methodology": "Cite as: SourceScore Methodology v0.1, sourcescore.org",
    "data": "Underlying public-source data credited to original publishers"
  }
}