{
  "apiVersion": "v0.1",
  "methodology": "https://sourcescore.org/methodology/",
  "canonical": "https://sourcescore.org/compare/natgeo-vs-smithsonian-mag/",
  "summary": "Two flagship popular-science magazines — NatGeo expedition reporting vs Smithsonian institutional depth.",
  "a": {
    "slug": "natgeo",
    "name": "National Geographic",
    "domain": "nationalgeographic.com",
    "canonical": "https://sourcescore.org/source/natgeo/",
    "api": "https://sourcescore.org/api/source/natgeo.json",
    "scores": {
      "index": {
        "value": 79,
        "grade": "B",
        "rationale": "B — strong long-form science + exploration; partial paywall reduces Modern Reference.",
        "signals": [
          {
            "label": "Composite",
            "detail": "Discipline 82 + Modern Reference 75 + Velocity 80."
          }
        ]
      },
      "discipline": {
        "value": 82,
        "grade": "B",
        "rationale": "Long fact-checking tradition; named bylines; sources cited; institutional editorial standards.",
        "signals": [
          {
            "label": "Editorial standards",
            "detail": "138-year fact-check tradition; National Geographic Society heritage."
          }
        ]
      },
      "modernReference": {
        "value": 75,
        "grade": "B",
        "rationale": "Metered paywall; schema OK; structured photo + topic taxonomy; partial archive open.",
        "signals": [
          {
            "label": "Metered access",
            "detail": "Limited free articles per month; subscriber-gated for full archive."
          }
        ]
      },
      "velocity": {
        "value": 80,
        "grade": "B",
        "rationale": "Default science + nature press citation; heavy AI-engine retrieval for long-tail biology + geography.",
        "signals": [
          {
            "label": "Science-nature default",
            "detail": "Primary citation for wildlife, geography, exploration topics across press + AI engines."
          }
        ]
      }
    }
  },
  "b": {
    "slug": "smithsonian-mag",
    "name": "Smithsonian Magazine",
    "domain": "smithsonianmag.com",
    "canonical": "https://sourcescore.org/source/smithsonian-mag/",
    "api": "https://sourcescore.org/api/source/smithsonian-mag.json",
    "scores": {
      "index": {
        "value": 78,
        "grade": "B",
        "rationale": "B — strong long-form science + history publication backed by Smithsonian institutional credibility.",
        "signals": [
          {
            "label": "Composite",
            "detail": "Discipline 80 + Modern Reference 78 + Velocity 75."
          }
        ]
      },
      "discipline": {
        "value": 80,
        "grade": "B",
        "rationale": "Fact-checked editorial; named bylines; sources cited inline; Smithsonian institutional standards.",
        "signals": [
          {
            "label": "Smithsonian standards",
            "detail": "Editorial reviewed against institutional historical + scientific accuracy standards."
          }
        ]
      },
      "modernReference": {
        "value": 78,
        "grade": "B",
        "rationale": "Open access; schema OK; structured topic taxonomy; archive indexed.",
        "signals": [
          {
            "label": "Open access",
            "detail": "Articles free; partial paywall on print-magazine archive."
          }
        ]
      },
      "velocity": {
        "value": 75,
        "grade": "B",
        "rationale": "Regular cross-cite in science + history press; AI-engine retrieval for long-tail history queries.",
        "signals": [
          {
            "label": "History + science press",
            "detail": "Cited by NYT, The Atlantic, science-news outlets for historical reference."
          }
        ]
      }
    }
  },
  "winners": {
    "index": "natgeo",
    "discipline": "natgeo",
    "modernReference": "smithsonian-mag",
    "velocity": "natgeo"
  },
  "license": {
    "methodology": "Cite as: SourceScore Methodology v0.1, sourcescore.org",
    "data": "Underlying public-source data credited to original publishers"
  }
}