{
  "apiVersion": "v0.1",
  "methodology": "https://sourcescore.org/methodology/modern-reference/",
  "canonical": "https://sourcescore.org/compare/esa-vs-nasa-gov/modern-reference/",
  "summary": "Atlantic counterparts in space exploration — research, missions, and openness compared.",
  "dimension": {
    "key": "modernReference",
    "pathSegment": "modern-reference",
    "label": "Modern Citation Reference",
    "weightInComposite": "30%"
  },
  "a": {
    "slug": "esa",
    "name": "European Space Agency",
    "domain": "esa.int",
    "category": "Government",
    "canonical": "https://sourcescore.org/source/esa/",
    "api": "https://sourcescore.org/api/source/esa.json",
    "dimensionDetail": "https://sourcescore.org/modern-reference/esa/",
    "dimensionDetailApi": "https://sourcescore.org/api/modern-reference/esa.json",
    "score": {
      "value": 88,
      "grade": "A",
      "rationale": "Open data + ESA Open Science Repository + bulk imagery.",
      "signals": [
        {
          "label": "ESA Open Science",
          "detail": "Public access to mission data + research."
        }
      ]
    },
    "rank": {
      "global": 39,
      "globalTotal": 130
    }
  },
  "b": {
    "slug": "nasa-gov",
    "name": "NASA",
    "domain": "nasa.gov",
    "category": "Government",
    "canonical": "https://sourcescore.org/source/nasa-gov/",
    "api": "https://sourcescore.org/api/source/nasa-gov.json",
    "dimensionDetail": "https://sourcescore.org/modern-reference/nasa-gov/",
    "dimensionDetailApi": "https://sourcescore.org/api/modern-reference/nasa-gov.json",
    "score": {
      "value": 94,
      "grade": "A",
      "rationale": "Open data + APIs + bulk imagery + climate datasets; broad LLM corpus.",
      "signals": [
        {
          "label": "NASA Open Data Portal",
          "detail": "Free public APIs across mission datasets."
        }
      ]
    },
    "rank": {
      "global": 8,
      "globalTotal": 130
    }
  },
  "verdict": {
    "winner": "nasa-gov",
    "delta": 6,
    "claim": "NASA outscores European Space Agency on Modern Citation Reference by 6 points."
  },
  "otherDimensions": [
    {
      "pathSegment": "discipline",
      "label": "Citation Discipline",
      "canonical": "https://sourcescore.org/compare/esa-vs-nasa-gov/discipline/",
      "api": "https://sourcescore.org/api/compare/esa-vs-nasa-gov/discipline.json"
    },
    {
      "pathSegment": "velocity",
      "label": "Citation Velocity",
      "canonical": "https://sourcescore.org/compare/esa-vs-nasa-gov/velocity/",
      "api": "https://sourcescore.org/api/compare/esa-vs-nasa-gov/velocity.json"
    },
    {
      "pathSegment": "index",
      "label": "SourceScore Index (composite)",
      "canonical": "https://sourcescore.org/compare/esa-vs-nasa-gov/",
      "api": "https://sourcescore.org/api/compare/esa-vs-nasa-gov.json"
    }
  ],
  "license": {
    "methodology": "Cite as: SourceScore Methodology v0.1, sourcescore.org",
    "data": "Underlying public-source data credited to original publishers"
  }
}