{
  "version": "v0-step2031-viaf-gnd",
  "step": 2031,
  "fetched_at": "2026-09-13T20:57:30.579Z",
  "total_qids": 50,
  "viaf": {
    "found": 50,
    "missing": 0,
    "coverage_pct": 100
  },
  "gnd": {
    "found": 49,
    "missing": 1,
    "coverage_pct": 98
  },
  "api_source": "https://www.wikidata.org/w/api.php?action=wbgetentities&props=claims (P214 VIAF + P227 GND)",
  "url_patterns": {
    "viaf": "https://viaf.org/viaf/{P214}/",
    "gnd": "https://d-nb.info/gnd/{P227}"
  },
  "discipline_note": "VIAF (Virtual International Authority File, OCLC) + GND (Integrated Authority File, Deutsche Nationalbibliothek) = library authority secondary references. Adding URLs as external_ids anchors only; provenance.level 変更 なし per schema §4 (secondary needs ISBN, web resource は 別 category). STEP 2029 MacTutor same pattern の 拡張。",
  "entries": {
    "person:thales-of-miletus": {
      "person_id": "person:thales-of-miletus",
      "qid": "Q36303",
      "name": "Thales of Miletus",
      "bin": "A",
      "bin_index": 1,
      "viaf": "290923996",
      "gnd": "118801732",
      "viaf_url": "https://viaf.org/viaf/290923996/",
      "gnd_url": "https://d-nb.info/gnd/118801732"
    },
    "person:pythagoras": {
      "person_id": "person:pythagoras",
      "qid": "Q10261",
      "name": "Pythagoras",
      "bin": "A",
      "bin_index": 2,
      "viaf": "162237897",
      "gnd": "118597248",
      "viaf_url": "https://viaf.org/viaf/162237897/",
      "gnd_url": "https://d-nb.info/gnd/118597248"
    },
    "person:euclid": {
      "person_id": "person:euclid",
      "qid": "Q8747",
      "name": "Euclid",
      "bin": "A",
      "bin_index": 3,
      "viaf": "176184097",
      "gnd": "118638955",
      "viaf_url": "https://viaf.org/viaf/176184097/",
      "gnd_url": "https://d-nb.info/gnd/118638955"
    },
    "person:archimedes": {
      "person_id": "person:archimedes",
      "qid": "Q8739",
      "name": "Archimedes",
      "bin": "A",
      "bin_index": 4,
      "viaf": "29547910",
      "gnd": "118503863",
      "viaf_url": "https://viaf.org/viaf/29547910/",
      "gnd_url": "https://d-nb.info/gnd/118503863"
    },
    "person:apollonius-of-perga": {
      "person_id": "person:apollonius-of-perga",
      "qid": "Q180109",
      "name": "Apollonius of Perga",
      "bin": "A",
      "bin_index": 5,
      "viaf": "19162",
      "gnd": "11864548X",
      "viaf_url": "https://viaf.org/viaf/19162/",
      "gnd_url": "https://d-nb.info/gnd/11864548X"
    },
    "person:eratosthenes": {
      "person_id": "person:eratosthenes",
      "qid": "Q43182",
      "name": "Eratosthenes",
      "bin": "A",
      "bin_index": 6,
      "viaf": "69031816",
      "gnd": "118530674",
      "viaf_url": "https://viaf.org/viaf/69031816/",
      "gnd_url": "https://d-nb.info/gnd/118530674"
    },
    "person:hipparchus": {
      "person_id": "person:hipparchus",
      "qid": "Q159905",
      "name": "Hipparchus",
      "bin": "A",
      "bin_index": 7,
      "viaf": "17570519",
      "gnd": "100499651",
      "viaf_url": "https://viaf.org/viaf/17570519/",
      "gnd_url": "https://d-nb.info/gnd/100499651"
    },
    "person:diophantus-of-alexandria": {
      "person_id": "person:diophantus-of-alexandria",
      "qid": "Q178217",
      "name": "Diophantus of Alexandria",
      "bin": "A",
      "bin_index": 8,
      "viaf": "2604182",
      "gnd": "118525913",
      "viaf_url": "https://viaf.org/viaf/2604182/",
      "gnd_url": "https://d-nb.info/gnd/118525913"
    },
    "person:hypatia-of-alexandria": {
      "person_id": "person:hypatia-of-alexandria",
      "qid": "Q11903",
      "name": "Hypatia of Alexandria",
      "bin": "A",
      "bin_index": 9,
      "viaf": "316731617",
      "gnd": "119121409",
      "viaf_url": "https://viaf.org/viaf/316731617/",
      "gnd_url": "https://d-nb.info/gnd/119121409"
    },
    "person:leonardo-fibonacci": {
      "person_id": "person:leonardo-fibonacci",
      "qid": "Q8763",
      "name": "Leonardo Fibonacci",
      "bin": "A",
      "bin_index": 10,
      "viaf": "108619361",
      "gnd": "11868700X",
      "viaf_url": "https://viaf.org/viaf/108619361/",
      "gnd_url": "https://d-nb.info/gnd/11868700X"
    },
    "person:gerolamo-cardano": {
      "person_id": "person:gerolamo-cardano",
      "qid": "Q184530",
      "name": "Gerolamo Cardano",
      "bin": "A",
      "bin_index": 11,
      "viaf": "27062058",
      "gnd": "11863822X",
      "viaf_url": "https://viaf.org/viaf/27062058/",
      "gnd_url": "https://d-nb.info/gnd/11863822X"
    },
    "person:john-napier": {
      "person_id": "person:john-napier",
      "qid": "Q159592",
      "name": "John Napier",
      "bin": "A",
      "bin_index": 12,
      "viaf": "69004697",
      "gnd": "120942151",
      "viaf_url": "https://viaf.org/viaf/69004697/",
      "gnd_url": "https://d-nb.info/gnd/120942151"
    },
    "person:rene-descartes": {
      "person_id": "person:rene-descartes",
      "qid": "Q9191",
      "name": "René Descartes",
      "bin": "A",
      "bin_index": 13,
      "viaf": "41838958",
      "gnd": "118524844",
      "viaf_url": "https://viaf.org/viaf/41838958/",
      "gnd_url": "https://d-nb.info/gnd/118524844"
    },
    "person:pierre-de-fermat": {
      "person_id": "person:pierre-de-fermat",
      "qid": "Q75655",
      "name": "Pierre de Fermat",
      "bin": "A",
      "bin_index": 14,
      "viaf": "14769633",
      "gnd": "118532561",
      "viaf_url": "https://viaf.org/viaf/14769633/",
      "gnd_url": "https://d-nb.info/gnd/118532561"
    },
    "person:isaac-newton": {
      "person_id": "person:isaac-newton",
      "qid": "Q935",
      "name": "Isaac Newton",
      "bin": "A",
      "bin_index": 15,
      "viaf": "22146457",
      "gnd": "118587544",
      "viaf_url": "https://viaf.org/viaf/22146457/",
      "gnd_url": "https://d-nb.info/gnd/118587544"
    },
    "person:gottfried-wilhelm-leibniz": {
      "person_id": "person:gottfried-wilhelm-leibniz",
      "qid": "Q9047",
      "name": "Gottfried Wilhelm Leibniz",
      "bin": "A",
      "bin_index": 16,
      "viaf": "9849392",
      "gnd": "118571249",
      "viaf_url": "https://viaf.org/viaf/9849392/",
      "gnd_url": "https://d-nb.info/gnd/118571249"
    },
    "person:leonhard-euler": {
      "person_id": "person:leonhard-euler",
      "qid": "Q7604",
      "name": "Leonhard Euler",
      "bin": "A",
      "bin_index": 17,
      "viaf": "24639786",
      "gnd": "118531379",
      "viaf_url": "https://viaf.org/viaf/24639786/",
      "gnd_url": "https://d-nb.info/gnd/118531379"
    },
    "person:joseph-louis-lagrange": {
      "person_id": "person:joseph-louis-lagrange",
      "qid": "Q80222",
      "name": "Joseph-Louis Lagrange",
      "bin": "A",
      "bin_index": 18,
      "viaf": "44051",
      "gnd": "118568698",
      "viaf_url": "https://viaf.org/viaf/44051/",
      "gnd_url": "https://d-nb.info/gnd/118568698"
    },
    "person:carl-friedrich-gauss": {
      "person_id": "person:carl-friedrich-gauss",
      "qid": "Q6722",
      "name": "Carl Friedrich Gauss",
      "bin": "A",
      "bin_index": 19,
      "viaf": "29534259",
      "gnd": "104234644",
      "viaf_url": "https://viaf.org/viaf/29534259/",
      "gnd_url": "https://d-nb.info/gnd/104234644"
    },
    "person:augustin-louis-cauchy": {
      "person_id": "person:augustin-louis-cauchy",
      "qid": "Q8814",
      "name": "Augustin-Louis Cauchy",
      "bin": "A",
      "bin_index": 20,
      "viaf": "73851086",
      "gnd": "118519735",
      "viaf_url": "https://viaf.org/viaf/73851086/",
      "gnd_url": "https://d-nb.info/gnd/118519735"
    },
    "person:lars-ahlfors": {
      "person_id": "person:lars-ahlfors",
      "qid": "Q211642",
      "name": "Lars Ahlfors",
      "bin": "B",
      "bin_index": 1,
      "viaf": "68994166",
      "gnd": "104541164",
      "viaf_url": "https://viaf.org/viaf/68994166/",
      "gnd_url": "https://d-nb.info/gnd/104541164"
    },
    "person:jesse-douglas": {
      "person_id": "person:jesse-douglas",
      "qid": "Q315404",
      "name": "Jesse Douglas",
      "bin": "B",
      "bin_index": 2,
      "viaf": "22014232",
      "gnd": "1199442232",
      "viaf_url": "https://viaf.org/viaf/22014232/",
      "gnd_url": "https://d-nb.info/gnd/1199442232"
    },
    "person:atle-selberg": {
      "person_id": "person:atle-selberg",
      "qid": "Q211041",
      "name": "Atle Selberg",
      "bin": "B",
      "bin_index": 3,
      "viaf": "24667118",
      "gnd": "117725161",
      "viaf_url": "https://viaf.org/viaf/24667118/",
      "gnd_url": "https://d-nb.info/gnd/117725161"
    },
    "person:laurent-schwartz": {
      "person_id": "person:laurent-schwartz",
      "qid": "Q212081",
      "name": "Laurent Schwartz",
      "bin": "B",
      "bin_index": 4,
      "viaf": "100240489",
      "gnd": "118795694",
      "viaf_url": "https://viaf.org/viaf/100240489/",
      "gnd_url": "https://d-nb.info/gnd/118795694"
    },
    "person:kunihiko-kodaira": {
      "person_id": "person:kunihiko-kodaira",
      "qid": "Q333918",
      "name": "Kunihiko Kodaira",
      "bin": "B",
      "bin_index": 5,
      "viaf": "108188925",
      "gnd": "118777645",
      "viaf_url": "https://viaf.org/viaf/108188925/",
      "gnd_url": "https://d-nb.info/gnd/118777645"
    },
    "person:jean-pierre-serre": {
      "person_id": "person:jean-pierre-serre",
      "qid": "Q212063",
      "name": "Jean-Pierre Serre",
      "bin": "B",
      "bin_index": 6,
      "viaf": "66473477",
      "gnd": "142283126",
      "viaf_url": "https://viaf.org/viaf/66473477/",
      "gnd_url": "https://d-nb.info/gnd/142283126"
    },
    "person:rene-thom": {
      "person_id": "person:rene-thom",
      "qid": "Q164428",
      "name": "René Thom",
      "bin": "B",
      "bin_index": 7,
      "viaf": "108125774",
      "gnd": "119357097",
      "viaf_url": "https://viaf.org/viaf/108125774/",
      "gnd_url": "https://d-nb.info/gnd/119357097"
    },
    "person:john-milnor": {
      "person_id": "person:john-milnor",
      "qid": "Q215765",
      "name": "John Milnor",
      "bin": "B",
      "bin_index": 8,
      "viaf": "108821187",
      "gnd": "119533073",
      "viaf_url": "https://viaf.org/viaf/108821187/",
      "gnd_url": "https://d-nb.info/gnd/119533073"
    },
    "person:stephen-smale": {
      "person_id": "person:stephen-smale",
      "qid": "Q315394",
      "name": "Stephen Smale",
      "bin": "B",
      "bin_index": 9,
      "viaf": "71452582",
      "gnd": "119122472",
      "viaf_url": "https://viaf.org/viaf/71452582/",
      "gnd_url": "https://d-nb.info/gnd/119122472"
    },
    "person:heisuke-hironaka": {
      "person_id": "person:heisuke-hironaka",
      "qid": "Q183373",
      "name": "Heisuke Hironaka",
      "bin": "B",
      "bin_index": 10,
      "viaf": "108168030",
      "gnd": "1074027868",
      "viaf_url": "https://viaf.org/viaf/108168030/",
      "gnd_url": "https://d-nb.info/gnd/1074027868"
    },
    "person:pierre-deligne": {
      "person_id": "person:pierre-deligne",
      "qid": "Q334045",
      "name": "Pierre Deligne",
      "bin": "B",
      "bin_index": 11,
      "viaf": "85222245",
      "gnd": "10785533X",
      "viaf_url": "https://viaf.org/viaf/85222245/",
      "gnd_url": "https://d-nb.info/gnd/10785533X"
    },
    "person:gerd-faltings": {
      "person_id": "person:gerd-faltings",
      "qid": "Q77137",
      "name": "Gerd Faltings",
      "bin": "B",
      "bin_index": 12,
      "viaf": "19749766",
      "gnd": "118686003",
      "viaf_url": "https://viaf.org/viaf/19749766/",
      "gnd_url": "https://d-nb.info/gnd/118686003"
    },
    "person:shigefumi-mori": {
      "person_id": "person:shigefumi-mori",
      "qid": "Q206215",
      "name": "Shigefumi Mori",
      "bin": "B",
      "bin_index": 13,
      "viaf": "111010114",
      "gnd": "142401137",
      "viaf_url": "https://viaf.org/viaf/111010114/",
      "gnd_url": "https://d-nb.info/gnd/142401137"
    },
    "person:maxim-kontsevich": {
      "person_id": "person:maxim-kontsevich",
      "qid": "Q369588",
      "name": "Maxim Kontsevich",
      "bin": "B",
      "bin_index": 14,
      "viaf": "61793160",
      "gnd": "1026762456",
      "viaf_url": "https://viaf.org/viaf/61793160/",
      "gnd_url": "https://d-nb.info/gnd/1026762456"
    },
    "person:grigori-perelman": {
      "person_id": "person:grigori-perelman",
      "qid": "Q117346",
      "name": "Grigori Perelman",
      "bin": "B",
      "bin_index": 15,
      "viaf": "68746706",
      "gnd": "136216218",
      "viaf_url": "https://viaf.org/viaf/68746706/",
      "gnd_url": "https://d-nb.info/gnd/136216218"
    },
    "person:terence-tao": {
      "person_id": "person:terence-tao",
      "qid": "Q295981",
      "name": "Terence Tao",
      "bin": "B",
      "bin_index": 16,
      "viaf": "8540290",
      "gnd": "132190370",
      "viaf_url": "https://viaf.org/viaf/8540290/",
      "gnd_url": "https://d-nb.info/gnd/132190370"
    },
    "person:cedric-villani": {
      "person_id": "person:cedric-villani",
      "qid": "Q334065",
      "name": "Cédric Villani",
      "bin": "B",
      "bin_index": 17,
      "viaf": "47041699",
      "gnd": "13389701X",
      "viaf_url": "https://viaf.org/viaf/47041699/",
      "gnd_url": "https://d-nb.info/gnd/13389701X"
    },
    "person:manjul-bhargava": {
      "person_id": "person:manjul-bhargava",
      "qid": "Q1398727",
      "name": "Manjul Bhargava",
      "bin": "B",
      "bin_index": 18,
      "viaf": "68584341",
      "gnd": "114092379X",
      "viaf_url": "https://viaf.org/viaf/68584341/",
      "gnd_url": "https://d-nb.info/gnd/114092379X"
    },
    "person:maryam-mirzakhani": {
      "person_id": "person:maryam-mirzakhani",
      "qid": "Q1771279",
      "name": "Maryam Mirzakhani",
      "bin": "B",
      "bin_index": 19,
      "viaf": "172545411",
      "gnd": "1120321417",
      "viaf_url": "https://viaf.org/viaf/172545411/",
      "gnd_url": "https://d-nb.info/gnd/1120321417"
    },
    "person:maryna-viazovska": {
      "person_id": "person:maryna-viazovska",
      "qid": "Q23721911",
      "name": "Maryna Viazovska",
      "bin": "B",
      "bin_index": 20,
      "viaf": "306266369",
      "gnd": "1046435000",
      "viaf_url": "https://viaf.org/viaf/306266369/",
      "gnd_url": "https://d-nb.info/gnd/1046435000"
    },
    "person:aryabhata-i": {
      "person_id": "person:aryabhata-i",
      "qid": "Q11359",
      "name": "Aryabhata I",
      "bin": "C",
      "bin_index": 1,
      "viaf": "37213504",
      "gnd": "118504584",
      "viaf_url": "https://viaf.org/viaf/37213504/",
      "gnd_url": "https://d-nb.info/gnd/118504584"
    },
    "person:brahmagupta": {
      "person_id": "person:brahmagupta",
      "qid": "Q202943",
      "name": "Brahmagupta",
      "bin": "C",
      "bin_index": 2,
      "viaf": "39509380",
      "gnd": "120322420",
      "viaf_url": "https://viaf.org/viaf/39509380/",
      "gnd_url": "https://d-nb.info/gnd/120322420"
    },
    "person:al-khwarizmi": {
      "person_id": "person:al-khwarizmi",
      "qid": "Q9038",
      "name": "Al-Khwarizmi",
      "bin": "C",
      "bin_index": 3,
      "viaf": "365144782982270357614",
      "gnd": "118676180",
      "viaf_url": "https://viaf.org/viaf/365144782982270357614/",
      "gnd_url": "https://d-nb.info/gnd/118676180"
    },
    "person:omar-khayyam": {
      "person_id": "person:omar-khayyam",
      "qid": "Q35900",
      "name": "Omar Khayyam",
      "bin": "C",
      "bin_index": 4,
      "viaf": "100210377",
      "gnd": "118736302",
      "viaf_url": "https://viaf.org/viaf/100210377/",
      "gnd_url": "https://d-nb.info/gnd/118736302"
    },
    "person:bhaskara-ii": {
      "person_id": "person:bhaskara-ii",
      "qid": "Q213385",
      "name": "Bhaskara II",
      "bin": "C",
      "bin_index": 5,
      "viaf": "29927659",
      "gnd": "118510584",
      "viaf_url": "https://viaf.org/viaf/29927659/",
      "gnd_url": "https://d-nb.info/gnd/118510584"
    },
    "person:madhava-of-sangamagrama": {
      "person_id": "person:madhava-of-sangamagrama",
      "qid": "Q115590",
      "name": "Madhava of Sangamagrama",
      "bin": "C",
      "bin_index": 6,
      "viaf": "264627658",
      "gnd": "1027039928",
      "viaf_url": "https://viaf.org/viaf/264627658/",
      "gnd_url": "https://d-nb.info/gnd/1027039928"
    },
    "person:al-kashi": {
      "person_id": "person:al-kashi",
      "qid": "Q115466",
      "name": "Al-Kashi",
      "bin": "C",
      "bin_index": 7,
      "viaf": "169807882",
      "gnd": "118975498",
      "viaf_url": "https://viaf.org/viaf/169807882/",
      "gnd_url": "https://d-nb.info/gnd/118975498"
    },
    "person:qin-jiushao": {
      "person_id": "person:qin-jiushao",
      "qid": "Q565225",
      "name": "Qin Jiushao",
      "bin": "C",
      "bin_index": 8,
      "viaf": "31891968",
      "gnd": null,
      "viaf_url": "https://viaf.org/viaf/31891968/",
      "gnd_url": null
    },
    "person:zhu-shijie": {
      "person_id": "person:zhu-shijie",
      "qid": "Q198126",
      "name": "Zhu Shijie",
      "bin": "C",
      "bin_index": 9,
      "viaf": "76215499",
      "gnd": "1258841673",
      "viaf_url": "https://viaf.org/viaf/76215499/",
      "gnd_url": "https://d-nb.info/gnd/1258841673"
    },
    "person:seki-takakazu": {
      "person_id": "person:seki-takakazu",
      "qid": "Q470531",
      "name": "Seki Takakazu",
      "bin": "C",
      "bin_index": 10,
      "viaf": "67272255",
      "gnd": "119274426",
      "viaf_url": "https://viaf.org/viaf/67272255/",
      "gnd_url": "https://d-nb.info/gnd/119274426"
    }
  }
}