{"schema_version":"4ort.packet/1","entity":{"entity_id":"pell-s-equation","kg_uuid":"aaadd9b4-24f4-48c5-972a-25efc5c0210a","wikidata_id":"Q853067","name":"Pell's equation","description":"mathematical equation, specifically a kind of Diophantine equation","type":"Thing","url":"https://4ort.xyz/entity/pell-s-equation"},"status":"complete","as_of":{"copy_written_at":"2026-10-30T18:17:59Z","last_source_edit_seen":"2026-05-26T10:11:24Z","stale_possible":false,"claims_refreshed_at":"2026-11-02T22:50:48Z","source_revision":2564083675},"facts":[{"field":"P31","label":"instance of","value":"Diophantine equation","value_id":"Q905896","value_raw":"Q905896","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P31","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P571","label":"inception","value":"1657","value_id":null,"value_raw":"+1657-00-00T00:00:00Z","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P571","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"retrieved":"2019-03-01","imported_from":"English Wikipedia"}]},"trust":{"band":"medium","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P138","label":"named after","value":"John Pell","value_id":"Q471794","value_raw":"Q471794","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P138","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P508","label":"BNCF Thesaurus ID","value":"20871","value_id":null,"value_raw":"20871","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P508","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"stated_in":"Nuovo soggettario","stated_in_id":"Q16583225"}]},"trust":{"band":"high","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P2534","label":"defining formula","value":"x^2-ny^2=1","value_id":null,"value_raw":"x^2-ny^2=1","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P2534","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"imported_from":"English Wikipedia"}]},"trust":{"band":"medium","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P2812","label":"MathWorld ID","value":"PellEquation","value_id":null,"value_raw":"PellEquation","rank":"normal","current":null,"qualifiers":[{"field":"P1810","label":"subject named as","value":"Pell Equation"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P2812","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{"imported_from":"English Wikipedia"}]},"trust":{"band":"medium","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P2924","label":"Great Russian Encyclopedia Online ID (2017)","value":"2709723","value_id":null,"value_raw":"2709723","rank":"normal","current":null,"qualifiers":[{"field":"P1810","label":"subject named as","value":"ПЕЛЛЯ УРАВНЕНИЕ"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P2924","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6104","label":"maintained by WikiProject","value":"WikiProject Mathematics","value_id":"Q8487137","value_raw":"Q8487137","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P6104","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6366","label":"Microsoft Academic ID (discontinued)","value":"114403751","value_id":null,"value_raw":"114403751","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P6366","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6564","label":"Brilliant Wiki ID","value":"quadratic-diophantine-equations-pells-equation","value_id":null,"value_raw":"quadratic-diophantine-equations-pells-equation","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P6564","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6781","label":"ProofWiki ID","value":"Pell's_Equation","value_id":null,"value_raw":"Pell's_Equation","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P6781","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P11514","label":"Great Russian Encyclopedia portal ID","value":"uravnenie-pellia-ef05ad","value_id":null,"value_raw":"uravnenie-pellia-ef05ad","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P11514","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P13591","label":"Yale LUX ID","value":"concept/c5f56c32-3f06-4682-adee-5b87db3a16a1","value_id":null,"value_raw":"concept/c5f56c32-3f06-4682-adee-5b87db3a16a1","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q853067#P13591","source_edition":"2026-11-02T22:50:48Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}}],"unknowns":[],"omitted":{"facts":0,"reason":null},"licences":[{"source":"wikidata","source_name":"Wikidata","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"fields":["P31","P571","P138","P508","P2534","P2812","P2924","P6104","P6366","P6564","P6781","P11514","P13591"]}],"routes":{"entity_page":"https://4ort.xyz/entity/pell-s-equation","packet_api":"https://4ort.xyz/api/v1/entities/pell-s-equation/packet","facts_jsonld":"https://4ort.xyz/entity/pell-s-equation/facts.json","changes_api":"https://4ort.xyz/api/v1/knowledge/get_entity_changes?entity=pell-s-equation","attention_api":"https://4ort.xyz/api/v1/knowledge/get_attention?entity=pell-s-equation","wikidata":"https://www.wikidata.org/wiki/Q853067","official_website":null},"trust_rules":{"wikidata-reference-support/2":"From the references in our copy of the statement: high = it cites a source (stated in P248, or a reference URL that is not Wikipedia); medium = only 'imported from Wikimedia project' or a Wikipedia URL; unscored = our copy holds no reference (older copies dropped references, so this is not evidence that Wikidata has none). Wikidata may hold more references than our copy shows. Reference support, not a probability."},"notes":[]}