{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:F7NCE2A4E5KAPZ6CJ3K5NFDSSM","short_pith_number":"pith:F7NCE2A4","schema_version":"1.0","canonical_sha256":"2fda22681c275407e7c24ed5d694729315cf9f2abdac546683db26bcbee9e36f","source":{"kind":"arxiv","id":"2605.19007","version":1},"attestation_state":"computed","paper":{"title":"Detection of propadiene (CH$_2$CCH$_2$), propene (C$_3$H$_6$) and non-detection of propane (C$_3$H$_8$) in Jupiter's northern polar stratosphere","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Conor A. Nixon, Glenn S. Orton, James A. Sinclair, Julianne I. Moses, Keeyoon Sung, Leigh N. Fletcher, Nicholas A. Lombardo, Patrick G. J. Irwin, Rohini S. Giles, Thomas K. Greathouse, Vincent Hue","submitted_at":"2026-05-18T18:30:07Z","abstract_excerpt":"We report the first detection of stratospheric propadiene (CH$_2$CCH$_2$) and propene (C$_3$H$_6$) at Jupiter's mid-to-high northern latitudes using IRTF-TEXES measurements recorded on March 5-6, 2025. Using radiative transfer software to quantitatively test for the presence of propadiene and propene, we report a $>$12-$\\sigma$ detection of propadiene and a $>$17-$\\sigma$ detection of propene inside Jupiter's northern auroral region (henceforth 'NAR'), where the species are most concentrated. For example, at 62$^\\circ$N inside Jupiter's NAR, we derive a 1-mbar propadiene abundance of 2.0 $\\pm$"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2605.19007","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-18T18:30:07Z","cross_cats_sorted":[],"title_canon_sha256":"5b98ab2003479a7cc1cfda6427ce33ee498cbd444ac0f358dd0bd6388fa2deb2","abstract_canon_sha256":"b0a8e49f34e604c5d3ffbc8498c30ac4534351c91a68a6930e703670475a3871"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T01:04:42.204615Z","signature_b64":"GeskqE98hxPDRB0ShwmEEZ9hqU+ui1AO2o98sI8F4f9RBC0F43i/gWUXk6/CLc0bulzFxVkzbvBnvvThtktvCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2fda22681c275407e7c24ed5d694729315cf9f2abdac546683db26bcbee9e36f","last_reissued_at":"2026-05-20T01:04:42.203853Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T01:04:42.203853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Detection of propadiene (CH$_2$CCH$_2$), propene (C$_3$H$_6$) and non-detection of propane (C$_3$H$_8$) in Jupiter's northern polar stratosphere","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Conor A. Nixon, Glenn S. Orton, James A. Sinclair, Julianne I. Moses, Keeyoon Sung, Leigh N. Fletcher, Nicholas A. Lombardo, Patrick G. J. Irwin, Rohini S. Giles, Thomas K. Greathouse, Vincent Hue","submitted_at":"2026-05-18T18:30:07Z","abstract_excerpt":"We report the first detection of stratospheric propadiene (CH$_2$CCH$_2$) and propene (C$_3$H$_6$) at Jupiter's mid-to-high northern latitudes using IRTF-TEXES measurements recorded on March 5-6, 2025. Using radiative transfer software to quantitatively test for the presence of propadiene and propene, we report a $>$12-$\\sigma$ detection of propadiene and a $>$17-$\\sigma$ detection of propene inside Jupiter's northern auroral region (henceforth 'NAR'), where the species are most concentrated. For example, at 62$^\\circ$N inside Jupiter's NAR, we derive a 1-mbar propadiene abundance of 2.0 $\\pm$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19007","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.19007/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2605.19007","created_at":"2026-05-20T01:04:42.203968+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.19007v1","created_at":"2026-05-20T01:04:42.203968+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19007","created_at":"2026-05-20T01:04:42.203968+00:00"},{"alias_kind":"pith_short_12","alias_value":"F7NCE2A4E5KA","created_at":"2026-05-20T01:04:42.203968+00:00"},{"alias_kind":"pith_short_16","alias_value":"F7NCE2A4E5KAPZ6C","created_at":"2026-05-20T01:04:42.203968+00:00"},{"alias_kind":"pith_short_8","alias_value":"F7NCE2A4","created_at":"2026-05-20T01:04:42.203968+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM","json":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM.json","graph_json":"https://pith.science/api/pith-number/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/graph.json","events_json":"https://pith.science/api/pith-number/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/events.json","paper":"https://pith.science/paper/F7NCE2A4"},"agent_actions":{"view_html":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM","download_json":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM.json","view_paper":"https://pith.science/paper/F7NCE2A4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.19007&json=true","fetch_graph":"https://pith.science/api/pith-number/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/graph.json","fetch_events":"https://pith.science/api/pith-number/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/action/storage_attestation","attest_author":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/action/author_attestation","sign_citation":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/action/citation_signature","submit_replication":"https://pith.science/pith/F7NCE2A4E5KAPZ6CJ3K5NFDSSM/action/replication_record"}},"created_at":"2026-05-20T01:04:42.203968+00:00","updated_at":"2026-05-20T01:04:42.203968+00:00"}