{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:F7NCE2A4E5KAPZ6CJ3K5NFDSSM","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b0a8e49f34e604c5d3ffbc8498c30ac4534351c91a68a6930e703670475a3871","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-18T18:30:07Z","title_canon_sha256":"5b98ab2003479a7cc1cfda6427ce33ee498cbd444ac0f358dd0bd6388fa2deb2"},"schema_version":"1.0","source":{"id":"2605.19007","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19007","created_at":"2026-05-20T01:04:42Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19007v1","created_at":"2026-05-20T01:04:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19007","created_at":"2026-05-20T01:04:42Z"},{"alias_kind":"pith_short_12","alias_value":"F7NCE2A4E5KA","created_at":"2026-05-20T01:04:42Z"},{"alias_kind":"pith_short_16","alias_value":"F7NCE2A4E5KAPZ6C","created_at":"2026-05-20T01:04:42Z"},{"alias_kind":"pith_short_8","alias_value":"F7NCE2A4","created_at":"2026-05-20T01:04:42Z"}],"graph_snapshots":[{"event_id":"sha256:cdbf33a3bf336770414ab1106643e6fabb1b501df2771664f57c73e444340450","target":"graph","created_at":"2026-05-20T01:04:42Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.19007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"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 $\\pm$","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","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-18T18:30:07Z","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"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19007","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b2352b47bffc4b512c898a3971f44c9461a0281bad27ca9730077657f9e0d750","target":"record","created_at":"2026-05-20T01:04:42Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"b0a8e49f34e604c5d3ffbc8498c30ac4534351c91a68a6930e703670475a3871","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-18T18:30:07Z","title_canon_sha256":"5b98ab2003479a7cc1cfda6427ce33ee498cbd444ac0f358dd0bd6388fa2deb2"},"schema_version":"1.0","source":{"id":"2605.19007","kind":"arxiv","version":1}},"canonical_sha256":"2fda22681c275407e7c24ed5d694729315cf9f2abdac546683db26bcbee9e36f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2fda22681c275407e7c24ed5d694729315cf9f2abdac546683db26bcbee9e36f","first_computed_at":"2026-05-20T01:04:42.203853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T01:04:42.203853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GeskqE98hxPDRB0ShwmEEZ9hqU+ui1AO2o98sI8F4f9RBC0F43i/gWUXk6/CLc0bulzFxVkzbvBnvvThtktvCw==","signature_status":"signed_v1","signed_at":"2026-05-20T01:04:42.204615Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.19007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2352b47bffc4b512c898a3971f44c9461a0281bad27ca9730077657f9e0d750","sha256:cdbf33a3bf336770414ab1106643e6fabb1b501df2771664f57c73e444340450","sha256:466729af4d5967b725c351e73709bc94ac0ec9158ef2efd9a0c3424dc4bd4da2"],"state_sha256":"8a3a6dbfe98b97110355936e65b38fbfb7f8e675ce9e5f25f6ccff0f0c9b6cbb"}