{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:ZGN5ONWQVBURECDB2OAL3ZCDS6","short_pith_number":"pith:ZGN5ONWQ","schema_version":"1.0","canonical_sha256":"c99bd736d0a869120861d380bde44397b21d2e9db51977a8371f5e22b2c26398","source":{"kind":"arxiv","id":"1704.01511","version":1},"attestation_state":"computed","paper":{"title":"Structure and Composition of Pluto's atmosphere from the New Horizons Solar Ultraviolet Occultation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew F. Cheng, Andrew J. Steffl, Catherine B. Olkin, Darrell F. Strobel, David J. McComas, David P. Hinson, G. Randall Gladstone, Harold A. Weaver, Ivan R. Linscott, Joel Wm. Parker, John Stone, Joshua A. Kammer, Kimberly Ennico, Kurt Retherford, Leslie A. Young, Maarten Versteeg, Michael Davis, Michael E. Summers, Michael L. Wong, Nathanial Cunningham, Oswald H.W. Siegmund, Panayotis Lavvas, Peter Gao, Rebecca Schindhelm, S. Alan Stern, Yuk L. Yung","submitted_at":"2017-04-05T16:20:55Z","abstract_excerpt":"The Alice instrument on NASA's New Horizons spacecraft observed an ultraviolet solar occultation by Pluto's atmosphere on 2015 July 14. The transmission vs. altitude was sensitive to the presence of N2, CH4, C2H2, C2H4, C2H6, and haze. We derived line-of-sight abundances and local number densities for the 5 molecular species, and line-of-sight optical depth and extinction coefficients for the haze. We found the following major conclusions: 1) We confirmed temperatures in Pluto's upper atmosphere that were colder than expected before the New Horizons flyby, with upper atmospheric temperatures n"},"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":"1704.01511","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-04-05T16:20:55Z","cross_cats_sorted":[],"title_canon_sha256":"657db005affdfe5be157c99c0fc07240de3ff6fc2291fa9bdfa15da5bea42c7d","abstract_canon_sha256":"8d59503b805da74b4faf60766b597f576dc004f6a057fac77ef42d2333c026c2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:11:08.104638Z","signature_b64":"KzUMMz3D3MDqO3do8Oys6oXG+sqnqzuDXtXZi6BrARuCV4oL0a/HUZYwrsJL1/eIh0VU7E/hrKDHR+kR02YnAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c99bd736d0a869120861d380bde44397b21d2e9db51977a8371f5e22b2c26398","last_reissued_at":"2026-07-05T03:11:08.104091Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:11:08.104091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Structure and Composition of Pluto's atmosphere from the New Horizons Solar Ultraviolet Occultation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew F. Cheng, Andrew J. Steffl, Catherine B. Olkin, Darrell F. Strobel, David J. McComas, David P. Hinson, G. Randall Gladstone, Harold A. Weaver, Ivan R. Linscott, Joel Wm. Parker, John Stone, Joshua A. Kammer, Kimberly Ennico, Kurt Retherford, Leslie A. Young, Maarten Versteeg, Michael Davis, Michael E. Summers, Michael L. Wong, Nathanial Cunningham, Oswald H.W. Siegmund, Panayotis Lavvas, Peter Gao, Rebecca Schindhelm, S. Alan Stern, Yuk L. Yung","submitted_at":"2017-04-05T16:20:55Z","abstract_excerpt":"The Alice instrument on NASA's New Horizons spacecraft observed an ultraviolet solar occultation by Pluto's atmosphere on 2015 July 14. The transmission vs. altitude was sensitive to the presence of N2, CH4, C2H2, C2H4, C2H6, and haze. We derived line-of-sight abundances and local number densities for the 5 molecular species, and line-of-sight optical depth and extinction coefficients for the haze. We found the following major conclusions: 1) We confirmed temperatures in Pluto's upper atmosphere that were colder than expected before the New Horizons flyby, with upper atmospheric temperatures n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.01511","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/1704.01511/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":"1704.01511","created_at":"2026-07-05T03:11:08.104153+00:00"},{"alias_kind":"arxiv_version","alias_value":"1704.01511v1","created_at":"2026-07-05T03:11:08.104153+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.01511","created_at":"2026-07-05T03:11:08.104153+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZGN5ONWQVBUR","created_at":"2026-07-05T03:11:08.104153+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZGN5ONWQVBURECDB","created_at":"2026-07-05T03:11:08.104153+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZGN5ONWQ","created_at":"2026-07-05T03:11:08.104153+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/ZGN5ONWQVBURECDB2OAL3ZCDS6","json":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6.json","graph_json":"https://pith.science/api/pith-number/ZGN5ONWQVBURECDB2OAL3ZCDS6/graph.json","events_json":"https://pith.science/api/pith-number/ZGN5ONWQVBURECDB2OAL3ZCDS6/events.json","paper":"https://pith.science/paper/ZGN5ONWQ"},"agent_actions":{"view_html":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6","download_json":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6.json","view_paper":"https://pith.science/paper/ZGN5ONWQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1704.01511&json=true","fetch_graph":"https://pith.science/api/pith-number/ZGN5ONWQVBURECDB2OAL3ZCDS6/graph.json","fetch_events":"https://pith.science/api/pith-number/ZGN5ONWQVBURECDB2OAL3ZCDS6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6/action/storage_attestation","attest_author":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6/action/author_attestation","sign_citation":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6/action/citation_signature","submit_replication":"https://pith.science/pith/ZGN5ONWQVBURECDB2OAL3ZCDS6/action/replication_record"}},"created_at":"2026-07-05T03:11:08.104153+00:00","updated_at":"2026-07-05T03:11:08.104153+00:00"}