{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:RIKBS5M4AJREWBREVM5N45BRJL","short_pith_number":"pith:RIKBS5M4","schema_version":"1.0","canonical_sha256":"8a1419759c02624b0624ab3ade74314ad7bff22d326973a60b9f504109ebb0cf","source":{"kind":"arxiv","id":"1109.6145","version":1},"attestation_state":"computed","paper":{"title":"Herschel/HIFI observations of molecular emission in protoplanetary nebulae and young planetary nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J. Alcolea, R. Soria-Ruiz, the HIFISTARS team, V. Bujarrabal","submitted_at":"2011-09-28T09:34:06Z","abstract_excerpt":"We performed Herschel/HIFI observations of intermediate-excitation molecular lines in the far-infrared/submillimeter range in a sample of ten protoplanetary nebulae and young planetary nebulae. The high spectral resolution provided by HIFI yields accurate measurements of the line profiles. The observation of these high-energy transitions allows an accurate study of the excitation conditions, particularly in the warm gas, which cannot be properly studied from the low-energy lines.\n  We have detected FIR/sub-mm lines of several molecules, in particular of 12CO, 13CO, and H2O. Emission from other"},"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":"1109.6145","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-28T09:34:06Z","cross_cats_sorted":[],"title_canon_sha256":"76c45fc097239b8583e0c873b397d628dc6a9da6e11635229c54d06f9063af54","abstract_canon_sha256":"955cff9924dffc3ca2aa60b4c405a43e2a4e1edebcd9a9d12e3ce9829889b06d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:22.255473Z","signature_b64":"60ZXeTdwAS6vYu5xjEe1quwerGPEW22GtiXv5g7Ete/3EgsNTNGuzBZQpxkpjlw45KgulP3jdNRC8EbGfIcpBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a1419759c02624b0624ab3ade74314ad7bff22d326973a60b9f504109ebb0cf","last_reissued_at":"2026-05-18T02:00:22.254922Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:22.254922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Herschel/HIFI observations of molecular emission in protoplanetary nebulae and young planetary nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J. Alcolea, R. Soria-Ruiz, the HIFISTARS team, V. Bujarrabal","submitted_at":"2011-09-28T09:34:06Z","abstract_excerpt":"We performed Herschel/HIFI observations of intermediate-excitation molecular lines in the far-infrared/submillimeter range in a sample of ten protoplanetary nebulae and young planetary nebulae. The high spectral resolution provided by HIFI yields accurate measurements of the line profiles. The observation of these high-energy transitions allows an accurate study of the excitation conditions, particularly in the warm gas, which cannot be properly studied from the low-energy lines.\n  We have detected FIR/sub-mm lines of several molecules, in particular of 12CO, 13CO, and H2O. Emission from other"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.6145","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":""},"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":"1109.6145","created_at":"2026-05-18T02:00:22.255010+00:00"},{"alias_kind":"arxiv_version","alias_value":"1109.6145v1","created_at":"2026-05-18T02:00:22.255010+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.6145","created_at":"2026-05-18T02:00:22.255010+00:00"},{"alias_kind":"pith_short_12","alias_value":"RIKBS5M4AJRE","created_at":"2026-05-18T12:26:41.206345+00:00"},{"alias_kind":"pith_short_16","alias_value":"RIKBS5M4AJREWBRE","created_at":"2026-05-18T12:26:41.206345+00:00"},{"alias_kind":"pith_short_8","alias_value":"RIKBS5M4","created_at":"2026-05-18T12:26:41.206345+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/RIKBS5M4AJREWBREVM5N45BRJL","json":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL.json","graph_json":"https://pith.science/api/pith-number/RIKBS5M4AJREWBREVM5N45BRJL/graph.json","events_json":"https://pith.science/api/pith-number/RIKBS5M4AJREWBREVM5N45BRJL/events.json","paper":"https://pith.science/paper/RIKBS5M4"},"agent_actions":{"view_html":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL","download_json":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL.json","view_paper":"https://pith.science/paper/RIKBS5M4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1109.6145&json=true","fetch_graph":"https://pith.science/api/pith-number/RIKBS5M4AJREWBREVM5N45BRJL/graph.json","fetch_events":"https://pith.science/api/pith-number/RIKBS5M4AJREWBREVM5N45BRJL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL/action/storage_attestation","attest_author":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL/action/author_attestation","sign_citation":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL/action/citation_signature","submit_replication":"https://pith.science/pith/RIKBS5M4AJREWBREVM5N45BRJL/action/replication_record"}},"created_at":"2026-05-18T02:00:22.255010+00:00","updated_at":"2026-05-18T02:00:22.255010+00:00"}