{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:JIQKKVC4MVP3ZWKD4ZGZKLGEQJ","short_pith_number":"pith:JIQKKVC4","schema_version":"1.0","canonical_sha256":"4a20a5545c655fbcd943e64d952cc482578cf046c6c69e346fd269e5419e71f3","source":{"kind":"arxiv","id":"1808.00220","version":1},"attestation_state":"computed","paper":{"title":"Changes of the optical spectrum of the hypergiant $\\rho$ Cas due to a shell ejection in 2013","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"N.S. Tavolzhanskaya, V.E. Panchuk, V.G. Klochkova","submitted_at":"2018-08-01T08:26:11Z","abstract_excerpt":"Spectral monitoring of the yellow hypergiant $\\rho$ Cas with the by 6-m telescope of the Special Astrophysical Observatory with a spectral resolution of R$\\ge$60000 has led to the detection of new features in the kinematic state of its extended atmosphere following the ejection of matter in 2013. Significant changes in the profile of the H$\\alpha$ line were detected: the line had a doubled core for the first time in a 2014 spectrum, an inverse P Cygni profile on December 13, 2017, and the profile was again doubled on August 6, 2017 and September 5, 2017, but its core was strongly shifted towar"},"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":"1808.00220","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-01T08:26:11Z","cross_cats_sorted":[],"title_canon_sha256":"fd0818380c3c80f5044472fe76a83602c0e9f9bbdec2ce94c138a6a6dcfc9875","abstract_canon_sha256":"ea63a6392097477b1b41691f30c41edd0fb8b632f186a8ba7e83c23fa16753ab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:05.744785Z","signature_b64":"yGaTtLo9BJxYRQZMe6m+1pQbUH4dkPlKTgxglDGuayW0letGNQkRlPcHevki2dDGUtsyrlM9Sv4p5qZy7QMfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a20a5545c655fbcd943e64d952cc482578cf046c6c69e346fd269e5419e71f3","last_reissued_at":"2026-05-18T00:07:05.744049Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:05.744049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Changes of the optical spectrum of the hypergiant $\\rho$ Cas due to a shell ejection in 2013","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"N.S. Tavolzhanskaya, V.E. Panchuk, V.G. Klochkova","submitted_at":"2018-08-01T08:26:11Z","abstract_excerpt":"Spectral monitoring of the yellow hypergiant $\\rho$ Cas with the by 6-m telescope of the Special Astrophysical Observatory with a spectral resolution of R$\\ge$60000 has led to the detection of new features in the kinematic state of its extended atmosphere following the ejection of matter in 2013. Significant changes in the profile of the H$\\alpha$ line were detected: the line had a doubled core for the first time in a 2014 spectrum, an inverse P Cygni profile on December 13, 2017, and the profile was again doubled on August 6, 2017 and September 5, 2017, but its core was strongly shifted towar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.00220","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":"1808.00220","created_at":"2026-05-18T00:07:05.744174+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.00220v1","created_at":"2026-05-18T00:07:05.744174+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.00220","created_at":"2026-05-18T00:07:05.744174+00:00"},{"alias_kind":"pith_short_12","alias_value":"JIQKKVC4MVP3","created_at":"2026-05-18T12:32:31.084164+00:00"},{"alias_kind":"pith_short_16","alias_value":"JIQKKVC4MVP3ZWKD","created_at":"2026-05-18T12:32:31.084164+00:00"},{"alias_kind":"pith_short_8","alias_value":"JIQKKVC4","created_at":"2026-05-18T12:32:31.084164+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/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ","json":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ.json","graph_json":"https://pith.science/api/pith-number/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/graph.json","events_json":"https://pith.science/api/pith-number/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/events.json","paper":"https://pith.science/paper/JIQKKVC4"},"agent_actions":{"view_html":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ","download_json":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ.json","view_paper":"https://pith.science/paper/JIQKKVC4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.00220&json=true","fetch_graph":"https://pith.science/api/pith-number/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/graph.json","fetch_events":"https://pith.science/api/pith-number/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/action/storage_attestation","attest_author":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/action/author_attestation","sign_citation":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/action/citation_signature","submit_replication":"https://pith.science/pith/JIQKKVC4MVP3ZWKD4ZGZKLGEQJ/action/replication_record"}},"created_at":"2026-05-18T00:07:05.744174+00:00","updated_at":"2026-05-18T00:07:05.744174+00:00"}