{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:UX73WIGRSXVSS3J25PIN27D63W","short_pith_number":"pith:UX73WIGR","schema_version":"1.0","canonical_sha256":"a5ffbb20d195eb296d3aebd0dd7c7edda68cc3dd9ba092670534ba584b227616","source":{"kind":"arxiv","id":"0904.0600","version":1},"attestation_state":"computed","paper":{"title":"V440 Per: the longest period overtone Cepheid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.SR","authors_text":"A. Rozek, A. Schwarzenberg-Czerny, K. Kaminski, M. Fagas, P. Bartczak, P. Moskalik, R. Baranowski, R. Ratajczak, R. Smolec, T. Kwiatkowski, W. Borczyk, W. Dimitrov","submitted_at":"2009-04-03T15:46:33Z","abstract_excerpt":"V440 Per is a Population I Cepheid with the period of 7.57 day and low amplitude, almost sinusoidal light and radial velocity curves. With no reliable data on the 1st harmonic, its pulsation mode identification remained controversial. We obtained a radial velocity curve of V440 Per with our new high precision and high throughput Poznan Spectroscopic Telescope. Our data reach the accuracy of 130 m/s per individual measurement and yield a secure detection of the 1st harmonic with the amplitude of A_2= 140+/- 15 m/s. The velocity Fourier phase \\phi_21 of V440 Per is inconsistent at the 7.25 \\sigm"},"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":"0904.0600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-03T15:46:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"681944585b0bde4793f5b2b24548230f33f1af24f0c171d4b5f118805bb28a8b","abstract_canon_sha256":"17de269cd90e78dce656df00f0102ed581abb1495667d9bd2adce691a2a38a12"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:59.956457Z","signature_b64":"XK3DnfmrsS930KnCTSFbhQQIwMD164KLgQr8277iYwYHkelWA6Cu/uuQ/tHX9jV4Ocl+OCIrg7uHJq+ALnlwCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5ffbb20d195eb296d3aebd0dd7c7edda68cc3dd9ba092670534ba584b227616","last_reissued_at":"2026-05-18T02:34:59.955972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:59.955972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"V440 Per: the longest period overtone Cepheid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.SR","authors_text":"A. Rozek, A. Schwarzenberg-Czerny, K. Kaminski, M. Fagas, P. Bartczak, P. Moskalik, R. Baranowski, R. Ratajczak, R. Smolec, T. Kwiatkowski, W. Borczyk, W. Dimitrov","submitted_at":"2009-04-03T15:46:33Z","abstract_excerpt":"V440 Per is a Population I Cepheid with the period of 7.57 day and low amplitude, almost sinusoidal light and radial velocity curves. With no reliable data on the 1st harmonic, its pulsation mode identification remained controversial. We obtained a radial velocity curve of V440 Per with our new high precision and high throughput Poznan Spectroscopic Telescope. Our data reach the accuracy of 130 m/s per individual measurement and yield a secure detection of the 1st harmonic with the amplitude of A_2= 140+/- 15 m/s. The velocity Fourier phase \\phi_21 of V440 Per is inconsistent at the 7.25 \\sigm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.0600","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":"0904.0600","created_at":"2026-05-18T02:34:59.956050+00:00"},{"alias_kind":"arxiv_version","alias_value":"0904.0600v1","created_at":"2026-05-18T02:34:59.956050+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.0600","created_at":"2026-05-18T02:34:59.956050+00:00"},{"alias_kind":"pith_short_12","alias_value":"UX73WIGRSXVS","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_16","alias_value":"UX73WIGRSXVSS3J2","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_8","alias_value":"UX73WIGR","created_at":"2026-05-18T12:26:02.257875+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/UX73WIGRSXVSS3J25PIN27D63W","json":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W.json","graph_json":"https://pith.science/api/pith-number/UX73WIGRSXVSS3J25PIN27D63W/graph.json","events_json":"https://pith.science/api/pith-number/UX73WIGRSXVSS3J25PIN27D63W/events.json","paper":"https://pith.science/paper/UX73WIGR"},"agent_actions":{"view_html":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W","download_json":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W.json","view_paper":"https://pith.science/paper/UX73WIGR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0904.0600&json=true","fetch_graph":"https://pith.science/api/pith-number/UX73WIGRSXVSS3J25PIN27D63W/graph.json","fetch_events":"https://pith.science/api/pith-number/UX73WIGRSXVSS3J25PIN27D63W/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W/action/storage_attestation","attest_author":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W/action/author_attestation","sign_citation":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W/action/citation_signature","submit_replication":"https://pith.science/pith/UX73WIGRSXVSS3J25PIN27D63W/action/replication_record"}},"created_at":"2026-05-18T02:34:59.956050+00:00","updated_at":"2026-05-18T02:34:59.956050+00:00"}