{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:DRUWKMJSUSZSYFUO5AMHK2UBDT","short_pith_number":"pith:DRUWKMJS","schema_version":"1.0","canonical_sha256":"1c69653132a4b32c168ee818756a811cf76e61afe87ee727301da2c46fd6e09e","source":{"kind":"arxiv","id":"1512.07897","version":1},"attestation_state":"computed","paper":{"title":"The low mass ratio contact binary system V728 Herculis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Burak Ulas, Naci Erkan","submitted_at":"2015-12-24T20:27:01Z","abstract_excerpt":"We present the orbital period study and the photometric analys of the contact binary system V728 Her. Our orbital period analysis shows that the period of the system increases (dP/dt=1.92x10^-7dyr^-1) and the mass transfer rate from the less massive component to more massive one is 2.51x10^-8M_suny^-1. In addition, an advanced sinusoidal variation in period can be attributed to the light-time effect by a tertiary component or the Applegate mechanism triggered by the secondary component. The simultaneous multicolor BVR light and radial velocity curves solution indicates that the physical parame"},"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":"1512.07897","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-24T20:27:01Z","cross_cats_sorted":[],"title_canon_sha256":"0dfa5ecd927584e17c8207ac9cffb87e4e9b88be46eb08d36eb1e51db0f5ca25","abstract_canon_sha256":"f287e76636451ccf88ff0875a0c0a8790ad6a852a116074b12d94dfa4c19a10e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:45.838096Z","signature_b64":"2m2p5irhMPmF9BZRTBcDYRYkOgbCucEu3jWZEsQA9eweFmq0Q67uLlY0/Ya+/ex7nUgc8/OpeAkoGUequWZRDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c69653132a4b32c168ee818756a811cf76e61afe87ee727301da2c46fd6e09e","last_reissued_at":"2026-05-18T01:23:45.837581Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:45.837581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The low mass ratio contact binary system V728 Herculis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Burak Ulas, Naci Erkan","submitted_at":"2015-12-24T20:27:01Z","abstract_excerpt":"We present the orbital period study and the photometric analys of the contact binary system V728 Her. Our orbital period analysis shows that the period of the system increases (dP/dt=1.92x10^-7dyr^-1) and the mass transfer rate from the less massive component to more massive one is 2.51x10^-8M_suny^-1. In addition, an advanced sinusoidal variation in period can be attributed to the light-time effect by a tertiary component or the Applegate mechanism triggered by the secondary component. The simultaneous multicolor BVR light and radial velocity curves solution indicates that the physical parame"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07897","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":"1512.07897","created_at":"2026-05-18T01:23:45.837671+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.07897v1","created_at":"2026-05-18T01:23:45.837671+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07897","created_at":"2026-05-18T01:23:45.837671+00:00"},{"alias_kind":"pith_short_12","alias_value":"DRUWKMJSUSZS","created_at":"2026-05-18T12:29:17.054201+00:00"},{"alias_kind":"pith_short_16","alias_value":"DRUWKMJSUSZSYFUO","created_at":"2026-05-18T12:29:17.054201+00:00"},{"alias_kind":"pith_short_8","alias_value":"DRUWKMJS","created_at":"2026-05-18T12:29:17.054201+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/DRUWKMJSUSZSYFUO5AMHK2UBDT","json":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT.json","graph_json":"https://pith.science/api/pith-number/DRUWKMJSUSZSYFUO5AMHK2UBDT/graph.json","events_json":"https://pith.science/api/pith-number/DRUWKMJSUSZSYFUO5AMHK2UBDT/events.json","paper":"https://pith.science/paper/DRUWKMJS"},"agent_actions":{"view_html":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT","download_json":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT.json","view_paper":"https://pith.science/paper/DRUWKMJS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.07897&json=true","fetch_graph":"https://pith.science/api/pith-number/DRUWKMJSUSZSYFUO5AMHK2UBDT/graph.json","fetch_events":"https://pith.science/api/pith-number/DRUWKMJSUSZSYFUO5AMHK2UBDT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT/action/storage_attestation","attest_author":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT/action/author_attestation","sign_citation":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT/action/citation_signature","submit_replication":"https://pith.science/pith/DRUWKMJSUSZSYFUO5AMHK2UBDT/action/replication_record"}},"created_at":"2026-05-18T01:23:45.837671+00:00","updated_at":"2026-05-18T01:23:45.837671+00:00"}