{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:NLI74IYOVNSANGAQ3CLNKSVBGH","short_pith_number":"pith:NLI74IYO","schema_version":"1.0","canonical_sha256":"6ad1fe230eab64069810d896d54aa131f9da860f341363e8d1ba4a4f264cecb1","source":{"kind":"arxiv","id":"1812.09020","version":1},"attestation_state":"computed","paper":{"title":"New light curve solution of V568 Peg and first determination of its fundamental parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Diana Kjurkchieva, Sunay Ibryamov","submitted_at":"2018-12-21T09:47:31Z","abstract_excerpt":"We present V, Rc photometric observations of the short-period W UMa star V568 Peg. They allowed us to improve its period. The light curve solution revealed that V568 Peg is an overcontact binary of A subtype with moderate fill-out factor. Its components are K stars which undergo partial eclipses. The mass ratio was estimated by q-search analysis. We established existing of big cool spot on the primary component with almost the same parameters during the last 4 years. Based on our light curve solution and the GAIA distance we calculated at the first time the masses, radii and luminosities of th"},"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":"1812.09020","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-21T09:47:31Z","cross_cats_sorted":[],"title_canon_sha256":"5ad53a5b6d156da86d1c91d83a5398daa940d2c371a8ec259aab4b619a813778","abstract_canon_sha256":"335219dbbc86c37b6fb2f5ad46c95f2e8dbff3305345bf9fefc7e01d6d6c9d3f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:45.630746Z","signature_b64":"a0G9sUbSQTfMRlA4oYXsPCmspCuXPOC9rvgYZf522l2qk7eu8SBA9QWgKvGKXjFdHmFUZuk/F6BM4QmxbUxPDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ad1fe230eab64069810d896d54aa131f9da860f341363e8d1ba4a4f264cecb1","last_reissued_at":"2026-05-17T23:57:45.630098Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:45.630098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New light curve solution of V568 Peg and first determination of its fundamental parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Diana Kjurkchieva, Sunay Ibryamov","submitted_at":"2018-12-21T09:47:31Z","abstract_excerpt":"We present V, Rc photometric observations of the short-period W UMa star V568 Peg. They allowed us to improve its period. The light curve solution revealed that V568 Peg is an overcontact binary of A subtype with moderate fill-out factor. Its components are K stars which undergo partial eclipses. The mass ratio was estimated by q-search analysis. We established existing of big cool spot on the primary component with almost the same parameters during the last 4 years. Based on our light curve solution and the GAIA distance we calculated at the first time the masses, radii and luminosities of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.09020","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":"1812.09020","created_at":"2026-05-17T23:57:45.630192+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.09020v1","created_at":"2026-05-17T23:57:45.630192+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.09020","created_at":"2026-05-17T23:57:45.630192+00:00"},{"alias_kind":"pith_short_12","alias_value":"NLI74IYOVNSA","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_16","alias_value":"NLI74IYOVNSANGAQ","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_8","alias_value":"NLI74IYO","created_at":"2026-05-18T12:32:40.477152+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/NLI74IYOVNSANGAQ3CLNKSVBGH","json":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH.json","graph_json":"https://pith.science/api/pith-number/NLI74IYOVNSANGAQ3CLNKSVBGH/graph.json","events_json":"https://pith.science/api/pith-number/NLI74IYOVNSANGAQ3CLNKSVBGH/events.json","paper":"https://pith.science/paper/NLI74IYO"},"agent_actions":{"view_html":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH","download_json":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH.json","view_paper":"https://pith.science/paper/NLI74IYO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.09020&json=true","fetch_graph":"https://pith.science/api/pith-number/NLI74IYOVNSANGAQ3CLNKSVBGH/graph.json","fetch_events":"https://pith.science/api/pith-number/NLI74IYOVNSANGAQ3CLNKSVBGH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH/action/storage_attestation","attest_author":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH/action/author_attestation","sign_citation":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH/action/citation_signature","submit_replication":"https://pith.science/pith/NLI74IYOVNSANGAQ3CLNKSVBGH/action/replication_record"}},"created_at":"2026-05-17T23:57:45.630192+00:00","updated_at":"2026-05-17T23:57:45.630192+00:00"}