{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:SY2KOXQD7RTPNQBUTOJJJJZQ26","short_pith_number":"pith:SY2KOXQD","schema_version":"1.0","canonical_sha256":"9634a75e03fc66f6c0349b9294a730d7a17b69606f7fc8f5f8a1652a8ef8f709","source":{"kind":"arxiv","id":"1804.11272","version":4},"attestation_state":"computed","paper":{"title":"A study of light travel time effect in short-period MOA eclipsing binaries via eclipse timing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Bhattacharya, A. Fukui, A. Sharan, A. Yonehara, D. J. Sullivan, D. P. Bennett, D. Suzuki, F. Abe, I. A. Bond, K. Masuda, K. Ohnishi, M. C. A. Li, M. Donachie, M. Nagakane, N. J. Rattenbury, N. Koshimoto, P. Evans, P. J. Tristram, R. Barry, To. Saito, T. Sumi, Y. Asakura, Y. Hirao, Y. Itow, Y. Matsubara, Y. Muraki","submitted_at":"2018-04-30T15:21:41Z","abstract_excerpt":"A sample of 542 eclipsing binaries (EBs) with periods shorter than 2 d were selected from the Microlensing Observations in Astrophysics (MOA) EB catalogue (Li et al. 2017) for eclipse-time variation analysis. For this sample we were able to obtain the time series from MOA-II that span 9.5yr. We discovered 91 EBs, out of the 542 EBs, with detected light-travel-time effect signals suggesting the presence of tertiary companions of orbiting periods from 250 d-28 yr. The frequency of EBs with tertiary companions in our sample increases as the period decreases and reaches a value of 0.65 for contact"},"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":"1804.11272","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-30T15:21:41Z","cross_cats_sorted":[],"title_canon_sha256":"f713dd8210fd2dc7cae24cce6ebf30a536549e0323757fe3b8db6c9c5b5d75da","abstract_canon_sha256":"2608b2bbaece689b4e8d2fd97daec83083e91e44cbf0c193a1630a7397cce398"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:17.661373Z","signature_b64":"X5dZz8lPwWYQuFanIhO0JmYCpBd+pu8dLzH5Qw+qTN2old2vRV6hw4co4VRBDzHLzY/tXBOAQWFCCh808qudCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9634a75e03fc66f6c0349b9294a730d7a17b69606f7fc8f5f8a1652a8ef8f709","last_reissued_at":"2026-05-18T00:07:17.660710Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:17.660710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A study of light travel time effect in short-period MOA eclipsing binaries via eclipse timing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Bhattacharya, A. Fukui, A. Sharan, A. Yonehara, D. J. Sullivan, D. P. Bennett, D. Suzuki, F. Abe, I. A. Bond, K. Masuda, K. Ohnishi, M. C. A. Li, M. Donachie, M. Nagakane, N. J. Rattenbury, N. Koshimoto, P. Evans, P. J. Tristram, R. Barry, To. Saito, T. Sumi, Y. Asakura, Y. Hirao, Y. Itow, Y. Matsubara, Y. Muraki","submitted_at":"2018-04-30T15:21:41Z","abstract_excerpt":"A sample of 542 eclipsing binaries (EBs) with periods shorter than 2 d were selected from the Microlensing Observations in Astrophysics (MOA) EB catalogue (Li et al. 2017) for eclipse-time variation analysis. For this sample we were able to obtain the time series from MOA-II that span 9.5yr. We discovered 91 EBs, out of the 542 EBs, with detected light-travel-time effect signals suggesting the presence of tertiary companions of orbiting periods from 250 d-28 yr. The frequency of EBs with tertiary companions in our sample increases as the period decreases and reaches a value of 0.65 for contact"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.11272","kind":"arxiv","version":4},"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":"1804.11272","created_at":"2026-05-18T00:07:17.660810+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.11272v4","created_at":"2026-05-18T00:07:17.660810+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.11272","created_at":"2026-05-18T00:07:17.660810+00:00"},{"alias_kind":"pith_short_12","alias_value":"SY2KOXQD7RTP","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"SY2KOXQD7RTPNQBU","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"SY2KOXQD","created_at":"2026-05-18T12:32:53.628368+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/SY2KOXQD7RTPNQBUTOJJJJZQ26","json":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26.json","graph_json":"https://pith.science/api/pith-number/SY2KOXQD7RTPNQBUTOJJJJZQ26/graph.json","events_json":"https://pith.science/api/pith-number/SY2KOXQD7RTPNQBUTOJJJJZQ26/events.json","paper":"https://pith.science/paper/SY2KOXQD"},"agent_actions":{"view_html":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26","download_json":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26.json","view_paper":"https://pith.science/paper/SY2KOXQD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.11272&json=true","fetch_graph":"https://pith.science/api/pith-number/SY2KOXQD7RTPNQBUTOJJJJZQ26/graph.json","fetch_events":"https://pith.science/api/pith-number/SY2KOXQD7RTPNQBUTOJJJJZQ26/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26/action/storage_attestation","attest_author":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26/action/author_attestation","sign_citation":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26/action/citation_signature","submit_replication":"https://pith.science/pith/SY2KOXQD7RTPNQBUTOJJJJZQ26/action/replication_record"}},"created_at":"2026-05-18T00:07:17.660810+00:00","updated_at":"2026-05-18T00:07:17.660810+00:00"}