{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:N6H7Z6PIIMIGXCVELS6PK3KWRO","short_pith_number":"pith:N6H7Z6PI","schema_version":"1.0","canonical_sha256":"6f8ffcf9e843106b8aa45cbcf56d568b83fa03c4ba06de00848f39eacbaff162","source":{"kind":"arxiv","id":"2210.01809","version":1},"attestation_state":"computed","paper":{"title":"A dense $\\mathbf{0.1 M_{\\rm \\odot}}$ star in a 51-minute orbital period eclipsing binary","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Andrew J. Drake, Boris T. G\\\"ansicke, Deepto Chakrabarty, Eric C. Bellm, Erin Kara, Frank J. Masci, Ilaria Caiazzo, Jan van Roestel, Jim Fuller, Kareem El-Badry, Kevin B. Burdge, Matthew J. Graham, Pablo Rodr\\'iguez-Gil, Przemek Mr\\'oz, Reed Riddle, Richard G. Dekany, Robert A. Simcoe, Roger M. Smith, Russ R. Laher, Saul Rappaport, S. P. Littlefair, S. R. Kulkarni, Steven L. Groom, Thomas A. Prince, Thomas R. Marsh, V. S. Dhillon, Warren R. Brown","submitted_at":"2022-10-04T18:00:00Z","abstract_excerpt":"In over a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes. One way to achieve these short periods requires the donor star to have undergone substantial nuclear evolution prior to interacting with the white dwarf, and it is expected that these objects will transition to helium accretion. These transitional CVs have been proposed as progenitors of helium CVs. However, no known transitional CV is expected to reach an orbital period short enough to account for most of the helium CV population"},"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":"2210.01809","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-10-04T18:00:00Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8cf350f3c7b162521d848a9c6c1da9552863714f62cbee7712a7557b44411c55","abstract_canon_sha256":"a1ad0de8862b8677781ee311cd2acd6e44ab439d6d1d27c4376682705250d164"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:05:10.188636Z","signature_b64":"KuzHb1gJy3ArN/zMYeLgiDkVagehbhJ0emmkfHzee3kpaNkan34TPLeRajQVePEY/H/NVTMcr23q/rvaxM0eBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f8ffcf9e843106b8aa45cbcf56d568b83fa03c4ba06de00848f39eacbaff162","last_reissued_at":"2026-07-05T05:05:10.188218Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:05:10.188218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A dense $\\mathbf{0.1 M_{\\rm \\odot}}$ star in a 51-minute orbital period eclipsing binary","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Andrew J. Drake, Boris T. G\\\"ansicke, Deepto Chakrabarty, Eric C. Bellm, Erin Kara, Frank J. Masci, Ilaria Caiazzo, Jan van Roestel, Jim Fuller, Kareem El-Badry, Kevin B. Burdge, Matthew J. Graham, Pablo Rodr\\'iguez-Gil, Przemek Mr\\'oz, Reed Riddle, Richard G. Dekany, Robert A. Simcoe, Roger M. Smith, Russ R. Laher, Saul Rappaport, S. P. Littlefair, S. R. Kulkarni, Steven L. Groom, Thomas A. Prince, Thomas R. Marsh, V. S. Dhillon, Warren R. Brown","submitted_at":"2022-10-04T18:00:00Z","abstract_excerpt":"In over a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes. One way to achieve these short periods requires the donor star to have undergone substantial nuclear evolution prior to interacting with the white dwarf, and it is expected that these objects will transition to helium accretion. These transitional CVs have been proposed as progenitors of helium CVs. However, no known transitional CV is expected to reach an orbital period short enough to account for most of the helium CV population"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.01809","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2210.01809/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2210.01809","created_at":"2026-07-05T05:05:10.188275+00:00"},{"alias_kind":"arxiv_version","alias_value":"2210.01809v1","created_at":"2026-07-05T05:05:10.188275+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.01809","created_at":"2026-07-05T05:05:10.188275+00:00"},{"alias_kind":"pith_short_12","alias_value":"N6H7Z6PIIMIG","created_at":"2026-07-05T05:05:10.188275+00:00"},{"alias_kind":"pith_short_16","alias_value":"N6H7Z6PIIMIGXCVE","created_at":"2026-07-05T05:05:10.188275+00:00"},{"alias_kind":"pith_short_8","alias_value":"N6H7Z6PI","created_at":"2026-07-05T05:05:10.188275+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/N6H7Z6PIIMIGXCVELS6PK3KWRO","json":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO.json","graph_json":"https://pith.science/api/pith-number/N6H7Z6PIIMIGXCVELS6PK3KWRO/graph.json","events_json":"https://pith.science/api/pith-number/N6H7Z6PIIMIGXCVELS6PK3KWRO/events.json","paper":"https://pith.science/paper/N6H7Z6PI"},"agent_actions":{"view_html":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO","download_json":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO.json","view_paper":"https://pith.science/paper/N6H7Z6PI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2210.01809&json=true","fetch_graph":"https://pith.science/api/pith-number/N6H7Z6PIIMIGXCVELS6PK3KWRO/graph.json","fetch_events":"https://pith.science/api/pith-number/N6H7Z6PIIMIGXCVELS6PK3KWRO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO/action/storage_attestation","attest_author":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO/action/author_attestation","sign_citation":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO/action/citation_signature","submit_replication":"https://pith.science/pith/N6H7Z6PIIMIGXCVELS6PK3KWRO/action/replication_record"}},"created_at":"2026-07-05T05:05:10.188275+00:00","updated_at":"2026-07-05T05:05:10.188275+00:00"}