{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:BQNDZPYHSY4Z275OHM4T4PXBQX","short_pith_number":"pith:BQNDZPYH","schema_version":"1.0","canonical_sha256":"0c1a3cbf0796399d7fae3b393e3ee185da42a636e8f4543c9efe428997deac9f","source":{"kind":"arxiv","id":"1211.2475","version":4},"attestation_state":"computed","paper":{"title":"The ongoing pursuit of R Coronae Borealis stars: ASAS-3 survey strikes again","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Pilecki, D. Kilkenny, D. L. Welch, G. C. Clayton, L. Wyrzykowski, P. Tisserand","submitted_at":"2012-11-11T23:00:08Z","abstract_excerpt":"R Coronae Borealis stars (RCBs) are rare, hydrogen-deficient, carbon-rich supergiant variable stars that are likely the evolved merger products of pairs of CO and He white dwarfs. Only 55 RCB stars are known in our galaxy and their distribution on the sky is weighted heavily by microlensing survey field positions. A less-biased wide-area survey would provide the ability to test competing evolutionary scenarios, understand the population or populations that produce RCBs and constraint their formation rate. The ASAS-3 survey monitored the sky south of declination +28 deg since 2000 to a limiting"},"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":"1211.2475","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-11-11T23:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"3a660276d232cb3d2e7570b555fcdebc91de31fce0e2e6d7f5da932d19f9713d","abstract_canon_sha256":"c0b6606e7dab163a515cb1bf6764d23f039c7167ecd231cb5929d98ac8a07e52"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:16.943570Z","signature_b64":"UTpxDnEgcyWZbFwtmJkMdvQiSnCNkjC3wxyJz7nf7ThQ4eVxxeQmew7pzH/h1Izxe6O68vg6khipxEXlFHIqBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0c1a3cbf0796399d7fae3b393e3ee185da42a636e8f4543c9efe428997deac9f","last_reissued_at":"2026-05-18T01:53:16.942914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:16.942914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The ongoing pursuit of R Coronae Borealis stars: ASAS-3 survey strikes again","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Pilecki, D. Kilkenny, D. L. Welch, G. C. Clayton, L. Wyrzykowski, P. Tisserand","submitted_at":"2012-11-11T23:00:08Z","abstract_excerpt":"R Coronae Borealis stars (RCBs) are rare, hydrogen-deficient, carbon-rich supergiant variable stars that are likely the evolved merger products of pairs of CO and He white dwarfs. Only 55 RCB stars are known in our galaxy and their distribution on the sky is weighted heavily by microlensing survey field positions. A less-biased wide-area survey would provide the ability to test competing evolutionary scenarios, understand the population or populations that produce RCBs and constraint their formation rate. The ASAS-3 survey monitored the sky south of declination +28 deg since 2000 to a limiting"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.2475","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":"1211.2475","created_at":"2026-05-18T01:53:16.943015+00:00"},{"alias_kind":"arxiv_version","alias_value":"1211.2475v4","created_at":"2026-05-18T01:53:16.943015+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.2475","created_at":"2026-05-18T01:53:16.943015+00:00"},{"alias_kind":"pith_short_12","alias_value":"BQNDZPYHSY4Z","created_at":"2026-05-18T12:27:01.376967+00:00"},{"alias_kind":"pith_short_16","alias_value":"BQNDZPYHSY4Z275O","created_at":"2026-05-18T12:27:01.376967+00:00"},{"alias_kind":"pith_short_8","alias_value":"BQNDZPYH","created_at":"2026-05-18T12:27:01.376967+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/BQNDZPYHSY4Z275OHM4T4PXBQX","json":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX.json","graph_json":"https://pith.science/api/pith-number/BQNDZPYHSY4Z275OHM4T4PXBQX/graph.json","events_json":"https://pith.science/api/pith-number/BQNDZPYHSY4Z275OHM4T4PXBQX/events.json","paper":"https://pith.science/paper/BQNDZPYH"},"agent_actions":{"view_html":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX","download_json":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX.json","view_paper":"https://pith.science/paper/BQNDZPYH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1211.2475&json=true","fetch_graph":"https://pith.science/api/pith-number/BQNDZPYHSY4Z275OHM4T4PXBQX/graph.json","fetch_events":"https://pith.science/api/pith-number/BQNDZPYHSY4Z275OHM4T4PXBQX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX/action/storage_attestation","attest_author":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX/action/author_attestation","sign_citation":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX/action/citation_signature","submit_replication":"https://pith.science/pith/BQNDZPYHSY4Z275OHM4T4PXBQX/action/replication_record"}},"created_at":"2026-05-18T01:53:16.943015+00:00","updated_at":"2026-05-18T01:53:16.943015+00:00"}