{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:T7EJAEYH7KRJLPVV34YWOYGRU3","short_pith_number":"pith:T7EJAEYH","schema_version":"1.0","canonical_sha256":"9fc8901307faa295beb5df316760d1a6e123fc042f3518dfb837f130cb0e4491","source":{"kind":"arxiv","id":"1510.04173","version":1},"attestation_state":"computed","paper":{"title":"X-rays from Hot Subdwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Nicola La Palombara, Sandro Mereghetti","submitted_at":"2015-10-14T15:54:35Z","abstract_excerpt":"Thanks to the high sensitivity of the instruments on board the XMM-Newton and Chandra satellites, it has become possible to explore the properties of the X-ray emission from hot subdwarfs. The small but growing sample of hot subdwarfs detected in X-rays includes binary systems, in which the X-rays result from wind accretion onto a compact companion (white dwarf or neutron star), as well as isolated sdO stars in which X-rays are probably due to shock instabilities in the wind. X-ray observations of these low mass stars provide information which can be useful also for our understanding of the wi"},"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":"1510.04173","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-14T15:54:35Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"54cbfb69982919edfff21eb4c869f3cdb2784f78336cc95535eaee08e6b46568","abstract_canon_sha256":"8408b919bf3007c6b57bc4861adbed8bf4f3672f21d7cd52e94132c37864b18e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:33.141265Z","signature_b64":"lavCJ2QVqOGy81peUM5wjga2U0h5NA1lZIAVnxxUhnKEgiPHFvtNNGoxsZnJM3QtTvmbT7muF2bhQEmcxXAICQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fc8901307faa295beb5df316760d1a6e123fc042f3518dfb837f130cb0e4491","last_reissued_at":"2026-05-18T01:10:33.140731Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:33.140731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"X-rays from Hot Subdwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Nicola La Palombara, Sandro Mereghetti","submitted_at":"2015-10-14T15:54:35Z","abstract_excerpt":"Thanks to the high sensitivity of the instruments on board the XMM-Newton and Chandra satellites, it has become possible to explore the properties of the X-ray emission from hot subdwarfs. The small but growing sample of hot subdwarfs detected in X-rays includes binary systems, in which the X-rays result from wind accretion onto a compact companion (white dwarf or neutron star), as well as isolated sdO stars in which X-rays are probably due to shock instabilities in the wind. X-ray observations of these low mass stars provide information which can be useful also for our understanding of the wi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04173","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":"1510.04173","created_at":"2026-05-18T01:10:33.140813+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.04173v1","created_at":"2026-05-18T01:10:33.140813+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04173","created_at":"2026-05-18T01:10:33.140813+00:00"},{"alias_kind":"pith_short_12","alias_value":"T7EJAEYH7KRJ","created_at":"2026-05-18T12:29:42.218222+00:00"},{"alias_kind":"pith_short_16","alias_value":"T7EJAEYH7KRJLPVV","created_at":"2026-05-18T12:29:42.218222+00:00"},{"alias_kind":"pith_short_8","alias_value":"T7EJAEYH","created_at":"2026-05-18T12:29:42.218222+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/T7EJAEYH7KRJLPVV34YWOYGRU3","json":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3.json","graph_json":"https://pith.science/api/pith-number/T7EJAEYH7KRJLPVV34YWOYGRU3/graph.json","events_json":"https://pith.science/api/pith-number/T7EJAEYH7KRJLPVV34YWOYGRU3/events.json","paper":"https://pith.science/paper/T7EJAEYH"},"agent_actions":{"view_html":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3","download_json":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3.json","view_paper":"https://pith.science/paper/T7EJAEYH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.04173&json=true","fetch_graph":"https://pith.science/api/pith-number/T7EJAEYH7KRJLPVV34YWOYGRU3/graph.json","fetch_events":"https://pith.science/api/pith-number/T7EJAEYH7KRJLPVV34YWOYGRU3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3/action/storage_attestation","attest_author":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3/action/author_attestation","sign_citation":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3/action/citation_signature","submit_replication":"https://pith.science/pith/T7EJAEYH7KRJLPVV34YWOYGRU3/action/replication_record"}},"created_at":"2026-05-18T01:10:33.140813+00:00","updated_at":"2026-05-18T01:10:33.140813+00:00"}