{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:KB3S7WCDREDEZ74RZT3Y7VWWEU","short_pith_number":"pith:KB3S7WCD","schema_version":"1.0","canonical_sha256":"50772fd84389064cff91ccf78fd6d6253df6096400f1fb0693e96ef893eef410","source":{"kind":"arxiv","id":"1903.02918","version":1},"attestation_state":"computed","paper":{"title":"Exploring the role of X-ray reprocessing and irradiation in the anomalous bright optical outbursts of A0538-66","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Santangelo, K. Hryniewicz, L. Ducci, P. Romano, S. Mereghetti","submitted_at":"2019-03-07T14:01:22Z","abstract_excerpt":"In 1981, the Be/X-ray binary (Be/XRB) A0538-66 showed outbursts characterized by high peak luminosities in the X-ray and optical bands. The optical outbursts were qualitatively explained as X-ray reprocessing in a gas cloud surrounding the binary system. Since then, further important information about A0538-66 have been obtained, and sophisticated photoionization codes have been developed to calculate the radiation emerging from a gas nebula illuminated by a central X-ray source. In the light of the new information and tools available, we studied again the enhanced optical emission displayed b"},"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":"1903.02918","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-07T14:01:22Z","cross_cats_sorted":[],"title_canon_sha256":"e9bb687cadf22af585c3d37c7c21265f36190de750a29027d32be6dcc0fdbd03","abstract_canon_sha256":"6e5182eeb6b1f2a95f2a672e0897320237bd487f03be18ac7da016236b571550"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:38.654047Z","signature_b64":"SXRU9ERhhG06yd60PWjrLoDodpSM3+HzWcjmmUFW/M2QVEEY6cYwkZTMB+ARNQnDZiLWZQgOXXkdxtY6SBGaBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50772fd84389064cff91ccf78fd6d6253df6096400f1fb0693e96ef893eef410","last_reissued_at":"2026-05-17T23:49:38.653409Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:38.653409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exploring the role of X-ray reprocessing and irradiation in the anomalous bright optical outbursts of A0538-66","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Santangelo, K. Hryniewicz, L. Ducci, P. Romano, S. Mereghetti","submitted_at":"2019-03-07T14:01:22Z","abstract_excerpt":"In 1981, the Be/X-ray binary (Be/XRB) A0538-66 showed outbursts characterized by high peak luminosities in the X-ray and optical bands. The optical outbursts were qualitatively explained as X-ray reprocessing in a gas cloud surrounding the binary system. Since then, further important information about A0538-66 have been obtained, and sophisticated photoionization codes have been developed to calculate the radiation emerging from a gas nebula illuminated by a central X-ray source. In the light of the new information and tools available, we studied again the enhanced optical emission displayed b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02918","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":"1903.02918","created_at":"2026-05-17T23:49:38.653534+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.02918v1","created_at":"2026-05-17T23:49:38.653534+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02918","created_at":"2026-05-17T23:49:38.653534+00:00"},{"alias_kind":"pith_short_12","alias_value":"KB3S7WCDREDE","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_16","alias_value":"KB3S7WCDREDEZ74R","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_8","alias_value":"KB3S7WCD","created_at":"2026-05-18T12:33:21.387695+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/KB3S7WCDREDEZ74RZT3Y7VWWEU","json":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU.json","graph_json":"https://pith.science/api/pith-number/KB3S7WCDREDEZ74RZT3Y7VWWEU/graph.json","events_json":"https://pith.science/api/pith-number/KB3S7WCDREDEZ74RZT3Y7VWWEU/events.json","paper":"https://pith.science/paper/KB3S7WCD"},"agent_actions":{"view_html":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU","download_json":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU.json","view_paper":"https://pith.science/paper/KB3S7WCD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.02918&json=true","fetch_graph":"https://pith.science/api/pith-number/KB3S7WCDREDEZ74RZT3Y7VWWEU/graph.json","fetch_events":"https://pith.science/api/pith-number/KB3S7WCDREDEZ74RZT3Y7VWWEU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU/action/storage_attestation","attest_author":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU/action/author_attestation","sign_citation":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU/action/citation_signature","submit_replication":"https://pith.science/pith/KB3S7WCDREDEZ74RZT3Y7VWWEU/action/replication_record"}},"created_at":"2026-05-17T23:49:38.653534+00:00","updated_at":"2026-05-17T23:49:38.653534+00:00"}