{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FPCLFWRQONAHEOWZTZ5D3HQNWQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c5bb762448e3f3b4403945a231d1878e252d3e43c62b187605f36516feadd224","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-02T14:52:05Z","title_canon_sha256":"1fc6a1019e18003cd86755ad84174b865e114dc2031ce3651d75a66db5d5bcbb"},"schema_version":"1.0","source":{"id":"1305.0459","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.0459","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"arxiv_version","alias_value":"1305.0459v1","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.0459","created_at":"2026-05-18T01:50:13Z"},{"alias_kind":"pith_short_12","alias_value":"FPCLFWRQONAH","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FPCLFWRQONAHEOWZ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FPCLFWRQ","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:d7210ef2ffe7438137dd876abca73c849c0a85e102e82fe1f77b48e7a01aa6c3","target":"graph","created_at":"2026-05-18T01:50:13Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The mechanism by which supergiant (sg)B[e] stars support cool, dense dusty discs/tori and their physical relationship with other evolved, massive stars such as luminous blue variables is uncertain. In order to investigate both issues we have analysed the long term behaviour of the canonical sgB[e] star LHA 115-S 18. We employed the OGLE II-IV lightcurve to search for (a-)periodic variability and supplemented these data with new and historic spectroscopy. In contrast to historical expectations for sgB[e] stars, S18 is both photometrically and spectroscopically highly variable. The lightcurve is","authors_text":"A. Udalski, E. S. Bartlett, F. Haberl, I. Negueruela, J. B. Lamb, J. S. Clark, M. J. Coe, R. Dorda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-02T14:52:05Z","title":"The supergiant B[e] star LHA 115-S 18 - binary and/or luminous blue variable?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0459","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d04ee56653f70a43e1b9f18172eca56016091ad95455d3dde1f57de828596d16","target":"record","created_at":"2026-05-18T01:50:13Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c5bb762448e3f3b4403945a231d1878e252d3e43c62b187605f36516feadd224","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-02T14:52:05Z","title_canon_sha256":"1fc6a1019e18003cd86755ad84174b865e114dc2031ce3651d75a66db5d5bcbb"},"schema_version":"1.0","source":{"id":"1305.0459","kind":"arxiv","version":1}},"canonical_sha256":"2bc4b2da307340723ad99e7a3d9e0db43de0dfc995c8d4606e434b7a1a7c7b44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2bc4b2da307340723ad99e7a3d9e0db43de0dfc995c8d4606e434b7a1a7c7b44","first_computed_at":"2026-05-18T01:50:13.152777Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:13.152777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dH2Zov94OScIhrmKDtvGinCWN6e0m+8QUziLaubGLT25Eh7F/L1BL4KKuC2/UAujd3NdAYLqBcGc5M+7WJn6Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:13.153271Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.0459","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d04ee56653f70a43e1b9f18172eca56016091ad95455d3dde1f57de828596d16","sha256:d7210ef2ffe7438137dd876abca73c849c0a85e102e82fe1f77b48e7a01aa6c3"],"state_sha256":"56f9735b0e74a3f2475222761dbde97304a8038439f39159642c5402383fd6dd"}