{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:E7F6UC42F52VCXOZPL7L7N2BXG","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":"dcecf2ba269b5a549afffcb01daab1ff607cdb3f19beba642e63be0dfde7ce82","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-13T11:42:43Z","title_canon_sha256":"9de8f9984e8f3610f786b855aa94213f30918755289427704c2e5210e21d7c13"},"schema_version":"1.0","source":{"id":"1311.3093","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.3093","created_at":"2026-05-18T01:46:31Z"},{"alias_kind":"arxiv_version","alias_value":"1311.3093v1","created_at":"2026-05-18T01:46:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.3093","created_at":"2026-05-18T01:46:31Z"},{"alias_kind":"pith_short_12","alias_value":"E7F6UC42F52V","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"E7F6UC42F52VCXOZ","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"E7F6UC42","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:0eea7100a502e709db2c78ae4b9ae27a2fa7936657698257f04f0fd0d4001e26","target":"graph","created_at":"2026-05-18T01:46:31Z","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 main goal of this work is to determine the properties of the optical counterpart to the INTEGRAL source IGR J21343+4738, and study its long-term optical variability. We present optical photometric BVRI and spectroscopic observations covering the wavelength band 4000-7500 A. We find that the optical counterpart to IGR J21343+4738 is a V=14.1 B1IVe shell star located at a distance of ~8.5 kpc. The Halpha line changed from an absorption dominated profile to an emission dominated profile, and then back again into absorption. In addition, fast V/R asymmetries were observed once the disc develop","authors_text":"A. Zezas (U. of Crete/FORTH), P. Reig (FORTH/U. of Crete)","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-13T11:42:43Z","title":"Disc-loss episode in the Be shell optical counterpart to the high-mass X-ray binary IGR J21343+4738"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.3093","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":"sha256:52c7beb73ebd8e74fcb14a628862eae235a69151f0fd1821d371ac4bc0dbed32","target":"record","created_at":"2026-05-18T01:46:31Z","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":"dcecf2ba269b5a549afffcb01daab1ff607cdb3f19beba642e63be0dfde7ce82","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-13T11:42:43Z","title_canon_sha256":"9de8f9984e8f3610f786b855aa94213f30918755289427704c2e5210e21d7c13"},"schema_version":"1.0","source":{"id":"1311.3093","kind":"arxiv","version":1}},"canonical_sha256":"27cbea0b9a2f75515dd97afebfb741b9a0f71ac9da959a2c8a323c9e65c510eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27cbea0b9a2f75515dd97afebfb741b9a0f71ac9da959a2c8a323c9e65c510eb","first_computed_at":"2026-05-18T01:46:31.614595Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:31.614595Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3h3RDOJ0E8c4F/mMhJYdCs4DXmTBgVWx2XnS3gAJp13O4YWN8LjXH6BR2H2ddzkvcxa/rUjbIg9mTg3EYqEnCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:31.614987Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.3093","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52c7beb73ebd8e74fcb14a628862eae235a69151f0fd1821d371ac4bc0dbed32","sha256:0eea7100a502e709db2c78ae4b9ae27a2fa7936657698257f04f0fd0d4001e26"],"state_sha256":"ef29a06c48023d93d80d85359c15e25128d6c193ee6e94171141815487309d86"}