{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:TNNBM4BPLAKAWJRMLXTNYNWOE5","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":"8742f42a2ebb4e20caddb61e4b00621e9a7b5625f9c153ea238736fb5bd59011","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-11-19T19:00:01Z","title_canon_sha256":"a8a2235af13bbe745928da6ba3890179095cf0da16112d15113479b83cf72fde"},"schema_version":"1.0","source":{"id":"2411.12803","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.12803","created_at":"2026-07-05T09:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"2411.12803v1","created_at":"2026-07-05T09:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.12803","created_at":"2026-07-05T09:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"TNNBM4BPLAKA","created_at":"2026-07-05T09:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"TNNBM4BPLAKAWJRM","created_at":"2026-07-05T09:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"TNNBM4BP","created_at":"2026-07-05T09:38:00Z"}],"graph_snapshots":[{"event_id":"sha256:9833ea3038003d1cb1b1a9f924705d437bcd04e059c4a57aed08ee7df1c1617e","target":"graph","created_at":"2026-07-05T09:38:00Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2411.12803/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the spectro-temporal study of the neutron star low mass X-ray binary Cygnus X-2 using NICER and NuSTAR data while the source was in the normal branch (NB). We detect a normal branch oscillation (NBO) feature at ~ 5.41 Hz that appears in the middle portion of the NB branch. We note that the NBO appeared only in the 0.5-3 keV energy range, with maximum strength in the 1-2 keV energy band, but was absent in the 3-10 keV energy band of NuSTAR and NICER data. The energy spectrum of the source exhibits an emission feature at ~ 1 keV, previously identified as the Fe L transition in the oute","authors_text":"Diego Altamirano, Edward M. Cackett, Jeremy Hare, Malu Sudha, Renee M. Ludlam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-11-19T19:00:01Z","title":"A spectro-temporal view of normal branch oscillations in Cygnus X-2 as seen by NICER and NuSTAR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.12803","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":"sha256:700136da15d0169061e736c117d17146586045b95400903a4bb63d7b5643a9de","target":"record","created_at":"2026-07-05T09:38:00Z","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":"8742f42a2ebb4e20caddb61e4b00621e9a7b5625f9c153ea238736fb5bd59011","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-11-19T19:00:01Z","title_canon_sha256":"a8a2235af13bbe745928da6ba3890179095cf0da16112d15113479b83cf72fde"},"schema_version":"1.0","source":{"id":"2411.12803","kind":"arxiv","version":1}},"canonical_sha256":"9b5a16702f58140b262c5de6dc36ce27748bfa0430ad958fb6a9830f2986810f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b5a16702f58140b262c5de6dc36ce27748bfa0430ad958fb6a9830f2986810f","first_computed_at":"2026-07-05T09:38:00.614946Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:38:00.614946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QFOzDBIBJ4Aww3XY/vtQYOe0W1e+W1JJpylR0HFh0fye2vE/Nb7VQbt9E+1Rj+26VAgpKGTkcbm1B8XbARcpBw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:38:00.615492Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.12803","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:700136da15d0169061e736c117d17146586045b95400903a4bb63d7b5643a9de","sha256:9833ea3038003d1cb1b1a9f924705d437bcd04e059c4a57aed08ee7df1c1617e"],"state_sha256":"960adaa3a3aff671e89660003432a8f2603e1a6ad5e45e2bc4f7b8267b00734a"}