{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6D4NAML5HY7GAQMIYST3EXCLAT","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":"fa22aea527d542f2bb0e7148cfd18e9936b3414cdbc3e7c29243c9fa08fd2f5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-20T11:49:55Z","title_canon_sha256":"1fa3b85c53ec45865fdd3a6c2b552c6e2a3862290ac46fe99a4927da826bc625"},"schema_version":"1.0","source":{"id":"1711.07263","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.07263","created_at":"2026-05-18T00:12:24Z"},{"alias_kind":"arxiv_version","alias_value":"1711.07263v2","created_at":"2026-05-18T00:12:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.07263","created_at":"2026-05-18T00:12:24Z"},{"alias_kind":"pith_short_12","alias_value":"6D4NAML5HY7G","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6D4NAML5HY7GAQMI","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6D4NAML5","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:9ec37fcc125924d0cbacada4b2a2f9562ba6f28dcbdbe76518d74db28109bb22","target":"graph","created_at":"2026-05-18T00:12:24Z","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":"We present NuSTAR observations of the luminous neutron star low-mass X-ray binary (NS LMXB) and Z source GX 5-1. During our three observations made with separations of roughly two days, the source traced out an almost complete Z track. We extract spectra from the various branches and fit them with a continuum model that has been successfully applied to other Z sources. Surprisingly, and unlike most of the (luminous) NS-LMXBs observed with NuSTAR, we do not find evidence for reflection features in any of the spectra of GX 5-1. We discuss several possible explanations for the absence of reflecti","authors_text":"Dacheng Lin, James F. Steiner, Jeroen Homan, Joel K. Fridriksson, Jon M. Miller, Renee M. Ludlam, Ronald A. Remillard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-20T11:49:55Z","title":"Absence of reflection features in NuSTAR spectra of the luminous neutron star X-ray binary GX 5-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.07263","kind":"arxiv","version":2},"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:f9e6bbbe25eb149bfa8ed9b2a8102a583fa767795d0a18be0373fb2201c94301","target":"record","created_at":"2026-05-18T00:12:24Z","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":"fa22aea527d542f2bb0e7148cfd18e9936b3414cdbc3e7c29243c9fa08fd2f5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-20T11:49:55Z","title_canon_sha256":"1fa3b85c53ec45865fdd3a6c2b552c6e2a3862290ac46fe99a4927da826bc625"},"schema_version":"1.0","source":{"id":"1711.07263","kind":"arxiv","version":2}},"canonical_sha256":"f0f8d0317d3e3e604188c4a7b25c4b04cafdc0c8b35d747996a668edb5dbd226","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0f8d0317d3e3e604188c4a7b25c4b04cafdc0c8b35d747996a668edb5dbd226","first_computed_at":"2026-05-18T00:12:24.747368Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:24.747368Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4BCHyjH8PRViL5d9JLaQl/FfAFJlINSq/CDYXIfXOAqf5etqcgcFClbvE0KeYdRvb1QRyOLSOE4Qx9hpzPrcAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:24.747875Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.07263","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9e6bbbe25eb149bfa8ed9b2a8102a583fa767795d0a18be0373fb2201c94301","sha256:9ec37fcc125924d0cbacada4b2a2f9562ba6f28dcbdbe76518d74db28109bb22"],"state_sha256":"df298aace65f8076c2a3fe9cdbff57abcbcee95a152061eec465f79ad0438fdc"}