{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HTDIFIXDOL5UTBZRYXOT5KHCZY","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":"e5e9d3c73d7175b6cabf3d99fbc9a8c066eca5ff2b7cf1d36afce8b0964f2022","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-28T13:47:07Z","title_canon_sha256":"67981096c754eedee9d9be91c593237bbf8da0d1c55cb6991e28cb8da60768b6"},"schema_version":"1.0","source":{"id":"1402.7245","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.7245","created_at":"2026-05-18T01:44:21Z"},{"alias_kind":"arxiv_version","alias_value":"1402.7245v1","created_at":"2026-05-18T01:44:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.7245","created_at":"2026-05-18T01:44:21Z"},{"alias_kind":"pith_short_12","alias_value":"HTDIFIXDOL5U","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HTDIFIXDOL5UTBZR","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HTDIFIXD","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:bdc7e74d64baff1bda503a85c03377423bf39f103d5f031e89abac3a85843095","target":"graph","created_at":"2026-05-18T01:44:21Z","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 a broad band spectral analysis of the joint XMM-Newton and NuSTAR observational campaign of the Narrow Line Seyfert 1 SWIFT J2127.4+5654, consisting of 300 ks performed during three XMM-Newton orbits. We detect a relativistic broadened iron K$\\alpha$ line originating from the innermost regions of the accretion disc surrounding the central black hole, from which we infer an intermediate spin of $a$=$0.58^{+0.11}_{-0.17}$. The intrinsic spectrum is steep ($\\Gamma=2.08\\pm0.01$) as commonly found in Narrow Line Seyfert 1 galaxies, while the cutoff energy (E$_{\\rm c}=108^{+11}_{-10}$ keV","authors_text":"A. C. Fabian, A. Marinucci, C. J. Hailey, C. S. Reynolds, D. J. Walton, D. K. Stern, D. R. Ballantyne, E. Kara, F. A. Harrison, F. Bauer, F. E. Christensen, F. Fuerst, G. Matt, G. Miniutti, G. Risaliti, L. Brenneman, M. Balokovic, M. Cappi, M. Elvis, P. Arevalo, S. E. Boggs, W. W. Craig, W. Zhang","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-28T13:47:07Z","title":"Simultaneous NuSTAR and XMM-Newton 0.5-80 keV spectroscopy of the Narrow Line Seyfert 1 galaxy SWIFT J2127.4+5654"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.7245","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":"sha256:60708fc402029d81e21f7c41d92a06ac73be48429af916d2d4e397f67e7e4cfa","target":"record","created_at":"2026-05-18T01:44:21Z","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":"e5e9d3c73d7175b6cabf3d99fbc9a8c066eca5ff2b7cf1d36afce8b0964f2022","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-02-28T13:47:07Z","title_canon_sha256":"67981096c754eedee9d9be91c593237bbf8da0d1c55cb6991e28cb8da60768b6"},"schema_version":"1.0","source":{"id":"1402.7245","kind":"arxiv","version":1}},"canonical_sha256":"3cc682a2e372fb498731c5dd3ea8e2ce1e1ece62e29b14f2027807f4a4a49b6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cc682a2e372fb498731c5dd3ea8e2ce1e1ece62e29b14f2027807f4a4a49b6d","first_computed_at":"2026-05-18T01:44:21.818382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:21.818382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Pjc5k3M3W1GngCS2UbisQxTL8X6mOL+/HmHO7Pn2iZ1PjVxmE6XsDWAfwMWXbAP4FvxdVBRTlY8qyB0YvZafAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:21.819085Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.7245","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60708fc402029d81e21f7c41d92a06ac73be48429af916d2d4e397f67e7e4cfa","sha256:bdc7e74d64baff1bda503a85c03377423bf39f103d5f031e89abac3a85843095"],"state_sha256":"8c0954c803c75a2066b38ad30eb04016577437da58679c3d10fd2742a077bd46"}