{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6NFJCAM2QTVC33MKIIIT3STHYQ","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":"86bec1d7334ace813d31c6b0ffa2784c49f354856e2b5ef1c575ceb70a1c1f04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-29T20:02:52Z","title_canon_sha256":"0c1944a2eb7af2a1bc4a9916b95c0995c65d013120b69b169fe0d2a6539f645d"},"schema_version":"1.0","source":{"id":"1506.00007","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.00007","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"arxiv_version","alias_value":"1506.00007v1","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.00007","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"pith_short_12","alias_value":"6NFJCAM2QTVC","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6NFJCAM2QTVC33MK","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6NFJCAM2","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:8dcf2ff374853b9ec4dcea8b590767648eae2463e054d33a019c894557e13f1d","target":"graph","created_at":"2026-05-18T01:35:47Z","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 simultaneous Nuclear Spectroscopic Telescope Array (NuSTAR ) and Suzaku observations of the X-ray binary Cygnus X-1 in the hard state. This is the first time this state has been observed in Cyg X-1 with NuSTAR, which enables us to study the reflection and broad-band spectra in unprecedented detail. We confirm that the iron line cannot be fit with a combination of narrow lines and absorption features, and instead requires a relativistically blurred profile in combination with a narrow line and absorption from the companion wind. We use the reflection models of Garcia et al. (2014) to","authors_text":"A. C. Fabian, A. L. King, A. Lohfink, B. W. Grefenstette, C. J. Hailey, D. J. Walton, D. Stern, E. Kara, F. A. Harrison, F. E. Christensen, F. Fuerst, J. A. Tomsick, J. M. Miller, J. Wilms, K. Yamaoka, M. L. Parker, M. Nowak, P. Gandhi, S. E. Boggs, V. Grinberg, W. N. Alston, W. W. Craig, W. W. Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-29T20:02:52Z","title":"NuSTAR and Suzaku observations of the hard state in Cygnus X-1: locating the inner accretion disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.00007","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:b2f7c52c4b53dd9cd7ceb9386e8dac2ba9f9eec49f669930a8d71b0ae2b89091","target":"record","created_at":"2026-05-18T01:35:47Z","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":"86bec1d7334ace813d31c6b0ffa2784c49f354856e2b5ef1c575ceb70a1c1f04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-05-29T20:02:52Z","title_canon_sha256":"0c1944a2eb7af2a1bc4a9916b95c0995c65d013120b69b169fe0d2a6539f645d"},"schema_version":"1.0","source":{"id":"1506.00007","kind":"arxiv","version":1}},"canonical_sha256":"f34a91019a84ea2ded8a42113dca67c425d0dc0d67891613bb3b6cfa0ad5d2bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f34a91019a84ea2ded8a42113dca67c425d0dc0d67891613bb3b6cfa0ad5d2bd","first_computed_at":"2026-05-18T01:35:47.449597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:47.449597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QxTyWo0s2wLskFIpU7fboqWDnevmeKwOymtxd3xgUqZllpB1FWjs0gFDRcMDzLQBOEfXmZeLR7nqFkTjlyR+Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:47.450171Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.00007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2f7c52c4b53dd9cd7ceb9386e8dac2ba9f9eec49f669930a8d71b0ae2b89091","sha256:8dcf2ff374853b9ec4dcea8b590767648eae2463e054d33a019c894557e13f1d"],"state_sha256":"2195377c1c1c319ac51ac1ef31641a9750d4a1a45be8bef70ae2493e9d5d8dff"}