{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LDECI2SEN4RY7T5QVJBVVLDQNS","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":"c8bf3b8b1032d88df5077758423749bbc83ba7e28f9225d62b9d0e4c9cfeca35","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-14T05:21:25Z","title_canon_sha256":"d09b8e0970aea7f8b243c9e1587608eae6dd05c75c72261922eadcf5a7993e44"},"schema_version":"1.0","source":{"id":"1902.05225","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.05225","created_at":"2026-05-17T23:54:01Z"},{"alias_kind":"arxiv_version","alias_value":"1902.05225v1","created_at":"2026-05-17T23:54:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.05225","created_at":"2026-05-17T23:54:01Z"},{"alias_kind":"pith_short_12","alias_value":"LDECI2SEN4RY","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LDECI2SEN4RY7T5Q","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LDECI2SE","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:f8af3cec87083a1cedba8b8c2d3b628997e98e773cb6611518a0dc73013ce56f","target":"graph","created_at":"2026-05-17T23:54:01Z","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 typical accreting neutron star, Aquila X-1, was observed with Suzaku seven times in the decay phase of an outburst in 2007 September-October. Among them, the second to the fourth observations were performed 10 to 22 days after the outburst peak, when the source was in the hard state with a luminosity of 2x10^36 erg/sec. A unified spectral model for this type of objects approximately reproduced the 0.8--100~keV spectra obtained in these 3 observations. However, the spectra all exhibited an enigmatic hump-like excess around 30 keV, above the hard X-ray continuum which is interpreted as arisi","authors_text":"Kazuo Makishima, Megu Kubota, Mutsumi Sugizaki, Ono Ko, Toru Tamagawa, Toshio Nakano, Wataru Iwakiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-14T05:21:25Z","title":"An enigmatic hump around 30 keV in Suzaku spectra of Aquila X-1 in the Hard State"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05225","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":"sha256:7ed773860352e627bdd047a66768a2a5f2aac32f43862c1b27ae2d262f50fee2","target":"record","created_at":"2026-05-17T23:54:01Z","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":"c8bf3b8b1032d88df5077758423749bbc83ba7e28f9225d62b9d0e4c9cfeca35","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-02-14T05:21:25Z","title_canon_sha256":"d09b8e0970aea7f8b243c9e1587608eae6dd05c75c72261922eadcf5a7993e44"},"schema_version":"1.0","source":{"id":"1902.05225","kind":"arxiv","version":1}},"canonical_sha256":"58c8246a446f238fcfb0aa435aac706cb01ad1d2a154985985d378d41f84924e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58c8246a446f238fcfb0aa435aac706cb01ad1d2a154985985d378d41f84924e","first_computed_at":"2026-05-17T23:54:01.534167Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:01.534167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+x7hAvISINBproCazAR29kGIwaLqIb0g1tKwES2kToglvJe+rqOGKMDkywOImS5wyEaq3AL/qyCqQTmPkTQvAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:01.534840Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.05225","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ed773860352e627bdd047a66768a2a5f2aac32f43862c1b27ae2d262f50fee2","sha256:f8af3cec87083a1cedba8b8c2d3b628997e98e773cb6611518a0dc73013ce56f"],"state_sha256":"cc821a748a8a84809e713bfd4b46534fd4105708ca97676aeb702465e5ef763d"}