{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:P5LHN6KNZDVGDPYENVJXHTINTC","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":"9c4ba78917fcad40db4d516768157be5f0903a73a7ca6455efc67f49ca76b6e5","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-30T18:59:59Z","title_canon_sha256":"21e818e17664e4e2c373e9dad0f9f8002a32d573556da060a179927367cab766"},"schema_version":"1.0","source":{"id":"2211.17271","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.17271","created_at":"2026-07-05T05:39:26Z"},{"alias_kind":"arxiv_version","alias_value":"2211.17271v1","created_at":"2026-07-05T05:39:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.17271","created_at":"2026-07-05T05:39:26Z"},{"alias_kind":"pith_short_12","alias_value":"P5LHN6KNZDVG","created_at":"2026-07-05T05:39:26Z"},{"alias_kind":"pith_short_16","alias_value":"P5LHN6KNZDVGDPYE","created_at":"2026-07-05T05:39:26Z"},{"alias_kind":"pith_short_8","alias_value":"P5LHN6KN","created_at":"2026-07-05T05:39:26Z"}],"graph_snapshots":[{"event_id":"sha256:8f15b885ee2f561e3019c458b386143003fc984aeadf93be108731aae18e05e2","target":"graph","created_at":"2026-07-05T05:39:26Z","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/2211.17271/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The discovery over the last several decades of moderate luminosity AGNs in disk-dominated galaxies - which show no \"classical\" bulges - suggests that secular mechanisms represent an important growth pathway for supermassive black holes in these systems. We present new follow-up NuSTAR observations of the optically-elusive AGNs in two bulgeless galaxies, NGC 4178 and J0851+3926. NGC 4178 was originally reported as hosting an AGN based on the detection of [Ne V] mid-infrared emission detected by Spitzer, and based on Chandra X-ray imaging it has since been argued to host either a heavily obscure","authors_text":"Claudio Ricci, Gabriela Canalizo, Mario Gliozzi, Michael A. Reefe, Nathan J. Secrest, Ryan W. Pfeifle, Shobita Satyapal, Thomas Bohn","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-30T18:59:59Z","title":"NuSTAR Observes Two Bulgeless Galaxies: No Hard X-ray AGN Detected in NGC 4178 or J0851+3926"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.17271","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":"sha256:2dcf7951d239f92056d00d51ec2002957c8ccd5332b7a56cba7d6e75ed30c6f9","target":"record","created_at":"2026-07-05T05:39:26Z","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":"9c4ba78917fcad40db4d516768157be5f0903a73a7ca6455efc67f49ca76b6e5","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-11-30T18:59:59Z","title_canon_sha256":"21e818e17664e4e2c373e9dad0f9f8002a32d573556da060a179927367cab766"},"schema_version":"1.0","source":{"id":"2211.17271","kind":"arxiv","version":1}},"canonical_sha256":"7f5676f94dc8ea61bf046d5373cd0d98bcceed9c79af5c219b0ae32d92815c9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f5676f94dc8ea61bf046d5373cd0d98bcceed9c79af5c219b0ae32d92815c9c","first_computed_at":"2026-07-05T05:39:26.556510Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:39:26.556510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"phNLKFWB9JlR0JRYRZ4OutpYNsunzV9VHabwgQchC71JOHgNcmho0jZyF6ccMmq16rVvZuqL39fW2tjHB89oCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:39:26.556900Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.17271","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2dcf7951d239f92056d00d51ec2002957c8ccd5332b7a56cba7d6e75ed30c6f9","sha256:8f15b885ee2f561e3019c458b386143003fc984aeadf93be108731aae18e05e2"],"state_sha256":"f0a235a6f22452b70a30dae0026b70cd47934970c9225b5ad0eebefa951ebb30"}