{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:2R5IK5EUGC3FEZVCVOOQVYO5KK","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":"71cbd5c6521d448406b930088a759bf66e1c887ab5bc44e2c4464bb58834720e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-12-04T13:47:38Z","title_canon_sha256":"e801be6d8c1894580e18968f4521334e0585400ac9e5cdfbf1d9a9548e119199"},"schema_version":"1.0","source":{"id":"astro-ph/9612038","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9612038","created_at":"2026-07-04T14:14:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9612038v1","created_at":"2026-07-04T14:14:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9612038","created_at":"2026-07-04T14:14:59Z"},{"alias_kind":"pith_short_12","alias_value":"2R5IK5EUGC3F","created_at":"2026-07-04T14:14:59Z"},{"alias_kind":"pith_short_16","alias_value":"2R5IK5EUGC3FEZVC","created_at":"2026-07-04T14:14:59Z"},{"alias_kind":"pith_short_8","alias_value":"2R5IK5EU","created_at":"2026-07-04T14:14:59Z"}],"graph_snapshots":[{"event_id":"sha256:7a2a0010eec17e83a71d233069603a4c482b49b5fd7ae3b7d67cead124acd308","target":"graph","created_at":"2026-07-04T14:14:59Z","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/astro-ph/9612038/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present and analyze a pointed ROSAT PSPC observation of the Seyfert galaxy NGC 4051. The X-ray spectrum consists of a powerlaw modified by absorption edges and an additional soft excess during the high-state in source flux. Modeling the spectrum in terms of warm absorption yields a large column density of the ionized material of log N_w = 22.7 and an ionization parameter of log U = 0.4. These properties are essentially constant throughout the observation, whereas the luminosity changes by more than a factor of 4. The underlying powerlaw is in its steepest observed state, with a photon index","authors_text":"D), Henner Fink (MPE Garching, Stefanie Komossa","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1996-12-04T13:47:38Z","title":"A ROSAT observation of the warm-absorbed soft X-ray spectrum of NGC 4051"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9612038","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:eba6dd380beca13b48edd6585058e8a745603c1528b4208eb5bdbb04d63c6a12","target":"record","created_at":"2026-07-04T14:14:59Z","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":"71cbd5c6521d448406b930088a759bf66e1c887ab5bc44e2c4464bb58834720e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-12-04T13:47:38Z","title_canon_sha256":"e801be6d8c1894580e18968f4521334e0585400ac9e5cdfbf1d9a9548e119199"},"schema_version":"1.0","source":{"id":"astro-ph/9612038","kind":"arxiv","version":1}},"canonical_sha256":"d47a85749430b65266a2ab9d0ae1dd52a7a4c1071de37e8259f274da714d17a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d47a85749430b65266a2ab9d0ae1dd52a7a4c1071de37e8259f274da714d17a6","first_computed_at":"2026-07-04T14:14:59.164514Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:14:59.164514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xyQYRgfpI1apfd9FYZkWWfQ6glMudg72/n9mPFXCMpa3O/WEIS2SW0vqLmR8D/klGUCcmg1scNG7CRqp6S2uCg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:14:59.164908Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9612038","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eba6dd380beca13b48edd6585058e8a745603c1528b4208eb5bdbb04d63c6a12","sha256:7a2a0010eec17e83a71d233069603a4c482b49b5fd7ae3b7d67cead124acd308"],"state_sha256":"7945e0edb041f0e2fe9b8f0998f36ee92ba64169da606bdf27cfe2b8cba994a5"}