{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2DTYMDUR2AGAQWTAR5TXWAEHED","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":"68ee25a59b3bf90d0a7bd5600c3f61618f056a675e8f2ca95349551b0dc73872","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-04T21:44:22Z","title_canon_sha256":"8fddd2eadf95edda1208d934a02a20f82b98178c4831ecd4217a4622b49f1fe9"},"schema_version":"1.0","source":{"id":"2407.04164","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.04164","created_at":"2026-07-05T08:41:05Z"},{"alias_kind":"arxiv_version","alias_value":"2407.04164v2","created_at":"2026-07-05T08:41:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.04164","created_at":"2026-07-05T08:41:05Z"},{"alias_kind":"pith_short_12","alias_value":"2DTYMDUR2AGA","created_at":"2026-07-05T08:41:05Z"},{"alias_kind":"pith_short_16","alias_value":"2DTYMDUR2AGAQWTA","created_at":"2026-07-05T08:41:05Z"},{"alias_kind":"pith_short_8","alias_value":"2DTYMDUR","created_at":"2026-07-05T08:41:05Z"}],"graph_snapshots":[{"event_id":"sha256:1be3c009824fc2b30f48613fb74fbd481a9229ec84ca47eab404f5603dccce58","target":"graph","created_at":"2026-07-05T08:41:05Z","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/2407.04164/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We observed the Seyfert 1 galaxy Mrk817 during an intensive multi-wavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in HST/COS spectra, both during the campaign and in other epochs extending over 14 years. We conclude that while the narrow absorption outflow system (at -3750 km/s with FWHM=177 km/s) responds to the variations of the UV continuum as modified by the X-ray obscurer, its total column density (logNH =19.5 cm-2) did not change across all epochs. The adjusted ionization parameter (scaled with respect to the varia","authors_text":"Aaron J. Barth, Alexei V. Filippenko, Andjelka B. Kovacevic, Benjamin D. Boizelle, Carina Fian, Christopher S. Kochanek, Collin Lewin, Daniele Rogantini, Daniel Proga, Doyee Byun, Dragana Ilic, Edward M. Cackett, Elena Dalla Bonta, Erin A. Kara, Ethan R. Partington, Fatima Zaidouni, Gary J. Ferland, Gerard A. Kriss, Gisella De Rosa, Gwen Walker, Hermine Landt, Jian-Min Wang, Jonathan Gelbord, Keith Horne, Kirk T. Korista, Luka C. Popovic, Marianne Vestergaard, Maryam Dehghanian, Matthew R. Siebert, Mayank Sharma, Michael D. Joner, Michael R. Goad, Michael S. Brotherton, Missagh Mehdipour, Misty C. Bentz, Nahum Arav, Peter Kosec, Shai Kaspi, Thaisa Storchi-Bergmann, Timothy Waters, Yasaman Homayouni, Ying Zu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-04T21:44:22Z","title":"AGN STORM 2: VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.04164","kind":"arxiv","version":2},"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":"sha256:592adf775651672cd7512dc185ad9acf0455801af2d5a40fd972b419d9ccc9f2","target":"record","created_at":"2026-07-05T08:41:05Z","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":"68ee25a59b3bf90d0a7bd5600c3f61618f056a675e8f2ca95349551b0dc73872","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-04T21:44:22Z","title_canon_sha256":"8fddd2eadf95edda1208d934a02a20f82b98178c4831ecd4217a4622b49f1fe9"},"schema_version":"1.0","source":{"id":"2407.04164","kind":"arxiv","version":2}},"canonical_sha256":"d0e7860e91d00c085a608f677b008720d0cde5dfa6883a4f2878d066eb80ed30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0e7860e91d00c085a608f677b008720d0cde5dfa6883a4f2878d066eb80ed30","first_computed_at":"2026-07-05T08:41:05.988425Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:41:05.988425Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Vk4S+bFKmxP87EYV7Idr2xpI7lTXVc6amx2gKH83FxiRUa2liFgQOcPj1Ps3yL5GmCuDVE15aidt2xevwFXyDA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:41:05.988888Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.04164","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:592adf775651672cd7512dc185ad9acf0455801af2d5a40fd972b419d9ccc9f2","sha256:1be3c009824fc2b30f48613fb74fbd481a9229ec84ca47eab404f5603dccce58"],"state_sha256":"3b4c4c7f0a11580934baf4abebb74b07ef5433bce67cb4a27360856423ad5f37"}