{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:Z4DR5RVH3HWVOO3YQAQC5SP67X","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":"c22655a26f319ea249f0d79285c6d1be31333227c8484ce3c2fb4bcdda653b2e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-08-02T15:34:10Z","title_canon_sha256":"1f02dfb919adf85f64449bd123fdf4fee15f99bb8259b39b6f39b17bcdc4af5d"},"schema_version":"1.0","source":{"id":"2108.00983","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.00983","created_at":"2026-07-05T03:06:34Z"},{"alias_kind":"arxiv_version","alias_value":"2108.00983v1","created_at":"2026-07-05T03:06:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.00983","created_at":"2026-07-05T03:06:34Z"},{"alias_kind":"pith_short_12","alias_value":"Z4DR5RVH3HWV","created_at":"2026-07-05T03:06:34Z"},{"alias_kind":"pith_short_16","alias_value":"Z4DR5RVH3HWVOO3Y","created_at":"2026-07-05T03:06:34Z"},{"alias_kind":"pith_short_8","alias_value":"Z4DR5RVH","created_at":"2026-07-05T03:06:34Z"}],"graph_snapshots":[{"event_id":"sha256:0f1d284ec1fe9454efd70468d247833ed779822ee7bf621c2d7384bf4cb8b33f","target":"graph","created_at":"2026-07-05T03:06:34Z","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/2108.00983/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The quasar Main Sequence (MS) appears to be an incredibly powerful tool to organize the diversity in large samples of type-1 quasars but the most important physical parameters governing it are still unclear. Here we investigate the origin of the broadening and of a defining feature of Population B sources: a strong redward asymmetry of the Balmer emission lines. We focus on a prototypical source, Fairall 9. Spectropolarimetric data of the Fairall 9 broad H$\\beta$ and H$\\alpha$ profiles allowed for a view of the geometric and dynamical complexity of the line emitting regions. Measurements (1) p","authors_text":"Ascensi\\'on del Olmo, Bo-Wei Jiang, Bo\\.zena Czerny, {\\DJ}or{\\dj}e Savi\\'c, Elena Shablovinskaya, Jian-Min Wang, Luka \\v{C}. Popovi\\'c, Marzena \\'Sniegowska, Mauro D'Onofrio, Paola Marziani, Paola Mazzei, Swayamtrupta Panda, Victor L. Afanasiev","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-08-02T15:34:10Z","title":"Linear Spectropolarimetric Analysis of Fairall 9 with VLT/FORS2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.00983","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":"sha256:90b29c9d22fac0acf302f315a7f0f914ec1da69ca955edfd34e7cd8df26bb355","target":"record","created_at":"2026-07-05T03:06:34Z","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":"c22655a26f319ea249f0d79285c6d1be31333227c8484ce3c2fb4bcdda653b2e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-08-02T15:34:10Z","title_canon_sha256":"1f02dfb919adf85f64449bd123fdf4fee15f99bb8259b39b6f39b17bcdc4af5d"},"schema_version":"1.0","source":{"id":"2108.00983","kind":"arxiv","version":1}},"canonical_sha256":"cf071ec6a7d9ed573b7880202ec9fefdfb23c6a3c035c42124d333cc05b0fa00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf071ec6a7d9ed573b7880202ec9fefdfb23c6a3c035c42124d333cc05b0fa00","first_computed_at":"2026-07-05T03:06:34.417476Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:06:34.417476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5o8C23qHoo1svJ+FPg+/sGFwmF1Pj6vmcFk6fmkW88IbcrCiTPFlovAhXDp/MQjU/OgQgLCdtEQyjpIJxTOnCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:06:34.417873Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.00983","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90b29c9d22fac0acf302f315a7f0f914ec1da69ca955edfd34e7cd8df26bb355","sha256:0f1d284ec1fe9454efd70468d247833ed779822ee7bf621c2d7384bf4cb8b33f"],"state_sha256":"4c99b89d99da511f83498d788e0cc4323bf6eb1d8dd9fe839467ae858d077649"}