{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PZXLFIHYYCX3HW24K4WEDAABYF","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":"2fab41ee4b0442e9dc9b1a70786fd8c404c941c01920dd931118ae3dc496650f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-09-09T00:04:54Z","title_canon_sha256":"aff7e55c631dae436a0c9217c9bdf4093e95fc9590176f62e9a9a0d49c091374"},"schema_version":"1.0","source":{"id":"1109.1861","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1861","created_at":"2026-05-18T02:00:37Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1861v1","created_at":"2026-05-18T02:00:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1861","created_at":"2026-05-18T02:00:37Z"},{"alias_kind":"pith_short_12","alias_value":"PZXLFIHYYCX3","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PZXLFIHYYCX3HW24","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PZXLFIHY","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:605d7899aea66f9a5cf12a7d2d5c00fa4ba1fe8ba8a24e70c5393c225237c980","target":"graph","created_at":"2026-05-18T02:00:37Z","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":"We derive the chlorine abundances in a sample of nearby planetary nebulae (PNe) and H II regions that have some of the best available spectra. We use a nearly homogeneous procedure to derive the abundance in each object and find that the Cl/H abundance ratio shows similar values in H II regions and PNe. This supports our previous interpretation that the underabundance we found for oxygen in the H II regions is due to the depletion of their oxygen atoms into organic refractory dust components. For other elements, the bias introduced by ionization correction factors in their derived abundances c","authors_text":"Gloria Delgado-Inglada, M\\'onica Rodr\\'iguez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-09-09T00:04:54Z","title":"Chlorine and Sulfur in Nearby Planetary Nebulae and H II Regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1861","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:a626633e0b8e54591949167101feabd2f9f4dcc34fe11d0d02d03b603a8d2695","target":"record","created_at":"2026-05-18T02:00:37Z","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":"2fab41ee4b0442e9dc9b1a70786fd8c404c941c01920dd931118ae3dc496650f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-09-09T00:04:54Z","title_canon_sha256":"aff7e55c631dae436a0c9217c9bdf4093e95fc9590176f62e9a9a0d49c091374"},"schema_version":"1.0","source":{"id":"1109.1861","kind":"arxiv","version":1}},"canonical_sha256":"7e6eb2a0f8c0afb3db5c572c418001c15a0e79822f3a8f9c4b9604452255cf5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e6eb2a0f8c0afb3db5c572c418001c15a0e79822f3a8f9c4b9604452255cf5e","first_computed_at":"2026-05-18T02:00:37.556688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:37.556688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CA5A+yfdvRGAKAcbmou5+ltkYN2prvBQrG+unSvBb10t0Cz+XoNEgxbD/p99++NnTVtgUo7UdFSxJiYDj1CXDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:37.557275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.1861","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a626633e0b8e54591949167101feabd2f9f4dcc34fe11d0d02d03b603a8d2695","sha256:605d7899aea66f9a5cf12a7d2d5c00fa4ba1fe8ba8a24e70c5393c225237c980"],"state_sha256":"6472f13f0f3b6262b396cb9414c5d2c73fb2489af11d1d22373d315a285e90b8"}