{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JXWYUDRZOMS3N4Z5TF6R5ATIIO","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":"ea7cbca45be10c6116bf8e11adea2de76059ca90dc227036f58fee85b88eda33","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-19T22:51:13Z","title_canon_sha256":"4e3a83dec89923291102cf52b5a42945412eedbcb66d2dc173c3293987d7f458"},"schema_version":"1.0","source":{"id":"1104.3897","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3897","created_at":"2026-05-18T02:02:22Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3897v1","created_at":"2026-05-18T02:02:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3897","created_at":"2026-05-18T02:02:22Z"},{"alias_kind":"pith_short_12","alias_value":"JXWYUDRZOMS3","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JXWYUDRZOMS3N4Z5","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JXWYUDRZ","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:28bbeb0ddf1ecfdf2b48d9522fa0e374afe52a2a4d1f2f9780db0d0a633c8a9c","target":"graph","created_at":"2026-05-18T02:02:22Z","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 present a search for outlying HII regions in the extended gaseous outskirts of nearby (D < 40 Mpc) galaxies, and subsequent multi-slit spectroscopy used to obtain the HII region nebular oxygen abundances. The galaxies in our sample have extended HI disks and/or interaction-related HI features that extend well beyond their primary stellar components. We report oxygen abundance gradients out to 2.5 times the optical radius for these galaxies which span a range of morphologies and masses. We analyze the underlying stellar and neutral HI gas distributions in the vicinity of the HII regions to u","authors_text":"Gerhardt Meurer, Jessica Werk, Mary Putman, Nitza Santiago-Figueroa","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-19T22:51:13Z","title":"Metal Transport to the Gaseous Outskirts of Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3897","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":"sha256:7b778056d7c31cbdbf2fa39b913af8324be29dc14e9426210b09fa81e61e53ff","target":"record","created_at":"2026-05-18T02:02:22Z","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":"ea7cbca45be10c6116bf8e11adea2de76059ca90dc227036f58fee85b88eda33","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-19T22:51:13Z","title_canon_sha256":"4e3a83dec89923291102cf52b5a42945412eedbcb66d2dc173c3293987d7f458"},"schema_version":"1.0","source":{"id":"1104.3897","kind":"arxiv","version":1}},"canonical_sha256":"4ded8a0e397325b6f33d997d1e826843995828b05690d6563a039dd95cfef3a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ded8a0e397325b6f33d997d1e826843995828b05690d6563a039dd95cfef3a2","first_computed_at":"2026-05-18T02:02:22.343069Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:22.343069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iTMWeMGOJB6JOs0+mwJsNxmTNSh2ilKOVDzA/rhP3AKXTK5WbXo4S11UJaf8XX/+yQeBTlwSzWPqelZHGjSXDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:22.343841Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.3897","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b778056d7c31cbdbf2fa39b913af8324be29dc14e9426210b09fa81e61e53ff","sha256:28bbeb0ddf1ecfdf2b48d9522fa0e374afe52a2a4d1f2f9780db0d0a633c8a9c"],"state_sha256":"157ba1136fcad1a15599e48783d51b8a4cec0e92be9aa67c36ae86a686ff3a20"}