{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FBKV34CRTEY2RQEGEMO4JCDNGV","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":"015c948a85c1b55a3155218e72c9c5aff57932206f4f68546557f9d70f349a56","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-09-05T11:25:07Z","title_canon_sha256":"fc6c04b8f2e68f546a979b328e7c8c85d3f7d35beb8fa4abbec9cc7720a5f1dc"},"schema_version":"1.0","source":{"id":"2509.05015","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.05015","created_at":"2026-07-05T12:05:34Z"},{"alias_kind":"arxiv_version","alias_value":"2509.05015v1","created_at":"2026-07-05T12:05:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.05015","created_at":"2026-07-05T12:05:34Z"},{"alias_kind":"pith_short_12","alias_value":"FBKV34CRTEY2","created_at":"2026-07-05T12:05:34Z"},{"alias_kind":"pith_short_16","alias_value":"FBKV34CRTEY2RQEG","created_at":"2026-07-05T12:05:34Z"},{"alias_kind":"pith_short_8","alias_value":"FBKV34CR","created_at":"2026-07-05T12:05:34Z"}],"graph_snapshots":[{"event_id":"sha256:44ac00a95b397f8ac48b41ab715fab5500cec5c05503441c26be0df16ba61cd6","target":"graph","created_at":"2026-07-05T12:05:34Z","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/2509.05015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Post-asymptotic giant branch (post-AGB) stars are exquisite tracers of s-process nucleosynthesis via their surface abundances. We present a comprehensive analysis of J003643.94$-$723722.1 (J003643), a single SMC post-AGB star, using high-resolution UVES/VLT spectra analysed with E-iSpec. We find C/O = 16.21 and $[\\mathrm{s}/\\mathrm{Fe}]=2.09\\pm0.20 \\mathrm{dex}$. We also report the first direct Pb detection in a post-AGB star from the Pb II 5608.853 A line, with $[\\mathrm{Pb}/\\mathrm{Fe}]=3.18\\,\\mathrm{dex}$. Comparison with post-AGB samples in the Galaxy and Magellanic Clouds reveals that J00","authors_text":"Amanda Karakas, Anish M. Amarsi, Devika Kamath, Diego Vescovi, Hans Van Winckel, Maksym Mohorian, Meghna Menon, Paolo Ventura, Sergio Cristallo","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-09-05T11:25:07Z","title":"s-process Enriched Post-AGB Star J003643.94-723722.1 in the SMC with an Extreme C/O Ratio and the First Precise Detection of Lead"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.05015","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":"sha256:220c27119b7adc5087dff4dda648e6a1d3573da0123887deff5c95c2969ebdb4","target":"record","created_at":"2026-07-05T12:05:34Z","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":"015c948a85c1b55a3155218e72c9c5aff57932206f4f68546557f9d70f349a56","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-09-05T11:25:07Z","title_canon_sha256":"fc6c04b8f2e68f546a979b328e7c8c85d3f7d35beb8fa4abbec9cc7720a5f1dc"},"schema_version":"1.0","source":{"id":"2509.05015","kind":"arxiv","version":1}},"canonical_sha256":"28555df0519931a8c086231dc4886d354d0307c90b53481d580856c21173b671","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28555df0519931a8c086231dc4886d354d0307c90b53481d580856c21173b671","first_computed_at":"2026-07-05T12:05:34.466481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:05:34.466481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Zl+9hAP2rXSUbnn3Bncs7iakdZaf2+cAO/13x36XmS+xRXImHw6OoPZJEoefPKkFfUnH3hwPU0dDXRw47QIUDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:05:34.466887Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.05015","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:220c27119b7adc5087dff4dda648e6a1d3573da0123887deff5c95c2969ebdb4","sha256:44ac00a95b397f8ac48b41ab715fab5500cec5c05503441c26be0df16ba61cd6"],"state_sha256":"11d8b2203d3b5c592e92696e79f4c380e61d56c80d149ce79f1858c2fc664f44"}