{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2HMROCERGRAVUHZG5L5PCKYIFC","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":"2d491d87e3ca65b53b42d77762b5282c52f9c88fd165149b589a4aacfc1020a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-30T06:38:00Z","title_canon_sha256":"5fb09b894900660f67bac6bf7fca769b87e446237acfd3a7d9335757c3adee92"},"schema_version":"1.0","source":{"id":"1401.7752","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.7752","created_at":"2026-05-18T01:44:54Z"},{"alias_kind":"arxiv_version","alias_value":"1401.7752v1","created_at":"2026-05-18T01:44:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.7752","created_at":"2026-05-18T01:44:54Z"},{"alias_kind":"pith_short_12","alias_value":"2HMROCERGRAV","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2HMROCERGRAVUHZG","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2HMROCER","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:0f4888d1f172c56055d79b4e9954e8ff35cab7ff7f8d21ba7ae70b5e14216d61","target":"graph","created_at":"2026-05-18T01:44:54Z","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":"The vital importance of composition-dependent low-temperature opacity in low-mass (M < 3Msun) asymptotic giant branch (AGB) stellar models of metallicity Z > 0.001 has recently been demonstrated (e.g. Marigo 2002; Ventura & Marigo 2010). Its significance to more metal-poor, intermediate mass (M > 2.5Msun) models has yet to be investigated. We show that its inclusion in lower-metallicity models ([Fe/H] < -2) is essential, and that there exists no threshold metallicity below which composition-dependent molecular opacity may be neglected. We find it to be crucial in all intermediate-mass models i","authors_text":"John Lattanzio, Pilar Gil-Pons, Simon Campbell, Thomas Constantino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-30T06:38:00Z","title":"On the necessity of composition-dependent low-temperature opacity in metal-poor AGB stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7752","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":"sha256:708853d0148f15ee5cb7959b4ba2e4b072641196e3dc4ba568396bb439060636","target":"record","created_at":"2026-05-18T01:44:54Z","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":"2d491d87e3ca65b53b42d77762b5282c52f9c88fd165149b589a4aacfc1020a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-30T06:38:00Z","title_canon_sha256":"5fb09b894900660f67bac6bf7fca769b87e446237acfd3a7d9335757c3adee92"},"schema_version":"1.0","source":{"id":"1401.7752","kind":"arxiv","version":1}},"canonical_sha256":"d1d917089134415a1f26eafaf12b0828aac574a08447cd48ea56dd43b44a98cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1d917089134415a1f26eafaf12b0828aac574a08447cd48ea56dd43b44a98cd","first_computed_at":"2026-05-18T01:44:54.617601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:54.617601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p8UKdMY5t/LJdBGB530QAI1CNqABn4HyLWWB4kqUN0RZX1yluU+edAZIEi9Zt0N1lI7POdDF5ddWkd1DitQ5Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:54.618262Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.7752","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:708853d0148f15ee5cb7959b4ba2e4b072641196e3dc4ba568396bb439060636","sha256:0f4888d1f172c56055d79b4e9954e8ff35cab7ff7f8d21ba7ae70b5e14216d61"],"state_sha256":"69c71a7d9ad4dd8e4c3d3dc162cbebb3f94eb38f3468e963309c0ea3fb5717f6"}