{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:P2PQGBHLCEUCXTZTREWPKFXBGH","short_pith_number":"pith:P2PQGBHL","schema_version":"1.0","canonical_sha256":"7e9f0304eb11282bcf33892cf516e131d8930da9b546c25d84ee13b3f05af4ce","source":{"kind":"arxiv","id":"1901.08959","version":1},"attestation_state":"computed","paper":{"title":"Opacity calculations for stellar astrophysics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Franck Gilleron, Jean-Christophe Pain","submitted_at":"2019-01-24T16:56:25Z","abstract_excerpt":"Opacity is a key ingredient of stellar structure and evolution. In the present work, we recall the role of opacity in asteroseismology, focusing mainly on two kinds of astrophysical objects: $\\beta$ Cephei-type stars, and the Sun. The detailed opacity code SCO-RCG for local-thermodynamic-equilibrium plasmas is described and interpretation of laser and Z-pinch experiments are presented and discussed. The possible role of multi-photon processes on radiative accelerations is outlined, and the main aspects of opacity modeling which should be improved are mentioned."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1901.08959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-24T16:56:25Z","cross_cats_sorted":[],"title_canon_sha256":"dc2ac2587c09c92932933fcd1ca6bae7ba0a5097b715f82ae0005dbcd0356f66","abstract_canon_sha256":"e588f571fab195ecf430b5314381b32e7752b01de23827361566f329e51e27c9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:39.455862Z","signature_b64":"6OibHrSt3hBeezxav1BUAVbsJnRyjorVxANS6Yk5bOhlzY/kxzk8SJlELe7fH/XwuHrYkPX917DRpwSzuv43Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e9f0304eb11282bcf33892cf516e131d8930da9b546c25d84ee13b3f05af4ce","last_reissued_at":"2026-05-17T23:47:39.455434Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:39.455434Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Opacity calculations for stellar astrophysics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Franck Gilleron, Jean-Christophe Pain","submitted_at":"2019-01-24T16:56:25Z","abstract_excerpt":"Opacity is a key ingredient of stellar structure and evolution. In the present work, we recall the role of opacity in asteroseismology, focusing mainly on two kinds of astrophysical objects: $\\beta$ Cephei-type stars, and the Sun. The detailed opacity code SCO-RCG for local-thermodynamic-equilibrium plasmas is described and interpretation of laser and Z-pinch experiments are presented and discussed. The possible role of multi-photon processes on radiative accelerations is outlined, and the main aspects of opacity modeling which should be improved are mentioned."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08959","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1901.08959","created_at":"2026-05-17T23:47:39.455491+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.08959v1","created_at":"2026-05-17T23:47:39.455491+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08959","created_at":"2026-05-17T23:47:39.455491+00:00"},{"alias_kind":"pith_short_12","alias_value":"P2PQGBHLCEUC","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"P2PQGBHLCEUCXTZT","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"P2PQGBHL","created_at":"2026-05-18T12:33:24.271573+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2105.01661","citing_title":"The chemical make-up of the Sun: A 2020 vision","ref_index":254,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH","json":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH.json","graph_json":"https://pith.science/api/pith-number/P2PQGBHLCEUCXTZTREWPKFXBGH/graph.json","events_json":"https://pith.science/api/pith-number/P2PQGBHLCEUCXTZTREWPKFXBGH/events.json","paper":"https://pith.science/paper/P2PQGBHL"},"agent_actions":{"view_html":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH","download_json":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH.json","view_paper":"https://pith.science/paper/P2PQGBHL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.08959&json=true","fetch_graph":"https://pith.science/api/pith-number/P2PQGBHLCEUCXTZTREWPKFXBGH/graph.json","fetch_events":"https://pith.science/api/pith-number/P2PQGBHLCEUCXTZTREWPKFXBGH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH/action/storage_attestation","attest_author":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH/action/author_attestation","sign_citation":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH/action/citation_signature","submit_replication":"https://pith.science/pith/P2PQGBHLCEUCXTZTREWPKFXBGH/action/replication_record"}},"created_at":"2026-05-17T23:47:39.455491+00:00","updated_at":"2026-05-17T23:47:39.455491+00:00"}