{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:ZAYJ7PZGTSXERXT7BAUMXCEAI3","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":"dc6419a37f8b1545f7cefab6ba5a7b83a4fcd851f710b21a7493d5eb231e76bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-07-18T23:17:00Z","title_canon_sha256":"42895aa90ff18d5c48a6cac2aa9343738d26451003c1e2d53c209aecf4a932c6"},"schema_version":"1.0","source":{"id":"0907.3248","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.3248","created_at":"2026-05-18T02:12:55Z"},{"alias_kind":"arxiv_version","alias_value":"0907.3248v2","created_at":"2026-05-18T02:12:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.3248","created_at":"2026-05-18T02:12:55Z"},{"alias_kind":"pith_short_12","alias_value":"ZAYJ7PZGTSXE","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"ZAYJ7PZGTSXERXT7","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"ZAYJ7PZG","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:880a6fbe7fc6bb23e1b55e56cd1e35d1417d801fa121d4cf502c3749a9bb7f69","target":"graph","created_at":"2026-05-18T02:12:55Z","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 introduce a new tool - AESOPUS: Accurate Equation of State and OPacity Utility Software - for computing the equation of state and the Rosseland mean (RM) opacities of matter in the ideal gas phase. Results are given as a function of one pair of state variables, (i.e. temperature T in the range 3.2 <= log(T) <= 4.5, and parameter R= rho/(T/10^6 K)^3 in the range -8 <= log(R) <= 1), and arbitrary chemical mixture. The chemistry is presently solved for about 800 species, consisting of almost 300 atomic and 500 molecular species. The gas opacities account for many continuum and discrete sources","authors_text":"(2) INAF Astronomical Observatory of Padova, 3) ((1) Department of Astronomy, (3) Department of Astronomy, Austria), Bernhard Aringer (2, Italy, Paola Marigo (1), University of Padova, University of Wien","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-07-18T23:17:00Z","title":"Low-temperature gas opacity - AESOPUS: a versatile and quick computational tool"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.3248","kind":"arxiv","version":2},"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":"sha256:87072698ff8674d822c74da0d8b04226013c9450631a7cf8c89f730127c31f39","target":"record","created_at":"2026-05-18T02:12:55Z","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":"dc6419a37f8b1545f7cefab6ba5a7b83a4fcd851f710b21a7493d5eb231e76bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-07-18T23:17:00Z","title_canon_sha256":"42895aa90ff18d5c48a6cac2aa9343738d26451003c1e2d53c209aecf4a932c6"},"schema_version":"1.0","source":{"id":"0907.3248","kind":"arxiv","version":2}},"canonical_sha256":"c8309fbf269cae48de7f0828cb888046ef08af487255961e981fad9b21e77650","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c8309fbf269cae48de7f0828cb888046ef08af487255961e981fad9b21e77650","first_computed_at":"2026-05-18T02:12:55.820000Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:55.820000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AWzUuco5an6yASJhzuzqUekCZgKrm4uS0fPmoUhSsj2v78QW1/LXe1Ppn3CWGLk5wSMZHaeL9rckLYGX1sQrAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:55.820594Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.3248","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87072698ff8674d822c74da0d8b04226013c9450631a7cf8c89f730127c31f39","sha256:880a6fbe7fc6bb23e1b55e56cd1e35d1417d801fa121d4cf502c3749a9bb7f69"],"state_sha256":"c909a424c50d86e9ea0e3487acea58f4a7ff136c28553a35aa9ae00961f0c23d"}