{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:DML6DZ7IBMEOIPG3BHV574BQYL","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":"3a1ba4ecde769e045ff6087c6b999eca99e62e779cd8680c7daec21bc4a8da0a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-05-26T12:25:42Z","title_canon_sha256":"1ba79597d2c4e824a610ef279d503a230b5be042b9f3c6e73b3d7d9dd874dd21"},"schema_version":"1.0","source":{"id":"astro-ph/9905332","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9905332","created_at":"2026-07-04T16:11:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9905332v1","created_at":"2026-07-04T16:11:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9905332","created_at":"2026-07-04T16:11:15Z"},{"alias_kind":"pith_short_12","alias_value":"DML6DZ7IBMEO","created_at":"2026-07-04T16:11:15Z"},{"alias_kind":"pith_short_16","alias_value":"DML6DZ7IBMEOIPG3","created_at":"2026-07-04T16:11:15Z"},{"alias_kind":"pith_short_8","alias_value":"DML6DZ7I","created_at":"2026-07-04T16:11:15Z"}],"graph_snapshots":[{"event_id":"sha256:3f19202dff0bdd220d212b6a995dce1aa6d31a40b89125c46e4ab4ed12ea5fb1","target":"graph","created_at":"2026-07-04T16:11:15Z","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/astro-ph/9905332/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an exploration of the significance of Carbon/Oxygen phase separation in white dwarf stars in the context of self-consistent evolutionary calculations. Because phase separation can potentially increase the calculated ages of the oldest white dwarfs, it can affect the age of the Galactic disk as derived from the downturn in the white dwarf luminosity function. We find that the largest possible increase in ages due to phase separation is 1.5 Gyr, with a most likely value of approximately 0.6 Gyr, depending on the parameters of our white dwarf models.\n  The most important factors influe","authors_text":"D. E. Winget, E. W. Klumpe, M. A. Wood, M. H. Montgomery","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-05-26T12:25:42Z","title":"Evolutionary calculations of phase separation in crystallizing white dwarf stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9905332","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:a44a9c7940ddd9f2c69ee69c3b441e7d29abc3d68ecefdf06ba1699b6711ffa8","target":"record","created_at":"2026-07-04T16:11:15Z","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":"3a1ba4ecde769e045ff6087c6b999eca99e62e779cd8680c7daec21bc4a8da0a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-05-26T12:25:42Z","title_canon_sha256":"1ba79597d2c4e824a610ef279d503a230b5be042b9f3c6e73b3d7d9dd874dd21"},"schema_version":"1.0","source":{"id":"astro-ph/9905332","kind":"arxiv","version":1}},"canonical_sha256":"1b17e1e7e80b08e43cdb09ebdff030c2c0a20edaf6dd7b72f98c460c5ce537a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b17e1e7e80b08e43cdb09ebdff030c2c0a20edaf6dd7b72f98c460c5ce537a4","first_computed_at":"2026-07-04T16:11:15.343890Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:11:15.343890Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"21qdvyF/WQNxQmfSWXzIq+kGVL44fGJRufVsfSWWYwezPio4Ft7B5UtdIqB7UzubKWLQR1Qgcf8zDWuGu1+1DQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:11:15.344257Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9905332","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a44a9c7940ddd9f2c69ee69c3b441e7d29abc3d68ecefdf06ba1699b6711ffa8","sha256:3f19202dff0bdd220d212b6a995dce1aa6d31a40b89125c46e4ab4ed12ea5fb1"],"state_sha256":"0cb601181c51d60bda043d608bc74d118db45c0d168373cb382d8925040cbd47"}