{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:PSBN3YWOTKTSMJLWRULLT2UQ4M","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":"10c46644e031f71f08942ef82f9b239e1a0d21ed27cd701b3d29e6151c18b5cb","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-12T02:41:30Z","title_canon_sha256":"f63a46ac1eec5262c312ade862108749030139e62f3b0a06c415a4d3115aa950"},"schema_version":"1.0","source":{"id":"astro-ph/0107213","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0107213","created_at":"2026-07-04T16:23:41Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0107213v1","created_at":"2026-07-04T16:23:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0107213","created_at":"2026-07-04T16:23:41Z"},{"alias_kind":"pith_short_12","alias_value":"PSBN3YWOTKTS","created_at":"2026-07-04T16:23:41Z"},{"alias_kind":"pith_short_16","alias_value":"PSBN3YWOTKTSMJLW","created_at":"2026-07-04T16:23:41Z"},{"alias_kind":"pith_short_8","alias_value":"PSBN3YWO","created_at":"2026-07-04T16:23:41Z"}],"graph_snapshots":[{"event_id":"sha256:a7cce046ee5dc727463ad19e14e6f85376905078e631e39424dd8651595126d2","target":"graph","created_at":"2026-07-04T16:23:41Z","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/0107213/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that burning of a small mass fraction of carbon in a neutron star ocean is thermally unstable at low accumulated masses when the ocean contains heavy ashes from the hydrogen burning rapid proton (rp) process. The key to early unstable ignition is the low thermal conductivity of a heavy element ocean. The instability requires accretion rates in excess of one-tenth the Eddington limit when the carbon mass fraction is 0.1 or less. The unstable flashes release 10^{42} to 10^{43} ergs over hours to days, and are likely the cause of the recently discovered large Type I X-ray bursts (so-calle","authors_text":"Andrew Cumming, Lars Bildsten","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-07-12T02:41:30Z","title":"Carbon Flashes in the Heavy Element Ocean on Accreting Neutron Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0107213","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:a4e18b72f68de73395efe87478b66eaedd8ecd17822a77879bb9847beafbcf38","target":"record","created_at":"2026-07-04T16:23:41Z","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":"10c46644e031f71f08942ef82f9b239e1a0d21ed27cd701b3d29e6151c18b5cb","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-12T02:41:30Z","title_canon_sha256":"f63a46ac1eec5262c312ade862108749030139e62f3b0a06c415a4d3115aa950"},"schema_version":"1.0","source":{"id":"astro-ph/0107213","kind":"arxiv","version":1}},"canonical_sha256":"7c82dde2ce9aa72625768d16b9ea90e3294e0ac14d58afff1a480d70c1b269bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c82dde2ce9aa72625768d16b9ea90e3294e0ac14d58afff1a480d70c1b269bc","first_computed_at":"2026-07-04T16:23:41.729136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:23:41.729136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3zYqupeLU7UZTbSEFRiIb6NgrwvEgb9QBwUjaoloFbz3ovxt7goOCsCW5fRGozqiZUrIP1q0y0Dv66O0B5BYCw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:23:41.729916Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0107213","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4e18b72f68de73395efe87478b66eaedd8ecd17822a77879bb9847beafbcf38","sha256:a7cce046ee5dc727463ad19e14e6f85376905078e631e39424dd8651595126d2"],"state_sha256":"873b31577de672e3f45365e2b8ea0d92faf1eccfc45a4012102e21904fa71694"}