{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:V7LDQ5ZJZFQQMO23ZCJFNLXOVX","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":"ce1b66342917d21f2f1eb9a44d3bb3253a9a1f8f8e59bfbae2e967d568dd61ef","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-20T17:31:23Z","title_canon_sha256":"df688da32fecee3acaf7420675ecb6f0852b8ff3bf274332fa4596582468642c"},"schema_version":"1.0","source":{"id":"1311.5145","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.5145","created_at":"2026-05-18T01:46:12Z"},{"alias_kind":"arxiv_version","alias_value":"1311.5145v2","created_at":"2026-05-18T01:46:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.5145","created_at":"2026-05-18T01:46:12Z"},{"alias_kind":"pith_short_12","alias_value":"V7LDQ5ZJZFQQ","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"V7LDQ5ZJZFQQMO23","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"V7LDQ5ZJ","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:e94767ba6c15b1ec5ef840924b7e4ebcf1b36686c77409ac71a61de5855ab8fe","target":"graph","created_at":"2026-05-18T01:46:12Z","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 show that convection driven by chemical separation can significantly affect the cooling curves of accreting neutron stars after they go into quiescence. We calculate the thermal relaxation of the neutron star ocean and crust including the thermal and compositional fluxes due to convection. After the inward propagating cooling wave reaches the base of the neutron star ocean, the ocean begins to freeze, driving chemical separation. The resulting convection transports heat inward, giving much faster cooling of the surface layers than found assuming the ocean cools passively. The light curves i","authors_text":"Andrew Cumming, Zach Medin","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-20T17:31:23Z","title":"A signature of chemical separation in the cooling curves of transiently accreting neutron stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.5145","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":"sha256:953e6106dad8d976897095e5b52f8a615e3f53256a1de7709a744c62e82e7bba","target":"record","created_at":"2026-05-18T01:46:12Z","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":"ce1b66342917d21f2f1eb9a44d3bb3253a9a1f8f8e59bfbae2e967d568dd61ef","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-11-20T17:31:23Z","title_canon_sha256":"df688da32fecee3acaf7420675ecb6f0852b8ff3bf274332fa4596582468642c"},"schema_version":"1.0","source":{"id":"1311.5145","kind":"arxiv","version":2}},"canonical_sha256":"afd6387729c961063b5bc89256aeeeadfafb45e96a09b5be9f941573c59cf139","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"afd6387729c961063b5bc89256aeeeadfafb45e96a09b5be9f941573c59cf139","first_computed_at":"2026-05-18T01:46:12.051694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:12.051694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GOQu/grFb5NSI/54mp3V+jx8e7TjPRhFAd8Keq9CmNlX1dOPvbkhPCXlAsw2XdTM7Cgu2T9PzV+uv5UL4Hh+AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:12.052232Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.5145","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:953e6106dad8d976897095e5b52f8a615e3f53256a1de7709a744c62e82e7bba","sha256:e94767ba6c15b1ec5ef840924b7e4ebcf1b36686c77409ac71a61de5855ab8fe"],"state_sha256":"c2ea9d5fcfa1b923099c6573a9e1018eb902ac26bd4b294a70fa3145948cb36d"}