{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:SLSAIOFX46VXA2CVHO2YX7NYVT","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":"c687821f83491a5246cef092bf008533aab4c7866ad0e2b6d83720ac17ffdbdc","cross_cats_sorted":["astro-ph.HE","hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-07T17:52:32Z","title_canon_sha256":"9e7055a2dc6b9deefdb4732babe76bc71e0db7f7395739de0c11efa5d5186dc1"},"schema_version":"1.0","source":{"id":"2008.03291","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.03291","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"arxiv_version","alias_value":"2008.03291v1","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.03291","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_12","alias_value":"SLSAIOFX46VX","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_16","alias_value":"SLSAIOFX46VXA2CV","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_8","alias_value":"SLSAIOFX","created_at":"2026-07-05T01:48:51Z"}],"graph_snapshots":[{"event_id":"sha256:d46c7ae493fc1dee88c32c95172489a71e75bf7aad57a5d35e63b8adbd565684","target":"graph","created_at":"2026-07-05T01:48:51Z","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/2008.03291/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, Cheng et al. identified a number of massive white dwarfs (WD) that appear to have an additional heat source providing a luminosity near $\\approx 10^{-3}L_\\odot$ for multiple Gyr. In this paper we explore heating from electron capture and pycnonuclear reactions. We also explore heating from dark matter annihilation. WD stars appear to be too small to capture enough dark matter for this to be important. Finally, if dark matter condenses to very high densities inside a WD this could ignite nuclear reactions. We calculate the enhanced central density of a WD in the gravitational potentia","authors_text":"C. J. Horowitz","cross_cats":["astro-ph.HE","hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-07T17:52:32Z","title":"Nuclear and dark matter heating in massive white dwarf stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.03291","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":"sha256:2f4668bc6017946c3889e3fbe00bb4232133f9dbd269371285865f8f882de5f5","target":"record","created_at":"2026-07-05T01:48:51Z","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":"c687821f83491a5246cef092bf008533aab4c7866ad0e2b6d83720ac17ffdbdc","cross_cats_sorted":["astro-ph.HE","hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-07T17:52:32Z","title_canon_sha256":"9e7055a2dc6b9deefdb4732babe76bc71e0db7f7395739de0c11efa5d5186dc1"},"schema_version":"1.0","source":{"id":"2008.03291","kind":"arxiv","version":1}},"canonical_sha256":"92e40438b7e7ab7068553bb58bfdb8acef7c025f1f250cee26e96469ff9dcef2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92e40438b7e7ab7068553bb58bfdb8acef7c025f1f250cee26e96469ff9dcef2","first_computed_at":"2026-07-05T01:48:51.098038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:48:51.098038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0exqmvKmZ87xFcMkyaMxd4c/weIpJTkVkmBm4M2fz1cJIZZJytigBzEmEeA3TkHZ1Dsn8Pj04H5JYpKAyMXaDg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:48:51.098401Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.03291","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f4668bc6017946c3889e3fbe00bb4232133f9dbd269371285865f8f882de5f5","sha256:d46c7ae493fc1dee88c32c95172489a71e75bf7aad57a5d35e63b8adbd565684"],"state_sha256":"b4a607ac58b3feeb901511d93e0ef6504725ff013b28c2fbe63bd85d18c7ec2e"}