{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:ROKJTS3IJGZP2YMODV3L6HTLYE","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":"517ed3564ef9640eb9b62195707db26dffc60a25f3917ea6b81b030642ade3c5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2023-02-02T02:15:27Z","title_canon_sha256":"47c9c3ed4014f6e3c0914bd41e6ba059a022be388b2779739d3aef97aa2f04b8"},"schema_version":"1.0","source":{"id":"2302.00825","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.00825","created_at":"2026-07-05T05:38:12Z"},{"alias_kind":"arxiv_version","alias_value":"2302.00825v1","created_at":"2026-07-05T05:38:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.00825","created_at":"2026-07-05T05:38:12Z"},{"alias_kind":"pith_short_12","alias_value":"ROKJTS3IJGZP","created_at":"2026-07-05T05:38:12Z"},{"alias_kind":"pith_short_16","alias_value":"ROKJTS3IJGZP2YMO","created_at":"2026-07-05T05:38:12Z"},{"alias_kind":"pith_short_8","alias_value":"ROKJTS3I","created_at":"2026-07-05T05:38:12Z"}],"graph_snapshots":[{"event_id":"sha256:fd5d5beb5f9e0756dc5bb2f0178e96a493afc91cfa7944ce4afd516c4a427ab2","target":"graph","created_at":"2026-07-05T05:38:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2302.00825/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We review the chiral variant and invariant components of nucleon masses and its consequence on the chiral restoration in extreme conditions, neutron star matter in particular. We consider a model of linear realization of chiral symmetry with the nucleon parity doublet structure that permits the chiral invariant mass, $m_0$, for positive and negative parity nucleons. Nuclear matter is constructed with the parity doublet nucleon model coupled to scalar fields $\\sigma$, vector fields $(\\omega, \\rho)$, and to mesons with strangeness through the U(1)$_A$ anomaly. In models with large $m_0$, the nuc","authors_text":"Bikai Gao, Masayasu Harada, Takuya Minamikawa, Toru Kojo","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2023-02-02T02:15:27Z","title":"Chiral restoration of nucleons in neutron star matter: studies based on a parity doublet model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.00825","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:d97ac33368075a153d8ef2fb5c8ca614d5e55db227860caffd3ca7d39cf0e7ea","target":"record","created_at":"2026-07-05T05:38:12Z","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":"517ed3564ef9640eb9b62195707db26dffc60a25f3917ea6b81b030642ade3c5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2023-02-02T02:15:27Z","title_canon_sha256":"47c9c3ed4014f6e3c0914bd41e6ba059a022be388b2779739d3aef97aa2f04b8"},"schema_version":"1.0","source":{"id":"2302.00825","kind":"arxiv","version":1}},"canonical_sha256":"8b9499cb6849b2fd618e1d76bf1e6bc10afa1643b0f280664f9d5381f92c17c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b9499cb6849b2fd618e1d76bf1e6bc10afa1643b0f280664f9d5381f92c17c2","first_computed_at":"2026-07-05T05:38:12.771443Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:38:12.771443Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bWG3vX4PYq36IYJ17hVpCBaMXC6iLSY2RahsKoqjwectUecbGERxUJ+sbxnJgFrgCip0AFFSY4oVgeexPAyiAw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:38:12.771916Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.00825","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d97ac33368075a153d8ef2fb5c8ca614d5e55db227860caffd3ca7d39cf0e7ea","sha256:fd5d5beb5f9e0756dc5bb2f0178e96a493afc91cfa7944ce4afd516c4a427ab2"],"state_sha256":"ea9401a35036a2181b735fc4f771acff46277616d5f671e6b74432d4054f8cd8"}