{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PRQPCVLPEOHT7LIXZTT7EPOSO6","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":"545b1b9354978243010dbb4e7d98f90ee9bee769dc7f7e861e34e3beb23673a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-02-22T15:44:11Z","title_canon_sha256":"cd4b69c2ee41884f3b46e4ed4b4cd11f4f735bd69bc29aebf49022da49650569"},"schema_version":"1.0","source":{"id":"1802.08108","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.08108","created_at":"2026-05-18T00:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1802.08108v2","created_at":"2026-05-18T00:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.08108","created_at":"2026-05-18T00:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"PRQPCVLPEOHT","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PRQPCVLPEOHT7LIX","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PRQPCVLP","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:4a23f57693dc75c4e041157c5258da71bb8f5c7f5b5ba90d4c7b5374dc8545de","target":"graph","created_at":"2026-05-18T00:16:07Z","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":"Neutron drops confined in an external field are studied in the framework of relativistic Brueckner-Hartree-Fock theory using the bare nucleon-nucleon interaction. The ground state energies and radii of neutron drops with even numbers from $N = 4$ to $N=50$ are calculated and compared with results obtained from other nonrelativistic \\textit{ab initio} calculations and from relativistic density functional theory. Special attention has been paid to the magic numbers and to the sub-shell closures. The single-particle energies are investigated and the monopole effect of the tensor force on the evol","authors_text":"Haozhao Liang, Jie Meng, Peter Ring, Shihang Shen, Shuangquan Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-02-22T15:44:11Z","title":"Relativistic Brueckner-Hartree-Fock theory for neutron drops"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.08108","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":"sha256:6bf522963787954d152b256f8e4e329eff01c388790b9cfea13d47b8bce930d9","target":"record","created_at":"2026-05-18T00:16:07Z","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":"545b1b9354978243010dbb4e7d98f90ee9bee769dc7f7e861e34e3beb23673a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-02-22T15:44:11Z","title_canon_sha256":"cd4b69c2ee41884f3b46e4ed4b4cd11f4f735bd69bc29aebf49022da49650569"},"schema_version":"1.0","source":{"id":"1802.08108","kind":"arxiv","version":2}},"canonical_sha256":"7c60f1556f238f3fad17cce7f23dd277a09e6c4e2e4844d80ca66d6ae571c2aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c60f1556f238f3fad17cce7f23dd277a09e6c4e2e4844d80ca66d6ae571c2aa","first_computed_at":"2026-05-18T00:16:07.790296Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:07.790296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RWf8CHEbvGR77+blUxR3yHQgUNxllclSy6Ty0a/sBFAS7gyAFAAoZH5/hdX7TbqGbJo3bPAmLmv/DxxVHcrmCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:07.791043Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.08108","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6bf522963787954d152b256f8e4e329eff01c388790b9cfea13d47b8bce930d9","sha256:4a23f57693dc75c4e041157c5258da71bb8f5c7f5b5ba90d4c7b5374dc8545de"],"state_sha256":"6bbb2c20433303a8b08eae4444442503931a94cde4f302afccb52fdf05b3fcc8"}