{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GLBDHHQNMB4R4T3SBM57GALSPW","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":"670faea2bb90806d3b575a0578fdd054efd9a41702ccb890d38f200941e8e346","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-11-21T05:08:25Z","title_canon_sha256":"3e87f7fce71bc8ef50194a90ae0a832d88c39e26b8498c65503adb7371474b8a"},"schema_version":"1.0","source":{"id":"1511.06840","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.06840","created_at":"2026-05-18T01:22:32Z"},{"alias_kind":"arxiv_version","alias_value":"1511.06840v2","created_at":"2026-05-18T01:22:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.06840","created_at":"2026-05-18T01:22:32Z"},{"alias_kind":"pith_short_12","alias_value":"GLBDHHQNMB4R","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GLBDHHQNMB4R4T3S","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GLBDHHQN","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:3260c1eeef8e5d8bc11aa6951f55c555b12ff2caaf7a9c37daad5e88bbd0c08e","target":"graph","created_at":"2026-05-18T01:22:32Z","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 introduce a novel method to obtain level densities in large-scale shell-model calculations. Our method is a stochastic estimation of eigenvalue count based on a shifted Krylov-subspace method, which enables us to obtain level densities of huge Hamiltonian matrices. This framework leads to a successful description of both low-lying spectroscopy and the experimentally observed equilibration of $J^\\pi=2^+$ and $2^-$ states in $^{58}$Ni in a unified manner.","authors_text":"Noritaka Shimizu, Takaharu Otsuka, Takahiro Mizusaki, Tetsuya Sakurai, Yasunori Futamura, Yutaka Utsuno","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-11-21T05:08:25Z","title":"Stochastic Estimation of Nuclear Level Density in the Nuclear Shell Model: An Application to Parity-Dependent Level Density in $^{58}$Ni"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.06840","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":"sha256:56d50dfedcc9bffbe61bcda802416982e834b1fc2a5e6d6c99f2a82308c075f0","target":"record","created_at":"2026-05-18T01:22:32Z","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":"670faea2bb90806d3b575a0578fdd054efd9a41702ccb890d38f200941e8e346","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-11-21T05:08:25Z","title_canon_sha256":"3e87f7fce71bc8ef50194a90ae0a832d88c39e26b8498c65503adb7371474b8a"},"schema_version":"1.0","source":{"id":"1511.06840","kind":"arxiv","version":2}},"canonical_sha256":"32c2339e0d60791e4f720b3bf301727d9620565274ff80349b98da4eef0952de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"32c2339e0d60791e4f720b3bf301727d9620565274ff80349b98da4eef0952de","first_computed_at":"2026-05-18T01:22:32.977168Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:32.977168Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V8Hrgx4xXZbmb/6HEY4k9LuOMrIV5FweeFe5CeOnAtJHn8oL/WphjlfwwWqftJ/9ame9bl8WzMfJD//golk9Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:32.977591Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.06840","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56d50dfedcc9bffbe61bcda802416982e834b1fc2a5e6d6c99f2a82308c075f0","sha256:3260c1eeef8e5d8bc11aa6951f55c555b12ff2caaf7a9c37daad5e88bbd0c08e"],"state_sha256":"c49ae5845b013834ab099fc0cc90b04f6d124d9532bff6f1096371c29bc38cea"}