{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:Q4FB754YF5VPIH4V2743HUA773","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":"5ef05e81947d0e771ae29d0297e7a84fe8f01d4537455552f4cdbcab0b4dc1fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-05-18T13:04:05Z","title_canon_sha256":"e687188113f59210922e85ab81c7a6f30240a5c0c1b77cabdcf025939c6aeea8"},"schema_version":"1.0","source":{"id":"1005.3183","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3183","created_at":"2026-05-18T02:33:26Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3183v1","created_at":"2026-05-18T02:33:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3183","created_at":"2026-05-18T02:33:26Z"},{"alias_kind":"pith_short_12","alias_value":"Q4FB754YF5VP","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"Q4FB754YF5VPIH4V","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"Q4FB754Y","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:4078b75c97ebd9beefe91dc577248f57ff012458f82ea19be7162fc1ea6794a1","target":"graph","created_at":"2026-05-18T02:33:26Z","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 investigate how the neutron drip line is related to the density dependence of the symmetry energy, by using a macroscopic nuclear model that allows us to calculate nuclear masses in a way dependent on the equation of state of asymmetric nuclear matter. The neutron drip line obtained from these masses is shown to appreciably shift to a neutron-rich side in a nuclear chart as the density derivative of the symmetry energy increases. Such shift is clearly seen for light nuclei, a feature coming mainly from the surface property of neutron-rich nuclei.","authors_text":"Hiroyuki Koura, Kazuhiro Oyamatsu, Kei Iida","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-05-18T13:04:05Z","title":"Neutron drip line and the equation of state of nuclear matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3183","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":"sha256:8c80c676fa50cf122a7dc4608e222d4c748589a59898a0c97a97b0579e38694f","target":"record","created_at":"2026-05-18T02:33:26Z","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":"5ef05e81947d0e771ae29d0297e7a84fe8f01d4537455552f4cdbcab0b4dc1fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-05-18T13:04:05Z","title_canon_sha256":"e687188113f59210922e85ab81c7a6f30240a5c0c1b77cabdcf025939c6aeea8"},"schema_version":"1.0","source":{"id":"1005.3183","kind":"arxiv","version":1}},"canonical_sha256":"870a1ff7982f6af41f95d7f9b3d01ffec441b4ca6ff467d231c14bd672d5714b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"870a1ff7982f6af41f95d7f9b3d01ffec441b4ca6ff467d231c14bd672d5714b","first_computed_at":"2026-05-18T02:33:26.149052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:26.149052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eEi7k9sR6H1vRGErX0WZ3n4RIs8viP9ObuF6OvJ3ppy4LjpaXxpDbExQ4lO+ozE240b29VhASPbA0YKr2vG8DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:26.149598Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3183","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c80c676fa50cf122a7dc4608e222d4c748589a59898a0c97a97b0579e38694f","sha256:4078b75c97ebd9beefe91dc577248f57ff012458f82ea19be7162fc1ea6794a1"],"state_sha256":"28a11932b0af0bfc9e9607bca15710df14ce923c6a8ad4073b8dc5827b3757e6"}