{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:WCK2YBJ4ABLFQNMLBFWCGB5WUF","short_pith_number":"pith:WCK2YBJ4","canonical_record":{"source":{"id":"0810.2614","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-10-15T07:13:02Z","cross_cats_sorted":[],"title_canon_sha256":"9c5eaa4f9d495cdc1f2b26eccc5592f9580f2906cb2306f405ed4b39595c7b89","abstract_canon_sha256":"3ad301d6147033b8c5b39cb3a318c5a5cc6250873f265b31cdbd503e0c56075a"},"schema_version":"1.0"},"canonical_sha256":"b095ac053c005658358b096c2307b6a149e2990e0f9fde4dfb90168cbe5864f0","source":{"kind":"arxiv","id":"0810.2614","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.2614","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"arxiv_version","alias_value":"0810.2614v1","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.2614","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"pith_short_12","alias_value":"WCK2YBJ4ABLF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"WCK2YBJ4ABLFQNML","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"WCK2YBJ4","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:WCK2YBJ4ABLFQNMLBFWCGB5WUF","target":"record","payload":{"canonical_record":{"source":{"id":"0810.2614","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-10-15T07:13:02Z","cross_cats_sorted":[],"title_canon_sha256":"9c5eaa4f9d495cdc1f2b26eccc5592f9580f2906cb2306f405ed4b39595c7b89","abstract_canon_sha256":"3ad301d6147033b8c5b39cb3a318c5a5cc6250873f265b31cdbd503e0c56075a"},"schema_version":"1.0"},"canonical_sha256":"b095ac053c005658358b096c2307b6a149e2990e0f9fde4dfb90168cbe5864f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:31.864056Z","signature_b64":"vyc4v5CoZ12WEBa47ywMdF7eUYKAHYt87nY5eh27T9RS4W7rTb+TDj6+AsWRn59cPltyAW3RqI2esI22BJYECw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b095ac053c005658358b096c2307b6a149e2990e0f9fde4dfb90168cbe5864f0","last_reissued_at":"2026-05-18T02:15:31.863161Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:31.863161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0810.2614","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fOec6FpfT4xk4/sepHCrySrAz4uke93GD4EqfKLFOA/FAMY3K/Jf02XKjm8Tc6Xaz4jwMVbGkQ1cF2xrNBDlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:48:08.659623Z"},"content_sha256":"ec835556afae4f16e45af307b3c18106502a0eb0dbfbc51786ea625f547cf6a3","schema_version":"1.0","event_id":"sha256:ec835556afae4f16e45af307b3c18106502a0eb0dbfbc51786ea625f547cf6a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:WCK2YBJ4ABLFQNMLBFWCGB5WUF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron correlation in metal clusters, quantum dots and quantum rings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"M. Manninen, S.M. Reimann","submitted_at":"2008-10-15T07:13:02Z","abstract_excerpt":"This short review presents a few case studies of finite electron systems for which strong correlations play a dominant role. In simple metal clusters, the valence electrons determine stability and shape of the clusters. The ionic skeleton of alkali metals is soft, and cluster geometries are often solely determined by electron correlations. In quantum dots and rings, the electrons may be confined by an external electrostatic potential, formed by a gated heterostructure. In the low density limit, the electrons may form so-called Wigner molecules, for which the many-body quantum spectra reveal th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.2614","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B3VyEQlzYFxC21S2ixR1asIV+C51Qcf2nCIckHMQY/mL5bDsFj5Lybi3L8LoGJrU7RR/K8bliR53G197YJ29AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:48:08.659968Z"},"content_sha256":"f6edceb52c309f2fbdfe4b785ff1d8a3d394ed68115c189ce8577c389f904f31","schema_version":"1.0","event_id":"sha256:f6edceb52c309f2fbdfe4b785ff1d8a3d394ed68115c189ce8577c389f904f31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF/bundle.json","state_url":"https://pith.science/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-03T19:48:08Z","links":{"resolver":"https://pith.science/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF","bundle":"https://pith.science/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF/bundle.json","state":"https://pith.science/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCK2YBJ4ABLFQNMLBFWCGB5WUF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:WCK2YBJ4ABLFQNMLBFWCGB5WUF","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":"3ad301d6147033b8c5b39cb3a318c5a5cc6250873f265b31cdbd503e0c56075a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-10-15T07:13:02Z","title_canon_sha256":"9c5eaa4f9d495cdc1f2b26eccc5592f9580f2906cb2306f405ed4b39595c7b89"},"schema_version":"1.0","source":{"id":"0810.2614","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.2614","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"arxiv_version","alias_value":"0810.2614v1","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.2614","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"pith_short_12","alias_value":"WCK2YBJ4ABLF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"WCK2YBJ4ABLFQNML","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"WCK2YBJ4","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:f6edceb52c309f2fbdfe4b785ff1d8a3d394ed68115c189ce8577c389f904f31","target":"graph","created_at":"2026-05-18T02:15:31Z","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":"This short review presents a few case studies of finite electron systems for which strong correlations play a dominant role. In simple metal clusters, the valence electrons determine stability and shape of the clusters. The ionic skeleton of alkali metals is soft, and cluster geometries are often solely determined by electron correlations. In quantum dots and rings, the electrons may be confined by an external electrostatic potential, formed by a gated heterostructure. In the low density limit, the electrons may form so-called Wigner molecules, for which the many-body quantum spectra reveal th","authors_text":"M. Manninen, S.M. Reimann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-10-15T07:13:02Z","title":"Electron correlation in metal clusters, quantum dots and quantum rings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.2614","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:ec835556afae4f16e45af307b3c18106502a0eb0dbfbc51786ea625f547cf6a3","target":"record","created_at":"2026-05-18T02:15:31Z","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":"3ad301d6147033b8c5b39cb3a318c5a5cc6250873f265b31cdbd503e0c56075a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2008-10-15T07:13:02Z","title_canon_sha256":"9c5eaa4f9d495cdc1f2b26eccc5592f9580f2906cb2306f405ed4b39595c7b89"},"schema_version":"1.0","source":{"id":"0810.2614","kind":"arxiv","version":1}},"canonical_sha256":"b095ac053c005658358b096c2307b6a149e2990e0f9fde4dfb90168cbe5864f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b095ac053c005658358b096c2307b6a149e2990e0f9fde4dfb90168cbe5864f0","first_computed_at":"2026-05-18T02:15:31.863161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:31.863161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vyc4v5CoZ12WEBa47ywMdF7eUYKAHYt87nY5eh27T9RS4W7rTb+TDj6+AsWRn59cPltyAW3RqI2esI22BJYECw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:31.864056Z","signed_message":"canonical_sha256_bytes"},"source_id":"0810.2614","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec835556afae4f16e45af307b3c18106502a0eb0dbfbc51786ea625f547cf6a3","sha256:f6edceb52c309f2fbdfe4b785ff1d8a3d394ed68115c189ce8577c389f904f31"],"state_sha256":"d8167f54c28296fe93d3f87b9d0c6f63ab4cd751acdf6308a0072bb0753aa205"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XFQs+qsArWxsZPcPLbYm3PNsJZfEvIEVq6fWKzOtv7zFGN4vMUkSO59ilvgTO6eAbFY+/Zhnzse9eY3KxxyZDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T19:48:08.661925Z","bundle_sha256":"044d804b76024e0d1dcdaceeaf657c15d8fc96bfc766101a30e145ade37c4a10"}}