{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:OTGAPI6NNE3XTZ53J33POV5NXE","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":"9f1c735795fbda0592611af115e6009c6574c79bc7303e500272ae0495f6e1d2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-02-15T13:05:28Z","title_canon_sha256":"20654494b051b75f0503865e1acd6eccf9ce02c2c3450ea43b35ba9a7135d4f9"},"schema_version":"1.0","source":{"id":"cond-mat/0502355","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0502355","created_at":"2026-05-18T01:06:53Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0502355v1","created_at":"2026-05-18T01:06:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0502355","created_at":"2026-05-18T01:06:53Z"},{"alias_kind":"pith_short_12","alias_value":"OTGAPI6NNE3X","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"OTGAPI6NNE3XTZ53","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"OTGAPI6N","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:1add24d28e095fd6261725c9d07fbbbf1a3fa03633dd070f6f7a96dc974cd34d","target":"graph","created_at":"2026-05-18T01:06:53Z","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 calculate ground-state energies and density distributions of Hubbard superlattices characterized by periodic modulations of the on-site interaction and the on-site potential. Both density-matrix renormalization group and density-functional methods are employed and compared. We find that small variations in the on-site potential $v_i$ can simulate, cancel, or even overcompensate effects due to much larger variations in the on-site interaction $U_i$. Our findings highlight the importance of nanoscale spatial inhomogeneity in strongly correlated systems, and call for reexamination of model cal","authors_text":"A. L. Malvezzi, K. Capelle, M. F. Silva, N. A. Lima","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-02-15T13:05:28Z","title":"Effects of nanoscale spatial inhomogeneity in strongly correlated systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0502355","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":"sha256:738b6abd5e212d9da8c75551ea27d9d5bc01de5e97fb80700f0a0733cb4c14b4","target":"record","created_at":"2026-05-18T01:06:53Z","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":"9f1c735795fbda0592611af115e6009c6574c79bc7303e500272ae0495f6e1d2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-02-15T13:05:28Z","title_canon_sha256":"20654494b051b75f0503865e1acd6eccf9ce02c2c3450ea43b35ba9a7135d4f9"},"schema_version":"1.0","source":{"id":"cond-mat/0502355","kind":"arxiv","version":1}},"canonical_sha256":"74cc07a3cd693779e7bb4ef6f757adb93047ee9fcc6988fbf48c09d7a12d00a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74cc07a3cd693779e7bb4ef6f757adb93047ee9fcc6988fbf48c09d7a12d00a6","first_computed_at":"2026-05-18T01:06:53.080557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:53.080557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"puX2psQfOLyuWbMbt2nm6n6M3n1BFMeI81h+tlVgEuIHtzjA150jnP9sq7y46BN+hFKYTBoe1NsH/vRTgubzBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:53.080889Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0502355","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:738b6abd5e212d9da8c75551ea27d9d5bc01de5e97fb80700f0a0733cb4c14b4","sha256:1add24d28e095fd6261725c9d07fbbbf1a3fa03633dd070f6f7a96dc974cd34d"],"state_sha256":"97fcbeded306ffdbdf0e00374de916360b0110dd56f88140e8c37f9cf9d96ce3"}