{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:DQBAIGBK5B6ST6ZDSYYAGQWTFF","short_pith_number":"pith:DQBAIGBK","schema_version":"1.0","canonical_sha256":"1c0204182ae87d29fb2396300342d32973a2a4eb3f75477aa2c9e03c48dba0b3","source":{"kind":"arxiv","id":"1903.09947","version":3},"attestation_state":"computed","paper":{"title":"Thermodynamics of the metal-insulator transition in the extended Hubbard model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"E. G. C. P. van Loon, M. I. Katsnelson, M. Sch\\\"uler, T. O. Wehling","submitted_at":"2019-03-24T09:02:14Z","abstract_excerpt":"In contrast to the Hubbard model, the extended Hubbard model, which additionally accounts for non-local interactions, lacks systemic studies of thermodynamic properties especially across the metal-insulator transition. Using a variational principle, we perform such a systematic study and describe how non-local interactions screen local correlations differently in the Fermi-liquid and in the insulator. The thermodynamics reveal that non-local interactions are at least in parts responsible for first-order metal-insulator transitions in real materials."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1903.09947","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-03-24T09:02:14Z","cross_cats_sorted":[],"title_canon_sha256":"08928b6f5321294950f4f634bc770e90e78d71067ff806aa5f6d2ebd9fdb4ae8","abstract_canon_sha256":"7229fb52117a98f93a56974f3104403ffb8d9e7c0f91d75c7e763286e34d8db8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:02.856929Z","signature_b64":"Q/Zi18grDuZPidF2y0jViGUc9ZqFIiB5AeEko5UxY6sdPmknJkrfAdjr2yWmfysH0T3h1k8QBUbN6Dq09F2vBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c0204182ae87d29fb2396300342d32973a2a4eb3f75477aa2c9e03c48dba0b3","last_reissued_at":"2026-05-17T23:43:02.856281Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:02.856281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Thermodynamics of the metal-insulator transition in the extended Hubbard model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"E. G. C. P. van Loon, M. I. Katsnelson, M. Sch\\\"uler, T. O. Wehling","submitted_at":"2019-03-24T09:02:14Z","abstract_excerpt":"In contrast to the Hubbard model, the extended Hubbard model, which additionally accounts for non-local interactions, lacks systemic studies of thermodynamic properties especially across the metal-insulator transition. Using a variational principle, we perform such a systematic study and describe how non-local interactions screen local correlations differently in the Fermi-liquid and in the insulator. The thermodynamics reveal that non-local interactions are at least in parts responsible for first-order metal-insulator transitions in real materials."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.09947","kind":"arxiv","version":3},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1903.09947","created_at":"2026-05-17T23:43:02.856390+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.09947v3","created_at":"2026-05-17T23:43:02.856390+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.09947","created_at":"2026-05-17T23:43:02.856390+00:00"},{"alias_kind":"pith_short_12","alias_value":"DQBAIGBK5B6S","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_16","alias_value":"DQBAIGBK5B6ST6ZD","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_8","alias_value":"DQBAIGBK","created_at":"2026-05-18T12:33:15.570797+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF","json":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF.json","graph_json":"https://pith.science/api/pith-number/DQBAIGBK5B6ST6ZDSYYAGQWTFF/graph.json","events_json":"https://pith.science/api/pith-number/DQBAIGBK5B6ST6ZDSYYAGQWTFF/events.json","paper":"https://pith.science/paper/DQBAIGBK"},"agent_actions":{"view_html":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF","download_json":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF.json","view_paper":"https://pith.science/paper/DQBAIGBK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.09947&json=true","fetch_graph":"https://pith.science/api/pith-number/DQBAIGBK5B6ST6ZDSYYAGQWTFF/graph.json","fetch_events":"https://pith.science/api/pith-number/DQBAIGBK5B6ST6ZDSYYAGQWTFF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF/action/storage_attestation","attest_author":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF/action/author_attestation","sign_citation":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF/action/citation_signature","submit_replication":"https://pith.science/pith/DQBAIGBK5B6ST6ZDSYYAGQWTFF/action/replication_record"}},"created_at":"2026-05-17T23:43:02.856390+00:00","updated_at":"2026-05-17T23:43:02.856390+00:00"}