{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4GWN5XZJYROV5EXKWQ56QORV5Y","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":"d0b72beb1d5f7fbee2d7efcee02d0e2fee345c33bdc38bf3fd8ef0aec7faedf6","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T09:28:15Z","title_canon_sha256":"0fbfffe5fb394e561be2d482280757f07af9e26db5a924771552e1e83604b624"},"schema_version":"1.0","source":{"id":"1212.2352","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2352","created_at":"2026-05-18T01:52:40Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2352v1","created_at":"2026-05-18T01:52:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2352","created_at":"2026-05-18T01:52:40Z"},{"alias_kind":"pith_short_12","alias_value":"4GWN5XZJYROV","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4GWN5XZJYROV5EXK","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4GWN5XZJ","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:3fd7dbef67ca4b78f824833be9f113f806a100873946f33df2d706ea3bcf32db","target":"graph","created_at":"2026-05-18T01:52:40Z","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 represent the superconducting ceramic compounds by the single band extended Hubbard model. We solve this model for the simultaneous presence of antiferromagnetism and the d-wave superconductivity in the Hartree-Fock (H-F) and in the coherent potential (CP) approximation, which is applied to the on-site Coulomb repulsion U. The hopping interaction used in addition to the Coulomb repulsion causes rapid expansion of the band at carrier concentrations departing from unity. This expansion shifts the d-wave superconductivity away from the half filled point reducing its occupation range approximat","authors_text":"Grzegorz G\\'orski, Jerzy Mizia, Krzysztof Kucab","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T09:28:15Z","title":"Appearance of Antiferromagnetism and Superconductivity in Superconducting Cuprates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2352","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:eb870bc2e6d87a599cb70b9000463562ff382f1178be0b235ab12d1ae16bc440","target":"record","created_at":"2026-05-18T01:52:40Z","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":"d0b72beb1d5f7fbee2d7efcee02d0e2fee345c33bdc38bf3fd8ef0aec7faedf6","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-11T09:28:15Z","title_canon_sha256":"0fbfffe5fb394e561be2d482280757f07af9e26db5a924771552e1e83604b624"},"schema_version":"1.0","source":{"id":"1212.2352","kind":"arxiv","version":1}},"canonical_sha256":"e1acdedf29c45d5e92eab43be83a35ee3be3f102848520fd56283ff98614cff8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1acdedf29c45d5e92eab43be83a35ee3be3f102848520fd56283ff98614cff8","first_computed_at":"2026-05-18T01:52:40.191250Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:40.191250Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LIlkMAjJSsHsnJ5bawzcVkHnHpZdN56eFWP8p3OlodwmzncAumWX/A6cOLYM1WW5DSy/4dD8dmDh1ThVOf1yCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:40.191833Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.2352","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb870bc2e6d87a599cb70b9000463562ff382f1178be0b235ab12d1ae16bc440","sha256:3fd7dbef67ca4b78f824833be9f113f806a100873946f33df2d706ea3bcf32db"],"state_sha256":"001663b93b5be21708949c67080eda8da634d05e6d1424a03f9853c6c0938275"}