{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:HZCPWUFB2KKVOWGRDUFBTEAXNY","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":"f2b3ec71e5405c3661a00a55c8a638aa968baca7906b49f428ab66150fc0d6e8","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-11-09T06:57:00Z","title_canon_sha256":"d85aa3520dc50984f3077c917fcf731af52e5044a369027f87075e7ff4acaf72"},"schema_version":"1.0","source":{"id":"cond-mat/0611238","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0611238","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0611238v1","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0611238","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"HZCPWUFB2KKV","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"HZCPWUFB2KKVOWGR","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"HZCPWUFB","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:321b885cd4ec65c24f8c24a094fc66e89e66ebb2b81843ffc8c46761f477617a","target":"graph","created_at":"2026-05-18T01:39:39Z","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":"Ferromagnetism in the Hubbard model is investigated on sc, bcc, and fcc lattices using a systematic inverse-degeneracy ($1/{\\cal N}$) expansion which incorporates self-energy and vertex corrections such that spin-rotation symmetry and the Goldstone mode are explicitly preserved. First-order quantum corrections to magnon energies are evaluated for several cases, providing a comprehensive picture of the interplay of lattice, band dispersion, and interaction effects on the stability of the ferromagnetic state with respect to both long- and short-wavelength fluctuations. Our results support the be","authors_text":"Avinash Singh, Sudhakar Pandey","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-11-09T06:57:00Z","title":"Ferromagnetism in the t-t' Hubbard model: interplay of lattice, band dispersion, and interaction effects studied within a Goldstone-mode preserving scheme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0611238","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":"sha256:3308499fc02922d28c3d69b436b4a74c835235db7622d23935a6b09f85db8600","target":"record","created_at":"2026-05-18T01:39:39Z","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":"f2b3ec71e5405c3661a00a55c8a638aa968baca7906b49f428ab66150fc0d6e8","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-11-09T06:57:00Z","title_canon_sha256":"d85aa3520dc50984f3077c917fcf731af52e5044a369027f87075e7ff4acaf72"},"schema_version":"1.0","source":{"id":"cond-mat/0611238","kind":"arxiv","version":1}},"canonical_sha256":"3e44fb50a1d2955758d11d0a1990176e18b124947406246f84b22e97916d6553","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e44fb50a1d2955758d11d0a1990176e18b124947406246f84b22e97916d6553","first_computed_at":"2026-05-18T01:39:39.965350Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:39.965350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1T4L2el6RqKWBKbLWUQcUehI6YFE6O5+PLVdBqs1ArY5vXYVmT8q8Hi9yeBcEYlBrFsiSMUNVkCa4cgshJoJBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:39.965895Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0611238","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3308499fc02922d28c3d69b436b4a74c835235db7622d23935a6b09f85db8600","sha256:321b885cd4ec65c24f8c24a094fc66e89e66ebb2b81843ffc8c46761f477617a"],"state_sha256":"52a0ab7d1d0094d2809b00f91a5eceb509eab8c373b5ea9301f41f9438a16798"}