{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:N7ASACENPA6RU3C32W7TWUQIZG","short_pith_number":"pith:N7ASACEN","canonical_record":{"source":{"id":"cond-mat/0311604","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2003-11-26T14:43:00Z","cross_cats_sorted":[],"title_canon_sha256":"6c664c7642d974c5bea5c8ddf4531adfbb250664fb6f9d7c35f60d9f230cc81b","abstract_canon_sha256":"0242f3554754fa89e49e3fcd84d2719120580e68a0953d7cb9939e28fada77af"},"schema_version":"1.0"},"canonical_sha256":"6fc120088d783d1a6c5bd5bf3b5208c99c14207abe54cc776e2aadf11d3b5cb9","source":{"kind":"arxiv","id":"cond-mat/0311604","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0311604","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0311604v1","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0311604","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"N7ASACENPA6R","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"pith_short_16","alias_value":"N7ASACENPA6RU3C3","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"pith_short_8","alias_value":"N7ASACEN","created_at":"2026-07-04T14:48:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:N7ASACENPA6RU3C32W7TWUQIZG","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0311604","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2003-11-26T14:43:00Z","cross_cats_sorted":[],"title_canon_sha256":"6c664c7642d974c5bea5c8ddf4531adfbb250664fb6f9d7c35f60d9f230cc81b","abstract_canon_sha256":"0242f3554754fa89e49e3fcd84d2719120580e68a0953d7cb9939e28fada77af"},"schema_version":"1.0"},"canonical_sha256":"6fc120088d783d1a6c5bd5bf3b5208c99c14207abe54cc776e2aadf11d3b5cb9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:48:58.951019Z","signature_b64":"jKpW+kP8UbX+KC2/mSuFeYyCFEj2LD2rOY0TKRCdSM/I4klaTW5GI51MNQ2HzRccauQi42o0HH4icEhwwbxiCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fc120088d783d1a6c5bd5bf3b5208c99c14207abe54cc776e2aadf11d3b5cb9","last_reissued_at":"2026-07-04T14:48:58.950679Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:48:58.950679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0311604","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":"2026-07-04T14:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"maxBlmKMF1gkaB/z5C79dHNIeXDBlA+AgMhFzW/35TyE6wbDiatwr3Ug04xl//h/Rivl/UmvIU96GYyJ+dPXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T18:44:50.800774Z"},"content_sha256":"c38b75909e51a4d35b6f0c0271f4c4ec5be6e5299a7023690d437b4e2eaaa711","schema_version":"1.0","event_id":"sha256:c38b75909e51a4d35b6f0c0271f4c4ec5be6e5299a7023690d437b4e2eaaa711"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:N7ASACENPA6RU3C32W7TWUQIZG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A renormalised hamiltonian approach for a resonant valence bond wavefunction","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"C. Gros, F. C. Zhang, H. Shiba, T. M. Rice","submitted_at":"2003-11-26T14:43:00Z","abstract_excerpt":"The effective Hamiltonian of strongly correlated electrons on a square lattice is replaced by a renormalised Hamiltonian and the factors that renormalise the kinetic energy of holes and the Heisenberg spin-spin coupling are calculated using a Gutzwiller approximation scheme. The accuracy of this renormalisation procedure is tested numerically and found to be qualitatively excellent. Within the scheme a resonant valence bond (RVB) wavefunction is found at half-filling to be lower in energy than the antiferromagnetic state. If the wavefunction is expressed in fermion operators, local SU(2) and U"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0311604","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0311604/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T14:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R/HHdsqHuzjmFFlPSePhuf1JP0Il6YVCZkM28NpZQyCW8w3oumLG/9UJwDr+jKsQHwqyIgHBF86mgSXLBpMQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T18:44:50.801297Z"},"content_sha256":"a8da0299b92c80c735593017b3d1fb19c5ea5b0123648eccee4c3a2c1a3b9123","schema_version":"1.0","event_id":"sha256:a8da0299b92c80c735593017b3d1fb19c5ea5b0123648eccee4c3a2c1a3b9123"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N7ASACENPA6RU3C32W7TWUQIZG/bundle.json","state_url":"https://pith.science/pith/N7ASACENPA6RU3C32W7TWUQIZG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N7ASACENPA6RU3C32W7TWUQIZG/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":"2026-08-12T18:44:50Z","links":{"resolver":"https://pith.science/pith/N7ASACENPA6RU3C32W7TWUQIZG","bundle":"https://pith.science/pith/N7ASACENPA6RU3C32W7TWUQIZG/bundle.json","state":"https://pith.science/pith/N7ASACENPA6RU3C32W7TWUQIZG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N7ASACENPA6RU3C32W7TWUQIZG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:N7ASACENPA6RU3C32W7TWUQIZG","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":"0242f3554754fa89e49e3fcd84d2719120580e68a0953d7cb9939e28fada77af","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2003-11-26T14:43:00Z","title_canon_sha256":"6c664c7642d974c5bea5c8ddf4531adfbb250664fb6f9d7c35f60d9f230cc81b"},"schema_version":"1.0","source":{"id":"cond-mat/0311604","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0311604","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0311604v1","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0311604","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"N7ASACENPA6R","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"pith_short_16","alias_value":"N7ASACENPA6RU3C3","created_at":"2026-07-04T14:48:58Z"},{"alias_kind":"pith_short_8","alias_value":"N7ASACEN","created_at":"2026-07-04T14:48:58Z"}],"graph_snapshots":[{"event_id":"sha256:a8da0299b92c80c735593017b3d1fb19c5ea5b0123648eccee4c3a2c1a3b9123","target":"graph","created_at":"2026-07-04T14:48:58Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0311604/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The effective Hamiltonian of strongly correlated electrons on a square lattice is replaced by a renormalised Hamiltonian and the factors that renormalise the kinetic energy of holes and the Heisenberg spin-spin coupling are calculated using a Gutzwiller approximation scheme. The accuracy of this renormalisation procedure is tested numerically and found to be qualitatively excellent. Within the scheme a resonant valence bond (RVB) wavefunction is found at half-filling to be lower in energy than the antiferromagnetic state. If the wavefunction is expressed in fermion operators, local SU(2) and U","authors_text":"C. Gros, F. C. Zhang, H. Shiba, T. M. Rice","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2003-11-26T14:43:00Z","title":"A renormalised hamiltonian approach for a resonant valence bond wavefunction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0311604","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:c38b75909e51a4d35b6f0c0271f4c4ec5be6e5299a7023690d437b4e2eaaa711","target":"record","created_at":"2026-07-04T14:48:58Z","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":"0242f3554754fa89e49e3fcd84d2719120580e68a0953d7cb9939e28fada77af","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2003-11-26T14:43:00Z","title_canon_sha256":"6c664c7642d974c5bea5c8ddf4531adfbb250664fb6f9d7c35f60d9f230cc81b"},"schema_version":"1.0","source":{"id":"cond-mat/0311604","kind":"arxiv","version":1}},"canonical_sha256":"6fc120088d783d1a6c5bd5bf3b5208c99c14207abe54cc776e2aadf11d3b5cb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6fc120088d783d1a6c5bd5bf3b5208c99c14207abe54cc776e2aadf11d3b5cb9","first_computed_at":"2026-07-04T14:48:58.950679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:48:58.950679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jKpW+kP8UbX+KC2/mSuFeYyCFEj2LD2rOY0TKRCdSM/I4klaTW5GI51MNQ2HzRccauQi42o0HH4icEhwwbxiCA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:48:58.951019Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0311604","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c38b75909e51a4d35b6f0c0271f4c4ec5be6e5299a7023690d437b4e2eaaa711","sha256:a8da0299b92c80c735593017b3d1fb19c5ea5b0123648eccee4c3a2c1a3b9123"],"state_sha256":"7de0078ef08d98010c0abf77cd949677932037d4b7eb2ac7baa83b738eefb7c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A32yLqulWByndU5TxfQiFKkmE+cbq+8/dpw617l5QKYjGS4hnRklCVGvOClteHfZW2pj3JLIZj1tLi3C9ysqAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T18:44:50.806112Z","bundle_sha256":"f9a53f9b4535fe99f662a9d8ca3bfeb51091c65b42084758ac9365acfc1b7d04"}}