{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:DGKVJJ25YGCDJ2MX7TLJSUTITS","short_pith_number":"pith:DGKVJJ25","canonical_record":{"source":{"id":"cond-mat/9511093","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"1995-11-20T13:59:35Z","cross_cats_sorted":[],"title_canon_sha256":"2c217a6d85240b4c085edca67635227f7c8b97a93e0b434e8fade4144ed2c69e","abstract_canon_sha256":"aaa6aa22a6eaa98a26f218c6b82859ebc884166e4c4bbb436b20bcde29dc8590"},"schema_version":"1.0"},"canonical_sha256":"199554a75dc18434e997fcd69952689c997067df0aff401c1df3b3b46953bd9b","source":{"kind":"arxiv","id":"cond-mat/9511093","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9511093","created_at":"2026-05-18T03:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9511093v2","created_at":"2026-05-18T03:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9511093","created_at":"2026-05-18T03:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"DGKVJJ25YGCD","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"DGKVJJ25YGCDJ2MX","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"DGKVJJ25","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:DGKVJJ25YGCDJ2MX7TLJSUTITS","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9511093","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"1995-11-20T13:59:35Z","cross_cats_sorted":[],"title_canon_sha256":"2c217a6d85240b4c085edca67635227f7c8b97a93e0b434e8fade4144ed2c69e","abstract_canon_sha256":"aaa6aa22a6eaa98a26f218c6b82859ebc884166e4c4bbb436b20bcde29dc8590"},"schema_version":"1.0"},"canonical_sha256":"199554a75dc18434e997fcd69952689c997067df0aff401c1df3b3b46953bd9b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:59.268120Z","signature_b64":"nzeRKPdyHid1lT34UE4vRonAkvEEi4YD45/V4jg+I6c1+nvITjF2d+GQgZ6zJT+7YTBk7MErOMrRy8QkL2qGDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"199554a75dc18434e997fcd69952689c997067df0aff401c1df3b3b46953bd9b","last_reissued_at":"2026-05-18T03:41:59.267384Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:59.267384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9511093","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"26r/ZzC6cTIDKVwUP3zwEwvxog5HqvawK0QpaeGEjRsFdHf9Tt7S0Q2ahflFbjvzmeM0xnRdgmzS/sLgG5cYCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:31:08.994232Z"},"content_sha256":"048ac9c0ae80759459171bd2e153628bae226ee57dc4031587bcc72c5f824539","schema_version":"1.0","event_id":"sha256:048ac9c0ae80759459171bd2e153628bae226ee57dc4031587bcc72c5f824539"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:DGKVJJ25YGCDJ2MX7TLJSUTITS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase Diagram of a Model of Correlated Hopping of Electrons in a Lattice of Berry Molecules","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat","authors_text":"Alberto Parola, Erio Tosatti, Giuseppe Santoro, Nicola Manini","submitted_at":"1995-11-20T13:59:35Z","abstract_excerpt":"The $1D$ phase diagram of a model for correlated hopping of electrons in a lattice of Berry phase molecules is presented. Electrons hop in presence of an extra orbital degree of freedom at each site. This is mimicked as a spin-1 variable whose allowed states depend on the electron occupancy so as to take into account the orbital degeneracies of different molecular occupancies. In the $1D$ case we find that at low electron densities $n<<1$ there is a region with dominant superconducting correlations surviving an additional repulsive on-site interaction $U$ as strong as the bandwidth, $W=4t$. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9511093","kind":"arxiv","version":2},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EVsLpfyoa3x9yzUd8RCa27KekhQMHVD39xS6V/Ei2+LSkw+meepoGLEmQa1fIxE7Qb4HiRa5oohMDqyBDBtGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:31:08.994667Z"},"content_sha256":"8d8cbebe04d00b5b94afd5c8d42c759cb76f7205f01ae7a3844ff3e29c9c7808","schema_version":"1.0","event_id":"sha256:8d8cbebe04d00b5b94afd5c8d42c759cb76f7205f01ae7a3844ff3e29c9c7808"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS/bundle.json","state_url":"https://pith.science/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS/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":"2026-05-31T16:31:08Z","links":{"resolver":"https://pith.science/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS","bundle":"https://pith.science/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS/bundle.json","state":"https://pith.science/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DGKVJJ25YGCDJ2MX7TLJSUTITS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:DGKVJJ25YGCDJ2MX7TLJSUTITS","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":"aaa6aa22a6eaa98a26f218c6b82859ebc884166e4c4bbb436b20bcde29dc8590","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"1995-11-20T13:59:35Z","title_canon_sha256":"2c217a6d85240b4c085edca67635227f7c8b97a93e0b434e8fade4144ed2c69e"},"schema_version":"1.0","source":{"id":"cond-mat/9511093","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9511093","created_at":"2026-05-18T03:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9511093v2","created_at":"2026-05-18T03:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9511093","created_at":"2026-05-18T03:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"DGKVJJ25YGCD","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"DGKVJJ25YGCDJ2MX","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"DGKVJJ25","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:8d8cbebe04d00b5b94afd5c8d42c759cb76f7205f01ae7a3844ff3e29c9c7808","target":"graph","created_at":"2026-05-18T03:41:59Z","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":"The $1D$ phase diagram of a model for correlated hopping of electrons in a lattice of Berry phase molecules is presented. Electrons hop in presence of an extra orbital degree of freedom at each site. This is mimicked as a spin-1 variable whose allowed states depend on the electron occupancy so as to take into account the orbital degeneracies of different molecular occupancies. In the $1D$ case we find that at low electron densities $n<<1$ there is a region with dominant superconducting correlations surviving an additional repulsive on-site interaction $U$ as strong as the bandwidth, $W=4t$. Th","authors_text":"Alberto Parola, Erio Tosatti, Giuseppe Santoro, Nicola Manini","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat","submitted_at":"1995-11-20T13:59:35Z","title":"Phase Diagram of a Model of Correlated Hopping of Electrons in a Lattice of Berry Molecules"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9511093","kind":"arxiv","version":2},"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":"sha256:048ac9c0ae80759459171bd2e153628bae226ee57dc4031587bcc72c5f824539","target":"record","created_at":"2026-05-18T03:41:59Z","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":"aaa6aa22a6eaa98a26f218c6b82859ebc884166e4c4bbb436b20bcde29dc8590","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"1995-11-20T13:59:35Z","title_canon_sha256":"2c217a6d85240b4c085edca67635227f7c8b97a93e0b434e8fade4144ed2c69e"},"schema_version":"1.0","source":{"id":"cond-mat/9511093","kind":"arxiv","version":2}},"canonical_sha256":"199554a75dc18434e997fcd69952689c997067df0aff401c1df3b3b46953bd9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"199554a75dc18434e997fcd69952689c997067df0aff401c1df3b3b46953bd9b","first_computed_at":"2026-05-18T03:41:59.267384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:59.267384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nzeRKPdyHid1lT34UE4vRonAkvEEi4YD45/V4jg+I6c1+nvITjF2d+GQgZ6zJT+7YTBk7MErOMrRy8QkL2qGDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:59.268120Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9511093","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:048ac9c0ae80759459171bd2e153628bae226ee57dc4031587bcc72c5f824539","sha256:8d8cbebe04d00b5b94afd5c8d42c759cb76f7205f01ae7a3844ff3e29c9c7808"],"state_sha256":"77125d59f018e9dd5e574992b847b379a65b8c2e455aa444e18697f8c3fb1266"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z1ehxGjK71By0tJ39/F3FOcxRGQloAxLoOZCJC182G5jiTs/12ava0sLO2lYqKLdeeQc12nhJGjIvvErQGBNAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T16:31:08.997482Z","bundle_sha256":"a6fc8c4652880996943db6151a9f468afdbb21e0d431c1dee4273c8208964ec9"}}