{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:36YD5UDXWJPOMFXGC4HW3IOM4Z","short_pith_number":"pith:36YD5UDX","canonical_record":{"source":{"id":"2309.15095","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-09-26T17:41:32Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"af6305bebadcc18b100be4c88c6f03995f756681621b09370d23b9e10ae445e9","abstract_canon_sha256":"9ee6d422c65114be6c23c484cc9c086e23775eeb93252acdfac5be12388f3393"},"schema_version":"1.0"},"canonical_sha256":"dfb03ed077b25ee616e6170f6da1cce67f0bfb4dd315766be9e853d08c4597b8","source":{"kind":"arxiv","id":"2309.15095","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.15095","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"arxiv_version","alias_value":"2309.15095v4","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.15095","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"pith_short_12","alias_value":"36YD5UDXWJPO","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"pith_short_16","alias_value":"36YD5UDXWJPOMFXG","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"pith_short_8","alias_value":"36YD5UDX","created_at":"2026-07-05T07:17:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:36YD5UDXWJPOMFXGC4HW3IOM4Z","target":"record","payload":{"canonical_record":{"source":{"id":"2309.15095","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-09-26T17:41:32Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"af6305bebadcc18b100be4c88c6f03995f756681621b09370d23b9e10ae445e9","abstract_canon_sha256":"9ee6d422c65114be6c23c484cc9c086e23775eeb93252acdfac5be12388f3393"},"schema_version":"1.0"},"canonical_sha256":"dfb03ed077b25ee616e6170f6da1cce67f0bfb4dd315766be9e853d08c4597b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:17:54.967996Z","signature_b64":"Yv+Zll4rahi2w1dQKFfT+9EV3ucnhT2kYYUfl0ImIH7kXhIdrG0nZydwS0xQnnxTMhHLXNxROV3rMliaiSxTDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dfb03ed077b25ee616e6170f6da1cce67f0bfb4dd315766be9e853d08c4597b8","last_reissued_at":"2026-07-05T07:17:54.967496Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:17:54.967496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2309.15095","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:17:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r4gsffWDopYUmP7ahngqM94ZJYI0LG/iq2UJbr2ZOWDQhytEqMH8spI+UQV04if7ey89hr8yV+RIR8noJ3foAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:51:25.011365Z"},"content_sha256":"85f7bc1b16a063dcc55ee35eb4518663795feb0ec6359c411b9943ff3e9690b6","schema_version":"1.0","event_id":"sha256:85f7bc1b16a063dcc55ee35eb4518663795feb0ec6359c411b9943ff3e9690b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:36YD5UDXWJPOMFXGC4HW3IOM4Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong pairing from small Fermi surface beyond weak coupling: Application to La$_3$Ni$_2$O$_7$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Hanbit Oh, Hui Yang, Ya-Hui Zhang","submitted_at":"2023-09-26T17:41:32Z","abstract_excerpt":"The studies of high-temperature superconductors raise a fundamental question: Can a small Fermi surface phase, which violates the Luttinger theorem, exist and give rise to superconductivity? Our work provides a positive answer through a controlled theory based on a bilayer model with strong inter-layer spin-spin coupling ($J_\\perp$) but no inter-layer hopping ($t_\\perp$). Then small hole doping of the rung-singlet insulator with two electrons per rung naturally leads to small hole pockets with Fermi surface volume per flavor smaller than the free fermion result by $1/2$ of the Brillouin zone(B"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.15095","kind":"arxiv","version":4},"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/2309.15095/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":"2026-07-05T07:17:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qVWe9WQ3AlhjS9LFUw2A/O+44Rvd7dpaievJiLC0yfspOM9reUHVpMNX0TMRLVhX2n9R3XaWotCQUPim8R3WAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:51:25.011902Z"},"content_sha256":"513ca602e3c1a26bd8ac4b1d23e924b0576629688a610dff55536a408479f65f","schema_version":"1.0","event_id":"sha256:513ca602e3c1a26bd8ac4b1d23e924b0576629688a610dff55536a408479f65f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z/bundle.json","state_url":"https://pith.science/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z/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":"2026-08-12T03:51:25Z","links":{"resolver":"https://pith.science/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z","bundle":"https://pith.science/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z/bundle.json","state":"https://pith.science/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/36YD5UDXWJPOMFXGC4HW3IOM4Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:36YD5UDXWJPOMFXGC4HW3IOM4Z","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":"9ee6d422c65114be6c23c484cc9c086e23775eeb93252acdfac5be12388f3393","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-09-26T17:41:32Z","title_canon_sha256":"af6305bebadcc18b100be4c88c6f03995f756681621b09370d23b9e10ae445e9"},"schema_version":"1.0","source":{"id":"2309.15095","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.15095","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"arxiv_version","alias_value":"2309.15095v4","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.15095","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"pith_short_12","alias_value":"36YD5UDXWJPO","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"pith_short_16","alias_value":"36YD5UDXWJPOMFXG","created_at":"2026-07-05T07:17:54Z"},{"alias_kind":"pith_short_8","alias_value":"36YD5UDX","created_at":"2026-07-05T07:17:54Z"}],"graph_snapshots":[{"event_id":"sha256:513ca602e3c1a26bd8ac4b1d23e924b0576629688a610dff55536a408479f65f","target":"graph","created_at":"2026-07-05T07:17:54Z","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/2309.15095/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The studies of high-temperature superconductors raise a fundamental question: Can a small Fermi surface phase, which violates the Luttinger theorem, exist and give rise to superconductivity? Our work provides a positive answer through a controlled theory based on a bilayer model with strong inter-layer spin-spin coupling ($J_\\perp$) but no inter-layer hopping ($t_\\perp$). Then small hole doping of the rung-singlet insulator with two electrons per rung naturally leads to small hole pockets with Fermi surface volume per flavor smaller than the free fermion result by $1/2$ of the Brillouin zone(B","authors_text":"Hanbit Oh, Hui Yang, Ya-Hui Zhang","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-09-26T17:41:32Z","title":"Strong pairing from small Fermi surface beyond weak coupling: Application to La$_3$Ni$_2$O$_7$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.15095","kind":"arxiv","version":4},"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":"sha256:85f7bc1b16a063dcc55ee35eb4518663795feb0ec6359c411b9943ff3e9690b6","target":"record","created_at":"2026-07-05T07:17:54Z","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":"9ee6d422c65114be6c23c484cc9c086e23775eeb93252acdfac5be12388f3393","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-09-26T17:41:32Z","title_canon_sha256":"af6305bebadcc18b100be4c88c6f03995f756681621b09370d23b9e10ae445e9"},"schema_version":"1.0","source":{"id":"2309.15095","kind":"arxiv","version":4}},"canonical_sha256":"dfb03ed077b25ee616e6170f6da1cce67f0bfb4dd315766be9e853d08c4597b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dfb03ed077b25ee616e6170f6da1cce67f0bfb4dd315766be9e853d08c4597b8","first_computed_at":"2026-07-05T07:17:54.967496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:17:54.967496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yv+Zll4rahi2w1dQKFfT+9EV3ucnhT2kYYUfl0ImIH7kXhIdrG0nZydwS0xQnnxTMhHLXNxROV3rMliaiSxTDw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:17:54.967996Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.15095","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85f7bc1b16a063dcc55ee35eb4518663795feb0ec6359c411b9943ff3e9690b6","sha256:513ca602e3c1a26bd8ac4b1d23e924b0576629688a610dff55536a408479f65f"],"state_sha256":"02fc07e078bf519632dd2dd4c5b4fd4d1d33222825907fa872bfe4b3381184b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MBtUPCElMcrIvQh/XUvSGYAAFyUnSItnjK6kuJ6KpOnTguu4XuJvMTjZ8Qmskf4yeJWCiRqUGItK6iC44HJlAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T03:51:25.016599Z","bundle_sha256":"62f6555728a15d9dddf1cd79a30fffe3a69cf584c9bf04c133c6f6e878adee4e"}}