{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:7O4QCXZD7X2I5L7AW7D76YTHKM","short_pith_number":"pith:7O4QCXZD","canonical_record":{"source":{"id":"2507.18598","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-07-24T17:31:37Z","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"title_canon_sha256":"ed494501e90ca089b4b667efc98817b010879d576cb583ec1a290561b1a7d3f9","abstract_canon_sha256":"01cee0aa350ea6fa33dfa4e022383a74b08c9f8f4cefdf606756d81345792577"},"schema_version":"1.0"},"canonical_sha256":"fbb9015f23fdf48eafe0b7c7ff62675314bf3aad502162d0e4401e994bf30bf9","source":{"kind":"arxiv","id":"2507.18598","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.18598","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"arxiv_version","alias_value":"2507.18598v1","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.18598","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"pith_short_12","alias_value":"7O4QCXZD7X2I","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"pith_short_16","alias_value":"7O4QCXZD7X2I5L7A","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"pith_short_8","alias_value":"7O4QCXZD","created_at":"2026-07-05T11:42:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:7O4QCXZD7X2I5L7AW7D76YTHKM","target":"record","payload":{"canonical_record":{"source":{"id":"2507.18598","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-07-24T17:31:37Z","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"title_canon_sha256":"ed494501e90ca089b4b667efc98817b010879d576cb583ec1a290561b1a7d3f9","abstract_canon_sha256":"01cee0aa350ea6fa33dfa4e022383a74b08c9f8f4cefdf606756d81345792577"},"schema_version":"1.0"},"canonical_sha256":"fbb9015f23fdf48eafe0b7c7ff62675314bf3aad502162d0e4401e994bf30bf9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:42:50.759030Z","signature_b64":"LPmtN4ObOODhK+SeaJIwhzdHLCAU49Zr5O7BuqTPNilszzJEqiu0tx2r5+UZq0qsLjJJZKYJiniQXVyZbRE5Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fbb9015f23fdf48eafe0b7c7ff62675314bf3aad502162d0e4401e994bf30bf9","last_reissued_at":"2026-07-05T11:42:50.758520Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:42:50.758520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.18598","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":"2026-07-05T11:42:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/uwJdAD2fddqhhSfJBu7dXBGQJcoiVW+C1wOIV4cOSRau+a9CerTYzeCd/a888CQPc6tuL3YmpnZfxHpkYxWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T00:41:59.525052Z"},"content_sha256":"def3cc5f6ad01742bdf75eb46b6105db23b463a5cc56b33a66cfe6b99c2402bf","schema_version":"1.0","event_id":"sha256:def3cc5f6ad01742bdf75eb46b6105db23b463a5cc56b33a66cfe6b99c2402bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:7O4QCXZD7X2I5L7AW7D76YTHKM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity from dual-surface carriers in rhombohedral graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"Anna Okounkova, Cyprian Lewandowski, Derek Waleffe, Joshua Folk, Kenji Watanabe, Manish Kumar, Matthew Yankowitz, Raveel Tejani, Takashi Taniguchi, Vo Tien Phong","submitted_at":"2025-07-24T17:31:37Z","abstract_excerpt":"Intrinsic rhombohedral graphene hosts an unusual low-energy electronic wavefunction, predominantly localized at its outer crystal faces with negligible presence in the bulk. Increasing the number of graphene layers amplifies the density of states near charge neutrality, greatly enhancing the susceptibility to symmetry-breaking phases. Here, we report superconductivity in rhombohedral graphene arising from an unusual charge-delocalized semimetallic normal state, characterized by coexisting valence- and conduction-band Fermi pockets split to opposite crystal surfaces. In octalayer graphene, the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.18598","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/2507.18598/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":"2026-07-05T11:42:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aYszyCNEfLiU9G5kNDdzEVC6EN/QDHCzb8OKlDdd1uDyDaCnOfbPciWU2UZwGZf8bWrdvLz4GGIr2VdC+lzcCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T00:41:59.526045Z"},"content_sha256":"29960065bd6d350a0654e6c04c753d463486d45d055fbe17e39534e247100055","schema_version":"1.0","event_id":"sha256:29960065bd6d350a0654e6c04c753d463486d45d055fbe17e39534e247100055"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7O4QCXZD7X2I5L7AW7D76YTHKM/bundle.json","state_url":"https://pith.science/pith/7O4QCXZD7X2I5L7AW7D76YTHKM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7O4QCXZD7X2I5L7AW7D76YTHKM/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":"2026-08-09T00:41:59Z","links":{"resolver":"https://pith.science/pith/7O4QCXZD7X2I5L7AW7D76YTHKM","bundle":"https://pith.science/pith/7O4QCXZD7X2I5L7AW7D76YTHKM/bundle.json","state":"https://pith.science/pith/7O4QCXZD7X2I5L7AW7D76YTHKM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7O4QCXZD7X2I5L7AW7D76YTHKM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7O4QCXZD7X2I5L7AW7D76YTHKM","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":"01cee0aa350ea6fa33dfa4e022383a74b08c9f8f4cefdf606756d81345792577","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-07-24T17:31:37Z","title_canon_sha256":"ed494501e90ca089b4b667efc98817b010879d576cb583ec1a290561b1a7d3f9"},"schema_version":"1.0","source":{"id":"2507.18598","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.18598","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"arxiv_version","alias_value":"2507.18598v1","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.18598","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"pith_short_12","alias_value":"7O4QCXZD7X2I","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"pith_short_16","alias_value":"7O4QCXZD7X2I5L7A","created_at":"2026-07-05T11:42:50Z"},{"alias_kind":"pith_short_8","alias_value":"7O4QCXZD","created_at":"2026-07-05T11:42:50Z"}],"graph_snapshots":[{"event_id":"sha256:29960065bd6d350a0654e6c04c753d463486d45d055fbe17e39534e247100055","target":"graph","created_at":"2026-07-05T11:42:50Z","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/2507.18598/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Intrinsic rhombohedral graphene hosts an unusual low-energy electronic wavefunction, predominantly localized at its outer crystal faces with negligible presence in the bulk. Increasing the number of graphene layers amplifies the density of states near charge neutrality, greatly enhancing the susceptibility to symmetry-breaking phases. Here, we report superconductivity in rhombohedral graphene arising from an unusual charge-delocalized semimetallic normal state, characterized by coexisting valence- and conduction-band Fermi pockets split to opposite crystal surfaces. In octalayer graphene, the ","authors_text":"Anna Okounkova, Cyprian Lewandowski, Derek Waleffe, Joshua Folk, Kenji Watanabe, Manish Kumar, Matthew Yankowitz, Raveel Tejani, Takashi Taniguchi, Vo Tien Phong","cross_cats":["cond-mat.str-el","cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-07-24T17:31:37Z","title":"Superconductivity from dual-surface carriers in rhombohedral graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.18598","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:def3cc5f6ad01742bdf75eb46b6105db23b463a5cc56b33a66cfe6b99c2402bf","target":"record","created_at":"2026-07-05T11:42:50Z","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":"01cee0aa350ea6fa33dfa4e022383a74b08c9f8f4cefdf606756d81345792577","cross_cats_sorted":["cond-mat.str-el","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-07-24T17:31:37Z","title_canon_sha256":"ed494501e90ca089b4b667efc98817b010879d576cb583ec1a290561b1a7d3f9"},"schema_version":"1.0","source":{"id":"2507.18598","kind":"arxiv","version":1}},"canonical_sha256":"fbb9015f23fdf48eafe0b7c7ff62675314bf3aad502162d0e4401e994bf30bf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fbb9015f23fdf48eafe0b7c7ff62675314bf3aad502162d0e4401e994bf30bf9","first_computed_at":"2026-07-05T11:42:50.758520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:42:50.758520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LPmtN4ObOODhK+SeaJIwhzdHLCAU49Zr5O7BuqTPNilszzJEqiu0tx2r5+UZq0qsLjJJZKYJiniQXVyZbRE5Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T11:42:50.759030Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.18598","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:def3cc5f6ad01742bdf75eb46b6105db23b463a5cc56b33a66cfe6b99c2402bf","sha256:29960065bd6d350a0654e6c04c753d463486d45d055fbe17e39534e247100055"],"state_sha256":"650fc0fee74ca50d5c67b9af4303355ab26d375f5e1fbc615b7e9fde32d5df1d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O2qMlQio2iFsR6SrxNV0pINGHET2umUCWgiEjfTDOdNqbjLQf8a/cKOELUmMnNqbXBtBmYCiqPGngfy5PsVMDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T00:41:59.532496Z","bundle_sha256":"a1e1025598c4a6a9ea7520b29d9be19a186f01108d92e0ed41bc13d0128cd563"}}