{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:FAGKYZB2WKACS2KWBKXG3KQ7Y5","short_pith_number":"pith:FAGKYZB2","schema_version":"1.0","canonical_sha256":"280cac643ab2802969560aae6daa1fc74726088232a902f2b3dd6778c8790054","source":{"kind":"arxiv","id":"1210.7595","version":1},"attestation_state":"computed","paper":{"title":"High-temperature surface superconductivity in rhombohedral graphite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Harju, M. Ij\\\"as, N. B. Kopnin, T. T. Heikkil\\\"a","submitted_at":"2012-10-29T09:04:26Z","abstract_excerpt":"Surface superconductivity in rhombohedral graphite is a robust phenomenon which can exist even when higher order hoppings between the layers lift the topological protection of the surface flat band and introduce a quadratic dispersion of electrons with a heavy effective mass. We show that for weak pairing interaction, the flat band character of the surface superconductivity transforms into a BCS-like relation with high critical temperature characterized by a higher coupling constant due to a much larger density of states than in the bulk. Our results offer an explanation for the recent finding"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1210.7595","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-10-29T09:04:26Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"7958adc10a63b00ad15f1aac140a58ed11534a8de74490c73f79e126448e330c","abstract_canon_sha256":"2f6194ae7cb82e0a1f10fa5332f944ceef9f050f922e9493af3207844d25f5fe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:26:08.761518Z","signature_b64":"9fI8Wji99Y9yegMT7RL/m3JeLc6yE4v3Bl5Ej9CqvIAvruPt7ic2pdQhSBjEoh+0I+Un4297Q/2egLyJSAyxDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"280cac643ab2802969560aae6daa1fc74726088232a902f2b3dd6778c8790054","last_reissued_at":"2026-05-18T03:26:08.760963Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:26:08.760963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-temperature surface superconductivity in rhombohedral graphite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Harju, M. Ij\\\"as, N. B. Kopnin, T. T. Heikkil\\\"a","submitted_at":"2012-10-29T09:04:26Z","abstract_excerpt":"Surface superconductivity in rhombohedral graphite is a robust phenomenon which can exist even when higher order hoppings between the layers lift the topological protection of the surface flat band and introduce a quadratic dispersion of electrons with a heavy effective mass. We show that for weak pairing interaction, the flat band character of the surface superconductivity transforms into a BCS-like relation with high critical temperature characterized by a higher coupling constant due to a much larger density of states than in the bulk. Our results offer an explanation for the recent finding"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7595","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1210.7595","created_at":"2026-05-18T03:26:08.761047+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.7595v1","created_at":"2026-05-18T03:26:08.761047+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7595","created_at":"2026-05-18T03:26:08.761047+00:00"},{"alias_kind":"pith_short_12","alias_value":"FAGKYZB2WKAC","created_at":"2026-05-18T12:27:04.183437+00:00"},{"alias_kind":"pith_short_16","alias_value":"FAGKYZB2WKACS2KW","created_at":"2026-05-18T12:27:04.183437+00:00"},{"alias_kind":"pith_short_8","alias_value":"FAGKYZB2","created_at":"2026-05-18T12:27:04.183437+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5","json":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5.json","graph_json":"https://pith.science/api/pith-number/FAGKYZB2WKACS2KWBKXG3KQ7Y5/graph.json","events_json":"https://pith.science/api/pith-number/FAGKYZB2WKACS2KWBKXG3KQ7Y5/events.json","paper":"https://pith.science/paper/FAGKYZB2"},"agent_actions":{"view_html":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5","download_json":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5.json","view_paper":"https://pith.science/paper/FAGKYZB2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.7595&json=true","fetch_graph":"https://pith.science/api/pith-number/FAGKYZB2WKACS2KWBKXG3KQ7Y5/graph.json","fetch_events":"https://pith.science/api/pith-number/FAGKYZB2WKACS2KWBKXG3KQ7Y5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5/action/storage_attestation","attest_author":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5/action/author_attestation","sign_citation":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5/action/citation_signature","submit_replication":"https://pith.science/pith/FAGKYZB2WKACS2KWBKXG3KQ7Y5/action/replication_record"}},"created_at":"2026-05-18T03:26:08.761047+00:00","updated_at":"2026-05-18T03:26:08.761047+00:00"}