{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:NCE3W2RYXPL5I26JR5BY7FMDEW","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":"ae78ee7b5995767784e1e657b29b6920bf50fe92cdc25ae0f0322a36558c2ea2","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-12-26T15:44:48Z","title_canon_sha256":"02dec23caff75b8d0d6dcad309ce8dd179f81859e9e6d4f0d1e8154d4040e2db"},"schema_version":"1.0","source":{"id":"2112.13401","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.13401","created_at":"2026-07-05T03:43:53Z"},{"alias_kind":"arxiv_version","alias_value":"2112.13401v1","created_at":"2026-07-05T03:43:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.13401","created_at":"2026-07-05T03:43:53Z"},{"alias_kind":"pith_short_12","alias_value":"NCE3W2RYXPL5","created_at":"2026-07-05T03:43:53Z"},{"alias_kind":"pith_short_16","alias_value":"NCE3W2RYXPL5I26J","created_at":"2026-07-05T03:43:53Z"},{"alias_kind":"pith_short_8","alias_value":"NCE3W2RY","created_at":"2026-07-05T03:43:53Z"}],"graph_snapshots":[{"event_id":"sha256:3b9342cbb2092979c585f3807f2fc95f02f75c36ad2e37bbfc9348820cf8ec55","target":"graph","created_at":"2026-07-05T03:43:53Z","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/2112.13401/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a flat band superconductor, the charge carriers' group velocity vF is extremely slow, quenching their kinetic energy. The emergence of superconductivity thus appears paradoxical, as conventional BCS theory implies a vanishing coherence length, superfluid stiffness, and critical current. Here, using twisted bilayer graphene (tBLG), we explore the profound effect of vanishingly small vF in a Dirac superconducting flat band system Using Schwinger-limited non-linear transport studies, we demonstrate an extremely slow vF ~ 1000 m/s for filling fraction nu between -1/2 and -3/4 of the moire super","authors_text":"Chun Ning Lau, Fan Zhang, Haidong Tian, Kenji Watanabe, Marc W. Bockrath, Mohit Randeria, Patrick Cheung, Shi Che, Takashi Taniguchi, Tianyi Xu","cross_cats":["cond-mat.mes-hall","cond-mat.str-el"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-12-26T15:44:48Z","title":"Evidence for Flat Band Dirac Superconductor Originating from Quantum Geometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.13401","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":"sha256:5454527989b029ec70192d34c97dcfe483d93f237ba59d5b3a4fa29f1a70ab6b","target":"record","created_at":"2026-07-05T03:43:53Z","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":"ae78ee7b5995767784e1e657b29b6920bf50fe92cdc25ae0f0322a36558c2ea2","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-12-26T15:44:48Z","title_canon_sha256":"02dec23caff75b8d0d6dcad309ce8dd179f81859e9e6d4f0d1e8154d4040e2db"},"schema_version":"1.0","source":{"id":"2112.13401","kind":"arxiv","version":1}},"canonical_sha256":"6889bb6a38bbd7d46bc98f438f9583259fa68f4a16c717a4cb68ab34d1502ed6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6889bb6a38bbd7d46bc98f438f9583259fa68f4a16c717a4cb68ab34d1502ed6","first_computed_at":"2026-07-05T03:43:53.035044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:43:53.035044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lHvaXRfTAGsqBvOWZ0NFQLppAcUL2uExXpzXS4VDvjiKoVqK0z0oKpygCVynarjJlfl2JGvhoc5P+z+Afd6WBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:43:53.035415Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.13401","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5454527989b029ec70192d34c97dcfe483d93f237ba59d5b3a4fa29f1a70ab6b","sha256:3b9342cbb2092979c585f3807f2fc95f02f75c36ad2e37bbfc9348820cf8ec55"],"state_sha256":"3fa28d87eeb0321065dc4514b9cd32c6d6a359c43e6db2e1cf9d0ad4b818b41a"}