{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:GGPKQ5CB2HE664CQCYRCDRZKA7","short_pith_number":"pith:GGPKQ5CB","schema_version":"1.0","canonical_sha256":"319ea87441d1c9ef7050162221c72a07ccad35007b863989b96b13663c5daa29","source":{"kind":"arxiv","id":"2105.02638","version":2},"attestation_state":"computed","paper":{"title":"Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn$_3$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"D. W. Shen, G. N. Zhang, J. S. Liu, Soohyun Cho, W. W. Zhao, W. Xia, X. B. Shi, X. L. Lu, Y. C. Yang, Y. F. Guo, Z. C. Jiang, Z. H. Liu, Z. Huang, Z. T. Liu","submitted_at":"2021-05-06T13:15:51Z","abstract_excerpt":"The signatures of topological superconductivity (TSC) in the superconducting materials with topological nontrivial states prompt intensive researches recently. Utilizing high-resolution angle-resolved photoemission spectroscopy and first-principles calculations, we demonstrate multiple Dirac fermions and surface states in superconductor BaSn$_3$ with a critical transition temperature of about 4.4 K. We predict and then unveil the existence of two pairs of type-\\uppercase\\expandafter{\\romannumeral1} topological Dirac fermions residing on the rotational axis. Type-\\uppercase\\expandafter{\\romannu"},"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":"2105.02638","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-05-06T13:15:51Z","cross_cats_sorted":[],"title_canon_sha256":"e637b2b70759e5bcd0d46746cb9343fde86a16093e0d701f75db20426bc9eaf4","abstract_canon_sha256":"2fbf5b489b4264ee520a046b98f6b70242a78833e1777f3df1dbb3f006068a6f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:18:40.679061Z","signature_b64":"XlOgMOcfYJstFymzthXn601TFU4Cz5+UTVfE3fA516p3R5bpsv4Lni3xjKROS/IwiHEcLvbusXVZAHBSRSRfAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"319ea87441d1c9ef7050162221c72a07ccad35007b863989b96b13663c5daa29","last_reissued_at":"2026-07-05T03:18:40.678574Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:18:40.678574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn$_3$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"D. W. Shen, G. N. Zhang, J. S. Liu, Soohyun Cho, W. W. Zhao, W. Xia, X. B. Shi, X. L. Lu, Y. C. Yang, Y. F. Guo, Z. C. Jiang, Z. H. Liu, Z. Huang, Z. T. Liu","submitted_at":"2021-05-06T13:15:51Z","abstract_excerpt":"The signatures of topological superconductivity (TSC) in the superconducting materials with topological nontrivial states prompt intensive researches recently. Utilizing high-resolution angle-resolved photoemission spectroscopy and first-principles calculations, we demonstrate multiple Dirac fermions and surface states in superconductor BaSn$_3$ with a critical transition temperature of about 4.4 K. We predict and then unveil the existence of two pairs of type-\\uppercase\\expandafter{\\romannumeral1} topological Dirac fermions residing on the rotational axis. Type-\\uppercase\\expandafter{\\romannu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02638","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.02638/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2105.02638","created_at":"2026-07-05T03:18:40.678631+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.02638v2","created_at":"2026-07-05T03:18:40.678631+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02638","created_at":"2026-07-05T03:18:40.678631+00:00"},{"alias_kind":"pith_short_12","alias_value":"GGPKQ5CB2HE6","created_at":"2026-07-05T03:18:40.678631+00:00"},{"alias_kind":"pith_short_16","alias_value":"GGPKQ5CB2HE664CQ","created_at":"2026-07-05T03:18:40.678631+00:00"},{"alias_kind":"pith_short_8","alias_value":"GGPKQ5CB","created_at":"2026-07-05T03:18:40.678631+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/GGPKQ5CB2HE664CQCYRCDRZKA7","json":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7.json","graph_json":"https://pith.science/api/pith-number/GGPKQ5CB2HE664CQCYRCDRZKA7/graph.json","events_json":"https://pith.science/api/pith-number/GGPKQ5CB2HE664CQCYRCDRZKA7/events.json","paper":"https://pith.science/paper/GGPKQ5CB"},"agent_actions":{"view_html":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7","download_json":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7.json","view_paper":"https://pith.science/paper/GGPKQ5CB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.02638&json=true","fetch_graph":"https://pith.science/api/pith-number/GGPKQ5CB2HE664CQCYRCDRZKA7/graph.json","fetch_events":"https://pith.science/api/pith-number/GGPKQ5CB2HE664CQCYRCDRZKA7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/action/storage_attestation","attest_author":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/action/author_attestation","sign_citation":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/action/citation_signature","submit_replication":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/action/replication_record"}},"created_at":"2026-07-05T03:18:40.678631+00:00","updated_at":"2026-07-05T03:18:40.678631+00:00"}