{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GGPKQ5CB2HE664CQCYRCDRZKA7","short_pith_number":"pith:GGPKQ5CB","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"},"canonical_sha256":"319ea87441d1c9ef7050162221c72a07ccad35007b863989b96b13663c5daa29","source":{"kind":"arxiv","id":"2105.02638","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.02638","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"arxiv_version","alias_value":"2105.02638v2","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02638","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"pith_short_12","alias_value":"GGPKQ5CB2HE6","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"pith_short_16","alias_value":"GGPKQ5CB2HE664CQ","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"pith_short_8","alias_value":"GGPKQ5CB","created_at":"2026-07-05T03:18:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GGPKQ5CB2HE664CQCYRCDRZKA7","target":"record","payload":{"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"},"canonical_sha256":"319ea87441d1c9ef7050162221c72a07ccad35007b863989b96b13663c5daa29","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"},"source_kind":"arxiv","source_id":"2105.02638","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:18:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"10U7rjL/5JsWwnmT4BNQmtM67c3bx/1Y+fo0PMC+qIFxUsTxN/ZPJZlA53Mf+zUpj/vDR564eCKiM3puX86iCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:09:40.819008Z"},"content_sha256":"2e6e8f7b297720b1ae13a43d49166837a03604514ad6e07f72895e37712b6c6c","schema_version":"1.0","event_id":"sha256:2e6e8f7b297720b1ae13a43d49166837a03604514ad6e07f72895e37712b6c6c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GGPKQ5CB2HE664CQCYRCDRZKA7","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:18:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TiKI1hYJIb35gNdTDJNPlnkhE7uRCtPDwWFdG1Aamzbv2CTaQsE+vvkvLMl6aWMPhXLskdehWOkBLO1qJrs4Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:09:40.819850Z"},"content_sha256":"c69587e6b6623b745a839020a8c74bc2981002e2dccdc3ba4292158b1d45c8ae","schema_version":"1.0","event_id":"sha256:c69587e6b6623b745a839020a8c74bc2981002e2dccdc3ba4292158b1d45c8ae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/bundle.json","state_url":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/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":"2026-08-06T18:09:40Z","links":{"resolver":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7","bundle":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/bundle.json","state":"https://pith.science/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GGPKQ5CB2HE664CQCYRCDRZKA7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GGPKQ5CB2HE664CQCYRCDRZKA7","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":"2fbf5b489b4264ee520a046b98f6b70242a78833e1777f3df1dbb3f006068a6f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-05-06T13:15:51Z","title_canon_sha256":"e637b2b70759e5bcd0d46746cb9343fde86a16093e0d701f75db20426bc9eaf4"},"schema_version":"1.0","source":{"id":"2105.02638","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.02638","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"arxiv_version","alias_value":"2105.02638v2","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02638","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"pith_short_12","alias_value":"GGPKQ5CB2HE6","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"pith_short_16","alias_value":"GGPKQ5CB2HE664CQ","created_at":"2026-07-05T03:18:40Z"},{"alias_kind":"pith_short_8","alias_value":"GGPKQ5CB","created_at":"2026-07-05T03:18:40Z"}],"graph_snapshots":[{"event_id":"sha256:c69587e6b6623b745a839020a8c74bc2981002e2dccdc3ba4292158b1d45c8ae","target":"graph","created_at":"2026-07-05T03:18:40Z","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/2105.02638/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"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","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","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-05-06T13:15:51Z","title":"Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn$_3$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02638","kind":"arxiv","version":2},"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":"sha256:2e6e8f7b297720b1ae13a43d49166837a03604514ad6e07f72895e37712b6c6c","target":"record","created_at":"2026-07-05T03:18:40Z","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":"2fbf5b489b4264ee520a046b98f6b70242a78833e1777f3df1dbb3f006068a6f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-05-06T13:15:51Z","title_canon_sha256":"e637b2b70759e5bcd0d46746cb9343fde86a16093e0d701f75db20426bc9eaf4"},"schema_version":"1.0","source":{"id":"2105.02638","kind":"arxiv","version":2}},"canonical_sha256":"319ea87441d1c9ef7050162221c72a07ccad35007b863989b96b13663c5daa29","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"319ea87441d1c9ef7050162221c72a07ccad35007b863989b96b13663c5daa29","first_computed_at":"2026-07-05T03:18:40.678574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:18:40.678574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XlOgMOcfYJstFymzthXn601TFU4Cz5+UTVfE3fA516p3R5bpsv4Lni3xjKROS/IwiHEcLvbusXVZAHBSRSRfAw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:18:40.679061Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.02638","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e6e8f7b297720b1ae13a43d49166837a03604514ad6e07f72895e37712b6c6c","sha256:c69587e6b6623b745a839020a8c74bc2981002e2dccdc3ba4292158b1d45c8ae"],"state_sha256":"cabfa104221585c60d8028860eb23078fb7aa3ca1f0be9a4fa58e8edc4f78afc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FBOgoPsYzkHE1HbX1ca4iV+peXruT/LW0vOHq/AQ7auG0KGfzBU/BJzdHABmfbdrP9+6ESUXgy0Srqdj7P4RBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T18:09:40.825052Z","bundle_sha256":"8ecc1c17e8371119259ed5f91ee7a8751386479efedf8238ac7135f75b34b41a"}}