{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:LOQ7C36G3Y4XEOND5WFNEUC6KO","short_pith_number":"pith:LOQ7C36G","canonical_record":{"source":{"id":"2104.01015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-04-02T12:35:14Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"6abb964922e6cfe958c26f414eaf278f94f68246d66f74eb060ef0a90f34867b","abstract_canon_sha256":"9003cf16d9ba9efb90a59d894dc66c99cf62af92c33f3c7d7c46eb951013b14e"},"schema_version":"1.0"},"canonical_sha256":"5ba1f16fc6de397239a3ed8ad2505e53b55b56304d3e848e2859fbb0aa8b38ef","source":{"kind":"arxiv","id":"2104.01015","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.01015","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"2104.01015v2","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.01015","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"LOQ7C36G3Y4X","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"pith_short_16","alias_value":"LOQ7C36G3Y4XEOND","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"pith_short_8","alias_value":"LOQ7C36G","created_at":"2026-07-05T02:57:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:LOQ7C36G3Y4XEOND5WFNEUC6KO","target":"record","payload":{"canonical_record":{"source":{"id":"2104.01015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-04-02T12:35:14Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"6abb964922e6cfe958c26f414eaf278f94f68246d66f74eb060ef0a90f34867b","abstract_canon_sha256":"9003cf16d9ba9efb90a59d894dc66c99cf62af92c33f3c7d7c46eb951013b14e"},"schema_version":"1.0"},"canonical_sha256":"5ba1f16fc6de397239a3ed8ad2505e53b55b56304d3e848e2859fbb0aa8b38ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:57:44.969713Z","signature_b64":"xgMuieGpuHG1Cbi5/wOqZVSgwT7zMXavKRIQtEgMYpdKnW+SvgIl/i70wcps9iB+6WefqZEAneKJH3r/F0J/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ba1f16fc6de397239a3ed8ad2505e53b55b56304d3e848e2859fbb0aa8b38ef","last_reissued_at":"2026-07-05T02:57:44.969308Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:57:44.969308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.01015","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":"2026-07-05T02:57:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rOTum9wUH/kLWItyPV+pu25Sk/hZRdp1b17eK93VHiKnjZYbqFCuPR2ihKxWUAupEgB6z06QwLj2OnoOQRQ4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:26:38.669273Z"},"content_sha256":"bae7d35261dfda9b18aa4689040381c4a7e504e739e9512fbc791845b53c483d","schema_version":"1.0","event_id":"sha256:bae7d35261dfda9b18aa4689040381c4a7e504e739e9512fbc791845b53c483d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:LOQ7C36G3Y4XEOND5WFNEUC6KO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of the Charge Density Wave in the Kagome Metal CsV$_{3}$Sb$_{5}$ as Revealed by Optical Spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Hai-Hu Wen, Jiahao Hao, Xiaoxiang Zhou, Xinwei Fan, Yaomin Dai, Yongkai Li, Yugui Yao, Zhiwei Wang","submitted_at":"2021-04-02T12:35:14Z","abstract_excerpt":"We report on a detailed study of the optical properties of CsV$_{3}$Sb$_{5}$ at a large number of temperatures above and below the charge-density-wave (CDW) transition. Above the CDW transition, the low-frequency optical conductivity reveals two Drude components with distinct widths. An examination of the band structure allows us to ascribe the narrow Drude to multiple light and Dirac bands, and the broad Drude to the heavy bands near the $M$ points which form saddle points near the Fermi level. Upon entering the CDW state, the opening of the CDW gap is clearly observed. A large portion of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.01015","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/2104.01015/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":"2026-07-05T02:57:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RnLuVB1kOMhvdzURX8XYtWqfvWiYvtfQw751uMryRrSHw2HCsFQ1JF9l+76A4n1dM/THfyVZ5YlPWQnoTEfYDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:26:38.670187Z"},"content_sha256":"f356dd16245fe006c743b15d81d3f38b878eda5681ca5248c896f8f7125fdd50","schema_version":"1.0","event_id":"sha256:f356dd16245fe006c743b15d81d3f38b878eda5681ca5248c896f8f7125fdd50"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO/bundle.json","state_url":"https://pith.science/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO/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":"2026-08-15T05:26:38Z","links":{"resolver":"https://pith.science/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO","bundle":"https://pith.science/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO/bundle.json","state":"https://pith.science/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LOQ7C36G3Y4XEOND5WFNEUC6KO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:LOQ7C36G3Y4XEOND5WFNEUC6KO","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":"9003cf16d9ba9efb90a59d894dc66c99cf62af92c33f3c7d7c46eb951013b14e","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-04-02T12:35:14Z","title_canon_sha256":"6abb964922e6cfe958c26f414eaf278f94f68246d66f74eb060ef0a90f34867b"},"schema_version":"1.0","source":{"id":"2104.01015","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.01015","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"2104.01015v2","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.01015","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"LOQ7C36G3Y4X","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"pith_short_16","alias_value":"LOQ7C36G3Y4XEOND","created_at":"2026-07-05T02:57:44Z"},{"alias_kind":"pith_short_8","alias_value":"LOQ7C36G","created_at":"2026-07-05T02:57:44Z"}],"graph_snapshots":[{"event_id":"sha256:f356dd16245fe006c743b15d81d3f38b878eda5681ca5248c896f8f7125fdd50","target":"graph","created_at":"2026-07-05T02:57:44Z","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/2104.01015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on a detailed study of the optical properties of CsV$_{3}$Sb$_{5}$ at a large number of temperatures above and below the charge-density-wave (CDW) transition. Above the CDW transition, the low-frequency optical conductivity reveals two Drude components with distinct widths. An examination of the band structure allows us to ascribe the narrow Drude to multiple light and Dirac bands, and the broad Drude to the heavy bands near the $M$ points which form saddle points near the Fermi level. Upon entering the CDW state, the opening of the CDW gap is clearly observed. A large portion of the","authors_text":"Hai-Hu Wen, Jiahao Hao, Xiaoxiang Zhou, Xinwei Fan, Yaomin Dai, Yongkai Li, Yugui Yao, Zhiwei Wang","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-04-02T12:35:14Z","title":"Origin of the Charge Density Wave in the Kagome Metal CsV$_{3}$Sb$_{5}$ as Revealed by Optical Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.01015","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:bae7d35261dfda9b18aa4689040381c4a7e504e739e9512fbc791845b53c483d","target":"record","created_at":"2026-07-05T02:57:44Z","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":"9003cf16d9ba9efb90a59d894dc66c99cf62af92c33f3c7d7c46eb951013b14e","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-04-02T12:35:14Z","title_canon_sha256":"6abb964922e6cfe958c26f414eaf278f94f68246d66f74eb060ef0a90f34867b"},"schema_version":"1.0","source":{"id":"2104.01015","kind":"arxiv","version":2}},"canonical_sha256":"5ba1f16fc6de397239a3ed8ad2505e53b55b56304d3e848e2859fbb0aa8b38ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ba1f16fc6de397239a3ed8ad2505e53b55b56304d3e848e2859fbb0aa8b38ef","first_computed_at":"2026-07-05T02:57:44.969308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:57:44.969308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xgMuieGpuHG1Cbi5/wOqZVSgwT7zMXavKRIQtEgMYpdKnW+SvgIl/i70wcps9iB+6WefqZEAneKJH3r/F0J/Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:57:44.969713Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.01015","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bae7d35261dfda9b18aa4689040381c4a7e504e739e9512fbc791845b53c483d","sha256:f356dd16245fe006c743b15d81d3f38b878eda5681ca5248c896f8f7125fdd50"],"state_sha256":"0adf0fa16ddadcc345e17ad95af147bcc8ab7e4d945d5007ce11d5f30aec54c5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"luN/KQcxyNsdXBP9UQfNxPj4i3+Jg93mgaWf4UBM92ugWbQopffjUgnqXAjgDTBSFiQfK3Rt+QeF+Xa//tQWBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T05:26:38.725726Z","bundle_sha256":"558733e03e5d29a7dd265b832199e0d728502e42022df6e636d8ab028aa5170e"}}