{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:TKPKTGOH67REXOSMTHC2ASUDBO","short_pith_number":"pith:TKPKTGOH","canonical_record":{"source":{"id":"2102.04821","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-02-09T13:42:59Z","cross_cats_sorted":[],"title_canon_sha256":"114c63fe38ab7c67c93385a8eb1d4e5318627cd2c8ef11ecd13abedc5cdfceeb","abstract_canon_sha256":"c685ec7f970d44e8204b4bb2122e104a22edccabaada7b313a4681c5e7bf1043"},"schema_version":"1.0"},"canonical_sha256":"9a9ea999c7f7e24bba4c99c5a04a830badbc860a507f933de61089335b70cbf6","source":{"kind":"arxiv","id":"2102.04821","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.04821","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"2102.04821v2","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.04821","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"TKPKTGOH67RE","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_16","alias_value":"TKPKTGOH67REXOSM","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_8","alias_value":"TKPKTGOH","created_at":"2026-07-05T02:53:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:TKPKTGOH67REXOSMTHC2ASUDBO","target":"record","payload":{"canonical_record":{"source":{"id":"2102.04821","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-02-09T13:42:59Z","cross_cats_sorted":[],"title_canon_sha256":"114c63fe38ab7c67c93385a8eb1d4e5318627cd2c8ef11ecd13abedc5cdfceeb","abstract_canon_sha256":"c685ec7f970d44e8204b4bb2122e104a22edccabaada7b313a4681c5e7bf1043"},"schema_version":"1.0"},"canonical_sha256":"9a9ea999c7f7e24bba4c99c5a04a830badbc860a507f933de61089335b70cbf6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:53:35.584416Z","signature_b64":"VkIqtmEJLSSAe/ELQit4R3b1dIgeEzAsfZbg94GtGUUcknahtoS8eS9e4v6hCsemTQR08z3wKtya1ejp/hqJCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a9ea999c7f7e24bba4c99c5a04a830badbc860a507f933de61089335b70cbf6","last_reissued_at":"2026-07-05T02:53:35.583904Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:53:35.583904Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.04821","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":"2026-07-05T02:53:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nvk/+TMalOKNGqFZ0goi3J9AFIIPTlHhSjMWj8ElUrviQpcnnuP8k3jJg8lF/zodXbznVbetn+1n8ebgfRffCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T05:34:16.204177Z"},"content_sha256":"5dd8ea07d5ddb797b358871f95cd0f455f869f905ac420118f9acba0d9a3579d","schema_version":"1.0","event_id":"sha256:5dd8ea07d5ddb797b358871f95cd0f455f869f905ac420118f9acba0d9a3579d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:TKPKTGOH67REXOSMTHC2ASUDBO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing charge density wave phases and the Mott transition in $1T$-TaS$_2$ by inelastic light scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Baum, A. \\v{S}olaji\\'c, C. Petrovic, Ge He, J. Bekaert, J. Pe\\v{s}i\\'c, M. V. Milo\\v{s}evi\\'c, N. Lazarevi\\'c, R. Hackl, S. {\\DJ}ur{\\dj}i\\'c Mijin, Y. Liu, Z. V. Popovi\\'c","submitted_at":"2021-02-09T13:42:59Z","abstract_excerpt":"We present a polarization-resolved, high-resolution Raman scattering study of the three consecutive charge density wave (CDW) regimes in $1T$-TaS$_2$ single crystals, supported by \\textit{ab initio} calculations. Our analysis of the spectra within the low-temperature commensurate (C-CDW) regime shows $\\mathrm{P3}$ symmetry of the system, thus excluding the previously proposed triclinic stacking of the \"star-of-David\" structure, and promoting trigonal or hexagonal stacking instead. The spectra of the high-temperature incommensurate (IC-CDW) phase directly project the phonon density of states du"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.04821","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/2102.04821/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":"2026-07-05T02:53:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vAEyH0Y458vG2aO/1j9ie7zjOHvwPqyVkSe36v1YH4kHHeWo/D4Zw3nS316P39cxAbtj7IO/oSSyov32/PZeAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T05:34:16.204576Z"},"content_sha256":"aafdfe6d142bafe3d4c276bdf89431b5f32f1a054aa4114812c2bfdd19fb2dc0","schema_version":"1.0","event_id":"sha256:aafdfe6d142bafe3d4c276bdf89431b5f32f1a054aa4114812c2bfdd19fb2dc0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TKPKTGOH67REXOSMTHC2ASUDBO/bundle.json","state_url":"https://pith.science/pith/TKPKTGOH67REXOSMTHC2ASUDBO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TKPKTGOH67REXOSMTHC2ASUDBO/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":"2026-07-22T05:34:16Z","links":{"resolver":"https://pith.science/pith/TKPKTGOH67REXOSMTHC2ASUDBO","bundle":"https://pith.science/pith/TKPKTGOH67REXOSMTHC2ASUDBO/bundle.json","state":"https://pith.science/pith/TKPKTGOH67REXOSMTHC2ASUDBO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TKPKTGOH67REXOSMTHC2ASUDBO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:TKPKTGOH67REXOSMTHC2ASUDBO","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":"c685ec7f970d44e8204b4bb2122e104a22edccabaada7b313a4681c5e7bf1043","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-02-09T13:42:59Z","title_canon_sha256":"114c63fe38ab7c67c93385a8eb1d4e5318627cd2c8ef11ecd13abedc5cdfceeb"},"schema_version":"1.0","source":{"id":"2102.04821","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.04821","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"2102.04821v2","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.04821","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"TKPKTGOH67RE","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_16","alias_value":"TKPKTGOH67REXOSM","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_8","alias_value":"TKPKTGOH","created_at":"2026-07-05T02:53:35Z"}],"graph_snapshots":[{"event_id":"sha256:aafdfe6d142bafe3d4c276bdf89431b5f32f1a054aa4114812c2bfdd19fb2dc0","target":"graph","created_at":"2026-07-05T02:53:35Z","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/2102.04821/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a polarization-resolved, high-resolution Raman scattering study of the three consecutive charge density wave (CDW) regimes in $1T$-TaS$_2$ single crystals, supported by \\textit{ab initio} calculations. Our analysis of the spectra within the low-temperature commensurate (C-CDW) regime shows $\\mathrm{P3}$ symmetry of the system, thus excluding the previously proposed triclinic stacking of the \"star-of-David\" structure, and promoting trigonal or hexagonal stacking instead. The spectra of the high-temperature incommensurate (IC-CDW) phase directly project the phonon density of states du","authors_text":"A. Baum, A. \\v{S}olaji\\'c, C. Petrovic, Ge He, J. Bekaert, J. Pe\\v{s}i\\'c, M. V. Milo\\v{s}evi\\'c, N. Lazarevi\\'c, R. Hackl, S. {\\DJ}ur{\\dj}i\\'c Mijin, Y. Liu, Z. V. Popovi\\'c","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-02-09T13:42:59Z","title":"Probing charge density wave phases and the Mott transition in $1T$-TaS$_2$ by inelastic light scattering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.04821","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":"sha256:5dd8ea07d5ddb797b358871f95cd0f455f869f905ac420118f9acba0d9a3579d","target":"record","created_at":"2026-07-05T02:53:35Z","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":"c685ec7f970d44e8204b4bb2122e104a22edccabaada7b313a4681c5e7bf1043","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-02-09T13:42:59Z","title_canon_sha256":"114c63fe38ab7c67c93385a8eb1d4e5318627cd2c8ef11ecd13abedc5cdfceeb"},"schema_version":"1.0","source":{"id":"2102.04821","kind":"arxiv","version":2}},"canonical_sha256":"9a9ea999c7f7e24bba4c99c5a04a830badbc860a507f933de61089335b70cbf6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a9ea999c7f7e24bba4c99c5a04a830badbc860a507f933de61089335b70cbf6","first_computed_at":"2026-07-05T02:53:35.583904Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:53:35.583904Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VkIqtmEJLSSAe/ELQit4R3b1dIgeEzAsfZbg94GtGUUcknahtoS8eS9e4v6hCsemTQR08z3wKtya1ejp/hqJCw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:53:35.584416Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.04821","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5dd8ea07d5ddb797b358871f95cd0f455f869f905ac420118f9acba0d9a3579d","sha256:aafdfe6d142bafe3d4c276bdf89431b5f32f1a054aa4114812c2bfdd19fb2dc0"],"state_sha256":"736bdf90aeaa88d9a16b7074af5f6ff8771eade1ed1d533668819d08d078d71a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0cTs5ZObXotXBRkbCOczgvdSmfcXjD+uyEN3ZPlFErP42Q60Q9NLuDF3bbHAaQCefLEzP2A5T4WqRb4ZPpvRCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T05:34:16.207142Z","bundle_sha256":"84f79afa687641f6b17a1d55449d703b45e223ca1281d2322efd708a9016f81c"}}