{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:SBUDD5RML3R3EO2RM3IFBMNCHP","short_pith_number":"pith:SBUDD5RM","schema_version":"1.0","canonical_sha256":"906831f62c5ee3b23b5166d050b1a23bfb45d85681604b0533e1e2cec66f2bd7","source":{"kind":"arxiv","id":"1910.12439","version":1},"attestation_state":"computed","paper":{"title":"Ultrafast Spectroscopy of Bi2Se3 Topological Insulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. Sharma, M. Kumar (CSIR-NPL), N. Vashistha, P. Rani, P. Sharma, S. S. Islam (JMI), V.P.S. Awana (CSIR-NPL)","submitted_at":"2019-10-28T04:45:49Z","abstract_excerpt":"We investigate the ultrafast transient absorption spectrum of Bi2Se3 topological insulator. Bi2Se3 single crystal is grown through conventional solid-state reaction routevia self-flux method. The structural properties have been studied in terms of high-resolution Powder X-ray Diffraction (PXRD). Detailed Rietveld analysis of PXRD of the crystal showed that sample is crystallized in the rhombohedral crystal structure with a space group of R-3m, and the lattice parameters are a=b=4.14A and c=28.7010A. Scanning Electron Microscopy (SEM) result shows perfectly crystalline structure with layered ty"},"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":"1910.12439","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-10-28T04:45:49Z","cross_cats_sorted":[],"title_canon_sha256":"0eabe48166fe5f6dae989425fd0fe4a12c0eb62e7b45552c93ba662421c867ed","abstract_canon_sha256":"a2a6d1defdab51f429c99eba43e74d64bec7f1f6d4797402475847fb49b34149"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:04:05.186831Z","signature_b64":"KgI59CC+0jghYsvpvlzeYFF095Ky2GPGm0obGihWRpdFhLenFBpyJTJ00rcgi+9QnW9hLOsYcrIzRZpU9jnJDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"906831f62c5ee3b23b5166d050b1a23bfb45d85681604b0533e1e2cec66f2bd7","last_reissued_at":"2026-07-05T01:04:05.186344Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:04:05.186344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ultrafast Spectroscopy of Bi2Se3 Topological Insulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. Sharma, M. Kumar (CSIR-NPL), N. Vashistha, P. Rani, P. Sharma, S. S. Islam (JMI), V.P.S. Awana (CSIR-NPL)","submitted_at":"2019-10-28T04:45:49Z","abstract_excerpt":"We investigate the ultrafast transient absorption spectrum of Bi2Se3 topological insulator. Bi2Se3 single crystal is grown through conventional solid-state reaction routevia self-flux method. The structural properties have been studied in terms of high-resolution Powder X-ray Diffraction (PXRD). Detailed Rietveld analysis of PXRD of the crystal showed that sample is crystallized in the rhombohedral crystal structure with a space group of R-3m, and the lattice parameters are a=b=4.14A and c=28.7010A. Scanning Electron Microscopy (SEM) result shows perfectly crystalline structure with layered ty"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.12439","kind":"arxiv","version":1},"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/1910.12439/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":"1910.12439","created_at":"2026-07-05T01:04:05.186411+00:00"},{"alias_kind":"arxiv_version","alias_value":"1910.12439v1","created_at":"2026-07-05T01:04:05.186411+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.12439","created_at":"2026-07-05T01:04:05.186411+00:00"},{"alias_kind":"pith_short_12","alias_value":"SBUDD5RML3R3","created_at":"2026-07-05T01:04:05.186411+00:00"},{"alias_kind":"pith_short_16","alias_value":"SBUDD5RML3R3EO2R","created_at":"2026-07-05T01:04:05.186411+00:00"},{"alias_kind":"pith_short_8","alias_value":"SBUDD5RM","created_at":"2026-07-05T01:04:05.186411+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/SBUDD5RML3R3EO2RM3IFBMNCHP","json":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP.json","graph_json":"https://pith.science/api/pith-number/SBUDD5RML3R3EO2RM3IFBMNCHP/graph.json","events_json":"https://pith.science/api/pith-number/SBUDD5RML3R3EO2RM3IFBMNCHP/events.json","paper":"https://pith.science/paper/SBUDD5RM"},"agent_actions":{"view_html":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP","download_json":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP.json","view_paper":"https://pith.science/paper/SBUDD5RM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1910.12439&json=true","fetch_graph":"https://pith.science/api/pith-number/SBUDD5RML3R3EO2RM3IFBMNCHP/graph.json","fetch_events":"https://pith.science/api/pith-number/SBUDD5RML3R3EO2RM3IFBMNCHP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP/action/storage_attestation","attest_author":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP/action/author_attestation","sign_citation":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP/action/citation_signature","submit_replication":"https://pith.science/pith/SBUDD5RML3R3EO2RM3IFBMNCHP/action/replication_record"}},"created_at":"2026-07-05T01:04:05.186411+00:00","updated_at":"2026-07-05T01:04:05.186411+00:00"}