{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2GF4FASNZS4WMYDHUQUJCG26GL","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":"2ef5136db57e490fd45a2f79cda21b4abb050303f8dcd19980e1da947ab73381","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-08-31T12:41:08Z","title_canon_sha256":"6ac422d1b1983a88e694f5288bfd30f8841d1c35e38a29a70481ec5c766f340f"},"schema_version":"1.0","source":{"id":"1508.07797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.07797","created_at":"2026-05-18T01:34:31Z"},{"alias_kind":"arxiv_version","alias_value":"1508.07797v1","created_at":"2026-05-18T01:34:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.07797","created_at":"2026-05-18T01:34:31Z"},{"alias_kind":"pith_short_12","alias_value":"2GF4FASNZS4W","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2GF4FASNZS4WMYDH","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2GF4FASN","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:d74ef43cab37546e9936c31eefb2fa51850fddb27e96de6798e8f38230bdfbfe","target":"graph","created_at":"2026-05-18T01:34:31Z","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"},"paper":{"abstract_excerpt":"Raman forbidden modes and surface defect related Raman features in SnO_2 nanostructures carry information about disorder and surface defects which strongly influence important technological applications like catalysis and sensing. Due to the weak intensities of these peaks, it is difficult to identify these features by using conventional Raman spectroscopy. Tip enhanced Raman spectroscopy (TERS) studies conducted on SnO_2 nanoparticles (NPs) of size 4 and 25 nm have offered significant insights of prevalent defects and disorders. Along with one order enhancement in symmetry allowed Raman modes","authors_text":"A. Das, A. K. Sivadasan, A. K. Tyagi, Sandip Dhara, Venkataramana Bonu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-08-31T12:41:08Z","title":"Invoking forbidden modes in SnO_2 nanoparticles using tip enhanced Raman spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.07797","kind":"arxiv","version":1},"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":"sha256:5a5f3e9056152a6348fe17184a2b7c6f6a57400abbb07b29eb8603a6e1844183","target":"record","created_at":"2026-05-18T01:34:31Z","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":"2ef5136db57e490fd45a2f79cda21b4abb050303f8dcd19980e1da947ab73381","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-08-31T12:41:08Z","title_canon_sha256":"6ac422d1b1983a88e694f5288bfd30f8841d1c35e38a29a70481ec5c766f340f"},"schema_version":"1.0","source":{"id":"1508.07797","kind":"arxiv","version":1}},"canonical_sha256":"d18bc2824dccb9666067a428911b5e32c15912e85269bb59d626989e37fc89c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d18bc2824dccb9666067a428911b5e32c15912e85269bb59d626989e37fc89c7","first_computed_at":"2026-05-18T01:34:31.446075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:31.446075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AZFdwCq3wpofrqEA4YyoOtYDcnsqxGmKck0doxOAKqOw8OOiJiJi6X/NgUnkLW8dVv4ke7t2JtKpiwCYUoiDCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:31.446655Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.07797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a5f3e9056152a6348fe17184a2b7c6f6a57400abbb07b29eb8603a6e1844183","sha256:d74ef43cab37546e9936c31eefb2fa51850fddb27e96de6798e8f38230bdfbfe"],"state_sha256":"3710c88553a543c642dfcc3de8099cb3ee9a034f125b4ad0b6c25f166991b9dd"}