{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:OHRNLYBYZY63MA2DORGH2RCYUB","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":"5f25ba002f98926d9d55cfb6cb642c6f7ceba5a80defd688f81ccdac7abd51ba","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-12-12T11:48:12Z","title_canon_sha256":"24e3b9131945b1f7310d2a7a6a236fff43c77484cfa7662554d32915f758320f"},"schema_version":"1.0","source":{"id":"1212.2782","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2782","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2782v1","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2782","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"pith_short_12","alias_value":"OHRNLYBYZY63","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"OHRNLYBYZY63MA2D","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"OHRNLYBY","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:8379272808556005fa93433de13bab476d36ebe0bc92b234d9e8688d29b5b1ef","target":"graph","created_at":"2026-05-18T01:52:39Z","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":"The long-range action of surface-enhanced Raman scattering (SERS) is probed via distance-dependent measurements of molecular Raman spectra. To this end, identical SERS substrates composed of irregular silver nanoisland arrays were covered by dielectric spacer layers with variable thickness, and the strength of the SERS signal produced from analyte molecules deposited on top of the structure was analyzed. The obtained distance dependence of the signal strength exhibited a shelf-like behavior up to 30 nm away from the enhancing surface and then rapidly decreased further away. Thus, the observed ","authors_text":"A. B. Van'kov, I. V. Kukushkin, V. I. Kukushkin","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-12-12T11:48:12Z","title":"Long-range nature of surface-enhanced Raman scattering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2782","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:a797c27779d7420aefab082cb2349cf37cb5670b6b4c4f9526d4e60bbc0a7ba7","target":"record","created_at":"2026-05-18T01:52:39Z","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":"5f25ba002f98926d9d55cfb6cb642c6f7ceba5a80defd688f81ccdac7abd51ba","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-12-12T11:48:12Z","title_canon_sha256":"24e3b9131945b1f7310d2a7a6a236fff43c77484cfa7662554d32915f758320f"},"schema_version":"1.0","source":{"id":"1212.2782","kind":"arxiv","version":1}},"canonical_sha256":"71e2d5e038ce3db60343744c7d4458a0508769a608f9f36285657d4206219ce0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71e2d5e038ce3db60343744c7d4458a0508769a608f9f36285657d4206219ce0","first_computed_at":"2026-05-18T01:52:39.605780Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:39.605780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c6sypGuiPW6g4IkL5DsW6kijnMWfTcxuCgRo214F5sctUdGYMWZP4URUsVoFLGCKt2BHcwwBui2Beltn8fq+AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:39.606194Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.2782","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a797c27779d7420aefab082cb2349cf37cb5670b6b4c4f9526d4e60bbc0a7ba7","sha256:8379272808556005fa93433de13bab476d36ebe0bc92b234d9e8688d29b5b1ef"],"state_sha256":"66902ee35564a7a4bca828084a99785838ffe7459dfa13e6b7df5e390534ea17"}