{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2HTCQTSWOERCVG4ORBLHXWIYED","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":"9e9a4cdb7745c56d063abf2a46122ead6dd542e1e764050825df8d6cc04475f1","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-13T03:06:29Z","title_canon_sha256":"7f8b196bff1fa0ee355cdf864332047fa5159721bb1990578e63b8072b074143"},"schema_version":"1.0","source":{"id":"1202.2610","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2610","created_at":"2026-05-18T04:02:26Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2610v1","created_at":"2026-05-18T04:02:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2610","created_at":"2026-05-18T04:02:26Z"},{"alias_kind":"pith_short_12","alias_value":"2HTCQTSWOERC","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2HTCQTSWOERCVG4O","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2HTCQTSW","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:0cec9d7dd60943441c5eebb424824effd49917144597290c75a4fa49d4e16ea1","target":"graph","created_at":"2026-05-18T04:02:26Z","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":"Anisotropic plasmon coupling in closely-spaced chains of Ag nanoparticles was visualized using the electron energy loss spectroscopy in a scanning transmission electron microscope. For dimers as the simplest chain, mapping the plasmon excitations with nanometers' spatial resolution and 0.27 eV energy resolution intuitively identified two coupling plasmons. The in-phase mode redshifted from the ultraviolet region as the inter-particle spacing was reduced, reaching the visible range at 2.7 eV. Calculations based on the discrete dipole approximation confirmed its optical activeness, where the lon","authors_text":"Changhui Xu, Chris Van Haesendonck, Fengqi Song, Guanghou Wang, Jianguo Wan, Longbing He, Min Han, Simon P. Ringer, Tingyu Wang, Xuefeng Wang, Zongwen Liu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-13T03:06:29Z","title":"Visualizing plasmon coupling in closely-spaced chains of Ag nanoparticles by electron energy loss spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2610","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:a463763c55725c316de1934872f225192140583955301909f1c58d23bab7d1ea","target":"record","created_at":"2026-05-18T04:02:26Z","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":"9e9a4cdb7745c56d063abf2a46122ead6dd542e1e764050825df8d6cc04475f1","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-13T03:06:29Z","title_canon_sha256":"7f8b196bff1fa0ee355cdf864332047fa5159721bb1990578e63b8072b074143"},"schema_version":"1.0","source":{"id":"1202.2610","kind":"arxiv","version":1}},"canonical_sha256":"d1e6284e5671222a9b8e88567bd91820d994be045f83d0cb902c747a8dacf583","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1e6284e5671222a9b8e88567bd91820d994be045f83d0cb902c747a8dacf583","first_computed_at":"2026-05-18T04:02:26.109650Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:02:26.109650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FOm8KJamm65tYAShxn6W2B0iQyWKtxTXu0wz459nLENCcARYqMQ5Ea1bb95UzSo/WPrUzWWu0LLwWiUCSBqcAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:02:26.110292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2610","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a463763c55725c316de1934872f225192140583955301909f1c58d23bab7d1ea","sha256:0cec9d7dd60943441c5eebb424824effd49917144597290c75a4fa49d4e16ea1"],"state_sha256":"20de32943374c765b78e98f7a80acff2ec9f62fe790834c52a15bc3cdf198d8c"}