{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NICVQAQRDMLG4RA255WORVYEOL","short_pith_number":"pith:NICVQAQR","canonical_record":{"source":{"id":"1712.05147","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-12-14T10:13:10Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"b568c95e27f3b0d1b657bd17485657f8de59dafd6cd250ef37d1aa87b8efeb76","abstract_canon_sha256":"e6534e9eebd2901033e4adfadd6d1dcfa3933dfe1c8cd00720a152a0645be877"},"schema_version":"1.0"},"canonical_sha256":"6a055802111b166e441aef6ce8d70472cc47381dda96402d46c93f5a6399875a","source":{"kind":"arxiv","id":"1712.05147","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.05147","created_at":"2026-05-18T00:03:37Z"},{"alias_kind":"arxiv_version","alias_value":"1712.05147v1","created_at":"2026-05-18T00:03:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.05147","created_at":"2026-05-18T00:03:37Z"},{"alias_kind":"pith_short_12","alias_value":"NICVQAQRDMLG","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NICVQAQRDMLG4RA2","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NICVQAQR","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NICVQAQRDMLG4RA255WORVYEOL","target":"record","payload":{"canonical_record":{"source":{"id":"1712.05147","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-12-14T10:13:10Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"b568c95e27f3b0d1b657bd17485657f8de59dafd6cd250ef37d1aa87b8efeb76","abstract_canon_sha256":"e6534e9eebd2901033e4adfadd6d1dcfa3933dfe1c8cd00720a152a0645be877"},"schema_version":"1.0"},"canonical_sha256":"6a055802111b166e441aef6ce8d70472cc47381dda96402d46c93f5a6399875a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:37.148299Z","signature_b64":"zwwK7UBi4X7KLCU2IcgIHAgOPrmM92wXtnXP0MAqS+kTUvr99FnbguokTbnJN1OCyEtFz7VTTpBzC/9iD6ikCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6a055802111b166e441aef6ce8d70472cc47381dda96402d46c93f5a6399875a","last_reissued_at":"2026-05-18T00:03:37.147762Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:37.147762Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.05147","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:03:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MOOCpdVuqn8cyM9JtR2gd15LlKHgZ8z5S2tLfyiS9W7euZ48QaE9oxGEiQqgdGEktl2kPKyFRWtCXca9D1VQDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:00:35.458473Z"},"content_sha256":"9a44698d1d791df6ff6eb35b689ff77df8cb032f5379f559e2faedaebac11176","schema_version":"1.0","event_id":"sha256:9a44698d1d791df6ff6eb35b689ff77df8cb032f5379f559e2faedaebac11176"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NICVQAQRDMLG4RA255WORVYEOL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum spill out in few-nanometer metal gaps: Effect on gap plasmons and reflectance from ultrasharp groove arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Enok J. H Skj{\\o}lstrup, Thomas G. Pedersen, Thomas S{\\o}ndergaard","submitted_at":"2017-12-14T10:13:10Z","abstract_excerpt":"Plasmons in ultranarrow metal gaps are highly sensitive to the electron density profile at the metal surfaces. Using a fully quantum mechanical approach, we study the effects of electron spill-out on gap plasmons and reflectance from ultrasharp metal grooves. We demonstrate that the mode index of ultranarrow gap plasmons converges to the bulk refractive index in the limit of vanishing gap and, thereby, rectify the unphysical divergence found in classical models. Surprisingly, spill-out also significantly increases the plasmonic absorption for few-nanometer gaps and lowers the reflectance from "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.05147","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":""},"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":"2026-05-18T00:03:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sxryw61UGLv6KKKnIXkDq5e1Bsi+nSlGTTjQRQ7qwWUZ69LBW90HwP0O16mlp13HTz/8V1mvUUWqYbMCW4dVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:00:35.458827Z"},"content_sha256":"dde909d6aeae62519d7c37debe1566edd116b1be631fe6b6f1b27f28379a5c11","schema_version":"1.0","event_id":"sha256:dde909d6aeae62519d7c37debe1566edd116b1be631fe6b6f1b27f28379a5c11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NICVQAQRDMLG4RA255WORVYEOL/bundle.json","state_url":"https://pith.science/pith/NICVQAQRDMLG4RA255WORVYEOL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NICVQAQRDMLG4RA255WORVYEOL/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":"2026-06-03T01:00:35Z","links":{"resolver":"https://pith.science/pith/NICVQAQRDMLG4RA255WORVYEOL","bundle":"https://pith.science/pith/NICVQAQRDMLG4RA255WORVYEOL/bundle.json","state":"https://pith.science/pith/NICVQAQRDMLG4RA255WORVYEOL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NICVQAQRDMLG4RA255WORVYEOL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NICVQAQRDMLG4RA255WORVYEOL","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":"e6534e9eebd2901033e4adfadd6d1dcfa3933dfe1c8cd00720a152a0645be877","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-12-14T10:13:10Z","title_canon_sha256":"b568c95e27f3b0d1b657bd17485657f8de59dafd6cd250ef37d1aa87b8efeb76"},"schema_version":"1.0","source":{"id":"1712.05147","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.05147","created_at":"2026-05-18T00:03:37Z"},{"alias_kind":"arxiv_version","alias_value":"1712.05147v1","created_at":"2026-05-18T00:03:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.05147","created_at":"2026-05-18T00:03:37Z"},{"alias_kind":"pith_short_12","alias_value":"NICVQAQRDMLG","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NICVQAQRDMLG4RA2","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NICVQAQR","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:dde909d6aeae62519d7c37debe1566edd116b1be631fe6b6f1b27f28379a5c11","target":"graph","created_at":"2026-05-18T00:03:37Z","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":"Plasmons in ultranarrow metal gaps are highly sensitive to the electron density profile at the metal surfaces. Using a fully quantum mechanical approach, we study the effects of electron spill-out on gap plasmons and reflectance from ultrasharp metal grooves. We demonstrate that the mode index of ultranarrow gap plasmons converges to the bulk refractive index in the limit of vanishing gap and, thereby, rectify the unphysical divergence found in classical models. Surprisingly, spill-out also significantly increases the plasmonic absorption for few-nanometer gaps and lowers the reflectance from ","authors_text":"Enok J. H Skj{\\o}lstrup, Thomas G. Pedersen, Thomas S{\\o}ndergaard","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-12-14T10:13:10Z","title":"Quantum spill out in few-nanometer metal gaps: Effect on gap plasmons and reflectance from ultrasharp groove arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.05147","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":"sha256:9a44698d1d791df6ff6eb35b689ff77df8cb032f5379f559e2faedaebac11176","target":"record","created_at":"2026-05-18T00:03:37Z","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":"e6534e9eebd2901033e4adfadd6d1dcfa3933dfe1c8cd00720a152a0645be877","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-12-14T10:13:10Z","title_canon_sha256":"b568c95e27f3b0d1b657bd17485657f8de59dafd6cd250ef37d1aa87b8efeb76"},"schema_version":"1.0","source":{"id":"1712.05147","kind":"arxiv","version":1}},"canonical_sha256":"6a055802111b166e441aef6ce8d70472cc47381dda96402d46c93f5a6399875a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6a055802111b166e441aef6ce8d70472cc47381dda96402d46c93f5a6399875a","first_computed_at":"2026-05-18T00:03:37.147762Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:37.147762Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zwwK7UBi4X7KLCU2IcgIHAgOPrmM92wXtnXP0MAqS+kTUvr99FnbguokTbnJN1OCyEtFz7VTTpBzC/9iD6ikCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:37.148299Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.05147","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a44698d1d791df6ff6eb35b689ff77df8cb032f5379f559e2faedaebac11176","sha256:dde909d6aeae62519d7c37debe1566edd116b1be631fe6b6f1b27f28379a5c11"],"state_sha256":"78190924b61c79bcd0261f6c6b5615c0ab23845ac8d4185134c51a6b8db9c756"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kdurVBknz8/0kLcdpvgjegnKY3gD9QGFq+Je9PEkjiFHoKgiUJXXtjyok6eksMjckD5aRwxQB/nmyrzFlWf6Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T01:00:35.460773Z","bundle_sha256":"dd7209cdf6e68c8eda6554f2714e64a93aa888f3fb42d214204e6eda56784f68"}}