{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:VBKSITGDKSV4N7DZNGK45L4YOG","short_pith_number":"pith:VBKSITGD","canonical_record":{"source":{"id":"1109.5101","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-09-23T14:58:18Z","cross_cats_sorted":[],"title_canon_sha256":"15a5cf7f2e02ff494317f9d26f03310f8a4483a71886570b742c6c6c1c69af56","abstract_canon_sha256":"120e43119104c7d2f8a491a20bedef1774f2736d227d16ad8d2a92f66fa07371"},"schema_version":"1.0"},"canonical_sha256":"a855244cc354abc6fc796995ceaf9871808f3b30b0b6f3836be53fb6305d417a","source":{"kind":"arxiv","id":"1109.5101","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.5101","created_at":"2026-05-18T04:12:21Z"},{"alias_kind":"arxiv_version","alias_value":"1109.5101v1","created_at":"2026-05-18T04:12:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.5101","created_at":"2026-05-18T04:12:21Z"},{"alias_kind":"pith_short_12","alias_value":"VBKSITGDKSV4","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"VBKSITGDKSV4N7DZ","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"VBKSITGD","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:VBKSITGDKSV4N7DZNGK45L4YOG","target":"record","payload":{"canonical_record":{"source":{"id":"1109.5101","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-09-23T14:58:18Z","cross_cats_sorted":[],"title_canon_sha256":"15a5cf7f2e02ff494317f9d26f03310f8a4483a71886570b742c6c6c1c69af56","abstract_canon_sha256":"120e43119104c7d2f8a491a20bedef1774f2736d227d16ad8d2a92f66fa07371"},"schema_version":"1.0"},"canonical_sha256":"a855244cc354abc6fc796995ceaf9871808f3b30b0b6f3836be53fb6305d417a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:21.698525Z","signature_b64":"TOswA28i0Hg0nWfJ3MJoKTnsje8F1xn5VOcYf3q/mVfMbFaSkJioYn+gNR9HS6PO9dyWO026Hjkn2uFTKzMTBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a855244cc354abc6fc796995ceaf9871808f3b30b0b6f3836be53fb6305d417a","last_reissued_at":"2026-05-18T04:12:21.697790Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:21.697790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.5101","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":"2026-05-18T04:12:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O16eHIvncVLqC6g5OKz3buVE6iHV/Q+H/q6dmaBRi+odYOECeigKIw5OvpqKKn2pPqyvmM3EVbzCSCRMnvdTCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T13:27:33.702789Z"},"content_sha256":"9922f8f709e829082c92e34f7c3a591af3c936d6c29d96b8db4d193d2383345b","schema_version":"1.0","event_id":"sha256:9922f8f709e829082c92e34f7c3a591af3c936d6c29d96b8db4d193d2383345b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:VBKSITGDKSV4N7DZNGK45L4YOG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Restoring of optical resonances in subwavelength hyperbolic etalons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alessandro Ciattoni, Elisa Spinozzi","submitted_at":"2011-09-23T14:58:18Z","abstract_excerpt":"We give a solution to the fundamental problem of restoring optical resonances in deep subwavelength structures by resorting to indefinite metamaterials. We prove that a nanometric thick hyperbolic slab with very small permittivities exhibits etalon resonances and provides high-contrast optical angular filtering. This is possible since the hyperbolic dispersion allows the vacuum radiation to couple with medium plane waves with longitudinal wavenumbers large enough to yield optical standing waves within the nanometric slab thickness. Our findings can form the basis of a novel way for shrinking o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5101","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":"2026-05-18T04:12:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pX0L9LUGNN4ROskOzIdj68cnMMnYGfQ4VoklOKEBwul7Q6Wk6h1uKnKKKiRH7XQVeWIn9dRTdTVzqrIEjZMABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T13:27:33.703138Z"},"content_sha256":"1a7c9d4a09c7a88f1d11ee6c1071e4a8819cfb0bae60ac5cfc8289cbcd7102e1","schema_version":"1.0","event_id":"sha256:1a7c9d4a09c7a88f1d11ee6c1071e4a8819cfb0bae60ac5cfc8289cbcd7102e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VBKSITGDKSV4N7DZNGK45L4YOG/bundle.json","state_url":"https://pith.science/pith/VBKSITGDKSV4N7DZNGK45L4YOG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VBKSITGDKSV4N7DZNGK45L4YOG/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":"2026-06-22T13:27:33Z","links":{"resolver":"https://pith.science/pith/VBKSITGDKSV4N7DZNGK45L4YOG","bundle":"https://pith.science/pith/VBKSITGDKSV4N7DZNGK45L4YOG/bundle.json","state":"https://pith.science/pith/VBKSITGDKSV4N7DZNGK45L4YOG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VBKSITGDKSV4N7DZNGK45L4YOG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:VBKSITGDKSV4N7DZNGK45L4YOG","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":"120e43119104c7d2f8a491a20bedef1774f2736d227d16ad8d2a92f66fa07371","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-09-23T14:58:18Z","title_canon_sha256":"15a5cf7f2e02ff494317f9d26f03310f8a4483a71886570b742c6c6c1c69af56"},"schema_version":"1.0","source":{"id":"1109.5101","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.5101","created_at":"2026-05-18T04:12:21Z"},{"alias_kind":"arxiv_version","alias_value":"1109.5101v1","created_at":"2026-05-18T04:12:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.5101","created_at":"2026-05-18T04:12:21Z"},{"alias_kind":"pith_short_12","alias_value":"VBKSITGDKSV4","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"VBKSITGDKSV4N7DZ","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"VBKSITGD","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:1a7c9d4a09c7a88f1d11ee6c1071e4a8819cfb0bae60ac5cfc8289cbcd7102e1","target":"graph","created_at":"2026-05-18T04:12:21Z","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":"We give a solution to the fundamental problem of restoring optical resonances in deep subwavelength structures by resorting to indefinite metamaterials. We prove that a nanometric thick hyperbolic slab with very small permittivities exhibits etalon resonances and provides high-contrast optical angular filtering. This is possible since the hyperbolic dispersion allows the vacuum radiation to couple with medium plane waves with longitudinal wavenumbers large enough to yield optical standing waves within the nanometric slab thickness. Our findings can form the basis of a novel way for shrinking o","authors_text":"Alessandro Ciattoni, Elisa Spinozzi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-09-23T14:58:18Z","title":"Restoring of optical resonances in subwavelength hyperbolic etalons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5101","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":"sha256:9922f8f709e829082c92e34f7c3a591af3c936d6c29d96b8db4d193d2383345b","target":"record","created_at":"2026-05-18T04:12:21Z","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":"120e43119104c7d2f8a491a20bedef1774f2736d227d16ad8d2a92f66fa07371","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-09-23T14:58:18Z","title_canon_sha256":"15a5cf7f2e02ff494317f9d26f03310f8a4483a71886570b742c6c6c1c69af56"},"schema_version":"1.0","source":{"id":"1109.5101","kind":"arxiv","version":1}},"canonical_sha256":"a855244cc354abc6fc796995ceaf9871808f3b30b0b6f3836be53fb6305d417a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a855244cc354abc6fc796995ceaf9871808f3b30b0b6f3836be53fb6305d417a","first_computed_at":"2026-05-18T04:12:21.697790Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:21.697790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TOswA28i0Hg0nWfJ3MJoKTnsje8F1xn5VOcYf3q/mVfMbFaSkJioYn+gNR9HS6PO9dyWO026Hjkn2uFTKzMTBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:21.698525Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.5101","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9922f8f709e829082c92e34f7c3a591af3c936d6c29d96b8db4d193d2383345b","sha256:1a7c9d4a09c7a88f1d11ee6c1071e4a8819cfb0bae60ac5cfc8289cbcd7102e1"],"state_sha256":"3d9807d32461377509a122065bbdd426a9b1d163734652bd1677196a57ac16ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TgPvqjGo/Qp5iA8XE4isxvpMxd8N3SDysC8H0vfU1qmwzmzYAvOP3c0ZHM7ygzMDVN3vc1gG7y/1w/po3oEkDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T13:27:33.705082Z","bundle_sha256":"29a438b4fbb95c47c413bcfdc2f6d1b70fb8525c48f3f1686e3d22316e778808"}}