{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Z2W2H2RHLT6Z2SDPPOUHYSEPLO","short_pith_number":"pith:Z2W2H2RH","canonical_record":{"source":{"id":"1301.3712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-01-16T15:02:40Z","cross_cats_sorted":[],"title_canon_sha256":"023eb99dd952db92aa46effdf1b21e0cef220eb592b2d5e68dc7f5839362d42e","abstract_canon_sha256":"251bd6f1a4c07c4d02afbdfa8e0358bf1333b080f2cf728a8eb7cbe75c5c6700"},"schema_version":"1.0"},"canonical_sha256":"ceada3ea275cfd9d486f7ba87c488f5bba66ba56c082f893b2dd879aa1b3e73a","source":{"kind":"arxiv","id":"1301.3712","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.3712","created_at":"2026-05-18T03:36:16Z"},{"alias_kind":"arxiv_version","alias_value":"1301.3712v1","created_at":"2026-05-18T03:36:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.3712","created_at":"2026-05-18T03:36:16Z"},{"alias_kind":"pith_short_12","alias_value":"Z2W2H2RHLT6Z","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z2W2H2RHLT6Z2SDP","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z2W2H2RH","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Z2W2H2RHLT6Z2SDPPOUHYSEPLO","target":"record","payload":{"canonical_record":{"source":{"id":"1301.3712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-01-16T15:02:40Z","cross_cats_sorted":[],"title_canon_sha256":"023eb99dd952db92aa46effdf1b21e0cef220eb592b2d5e68dc7f5839362d42e","abstract_canon_sha256":"251bd6f1a4c07c4d02afbdfa8e0358bf1333b080f2cf728a8eb7cbe75c5c6700"},"schema_version":"1.0"},"canonical_sha256":"ceada3ea275cfd9d486f7ba87c488f5bba66ba56c082f893b2dd879aa1b3e73a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:16.935823Z","signature_b64":"OqMRHpY7qKAdBV5zFMlbynfbfGw0wbHDLq5xzFqNLITC+qPbIM7HgTdnrsqwgWkV0Qthnrb6W68sPor3bTMbCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ceada3ea275cfd9d486f7ba87c488f5bba66ba56c082f893b2dd879aa1b3e73a","last_reissued_at":"2026-05-18T03:36:16.935234Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:16.935234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.3712","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":"2026-05-18T03:36:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4RTGLbzMbpoWrRMwreAQyML5w27QODRjzGyFpZj/scfd1MNDyMabEGl5cgiB8Icp0GwEqQPafl6KPhU7H4PODg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T09:49:29.016827Z"},"content_sha256":"24459b000147c756e5807c28ae1c126a0e66cc160213d3ecfa1bca2a56b0b595","schema_version":"1.0","event_id":"sha256:24459b000147c756e5807c28ae1c126a0e66cc160213d3ecfa1bca2a56b0b595"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Z2W2H2RHLT6Z2SDPPOUHYSEPLO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diffraction-free nonevanescent nano-beams using the Fresnel-waveguide concept","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"M. I. Mechler, S. V. Kukhlevsky, Z. Tibai","submitted_at":"2013-01-16T15:02:40Z","abstract_excerpt":"Strong intensity attenuation limits the use of conventional diffraction-free optical elements. We show a possible solution to the exponential intensity attenuation limiting the use of Fresnel-type diffraction-free nanometer-scale optics by using materials with appropriately chosen refractive index. Such beams may be applied for technical and physical problems."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.3712","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":"2026-05-18T03:36:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"INReCjBN1QyAwO1Zj75zmadF98VCG7XGwBKL7pXT+eFsLRIueTpQDlPls4GnrTEJPf8h77pW9xvSV9bEteBtBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T09:49:29.017161Z"},"content_sha256":"4d4505e1c69bccc23e0b34fea76faf963f1118e035b1089ab501976e7604ce04","schema_version":"1.0","event_id":"sha256:4d4505e1c69bccc23e0b34fea76faf963f1118e035b1089ab501976e7604ce04"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO/bundle.json","state_url":"https://pith.science/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO/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":"2026-06-21T09:49:29Z","links":{"resolver":"https://pith.science/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO","bundle":"https://pith.science/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO/bundle.json","state":"https://pith.science/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z2W2H2RHLT6Z2SDPPOUHYSEPLO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Z2W2H2RHLT6Z2SDPPOUHYSEPLO","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":"251bd6f1a4c07c4d02afbdfa8e0358bf1333b080f2cf728a8eb7cbe75c5c6700","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-01-16T15:02:40Z","title_canon_sha256":"023eb99dd952db92aa46effdf1b21e0cef220eb592b2d5e68dc7f5839362d42e"},"schema_version":"1.0","source":{"id":"1301.3712","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.3712","created_at":"2026-05-18T03:36:16Z"},{"alias_kind":"arxiv_version","alias_value":"1301.3712v1","created_at":"2026-05-18T03:36:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.3712","created_at":"2026-05-18T03:36:16Z"},{"alias_kind":"pith_short_12","alias_value":"Z2W2H2RHLT6Z","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z2W2H2RHLT6Z2SDP","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z2W2H2RH","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:4d4505e1c69bccc23e0b34fea76faf963f1118e035b1089ab501976e7604ce04","target":"graph","created_at":"2026-05-18T03:36:16Z","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":"Strong intensity attenuation limits the use of conventional diffraction-free optical elements. We show a possible solution to the exponential intensity attenuation limiting the use of Fresnel-type diffraction-free nanometer-scale optics by using materials with appropriately chosen refractive index. Such beams may be applied for technical and physical problems.","authors_text":"M. I. Mechler, S. V. Kukhlevsky, Z. Tibai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-01-16T15:02:40Z","title":"Diffraction-free nonevanescent nano-beams using the Fresnel-waveguide concept"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.3712","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":"sha256:24459b000147c756e5807c28ae1c126a0e66cc160213d3ecfa1bca2a56b0b595","target":"record","created_at":"2026-05-18T03:36:16Z","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":"251bd6f1a4c07c4d02afbdfa8e0358bf1333b080f2cf728a8eb7cbe75c5c6700","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-01-16T15:02:40Z","title_canon_sha256":"023eb99dd952db92aa46effdf1b21e0cef220eb592b2d5e68dc7f5839362d42e"},"schema_version":"1.0","source":{"id":"1301.3712","kind":"arxiv","version":1}},"canonical_sha256":"ceada3ea275cfd9d486f7ba87c488f5bba66ba56c082f893b2dd879aa1b3e73a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ceada3ea275cfd9d486f7ba87c488f5bba66ba56c082f893b2dd879aa1b3e73a","first_computed_at":"2026-05-18T03:36:16.935234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:16.935234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OqMRHpY7qKAdBV5zFMlbynfbfGw0wbHDLq5xzFqNLITC+qPbIM7HgTdnrsqwgWkV0Qthnrb6W68sPor3bTMbCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:16.935823Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.3712","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24459b000147c756e5807c28ae1c126a0e66cc160213d3ecfa1bca2a56b0b595","sha256:4d4505e1c69bccc23e0b34fea76faf963f1118e035b1089ab501976e7604ce04"],"state_sha256":"f64f53371105f8a5d1e57870a791ce08e3e695fdccdcb3d014978616bde98813"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nr7aEzENlUpaW9l9FLgxBiVg17mhv6o0SXG8trdn/VE9FDZgP3aedWFKP1t+Egsq+5L88z963rYsuprEg62WCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T09:49:29.019102Z","bundle_sha256":"da0ae26718efa68957fb52a0d4384420ba4e5e721dd40834b604cb009cc2e7a9"}}