{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:QS3YQIWAGPWJF5FDEA6TGBPGNL","short_pith_number":"pith:QS3YQIWA","canonical_record":{"source":{"id":"physics/0601056","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.optics","submitted_at":"2006-01-10T06:55:03Z","cross_cats_sorted":["physics.gen-ph"],"title_canon_sha256":"89350af5841ad5649736b52c80edcb5b46fac1d0670c4314dcb4341e4254f5d3","abstract_canon_sha256":"c543ebe7f54334e8eca31be50d0621bd44f5254d9ffc50008e4fa4891f3623ca"},"schema_version":"1.0"},"canonical_sha256":"84b78822c033ec92f4a3203d3305e66ad9932dadbf2cdbf757f8f1cacd8338ad","source":{"kind":"arxiv","id":"physics/0601056","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0601056","created_at":"2026-05-18T01:38:07Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0601056v1","created_at":"2026-05-18T01:38:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0601056","created_at":"2026-05-18T01:38:07Z"},{"alias_kind":"pith_short_12","alias_value":"QS3YQIWAGPWJ","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"QS3YQIWAGPWJF5FD","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"QS3YQIWA","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:QS3YQIWAGPWJF5FDEA6TGBPGNL","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0601056","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.optics","submitted_at":"2006-01-10T06:55:03Z","cross_cats_sorted":["physics.gen-ph"],"title_canon_sha256":"89350af5841ad5649736b52c80edcb5b46fac1d0670c4314dcb4341e4254f5d3","abstract_canon_sha256":"c543ebe7f54334e8eca31be50d0621bd44f5254d9ffc50008e4fa4891f3623ca"},"schema_version":"1.0"},"canonical_sha256":"84b78822c033ec92f4a3203d3305e66ad9932dadbf2cdbf757f8f1cacd8338ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:07.310832Z","signature_b64":"KX6fD7juEJ2dTsFIYNUkHRdpV4Bp+mbPii76AsXLD48qwSXCPwvUYsGMGaqx9sPKZgDCOtSvcYbS7tohN2QFAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84b78822c033ec92f4a3203d3305e66ad9932dadbf2cdbf757f8f1cacd8338ad","last_reissued_at":"2026-05-18T01:38:07.310285Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:07.310285Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0601056","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":"2026-05-18T01:38:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sdGzjrz0Nb5D5acEp/BOMAlNnkaq+zIj/k7o6HeZrg7K7xqH2uxB8JBVto7p2LMdFonlMDeOMGzsh9p8ORkaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T20:58:17.536966Z"},"content_sha256":"87eb8f9a0a7674d6379ed36ec884681a2cd824d3aed63ed88d0209f485bac589","schema_version":"1.0","event_id":"sha256:87eb8f9a0a7674d6379ed36ec884681a2cd824d3aed63ed88d0209f485bac589"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:QS3YQIWAGPWJF5FDEA6TGBPGNL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental verification of the key properties of a three-dimensional isotropic transmission line based superlens","license":"","headline":"","cross_cats":["physics.gen-ph"],"primary_cat":"physics.optics","authors_text":"Pekka Alitalo, Sergei Tretyakov, Stanislav Maslovski","submitted_at":"2006-01-10T06:55:03Z","abstract_excerpt":"Design and experimental realization of a three-dimensional superlens based on LC-loaded transmission lines are presented. Commercially available components and materials are used in the design. Transmission properties of the designed structure are studied experimentally and the observed lens properties are compared with analytical predictions. Backward-wave propagation and amplification of evanescent waves in the prototype structure are verified both analytically and experimentally."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0601056","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":"2026-05-18T01:38:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ynRxD4cl/qezyg/Qw5mxpNDHqDaK5438y/1Auv5GPt1XHmdRVT21uUTkNhAtdr0SdjnU/4iOauuk4dfAjVbbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T20:58:17.537306Z"},"content_sha256":"514585303c4dc1da7e50de7ee8bf3ebce34e11c4dc8a279ebf2613eddbb27be1","schema_version":"1.0","event_id":"sha256:514585303c4dc1da7e50de7ee8bf3ebce34e11c4dc8a279ebf2613eddbb27be1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL/bundle.json","state_url":"https://pith.science/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL/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":"2026-07-02T20:58:17Z","links":{"resolver":"https://pith.science/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL","bundle":"https://pith.science/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL/bundle.json","state":"https://pith.science/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QS3YQIWAGPWJF5FDEA6TGBPGNL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:QS3YQIWAGPWJF5FDEA6TGBPGNL","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":"c543ebe7f54334e8eca31be50d0621bd44f5254d9ffc50008e4fa4891f3623ca","cross_cats_sorted":["physics.gen-ph"],"license":"","primary_cat":"physics.optics","submitted_at":"2006-01-10T06:55:03Z","title_canon_sha256":"89350af5841ad5649736b52c80edcb5b46fac1d0670c4314dcb4341e4254f5d3"},"schema_version":"1.0","source":{"id":"physics/0601056","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0601056","created_at":"2026-05-18T01:38:07Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0601056v1","created_at":"2026-05-18T01:38:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0601056","created_at":"2026-05-18T01:38:07Z"},{"alias_kind":"pith_short_12","alias_value":"QS3YQIWAGPWJ","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"QS3YQIWAGPWJF5FD","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"QS3YQIWA","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:514585303c4dc1da7e50de7ee8bf3ebce34e11c4dc8a279ebf2613eddbb27be1","target":"graph","created_at":"2026-05-18T01:38:07Z","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":"Design and experimental realization of a three-dimensional superlens based on LC-loaded transmission lines are presented. Commercially available components and materials are used in the design. Transmission properties of the designed structure are studied experimentally and the observed lens properties are compared with analytical predictions. Backward-wave propagation and amplification of evanescent waves in the prototype structure are verified both analytically and experimentally.","authors_text":"Pekka Alitalo, Sergei Tretyakov, Stanislav Maslovski","cross_cats":["physics.gen-ph"],"headline":"","license":"","primary_cat":"physics.optics","submitted_at":"2006-01-10T06:55:03Z","title":"Experimental verification of the key properties of a three-dimensional isotropic transmission line based superlens"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0601056","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":"sha256:87eb8f9a0a7674d6379ed36ec884681a2cd824d3aed63ed88d0209f485bac589","target":"record","created_at":"2026-05-18T01:38:07Z","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":"c543ebe7f54334e8eca31be50d0621bd44f5254d9ffc50008e4fa4891f3623ca","cross_cats_sorted":["physics.gen-ph"],"license":"","primary_cat":"physics.optics","submitted_at":"2006-01-10T06:55:03Z","title_canon_sha256":"89350af5841ad5649736b52c80edcb5b46fac1d0670c4314dcb4341e4254f5d3"},"schema_version":"1.0","source":{"id":"physics/0601056","kind":"arxiv","version":1}},"canonical_sha256":"84b78822c033ec92f4a3203d3305e66ad9932dadbf2cdbf757f8f1cacd8338ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84b78822c033ec92f4a3203d3305e66ad9932dadbf2cdbf757f8f1cacd8338ad","first_computed_at":"2026-05-18T01:38:07.310285Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:07.310285Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KX6fD7juEJ2dTsFIYNUkHRdpV4Bp+mbPii76AsXLD48qwSXCPwvUYsGMGaqx9sPKZgDCOtSvcYbS7tohN2QFAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:07.310832Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0601056","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87eb8f9a0a7674d6379ed36ec884681a2cd824d3aed63ed88d0209f485bac589","sha256:514585303c4dc1da7e50de7ee8bf3ebce34e11c4dc8a279ebf2613eddbb27be1"],"state_sha256":"f375eab5d06c650f05d31dfe2eab0ac6f89e07e38547d0cfbfa21d295ce64df6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u938cOkiUQ7WK8kXaMRFAsooTOgqDULlOcrrs8DBuLt2vgEsiTVTb3mo4potuyQ07+W7KTundSTlZZJFzyOrCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T20:58:17.539226Z","bundle_sha256":"8d578c3235ecc9c4dd48d054c081b1df45d40bc9a78b783d08e241f68603f1cf"}}