{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:TIJGT6GVAGSVHXQB2L2GRAQG3T","short_pith_number":"pith:TIJGT6GV","canonical_record":{"source":{"id":"1211.3750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-15T21:01:02Z","cross_cats_sorted":[],"title_canon_sha256":"d70a56c0217cdc10ae33c022624fe55b83620afd6e4d11407a996cabc739d1d3","abstract_canon_sha256":"7b6ad506fab4087b0b507e57631a5de7c0b61b47833f27a5c5bd3618b69bb0e4"},"schema_version":"1.0"},"canonical_sha256":"9a1269f8d501a553de01d2f4688206dcd90f8b3cb3a265f1e4660c6c97b6c078","source":{"kind":"arxiv","id":"1211.3750","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.3750","created_at":"2026-05-18T01:53:10Z"},{"alias_kind":"arxiv_version","alias_value":"1211.3750v1","created_at":"2026-05-18T01:53:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.3750","created_at":"2026-05-18T01:53:10Z"},{"alias_kind":"pith_short_12","alias_value":"TIJGT6GVAGSV","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TIJGT6GVAGSVHXQB","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TIJGT6GV","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:TIJGT6GVAGSVHXQB2L2GRAQG3T","target":"record","payload":{"canonical_record":{"source":{"id":"1211.3750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-15T21:01:02Z","cross_cats_sorted":[],"title_canon_sha256":"d70a56c0217cdc10ae33c022624fe55b83620afd6e4d11407a996cabc739d1d3","abstract_canon_sha256":"7b6ad506fab4087b0b507e57631a5de7c0b61b47833f27a5c5bd3618b69bb0e4"},"schema_version":"1.0"},"canonical_sha256":"9a1269f8d501a553de01d2f4688206dcd90f8b3cb3a265f1e4660c6c97b6c078","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:10.682478Z","signature_b64":"yQf5aNgsoOPPaYi2GNvtzulalvUrTmm9wJG80ZC0HiQilNa8cmhjMmO6UDjxhpD7zF8FOtlJbdgTgynx87ZMAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a1269f8d501a553de01d2f4688206dcd90f8b3cb3a265f1e4660c6c97b6c078","last_reissued_at":"2026-05-18T01:53:10.681988Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:10.681988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.3750","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":"2026-05-18T01:53:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gTOGZgsU0nw/+2K9J7tLDCIwuu8KQVzz1L41aMlD0TPCvJswhN2KbmkGTlJwr3F/Hv+GNe1bwLknesGjrt9kBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:15:43.485971Z"},"content_sha256":"bb05a4dfb842d2e8ec99531c0160ef2a3a660d8bb082bcd24f36c3d017a303d1","schema_version":"1.0","event_id":"sha256:bb05a4dfb842d2e8ec99531c0160ef2a3a660d8bb082bcd24f36c3d017a303d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:TIJGT6GVAGSVHXQB2L2GRAQG3T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Broadband Transformation Optics Devices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander V. Kildishev, Igor I. Smolyaninov, Vera N. Smolyaninova, Vladimir M. Shalaev","submitted_at":"2012-11-15T21:01:02Z","abstract_excerpt":"Recently we have suggested that two-dimensional broadband transformation optics devices based on metamaterial designs may be built using tapered waveguides. Here we review application of this principle to broadband electromagnetic cloaking, trapped rainbow, and novel microscopy devices."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.3750","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":"2026-05-18T01:53:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tl1HOTusMRx049D/9XbmlW85Vae3Pgbgm1LO6t2KRzDdRnYSwqEpGXF0+pfaO0zhFVEJlAhW/L//QT8Mb2MYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:15:43.486431Z"},"content_sha256":"86541391508933bd91972f1f7149fde70aad4a52fd310207a7d111683648579f","schema_version":"1.0","event_id":"sha256:86541391508933bd91972f1f7149fde70aad4a52fd310207a7d111683648579f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T/bundle.json","state_url":"https://pith.science/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T/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":"2026-05-29T15:15:43Z","links":{"resolver":"https://pith.science/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T","bundle":"https://pith.science/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T/bundle.json","state":"https://pith.science/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TIJGT6GVAGSVHXQB2L2GRAQG3T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TIJGT6GVAGSVHXQB2L2GRAQG3T","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":"7b6ad506fab4087b0b507e57631a5de7c0b61b47833f27a5c5bd3618b69bb0e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-15T21:01:02Z","title_canon_sha256":"d70a56c0217cdc10ae33c022624fe55b83620afd6e4d11407a996cabc739d1d3"},"schema_version":"1.0","source":{"id":"1211.3750","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.3750","created_at":"2026-05-18T01:53:10Z"},{"alias_kind":"arxiv_version","alias_value":"1211.3750v1","created_at":"2026-05-18T01:53:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.3750","created_at":"2026-05-18T01:53:10Z"},{"alias_kind":"pith_short_12","alias_value":"TIJGT6GVAGSV","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TIJGT6GVAGSVHXQB","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TIJGT6GV","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:86541391508933bd91972f1f7149fde70aad4a52fd310207a7d111683648579f","target":"graph","created_at":"2026-05-18T01:53:10Z","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":"Recently we have suggested that two-dimensional broadband transformation optics devices based on metamaterial designs may be built using tapered waveguides. Here we review application of this principle to broadband electromagnetic cloaking, trapped rainbow, and novel microscopy devices.","authors_text":"Alexander V. Kildishev, Igor I. Smolyaninov, Vera N. Smolyaninova, Vladimir M. Shalaev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-15T21:01:02Z","title":"Broadband Transformation Optics Devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.3750","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:bb05a4dfb842d2e8ec99531c0160ef2a3a660d8bb082bcd24f36c3d017a303d1","target":"record","created_at":"2026-05-18T01:53:10Z","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":"7b6ad506fab4087b0b507e57631a5de7c0b61b47833f27a5c5bd3618b69bb0e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-15T21:01:02Z","title_canon_sha256":"d70a56c0217cdc10ae33c022624fe55b83620afd6e4d11407a996cabc739d1d3"},"schema_version":"1.0","source":{"id":"1211.3750","kind":"arxiv","version":1}},"canonical_sha256":"9a1269f8d501a553de01d2f4688206dcd90f8b3cb3a265f1e4660c6c97b6c078","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a1269f8d501a553de01d2f4688206dcd90f8b3cb3a265f1e4660c6c97b6c078","first_computed_at":"2026-05-18T01:53:10.681988Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:10.681988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yQf5aNgsoOPPaYi2GNvtzulalvUrTmm9wJG80ZC0HiQilNa8cmhjMmO6UDjxhpD7zF8FOtlJbdgTgynx87ZMAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:10.682478Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.3750","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb05a4dfb842d2e8ec99531c0160ef2a3a660d8bb082bcd24f36c3d017a303d1","sha256:86541391508933bd91972f1f7149fde70aad4a52fd310207a7d111683648579f"],"state_sha256":"5b5914855069115d9b7e71575494b9c5842906321f67d88ee6848b1f3adf76f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hItJ7lIQwP95GPUAL1x3gfLJumOYrBQTgmp9OLwMkV1CPXnijj+4KAFinwuVmcK0gARQWSSUW9MDmny6hGhKBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:15:43.489880Z","bundle_sha256":"3b4e9da6ca66e22d07bded72a8150689a7dfaeb736eae7b0f2229f4b88e8e567"}}