{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:I2OQ7KJDFVTGJSGNDH4XU7JAHG","short_pith_number":"pith:I2OQ7KJD","canonical_record":{"source":{"id":"1307.6317","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-24T07:56:30Z","cross_cats_sorted":[],"title_canon_sha256":"d77db67d47256b9577dbdb3de4322ffa940e9f0b97623a06ad1359ccd29af6be","abstract_canon_sha256":"170d0423e0a86ca33a05d472a3ba748e8d5637d01ed2918f80e40374af0ba70e"},"schema_version":"1.0"},"canonical_sha256":"469d0fa9232d6664c8cd19f97a7d2039aa0a158f700d5a4d715052bd0f533ff4","source":{"kind":"arxiv","id":"1307.6317","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.6317","created_at":"2026-05-18T03:11:35Z"},{"alias_kind":"arxiv_version","alias_value":"1307.6317v1","created_at":"2026-05-18T03:11:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.6317","created_at":"2026-05-18T03:11:35Z"},{"alias_kind":"pith_short_12","alias_value":"I2OQ7KJDFVTG","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"I2OQ7KJDFVTGJSGN","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"I2OQ7KJD","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:I2OQ7KJDFVTGJSGNDH4XU7JAHG","target":"record","payload":{"canonical_record":{"source":{"id":"1307.6317","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-24T07:56:30Z","cross_cats_sorted":[],"title_canon_sha256":"d77db67d47256b9577dbdb3de4322ffa940e9f0b97623a06ad1359ccd29af6be","abstract_canon_sha256":"170d0423e0a86ca33a05d472a3ba748e8d5637d01ed2918f80e40374af0ba70e"},"schema_version":"1.0"},"canonical_sha256":"469d0fa9232d6664c8cd19f97a7d2039aa0a158f700d5a4d715052bd0f533ff4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:11:35.513156Z","signature_b64":"c2IjKL7bV2h8qWhWhiHdzoHwWw2YGR0FYxP6Uav+/KsSqWoDcr55ahWQIG3axqwHzC46Hm4CdVHxQptW1kpCDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"469d0fa9232d6664c8cd19f97a7d2039aa0a158f700d5a4d715052bd0f533ff4","last_reissued_at":"2026-05-18T03:11:35.512674Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:11:35.512674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.6317","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":"2026-05-18T03:11:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xluqmEwDt5G8tvKiyRbwMbbMWHCPyJ3NwgD82hju4zoJiZB3j/UYmswI9+w/sE5bdpoAtFuwh2Au7yJCHUd6BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:17:58.845252Z"},"content_sha256":"40b494683f2906647788b87d2902b2268c90f0aae2bd825a378047c2c6030d80","schema_version":"1.0","event_id":"sha256:40b494683f2906647788b87d2902b2268c90f0aae2bd825a378047c2c6030d80"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:I2OQ7KJDFVTGJSGNDH4XU7JAHG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Controlling Intensity and Phase of Terahertz Radiation with an Optically Thin Liquid Crystal-Loaded Metamaterial","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"J. Wallauer, M. Kaczmarek, M. Walther, N. I. Zheludev, O. Buchnev, V. A. Fedotov","submitted_at":"2013-07-24T07:56:30Z","abstract_excerpt":"We experimentally demonstrate intensity and phase modulation of terahertz radiation using actively controlled large-area planar metamaterial (metafilm) hybridized with a 12 um thick layer of a liquid crystal. Active control was introduced through in-plane electrical switching of the liquid crystal, which enabled us to achieve a reversible single-pass absolute transmission change of 20 % and a phase change of 40 deg at only 20 V."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.6317","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":"2026-05-18T03:11:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/5GVhQrPjjKydYlAJVqyYUISOgW9byEiOmVv+Uo6MeO+GYwufqL0lWaTs6VQoJso7SR0FliKa/6/HVxDQGo2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:17:58.845947Z"},"content_sha256":"b240a7678ef3c1057f1a6594e247b0bc36b17a45e24e753fe2924765c13d7987","schema_version":"1.0","event_id":"sha256:b240a7678ef3c1057f1a6594e247b0bc36b17a45e24e753fe2924765c13d7987"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG/bundle.json","state_url":"https://pith.science/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG/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":"2026-05-28T19:17:58Z","links":{"resolver":"https://pith.science/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG","bundle":"https://pith.science/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG/bundle.json","state":"https://pith.science/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I2OQ7KJDFVTGJSGNDH4XU7JAHG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:I2OQ7KJDFVTGJSGNDH4XU7JAHG","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":"170d0423e0a86ca33a05d472a3ba748e8d5637d01ed2918f80e40374af0ba70e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-24T07:56:30Z","title_canon_sha256":"d77db67d47256b9577dbdb3de4322ffa940e9f0b97623a06ad1359ccd29af6be"},"schema_version":"1.0","source":{"id":"1307.6317","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.6317","created_at":"2026-05-18T03:11:35Z"},{"alias_kind":"arxiv_version","alias_value":"1307.6317v1","created_at":"2026-05-18T03:11:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.6317","created_at":"2026-05-18T03:11:35Z"},{"alias_kind":"pith_short_12","alias_value":"I2OQ7KJDFVTG","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"I2OQ7KJDFVTGJSGN","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"I2OQ7KJD","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:b240a7678ef3c1057f1a6594e247b0bc36b17a45e24e753fe2924765c13d7987","target":"graph","created_at":"2026-05-18T03:11:35Z","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 experimentally demonstrate intensity and phase modulation of terahertz radiation using actively controlled large-area planar metamaterial (metafilm) hybridized with a 12 um thick layer of a liquid crystal. Active control was introduced through in-plane electrical switching of the liquid crystal, which enabled us to achieve a reversible single-pass absolute transmission change of 20 % and a phase change of 40 deg at only 20 V.","authors_text":"J. Wallauer, M. Kaczmarek, M. Walther, N. I. Zheludev, O. Buchnev, V. A. Fedotov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-24T07:56:30Z","title":"Controlling Intensity and Phase of Terahertz Radiation with an Optically Thin Liquid Crystal-Loaded Metamaterial"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.6317","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":"sha256:40b494683f2906647788b87d2902b2268c90f0aae2bd825a378047c2c6030d80","target":"record","created_at":"2026-05-18T03:11:35Z","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":"170d0423e0a86ca33a05d472a3ba748e8d5637d01ed2918f80e40374af0ba70e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-07-24T07:56:30Z","title_canon_sha256":"d77db67d47256b9577dbdb3de4322ffa940e9f0b97623a06ad1359ccd29af6be"},"schema_version":"1.0","source":{"id":"1307.6317","kind":"arxiv","version":1}},"canonical_sha256":"469d0fa9232d6664c8cd19f97a7d2039aa0a158f700d5a4d715052bd0f533ff4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"469d0fa9232d6664c8cd19f97a7d2039aa0a158f700d5a4d715052bd0f533ff4","first_computed_at":"2026-05-18T03:11:35.512674Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:11:35.512674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c2IjKL7bV2h8qWhWhiHdzoHwWw2YGR0FYxP6Uav+/KsSqWoDcr55ahWQIG3axqwHzC46Hm4CdVHxQptW1kpCDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:11:35.513156Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.6317","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40b494683f2906647788b87d2902b2268c90f0aae2bd825a378047c2c6030d80","sha256:b240a7678ef3c1057f1a6594e247b0bc36b17a45e24e753fe2924765c13d7987"],"state_sha256":"5ec003761e514c19340b3328087a3c4b2006852def4f546a18ac9aa1f89aefa8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fpCZunJ/nNLeV3TZhn+SPveglQOyeJVnxv8JUTC6+m5RpLr2+b4XAK6D7Dlv8e4AnXBVhk6M3IlUTBWhMQFiAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:17:58.849619Z","bundle_sha256":"8a8dfeec5271d0121223ce308244503f4c56e39c559774d7e61883156acf5804"}}