{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IYYKGQ6722XVAHVT34KDUOJCII","short_pith_number":"pith:IYYKGQ67","canonical_record":{"source":{"id":"1401.4800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-20T06:29:56Z","cross_cats_sorted":[],"title_canon_sha256":"22bb99b5b4eda6aa1ecf8c0e2c5ffaa27df29c0884f52c1f463c0a41a2368868","abstract_canon_sha256":"d1d8794dc024ec059b06dfd855b99fde1fad724a060d09a86312e033f1ba5502"},"schema_version":"1.0"},"canonical_sha256":"4630a343dfd6af501eb3df143a3922421a8395360c84eb38080d8214b667e579","source":{"kind":"arxiv","id":"1401.4800","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.4800","created_at":"2026-05-18T03:01:44Z"},{"alias_kind":"arxiv_version","alias_value":"1401.4800v1","created_at":"2026-05-18T03:01:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.4800","created_at":"2026-05-18T03:01:44Z"},{"alias_kind":"pith_short_12","alias_value":"IYYKGQ6722XV","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IYYKGQ6722XVAHVT","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IYYKGQ67","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IYYKGQ6722XVAHVT34KDUOJCII","target":"record","payload":{"canonical_record":{"source":{"id":"1401.4800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-20T06:29:56Z","cross_cats_sorted":[],"title_canon_sha256":"22bb99b5b4eda6aa1ecf8c0e2c5ffaa27df29c0884f52c1f463c0a41a2368868","abstract_canon_sha256":"d1d8794dc024ec059b06dfd855b99fde1fad724a060d09a86312e033f1ba5502"},"schema_version":"1.0"},"canonical_sha256":"4630a343dfd6af501eb3df143a3922421a8395360c84eb38080d8214b667e579","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:01:44.509742Z","signature_b64":"4tI+ETjA1uwjOU2M/YMmeiZkCDVeY02GDYL4vxei39e5JYHqo1xNkb361igJtSw/RtH6dGTO9X/zZhcpCC5iBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4630a343dfd6af501eb3df143a3922421a8395360c84eb38080d8214b667e579","last_reissued_at":"2026-05-18T03:01:44.509099Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:01:44.509099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.4800","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":"2026-05-18T03:01:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nsqPZTkU6tL8rwSvGQjpwaT3LkhMC4QCt2g549kSMqgWtNsY612RMivBHlKhZWXvivWJU0rdtoUqOI0KNwIwAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:23:49.061234Z"},"content_sha256":"b91651a0ead5f600397fa988da89ed0a401f85e9a4ef697740d85602d3f1c5f5","schema_version":"1.0","event_id":"sha256:b91651a0ead5f600397fa988da89ed0a401f85e9a4ef697740d85602d3f1c5f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IYYKGQ6722XVAHVT34KDUOJCII","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High performance nanophotonic circuits based on partially buried horizontal slot waveguides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Chi Xiong, Hong X. Tang, Mo Li, Wolfram H.P. Pernice","submitted_at":"2014-01-20T06:29:56Z","abstract_excerpt":"We present a novel platform to construct high-performance nanophotonic devices in low refractive index dielectric films at telecoms wavelengths. The formation of horizontal slots by PECVD deposition of high index amorphous silicon provides a convenient and low-cost way to tailor nanophotonic devices to application needs. Low propagation loss of less than 2 dB/cm is obtained allowing us to fabricate optical resonators with measured high optical quality factors exceeding 10^5. We design and experimentally demonstrate on-chip grating couplers to efficiently couple light into integrated circuitry "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.4800","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":"2026-05-18T03:01:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IcQfn5xaaTElASjsxkOA1vH+v5sBKJOlfsIJZ/1D2Rth9PEQPOg1MJkKvp4GuBiwRuoNVu6izdioY1Q7tkbbCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:23:49.061977Z"},"content_sha256":"8c2542bc51ba351bfa2fcfbca3216fb41569a7a92436115d3f884564f8c52d0d","schema_version":"1.0","event_id":"sha256:8c2542bc51ba351bfa2fcfbca3216fb41569a7a92436115d3f884564f8c52d0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IYYKGQ6722XVAHVT34KDUOJCII/bundle.json","state_url":"https://pith.science/pith/IYYKGQ6722XVAHVT34KDUOJCII/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IYYKGQ6722XVAHVT34KDUOJCII/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":"2026-06-08T19:23:49Z","links":{"resolver":"https://pith.science/pith/IYYKGQ6722XVAHVT34KDUOJCII","bundle":"https://pith.science/pith/IYYKGQ6722XVAHVT34KDUOJCII/bundle.json","state":"https://pith.science/pith/IYYKGQ6722XVAHVT34KDUOJCII/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IYYKGQ6722XVAHVT34KDUOJCII/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IYYKGQ6722XVAHVT34KDUOJCII","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":"d1d8794dc024ec059b06dfd855b99fde1fad724a060d09a86312e033f1ba5502","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-20T06:29:56Z","title_canon_sha256":"22bb99b5b4eda6aa1ecf8c0e2c5ffaa27df29c0884f52c1f463c0a41a2368868"},"schema_version":"1.0","source":{"id":"1401.4800","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.4800","created_at":"2026-05-18T03:01:44Z"},{"alias_kind":"arxiv_version","alias_value":"1401.4800v1","created_at":"2026-05-18T03:01:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.4800","created_at":"2026-05-18T03:01:44Z"},{"alias_kind":"pith_short_12","alias_value":"IYYKGQ6722XV","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IYYKGQ6722XVAHVT","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IYYKGQ67","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:8c2542bc51ba351bfa2fcfbca3216fb41569a7a92436115d3f884564f8c52d0d","target":"graph","created_at":"2026-05-18T03:01:44Z","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 present a novel platform to construct high-performance nanophotonic devices in low refractive index dielectric films at telecoms wavelengths. The formation of horizontal slots by PECVD deposition of high index amorphous silicon provides a convenient and low-cost way to tailor nanophotonic devices to application needs. Low propagation loss of less than 2 dB/cm is obtained allowing us to fabricate optical resonators with measured high optical quality factors exceeding 10^5. We design and experimentally demonstrate on-chip grating couplers to efficiently couple light into integrated circuitry ","authors_text":"Chi Xiong, Hong X. Tang, Mo Li, Wolfram H.P. Pernice","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-20T06:29:56Z","title":"High performance nanophotonic circuits based on partially buried horizontal slot waveguides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.4800","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:b91651a0ead5f600397fa988da89ed0a401f85e9a4ef697740d85602d3f1c5f5","target":"record","created_at":"2026-05-18T03:01:44Z","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":"d1d8794dc024ec059b06dfd855b99fde1fad724a060d09a86312e033f1ba5502","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-20T06:29:56Z","title_canon_sha256":"22bb99b5b4eda6aa1ecf8c0e2c5ffaa27df29c0884f52c1f463c0a41a2368868"},"schema_version":"1.0","source":{"id":"1401.4800","kind":"arxiv","version":1}},"canonical_sha256":"4630a343dfd6af501eb3df143a3922421a8395360c84eb38080d8214b667e579","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4630a343dfd6af501eb3df143a3922421a8395360c84eb38080d8214b667e579","first_computed_at":"2026-05-18T03:01:44.509099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:01:44.509099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4tI+ETjA1uwjOU2M/YMmeiZkCDVeY02GDYL4vxei39e5JYHqo1xNkb361igJtSw/RtH6dGTO9X/zZhcpCC5iBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:01:44.509742Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.4800","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b91651a0ead5f600397fa988da89ed0a401f85e9a4ef697740d85602d3f1c5f5","sha256:8c2542bc51ba351bfa2fcfbca3216fb41569a7a92436115d3f884564f8c52d0d"],"state_sha256":"218cc40361accb72a283e07dac8bfcd40e8c70dfcf826aa2ea96bfd3f54c02a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E1m4knj/6tIRrL/VnKEoJKnF3qIvsOkl45e3iavXF4b88l4du3SWhiLLhe3y6aXHG5slNlXsh+MB497HpQw1Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T19:23:49.065640Z","bundle_sha256":"0a33981eabed13aec5326380d4691db28b8d0b934684f7d2a079ac0a050e7839"}}