{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DYP4ZW5WTTUQJ3LHLBY5KLIMSY","short_pith_number":"pith:DYP4ZW5W","canonical_record":{"source":{"id":"2505.00678","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-01T17:36:41Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"ac21ea1a7840517c84578e5bf1ad0b1f575253baff0551babd3035ed02ac76b4","abstract_canon_sha256":"47771e4becee14a0b3e23f52b9e0d7266fbdb3d9f556ce49c74a6235b31dc261"},"schema_version":"1.0"},"canonical_sha256":"1e1fccdbb69ce904ed675871d52d0c961348d4e1d19d89e8adfdf7102821bd82","source":{"kind":"arxiv","id":"2505.00678","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.00678","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"arxiv_version","alias_value":"2505.00678v1","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.00678","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"pith_short_12","alias_value":"DYP4ZW5WTTUQ","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"pith_short_16","alias_value":"DYP4ZW5WTTUQJ3LH","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"pith_short_8","alias_value":"DYP4ZW5W","created_at":"2026-07-05T10:57:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DYP4ZW5WTTUQJ3LHLBY5KLIMSY","target":"record","payload":{"canonical_record":{"source":{"id":"2505.00678","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-01T17:36:41Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"ac21ea1a7840517c84578e5bf1ad0b1f575253baff0551babd3035ed02ac76b4","abstract_canon_sha256":"47771e4becee14a0b3e23f52b9e0d7266fbdb3d9f556ce49c74a6235b31dc261"},"schema_version":"1.0"},"canonical_sha256":"1e1fccdbb69ce904ed675871d52d0c961348d4e1d19d89e8adfdf7102821bd82","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:57:23.957710Z","signature_b64":"aL5DVrlC8EAWV+HlV+H4ziwogzDS2n8ybVXHG9BJ8fK4HT2uSBQn1CeIRLTXTt1E8f0n1AErEtfk7IM06YnLBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e1fccdbb69ce904ed675871d52d0c961348d4e1d19d89e8adfdf7102821bd82","last_reissued_at":"2026-07-05T10:57:23.957241Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:57:23.957241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.00678","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":"2026-07-05T10:57:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AwcELAZ+NPQx5tulRHpJIMLogqnV3I18/7tP7zjrdK2HsZEIeSoGwcQV7EHOLMxVu+KZYt1ivkEnCx+wR4FhDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T10:34:30.968083Z"},"content_sha256":"27f30368041fb30807e5466c6c4b21551fef8aa82387d462282ee5ecb702b86e","schema_version":"1.0","event_id":"sha256:27f30368041fb30807e5466c6c4b21551fef8aa82387d462282ee5ecb702b86e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DYP4ZW5WTTUQJ3LHLBY5KLIMSY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photonic Crystal Microring Resonators on a Hybrid Silicon Nitride-on-Lithium Niobate Platform","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.optics","authors_text":"Ali Adibi, Amir H. Hosseinnia, Rakesh Krishna, Tianren Fan, Xi Wu, Zhongdi Peng","submitted_at":"2025-05-01T17:36:41Z","abstract_excerpt":"Photonic-crystal resonators (PhCRs) have been widely used in nonlinear integrated photonics for frequency engineering applications. A microwave-assisted frequency converter based on PhCRs highlights its precise control of frequency (enabled by creation of a pair of supermodes by a corrugated PhCR) and bidirectional frequency conversion. In this paper, we demonstrate a high-quality PhCR on a hybrid silicon nitride-on-lithium niobate-on-insulator (SiN-on-LNOI) platform for the first time for voltage-driven flexible frequency conversion using the electro-optic effect (0.85 pm/V). The fabricated P"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.00678","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.00678/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:57:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gu0D/a7DdyT24QyZsXzvlpKD2aAJr0Y7dYEoLxSQwzn57KaFWL1senlyrEST2fevPwmDuy+3+Hw7wfDKDMXbCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T10:34:30.969037Z"},"content_sha256":"38475f6d07c1d3ef73f3be7f26d6058014b93837f05ce9d0536395960f25cb95","schema_version":"1.0","event_id":"sha256:38475f6d07c1d3ef73f3be7f26d6058014b93837f05ce9d0536395960f25cb95"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY/bundle.json","state_url":"https://pith.science/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY/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":"2026-08-20T10:34:30Z","links":{"resolver":"https://pith.science/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY","bundle":"https://pith.science/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY/bundle.json","state":"https://pith.science/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DYP4ZW5WTTUQJ3LHLBY5KLIMSY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DYP4ZW5WTTUQJ3LHLBY5KLIMSY","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":"47771e4becee14a0b3e23f52b9e0d7266fbdb3d9f556ce49c74a6235b31dc261","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-01T17:36:41Z","title_canon_sha256":"ac21ea1a7840517c84578e5bf1ad0b1f575253baff0551babd3035ed02ac76b4"},"schema_version":"1.0","source":{"id":"2505.00678","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.00678","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"arxiv_version","alias_value":"2505.00678v1","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.00678","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"pith_short_12","alias_value":"DYP4ZW5WTTUQ","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"pith_short_16","alias_value":"DYP4ZW5WTTUQJ3LH","created_at":"2026-07-05T10:57:23Z"},{"alias_kind":"pith_short_8","alias_value":"DYP4ZW5W","created_at":"2026-07-05T10:57:23Z"}],"graph_snapshots":[{"event_id":"sha256:38475f6d07c1d3ef73f3be7f26d6058014b93837f05ce9d0536395960f25cb95","target":"graph","created_at":"2026-07-05T10:57:23Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2505.00678/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photonic-crystal resonators (PhCRs) have been widely used in nonlinear integrated photonics for frequency engineering applications. A microwave-assisted frequency converter based on PhCRs highlights its precise control of frequency (enabled by creation of a pair of supermodes by a corrugated PhCR) and bidirectional frequency conversion. In this paper, we demonstrate a high-quality PhCR on a hybrid silicon nitride-on-lithium niobate-on-insulator (SiN-on-LNOI) platform for the first time for voltage-driven flexible frequency conversion using the electro-optic effect (0.85 pm/V). The fabricated P","authors_text":"Ali Adibi, Amir H. Hosseinnia, Rakesh Krishna, Tianren Fan, Xi Wu, Zhongdi Peng","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-01T17:36:41Z","title":"Photonic Crystal Microring Resonators on a Hybrid Silicon Nitride-on-Lithium Niobate Platform"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.00678","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":"sha256:27f30368041fb30807e5466c6c4b21551fef8aa82387d462282ee5ecb702b86e","target":"record","created_at":"2026-07-05T10:57:23Z","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":"47771e4becee14a0b3e23f52b9e0d7266fbdb3d9f556ce49c74a6235b31dc261","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-01T17:36:41Z","title_canon_sha256":"ac21ea1a7840517c84578e5bf1ad0b1f575253baff0551babd3035ed02ac76b4"},"schema_version":"1.0","source":{"id":"2505.00678","kind":"arxiv","version":1}},"canonical_sha256":"1e1fccdbb69ce904ed675871d52d0c961348d4e1d19d89e8adfdf7102821bd82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e1fccdbb69ce904ed675871d52d0c961348d4e1d19d89e8adfdf7102821bd82","first_computed_at":"2026-07-05T10:57:23.957241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:57:23.957241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aL5DVrlC8EAWV+HlV+H4ziwogzDS2n8ybVXHG9BJ8fK4HT2uSBQn1CeIRLTXTt1E8f0n1AErEtfk7IM06YnLBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:57:23.957710Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.00678","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:27f30368041fb30807e5466c6c4b21551fef8aa82387d462282ee5ecb702b86e","sha256:38475f6d07c1d3ef73f3be7f26d6058014b93837f05ce9d0536395960f25cb95"],"state_sha256":"6d45506609fdf19f4b2a014fec13d6c53400c427aa7c886695f8b1a4aa01ab94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qycilbvo90bmEPZVQAKzgsTk2nWncpbIvoGEAu+9DRMqG/LSkOR0WXwAe0mryFFWcM2SYlsq4k07jBCg8ucHAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T10:34:30.976550Z","bundle_sha256":"25eadc791a3497c5311995038c5ad142c824b4637954c0c9a25395d9c6ae23f4"}}