{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:MJBKAOH3FST3L4BKAEZO7RNP26","short_pith_number":"pith:MJBKAOH3","canonical_record":{"source":{"id":"2202.02920","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-02-07T03:21:07Z","cross_cats_sorted":["nlin.PS","physics.app-ph"],"title_canon_sha256":"f38b18c78a3f400bdd1ae6fecdd6ab0367a8b6659952eb7b2b19bba27ab4206e","abstract_canon_sha256":"1a6b244b19cb3b3ece17478b534cfd9a7cb978607cf5403817ecbaac8c7708e4"},"schema_version":"1.0"},"canonical_sha256":"6242a038fb2ca7b5f02a0132efc5afd7bd922cecdcba03ffa6ee621c348a8ed8","source":{"kind":"arxiv","id":"2202.02920","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.02920","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"arxiv_version","alias_value":"2202.02920v1","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.02920","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"pith_short_12","alias_value":"MJBKAOH3FST3","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"pith_short_16","alias_value":"MJBKAOH3FST3L4BK","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"pith_short_8","alias_value":"MJBKAOH3","created_at":"2026-07-05T03:54:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:MJBKAOH3FST3L4BKAEZO7RNP26","target":"record","payload":{"canonical_record":{"source":{"id":"2202.02920","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-02-07T03:21:07Z","cross_cats_sorted":["nlin.PS","physics.app-ph"],"title_canon_sha256":"f38b18c78a3f400bdd1ae6fecdd6ab0367a8b6659952eb7b2b19bba27ab4206e","abstract_canon_sha256":"1a6b244b19cb3b3ece17478b534cfd9a7cb978607cf5403817ecbaac8c7708e4"},"schema_version":"1.0"},"canonical_sha256":"6242a038fb2ca7b5f02a0132efc5afd7bd922cecdcba03ffa6ee621c348a8ed8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:54:34.105022Z","signature_b64":"F/V9m+kW5Hzqr9bC+fZa0hVGdRaPcudAEk9hV86FpJhbXXKx8FOzHtFkjchgwHFsucEzJi4xvvwwze4IgE2zCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6242a038fb2ca7b5f02a0132efc5afd7bd922cecdcba03ffa6ee621c348a8ed8","last_reissued_at":"2026-07-05T03:54:34.104565Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:54:34.104565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.02920","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":"2026-07-05T03:54:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QTlGhW5nVxC1rzqsQ7IjARojUMUFfkfchWvfc3hXvn3ItPWjOJ9PHk7ioPbC2/c5CkO0E7c2e6jg9FetZI5JAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T13:43:56.803303Z"},"content_sha256":"1671493c687484dc8d6a9c58d01a7f7478ca5a0e713376b919a9019d267487db","schema_version":"1.0","event_id":"sha256:1671493c687484dc8d6a9c58d01a7f7478ca5a0e713376b919a9019d267487db"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:MJBKAOH3FST3L4BKAEZO7RNP26","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Monolithic Kerr and electro-optic hybrid microcombs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.PS","physics.app-ph"],"primary_cat":"physics.optics","authors_text":"Joshua B, Juanjuan Lu, Mohan Shen, Surya Hong X. Tang, Zheng Gong","submitted_at":"2022-02-07T03:21:07Z","abstract_excerpt":"Advances in microresonator-based soliton generation promise chip-scale integration of optical frequency comb for applications spanning from time keeping to frequency synthesis. Miniaturized cavities harness Kerr nonlinearity and enable terahertz soliton repetition rates. However, such high repetition rates are not amenable to direct electronic detection. Here, we demonstrate hybrid Kerr and electro-optic microcombs using the lithium niobate thin film that exhibits both Kerr and Pockels nonlinearities. By interleaving the high-repetition-rate Kerr soliton comb with the low-repetition-rate elect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.02920","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/2202.02920/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":"2026-07-05T03:54:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DInmlU2TdxdHX8WVIRM2KVv4VevVdhIWNr89oW0oYDOxeP2cJRz5CrIYBMRJj1yJ/dkWRjyzuas2PzcPsuljAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T13:43:56.803700Z"},"content_sha256":"9a7d7f8edbe96e13dc83c79a13ac9dbd7adf1f928170653aea90aab0b8ef6dbb","schema_version":"1.0","event_id":"sha256:9a7d7f8edbe96e13dc83c79a13ac9dbd7adf1f928170653aea90aab0b8ef6dbb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJBKAOH3FST3L4BKAEZO7RNP26/bundle.json","state_url":"https://pith.science/pith/MJBKAOH3FST3L4BKAEZO7RNP26/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJBKAOH3FST3L4BKAEZO7RNP26/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":"2026-07-10T13:43:56Z","links":{"resolver":"https://pith.science/pith/MJBKAOH3FST3L4BKAEZO7RNP26","bundle":"https://pith.science/pith/MJBKAOH3FST3L4BKAEZO7RNP26/bundle.json","state":"https://pith.science/pith/MJBKAOH3FST3L4BKAEZO7RNP26/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJBKAOH3FST3L4BKAEZO7RNP26/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MJBKAOH3FST3L4BKAEZO7RNP26","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":"1a6b244b19cb3b3ece17478b534cfd9a7cb978607cf5403817ecbaac8c7708e4","cross_cats_sorted":["nlin.PS","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-02-07T03:21:07Z","title_canon_sha256":"f38b18c78a3f400bdd1ae6fecdd6ab0367a8b6659952eb7b2b19bba27ab4206e"},"schema_version":"1.0","source":{"id":"2202.02920","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.02920","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"arxiv_version","alias_value":"2202.02920v1","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.02920","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"pith_short_12","alias_value":"MJBKAOH3FST3","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"pith_short_16","alias_value":"MJBKAOH3FST3L4BK","created_at":"2026-07-05T03:54:34Z"},{"alias_kind":"pith_short_8","alias_value":"MJBKAOH3","created_at":"2026-07-05T03:54:34Z"}],"graph_snapshots":[{"event_id":"sha256:9a7d7f8edbe96e13dc83c79a13ac9dbd7adf1f928170653aea90aab0b8ef6dbb","target":"graph","created_at":"2026-07-05T03:54:34Z","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/2202.02920/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Advances in microresonator-based soliton generation promise chip-scale integration of optical frequency comb for applications spanning from time keeping to frequency synthesis. Miniaturized cavities harness Kerr nonlinearity and enable terahertz soliton repetition rates. However, such high repetition rates are not amenable to direct electronic detection. Here, we demonstrate hybrid Kerr and electro-optic microcombs using the lithium niobate thin film that exhibits both Kerr and Pockels nonlinearities. By interleaving the high-repetition-rate Kerr soliton comb with the low-repetition-rate elect","authors_text":"Joshua B, Juanjuan Lu, Mohan Shen, Surya Hong X. Tang, Zheng Gong","cross_cats":["nlin.PS","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-02-07T03:21:07Z","title":"Monolithic Kerr and electro-optic hybrid microcombs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.02920","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":"sha256:1671493c687484dc8d6a9c58d01a7f7478ca5a0e713376b919a9019d267487db","target":"record","created_at":"2026-07-05T03:54:34Z","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":"1a6b244b19cb3b3ece17478b534cfd9a7cb978607cf5403817ecbaac8c7708e4","cross_cats_sorted":["nlin.PS","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-02-07T03:21:07Z","title_canon_sha256":"f38b18c78a3f400bdd1ae6fecdd6ab0367a8b6659952eb7b2b19bba27ab4206e"},"schema_version":"1.0","source":{"id":"2202.02920","kind":"arxiv","version":1}},"canonical_sha256":"6242a038fb2ca7b5f02a0132efc5afd7bd922cecdcba03ffa6ee621c348a8ed8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6242a038fb2ca7b5f02a0132efc5afd7bd922cecdcba03ffa6ee621c348a8ed8","first_computed_at":"2026-07-05T03:54:34.104565Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:54:34.104565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F/V9m+kW5Hzqr9bC+fZa0hVGdRaPcudAEk9hV86FpJhbXXKx8FOzHtFkjchgwHFsucEzJi4xvvwwze4IgE2zCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:54:34.105022Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.02920","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1671493c687484dc8d6a9c58d01a7f7478ca5a0e713376b919a9019d267487db","sha256:9a7d7f8edbe96e13dc83c79a13ac9dbd7adf1f928170653aea90aab0b8ef6dbb"],"state_sha256":"fe4040175e11073a84e50e672c13ab00415b46dee3be40eea3de60fbcdf76353"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Fe/V1LeJFAM1Ntywzr8Iw5ZdVjVLHHlihqEweQlJNAxAokqSuilMDCpI+/UGJZZUz2HMJud/QE8NmfaHfmUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T13:43:56.806180Z","bundle_sha256":"b96f15f594bd8539855cb79be6f3be7d8b84ea386c2a41284327492f18164369"}}