{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ZGP44WZFCOVQJPHZC6K3XZ2EI7","short_pith_number":"pith:ZGP44WZF","canonical_record":{"source":{"id":"2506.08615","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-10T09:23:14Z","cross_cats_sorted":[],"title_canon_sha256":"12be25b6470f568a3c882b8a1842f7ad110409ef2d1bd269304dbf490b047e16","abstract_canon_sha256":"861e7181dd91d007dbcb686d7eedc557ad1d9f74192af1ee0cc4d23d736e5d77"},"schema_version":"1.0"},"canonical_sha256":"c99fce5b2513ab04bcf91795bbe74447f59bf5561416394ab419d3cd334bbd87","source":{"kind":"arxiv","id":"2506.08615","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.08615","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"arxiv_version","alias_value":"2506.08615v1","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.08615","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"pith_short_12","alias_value":"ZGP44WZFCOVQ","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"pith_short_16","alias_value":"ZGP44WZFCOVQJPHZ","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"pith_short_8","alias_value":"ZGP44WZF","created_at":"2026-07-05T11:19:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ZGP44WZFCOVQJPHZC6K3XZ2EI7","target":"record","payload":{"canonical_record":{"source":{"id":"2506.08615","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-10T09:23:14Z","cross_cats_sorted":[],"title_canon_sha256":"12be25b6470f568a3c882b8a1842f7ad110409ef2d1bd269304dbf490b047e16","abstract_canon_sha256":"861e7181dd91d007dbcb686d7eedc557ad1d9f74192af1ee0cc4d23d736e5d77"},"schema_version":"1.0"},"canonical_sha256":"c99fce5b2513ab04bcf91795bbe74447f59bf5561416394ab419d3cd334bbd87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:19:10.603877Z","signature_b64":"hk6K27RHK7MvvT8uk0WBFyYkjFBjM6JDtsMEHZ7qIJMlCU54NstplI/TAVpvf0sI0TvPeCZX7mNBcHSjC5/ZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c99fce5b2513ab04bcf91795bbe74447f59bf5561416394ab419d3cd334bbd87","last_reissued_at":"2026-07-05T11:19:10.603409Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:19:10.603409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.08615","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":"2026-07-05T11:19:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wz/DhgM6D0jmjtwGeEQBy92WwGNLfMxuVIqSHLv/ka92r9RupFOK0k4JQdYJeKEZZMIjfwYeY5vHGiM8GHQ2Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T04:57:00.937535Z"},"content_sha256":"ef2a5eb8e0a0b1ef1ef077b47747be0b2c44be925e32db5f7760fd42c4ddf20c","schema_version":"1.0","event_id":"sha256:ef2a5eb8e0a0b1ef1ef077b47747be0b2c44be925e32db5f7760fd42c4ddf20c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ZGP44WZFCOVQJPHZC6K3XZ2EI7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Visible Brillouin-quadratic microlaser in a high-Q thin-film lithium niobate microdisk","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Chuntao Li, Huakang Yu, Jintian Lin, Lei Wang, Renhong Gao, Xiaochao Luo, Xingzhao Huang, Ya Cheng, Yifei Yao, Yingnuo Qiu, Yixuan Yang","submitted_at":"2025-06-10T09:23:14Z","abstract_excerpt":"Narrow-linewidth lasers at short/visible wavelengths are crucial for quantum and atomic applications, such as atomic clocks, quantum computing, atomic and molecular spectroscopy, and quantum sensing. However, such lasers are often only accessible in bulky tabletop systems and remain scarce in integrated photonic platform. Here, we report an on-chip visible Brillouin-quadratic microlaser in a 117-um-diameter thin-film lithium niobate (TFLN) microdisk via dispersion engineering. Enabled by the ultra-high Q factor of 4.0X10(6) and small mode volume, strong photon-phonon interaction and high secon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.08615","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/2506.08615/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":"2026-07-05T11:19:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wTckAJXc70SFpkQhXEGPziJUyVoGi6Y74Z4/dW85GOoH/ZFpT3/voKZn53RGq++h+opwkiwWJESn/cxUCkupAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T04:57:00.937902Z"},"content_sha256":"04223fc1149cdad4ccdd93e4c3b97bcac6c456f097ab80a633d34f926424b925","schema_version":"1.0","event_id":"sha256:04223fc1149cdad4ccdd93e4c3b97bcac6c456f097ab80a633d34f926424b925"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7/bundle.json","state_url":"https://pith.science/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7/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":"2026-07-21T04:57:00Z","links":{"resolver":"https://pith.science/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7","bundle":"https://pith.science/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7/bundle.json","state":"https://pith.science/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZGP44WZFCOVQJPHZC6K3XZ2EI7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ZGP44WZFCOVQJPHZC6K3XZ2EI7","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":"861e7181dd91d007dbcb686d7eedc557ad1d9f74192af1ee0cc4d23d736e5d77","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-10T09:23:14Z","title_canon_sha256":"12be25b6470f568a3c882b8a1842f7ad110409ef2d1bd269304dbf490b047e16"},"schema_version":"1.0","source":{"id":"2506.08615","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.08615","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"arxiv_version","alias_value":"2506.08615v1","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.08615","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"pith_short_12","alias_value":"ZGP44WZFCOVQ","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"pith_short_16","alias_value":"ZGP44WZFCOVQJPHZ","created_at":"2026-07-05T11:19:10Z"},{"alias_kind":"pith_short_8","alias_value":"ZGP44WZF","created_at":"2026-07-05T11:19:10Z"}],"graph_snapshots":[{"event_id":"sha256:04223fc1149cdad4ccdd93e4c3b97bcac6c456f097ab80a633d34f926424b925","target":"graph","created_at":"2026-07-05T11:19:10Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.08615/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Narrow-linewidth lasers at short/visible wavelengths are crucial for quantum and atomic applications, such as atomic clocks, quantum computing, atomic and molecular spectroscopy, and quantum sensing. However, such lasers are often only accessible in bulky tabletop systems and remain scarce in integrated photonic platform. Here, we report an on-chip visible Brillouin-quadratic microlaser in a 117-um-diameter thin-film lithium niobate (TFLN) microdisk via dispersion engineering. Enabled by the ultra-high Q factor of 4.0X10(6) and small mode volume, strong photon-phonon interaction and high secon","authors_text":"Chuntao Li, Huakang Yu, Jintian Lin, Lei Wang, Renhong Gao, Xiaochao Luo, Xingzhao Huang, Ya Cheng, Yifei Yao, Yingnuo Qiu, Yixuan Yang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-10T09:23:14Z","title":"Visible Brillouin-quadratic microlaser in a high-Q thin-film lithium niobate microdisk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.08615","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:ef2a5eb8e0a0b1ef1ef077b47747be0b2c44be925e32db5f7760fd42c4ddf20c","target":"record","created_at":"2026-07-05T11:19:10Z","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":"861e7181dd91d007dbcb686d7eedc557ad1d9f74192af1ee0cc4d23d736e5d77","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-10T09:23:14Z","title_canon_sha256":"12be25b6470f568a3c882b8a1842f7ad110409ef2d1bd269304dbf490b047e16"},"schema_version":"1.0","source":{"id":"2506.08615","kind":"arxiv","version":1}},"canonical_sha256":"c99fce5b2513ab04bcf91795bbe74447f59bf5561416394ab419d3cd334bbd87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c99fce5b2513ab04bcf91795bbe74447f59bf5561416394ab419d3cd334bbd87","first_computed_at":"2026-07-05T11:19:10.603409Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:19:10.603409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hk6K27RHK7MvvT8uk0WBFyYkjFBjM6JDtsMEHZ7qIJMlCU54NstplI/TAVpvf0sI0TvPeCZX7mNBcHSjC5/ZBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:19:10.603877Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.08615","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef2a5eb8e0a0b1ef1ef077b47747be0b2c44be925e32db5f7760fd42c4ddf20c","sha256:04223fc1149cdad4ccdd93e4c3b97bcac6c456f097ab80a633d34f926424b925"],"state_sha256":"5afa4911d88b9d6c185bf0a5efaf840d664d562f2c619e3eb83b6819c4358a6c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wePvOr9tpXazvXkmAFIWSIN3RCpFpM3Ktx2R8JlK4ftVCCaVuxtc3eLqJwQPajznhSPOrymF7f656SO/E8D1DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T04:57:00.940410Z","bundle_sha256":"d81891a869f105f5c9de5bfe26a3d3535c4741d3ca7d2816eb425bf12c7cc280"}}