{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JEZVSSJZUIHXSBEWWCKNURZAPF","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":"8023bc0eac7f9f2d36da7dbf4eac424296859a9b11b98e77a3c25deb9eb55d6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-03-09T04:31:34Z","title_canon_sha256":"10d972333f5b2a45b9498c67e0f381baf46a72e036ca63fb8f1124f8b975087c"},"schema_version":"1.0","source":{"id":"1303.2163","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2163","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2163v1","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2163","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"pith_short_12","alias_value":"JEZVSSJZUIHX","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JEZVSSJZUIHXSBEW","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JEZVSSJZ","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:f122b2870136d68da64fade85974701cb479c43f9deb12f265d2614a7a9a9b68","target":"graph","created_at":"2026-05-18T01:51:09Z","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 demonstrate feedback and harmonic locking of chip-scale slot-type optomechanical oscillators to external low-noise reference clocks, with suppressed timing jitter by three orders of magnitude. The feedback and compensation techniques significantly reduce the close-to-carrier phase noise, especially within the locking bandwidth for the integral root-mean-square timing jitter. Harmonic locking via high-order carrier signals is also demonstrated with similar phase noise and integrated root-mean-square timing jitter reduction. The chip-scale optomechanical oscillators are tunable over an 80-kHz","authors_text":"Archita Hati, Chee Wei Wong, David A. Howe, Jiangjun Zheng, Mickey McDonald, Ming Lu, Noam Goldberg, Stefan Strauf, Tanya Zelevinsky, Xingsheng Luan, Ying Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-03-09T04:31:34Z","title":"Feedback and harmonic locking of slot-type optomechanical oscillators to external low-noise reference clocks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2163","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":"sha256:10801f1ef5baa389ebb673d21e2f8ee496c7457f6398802c1902bf347dae4294","target":"record","created_at":"2026-05-18T01:51:09Z","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":"8023bc0eac7f9f2d36da7dbf4eac424296859a9b11b98e77a3c25deb9eb55d6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-03-09T04:31:34Z","title_canon_sha256":"10d972333f5b2a45b9498c67e0f381baf46a72e036ca63fb8f1124f8b975087c"},"schema_version":"1.0","source":{"id":"1303.2163","kind":"arxiv","version":1}},"canonical_sha256":"4933594939a20f790496b094da4720797749b9b3c419a13db33c134e478edd59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4933594939a20f790496b094da4720797749b9b3c419a13db33c134e478edd59","first_computed_at":"2026-05-18T01:51:09.400400Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:09.400400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ipUSvXvm26rWVfGNQWJuyg4W94sh0nppFHHVvkG9kRbFlGBnlmUIoxbb0UCtUlgNJmLPkFw3SD/Z6FSFqdVCBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:09.401043Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.2163","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:10801f1ef5baa389ebb673d21e2f8ee496c7457f6398802c1902bf347dae4294","sha256:f122b2870136d68da64fade85974701cb479c43f9deb12f265d2614a7a9a9b68"],"state_sha256":"a01c14e1f2d1bac1a174257dde3d2f5d38ddebafdcd03accdebc9f97a0c4af1a"}