{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:UP6QKH6VYLZ73TNLTK6ZEAVCEB","short_pith_number":"pith:UP6QKH6V","schema_version":"1.0","canonical_sha256":"a3fd051fd5c2f3fdcdab9abd9202a2204576fced3aa8dfdfa330ccd197b9750d","source":{"kind":"arxiv","id":"0812.0180","version":1},"attestation_state":"computed","paper":{"title":"Phase and frequency noise metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.ins-det","authors_text":"Enrico Rubiola, Kirill Volyanskiy, Laurent Larger, Vincent Giordano","submitted_at":"2008-11-30T22:49:18Z","abstract_excerpt":"As a consequence of a general trend in the physics of oscillators and clocks towards optics, phase and frequency metrology is rapidly moving to optics too. Yet, optics is not replacing the traditional radio-frequency (RF) and microwave domains. Instead, it adds tough challenges. Precision frequency-stability measurements are chiefly based on the measurement of phase noise, which is the main focus of this article. Major progress has been achieved in two main areas. The first is the extreme low-noise measurements, based on the bridge (interferometric) method in real time or with sophisticated co"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0812.0180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2008-11-30T22:49:18Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"72ca04d27a0c3a1cb9da4403653e3f1da323f251479519e2da22890997fa0cc2","abstract_canon_sha256":"cf2f67da9fad43c3d031061cefb05d0ced589bb907cee53649fa6984a5ae705b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:23.349899Z","signature_b64":"TckwFc0abrtIiMRZ67c+O9qFewLLAv6dRjcyNedTL35BBa3P+qyJjQLdC6+Eo6JK1B2IZw+USM7lMP8Ns6OCBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3fd051fd5c2f3fdcdab9abd9202a2204576fced3aa8dfdfa330ccd197b9750d","last_reissued_at":"2026-05-18T00:37:23.349205Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:23.349205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Phase and frequency noise metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.ins-det","authors_text":"Enrico Rubiola, Kirill Volyanskiy, Laurent Larger, Vincent Giordano","submitted_at":"2008-11-30T22:49:18Z","abstract_excerpt":"As a consequence of a general trend in the physics of oscillators and clocks towards optics, phase and frequency metrology is rapidly moving to optics too. Yet, optics is not replacing the traditional radio-frequency (RF) and microwave domains. Instead, it adds tough challenges. Precision frequency-stability measurements are chiefly based on the measurement of phase noise, which is the main focus of this article. Major progress has been achieved in two main areas. The first is the extreme low-noise measurements, based on the bridge (interferometric) method in real time or with sophisticated co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0180","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0812.0180","created_at":"2026-05-18T00:37:23.349290+00:00"},{"alias_kind":"arxiv_version","alias_value":"0812.0180v1","created_at":"2026-05-18T00:37:23.349290+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0180","created_at":"2026-05-18T00:37:23.349290+00:00"},{"alias_kind":"pith_short_12","alias_value":"UP6QKH6VYLZ7","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_16","alias_value":"UP6QKH6VYLZ73TNL","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_8","alias_value":"UP6QKH6V","created_at":"2026-05-18T12:25:58.018023+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB","json":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB.json","graph_json":"https://pith.science/api/pith-number/UP6QKH6VYLZ73TNLTK6ZEAVCEB/graph.json","events_json":"https://pith.science/api/pith-number/UP6QKH6VYLZ73TNLTK6ZEAVCEB/events.json","paper":"https://pith.science/paper/UP6QKH6V"},"agent_actions":{"view_html":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB","download_json":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB.json","view_paper":"https://pith.science/paper/UP6QKH6V","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0812.0180&json=true","fetch_graph":"https://pith.science/api/pith-number/UP6QKH6VYLZ73TNLTK6ZEAVCEB/graph.json","fetch_events":"https://pith.science/api/pith-number/UP6QKH6VYLZ73TNLTK6ZEAVCEB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB/action/storage_attestation","attest_author":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB/action/author_attestation","sign_citation":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB/action/citation_signature","submit_replication":"https://pith.science/pith/UP6QKH6VYLZ73TNLTK6ZEAVCEB/action/replication_record"}},"created_at":"2026-05-18T00:37:23.349290+00:00","updated_at":"2026-05-18T00:37:23.349290+00:00"}