{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GWAET2SM2PTUTVR3O6ADUTICR2","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":"8a8d1ba17a19279d21bddf92b7c92f125e08b4e8fa9e97f67c10f2ca7febb7fd","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-01-09T14:11:01Z","title_canon_sha256":"be565fc02be3103dd1c01085bf82f9336ad8a32271134b1477bfbdc2f56c50ed"},"schema_version":"1.0","source":{"id":"1701.02181","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02181","created_at":"2026-05-18T00:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02181v1","created_at":"2026-05-18T00:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02181","created_at":"2026-05-18T00:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"GWAET2SM2PTU","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GWAET2SM2PTUTVR3","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GWAET2SM","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:c5ed4b5a1adb93bad43713f657c75c535d932ca7f47267928adeac2afff3a54a","target":"graph","created_at":"2026-05-18T00:34:52Z","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":"The stabilization of lasers to absolute frequency references is a fundamental requirement in several areas of atomic, molecular and optical physics. A range of techniques are available to produce a suitable reference onto which one can 'lock' the laser, many of which depend on the specific internal structure of the reference or are sensitive to laser intensity noise. We present a novel method using the frequency modulation of an acousto-optic modulator's carrier (drive) signal to generate two spatially separated beams, with a frequency difference of only a few MHz. These beams are used to prob","authors_text":"Andrei Dragomir, Jonathan Woods, Matthew Aldous, Matt Himsworth, Ritayan Roy","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-01-09T14:11:01Z","title":"Carrier frequency modulation of an acousto-optic modulator for laser stabilization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02181","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":"sha256:76b71d4681c02872be0720663f81232a1a436143a5e1643b35c3b7dcf2dbf812","target":"record","created_at":"2026-05-18T00:34:52Z","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":"8a8d1ba17a19279d21bddf92b7c92f125e08b4e8fa9e97f67c10f2ca7febb7fd","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-01-09T14:11:01Z","title_canon_sha256":"be565fc02be3103dd1c01085bf82f9336ad8a32271134b1477bfbdc2f56c50ed"},"schema_version":"1.0","source":{"id":"1701.02181","kind":"arxiv","version":1}},"canonical_sha256":"358049ea4cd3e749d63b77803a4d028e996fb6cfea94f87188a6fe826114c808","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"358049ea4cd3e749d63b77803a4d028e996fb6cfea94f87188a6fe826114c808","first_computed_at":"2026-05-18T00:34:52.105569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:52.105569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dXjje9LNqf4+b3KQZ4yLBqd3YTtLC+1DpmZMOMM+H55BijDIRVBe6FGNbSttur3XojPVpEg0DqE+7fHPkKqZCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:52.106266Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02181","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76b71d4681c02872be0720663f81232a1a436143a5e1643b35c3b7dcf2dbf812","sha256:c5ed4b5a1adb93bad43713f657c75c535d932ca7f47267928adeac2afff3a54a"],"state_sha256":"d7bbd95f2bfc56f8ac32ce1fc755868d4fe66498fecf9f31189e956db534241b"}