{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:O2TCCYIPLYH2ILNERTEMAGZQOW","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":"d34719ecbb53d6911caf0b1341b7a5cf0c55ed420973e4c8347147f64d112fb4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-24T00:35:45Z","title_canon_sha256":"f4dd846d75771f22b4d498809d4870bbddb7b471a25a634450e035dc3ff63914"},"schema_version":"1.0","source":{"id":"1204.5240","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5240","created_at":"2026-05-18T03:33:14Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5240v2","created_at":"2026-05-18T03:33:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5240","created_at":"2026-05-18T03:33:14Z"},{"alias_kind":"pith_short_12","alias_value":"O2TCCYIPLYH2","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"O2TCCYIPLYH2ILNE","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"O2TCCYIP","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:6a738c003a2fd4f7f55fd7b74b14fc7f713c7e1bdfc0f0a9ca18cf55d42f745f","target":"graph","created_at":"2026-05-18T03:33:14Z","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 that conventional modulated spectroscopy apparatus, used for laser frequency stabilization in many atomic physics laboratories, can be enhanced to provide a wideband lock delivering deep suppression of frequency noise across the acoustic range. Using an acousto-optic modulator driven with an agile oscillator, we show that wideband frequency modulation of the pump laser in modulation transfer spectroscopy produces the unique single lock-point spectrum previously demonstrated with electro-optic phase modulation. We achieve a laser lock with 100 kHz feedback bandwidth, limited by o","authors_text":"Lincoln D. Turner, Vlad Negnevitsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-24T00:35:45Z","title":"Wideband laser locking to an atomic reference with modulation transfer spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5240","kind":"arxiv","version":2},"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:f9868e2c0d39aeaf1e6cffff9a45afa85c62092aacf3d032952f67a7512c58c6","target":"record","created_at":"2026-05-18T03:33:14Z","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":"d34719ecbb53d6911caf0b1341b7a5cf0c55ed420973e4c8347147f64d112fb4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-04-24T00:35:45Z","title_canon_sha256":"f4dd846d75771f22b4d498809d4870bbddb7b471a25a634450e035dc3ff63914"},"schema_version":"1.0","source":{"id":"1204.5240","kind":"arxiv","version":2}},"canonical_sha256":"76a621610f5e0fa42da48cc8c01b3075a617d8fa7703223ea19edf85fe795ebc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76a621610f5e0fa42da48cc8c01b3075a617d8fa7703223ea19edf85fe795ebc","first_computed_at":"2026-05-18T03:33:14.175183Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:33:14.175183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G/o64fUCDIiXkgy3idCt1Wdm8XIBTRYjgdwAo3GCHvJwO16NUA1TrQLwzYJWCf7IAdYaO0A37sXxFfKU2r50Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:33:14.175822Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5240","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9868e2c0d39aeaf1e6cffff9a45afa85c62092aacf3d032952f67a7512c58c6","sha256:6a738c003a2fd4f7f55fd7b74b14fc7f713c7e1bdfc0f0a9ca18cf55d42f745f"],"state_sha256":"9ee46c0e129753aec26fbbe5e447bfaa7d093ec2d458da5f3370aa4f773b559e"}