{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:IAQGFXLJCNNENANCY4GPPG4OQS","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":"b82862edb6333dca801b62b98e95c0711721a695f97b08da569095a5bf4091f2","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-06-29T20:05:57Z","title_canon_sha256":"83dea140047353a0051ba6ac436582f7f7bc4b051d501c0624fb450474048174"},"schema_version":"1.0","source":{"id":"2606.30871","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.30871","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"arxiv_version","alias_value":"2606.30871v1","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.30871","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_12","alias_value":"IAQGFXLJCNNE","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_16","alias_value":"IAQGFXLJCNNENANC","created_at":"2026-07-01T00:17:20Z"},{"alias_kind":"pith_short_8","alias_value":"IAQGFXLJ","created_at":"2026-07-01T00:17:20Z"}],"graph_snapshots":[{"event_id":"sha256:0c5e08470d30ee16ec62123f0bfb905043d2ea1f591bc65ff8dd4fdf2211e9cb","target":"graph","created_at":"2026-07-01T00:17:20Z","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/2606.30871/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The $5S_{1/2} \\rightarrow 6P_{3/2}$ transition of rubidium at $420$~nm is a promising candidate for a portable warm-vapor all-optical atomic clock. Despite recent precision spectroscopy studies at $420$ nm in Rb, an experimental determination of the saturation intensity of this transition has not yet been reported. The saturation intensity is a fundamental parameter that influences the identification of a potential clock transition frequency in terms of optimizing various intensity-dependent parameters and connected systematics. In this work, we report the first experimental measurement of the","authors_text":"Arijit Sharma, Sateesh S., Shivam Sinha, Sumit Achar","cross_cats":["quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-06-29T20:05:57Z","title":"Precision Measurement of the Saturation Intensity in Rubidium at 420 nm"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.30871","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":"sha256:03fd36f1f77b15d71083e8be8392c55bd3312d951ed53d30c554c2bcc00c9121","target":"record","created_at":"2026-07-01T00:17:20Z","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":"b82862edb6333dca801b62b98e95c0711721a695f97b08da569095a5bf4091f2","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-06-29T20:05:57Z","title_canon_sha256":"83dea140047353a0051ba6ac436582f7f7bc4b051d501c0624fb450474048174"},"schema_version":"1.0","source":{"id":"2606.30871","kind":"arxiv","version":1}},"canonical_sha256":"402062dd69135a4681a2c70cf79b8e84b1695379dd32b74d4294ea3fda45a2df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"402062dd69135a4681a2c70cf79b8e84b1695379dd32b74d4294ea3fda45a2df","first_computed_at":"2026-07-01T00:17:20.049155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T00:17:20.049155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QwvlPTY9tZw06Jb+BWrhodzwtnkSva2DEFX08xf/t+2/xKPgslq8evPyZh3LOCqMKZqWHVDlTsZRKPXn4qy5DQ==","signature_status":"signed_v1","signed_at":"2026-07-01T00:17:20.049575Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.30871","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03fd36f1f77b15d71083e8be8392c55bd3312d951ed53d30c554c2bcc00c9121","sha256:0c5e08470d30ee16ec62123f0bfb905043d2ea1f591bc65ff8dd4fdf2211e9cb"],"state_sha256":"cf7d41236fbbdd9a133fc1ae3038c4f6b11c242770394b48c826ef0dc2d02369"}