{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OW3K57N5OFSPN6QWOWD2XXT5LO","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":"b9de8b42695706fbcf3c12954b398243b1ed9a805a9207cefa53940abbde9d93","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2019-12-13T23:14:15Z","title_canon_sha256":"7e6b2689d84197c392a4dcf272512a8eb394a6476eae9d5833c6d5f3c3aaa113"},"schema_version":"1.0","source":{"id":"1912.06741","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.06741","created_at":"2026-07-05T01:04:09Z"},{"alias_kind":"arxiv_version","alias_value":"1912.06741v2","created_at":"2026-07-05T01:04:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.06741","created_at":"2026-07-05T01:04:09Z"},{"alias_kind":"pith_short_12","alias_value":"OW3K57N5OFSP","created_at":"2026-07-05T01:04:09Z"},{"alias_kind":"pith_short_16","alias_value":"OW3K57N5OFSPN6QW","created_at":"2026-07-05T01:04:09Z"},{"alias_kind":"pith_short_8","alias_value":"OW3K57N5","created_at":"2026-07-05T01:04:09Z"}],"graph_snapshots":[{"event_id":"sha256:bd46e4738d9fc32bb501c555d4d451c44b79542af02798b9c28c37566ee2da6a","target":"graph","created_at":"2026-07-05T01:04:09Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1912.06741/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present experimental results on the sub-Doppler Rydberg spectroscopy of potassium in a hot cell and cold atoms, performed with two counter-propagating laser beams of 405 nm and 980 nm in the inverted ladder-type system (4S1/2-5P3/2-nS1/2 and nD3/2;5/2). Such an inverted ladder-type scheme is predicted to be without sub-Doppler electromagnetically induced transparency (EIT) feature in a thermal ensemble under the weak-probe approximation. Instead, we utilized a strong probe field and successfully observed a transparency window with a width narrower than 50~MHz. Our all-order numerical simula","authors_text":"Jow-Tsong Shy, Khemendra Shukla, Shao-Yu Chang, Te-Hwei Suen, Tzu-Ling Chen, Tzu-Yung Kuan, Yao-Chin Huang, Yi-Jan Huang, Yi-Wei Liu","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2019-12-13T23:14:15Z","title":"Inverted Ladder Type Optical Excitation of Potassium Rydberg States with Hot and Cold Ensembles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.06741","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:ecf0bc54a9b0d10b17fb778b7a104d83d01eadfdeee43a1a18eee5f5ceff29bf","target":"record","created_at":"2026-07-05T01:04:09Z","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":"b9de8b42695706fbcf3c12954b398243b1ed9a805a9207cefa53940abbde9d93","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2019-12-13T23:14:15Z","title_canon_sha256":"7e6b2689d84197c392a4dcf272512a8eb394a6476eae9d5833c6d5f3c3aaa113"},"schema_version":"1.0","source":{"id":"1912.06741","kind":"arxiv","version":2}},"canonical_sha256":"75b6aefdbd7164f6fa167587abde7d5bbb0bd843abf4bbfd29b6b3c48336e25e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75b6aefdbd7164f6fa167587abde7d5bbb0bd843abf4bbfd29b6b3c48336e25e","first_computed_at":"2026-07-05T01:04:09.730981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:04:09.730981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tcft1Se5d08NZoe+v/J5xRfbAUJXvvpUd+8W7jp2NSypSruJsBVqX+EseMjPKTBQWyI2cDSRw2X6XEkeupPJDw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:04:09.731462Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.06741","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ecf0bc54a9b0d10b17fb778b7a104d83d01eadfdeee43a1a18eee5f5ceff29bf","sha256:bd46e4738d9fc32bb501c555d4d451c44b79542af02798b9c28c37566ee2da6a"],"state_sha256":"e7b51f1673df9864d5328e0f6a991b8b750b202718d89b13cec7c05d4f3dc7c5"}