{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:HLSNEUHCZ53FOF6Z5AY2OAGRR4","short_pith_number":"pith:HLSNEUHC","canonical_record":{"source":{"id":"1301.6907","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-29T12:25:17Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"67918d7e3a5e5faf6308a4d47db56a47f70d385e089d272f9d3795d19cb05d34","abstract_canon_sha256":"8c88f61f25789885a973d10cd988762d03501d0bea7b31a082d2e7b4f3c1c8b8"},"schema_version":"1.0"},"canonical_sha256":"3ae4d250e2cf765717d9e831a700d18f09e1c875591ff30d69a8975f4922be70","source":{"kind":"arxiv","id":"1301.6907","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6907","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6907v1","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6907","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"HLSNEUHCZ53F","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"HLSNEUHCZ53FOF6Z","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"HLSNEUHC","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:HLSNEUHCZ53FOF6Z5AY2OAGRR4","target":"record","payload":{"canonical_record":{"source":{"id":"1301.6907","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-29T12:25:17Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"67918d7e3a5e5faf6308a4d47db56a47f70d385e089d272f9d3795d19cb05d34","abstract_canon_sha256":"8c88f61f25789885a973d10cd988762d03501d0bea7b31a082d2e7b4f3c1c8b8"},"schema_version":"1.0"},"canonical_sha256":"3ae4d250e2cf765717d9e831a700d18f09e1c875591ff30d69a8975f4922be70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:04.480136Z","signature_b64":"6Sd3BQZSLY3kjjNaC6nanYQ6g2EV8essg4rqKb33OdztZOmaw1B/9g6AqdwJrArCXHSRgHpyZoamVVcmQOyMCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ae4d250e2cf765717d9e831a700d18f09e1c875591ff30d69a8975f4922be70","last_reissued_at":"2026-05-18T03:19:04.479559Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:04.479559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.6907","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:19:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j6IScUZRjZqfriBWD6d7AafR9BgWXVJvOqkD5xf/IM6Ri5hhkLQORaJ5/zW9YdUA4GnFbcdhEqiauYXdLj3dBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T14:11:09.027886Z"},"content_sha256":"7e97094257584386d39a9cdac5a18baa5c817e50f5ceaf0104bfd544c0674c29","schema_version":"1.0","event_id":"sha256:7e97094257584386d39a9cdac5a18baa5c817e50f5ceaf0104bfd544c0674c29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:HLSNEUHCZ53FOF6Z5AY2OAGRR4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-Precision Measurement of Rydberg State Hyperfine Splitting in a Room-Temperature Vapour Cell","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"Atreju Tauschinsky, H. B. van Linden van den Heuvell, Richard Newell, R. J. C. Spreeuw","submitted_at":"2013-01-29T12:25:17Z","abstract_excerpt":"We present direct measurements of the hyperfine splitting of Rydberg states in rubidium 87 using Electromagnetically Induced Transparency (EIT) spectroscopy in a room-temperature vapour cell. With this method, and in spite of Doppler-broadening, line-widths of 3.7 MHz FWHM, i.e. significantly below the intermediate state natural linewidth are reached. This allows resolving hyperfine splittings for Rydberg s-states with n=20...24. With this method we are able to determine Rydberg state hyperfine splittings with an accuracy of approximately 100 kHz. Ultimately our method allows accuracies of ord"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6907","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:19:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9M+RWC4eb5r0I7O4ae4CcrIv/g2wTfHQzWFzeiZeJB+Qmto+Yn26p62wOez3kgs3tKQLA/0WgL8hzuzfZmxhDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T14:11:09.028247Z"},"content_sha256":"aaf945afe60d08f367c5ec51dc003e91c9a98095a84d1bb579af354e1ba53270","schema_version":"1.0","event_id":"sha256:aaf945afe60d08f367c5ec51dc003e91c9a98095a84d1bb579af354e1ba53270"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4/bundle.json","state_url":"https://pith.science/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-23T14:11:09Z","links":{"resolver":"https://pith.science/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4","bundle":"https://pith.science/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4/bundle.json","state":"https://pith.science/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HLSNEUHCZ53FOF6Z5AY2OAGRR4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:HLSNEUHCZ53FOF6Z5AY2OAGRR4","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":"8c88f61f25789885a973d10cd988762d03501d0bea7b31a082d2e7b4f3c1c8b8","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-29T12:25:17Z","title_canon_sha256":"67918d7e3a5e5faf6308a4d47db56a47f70d385e089d272f9d3795d19cb05d34"},"schema_version":"1.0","source":{"id":"1301.6907","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6907","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6907v1","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6907","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"HLSNEUHCZ53F","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"HLSNEUHCZ53FOF6Z","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"HLSNEUHC","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:aaf945afe60d08f367c5ec51dc003e91c9a98095a84d1bb579af354e1ba53270","target":"graph","created_at":"2026-05-18T03:19:04Z","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 present direct measurements of the hyperfine splitting of Rydberg states in rubidium 87 using Electromagnetically Induced Transparency (EIT) spectroscopy in a room-temperature vapour cell. With this method, and in spite of Doppler-broadening, line-widths of 3.7 MHz FWHM, i.e. significantly below the intermediate state natural linewidth are reached. This allows resolving hyperfine splittings for Rydberg s-states with n=20...24. With this method we are able to determine Rydberg state hyperfine splittings with an accuracy of approximately 100 kHz. Ultimately our method allows accuracies of ord","authors_text":"Atreju Tauschinsky, H. B. van Linden van den Heuvell, Richard Newell, R. J. C. Spreeuw","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-29T12:25:17Z","title":"High-Precision Measurement of Rydberg State Hyperfine Splitting in a Room-Temperature Vapour Cell"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6907","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":"sha256:7e97094257584386d39a9cdac5a18baa5c817e50f5ceaf0104bfd544c0674c29","target":"record","created_at":"2026-05-18T03:19:04Z","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":"8c88f61f25789885a973d10cd988762d03501d0bea7b31a082d2e7b4f3c1c8b8","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-29T12:25:17Z","title_canon_sha256":"67918d7e3a5e5faf6308a4d47db56a47f70d385e089d272f9d3795d19cb05d34"},"schema_version":"1.0","source":{"id":"1301.6907","kind":"arxiv","version":1}},"canonical_sha256":"3ae4d250e2cf765717d9e831a700d18f09e1c875591ff30d69a8975f4922be70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ae4d250e2cf765717d9e831a700d18f09e1c875591ff30d69a8975f4922be70","first_computed_at":"2026-05-18T03:19:04.479559Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:04.479559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6Sd3BQZSLY3kjjNaC6nanYQ6g2EV8essg4rqKb33OdztZOmaw1B/9g6AqdwJrArCXHSRgHpyZoamVVcmQOyMCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:04.480136Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.6907","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7e97094257584386d39a9cdac5a18baa5c817e50f5ceaf0104bfd544c0674c29","sha256:aaf945afe60d08f367c5ec51dc003e91c9a98095a84d1bb579af354e1ba53270"],"state_sha256":"75013d186292021d3cd9586e99bd9ddc766b20da871778922a6ade45c24ede42"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jMdxtwieFsFvGSRhpL05BF7xyJnUdbum8Oyy8X3dng7AE+qw6NDhzh1gehynWY8lhaZi9CoW1JCgv3gW1rQYDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T14:11:09.030254Z","bundle_sha256":"a68070881110f3471b96e515b155685fed848bf91dfb4db7406d0cd8b93fbea9"}}