{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AQ2MGUBYSBDZ5HAZ7DVPESNP6A","short_pith_number":"pith:AQ2MGUBY","canonical_record":{"source":{"id":"1804.08526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-23T15:57:40Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"9587f250f091020b58edbc4a57ee5ad09859db3d5ecd1c42918b6ccea30f4e58","abstract_canon_sha256":"40ca85a113dd522aa5ef7f4c90ec93c4a1911861700a86a34b07ee68a9752cd9"},"schema_version":"1.0"},"canonical_sha256":"0434c3503890479e9c19f8eaf249aff00080055fe4c95147bc8f5974af299145","source":{"kind":"arxiv","id":"1804.08526","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08526","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08526v1","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08526","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"AQ2MGUBYSBDZ","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AQ2MGUBYSBDZ5HAZ","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AQ2MGUBY","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AQ2MGUBYSBDZ5HAZ7DVPESNP6A","target":"record","payload":{"canonical_record":{"source":{"id":"1804.08526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-23T15:57:40Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"9587f250f091020b58edbc4a57ee5ad09859db3d5ecd1c42918b6ccea30f4e58","abstract_canon_sha256":"40ca85a113dd522aa5ef7f4c90ec93c4a1911861700a86a34b07ee68a9752cd9"},"schema_version":"1.0"},"canonical_sha256":"0434c3503890479e9c19f8eaf249aff00080055fe4c95147bc8f5974af299145","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:01.267022Z","signature_b64":"bn4ttnbIM75RPegPqei5OpRZPFebA/VC+c1BdvPwr0D8E8u3ZQviywhcZcpCL/5pW4LcHgM3lNU4Kb6EHSXtAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0434c3503890479e9c19f8eaf249aff00080055fe4c95147bc8f5974af299145","last_reissued_at":"2026-05-18T00:02:01.266452Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:01.266452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.08526","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":"2026-05-18T00:02:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TY0bJ+KJHkXWCpwwYNbTANKtdRUav3+4WLRzS/RNdhep4PDCP4AI4KcofQrAutSnUvwMZz0YYk3nZawPUDTvAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T17:50:56.998504Z"},"content_sha256":"a593dfd6e625de6be0560f9fcce7c98078fbbb25a736ce62e43f4cd64d491a73","schema_version":"1.0","event_id":"sha256:a593dfd6e625de6be0560f9fcce7c98078fbbb25a736ce62e43f4cd64d491a73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AQ2MGUBYSBDZ5HAZ7DVPESNP6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong Purcell effect on a neutral atom trapped in an open fiber cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Deepak Pandey, Dieter Meschede, Jose Gallego, Miguel Martinez-Dorantes, Tobias Macha, Wolfgang Alt","submitted_at":"2018-04-23T15:57:40Z","abstract_excerpt":"We observe a sixfold Purcell broadening of the D$_2$ line of an optically trapped $^{87}\\text{Rb}$ atom strongly coupled to a fiber cavity. Under external illumination by a near-resonant laser, up to $90\\%$ of the atom's fluorescence is emitted into the resonant cavity mode. The sub-Poissonian statistics of the cavity output and the Purcell enhancement of the atomic decay rate are confirmed by the observation of a strongly narrowed antibunching dip in the photon autocorrelation function. The photon leakage through the higher-transmission mirror of the single-sided resonator is the dominant con"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08526","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":"2026-05-18T00:02:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+LYRyQWkaWCH3J0saoaNwWhzvJiEzsPL2QMZIlAxtKDrPp1OFusYh7HkNgyYg39E9CPYNRBO2FXj7vFk68dlCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T17:50:56.998877Z"},"content_sha256":"9136de927d5210f59dd2fd2fa630d8c84e047e67a324fb37e88786a898436119","schema_version":"1.0","event_id":"sha256:9136de927d5210f59dd2fd2fa630d8c84e047e67a324fb37e88786a898436119"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A/bundle.json","state_url":"https://pith.science/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A/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":"2026-06-03T17:50:56Z","links":{"resolver":"https://pith.science/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A","bundle":"https://pith.science/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A/bundle.json","state":"https://pith.science/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AQ2MGUBYSBDZ5HAZ7DVPESNP6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AQ2MGUBYSBDZ5HAZ7DVPESNP6A","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":"40ca85a113dd522aa5ef7f4c90ec93c4a1911861700a86a34b07ee68a9752cd9","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-23T15:57:40Z","title_canon_sha256":"9587f250f091020b58edbc4a57ee5ad09859db3d5ecd1c42918b6ccea30f4e58"},"schema_version":"1.0","source":{"id":"1804.08526","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08526","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08526v1","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08526","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"AQ2MGUBYSBDZ","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AQ2MGUBYSBDZ5HAZ","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AQ2MGUBY","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:9136de927d5210f59dd2fd2fa630d8c84e047e67a324fb37e88786a898436119","target":"graph","created_at":"2026-05-18T00:02:01Z","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 observe a sixfold Purcell broadening of the D$_2$ line of an optically trapped $^{87}\\text{Rb}$ atom strongly coupled to a fiber cavity. Under external illumination by a near-resonant laser, up to $90\\%$ of the atom's fluorescence is emitted into the resonant cavity mode. The sub-Poissonian statistics of the cavity output and the Purcell enhancement of the atomic decay rate are confirmed by the observation of a strongly narrowed antibunching dip in the photon autocorrelation function. The photon leakage through the higher-transmission mirror of the single-sided resonator is the dominant con","authors_text":"Deepak Pandey, Dieter Meschede, Jose Gallego, Miguel Martinez-Dorantes, Tobias Macha, Wolfgang Alt","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-23T15:57:40Z","title":"Strong Purcell effect on a neutral atom trapped in an open fiber cavity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08526","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:a593dfd6e625de6be0560f9fcce7c98078fbbb25a736ce62e43f4cd64d491a73","target":"record","created_at":"2026-05-18T00:02:01Z","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":"40ca85a113dd522aa5ef7f4c90ec93c4a1911861700a86a34b07ee68a9752cd9","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-23T15:57:40Z","title_canon_sha256":"9587f250f091020b58edbc4a57ee5ad09859db3d5ecd1c42918b6ccea30f4e58"},"schema_version":"1.0","source":{"id":"1804.08526","kind":"arxiv","version":1}},"canonical_sha256":"0434c3503890479e9c19f8eaf249aff00080055fe4c95147bc8f5974af299145","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0434c3503890479e9c19f8eaf249aff00080055fe4c95147bc8f5974af299145","first_computed_at":"2026-05-18T00:02:01.266452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:01.266452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bn4ttnbIM75RPegPqei5OpRZPFebA/VC+c1BdvPwr0D8E8u3ZQviywhcZcpCL/5pW4LcHgM3lNU4Kb6EHSXtAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:01.267022Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.08526","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a593dfd6e625de6be0560f9fcce7c98078fbbb25a736ce62e43f4cd64d491a73","sha256:9136de927d5210f59dd2fd2fa630d8c84e047e67a324fb37e88786a898436119"],"state_sha256":"2ac07f18c7e0d77273f333e711d6c80841b5e308c0b53203ff8033fb604d06ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lMc/DfScUNA5JBmeKnryvdJQGbz0TGv3jvH7JreL7Gi+71zqYlxCO+fWzCw6mKib52/NzIjSSaHf/jPQuuhDCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T17:50:57.000813Z","bundle_sha256":"4a226990c13870e4962101e0561104046a16a4b761e74175a17d8e990e595560"}}