{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:JX6VTLTZKHI364W5XIOB5X6Q2Q","short_pith_number":"pith:JX6VTLTZ","canonical_record":{"source":{"id":"physics/0407021","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.atom-ph","submitted_at":"2004-07-02T23:41:37Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"bae8c943cd5ba8b1b27b321cf3dbb535a010fc8c6c016652f83071752de058a7","abstract_canon_sha256":"25133e5a6ede16b90188ea312f3497cdfd8a450c08cd38c12ebc7d69ea61e216"},"schema_version":"1.0"},"canonical_sha256":"4dfd59ae7951d1bf72ddba1c1edfd0d407765dfe650c4ead69482691e8448f8a","source":{"kind":"arxiv","id":"physics/0407021","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0407021","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0407021v1","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0407021","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"pith_short_12","alias_value":"JX6VTLTZKHI3","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"pith_short_16","alias_value":"JX6VTLTZKHI364W5","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"pith_short_8","alias_value":"JX6VTLTZ","created_at":"2026-07-04T16:49:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:JX6VTLTZKHI364W5XIOB5X6Q2Q","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0407021","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.atom-ph","submitted_at":"2004-07-02T23:41:37Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"bae8c943cd5ba8b1b27b321cf3dbb535a010fc8c6c016652f83071752de058a7","abstract_canon_sha256":"25133e5a6ede16b90188ea312f3497cdfd8a450c08cd38c12ebc7d69ea61e216"},"schema_version":"1.0"},"canonical_sha256":"4dfd59ae7951d1bf72ddba1c1edfd0d407765dfe650c4ead69482691e8448f8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:49:53.626260Z","signature_b64":"OEWBzFERw6gJIPTmhRNMSJvBw1OjhbLpE7cxqmfRjmfRUxFM+r0ntjlFic6CpTU0bu8kSPQlMJhAqwInSzMsDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4dfd59ae7951d1bf72ddba1c1edfd0d407765dfe650c4ead69482691e8448f8a","last_reissued_at":"2026-07-04T16:49:53.625848Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:49:53.625848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0407021","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":"2026-07-04T16:49:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OyoIniDof8RG8ZgpPLlqEENzqySLu4BowPYoWjJxewjqmHExmkZaWUeqkhjEHMQG26lottCidE0oH9ZIh+GwDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:38:49.832912Z"},"content_sha256":"96473231a4cf715d521d625d898a6e64052c78fc218d3f2d84b94be7f9252970","schema_version":"1.0","event_id":"sha256:96473231a4cf715d521d625d898a6e64052c78fc218d3f2d84b94be7f9252970"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:JX6VTLTZKHI364W5XIOB5X6Q2Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Narrow Line Cooling and Momentum-Space Crystals","license":"","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.atom-ph","authors_text":"Andrew D. Ludlow, Jun Ye, Martin M. Boyd, Tetsuya Ido, Thomas H. Loftus","submitted_at":"2004-07-02T23:41:37Z","abstract_excerpt":"Narrow line laser cooling is advancing the frontier for experiments ranging from studies of fundamental atomic physics to high precision optical frequency standards. In this paper, we present an extensive description of the systems and techniques necessary to realize 689 nm 1S0 - 3P1 narrow line cooling of atomic 88Sr. Narrow line cooling and trapping dynamics are also studied in detail. By controlling the relative size of the power broadened transition linewidth and the single-photon recoil frequency shift, we show that it is possible to continuously bridge the gap between semiclassical and q"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0407021","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/physics/0407021/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:49:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R2KLLVcg7t9sYlmj6TSolgkgpTZAMJx3oo0Bx9otBemFifZN8+qIRVbXDmAl9I8lHukORA80XMVEONSpZUdeDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:38:49.833876Z"},"content_sha256":"febaa482ec4fcdf104892631065375d351f46577c7fc2aac818e4339e8b9bb84","schema_version":"1.0","event_id":"sha256:febaa482ec4fcdf104892631065375d351f46577c7fc2aac818e4339e8b9bb84"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q/bundle.json","state_url":"https://pith.science/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q/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":"2026-08-05T15:38:49Z","links":{"resolver":"https://pith.science/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q","bundle":"https://pith.science/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q/bundle.json","state":"https://pith.science/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JX6VTLTZKHI364W5XIOB5X6Q2Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:JX6VTLTZKHI364W5XIOB5X6Q2Q","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":"25133e5a6ede16b90188ea312f3497cdfd8a450c08cd38c12ebc7d69ea61e216","cross_cats_sorted":["physics.optics"],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2004-07-02T23:41:37Z","title_canon_sha256":"bae8c943cd5ba8b1b27b321cf3dbb535a010fc8c6c016652f83071752de058a7"},"schema_version":"1.0","source":{"id":"physics/0407021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0407021","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0407021v1","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0407021","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"pith_short_12","alias_value":"JX6VTLTZKHI3","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"pith_short_16","alias_value":"JX6VTLTZKHI364W5","created_at":"2026-07-04T16:49:53Z"},{"alias_kind":"pith_short_8","alias_value":"JX6VTLTZ","created_at":"2026-07-04T16:49:53Z"}],"graph_snapshots":[{"event_id":"sha256:febaa482ec4fcdf104892631065375d351f46577c7fc2aac818e4339e8b9bb84","target":"graph","created_at":"2026-07-04T16:49:53Z","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/physics/0407021/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Narrow line laser cooling is advancing the frontier for experiments ranging from studies of fundamental atomic physics to high precision optical frequency standards. In this paper, we present an extensive description of the systems and techniques necessary to realize 689 nm 1S0 - 3P1 narrow line cooling of atomic 88Sr. Narrow line cooling and trapping dynamics are also studied in detail. By controlling the relative size of the power broadened transition linewidth and the single-photon recoil frequency shift, we show that it is possible to continuously bridge the gap between semiclassical and q","authors_text":"Andrew D. Ludlow, Jun Ye, Martin M. Boyd, Tetsuya Ido, Thomas H. Loftus","cross_cats":["physics.optics"],"headline":"","license":"","primary_cat":"physics.atom-ph","submitted_at":"2004-07-02T23:41:37Z","title":"Narrow Line Cooling and Momentum-Space Crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0407021","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":"sha256:96473231a4cf715d521d625d898a6e64052c78fc218d3f2d84b94be7f9252970","target":"record","created_at":"2026-07-04T16:49:53Z","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":"25133e5a6ede16b90188ea312f3497cdfd8a450c08cd38c12ebc7d69ea61e216","cross_cats_sorted":["physics.optics"],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2004-07-02T23:41:37Z","title_canon_sha256":"bae8c943cd5ba8b1b27b321cf3dbb535a010fc8c6c016652f83071752de058a7"},"schema_version":"1.0","source":{"id":"physics/0407021","kind":"arxiv","version":1}},"canonical_sha256":"4dfd59ae7951d1bf72ddba1c1edfd0d407765dfe650c4ead69482691e8448f8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4dfd59ae7951d1bf72ddba1c1edfd0d407765dfe650c4ead69482691e8448f8a","first_computed_at":"2026-07-04T16:49:53.625848Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:49:53.625848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OEWBzFERw6gJIPTmhRNMSJvBw1OjhbLpE7cxqmfRjmfRUxFM+r0ntjlFic6CpTU0bu8kSPQlMJhAqwInSzMsDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:49:53.626260Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0407021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96473231a4cf715d521d625d898a6e64052c78fc218d3f2d84b94be7f9252970","sha256:febaa482ec4fcdf104892631065375d351f46577c7fc2aac818e4339e8b9bb84"],"state_sha256":"e2b48aa9bccc825870c67e1d0df854048b85160f67e0d927ba7fca8b4b6cb584"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FHhbFTCB0cbU+cUiFXDttPPHLHx0337fsU1CLgqclIqIxwbxzfAKp74zY/4bUuNtpMy5z6RfSne6LINZhF+PAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T15:38:49.841260Z","bundle_sha256":"c4344e0a81457a643303b20313907457226fbe6d153be92dfe5a76f2097bdc5e"}}