{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FCXSDSYY62QPGDM27VWBZXE44H","short_pith_number":"pith:FCXSDSYY","canonical_record":{"source":{"id":"1707.05370","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-17T19:09:13Z","cross_cats_sorted":["cond-mat.quant-gas"],"title_canon_sha256":"f68b6d3948ea16cf793194dd816138352c7275811e986b7d1f603430cad97c95","abstract_canon_sha256":"843ed15d091dbc3b5ed9f0469a1afec73eebbfa221a686ac24f3006c1c139a67"},"schema_version":"1.0"},"canonical_sha256":"28af21cb18f6a0f30d9afd6c1cdc9ce1cd2493fca411a746dbe63e1a62e74b54","source":{"kind":"arxiv","id":"1707.05370","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.05370","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"arxiv_version","alias_value":"1707.05370v3","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.05370","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"pith_short_12","alias_value":"FCXSDSYY62QP","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FCXSDSYY62QPGDM2","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FCXSDSYY","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FCXSDSYY62QPGDM27VWBZXE44H","target":"record","payload":{"canonical_record":{"source":{"id":"1707.05370","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-17T19:09:13Z","cross_cats_sorted":["cond-mat.quant-gas"],"title_canon_sha256":"f68b6d3948ea16cf793194dd816138352c7275811e986b7d1f603430cad97c95","abstract_canon_sha256":"843ed15d091dbc3b5ed9f0469a1afec73eebbfa221a686ac24f3006c1c139a67"},"schema_version":"1.0"},"canonical_sha256":"28af21cb18f6a0f30d9afd6c1cdc9ce1cd2493fca411a746dbe63e1a62e74b54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:16.989000Z","signature_b64":"zZhyeYyTtQuzLAZNFUlJhxRHXY70RSVO5VAtj038brBjX96ctimIODeiv0V38REpK57Ek+k8JFnGBBfK2DBbCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28af21cb18f6a0f30d9afd6c1cdc9ce1cd2493fca411a746dbe63e1a62e74b54","last_reissued_at":"2026-05-18T00:20:16.988296Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:16.988296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.05370","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:20:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xVJ4EkURiIvCR5jvOs3K3k2KOwabbY13qFi9Aw7046VKk9tzdbVJrcImQZ+FNQYyH5JbtPeoPoD0JhmvKzFcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:01:14.271839Z"},"content_sha256":"f3c082659d77e994e7f663417d37dc6ee4c6d2994341c446fb325ff36d2a1d79","schema_version":"1.0","event_id":"sha256:f3c082659d77e994e7f663417d37dc6ee4c6d2994341c446fb325ff36d2a1d79"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FCXSDSYY62QPGDM27VWBZXE44H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A steady-state magneto-optical trap with 100 fold improved phase-space density","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas"],"primary_cat":"physics.atom-ph","authors_text":"Benjamin Pasquiou, Chun-Chia Chen, Florian Schreck, Shayne Bennetts","submitted_at":"2017-07-17T19:09:13Z","abstract_excerpt":"We demonstrate a continuously loaded $^{88}\\mathrm{Sr}$ magneto-optical trap (MOT) with a steady-state phase-space density of $1.3(2) \\times 10^{-3}$. This is two orders of magnitude higher than reported in previous steady-state MOTs. Our approach is to flow atoms through a series of spatially separated laser cooling stages before capturing them in a MOT operated on the 7.4-kHz linewidth Sr intercombination line using a hybrid slower+MOT configuration. We also demonstrate producing a Bose-Einstein condensate at the MOT location, despite the presence of laser cooling light on resonance with the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.05370","kind":"arxiv","version":3},"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":"2026-05-18T00:20:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MVvVANfFoem38uDSF4wT8O9Y6xxSIVGryt8KcGPuzrMz9jR1DTorOhWdtx1Pc037iZfTFzeho25dYme3kK70Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:01:14.272576Z"},"content_sha256":"6bd8fdd72578b313ef28103e54e85376dcf4f0162e08f5ea8b58429d6b743414","schema_version":"1.0","event_id":"sha256:6bd8fdd72578b313ef28103e54e85376dcf4f0162e08f5ea8b58429d6b743414"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FCXSDSYY62QPGDM27VWBZXE44H/bundle.json","state_url":"https://pith.science/pith/FCXSDSYY62QPGDM27VWBZXE44H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FCXSDSYY62QPGDM27VWBZXE44H/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":"2026-05-26T10:01:14Z","links":{"resolver":"https://pith.science/pith/FCXSDSYY62QPGDM27VWBZXE44H","bundle":"https://pith.science/pith/FCXSDSYY62QPGDM27VWBZXE44H/bundle.json","state":"https://pith.science/pith/FCXSDSYY62QPGDM27VWBZXE44H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FCXSDSYY62QPGDM27VWBZXE44H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FCXSDSYY62QPGDM27VWBZXE44H","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":"843ed15d091dbc3b5ed9f0469a1afec73eebbfa221a686ac24f3006c1c139a67","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-17T19:09:13Z","title_canon_sha256":"f68b6d3948ea16cf793194dd816138352c7275811e986b7d1f603430cad97c95"},"schema_version":"1.0","source":{"id":"1707.05370","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.05370","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"arxiv_version","alias_value":"1707.05370v3","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.05370","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"pith_short_12","alias_value":"FCXSDSYY62QP","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FCXSDSYY62QPGDM2","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FCXSDSYY","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:6bd8fdd72578b313ef28103e54e85376dcf4f0162e08f5ea8b58429d6b743414","target":"graph","created_at":"2026-05-18T00:20:16Z","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 demonstrate a continuously loaded $^{88}\\mathrm{Sr}$ magneto-optical trap (MOT) with a steady-state phase-space density of $1.3(2) \\times 10^{-3}$. This is two orders of magnitude higher than reported in previous steady-state MOTs. Our approach is to flow atoms through a series of spatially separated laser cooling stages before capturing them in a MOT operated on the 7.4-kHz linewidth Sr intercombination line using a hybrid slower+MOT configuration. We also demonstrate producing a Bose-Einstein condensate at the MOT location, despite the presence of laser cooling light on resonance with the","authors_text":"Benjamin Pasquiou, Chun-Chia Chen, Florian Schreck, Shayne Bennetts","cross_cats":["cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-17T19:09:13Z","title":"A steady-state magneto-optical trap with 100 fold improved phase-space density"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.05370","kind":"arxiv","version":3},"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:f3c082659d77e994e7f663417d37dc6ee4c6d2994341c446fb325ff36d2a1d79","target":"record","created_at":"2026-05-18T00:20:16Z","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":"843ed15d091dbc3b5ed9f0469a1afec73eebbfa221a686ac24f3006c1c139a67","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-17T19:09:13Z","title_canon_sha256":"f68b6d3948ea16cf793194dd816138352c7275811e986b7d1f603430cad97c95"},"schema_version":"1.0","source":{"id":"1707.05370","kind":"arxiv","version":3}},"canonical_sha256":"28af21cb18f6a0f30d9afd6c1cdc9ce1cd2493fca411a746dbe63e1a62e74b54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28af21cb18f6a0f30d9afd6c1cdc9ce1cd2493fca411a746dbe63e1a62e74b54","first_computed_at":"2026-05-18T00:20:16.988296Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:16.988296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zZhyeYyTtQuzLAZNFUlJhxRHXY70RSVO5VAtj038brBjX96ctimIODeiv0V38REpK57Ek+k8JFnGBBfK2DBbCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:16.989000Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.05370","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3c082659d77e994e7f663417d37dc6ee4c6d2994341c446fb325ff36d2a1d79","sha256:6bd8fdd72578b313ef28103e54e85376dcf4f0162e08f5ea8b58429d6b743414"],"state_sha256":"37dd220878be9881f989c6644fca42e547fadde027c345de92e8df88e14aec79"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1CUqZIYdZ4ZhRFEien8k63IwHXFenUs1EEgCDlyMkSExcc28MbA9oQhP7/wHZuCiY8E/tH/Hb1/+d1huYxV/Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:01:14.275562Z","bundle_sha256":"fe43371de3d3c711eb7894794ada9ee40d76b80477a04779528ce9939081837b"}}