{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:GNMCPWDSXMCPZE6URJ7TRW2UZM","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":"f5f54293f0a7eb57ae61d27359369b567048e1f85306ee9a56c42741dd955db5","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2006-09-11T19:04:22Z","title_canon_sha256":"3ceeb299b6b70b80a287ebc353cb3ae6ff9dbdbe92e7578079b53ce541a4f7d6"},"schema_version":"1.0","source":{"id":"cond-mat/0609259","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0609259","created_at":"2026-05-18T03:00:40Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0609259v1","created_at":"2026-05-18T03:00:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0609259","created_at":"2026-05-18T03:00:40Z"},{"alias_kind":"pith_short_12","alias_value":"GNMCPWDSXMCP","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"GNMCPWDSXMCPZE6U","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"GNMCPWDS","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:e527e33a8158829b262d72039bd03b2696a332c40054309a2c5d82b8e8908b35","target":"graph","created_at":"2026-05-18T03:00:40Z","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":"In this article we review our recent experiments with a 40K-87Rb mixture. We demonstrate rapid sympathetic cooling of a 40K-87Rb mixture to dual quantum degeneracy on an atom chip. We also provide details on efficient BEC production, species-selective magnetic confinement, and progress toward integration of an optical lattice with an atom chip. The efficiency of our evaporation allows us to reach dual degeneracy after just 6 s of evaporation - more rapidly than in conventional magnetic traps. When optimizing evaporative cooling for efficient evaporation of 87Rb alone we achieve BEC after just ","authors_text":"A. Stummer, B. Cieslak, J. H. Thywissen, L. J. LeBlanc, M. H. T. Extavour, S. Aubin, S. Myrskog, T. Schumm","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2006-09-11T19:04:22Z","title":"Dual-species quantum degeneracy of potassium-40 and rubidium-87 on an atom chip"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0609259","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:a76bf3dd4e76b01e4e5b611d564bf306586d245728af66fb30cc547ca80f9814","target":"record","created_at":"2026-05-18T03:00:40Z","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":"f5f54293f0a7eb57ae61d27359369b567048e1f85306ee9a56c42741dd955db5","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2006-09-11T19:04:22Z","title_canon_sha256":"3ceeb299b6b70b80a287ebc353cb3ae6ff9dbdbe92e7578079b53ce541a4f7d6"},"schema_version":"1.0","source":{"id":"cond-mat/0609259","kind":"arxiv","version":1}},"canonical_sha256":"335827d872bb04fc93d48a7f38db54cb0319b26bc8b038d2f144efeaced0a9d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"335827d872bb04fc93d48a7f38db54cb0319b26bc8b038d2f144efeaced0a9d0","first_computed_at":"2026-05-18T03:00:40.213485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:00:40.213485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hcXL2/lNYlhPeuUhzhFX0JW/vJxnRUYdPbZJdlCyObVt4iyxqEFx1CYnaGPkN2221Ui8wuvu0q2LOLUD99MTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:00:40.214221Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0609259","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a76bf3dd4e76b01e4e5b611d564bf306586d245728af66fb30cc547ca80f9814","sha256:e527e33a8158829b262d72039bd03b2696a332c40054309a2c5d82b8e8908b35"],"state_sha256":"7297939d72e90d1601143a760e47bd4a1cdbf32a8ca2984b672c18467de72aff"}