{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JSFRRIA62JUU2DCG6SMNLQGLHK","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":"a1852df6be0eba211f7ab8517ecd17adc7408373f2eb55c8567a53f0f6ac13db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-03-02T01:46:27Z","title_canon_sha256":"9edfaa18a422e63c20c79bf445c9ee7a3e58cfcb82da70d9eb0f35ab3564890d"},"schema_version":"1.0","source":{"id":"1703.00580","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.00580","created_at":"2026-05-18T00:26:00Z"},{"alias_kind":"arxiv_version","alias_value":"1703.00580v1","created_at":"2026-05-18T00:26:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.00580","created_at":"2026-05-18T00:26:00Z"},{"alias_kind":"pith_short_12","alias_value":"JSFRRIA62JUU","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JSFRRIA62JUU2DCG","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JSFRRIA6","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:1f47d3e5bbe7565b875653caeaa594f8f9ef4bd35cb0e793fcd210d7101a4a33","target":"graph","created_at":"2026-05-18T00:26:00Z","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":"The ability to cool atoms below the Doppler limit -- the minimum temperature reachable by Doppler cooling -- has been essential to most experiments with quantum degenerate gases, optical lattices and atomic fountains, among many other applications. A broad set of new applications await ultracold molecules, and the extension of laser cooling to molecules has begun. A molecular magneto-optical trap has been demonstrated, where molecules approached the Doppler limit. However, the sub-Doppler temperatures required for most applications have not yet been reached. Here we cool molecules to 50 uK, we","authors_text":"B. E. Sauer, E. A. Hinds, H. J. Williams, L. Caldwell, M. Hambach, M. R. Tarbutt, N. J. Fitch, S. Truppe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-03-02T01:46:27Z","title":"Molecules cooled below the Doppler limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.00580","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":"sha256:44678122b94f1627fc656c7dd27d7f3217c35aa347475bf89b4c2565e8d4a161","target":"record","created_at":"2026-05-18T00:26:00Z","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":"a1852df6be0eba211f7ab8517ecd17adc7408373f2eb55c8567a53f0f6ac13db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-03-02T01:46:27Z","title_canon_sha256":"9edfaa18a422e63c20c79bf445c9ee7a3e58cfcb82da70d9eb0f35ab3564890d"},"schema_version":"1.0","source":{"id":"1703.00580","kind":"arxiv","version":1}},"canonical_sha256":"4c8b18a01ed2694d0c46f498d5c0cb3a99b08600db8baabcbea365290679992b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c8b18a01ed2694d0c46f498d5c0cb3a99b08600db8baabcbea365290679992b","first_computed_at":"2026-05-18T00:26:00.977761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:00.977761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w4tIOVvvdTtr4g9MM6UZKC1D38MTYYODCy41o1mOlvg3PdSOBhL43Ju4IRJ3D13sti0TvFb6QiwbNHP0T4bNAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:00.978455Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.00580","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:44678122b94f1627fc656c7dd27d7f3217c35aa347475bf89b4c2565e8d4a161","sha256:1f47d3e5bbe7565b875653caeaa594f8f9ef4bd35cb0e793fcd210d7101a4a33"],"state_sha256":"19ba5f2993f0b2c7f1670cccd3cd7f168074152b305afc0b89546574deddf5d5"}