{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:S5XFZZ7DD6O6SIMRKOOETVO5DH","short_pith_number":"pith:S5XFZZ7D","canonical_record":{"source":{"id":"1012.5433","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-24T20:57:48Z","cross_cats_sorted":[],"title_canon_sha256":"5c43b2a77425f5786a536779e172d9f262da667523060efb2abc337586d4e2e7","abstract_canon_sha256":"aef4f49ed2367c5730d44590978a0b96cc2d13d7e4006d786f2f945cf2a6ce0e"},"schema_version":"1.0"},"canonical_sha256":"976e5ce7e31f9de92191539c49d5dd19f96d18db3ab22a1d757b79e2e28053b1","source":{"kind":"arxiv","id":"1012.5433","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.5433","created_at":"2026-05-18T02:04:17Z"},{"alias_kind":"arxiv_version","alias_value":"1012.5433v1","created_at":"2026-05-18T02:04:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.5433","created_at":"2026-05-18T02:04:17Z"},{"alias_kind":"pith_short_12","alias_value":"S5XFZZ7DD6O6","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"S5XFZZ7DD6O6SIMR","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"S5XFZZ7D","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:S5XFZZ7DD6O6SIMRKOOETVO5DH","target":"record","payload":{"canonical_record":{"source":{"id":"1012.5433","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-24T20:57:48Z","cross_cats_sorted":[],"title_canon_sha256":"5c43b2a77425f5786a536779e172d9f262da667523060efb2abc337586d4e2e7","abstract_canon_sha256":"aef4f49ed2367c5730d44590978a0b96cc2d13d7e4006d786f2f945cf2a6ce0e"},"schema_version":"1.0"},"canonical_sha256":"976e5ce7e31f9de92191539c49d5dd19f96d18db3ab22a1d757b79e2e28053b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:17.688630Z","signature_b64":"9kikqHgK6IfGAzlnvoAeu0xAYTBE2fCtQqujLtxN6IpufDKieCc3RfbCI/WtIl/3H4yl0XG0grk/ltZ4XNbpBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"976e5ce7e31f9de92191539c49d5dd19f96d18db3ab22a1d757b79e2e28053b1","last_reissued_at":"2026-05-18T02:04:17.687904Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:17.687904Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.5433","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":"2026-05-18T02:04:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5PI5axhpQX6g4n2x14KXMgDcLFPdvkjSaTCCGFZsEg/j4G0IEdqo84QTMtavzNppRNxgS6emXBBSDYE01Zz6Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:41:17.583753Z"},"content_sha256":"b93b6f707249652daad0611e9eeca44317e9c76b96f88ac4ba31fc19ee8ed39b","schema_version":"1.0","event_id":"sha256:b93b6f707249652daad0611e9eeca44317e9c76b96f88ac4ba31fc19ee8ed39b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:S5XFZZ7DD6O6SIMRKOOETVO5DH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sub-Doppler Laser Cooling of Thulium Atoms in a Magneto-optical Trap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Akimov, A. Sokolov, D. Sukachev, K. Chebakov, N. Kolachevsky, S. Kanorsky, V. Sorokin","submitted_at":"2010-12-24T20:57:48Z","abstract_excerpt":"We have experimentally studied sub-Doppler laser cooling in a magneto-optical trap for thulium atoms working at the wavelength of 410.6\\,nm. Without any dedicated molasses period of sub-Doppler cooling, the cloud of $3\\times 10^6$ atoms at the temperature of 25(5)\\,$\\mu$K was observed. The measured temperature is significantly lower than the Doppler limit of 240$\\mu$K for the cooling transition at 410.6\\,nm. High efficiency of the sub-Doppler cooling process is due to a near-degeneracy of the Land\\'e-$g$ factors of the lower $4f^{13}6s^{2}\\, (J\\,=\\,{7}/{2})$ and the upper $4f^{12}5d_{3/2}6s^{2"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.5433","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":"2026-05-18T02:04:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"enD+PDbUgJzgCUUWywaa54pNJp02ZfK9f10pbaWzah2SiXtSQrTm/xv04FvKQIrRFMvTaWiCBQ/ji/0OHP8uCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:41:17.584281Z"},"content_sha256":"21bdc5fcf42615bb8e773b5a22163a6ab1b3560da41805071d77b5b21dd1a880","schema_version":"1.0","event_id":"sha256:21bdc5fcf42615bb8e773b5a22163a6ab1b3560da41805071d77b5b21dd1a880"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH/bundle.json","state_url":"https://pith.science/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH/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":"2026-06-08T19:41:17Z","links":{"resolver":"https://pith.science/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH","bundle":"https://pith.science/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH/bundle.json","state":"https://pith.science/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S5XFZZ7DD6O6SIMRKOOETVO5DH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:S5XFZZ7DD6O6SIMRKOOETVO5DH","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":"aef4f49ed2367c5730d44590978a0b96cc2d13d7e4006d786f2f945cf2a6ce0e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-24T20:57:48Z","title_canon_sha256":"5c43b2a77425f5786a536779e172d9f262da667523060efb2abc337586d4e2e7"},"schema_version":"1.0","source":{"id":"1012.5433","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.5433","created_at":"2026-05-18T02:04:17Z"},{"alias_kind":"arxiv_version","alias_value":"1012.5433v1","created_at":"2026-05-18T02:04:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.5433","created_at":"2026-05-18T02:04:17Z"},{"alias_kind":"pith_short_12","alias_value":"S5XFZZ7DD6O6","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"S5XFZZ7DD6O6SIMR","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"S5XFZZ7D","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:21bdc5fcf42615bb8e773b5a22163a6ab1b3560da41805071d77b5b21dd1a880","target":"graph","created_at":"2026-05-18T02:04:17Z","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 have experimentally studied sub-Doppler laser cooling in a magneto-optical trap for thulium atoms working at the wavelength of 410.6\\,nm. Without any dedicated molasses period of sub-Doppler cooling, the cloud of $3\\times 10^6$ atoms at the temperature of 25(5)\\,$\\mu$K was observed. The measured temperature is significantly lower than the Doppler limit of 240$\\mu$K for the cooling transition at 410.6\\,nm. High efficiency of the sub-Doppler cooling process is due to a near-degeneracy of the Land\\'e-$g$ factors of the lower $4f^{13}6s^{2}\\, (J\\,=\\,{7}/{2})$ and the upper $4f^{12}5d_{3/2}6s^{2","authors_text":"A. Akimov, A. Sokolov, D. Sukachev, K. Chebakov, N. Kolachevsky, S. Kanorsky, V. Sorokin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-24T20:57:48Z","title":"Sub-Doppler Laser Cooling of Thulium Atoms in a Magneto-optical Trap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.5433","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:b93b6f707249652daad0611e9eeca44317e9c76b96f88ac4ba31fc19ee8ed39b","target":"record","created_at":"2026-05-18T02:04:17Z","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":"aef4f49ed2367c5730d44590978a0b96cc2d13d7e4006d786f2f945cf2a6ce0e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-24T20:57:48Z","title_canon_sha256":"5c43b2a77425f5786a536779e172d9f262da667523060efb2abc337586d4e2e7"},"schema_version":"1.0","source":{"id":"1012.5433","kind":"arxiv","version":1}},"canonical_sha256":"976e5ce7e31f9de92191539c49d5dd19f96d18db3ab22a1d757b79e2e28053b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"976e5ce7e31f9de92191539c49d5dd19f96d18db3ab22a1d757b79e2e28053b1","first_computed_at":"2026-05-18T02:04:17.687904Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:17.687904Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9kikqHgK6IfGAzlnvoAeu0xAYTBE2fCtQqujLtxN6IpufDKieCc3RfbCI/WtIl/3H4yl0XG0grk/ltZ4XNbpBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:17.688630Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.5433","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b93b6f707249652daad0611e9eeca44317e9c76b96f88ac4ba31fc19ee8ed39b","sha256:21bdc5fcf42615bb8e773b5a22163a6ab1b3560da41805071d77b5b21dd1a880"],"state_sha256":"49269bbf12c7b243c11d25fee64eb25ca6dd6d4e3a3738fed86a6da58c6541b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FEIkDqMhbMx7uoITMzSKNqToeu0owHcXHOxFIVBaL5ruwyxyB9mWRHYEorK6rEZKotMOpjq4UF/JbwFav7oKAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T19:41:17.587557Z","bundle_sha256":"38b4e866659050babacde599fb745c90501373ad84d9a41d3f78a5db0d8508b5"}}