{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:VQTGZFSDTT445NHTKC7IRUW7AV","short_pith_number":"pith:VQTGZFSD","schema_version":"1.0","canonical_sha256":"ac266c96439cf9ceb4f350be88d2df054b33beda5928c74cc1c921747652dbde","source":{"kind":"arxiv","id":"1208.1456","version":1},"attestation_state":"computed","paper":{"title":"Ytterbium in quantum gases and atomic clocks: van der Waals interactions and blackbody shifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas","physics.optics","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"Charles W. Clark, M. S. Safronova, S. G. Porsev","submitted_at":"2012-08-07T16:07:48Z","abstract_excerpt":"We evaluated the C_6 coefficients of Yb-Yb and Yb -alkali/group II van der Waals interactions with 2% uncertainty. The only existing results for such quantities are for the Yb-Yb dimer. Our value, C_6=1929(39) a.u., is in excellent agreement with the recent experimental determination of 1932(35) a.u. We have also developed a new approach for the calculation of the dynamic correction to the blackbody radiation shift. We have calculated this quantity for the Yb 6s^2 ^1S_0 - 6s6p ^3P_0 clock transition with 3.5% uncertainty. This reduces the fractional uncertainty due to the blackbody radiation s"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1208.1456","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-08-07T16:07:48Z","cross_cats_sorted":["cond-mat.quant-gas","physics.optics","quant-ph"],"title_canon_sha256":"a50ece0f6d15f11eb54a9ff7fd81e00d270f03822e80dd4aaf3332b810ef0e61","abstract_canon_sha256":"34474952c9e4cfa5a9c1f6c9f41839c5b734cbd307efe56ff56b28815ef7ebee"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:22.138132Z","signature_b64":"Pw7RQQyfwhz5Jsg1FebHVQiuuJzNSY2sVFge3akgrmSEiGKW8SX9l3OGE/WOZPf+82R3jgZIW3mLCvTMHh2OBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac266c96439cf9ceb4f350be88d2df054b33beda5928c74cc1c921747652dbde","last_reissued_at":"2026-05-18T01:55:22.137498Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:22.137498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ytterbium in quantum gases and atomic clocks: van der Waals interactions and blackbody shifts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas","physics.optics","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"Charles W. Clark, M. S. Safronova, S. G. Porsev","submitted_at":"2012-08-07T16:07:48Z","abstract_excerpt":"We evaluated the C_6 coefficients of Yb-Yb and Yb -alkali/group II van der Waals interactions with 2% uncertainty. The only existing results for such quantities are for the Yb-Yb dimer. Our value, C_6=1929(39) a.u., is in excellent agreement with the recent experimental determination of 1932(35) a.u. We have also developed a new approach for the calculation of the dynamic correction to the blackbody radiation shift. We have calculated this quantity for the Yb 6s^2 ^1S_0 - 6s6p ^3P_0 clock transition with 3.5% uncertainty. This reduces the fractional uncertainty due to the blackbody radiation s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1456","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1208.1456","created_at":"2026-05-18T01:55:22.137581+00:00"},{"alias_kind":"arxiv_version","alias_value":"1208.1456v1","created_at":"2026-05-18T01:55:22.137581+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.1456","created_at":"2026-05-18T01:55:22.137581+00:00"},{"alias_kind":"pith_short_12","alias_value":"VQTGZFSDTT44","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_16","alias_value":"VQTGZFSDTT445NHT","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_8","alias_value":"VQTGZFSD","created_at":"2026-05-18T12:27:25.539911+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV","json":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV.json","graph_json":"https://pith.science/api/pith-number/VQTGZFSDTT445NHTKC7IRUW7AV/graph.json","events_json":"https://pith.science/api/pith-number/VQTGZFSDTT445NHTKC7IRUW7AV/events.json","paper":"https://pith.science/paper/VQTGZFSD"},"agent_actions":{"view_html":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV","download_json":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV.json","view_paper":"https://pith.science/paper/VQTGZFSD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1208.1456&json=true","fetch_graph":"https://pith.science/api/pith-number/VQTGZFSDTT445NHTKC7IRUW7AV/graph.json","fetch_events":"https://pith.science/api/pith-number/VQTGZFSDTT445NHTKC7IRUW7AV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV/action/storage_attestation","attest_author":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV/action/author_attestation","sign_citation":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV/action/citation_signature","submit_replication":"https://pith.science/pith/VQTGZFSDTT445NHTKC7IRUW7AV/action/replication_record"}},"created_at":"2026-05-18T01:55:22.137581+00:00","updated_at":"2026-05-18T01:55:22.137581+00:00"}