{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:HEHA3LO6G7U3WIBTCVLFOJFFFD","short_pith_number":"pith:HEHA3LO6","schema_version":"1.0","canonical_sha256":"390e0dadde37e9bb203315565724a528d91b47eb8ac41c94c25d3234d7c11ae0","source":{"kind":"arxiv","id":"1208.4653","version":1},"attestation_state":"computed","paper":{"title":"Measurement of a magic-zero wavelength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Alexander D. Cronin, Ivan Hromada, Raisa Trubko, William F. Holmgren","submitted_at":"2012-08-23T01:11:01Z","abstract_excerpt":"Light at a magic-zero wavelength causes zero energy shift for an atom. We measured the longest magic-zero wavelength for ground state potassium atoms to be $\\lambda_\\textrm{zero}=768.971(1)$ nm, and we show how this provides an improved experimental benchmark for atomic structure calculations. This $\\lambda_\\textrm{zero}$ measurement determines the ratio of the potassium atom D1 and D2 line strengths with record precision. It also demonstrates a new application for atom interferometry, and we discuss how decoherence will fundamentally limit future measurements of magic-zero wavelengths."},"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":"1208.4653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-08-23T01:11:01Z","cross_cats_sorted":[],"title_canon_sha256":"7bb1c6e4530563fc815bb6005aec4ba46668f6705d4595dafe4e40004f342639","abstract_canon_sha256":"26ba6341b6f144fa0445bf67810a373b28b245e26bcd3c40e1c3b84dd98d8249"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:48:12.930701Z","signature_b64":"yIF1Bp41sQnvNdfxxuHnR0IdYzSq/SAxPkYMgEfScDpRlZs3/x3rT07WHNQ6TFLNIlMLWsKlfAi7Mk/ChUbmDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"390e0dadde37e9bb203315565724a528d91b47eb8ac41c94c25d3234d7c11ae0","last_reissued_at":"2026-05-18T03:48:12.930035Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:48:12.930035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of a magic-zero wavelength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Alexander D. Cronin, Ivan Hromada, Raisa Trubko, William F. Holmgren","submitted_at":"2012-08-23T01:11:01Z","abstract_excerpt":"Light at a magic-zero wavelength causes zero energy shift for an atom. We measured the longest magic-zero wavelength for ground state potassium atoms to be $\\lambda_\\textrm{zero}=768.971(1)$ nm, and we show how this provides an improved experimental benchmark for atomic structure calculations. This $\\lambda_\\textrm{zero}$ measurement determines the ratio of the potassium atom D1 and D2 line strengths with record precision. It also demonstrates a new application for atom interferometry, and we discuss how decoherence will fundamentally limit future measurements of magic-zero wavelengths."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4653","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":"1208.4653","created_at":"2026-05-18T03:48:12.930144+00:00"},{"alias_kind":"arxiv_version","alias_value":"1208.4653v1","created_at":"2026-05-18T03:48:12.930144+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4653","created_at":"2026-05-18T03:48:12.930144+00:00"},{"alias_kind":"pith_short_12","alias_value":"HEHA3LO6G7U3","created_at":"2026-05-18T12:27:09.501522+00:00"},{"alias_kind":"pith_short_16","alias_value":"HEHA3LO6G7U3WIBT","created_at":"2026-05-18T12:27:09.501522+00:00"},{"alias_kind":"pith_short_8","alias_value":"HEHA3LO6","created_at":"2026-05-18T12:27:09.501522+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/HEHA3LO6G7U3WIBTCVLFOJFFFD","json":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD.json","graph_json":"https://pith.science/api/pith-number/HEHA3LO6G7U3WIBTCVLFOJFFFD/graph.json","events_json":"https://pith.science/api/pith-number/HEHA3LO6G7U3WIBTCVLFOJFFFD/events.json","paper":"https://pith.science/paper/HEHA3LO6"},"agent_actions":{"view_html":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD","download_json":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD.json","view_paper":"https://pith.science/paper/HEHA3LO6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1208.4653&json=true","fetch_graph":"https://pith.science/api/pith-number/HEHA3LO6G7U3WIBTCVLFOJFFFD/graph.json","fetch_events":"https://pith.science/api/pith-number/HEHA3LO6G7U3WIBTCVLFOJFFFD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD/action/storage_attestation","attest_author":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD/action/author_attestation","sign_citation":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD/action/citation_signature","submit_replication":"https://pith.science/pith/HEHA3LO6G7U3WIBTCVLFOJFFFD/action/replication_record"}},"created_at":"2026-05-18T03:48:12.930144+00:00","updated_at":"2026-05-18T03:48:12.930144+00:00"}