{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2001:4W4KILNWNT36CPRY7UPQ4XZVY5","short_pith_number":"pith:4W4KILNW","schema_version":"1.0","canonical_sha256":"e5b8a42db66cf7e13e38fd1f0e5f35c776c4dbfa6359ac501f1a74ceee38e90e","source":{"kind":"arxiv","id":"hep-ph/0111393","version":1},"attestation_state":"computed","paper":{"title":"Measurement of Direct CP Violation by NA48","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cambridge, CERN, Dubna, Edinburgh, Ferrara, Firenze, Giuseppina Anzivino (the NA48 Collaboration: Cagliari, Mainz, Orsay, Perugia, Pisa, Saclay, Siegen, Torino, Warszawa, Wien.)","submitted_at":"2001-11-29T08:27:57Z","abstract_excerpt":"The NA48 experiment at the CERN SPS aims to search for direct CP violation in the $K^0$ system through the measurement of ${\\rm Re}(\\epsilon'/ \\epsilon)$ with high accuracy. In 1999 the NA48 collaboration has published its first measuremen based on 1997 data. A new result, based on 1998 and 1999 data, is presented in this article. The result, combined with 1997 data, ${\\rm Re}(\\epsilon'/\\epsilon) = (15.3 \\pm 2.6)\\times 10^{-4}$, contributes to the precise determination of the size of direct CP violation."},"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":"hep-ph/0111393","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-11-29T08:27:57Z","cross_cats_sorted":[],"title_canon_sha256":"6e48e1e4d6b06654a18d53ac21c36632634042876e65a6bf250eabc41aedd66c","abstract_canon_sha256":"ce55e23dcef6a3931eb56b5b6f2b92be86294ada57458109bd2ec9f106f93f73"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:12.971651Z","signature_b64":"pWdEdASNdHQIjbH7lYDGMA4tiGfoWjXz639PeVypmp8r4z7d2oaOBbM822tV0HdLywj1WYfRgrrSkSVYphB1CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5b8a42db66cf7e13e38fd1f0e5f35c776c4dbfa6359ac501f1a74ceee38e90e","last_reissued_at":"2026-05-18T00:37:12.970831Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:12.970831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of Direct CP Violation by NA48","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cambridge, CERN, Dubna, Edinburgh, Ferrara, Firenze, Giuseppina Anzivino (the NA48 Collaboration: Cagliari, Mainz, Orsay, Perugia, Pisa, Saclay, Siegen, Torino, Warszawa, Wien.)","submitted_at":"2001-11-29T08:27:57Z","abstract_excerpt":"The NA48 experiment at the CERN SPS aims to search for direct CP violation in the $K^0$ system through the measurement of ${\\rm Re}(\\epsilon'/ \\epsilon)$ with high accuracy. In 1999 the NA48 collaboration has published its first measuremen based on 1997 data. A new result, based on 1998 and 1999 data, is presented in this article. The result, combined with 1997 data, ${\\rm Re}(\\epsilon'/\\epsilon) = (15.3 \\pm 2.6)\\times 10^{-4}$, contributes to the precise determination of the size of direct CP violation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0111393","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":"hep-ph/0111393","created_at":"2026-05-18T00:37:12.970950+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0111393v1","created_at":"2026-05-18T00:37:12.970950+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0111393","created_at":"2026-05-18T00:37:12.970950+00:00"},{"alias_kind":"pith_short_12","alias_value":"4W4KILNWNT36","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_16","alias_value":"4W4KILNWNT36CPRY","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_8","alias_value":"4W4KILNW","created_at":"2026-05-18T12:25:50.254431+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/4W4KILNWNT36CPRY7UPQ4XZVY5","json":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5.json","graph_json":"https://pith.science/api/pith-number/4W4KILNWNT36CPRY7UPQ4XZVY5/graph.json","events_json":"https://pith.science/api/pith-number/4W4KILNWNT36CPRY7UPQ4XZVY5/events.json","paper":"https://pith.science/paper/4W4KILNW"},"agent_actions":{"view_html":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5","download_json":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5.json","view_paper":"https://pith.science/paper/4W4KILNW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/0111393&json=true","fetch_graph":"https://pith.science/api/pith-number/4W4KILNWNT36CPRY7UPQ4XZVY5/graph.json","fetch_events":"https://pith.science/api/pith-number/4W4KILNWNT36CPRY7UPQ4XZVY5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5/action/storage_attestation","attest_author":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5/action/author_attestation","sign_citation":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5/action/citation_signature","submit_replication":"https://pith.science/pith/4W4KILNWNT36CPRY7UPQ4XZVY5/action/replication_record"}},"created_at":"2026-05-18T00:37:12.970950+00:00","updated_at":"2026-05-18T00:37:12.970950+00:00"}