{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:4XPFPGLY242UQHWNYPF766RRSP","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":"5167f85808f30d410a3a58cf6c89698ed57b4cd13f716bc7c99a65aef43cd2a8","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-01-13T10:25:39Z","title_canon_sha256":"0e3b941bd0699e1b407e6892d4192db25c1a929112b6989f7d2ba87eeb038495"},"schema_version":"1.0","source":{"id":"hep-ph/9901288","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9901288","created_at":"2026-07-04T15:54:10Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9901288v1","created_at":"2026-07-04T15:54:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9901288","created_at":"2026-07-04T15:54:10Z"},{"alias_kind":"pith_short_12","alias_value":"4XPFPGLY242U","created_at":"2026-07-04T15:54:10Z"},{"alias_kind":"pith_short_16","alias_value":"4XPFPGLY242UQHWN","created_at":"2026-07-04T15:54:10Z"},{"alias_kind":"pith_short_8","alias_value":"4XPFPGLY","created_at":"2026-07-04T15:54:10Z"}],"graph_snapshots":[{"event_id":"sha256:66ae30d8e29b054a4b2d296ce93206a394d66c84460c3b175753a95a4f10dabf","target":"graph","created_at":"2026-07-04T15:54:10Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/hep-ph/9901288/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We update the Standard Model predictions for the rare decays $K^+\\to\\pi^+\\nu\\bar\\nu$ and $K_L\\to\\pi^0\\nu\\bar\\nu$. In view of improved limits on $B_s$--$\\bar B_s$ mixing we derive a stringent and theoretically clean Standard Model upper limit on $B(K^+\\to\\pi^+\\nu\\bar\\nu)$, which is based on the ratio of $B_d$--$\\bar B_d$ to $B_s$--$\\bar B_s$ mixing, $\\Delta M_d/\\Delta M_s$, alone. This method avoids the large hadronic uncertainties present in the usual analysis of the CKM matrix. We find $B(K^+\\to\\pi^+\\nu\\bar\\nu)< 1.67\\cdot 10^{-10}$, which can be further improved in the future. In addition we ","authors_text":"Andrzej J. Buras (TU Munich), Gerhard Buchalla (CERN)","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1999-01-13T10:25:39Z","title":"The Rare Decays $K\\to\\pi\\nu\\bar\\nu$, $B\\to X\\nu\\bar\\nu$ and $B\\to l^+l^-$ -- An Update"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9901288","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":"sha256:59b363d73876be3edc8388ff75e9e3d90eb93c7d9465c9f8a05ee2a014a77855","target":"record","created_at":"2026-07-04T15:54:10Z","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":"5167f85808f30d410a3a58cf6c89698ed57b4cd13f716bc7c99a65aef43cd2a8","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-01-13T10:25:39Z","title_canon_sha256":"0e3b941bd0699e1b407e6892d4192db25c1a929112b6989f7d2ba87eeb038495"},"schema_version":"1.0","source":{"id":"hep-ph/9901288","kind":"arxiv","version":1}},"canonical_sha256":"e5de579978d735481ecdc3cbff7a3193dca8b7fb897a5d83479902173aa45db4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5de579978d735481ecdc3cbff7a3193dca8b7fb897a5d83479902173aa45db4","first_computed_at":"2026-07-04T15:54:10.531970Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:54:10.531970Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C0n4SDxiZlMzwRPGMrsm93DGVNCwKa8epVDk7EjFHZVH4Gi1V0g+hgzxcd7Qly1yqKmy/l3G/alZpp9aubnCCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:54:10.532399Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9901288","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:59b363d73876be3edc8388ff75e9e3d90eb93c7d9465c9f8a05ee2a014a77855","sha256:66ae30d8e29b054a4b2d296ce93206a394d66c84460c3b175753a95a4f10dabf"],"state_sha256":"86978f7e8bbcc62810e26a8be8b60c04940e9b0da8161d6d3dcf3ca86b73eb47"}