{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1994:YTSIEKHGQCT2UKOCCCKT3HJUKV","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":"d94362b2c1da5e40cc21c0ddf908f4d56625b04148d84484f2ed1a508d3f39ca","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1994-03-09T17:43:02Z","title_canon_sha256":"f8d595b08018648a7535816648cf80dcf891d5b1237438385565274e4f47e7cc"},"schema_version":"1.0","source":{"id":"hep-ph/9403253","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9403253","created_at":"2026-05-18T04:37:45Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9403253v1","created_at":"2026-05-18T04:37:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9403253","created_at":"2026-05-18T04:37:45Z"},{"alias_kind":"pith_short_12","alias_value":"YTSIEKHGQCT2","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"YTSIEKHGQCT2UKOC","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"YTSIEKHG","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:28de0f716df476abf76b56f1586abcb485fb244d23144753d205317d1971e805","target":"graph","created_at":"2026-05-18T04:37:45Z","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 estimate the sum of the $\\Upsilon \\bar BB $ couplings using QCD Spectral Sum Rules (QSSR). Our result implies the phenomenological bound $\\xi'(vv'=1) \\geq -1.04$ for the slope of the Isgur-Wise function. An analytic estimate of the (physical) slope to two loops within QSSR leads to the accurate value $\\xi'(vv'=1) \\simeq -(1.00 \\pm 0.02)$ due to the (almost) complete cancellations between the perturbative and non-perturbative corrections at the stability points. Then, we deduce, from the present data, the improved estimate $\\vert V_{cb} \\vert \\simeq \\ga 1.48 \\mbox{ps}/\\tau_B \\dr ^{1/2}(37.3 ","authors_text":"S. Narison","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1994-03-09T17:43:02Z","title":"Upsilon \\bar BB$ Couplings, Slope of the Isgur-Wise Function and Improved Estimate of \\boldmath{$V_{cb}$}}"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9403253","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:ef0a059dc54bf31ac2cbd2ba76e5879fc1f80a4345ff276e2b17a59d6c1b9db1","target":"record","created_at":"2026-05-18T04:37:45Z","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":"d94362b2c1da5e40cc21c0ddf908f4d56625b04148d84484f2ed1a508d3f39ca","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1994-03-09T17:43:02Z","title_canon_sha256":"f8d595b08018648a7535816648cf80dcf891d5b1237438385565274e4f47e7cc"},"schema_version":"1.0","source":{"id":"hep-ph/9403253","kind":"arxiv","version":1}},"canonical_sha256":"c4e48228e680a7aa29c210953d9d3455460876297b4cd6ef27b700fd516963be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4e48228e680a7aa29c210953d9d3455460876297b4cd6ef27b700fd516963be","first_computed_at":"2026-05-18T04:37:45.713008Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:37:45.713008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RGuLGbl5uMuN6XzDZNujjdcBKTgvnVPadbF/Z6+NoOuYBh0M98wmqL+Ahe5Bn049BVbL7GKE2mlY/QsZax3DAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:37:45.713527Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9403253","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef0a059dc54bf31ac2cbd2ba76e5879fc1f80a4345ff276e2b17a59d6c1b9db1","sha256:28de0f716df476abf76b56f1586abcb485fb244d23144753d205317d1971e805"],"state_sha256":"8a9105b919d405c74b4b4b62fdcdf16d9ada41af76f7649978824c82e3a40349"}