{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:DG44NMCEZE6YHSMI4HDXF7SVE2","short_pith_number":"pith:DG44NMCE","canonical_record":{"source":{"id":"hep-ph/0006068","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-06-07T21:46:23Z","cross_cats_sorted":[],"title_canon_sha256":"566d6b9524b17b44c5b09997ae5f8ead2e97ca38295120186ccfff0b08dcdfb6","abstract_canon_sha256":"49bff3621384a05de962051a88fa5227fe9e24559b17a94a2eefed8d4d2658be"},"schema_version":"1.0"},"canonical_sha256":"19b9c6b044c93d83c988e1c772fe55268ed9127aa06e071d7e637cdea303d48d","source":{"kind":"arxiv","id":"hep-ph/0006068","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0006068","created_at":"2026-05-18T02:36:50Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0006068v1","created_at":"2026-05-18T02:36:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0006068","created_at":"2026-05-18T02:36:50Z"},{"alias_kind":"pith_short_12","alias_value":"DG44NMCEZE6Y","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DG44NMCEZE6YHSMI","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DG44NMCE","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:DG44NMCEZE6YHSMI4HDXF7SVE2","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0006068","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-06-07T21:46:23Z","cross_cats_sorted":[],"title_canon_sha256":"566d6b9524b17b44c5b09997ae5f8ead2e97ca38295120186ccfff0b08dcdfb6","abstract_canon_sha256":"49bff3621384a05de962051a88fa5227fe9e24559b17a94a2eefed8d4d2658be"},"schema_version":"1.0"},"canonical_sha256":"19b9c6b044c93d83c988e1c772fe55268ed9127aa06e071d7e637cdea303d48d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:36:50.079388Z","signature_b64":"LJw/8UZmFhDGBWvs2FWsm8Vh1IbjhoXgHvnF6i2DcE7qq7ld2AmuOflvQWv2VCkJgfd4WrNszRtGoV5VhJhfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19b9c6b044c93d83c988e1c772fe55268ed9127aa06e071d7e637cdea303d48d","last_reissued_at":"2026-05-18T02:36:50.078866Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:36:50.078866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0006068","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:36:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2TNUTqlO/uTy/kx0Sj6aK2dz2pNg9XAflo7ZSR7nB05TmpaCePrs89MJvqobiZ6SdIzAOuBqbB3VsUuomzSRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T12:25:48.008180Z"},"content_sha256":"218133c1e47a04f1e2380bfbb6412229bc7c6f53788f959d62d945268dafef65","schema_version":"1.0","event_id":"sha256:218133c1e47a04f1e2380bfbb6412229bc7c6f53788f959d62d945268dafef65"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:DG44NMCEZE6YHSMI4HDXF7SVE2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Inclusive Determination of V_{ub} from the Lepton Invariant Mass Spectrum","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Matthias Neubert (Cornell)","submitted_at":"2000-06-07T21:46:23Z","abstract_excerpt":"Bauer, Ligeti and Luke have recently proposed a new method for measuring |V_{ub}| in inclusive semileptonic B decays, using a cut on the lepton invariant mass to discriminate against b->c transitions. We investigate the structure of the heavy-quark expansion for this case and show that to all orders the magnitude of the leading perturbative and nonperturbative corrections is controlled by a hadronic scale mu_c=O(m_c) depending on the minimal value of q^2. These corrections can be analyzed using a modified version of the heavy-quark expansion (``hybrid expansion''). We find that the theoretical"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0006068","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:36:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XyFEbirArTiagahniNN3frhc9DiMBf7A7fLvXcEsMQnRpWUusFNMeD11yasEVlaQNHSf1W9NzZvGgYSfiZIkDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T12:25:48.008631Z"},"content_sha256":"49ef115c23332a961f98f4a40e5b9317d495dbc268622ac9bfb9b9279e0b61e6","schema_version":"1.0","event_id":"sha256:49ef115c23332a961f98f4a40e5b9317d495dbc268622ac9bfb9b9279e0b61e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DG44NMCEZE6YHSMI4HDXF7SVE2/bundle.json","state_url":"https://pith.science/pith/DG44NMCEZE6YHSMI4HDXF7SVE2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DG44NMCEZE6YHSMI4HDXF7SVE2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-18T12:25:48Z","links":{"resolver":"https://pith.science/pith/DG44NMCEZE6YHSMI4HDXF7SVE2","bundle":"https://pith.science/pith/DG44NMCEZE6YHSMI4HDXF7SVE2/bundle.json","state":"https://pith.science/pith/DG44NMCEZE6YHSMI4HDXF7SVE2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DG44NMCEZE6YHSMI4HDXF7SVE2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:DG44NMCEZE6YHSMI4HDXF7SVE2","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":"49bff3621384a05de962051a88fa5227fe9e24559b17a94a2eefed8d4d2658be","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-06-07T21:46:23Z","title_canon_sha256":"566d6b9524b17b44c5b09997ae5f8ead2e97ca38295120186ccfff0b08dcdfb6"},"schema_version":"1.0","source":{"id":"hep-ph/0006068","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0006068","created_at":"2026-05-18T02:36:50Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0006068v1","created_at":"2026-05-18T02:36:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0006068","created_at":"2026-05-18T02:36:50Z"},{"alias_kind":"pith_short_12","alias_value":"DG44NMCEZE6Y","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DG44NMCEZE6YHSMI","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DG44NMCE","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:49ef115c23332a961f98f4a40e5b9317d495dbc268622ac9bfb9b9279e0b61e6","target":"graph","created_at":"2026-05-18T02:36:50Z","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":"Bauer, Ligeti and Luke have recently proposed a new method for measuring |V_{ub}| in inclusive semileptonic B decays, using a cut on the lepton invariant mass to discriminate against b->c transitions. We investigate the structure of the heavy-quark expansion for this case and show that to all orders the magnitude of the leading perturbative and nonperturbative corrections is controlled by a hadronic scale mu_c=O(m_c) depending on the minimal value of q^2. These corrections can be analyzed using a modified version of the heavy-quark expansion (``hybrid expansion''). We find that the theoretical","authors_text":"Matthias Neubert (Cornell)","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-06-07T21:46:23Z","title":"On the Inclusive Determination of V_{ub} from the Lepton Invariant Mass Spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0006068","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":"sha256:218133c1e47a04f1e2380bfbb6412229bc7c6f53788f959d62d945268dafef65","target":"record","created_at":"2026-05-18T02:36:50Z","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":"49bff3621384a05de962051a88fa5227fe9e24559b17a94a2eefed8d4d2658be","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-06-07T21:46:23Z","title_canon_sha256":"566d6b9524b17b44c5b09997ae5f8ead2e97ca38295120186ccfff0b08dcdfb6"},"schema_version":"1.0","source":{"id":"hep-ph/0006068","kind":"arxiv","version":1}},"canonical_sha256":"19b9c6b044c93d83c988e1c772fe55268ed9127aa06e071d7e637cdea303d48d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19b9c6b044c93d83c988e1c772fe55268ed9127aa06e071d7e637cdea303d48d","first_computed_at":"2026-05-18T02:36:50.078866Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:36:50.078866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LJw/8UZmFhDGBWvs2FWsm8Vh1IbjhoXgHvnF6i2DcE7qq7ld2AmuOflvQWv2VCkJgfd4WrNszRtGoV5VhJhfBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:36:50.079388Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0006068","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:218133c1e47a04f1e2380bfbb6412229bc7c6f53788f959d62d945268dafef65","sha256:49ef115c23332a961f98f4a40e5b9317d495dbc268622ac9bfb9b9279e0b61e6"],"state_sha256":"cf070dc13a1546c1d7d7e11df56999fe8c93579f132f2e9a8b9a32277856bf63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eTLfW654RIeLAW+wbvJ1zuGtecAzKT5+YgGtSkLo2whD3RtTmKMxbjm3N0gM8QEAGtCYNfrPPhkUZ+irTizGAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T12:25:48.015554Z","bundle_sha256":"1b2667eb5ee4e347bf5874ef1159a572f86215eee60e7f3f377f81f95a449ea5"}}