{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:4ZHAV6ZVF7RLPZOFSZNXUEOYUP","short_pith_number":"pith:4ZHAV6ZV","canonical_record":{"source":{"id":"0810.0987","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-10-06T15:46:12Z","cross_cats_sorted":[],"title_canon_sha256":"e9b358d6b8adfdf1b46faed9e32a4df8c8108b71d7fdacd5b21051b5ef426dd4","abstract_canon_sha256":"e40e030fa16cde4e4e5d511701a16a4667b27f8eed5cb227d9a8cf5700424618"},"schema_version":"1.0"},"canonical_sha256":"e64e0afb352fe2b7e5c5965b7a11d8a3d6b067f4684eadc56f9237b2d8223b04","source":{"kind":"arxiv","id":"0810.0987","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.0987","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"0810.0987v1","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.0987","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"4ZHAV6ZVF7RL","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"pith_short_16","alias_value":"4ZHAV6ZVF7RLPZOF","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"pith_short_8","alias_value":"4ZHAV6ZV","created_at":"2026-07-04T15:35:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:4ZHAV6ZVF7RLPZOFSZNXUEOYUP","target":"record","payload":{"canonical_record":{"source":{"id":"0810.0987","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-10-06T15:46:12Z","cross_cats_sorted":[],"title_canon_sha256":"e9b358d6b8adfdf1b46faed9e32a4df8c8108b71d7fdacd5b21051b5ef426dd4","abstract_canon_sha256":"e40e030fa16cde4e4e5d511701a16a4667b27f8eed5cb227d9a8cf5700424618"},"schema_version":"1.0"},"canonical_sha256":"e64e0afb352fe2b7e5c5965b7a11d8a3d6b067f4684eadc56f9237b2d8223b04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:35:50.191354Z","signature_b64":"vrGdUxGEze1pTCDAV/byRk3K8vzLCNTwB68iPjoOzl61qwBmI0RkTYVlWsN1waKWAwsxuIBrPNJ8bUz88kIkDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e64e0afb352fe2b7e5c5965b7a11d8a3d6b067f4684eadc56f9237b2d8223b04","last_reissued_at":"2026-07-04T15:35:50.190949Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:35:50.190949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0810.0987","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":"2026-07-04T15:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fFK1yOASMSKXOUZKdl0LJ2KgEzQ4NkzLafHybshM2WWWwlvm2euTvvupNwPu2q97gUwbBvz7HWPyUgbjZT03CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T04:09:40.433383Z"},"content_sha256":"45499bd58d302a1ceeb4bcc3ef99bb7dd7f189980412a18779ddc8c0e98d4582","schema_version":"1.0","event_id":"sha256:45499bd58d302a1ceeb4bcc3ef99bb7dd7f189980412a18779ddc8c0e98d4582"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:4ZHAV6ZVF7RLPZOFSZNXUEOYUP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NNLO corrections to B --> X_u l nu in the shape-function region","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"B.D. Pecjak, C. Greub, H.M. Asatrian","submitted_at":"2008-10-06T15:46:12Z","abstract_excerpt":"The inclusive decay B --> X_u l nu is of much interest because of its potential to constrain the CKM element |V_ub|. Experimental cuts required to suppress charm background restrict measurements of this decay to the shape-function region, where the hadronic final state carries a large energy but only a moderate invariant mass. In this kinematic region, the differential decay distributions satisfy a factorization formula of the form $H \\cdot J \\otimes S$, where S is the non-perturbative shape function, and the object $H \\cdot J$ is a perturbatively calculable hard-scattering kernel. In this pap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.0987","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0810.0987/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AL805EJ35MjuJjCaiQP2z6KMkRh10PGLT/dkBV41QSB5jMpEPYlaObcFCDcLj2uMOGwbg8yJVQKBCH0XRFm3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T04:09:40.433770Z"},"content_sha256":"9636d909ba72b6078f96cac62469c8d7472ad50dfdff4e3cc143619bf503fa9f","schema_version":"1.0","event_id":"sha256:9636d909ba72b6078f96cac62469c8d7472ad50dfdff4e3cc143619bf503fa9f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP/bundle.json","state_url":"https://pith.science/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP/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":"2026-07-21T04:09:40Z","links":{"resolver":"https://pith.science/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP","bundle":"https://pith.science/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP/bundle.json","state":"https://pith.science/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ZHAV6ZVF7RLPZOFSZNXUEOYUP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:4ZHAV6ZVF7RLPZOFSZNXUEOYUP","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":"e40e030fa16cde4e4e5d511701a16a4667b27f8eed5cb227d9a8cf5700424618","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-10-06T15:46:12Z","title_canon_sha256":"e9b358d6b8adfdf1b46faed9e32a4df8c8108b71d7fdacd5b21051b5ef426dd4"},"schema_version":"1.0","source":{"id":"0810.0987","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.0987","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"0810.0987v1","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.0987","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"4ZHAV6ZVF7RL","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"pith_short_16","alias_value":"4ZHAV6ZVF7RLPZOF","created_at":"2026-07-04T15:35:50Z"},{"alias_kind":"pith_short_8","alias_value":"4ZHAV6ZV","created_at":"2026-07-04T15:35:50Z"}],"graph_snapshots":[{"event_id":"sha256:9636d909ba72b6078f96cac62469c8d7472ad50dfdff4e3cc143619bf503fa9f","target":"graph","created_at":"2026-07-04T15:35:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0810.0987/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The inclusive decay B --> X_u l nu is of much interest because of its potential to constrain the CKM element |V_ub|. Experimental cuts required to suppress charm background restrict measurements of this decay to the shape-function region, where the hadronic final state carries a large energy but only a moderate invariant mass. In this kinematic region, the differential decay distributions satisfy a factorization formula of the form $H \\cdot J \\otimes S$, where S is the non-perturbative shape function, and the object $H \\cdot J$ is a perturbatively calculable hard-scattering kernel. In this pap","authors_text":"B.D. Pecjak, C. Greub, H.M. Asatrian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-10-06T15:46:12Z","title":"NNLO corrections to B --> X_u l nu in the shape-function region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.0987","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":"sha256:45499bd58d302a1ceeb4bcc3ef99bb7dd7f189980412a18779ddc8c0e98d4582","target":"record","created_at":"2026-07-04T15:35:50Z","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":"e40e030fa16cde4e4e5d511701a16a4667b27f8eed5cb227d9a8cf5700424618","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-10-06T15:46:12Z","title_canon_sha256":"e9b358d6b8adfdf1b46faed9e32a4df8c8108b71d7fdacd5b21051b5ef426dd4"},"schema_version":"1.0","source":{"id":"0810.0987","kind":"arxiv","version":1}},"canonical_sha256":"e64e0afb352fe2b7e5c5965b7a11d8a3d6b067f4684eadc56f9237b2d8223b04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e64e0afb352fe2b7e5c5965b7a11d8a3d6b067f4684eadc56f9237b2d8223b04","first_computed_at":"2026-07-04T15:35:50.190949Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:35:50.190949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vrGdUxGEze1pTCDAV/byRk3K8vzLCNTwB68iPjoOzl61qwBmI0RkTYVlWsN1waKWAwsxuIBrPNJ8bUz88kIkDw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:35:50.191354Z","signed_message":"canonical_sha256_bytes"},"source_id":"0810.0987","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45499bd58d302a1ceeb4bcc3ef99bb7dd7f189980412a18779ddc8c0e98d4582","sha256:9636d909ba72b6078f96cac62469c8d7472ad50dfdff4e3cc143619bf503fa9f"],"state_sha256":"54f5f87a59ac0c366b517730d88efcd603276263f4a5e08059987b52ac4252b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jGopA1eg+48volHeOjblC4SS2YBdIkFEM7d//cvpn2Qev3rvAlP/kt544e0Z1jvuR0m8EVJ3QkwxmhCX/uVQBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T04:09:40.436339Z","bundle_sha256":"89b82b52f79b570635af052e7fdbe469dcc65e56c0122cbe4971580fba5401ba"}}