{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:SDT2P6CNEIYI7KNE6BB6ER76GO","short_pith_number":"pith:SDT2P6CN","canonical_record":{"source":{"id":"1108.0909","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-08-03T18:28:04Z","cross_cats_sorted":[],"title_canon_sha256":"d60125db658ae411477a29fd08eee744145d1410cb70dee6f5f43bc4d390cbae","abstract_canon_sha256":"f1758385a7eeebd293fe4b37fb1e3bbed876929907ba22d0ee6c673031bfa468"},"schema_version":"1.0"},"canonical_sha256":"90e7a7f84d22308fa9a4f043e247fe33a88a62b3816a457a6121af600c433ad9","source":{"kind":"arxiv","id":"1108.0909","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0909","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0909v2","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0909","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"pith_short_12","alias_value":"SDT2P6CNEIYI","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"SDT2P6CNEIYI7KNE","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"SDT2P6CN","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:SDT2P6CNEIYI7KNE6BB6ER76GO","target":"record","payload":{"canonical_record":{"source":{"id":"1108.0909","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-08-03T18:28:04Z","cross_cats_sorted":[],"title_canon_sha256":"d60125db658ae411477a29fd08eee744145d1410cb70dee6f5f43bc4d390cbae","abstract_canon_sha256":"f1758385a7eeebd293fe4b37fb1e3bbed876929907ba22d0ee6c673031bfa468"},"schema_version":"1.0"},"canonical_sha256":"90e7a7f84d22308fa9a4f043e247fe33a88a62b3816a457a6121af600c433ad9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:03.387907Z","signature_b64":"vDpZ0ejagc/sglmnd/UPVLfNOtfZEi89BUvmGdc70FpKiqsn3ugNVZtKTAeuIGO65ISedOKW0agDF11A7GKiAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90e7a7f84d22308fa9a4f043e247fe33a88a62b3816a457a6121af600c433ad9","last_reissued_at":"2026-05-18T02:01:03.387174Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:03.387174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.0909","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oDgRT/IgpZPf0e9/fmZu/cSRJZkIl/u2YFts35o/cN2Fldv26PWprHcGIw0muN0SJaP1H1DSUd5/r6p8PdSIAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:48:20.022635Z"},"content_sha256":"1d353ddf3ca46b211d0cdfd7dcfab0335316d9a331cc4624596dd8bf5bbccf69","schema_version":"1.0","event_id":"sha256:1d353ddf3ca46b211d0cdfd7dcfab0335316d9a331cc4624596dd8bf5bbccf69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:SDT2P6CNEIYI7KNE6BB6ER76GO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Practical improvements and merging of POWHEG simulations for vector boson production","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Emanuele Re, Keith Hamilton, Simone Alioli","submitted_at":"2011-08-03T18:28:04Z","abstract_excerpt":"In this article we generalise POWHEG next-to-leading order parton shower (NLOPS) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected MENLOPS simulations. In so doing we extend and provide, for the first time, an exact and faithful implementation of the MENLOPS formalism in hadronic collisions. We also consider merging the resulting event samples according to a phase space partition defined in terms of an effective jet clustering scale. The merging scale is restricted such that the component generated by the assoc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0909","kind":"arxiv","version":2},"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":"2026-05-18T02:01:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a17UfrM9JrbfzDPmMUlrvjPB3hLgiFCJGQQRZnqzxVyyzKfH48Zt8Up3/lQ+8lY1hSVlP7eHq9VqGSthDcRfBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:48:20.023226Z"},"content_sha256":"30bbd70ed0aef74f687cddab714c5c2178a1f8555ffa73c04b693c7b1a0a29c5","schema_version":"1.0","event_id":"sha256:30bbd70ed0aef74f687cddab714c5c2178a1f8555ffa73c04b693c7b1a0a29c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SDT2P6CNEIYI7KNE6BB6ER76GO/bundle.json","state_url":"https://pith.science/pith/SDT2P6CNEIYI7KNE6BB6ER76GO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SDT2P6CNEIYI7KNE6BB6ER76GO/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":"2026-06-04T20:48:20Z","links":{"resolver":"https://pith.science/pith/SDT2P6CNEIYI7KNE6BB6ER76GO","bundle":"https://pith.science/pith/SDT2P6CNEIYI7KNE6BB6ER76GO/bundle.json","state":"https://pith.science/pith/SDT2P6CNEIYI7KNE6BB6ER76GO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SDT2P6CNEIYI7KNE6BB6ER76GO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:SDT2P6CNEIYI7KNE6BB6ER76GO","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":"f1758385a7eeebd293fe4b37fb1e3bbed876929907ba22d0ee6c673031bfa468","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-08-03T18:28:04Z","title_canon_sha256":"d60125db658ae411477a29fd08eee744145d1410cb70dee6f5f43bc4d390cbae"},"schema_version":"1.0","source":{"id":"1108.0909","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0909","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0909v2","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0909","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"pith_short_12","alias_value":"SDT2P6CNEIYI","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"SDT2P6CNEIYI7KNE","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"SDT2P6CN","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:30bbd70ed0aef74f687cddab714c5c2178a1f8555ffa73c04b693c7b1a0a29c5","target":"graph","created_at":"2026-05-18T02:01:03Z","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":"In this article we generalise POWHEG next-to-leading order parton shower (NLOPS) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected MENLOPS simulations. In so doing we extend and provide, for the first time, an exact and faithful implementation of the MENLOPS formalism in hadronic collisions. We also consider merging the resulting event samples according to a phase space partition defined in terms of an effective jet clustering scale. The merging scale is restricted such that the component generated by the assoc","authors_text":"Emanuele Re, Keith Hamilton, Simone Alioli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-08-03T18:28:04Z","title":"Practical improvements and merging of POWHEG simulations for vector boson production"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0909","kind":"arxiv","version":2},"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":"sha256:1d353ddf3ca46b211d0cdfd7dcfab0335316d9a331cc4624596dd8bf5bbccf69","target":"record","created_at":"2026-05-18T02:01:03Z","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":"f1758385a7eeebd293fe4b37fb1e3bbed876929907ba22d0ee6c673031bfa468","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-08-03T18:28:04Z","title_canon_sha256":"d60125db658ae411477a29fd08eee744145d1410cb70dee6f5f43bc4d390cbae"},"schema_version":"1.0","source":{"id":"1108.0909","kind":"arxiv","version":2}},"canonical_sha256":"90e7a7f84d22308fa9a4f043e247fe33a88a62b3816a457a6121af600c433ad9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90e7a7f84d22308fa9a4f043e247fe33a88a62b3816a457a6121af600c433ad9","first_computed_at":"2026-05-18T02:01:03.387174Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:03.387174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vDpZ0ejagc/sglmnd/UPVLfNOtfZEi89BUvmGdc70FpKiqsn3ugNVZtKTAeuIGO65ISedOKW0agDF11A7GKiAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:03.387907Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0909","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d353ddf3ca46b211d0cdfd7dcfab0335316d9a331cc4624596dd8bf5bbccf69","sha256:30bbd70ed0aef74f687cddab714c5c2178a1f8555ffa73c04b693c7b1a0a29c5"],"state_sha256":"bb6d3db2e417fc58c4cfac9da63194c3f4694bc148d8f807363f1fd23cc99024"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CUIawiAkpYIERGo8kcGsG9/uFJ94550GLr1AfDNLB2dAbS4SQrjno1l+TMB9c0vle2/rcuPLFAppELrF0UOBBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:48:20.027066Z","bundle_sha256":"55acea2a53e6e3aa78a52bfc52c664b3924cb5d47f9198f75b0be6456aa019b5"}}